Predictika · Perforating gun jobs

An AI sales agent's perforating gun job, checked before it goes out

An AI sales agent prepares a perforating gun job from the published Owen Oil Tools catalog: the gun type and diameter, shots per foot, phasing, charge and wellbore condition, the casing it must clear, the penetration the customer needs, the make-up torque and the total shots it states. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the published tables and returns a verdict, every reason and the figures it computed.

Scope: Owen Oil Tools threaded, bolted/threaded and slick perforating guns from 1.687 to 7.0 in. with the charges listed for them: published gun configurations, swelled diameter against casing drift, published test penetration and entrance hole, threaded-gun make-up torque, shot totals. See everything this validator covers

This validator models one perforating gun job at a time, based on public Owen Oil Tools catalog data, and handles any job that uses these guns and charges, not just the scenarios shown below.

  • Published gun configurations — the combinations in the Owen gun swell table (51 of them): gun type, outside diameter, shots per foot, phasing (60, 90, 135/45 or 140/20 degrees), charge part number and air or fluid condition. A combination that is not in the table is blocked.
  • Casing clearance — the published largest swelled diameter of the fired gun must be smaller than the casing drift diameter the customer gives.
  • Test penetration and entrance hole — for the 22 configurations where the Owen charge performance table lists the same charge in the same gun diameter and phasing, a penetration or entrance hole requirement above the published API test figure is blocked; where no such figure is published, a requirement goes to a person.
  • Make-up torque and shots — threaded guns must be made up between the recommended minimum and maximum torque for their diameter from the Threaded Gun Systems manual; the total shots the quote states must equal shots per foot times the interval.

Any Owen perforating gun job that touches these rules is in scope — not only the scenarios pictured here. Not covered: prices (none are published, so this page shows no price build-up), the other Core Laboratories services, through-tubing and TCP firing heads, subs and setting tools, and gun lengths, detonators and loading procedures. Assumptions: clearing the casing drift by the published swelled diameter is generic geometry, and the published test figures are laboratory results, not downhole predictions.

The AI sales agentBuilds the gun job from the conversation and says it is ready.
Predictika validatorChecks every rule at once and returns the verdict, each finding, and the computed figures.

7 scenarios in 3 groups · each group runs from the agent’s first attempt to the outcome · click one to switch

What the agent proposes

The AI sales agent says

Illustrative agent statement. The validator receives the structured request below.

Proposing agent: AI sales agent (scripted)

Before sending, the agent must call Recorded run

Predictika validator


      
Waiting for the call.

Where rules-based CPQ gets it wrong

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Our assessment of what a typical rules-based CPQ (product rules, price rules and validation rules, as in Salesforce CPQ) does with the same cases. It is a judgment about effort and reliability, not a claim that nothing can be built.

What the validator caughtTypical rules-based CPQPredictika
Gun configurations that exist only as published combinations (type, diameter, shots per foot, phasing, charge, wellbore condition)Only with workarounds
A lookup table or one rule per combination, kept in step with the catalog; a combination that is not listed is caught only if every option is a dependent choice list.
The six choices arrive in one request and are matched against the published table on every call.
Swelled gun diameter against the casingOnly with care
The swelled diameter belongs to the whole combination, so a rule has to look it up first and then compare it with a casing field on another line.
The swelled diameter is looked up from the combination and compared with the casing drift on every call.
Test penetration and entrance hole that exist for only some combinationsOnly with workarounds
The published figures depend on charge, gun diameter and phasing together; where there is none, a requirement should go to a person rather than pass silently.
A requirement is checked against the published figure when there is one and goes to a person when there is not.
Make-up torque limits that depend on diameter and gun typeOnly with care
A table by diameter that applies to threaded guns only; easy to leave a gap for other gun types.
Torque is compared with the minimum and maximum for the diameter, and goes to a person where none is published.
Shots the quote statesOnly with care
The total has to be recomputed from shots per foot and the interval and compared.
The stated total is a field in the request, compared with the computed one on every call.
Every problem returned in one answerOnly with workarounds
Rules tend to fire as the quote is saved or a step is completed, so a person often fixes one error and meets the next.
All findings come back together, whatever order the choices arrived in.

What this validator catches: findings from its test cases

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Every rule is checked on every call, in any order the choices arrive; one problem never hides another. Blocking findings stop the quote; approval findings need a person to sign off; everything else is computed.

1Owen publishes no gun swell data for a 3.125 in. gun with 5 shots per foot in this combination of gun type, phasing, charge and wellbore condition; the quote must use a published combination.
2Owen publishes no gun swell data for a 3.125 in. gun with 6 shots per foot in this combination of gun type, phasing, charge and wellbore condition; the quote must use a published combination.
3The published largest swelled diameter for this gun is 3.34 in., which does not clear a casing drift of 3.3 in.
4The published largest swelled diameter for this gun is 3.34 in., which does not clear a casing drift of 3.34 in.
5The quote has 0 shots per foot over 24 feet; both must be at least 1.
6Owen publishes no gun swell data for a 3.125 in. gun with 0 shots per foot in this combination of gun type, phasing, charge and wellbore condition; the quote must use a published combination.
7The quote has 6 shots per foot over 0 feet; both must be at least 1.
8The quote states 150 shots; 6 shots per foot over 24 feet gives 144 shots.
9The quote needs 50.0 in. of penetration; the published test penetration for this charge in this gun is 44.4 in.
10The quote needs an entrance hole of 0.45 in.; the published test entrance hole for this charge in this gun is 0.39 in.
11Owen publishes no test penetration or entrance hole for this charge in this gun diameter and phasing, so a person should confirm the penetration and hole size requirement.
12The make-up torque of 500 ft-lbf is below the recommended minimum of 600 ft-lbf for this threaded gun.
13The make-up torque of 1,700 ft-lbf is above the recommended maximum of 1,650 ft-lbf for this threaded gun.
14The threaded gun manual lists no make-up torque for this gun type and diameter; a person should confirm the torque of 1,000 ft-lbf.
15The published largest swelled diameter for this gun is 3.55 in., which does not clear a casing drift of 3.5 in.
16The published largest swelled diameter for this gun is 7.356 in., which does not clear a casing drift of 7.3 in.
17The make-up torque of 4,500 ft-lbf is above the recommended maximum of 4,000 ft-lbf for this threaded gun.
18The published largest swelled diameter for this gun is 4.81 in., which does not clear a casing drift of 4.6 in.
19The quote states 130 shots; 5 shots per foot over 24 feet gives 120 shots.
20The make-up torque of 2,000 ft-lbf is above the recommended maximum of 1,650 ft-lbf for this threaded gun.
21The quote needs 9.0 in. of penetration; the published test penetration for this charge in this gun is 7.5 in.

Scenarios and results

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The recorded result of the validator for each scenario on this page: the request the AI agent sent, the verdict, and every finding, in the order they appear above.

1. Dry well, 3.125 in. threaded gun: Dry-well gun job at 6 shots per foot with a high make-up torque

The agent's request. Please quote a 3.125 in. threaded perforating gun loaded with SDP-3121-410 charges at 6 shots per foot and 60 degree phasing over a 30-foot interval, 180 shots in all, for a dry (air-filled) well with a casing drift of 3.875 in. The make-up torque is 2,000 ft-lbf. The job needs at least 40 in. of test penetration and an entrance hole of at least 0.35 in. It is ready to send.

Verdict: Blocked.

  • Gun configuration not in the published table. Owen publishes no gun swell data for a 3.125 in. gun with 6 shots per foot in this combination of gun type, phasing, charge and wellbore condition; the quote must use a published combination.
  • Make-up torque above the recommended maximum. The make-up torque of 2,000 ft-lbf is above the recommended maximum of 1,650 ft-lbf for this threaded gun.

2. Dry well, 3.125 in. threaded gun: The agent resubmits after fixing the errors

The agent's request. Please quote a 3.125 in. threaded perforating gun loaded with SDP-3121-410 charges at 4 shots per foot and 60 degree phasing over a 30-foot interval, 120 shots in all, for a dry (air-filled) well with a casing drift of 3.875 in. The make-up torque is 1,500 ft-lbf. The job needs at least 40 in. of test penetration and an entrance hole of at least 0.35 in. It is ready to send.

Verdict: Allowed.

  • Job summary. 120 shots in the interval, 2,520 g of explosive in the charges, largest swelled gun diameter 3.35 in.

3. Tight casing, 4.5 in. gun: Large-bore gun job in a 4.6 in. drift casing

The agent's request. Please quote a 4.5 in. threaded perforating gun loaded with SDP-4500-411NT3 charges at 5 shots per foot and 60 degree phasing over a 30-foot interval, 160 shots in all, for a fluid-filled well with a casing drift of 4.6 in. The make-up torque is 4,500 ft-lbf. The job needs at least 49 in. of test penetration and an entrance hole of at least 0.4 in. It is ready to send.

Verdict: Blocked.

  • Gun swells past the casing drift. The published largest swelled diameter for this gun is 4.81 in., which does not clear a casing drift of 4.6 in.
  • Stated total shots do not match. The quote states 160 shots; 5 shots per foot over 30 feet gives 150 shots.

4. Tight casing, 4.5 in. gun: The agent resubmits after fixing the errors

The agent's request. Please quote a 4 in. threaded perforating gun loaded with SDP-4500-411NT3 charges at 5 shots per foot and 60 degree phasing over a 30-foot interval, 150 shots in all, for a fluid-filled well with a casing drift of 4.6 in. The make-up torque is 4,500 ft-lbf. The job needs at least 49 in. of test penetration and an entrance hole of at least 0.4 in. It is ready to send.

Verdict: Blocked.

  • Make-up torque above the recommended maximum. The make-up torque of 4,500 ft-lbf is above the recommended maximum of 4,000 ft-lbf for this threaded gun.

5. Tight casing, 4.5 in. gun: The agent resubmits after fixing the errors

The agent's request. Please quote a 4 in. threaded perforating gun loaded with SDP-4500-411NT3 charges at 5 shots per foot and 60 degree phasing over a 30-foot interval, 150 shots in all, for a fluid-filled well with a casing drift of 4.6 in. The make-up torque is 3,500 ft-lbf. The job needs at least 49 in. of test penetration and an entrance hole of at least 0.4 in. It is ready to send.

Verdict: Allowed.

  • Job summary. 150 shots in the interval, 5,850 g of explosive in the charges, largest swelled gun diameter 4.39 in.

6. PerFRAC charge: PerFRAC job at 4 shots per foot and 90 degrees

The agent's request. Please quote a 3.125 in. threaded perforating gun loaded with PFC-3121-342 charges at 4 shots per foot and 90 degree phasing over a 20-foot interval, 80 shots in all, for a fluid-filled well with a casing drift of 3.875 in. The make-up torque is 1,500 ft-lbf. The job needs at least 7 in. of test penetration and an entrance hole of at least 0.4 in. It is ready to send.

Verdict: Needs approval.

  • No published test figure for this charge in this gun. Owen publishes no test penetration or entrance hole for this charge in this gun diameter and phasing, so a person should confirm the penetration and hole size requirement.
  • Job summary. 80 shots in the interval, 1,720 g of explosive in the charges, largest swelled gun diameter 3.29 in.

7. PerFRAC charge: The agent resubmits after fixing the errors

The agent's request. Please quote a 3.125 in. threaded perforating gun loaded with PFC-3121-342 charges at 6 shots per foot and 60 degree phasing over a 20-foot interval, 120 shots in all, for a fluid-filled well with a casing drift of 3.875 in. The make-up torque is 1,500 ft-lbf. The job needs at least 7 in. of test penetration and an entrance hole of at least 0.4 in. It is ready to send.

Verdict: Allowed.

  • Job summary. 120 shots in the interval, 2,580 g of explosive in the charges, largest swelled gun diameter 3.32 in.

Narration transcript

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The text of the narrated walkthrough, step by step.

  1. Welcome to a demo of Predictika's Validator. An AI sales agent prepares a perforating gun job from the published Owen Oil Tools catalog: the gun type and diameter, shots per foot, phasing, and more. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the published tables and returns a verdict, every reason and the figures it computed.
  2. I will start with the first request by the agent.
  3. The agent says. Please quote a 4.5 in. threaded perforating gun loaded. The make-up torque is 4,500 ft-lbf. The rest of the request is on screen.
  4. Before it goes out, the agent calls the validator.
  5. Blocked, with two findings, all in one answer. The published largest swelled diameter for this gun is 4.81 in., which does not clear a casing drift of 4.6 in. The quote states 160 shots; 5 shots per foot over 30 feet gives 150 shots.
  6. The validator returned two blocking findings in one answer. A check that reads one field at a time would pass most of this; it shows only when the choices in the quote are checked against each other and against the stated total.
  7. What this shows: for gun configurations that exist only as published combinations (type, diameter, shots per foot, phasing, charge, wellbore condition), a rules-based CPQ can do this only with workarounds.
  8. Now the agent resubmits.
  9. The corrected request. It changes the gun outside diameter to 4 in and the stated shots as to 150.
  10. It calls the validator again.
  11. Still blocked, with one finding, all in one answer. The make-up torque of 4,500 ft-lbf is above the recommended maximum of 4,000 ft-lbf for this threaded gun.
  12. Two findings cleared, but the change brings a different blocking finding: make-up torque above the recommended maximum.
  13. The agent resubmits once more.
  14. The revised request. It changes the make-up torque to 3,500.
  15. It calls the validator once more.
  16. This time the validator clears it.
  17. The earlier finding is cleared, and the validator's figure matches the quote.
  18. Two problems caught in one call, fixed in two passes, and a clean quote. That is the value of Predictika's validator: catching mistakes before they reach the customer. Now you can try the other scenarios yourself.