ERW CommandGas

THE INTELLIGENT GAS LEADERSHIP PROGRAMME

Carry the promise through.

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15-Session Programme · 25 Minutes Per Day · Free · For leaders in Nigeria’s gas and industrial energy businesses
WEEK 1 OF 3 · LEADERSHIP, GAS ECONOMICS AND PROCESSING · SESSIONS 1–5 · WORK AT YOUR OWN PACE
This week’s assessments: Pop Quiz 1 — The Promise, the Toolkit and the Value Chains after Session 3 · Practice Exam 1 — Leadership, Gas Economics and Processing after Session 5
By Session 15: you hold a signed 90-Day AI Leadership Plan for your own company · Every assignment marked against a published rubric · Pass mark 70
Orientation · The Promise at the Delivery PointSESSION 1
The Promise at the Delivery Point and the Reader's Toolkit
Session 1 of 15 · 25-Minute Module

Why This Matters

A gas business has to connect physical supply with the promise made to a customer, and its records then have to show what was delivered, billed and collected. Artificial intelligence can support those decisions when the business has dependable evidence and an accountable route for acting on it. Over fifteen sessions you will build a signed 90-Day AI Leadership Plan for your own company around one real operating decision you choose today: one with a feasible response, that affects a customer promise and currently costs your company time, money or service. The customer promise remains the test.

25-Minute Module
5:00 – 10:00
A business defined by interfaces
  • The book's fictional industrial customer restarts on Monday. A window is agreed, a compressor is expected back on Sunday, the receiving station has a maintenance restriction and credit was approved against an earlier quantity. Every department can report progress while the combined promise remains impossible.
  • The executive question is which constraint must change before delivery can be accepted. A forecast might expose the mismatch; it cannot establish permission, readiness or acceptance.
  • Forecasting estimates an uncertain future. Anomaly detection identifies departures requiring investigation. Optimisation compares feasible actions under an objective and constraints. Simulation tests how a proposed action may affect a physical or commercial system. A language model can help retrieve and organise text. Each has different failure modes and acceptance evidence; know which component produced each conclusion.
  • Processing, pipelines, LNG, CNG, LPG and industrial supply have problems that are not interchangeable. Apply an example from an activity you do not run to your nearest equivalent decision, without assuming its evidence or controls transfer.
  • Nigeria's Petroleum Industry Act, 2021 establishes separate upstream and midstream/downstream regulatory institutions (Petroleum Industry Act, 2021, sections 4 to 8 and 29 to 33). Map an asset's activity and permissions before treating another operation as its regulatory equivalent; legal and technical owners establish the actual obligations.
Count accepted outcomes, not predictions, alerts or documents.
18:00 – 22:00
A completed decision specification
  • The book's completed specification is illustrative, with assumed scope, not a project approval or engineering recommendation.
  • FieldIllustrative entry
    DecisionWhether to revise tomorrow's industrial delivery allocation
    Decision timeBefore the agreed customer confirmation cut-off
    Evidence and capabilityAccepted supply, receiving windows, equipment status, contract priorities; forecast plus constrained allocation comparison
    Existing alternative and boundaryPlanner's accepted rule-based schedule; one supply point and three named internal customer identifiers
    AuthorityPlanner proposes; operations checks; commercial owner accepts changes
    Stop conditionStale supply status, unconfirmed receiving restriction or infeasible allocation
    Acceptance and value evidenceLess accepted shortfall without additional unauthorised exposure or disproportionate review; delivery records, agreed consequences, incremental cost
  • THE DOCTRINE

    Before approving development, ask what information the model could reveal that would actually change the decision. If no feasible action follows the output, redefine the use.

  • Such a forecast may still support communication; evaluate it as that, not as additional supply. If no evidence could change your recommendation, the review has become advocacy.
A specification you cannot fill in honestly is itself a finding.
Key Terms

Data contract

A short record naming a source's owner, refresh method, acceptable age, unit, reference basis, treatment of missing information and restriction on reuse.

Decision specification

The Chapter 0 fields for one decision, from decision time to stop condition and value evidence, written before development is approved.

Self-Check — Before You Submit
1. A fictional supplier's forecast shows that Monday's industrial delivery is at risk, but the receiving station's maintenance restriction is unresolved. What can the forecast do, and what can it not establish?
  • A. Establish that the delivery can be accepted
  • B. Expose the mismatch; it does not establish permission, readiness or acceptance
  • C. Authorise automatic reallocation of supply
  • D. Show that the commercial team has failed
B. Expose the mismatch; it does not establish permission, readiness or acceptance — A forecast might expose the mismatch, but none of the analytical outputs establishes permission, equipment readiness or customer acceptance; those are resolved in the systems and authority that govern them. Automatic reallocation is tempting but skips that authority.
2. A delivery option has a high margin but carries an unresolved safety condition. How does the Value-versus-Risk Map treat it?
  • A. As a weakness scored against the margin
  • B. As acceptable if the margin is large enough
  • C. As a matter for the vendor
  • D. As outside the ranking until the condition is satisfied
D. As outside the ranking until the condition is satisfied — Non-negotiable safety, integrity, permission and authority conditions stay outside the economic ranking and must be satisfied before options are compared. Scoring it against the margin is the trap the book names.
3. Your team proposes a demand forecast, but no feasible action would follow its output before the confirmation cut-off. What should you do?
  • A. Redefine the use, or evaluate it as a communication capability
  • B. Approve it, since better information always helps
  • C. Credit it with the shortfall it predicts
  • D. Ask for a more accurate model
A. Redefine the use, or evaluate it as a communication capability — If no feasible action follows the output, redefine the use. It may still support communication, but must not be credited with additional physical supply. A more accurate model does not create a response.

Today’s Assignment

Name your company and where it sits in the gas value chain, choose the one real operating decision you will carry, draft its decision specification and show where its Operating-Intelligence Loop breaks.
  • Your company. Its name and where it sits: processing, compression, pipeline transport, LNG, CNG, LPG, industrial gas supply, an industrial energy user, or other. Name the customer promise involved.
  • The decision. One real operating decision with a feasible response that affects a customer promise and currently costs your company time, money or service. State what must be decided, by when, the physical and contractual constraints, who can authorise the action, the current alternative and what evidence would show the decision improved.
  • The specification. Draft the Chapter 0 fields: decision, decision time, evidence, proposed capability, existing alternative, boundary, authority, stop condition, acceptance and value evidence. Flag any you cannot yet fill.
  • Where the loop breaks. Name the stage where it stops, why, and who owns it by role.
  • The honest part. What your company gets wrong about this decision today. No AI in use yet is normal.
  • Four hundred to nine hundred words.
YOUR 90-DAY PLAN

Section 1 — Our company, the one decision we will carry, its decision specification and where its loop breaks.

How this is marked — the rubric
Names the company, its place in the gas value chain and the customer promise involved15
States one decision with deadline, physical and contractual constraints, authority by role, current alternative and improvement evidence30
Completes the decision specification fields honestly, flagging any that cannot yet be filled25
Locates the loop break at a named stage with a reason and an owner by role, and names a real weakness30
Total · pass mark 70100
Submitting session 1
Write your answer in Word or Google Docs. The first line must read Session: 1, or the submission is refused. Upload the Word file (.docx), or switch to the Google Doc tab and paste your document’s share link.
Marked against the rubric above and returned as a written letter, saved to your progress page. Do not submit until you have passed the self-check above.
Capabilities Covered
Decision-first thinkingThe six toolkit frameworksTelling analytical capabilities apartWriting a decision specificationLocating the broken loop stage
Tick it once you have submitted.Next: Session 2 →
Chapter 1 · Leadership and Gas EconomicsSESSION 2
Leading a Gas Business with Operating Evidence
Session 2 of 15 · 25-Minute Module

Why This Matters

In the book's fictional supplier, the problem is not a shortage of optimism or dashboards. It is a commitment that nobody has checked as one decision: the order is booked, the vehicle awaits a part and the gas purchase must be paid before the customer pays. This session teaches you to define the promise backwards from the delivery point, to give every assumption an owner and an evidence state, and to run a daily review that follows the action through to acceptance. It also shows, with a worked example, how a correct warning can reveal a management decision rather than a technology gap. Your decision from Session 1 is the case.

25-Minute Module
5:00 – 10:00
Define the promise backwards
  • Begin at the delivery point. Record the product, quantity, accepted quality basis, receiving window, location and the conditions under which the customer accepts delivery. Then trace backward through receiving capability, transport, compression or processing, feed availability and financial release.
  • Do not equate production capacity with accepted delivery capacity. A compressor may support more output while the receiving station, the fleet cycle or the customer's planned shutdown restricts the sale. Capacity added upstream of a downstream bottleneck may create cost without additional accepted value.
  • What the team reportsWhat it is not yet
    An engineer's expected return-to-service timeA completed functional check
    A customer's forecastAn accepted order
    A proposed credit increaseAn approved limit
  • Give each assumption an owner and an evidence state. These distinctions belong in the decision pack, not in a later dispute.
Walk backwards from the gate the customer opens, not forwards from the plant.
15:00 – 21:00
The daily review, and a warning with no response budget
  • Use a short exception pack: the affected commitment, the constraint, the deadline for useful action, feasible alternatives and the approval needed. Include the no-change case. An option that assumes unavailable funding is shown as conditional, not as the recommended plan. The chair resolves competing priorities and records each acceptance in sequence.
  • The action register follows execution: approval to purchase a part is not receipt; receipt is not fit or installation; installation is not readiness; readiness is not the customer accepting delivery.
  • Worked example (fictional, assumed figures)Amount
    Possible shortfall × assumed contribution: 20,000 standard cubic metres × ₦120₦2.4 million at risk
    Assumed accepted recovery 75%: 20,000 × ₦120 × 75%₦1.8 million protected
    Less additional approved vehicle₦900,000
    Simplified net benefit, before omitted tax, overhead, financing or alternative-use effects₦900,000
  • Engineering and the customer have confirmed the vehicle arrangement is feasible in this base case. It is a decision illustration, not a Nigerian transport quotation or a safety justification.
  • IN THE PHYSICAL SUPPLY · THE WORKED CASE
    • Physical supply. Now the vehicle cannot reach the customer within the accepted window. The warning remains correct, but the recovery is no longer feasible. The ₦1.8 million must not be retained as a benefit simply because the model predicted the threatened volume. A different response might be early customer communication, an agreed rescheduling or a contractual settlement.
    AT THE CUSTOMER PROMISE · THE PARALLEL
    • Customer promise. Now the response is feasible but funding is unavailable. Management must arrange funding, reallocate a resource or accept the commercial consequence within authority. The warning has revealed a management decision; another dashboard will not resolve it.
A correct warning can still carry no value if nobody can act on it.
Key Terms

Exception pack

A short daily review of material exceptions, each with the affected commitment, constraint, deadline, feasible alternatives including no change, and approval needed.

Action register

A record that follows a decision through purchase, receipt, installation, readiness and the customer's accepted delivery, rather than closing at approval.

Self-Check — Before You Submit
1. In the book's worked example, the vehicle cannot reach the customer within the accepted window. What happens to the ₦1.8 million protected contribution?
  • A. It stays in the business case because the warning was correct
  • B. It is halved to reflect uncertainty
  • C. It is no longer a benefit; a different response must be considered
  • D. It becomes the cost of a new dashboard
C. It is no longer a benefit; a different response must be considered — The warning remains correct but the stated recovery is no longer feasible, so the model must not retain the benefit simply because it predicted the threatened volume. Keeping it because the warning was right is the trap.
2. Your allocation model has been quietly configured to maximise gross margin, although management has promised priority service to another customer. What is the right response?
  • A. Restate the objective as a leadership decision in plain language
  • B. Accept it, since margin is the best measure
  • C. Ask the vendor for higher accuracy
  • D. Let each planner choose their own objective
A. Restate the objective as a leadership decision in plain language — The chosen objective is a leadership decision and must be shown in plain language. It should not silently become margin maximisation where a priority promise exists. Accuracy is irrelevant if the objective is wrong.
3. Which item belongs in the daily exception pack?
  • A. A catalogue of every observation
  • B. Only the recommended option
  • C. Options assuming unavailable funding, presented as executable
  • D. The no-change case
D. The no-change case — The pack identifies the commitment, constraint, deadline, feasible alternatives and approval, and includes the no-change case. An option needing unavailable funding is shown as conditional, not as the executable plan.

Today’s Assignment

Define the promise behind your decision backwards from the delivery point, own its assumptions, specify the intelligence design and design the review that follows execution.
  • The promise backwards. For your decision in your company, record the product, quantity, quality basis, receiving window, location and acceptance conditions, then trace back through receiving, transport, compression or processing, feed and financial release.
  • Assumptions owned. List the key assumptions, each with an owner by role and an evidence state.
  • The intelligence design. Keep reconciliation, forecasting and constrained comparison separate, and say honestly which your decision actually needs. Name two deterministic checks and state the objective in plain language.
  • The daily review. Design the exception pack, including its no-change case, and the action register that follows execution to customer acceptance.
  • The measures. Name the measures that would reveal leadership performance, including how rejected recommendations will be classified. Say what your company currently gets wrong in its review.
  • Four hundred to nine hundred words.
YOUR 90-DAY PLAN

Section 2 — The promise defined backwards, its assumptions owned and the review that follows execution.

How this is marked — the rubric
Defines the promise backwards from the delivery point to financial release with the acceptance conditions stated25
Gives each material assumption an owner by role and an evidence state20
Separates reconciliation, forecasting and constrained comparison and justifies which are needed25
Designs an exception pack with a no-change case, an action register to acceptance and leadership measures30
Total · pass mark 70100
Submitting session 2
Write your answer in Word or Google Docs. The first line must read Session: 2, or the submission is refused. Upload the Word file (.docx), or switch to the Google Doc tab and paste your document’s share link.
Marked against the rubric above and returned as a written letter, saved to your progress page. Do not submit until you have passed the self-check above.
Capabilities Covered
Defining the promise backwardsOwning assumptions with evidence statesSeparating the intelligence layersRunning the daily exception reviewTurning a warning into a decision
Tick it once you have submitted.Next: Session 3 →
Chapters 2 and 3 · Leadership and Gas EconomicsSESSION 3
The Gas Value Chains and Their Different Constraints
Session 3 of 15 · 25-Minute Module

Why This Matters

A gas group may process gas, run a pipeline, distribute CNG and sell LPG, each constrained by something different. Money behaves the same way: a signed contract is not a delivery, a delivery is not an accepted bill and a bill is not cash. Today you locate the binding constraint behind your decision, follow the revenue chain through its accepted events, and run your decision through the use-case screen that applies hard gates before anyone ranks opportunities. These disciplines help your company avoid funding the wrong bottleneck or counting the same naira twice.

25-Minute Module
5:00 – 10:00
The binding constraint in each chain
  • A binding constraint is the limit that actually caps the accepted result. The book's Comparative Application Map is an author-developed design guide, not a technical standard.
  • BusinessUseful analytical questionNecessary acceptance check
    ProcessingWhich feed and operating regime threatens accepted product?Engineering envelope and product evidence
    CompressionWhich developing condition warrants a useful response?Equipment review and response feasibility
    PipelineWhich feasible allocation meets approved commitments?Network check and commercial authority
    LNGHow do supply, inventory and transfer windows interact?Cryogenic-system and interface acceptance
    CNGWhich schedule completes deliverable cycles?Loading, route, receiving and return constraints
    LPGWhat stock can be sold, funded and reconciled?Product, container, measurement and release status
    Industrial supplyWhich supply plan protects an accepted customer window?Customer receiving and continuity agreement
  • THE DOCTRINE

    A single platform may support several workflows, but each use still needs its own evidence, acceptance and benefit mechanism. Reusing software is not equivalent to transferring technical validity.

  • The book's fictional CNG business proposes an extra compressor, but trailers spend most of their time at customer receiving points. Compare a receiving-window change, compatible distribution equipment, a better return cycle and the compressor, including under an outage and a customer restart.
  • NMDPRA's Automated Gas Systems portal distinguishes activities such as gas processing, CNG compression and industrial cascade systems, and LPG storage and filling (NMDPRA, Automated Gas Systems, official portal). A portal category is not itself a permission to operate. Keep an activity register linking each facility to its current permissions, conditions and accountable owner.
The correct answer may still be the compressor, but only for the changed system.
16:00 – 21:00
Profit, funding and customer prepayment
  • Worked example (fictional, assumed)Amount
    Revenue: 100,000 standard cubic metres × ₦500₦50 million
    Supply cost: 100,000 × ₦260₦26 million
    Incremental delivery cost: 100,000 × ₦90₦9 million
    Contribution before overhead, tax and financing₦15 million
    Expenditure to fund if paid before collection: ₦26m + ₦9m₦35 million
    Funding ₦35m for 60 days at an assumed 24% simple annual rate, 365-day yearabout ₦1.381 million
  • This is an assumed simple-interest calculation; it does not represent current Nigerian borrowing terms, tax treatment or a continuously replenished portfolio.
  • IN THE PHYSICAL SUPPLY · THE WORKED CASE
    • Physical supply. If only 80,000 units are accepted, revenue falls to ₦40 million; if supply and delivery costs both vary fully with accepted quantity, contribution becomes ₦12 million. If the original supply commitment remains payable, the answer changes. Finance applies the actual contractual cost behaviour.
    AT THE CUSTOMER PROMISE · THE PARALLEL
    • Customer promise. A ₦35 million customer prepayment could cover the simplified cash requirement, but it is not ₦35 million of profit. Its benefit may be reduced financing exposure, lower collection risk or a funded delivery, each needing separate evidence. The board should see contribution, peak funding, expected collection and downside separately.
  • THE DOCTRINE

    A high-margin expansion can still fail for lack of cash. Count the relevant mechanism once.

  • For one disputed invoice, a delivery dispute pack links the signed basis, order, delivery evidence, measurement version, price and receivable. A prepared pack is a process output, not a cash benefit. Preserve an unresolved dispute as unresolved.
Contribution, funding and collection are three numbers, not one.
Key Terms

Activity and permission register

A record linking each facility and activity to its source document, validity or review condition, accountable owner and evidence of compliance.

Hard gate

A screening condition, such as authority, response or constraint, that must be passed before an opportunity is ranked; no benefit score compensates for failing it.

Self-Check — Before You Submit
1. A fictional distributor's trailers spend most of their cycle waiting at customer receiving points. Sales propose a second compressor. What should management do first?
  • A. Approve the compressor on nameplate output
  • B. Compare receiving, equipment, return-cycle and compressor options, including under stress
  • C. Buy a forecasting platform
  • D. Cut the sales campaign
B. Compare receiving, equipment, return-cycle and compressor options, including under stress — The binding constraint is at receiving, so the compressor's value must come from the changed system, not nameplate output. The book does not rule the compressor out; it requires the comparison, including an outage and a customer restart.
2. A customer pays ₦35 million in advance for the book's assumed delivery. How should the board treat it?
  • A. As ₦35 million of additional profit
  • B. As revenue recognised on receipt
  • C. As cash that may reduce financing exposure, evidenced separately
  • D. As proof the customer will accept delivery
C. As cash that may reduce financing exposure, evidenced separately — The prepayment covers the simplified cash requirement but is not additional profit. Its economic benefit, such as lower financing exposure or collection risk, needs separate evidence. Treating it as profit counts the wrong mechanism.
3. A contract assistant retrieves clauses accurately and the sponsor wants it to issue binding instructions to customers. On the use-case screen, the proposal...
  • A. Fails the authority gate and may need redesign
  • B. Passes, because retrieval performance is strong
  • C. Should be ranked highest because benefit is high
  • D. Should wait indefinitely in the pilot queue
A. Fails the authority gate and may need redesign — Appendix D's example is exactly this: strong retrieval can still fail the authority gate. A high benefit does not compensate, and the book warns against leaving infeasible propositions in an indefinite pilot queue.

Today’s Assignment

Locate your decision in your own value chain, name its binding constraint, follow its revenue chain to cash, record the permission it depends on and run it through the use-case screen.
  • The chain and the constraint. Where your decision sits in your company's value chain and its binding constraint. If your business does not run the activity, apply it to the nearest equivalent decision or the counterpart you depend on.
  • The revenue chain. List the accepted events from contracted entitlement to collected cash that this decision touches, and say where the unresolved gap lies.
  • The permission record. The activity and permission record the decision depends on: owner by role, source document and condition. If you do not know, say so.
  • The use-case screen. Answer the eight Appendix D questions; record any hard gate the decision fails, with the outcome: proceed, repair, redesign or stop.
  • The honest part. Where your company currently counts a mechanism twice or funds the wrong bottleneck.
  • Four hundred to nine hundred words.
YOUR 90-DAY PLAN

Section 3 — The binding constraint, the revenue chain's accepted events and the use-case screen.

How this is marked — the rubric
Names the binding constraint with evidence and places the decision correctly in the student's own value chain25
Lists the accepted revenue-chain events and locates the unresolved gap25
Records the activity and permission dependency with owner, source document and condition, or states it is unknown15
Runs all eight screening questions, records any failed hard gate and states a reasoned outcome with an owner35
Total · pass mark 70100
Submitting session 3
Write your answer in Word or Google Docs. The first line must read Session: 3, or the submission is refused. Upload the Word file (.docx), or switch to the Google Doc tab and paste your document’s share link.
Marked against the rubric above and returned as a written letter, saved to your progress page. Do not submit until you have passed the self-check above.
ASSESSMENT NOW OPEN

Pop Quiz 1 — The Promise, the Toolkit and the Value Chains opens now. Sit it before you start the next session — it is how you find out whether the doctrine landed, and the practice papers may be resat as often as you like.

5 questions · 10 minutes · covers Sessions 1–3 · pass mark 70
Sit Pop Quiz 1 →Closed book, no notes, and Coach Ritchie switches himself off while you sit it.
Capabilities Covered
Locating the binding constraintKeeping products and quantities distinctFollowing the revenue chain to cashSeparating profit from fundingApplying hard gates before ranking
Tick it once you have submitted.Next: Session 4 →
Chapter 4 · Processing and SupplySESSION 4
Feed Gas Quality and Processing
Session 4 of 15 · 25-Minute Module

Why This Matters

Throughput is not the same as saleable product. A processing plan can show inlet volume rising while accepted product falls, because the feed has changed, an analyser has drifted or a treatment unit is restricted. A similar trap can arise in any business whose output must meet a quality condition before a customer accepts it. This session shows you how to keep the product record honest, how to match a model to the evidence actually available, and how to separate a model's technical accuracy from the value of the decision it informs. If your company has no processing plant, apply it to the acceptance condition that governs your own decision.

25-Minute Module
5:00 – 10:00
The product and transformation record
  • Record each inlet stream's identity, time basis, quantity and accepted composition or analysis; link it to the process configuration and outlet products. Preserve sampling method, analyser status and laboratory reconciliation. Where composition is estimated, carry that status into every downstream calculation.
  • Build a product-quality register from the accepted specification: each variable, measurement point, unit, source, method, review owner and the response to an uncertain or nonconforming result.
  • THE DOCTRINE

    The engineering team establishes technical requirements and limits. The analytical team represents them; it does not invent a universal acceptable range.

  • Keep production, fuel use, internal transfer, venting, flaring and recovered liquids separately identifiable where they matter to the plant balance. A change in product mix can make a volume-only indicator misleading; the right balance may need mass, molar or energy accounting with engineering acceptance.
An estimate that loses its label becomes a false fact downstream.
15:00 – 21:00
Technical accuracy is not decision value
  • When an estimated quality variable nears the accepted limit, the decision is whether to seek confirmation, adjust the plan or hold product under the approved procedure. Evaluate missed decision-relevant deviations, unnecessary review burden and response time. A broad correlation plot does not answer these questions.
  • Evaluate chronologically across genuine changes, keep one event's overlapping records out of both sides of the test, and include start-up, changed feed and analyser degradation where the use covers them. If evidence is thin, restrict the use explicitly. Record the missing condition when an operator rejects an output; repeated overrides may reveal an omitted valve restriction or a weak operating record.
  • Worked example (fictional, two technically accepted cases)Case ACase B
    Accepted units × contribution per unit80,000 × ₦150 = ₦12m95,000 × ₦120 = ₦11.4m
    Less incremental operating expenditure₦2m₦2.5m
    Net contribution₦10m₦8.9m
    If Case B's margin rises to ₦140₦10m₦13.3m − ₦2.5m = ₦10.8m
  • IN THE PHYSICAL SUPPLY · THE WORKED CASE
    • Physical supply. Higher accepted volume yields less net contribution under these assumptions, but that does not make Case A operationally preferable; commitments, product mix, fixed-cost consequences and engineering conditions still apply. If Case B's feed has not been technically accepted, its result is a conditional scenario, not an executable alternative.
    AT THE CUSTOMER PROMISE · THE PARALLEL
    • Customer promise. At ₦140 the ranking reverses. The review should expose the price or cost assumption that changes the answer, rather than present one recommendation to the commercial owner as permanently correct.
The number that reverses the ranking is the number to defend.
Key Terms

Validated range

The feed and operating conditions across which a model has been tested; outside it the output should be unavailable or flagged for engineering review.

Conditional scenario

A result that depends on something not yet accepted, such as a feed without technical acceptance, and therefore cannot be compared as an executable alternative.

Self-Check — Before You Submit
1. In the book's worked example, what does Case B's net contribution become if its margin rises to ₦140?
  • A. ₦8.9 million
  • B. ₦13.3 million
  • C. ₦10 million
  • D. ₦10.8 million
D. ₦10.8 million — 95,000 × ₦140 = ₦13.3 million, less ₦2.5 million expenditure, gives ₦10.8 million, above Case A's ₦10 million, so the ranking reverses. ₦13.3 million is the tempting answer but ignores the incremental expenditure.
2. A vendor's soft sensor tracks outlet quality well and the sponsor proposes dropping the laboratory acceptance test. What is the right position?
  • A. The estimate cannot replace the required acceptance procedure without the appropriate technical and commercial authority
  • B. Agree, because the correlation is strong
  • C. Agree for low-volume periods only
  • D. Let the analytical team set a new acceptable range
A. The estimate cannot replace the required acceptance procedure without the appropriate technical and commercial authority — A soft sensor's output remains an estimate and does not replace a required measurement or acceptance procedure without authority. Letting the analytical team set a range is also wrong: engineering establishes limits.
3. A new feed arrives that differs materially from anything in the model's test range. What should the advisory do?
  • A. Extend its prediction as normal
  • B. Show the output unavailable or flagged for engineering review
  • C. Average it with the previous day's result
  • D. Raise the confidence threshold
B. Show the output unavailable or flagged for engineering review — This is extrapolation outside the validated range, so the result should be unavailable or flagged for engineering review rather than silently extended. Adjusting a threshold does not make an untested regime valid.

Today’s Assignment

Name the acceptance condition behind your decision, describe the record it depends on, match a model to the evidence, separate technical accuracy from decision value and outline a controlled advisory.
  • The acceptance condition. The condition that determines whether your decision's output is saleable or usable in your company. Without a processing plant, use the product-acceptance or quality condition that governs your decision.
  • The record. The product and transformation (or quality) record it depends on, which values are measured and which estimated, and who owns the limits by role.
  • Matching the model. The baseline you would start from, the validated range, and what happens outside it.
  • Accuracy versus value. Which errors matter near the decision boundary, the review burden your team can absorb and the response time available. Name one assumption that would reverse your preferred option.
  • The controlled advisory. Outline a run beside the existing procedure: scope, records kept and who reviews. Say what your company currently treats as measured that is in fact estimated.
  • Four hundred to nine hundred words.
YOUR 90-DAY PLAN

Section 4 — The acceptance condition, the product record and technical accuracy separated from decision value.

How this is marked — the rubric
Names the acceptance condition and the owner of its limits by role20
Describes the record and distinguishes measured from estimated values20
States a baseline, validated range and behaviour outside it25
Separates technical accuracy from decision value, names a reversing assumption and outlines a side-by-side advisory35
Total · pass mark 70100
Submitting session 4
Write your answer in Word or Google Docs. The first line must read Session: 4, or the submission is refused. Upload the Word file (.docx), or switch to the Google Doc tab and paste your document’s share link.
Marked against the rubric above and returned as a written letter, saved to your progress page. Do not submit until you have passed the self-check above.
Capabilities Covered
Connecting throughput to acceptanceKeeping the product record honestMatching models to evidenceSeparating accuracy from valueRunning a controlled advisory
Tick it once you have submitted.Next: Session 5 →
Chapter 5 · Processing and SupplySESSION 5
Compression and Equipment Reliability
Session 5 of 15 · 25-Minute Module

Why This Matters

Compression may determine whether your business can move gas at the required conditions. The question this session teaches you to ask is not whether a model can predict a failure, but whether its warning arrives early enough for a feasible, funded response that changes an operating consequence. You will learn why a headline accuracy figure can hide a model that finds nothing, how to count warnings honestly, and why avoidability, not downtime, drives the business case. If your company runs no compressors, apply it to the warning on which your own decision depends.

25-Minute Module
5:00 – 10:00
The fault and evidence map
  • For each advisory, name the mechanism to be detected and the observations that could support or contradict it. A temperature or vibration departure is an observation; a diagnosis needs competent interpretation alongside load, operating state, sensor status and other evidence.
  • Separate confirmed faults, suspected conditions, planned maintenance, external supply interruptions and protective trips. A shutdown caused by a downstream restriction is not automatically a compressor failure. A work order closed by an administrative update does not establish repair or return to accepted service.
  • THE DOCTRINE

    Preserve unknown causes as unknown. A model built on an apparently complete set of invented labels is less defensible than one built on a smaller set of dependable events.

  • The reliability owner should help define event labels, linked to equipment, component, observation time, review time, intervention and follow-up evidence.
Ask who labelled the failures before you read the model's score.
16:00 – 21:00
Protection, authority and avoidability
  • THE DOCTRINE

    An analytical advisory is not automatically a protective function. Machine limits and operating procedures come from the accepted technical arrangements, not from a model's confidence score.

  • Engineering establishes the advisory's role, permitted influence, failure response and relationship to existing protection. Another company's reported experience is not a basis for extending operation on this machine, and the economic comparison never cancels a necessary protection requirement.
  • Worked example (assumed)At 50% avoidableAt 20% avoidable
    40 outage hours × 8,000 standard cubic metres per hour × ₦120₦38.4m exposure₦38.4m exposure
    Protected contribution₦19.2m₦7.68m
    Less incremental annual cost (monitoring, review, response, support)₦12m₦12m
    Simplified net value, before tax, financing and other consequences₦7.2mnegative ₦4.32m
  • IN THE PHYSICAL SUPPLY · THE WORKED CASE
    • Physical supply. The response may be specialist review, inspection, planned repair, a delivery revision or more evidence. A nominal 24-hour warning may have limited value where a compatible part or specialist cannot be mobilised in that period. The quantities and avoidability are teaching assumptions, not a compressor record.
    AT THE CUSTOMER PROMISE · THE PARALLEL
    • Customer promise. If a delivery can be recovered later, its contribution may be delayed rather than lost. If another machine covers the commitment, count the incremental system consequence, not the unavailable machine's theoretical output. Require evidence for the response mechanism, not a generic avoided-downtime percentage.
Avoidability, not downtime, is the number that carries the case.
Key Terms

Sensitivity

The share of real fault episodes a model identifies; in the book's assumed case, eight of ten, or 80%.

Avoidability

The share of exposure that the advisory and a feasible response can actually prevent; the book's 50% and 20% cases show how this assumption can change the investment case.

Self-Check — Before You Submit
1. A vendor reports 99% accuracy on a dataset of 990 normal and 10 fault episodes. What should you ask first?
  • A. Whether the accuracy can reach 99.5%
  • B. How many of the 10 faults it identified, and with how many false warnings
  • C. Whether the model is centrifugal-ready
  • D. How many sensor samples were used
B. How many of the 10 faults it identified, and with how many false warnings — Calling every episode normal already gives 99% accuracy while finding no faults. Ask about sensitivity and precision by episode. Counting samples is the inflation trap, not the answer.
2. Using the book's assumptions at 20% avoidability, what is the simplified net value?
  • A. Negative ₦4.32 million
  • B. ₦7.68 million
  • C. ₦7.2 million
  • D. ₦19.2 million
A. Negative ₦4.32 million — 40 × 8,000 × ₦120 × 20% = ₦7.68 million protected, less ₦12 million cost, gives negative ₦4.32 million. ₦7.68 million is protected contribution before cost; ₦7.2 million is the 50% case.
3. A model gives a 24-hour warning of a developing compressor condition, but the compatible part takes longer to mobilise. The sponsor wants to count the full avoided outage. What should you do?
  • A. Count it, because the warning was correct
  • B. Turn the advisory into a protective trip
  • C. Treat the missing response as a management dependency and count only what a feasible response can avoid
  • D. Extend operation, citing another company's experience
C. Treat the missing response as a management dependency and count only what a feasible response can avoid — Value depends on a response feasible within the warning horizon; an unfunded or unmobilisable response reveals a management dependency. An advisory is not automatically a protective function, and another company's experience is no basis for extending operation.

Today’s Assignment

Draw the fault and evidence map for the warning your decision depends on, define its episodes and horizon, name the response and its funding, state the avoidability evidence and outline a one-machine, one-response-chain pilot.
  • The map. The condition or fault mechanism in your company that your decision depends on, the observations that would support or contradict it, and how confirmed faults, suspected conditions, planned work, external interruptions and trips are separated. Without compression, use the equivalent warning in your business.
  • Episodes and horizon. What counts as one episode and the useful warning horizon.
  • The response. The response that must be feasible within that horizon, who funds it and who authorises it by role.
  • Avoidability. The evidence you would require before counting value, and whether lost delivery is truly lost or only delayed or covered.
  • The pilot. One machine (or equivalent) and one response chain: owner, regimes, records kept including rejected recommendations. Say honestly where your company's response chain is unfunded today.
  • Four hundred to nine hundred words.
YOUR 90-DAY PLAN

Section 5 — The warning, its episodes and horizon, and the response it must precede.

How this is marked — the rubric
Draws a fault and evidence map that separates observation from diagnosis and keeps unknown causes unknown25
Defines an episode and a useful warning horizon20
Names a response feasible within the horizon with funding and authority by role25
States avoidability evidence and outlines a one-machine, one-response-chain pilot with a named owner30
Total · pass mark 70100
Submitting session 5
Write your answer in Word or Google Docs. The first line must read Session: 5, or the submission is refused. Upload the Word file (.docx), or switch to the Google Doc tab and paste your document’s share link.
Marked against the rubric above and returned as a written letter, saved to your progress page. Do not submit until you have passed the self-check above.
ASSESSMENT NOW OPEN

Practice Exam 1 — Leadership, Gas Economics and Processing opens now. Sit it before you start the next session — it is how you find out whether the doctrine landed, and the practice papers may be resat as often as you like.

15 questions · 25 minutes · covers Sessions 1–5 · pass mark 70
Sit Practice Exam 1 →Closed book, no notes, and Coach Ritchie switches himself off while you sit it.
Capabilities Covered
Mapping faults to evidenceCounting episodes, not samplesReading sensitivity and precisionTesting avoidabilityKeeping protection with engineering
Tick it once you have submitted.Next: Session 6 →
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