Petroleum engineering demands deep technical expertise across reservoir analysis, drilling operations, production optimization, and regulatory compliance — often under tight deadlines and high-stakes conditions. ChatGPT can serve as a knowledgeable technical collaborator, helping you interpret data faster, draft engineering reports with precision, prepare for complex regulatory submissions, and think through well design challenges more systematically. Whether you're a reservoir engineer running decline curve analysis or a drilling engineer troubleshooting a stuck pipe scenario, these prompts are designed to accelerate your workflows and sharpen your technical thinking.
Reservoir Analysis and Characterization
Prompt 1: Decline Curve Analysis Interpretation
I have production data for an oil well showing the following monthly rates (bbl/month): [paste data]. The well has been on production for [X] months. Help me perform a decline curve analysis using Arps' equation. Identify whether the decline appears exponential, hyperbolic, or harmonic, estimate the decline rate constant (D), and project the EUR (estimated ultimate recovery). Show your reasoning step by step.
This prompt guides ChatGPT to walk through the mathematical framework of DCA alongside you, making it useful for cross-checking your own calculations or training junior engineers.
Prompt 2: Reservoir Drive Mechanism Diagnosis
A reservoir has the following production history: initial reservoir pressure [X] psi, current pressure [Y] psi, GOR trend [describe trend], water cut trend [describe trend], and cumulative production of [X] MSTB oil. Based on this information, help me identify the likely reservoir drive mechanism(s) at work — solution gas drive, gas cap drive, water drive, or compaction drive — and explain the diagnostic indicators supporting your conclusion.
Understanding the drive mechanism early guides field development decisions, and this prompt helps you build a structured diagnostic argument you can present to stakeholders.
Prompt 3: Material Balance Equation Setup
I need to apply the material balance equation (Havlena-Odeh method) to an undersaturated oil reservoir. The reservoir has the following PVT and production data: [paste data]. Walk me through setting up the F vs. Eo plot, explain what the slope and intercept represent physically, and flag any data quality issues I should watch for before trusting the results.
The material balance equation is a cornerstone of reservoir engineering, and this prompt structures the analysis so you can validate results or onboard new team members.
Prompt 4: Pressure Transient Analysis Summary
I ran a buildup test on a vertical well with the following parameters: wellbore radius [X] ft, formation thickness [Y] ft, porosity [Z%], fluid viscosity [X] cp, and total compressibility [X] 1/psi. The Horner plot shows a straight-line slope of [X] psi/cycle. Help me calculate permeability, skin factor, and comment on what a positive vs. negative skin value would mean for this well's completion quality.
This prompt turns pressure transient data into interpretable reservoir quality insights, helping you quickly communicate well condition findings to your team.
Prompt 5: Volumetric OOIP Estimation
Help me calculate the original oil in place (OOIP) using the volumetric method for a reservoir with the following parameters: area [X] acres, net pay thickness [Y] ft, porosity [Z%], water saturation [W%], oil formation volume factor [Bo] RB/STB. Then help me estimate recoverable reserves assuming a recovery factor range of 25–45% and explain what geological or operational factors would push the recovery factor toward the higher or lower end of that range.
This is a foundational calculation that appears repeatedly in reserves certification, field development planning, and asset valuations, making it a high-value prompt to have ready.
Drilling Operations and Well Design
Prompt 6: Well Trajectory Planning
I am planning a directional well with a kickoff point at [X] ft TVD, a target at [Y] ft TVD and [Z] ft horizontal displacement, using a build rate of [R] degrees per 100 ft. Help me calculate the build section length, end-of-build inclination, and tangent section length needed to reach the target. Also flag any dog-leg severity concerns I should evaluate for casing wear and drill string fatigue.
Trajectory planning errors are costly to correct downhole, and this prompt gives you a fast sanity check before committing the plan to a wellbore design document.
Prompt 7: Mud Weight Window Analysis
For a well section between [X] ft and [Y] ft TVD, I have the following formation pressure gradient [X] ppg and fracture gradient [Y] ppg. Help me define the mud weight window, calculate the safe operating range in ppg and psi, and explain the consequences of drilling with mud weight too close to either boundary — including wellbore stability and lost circulation risks.
Clearly understanding the mud weight window is critical for preventing blowouts, lost circulation, and wellbore collapse, and articulating these risks is essential for well control documentation.
Prompt 8: Casing Design Criteria
I need to select surface, intermediate, and production casing strings for a well with the following planned depths and formation pressures: [describe well profile]. Help me define the design loads for each casing string (burst, collapse, tension), explain the relevant safety factors I should apply per API standards, and flag any scenarios where a liner rather than a full string would be a better engineering choice.
This prompt accelerates the casing design process by framing the key load cases and code requirements in plain language before you build the detailed design in specialized software.
Prompt 9: Stuck Pipe Diagnosis and Freeing Procedure
During drilling operations at [X] ft, the drill string became stuck with the following observations: [describe symptoms — differential sticking, mechanical sticking, overpull required, etc.]. Help me diagnose the most likely stuck pipe mechanism based on these symptoms, then outline a step-by-step freeing procedure including recommended treatments (e.g., spotting fluid, jarring program, back-off procedure) and the decision criteria for when to consider a fishing operation.
Stuck pipe is one of the most expensive drilling problems, and having a structured diagnostic checklist ready helps your team act quickly and methodically under pressure.
Prompt 10: Cement Job Design Parameters
I need to design a primary cement job for a production casing string set at [X] ft TVD in a formation with temperature [Y] °F and a fracture gradient of [Z] ppg. Help me determine the slurry volume required to achieve 500 ft of cement above the casing shoe, specify a suitable cement class and additive package for the temperature and pressure conditions, and explain how I should design the pre-flush and spacer program to ensure good mud removal.
A poorly designed cement job leads to sustained casing pressure and zonal isolation failures, making this a critical engineering decision that benefits from systematic thinking before execution.
Production Optimization
Prompt 11: Nodal Analysis for Artificial Lift Selection
I have a well with a current flowing bottomhole pressure of [X] psi at a production rate of [Y] BOPD. The reservoir pressure is [Z] psi. The wellbore is [depth] ft deep with [X]-inch tubing. Help me explain how to construct an inflow performance relationship (IPR) curve using Vogel's equation for this well, overlay a tubing intake curve, and determine whether the well is a candidate for artificial lift — and if so, whether ESP, gas lift, or rod pump would be the most appropriate option given these conditions.
Nodel analysis is a powerful production optimization tool, and this prompt helps you frame the selection logic in a way that is defensible to both technical reviewers and non-technical management.
Prompt 12: Water Cut Management Strategy
An oil production well has seen its water cut rise from 15% to 68% over the last 18 months. Current oil rate is [X] BOPD and water rate is [Y] BWPD. Help me identify the most likely causes of accelerated water breakthrough in this type of reservoir (consider channeling, coning, or loss of zonal isolation), suggest diagnostic steps to differentiate between these mechanisms, and outline a water shut-off strategy including both mechanical and chemical remediation options.
Rising water cut is one of the most common production challenges, and this prompt structures a diagnostic and remediation workflow that can be adapted across a portfolio of wells.
Prompt 13: Gas Lift Optimization
I manage a gas lift system with [X] wells. Current gas injection rates and production data are as follows: [paste well data]. Help me explain the principles of gas lift optimization — specifically how to construct a gas lift performance curve for each well and allocate injection gas across the field to maximize total liquid production given a total gas injection constraint of [Y] MMscfd.
Gas allocation optimization can unlock significant production gains without additional capital, and this prompt provides the conceptual framework needed to approach the problem systematically.
Prompt 14: Production Chemistry Problem-Solving
We are experiencing scale deposition in our production tubing, with analysis indicating the scale is primarily barium sulfate (BaSO4). Current downhole temperature is [X] °F and produced water has the following ion concentrations: [paste data]. Help me explain the geochemistry behind barium sulfate scale formation, calculate a saturation ratio to assess scaling tendency, and recommend a scale management strategy including both inhibitor squeeze treatments and mechanical removal options.
Scale deposition can choke production and damage downhole equipment, and understanding the chemistry behind a specific scale type allows you to choose the most cost-effective mitigation approach.
Prompt 15: Well Performance Surveillance Plan
I manage a field with [X] producing wells and need to build a production surveillance plan. Help me design a tiered monitoring program that categorizes wells by risk level (high, medium, low), defines the key performance indicators (KPIs) to track for each tier (e.g., GOR, water cut, bottomhole pressure, surface casing pressure), specifies recommended surveillance frequencies, and triggers for initiating a well intervention review.
A structured surveillance plan ensures resources are focused on wells with the greatest impact potential and helps prevent small problems from becoming costly workovers.
Technical Reporting and Data Communication
Prompt 16: Executive Summary for a Reservoir Study
I have completed a full-field reservoir study with the following key findings: [summarize technical findings — OOIP, recovery factor estimates, development plan recommendations, economic highlights]. Help me write a one-page executive summary for non-technical leadership. The summary should convey the key value proposition, the confidence level in the reserves estimate, the recommended development scenario, and the main risks — without using jargon or requiring the reader to understand reservoir engineering concepts.
Translating complex technical findings into clear, actionable executive summaries is a high-value skill that advances careers and accelerates decision-making.
Prompt 17: Well Completion Report Structure
I need to write a post-completion report for a horizontal well recently drilled and completed in a tight gas formation. The well reached total depth of [X] ft, was completed with [Y] hydraulic fracture stages, and achieved an initial production rate of [Z] Mcfd. Help me outline a comprehensive well completion report structure, including all sections that should be covered (geology, drilling performance, completion design, stimulation results, initial production data, lessons learned), and provide guidance on what data and narrative belong in each section.
Well completion reports are institutional knowledge assets, and a well-structured report ensures future engineers can learn from each well drilled.
Prompt 18: Reserves Certification Narrative
I am preparing the narrative section of a reserves report for an asset with the following classification breakdown: [X] MMBOE proved developed producing, [Y] MMBOE proved undeveloped, [Z] MMBOE probable. Help me draft a technically rigorous narrative that explains the basis of classification for each category under SEC/SPE-PRMS definitions, describes the key uncertainties, and explains what technical work was done to support the estimates.
Reserves narratives must be both technically accurate and compliant with reporting standards, and this prompt helps you structure language that satisfies both auditors and regulators.
Prompt 19: Technical Presentation for Peer Review
I am presenting a well re-stimulation proposal for an underperforming hydraulically fractured well to a technical peer review committee. The well currently produces [X] BOPD versus an expected [Y] BOPD. I believe the underperformance is due to [technical hypothesis]. Help me structure a 15-minute technical presentation including: problem statement, diagnostic analysis, technical justification for re-stimulation, expected production uplift with uncertainty range, cost-benefit analysis, and risk mitigation plan.
Peer review presentations are gatekeeping moments for capital allocation, and a clearly structured argument dramatically improves the chances of approval.
Prompt 20: Field Development Plan Section Drafting
I am writing the subsurface section of a Field Development Plan (FDP) for a new deepwater oil discovery with estimated OOIP of [X] MMBOE. Help me draft the subsurface description section covering: geological setting and reservoir characterization, fluid properties, drive mechanism, development concept rationale (number of wells, wellbore placement strategy), production forecasting methodology, and key subsurface risks with mitigations.
The FDP is the defining document for a development asset, and a compelling subsurface section demonstrates that engineering rigor underpins the investment case.
HSE and Regulatory Compliance
Prompt 21: Well Control Procedure Documentation
I need to document a well control contingency procedure for a high-pressure gas exploration well planned in [formation/region]. The well has a maximum anticipated surface pressure of [X] psi and is equipped with a [Y]-inch BOP stack rated to [Z] psi. Help me draft the kick detection, shut-in, and well kill procedure (driller's method and wait-and-weight method), including decision trees for each stage and communication protocols between the rig floor, company man, and drilling superintendent.
Clear, pre-documented well control procedures save lives by ensuring the crew does not have to improvise during a kick event.
Prompt 22: Environmental Impact Assessment Input
I need to prepare the petroleum engineering inputs for an Environmental Impact Assessment (EIA) for a proposed offshore development with [X] production wells and [Y] injection wells. Help me identify all the relevant engineering activities and associated potential environmental impacts (drilling fluid disposal, produced water handling, flaring and venting, pipeline leaks, emergency scenarios), and draft language for the mitigation measures section explaining how engineering design choices minimize each impact.
Petroleum engineers play a direct role in designing low-impact operations, and articulating those design choices clearly in an EIA protects both the project and the company's license to operate.
Prompt 23: Process Safety Management Documentation
I am conducting a Process Hazard Analysis (PHA) for our production facility's high-pressure separator train. The separator operates at [X] psig with associated hydrocarbon vapor. Help me structure a What-If analysis session covering: potential causes of overpressure, loss-of-containment scenarios, instrumentation failure modes, human error scenarios, and consequence descriptions. Also help me draft the associated safeguard documentation and recommendations format consistent with OSHA PSM and API RP 14C requirements.
Systematic PHA documentation is required by regulation and is essential for demonstrating that all credible hazard scenarios have been evaluated and controlled.
Prompt 24: Regulatory Submission Cover Letter
I need to submit a drilling permit application to [regulatory authority] for an onshore appraisal well. The application package includes: well location survey, geological prognosis, well design summary, waste management plan, and emergency response plan. Help me draft a professional cover letter that introduces the project, summarizes the key technical points relevant to the regulator's review criteria, demonstrates that all required documentation has been included, and invites the regulator to contact us with any questions.
A well-crafted regulatory cover letter signals organizational competence and can reduce the number of clarification requests, accelerating permit approval timelines.
Prompt 25: Incident Investigation Report
We experienced a near-miss event on our drilling rig where a drill pipe connection was backed off unintentionally while the pipe was under tension, resulting in a dropped object hazard. Help me structure an incident investigation report following the bow-tie methodology, covering: incident timeline, immediate causes, contributing factors, root causes, and corrective actions. Also help me draft the lessons-learned communication for distribution across other rigs in our fleet.
Thorough incident investigation reports transform near-miss events into systemic safety improvements and demonstrate a genuine safety culture to regulators and auditors.
Project Management and Economics
Prompt 26: AFE Cost Estimate Review
I am reviewing an Authorization for Expenditure (AFE) for a well workover with an estimated total cost of $[X]. The AFE includes the following line items: [paste cost breakdown]. Help me identify the cost categories that typically have the highest variance versus actual in workover operations, suggest where contingency should be allocated, flag any line items that appear to be missing or underestimated based on industry norms, and help me draft a cost risk narrative for the approval memo.
AFE accuracy directly affects project profitability, and a systematic review helps you identify cost risks before they become budget overruns.
Prompt 27: Economic Sensitivity Analysis
I am evaluating an infill drilling program with the following base case economics: total capital cost $[X]MM, EUR [Y] MMBOE, production profile [describe or paste], operating cost $[Z]/BOE, royalty rate [R%], assumed oil price $[P]/bbl. Help me set up a sensitivity analysis that shows how NPV10 changes across variations in: oil price ($40–$100/bbl), EUR (±30%), capital cost (±20%), and operating cost (±15%). Also help me identify which input is the most significant value driver using a tornado chart approach.
Sensitivity analysis is essential for communicating project risk to management and distinguishing value drivers from secondary variables.
Prompt 28: Project Schedule Risk Assessment
I am managing a two-well drilling program with a planned spud date of [date] and a target completion date of [date]. Key project milestones include: [list milestones]. Help me identify the most common causes of schedule slippage in drilling projects, assess which of my milestones carry the highest schedule risk, and draft a risk register with probability and impact ratings, mitigation actions, and contingency time allowances for each risk.
Schedule risk management in drilling projects prevents cost escalation from rig standby time and helps you maintain credibility with partners and investors.
Prompt 29: Vendor Contract Technical Scope Review
I am reviewing a proposed contract for drilling fluid services for an upcoming well. The scope of work includes: [summarize scope]. Help me identify the key technical performance requirements that should be explicitly defined in the contract (e.g., fluid properties at specific conditions, response time for technical support, disposal compliance), the most common ambiguities in drilling fluid service contracts that lead to disputes, and suggest contract language improvements to protect the operator's interests.
Precise technical scoping in contracts reduces the potential for cost disputes and ensures service providers deliver the quality of support your operations require.
Prompt 30: Post-Drill Well Performance Review
I have just completed drilling and initial production testing of a development well. Planned versus actual performance is as follows: [paste planned vs. actual data for depth, formation tops, log results, completion parameters, IP rate]. Help me write a post-drill performance review that identifies where the well met, exceeded, or underperformed pre-drill expectations, analyzes the root causes of any variances, updates the geological model implications, and extracts lessons learned for future well planning in this field.
Post-drill reviews close the learning loop between planning and execution, and the insights they generate compound across a multi-well development program.
Professional Development and Knowledge Building
Prompt 31: Technical Concept Explanation for Junior Engineers
I need to explain the concept of relative permeability to a group of junior petroleum engineers who understand Darcy's law but have not studied multiphase flow. Help me build a teaching explanation that: starts with an analogy, introduces the key concepts (wetting phase, non-wetting phase, irreducible saturation, residual oil saturation), explains what a relative permeability curve looks like and how to read it, and describes how rock wettability affects the curve shape. Include two or three example questions I can ask the group to check their understanding.
Building the next generation of petroleum engineers is a professional responsibility, and clear conceptual explanations accelerate knowledge transfer far more effectively than equations alone.
Prompt 32: Technical Interview Preparation
I am preparing for a senior reservoir engineer interview at a major oil company. The role involves leading field development planning for a deepwater asset. Help me prepare for technical interview questions by generating 10 challenging reservoir engineering questions likely to be asked (covering topics like material balance, well performance, reserves estimation, and development strategy), providing model answers that demonstrate both technical depth and the ability to communicate uncertainty, and suggesting how to structure answers using the STAR method where appropriate.
Thorough technical interview preparation demonstrates both competence and self-awareness, helping you stand out in a competitive field.
Prompt 33: SPE Paper Abstract and Structure
I have conducted a field study on the application of chemical EOR (polymer flooding) in a mature sandstone reservoir with the following results: [summarize key findings and data]. Help me write a structured abstract for an SPE conference paper submission (250 words maximum) that clearly states the objective, methodology, key results, and significance of the work. Then provide a recommended paper outline with section headings and a one-sentence description of what each section should contain.
Publishing in SPE conferences builds your professional reputation, expands your network, and contributes to the collective technical knowledge of the industry.
Prompt 34: Skills Gap Analysis for Career Advancement
I am a reservoir engineer with [X] years of experience, currently specializing in conventional sandstone reservoirs. My career goal is to move into a technical leadership role with exposure to unconventional resources (shale/tight oil) and deepwater development. Help me identify the key technical and leadership competencies required for that career path, assess the likely gaps based on my current background, and suggest a structured 12-month development plan including: recommended SPE/IPTC training courses, technical reading, stretch assignments, and mentorship strategies.
Career development planning is most effective when it is specific and structured, and this prompt transforms a vague aspiration into an actionable roadmap.
Prompt 35: Mentoring Conversation Preparation
I am mentoring a junior petroleum engineer who is struggling with confidence in presenting technical results to senior management. They have strong technical skills but tend to over-explain details and lose the audience. Help me prepare a mentoring conversation plan that: opens with active listening questions to understand their perspective, introduces frameworks for structuring technical presentations for executive audiences (e.g., Pyramid Principle, BLUF — Bottom Line Up Front), provides specific feedback techniques, and ends with a concrete practice exercise we can do together.
Effective technical communication is often the difference between good engineers and great technical leaders, and mentoring conversations that address it directly accelerate career growth for the people you support.
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