pnge-well-engineering

Assist with hydraulic fracture completions design for a target formation — stage spacing, fluid selection, proppant, diagnostics, and chemistry context — using FracFocus disclosures, formation data, and engineering calculations. Trigger: /completions-design Marcellus horizontal Monongalia County WV

API and ISO well construction standards expert for petroleum engineering. Provides guidance on API casing and tubing ratings, cementing design per API standards, wellbore integrity requirements, pressure testing standards, and state and federal regulatory requirements for well construction. Use when the user asks about API casing grades and ratings, burst and collapse pressure ratings, cementing requirements, wellbore integrity testing, pressure test criteria, API standard references, ISO 10426 cementing, casing running procedures, tubular connection ratings, or drilling regulations. Trigger phrases include casing selection for given depth and pressure, API burst rating, casing collapse pressure, cement job design standards, API RP 100 well integrity, primary cementing design, casing weight and grade selection, wellbore integrity testing protocol, state well construction regulations, or tubing rating for production conditions.

Review and extract engineering value from local PVT laboratory reports, spreadsheets, PDFs, and table exports including CCE, CVD, differential liberation, separator tests, viscosity tables, and black-oil summaries. Use when the user provides a PVT report and asks to extract bubble point, Rs, Bo, Bg, shrinkage, dewpoint, condensate dropout behavior, lab quality issues, or black-oil inputs for simulation and nodal analysis. Trigger phrases include PVT report, lab report review, CCE, CVD, differential liberation, separator test, black-oil table, fluid report, extract PVT data, or QC this lab report.

Design and analyze artificial lift systems for oil and gas wells including rod pumping, electric submersible pumps, gas lift, and plunger lift. Covers liquid loading prediction using Turner and Coleman critical velocity criteria, rod pump design per API RP 11L including polished rod load, gearbox torque, pump displacement and fillage, ESP selection and sizing including stage count, total dynamic head, motor horsepower and cable losses, gas lift design including single-point injection pressure, valve spacing by pressure traverse, kickoff requirements, and GLR effect on flowing gradient, and plunger lift cycle timing. Use when determining if a well is liquid loading, selecting an artificial lift method, sizing an ESP or rod pump, designing a gas lift system, or calculating lift performance for PNGE production courses. Trigger phrases include liquid loading, Turner criteria, rod pump design, ESP sizing, polished rod load, gas lift valve spacing, plunger lift timing, pump-off control, artificial lift selection, critical flow rate, or PBHFP calculation.

Interpret hydraulic fracturing diagnostics and stage execution data including DFIT and minifrac closure analysis, step-rate test interpretation, ISIP estimation, net pressure decomposition, cluster efficiency screening, and treatment-pressure troubleshooting. Use when the user asks about closure pressure, fracture gradient, G-function or square-root-time plots, step-rate breakdown pressure, screenout diagnosis, treating pressure analysis, cluster imbalance, frac calibration tests, or stage-by-stage completion performance. Trigger phrases include DFIT, minifrac, ISIP, closure pressure, step-rate, net pressure, treatment pressure matching, cluster efficiency, screenout, pressure signature, tortuosity, or diagnostic fracture injection test.

Predict and mitigate flow assurance problems in oil and gas wellbores and pipelines including hydrate formation, CO2 and H2S corrosion, wax deposition, and carbonate and sulfate scale. Covers hydrate prediction using the Katz chart gravity method and Hammerschmidt inhibitor dosage equation for methanol and glycol injection, CO2 partial pressure calculation and corrosion rate using the de Waard-Milliams equation, H2S partial pressure and NACE MR0175 ISO 15156 sour service threshold determination, wax appearance temperature estimation and inhibition strategies, downhole carbonate scale LSI calculation and BaSO4 sulfate scale ion product, and chemical inhibitor selection and injection rate sizing. Use when evaluating hydrate risk in gas wells or pipelines, sizing methanol or glycol injection systems, assessing CO2 corrosion and material selection, checking H2S sour service requirements, predicting wax or scale problems, or selecting production chemicals. Trigger phrases include hydrate prediction, methanol injection rate, CO2 corrosion rate, H2S sour service, wax appearance temperature, scale inhibitor, NACE MR0175, Hammerschmidt equation, flow assurance, or production chemistry.

Perform hydraulic fracture design and analysis calculations for PNGE 341 completions engineering. Covers fracture geometry estimation using PKN and KGD analytical models, net treating pressure, fluid efficiency, proppant transport and settling, Nolte-Smith pressure diagnostics, fracture closure pressure from ISIP analysis, step-rate test interpretation, and post-frac production analysis. Use this skill when the user needs to estimate fracture length or width, analyze treating pressure trends, calculate fluid loss coefficient, determine closure pressure, design proppant schedules, evaluate net pressure and fracture containment, or work through hydraulic fracturing calculations for coursework or research. Trigger for phrases like "fracture half-length estimate", "PKN model fracture width", "net treating pressure", "fluid efficiency calculation", "closure pressure from ISIP", "Nolte-Smith plot", "proppant settling velocity", "G-function analysis", "step-rate test", or "hydraulic fracture geometry". Produces design parameter tables, step-by-step calculations, and pressure diagnostic interpretations.