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What is preprocessing and postprocessing in reservoir simulation?
Sometimes old school reservoir simulation engineers talk about pre-/post processing. What does it mean? Preprocessing is just building the model - preparing DATA file with information (configurations; reservoir, PVT, SCAL data, wells, etc.) Postprocessing is results analysis - view the 3D. . . more
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Crain's Petrophysical Handbook
E.R. (Ross) Crain, is a Professional Engineer specializing in the science and application of Integrated Petrophysics. He brings petrophysics, reservoir engineering, geology, and geophysics together in a coherent, easy to understand, rock-physics model using the Log Response Equation and the. . . more
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Volume at standard and reservoir conditions
Sm3 or Rm3? Sm3 means m3 at standard temperatue and pressure (590F/14.5038 PSI or 150C/100 kPa by SPE Standard, but there are other reference conditions in current use). Rm3 means m3 at reservoir conditions. The same for barrels: STB/day, RB/day.. . . more
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Absolute and gauge pressure
What is the difference between PSIA and PSIG? PSI stands for spounds per square inch, it is a unit for measuring pressure. A means absolute. Absolute pressure is the pressure relative to zero or absolute vacuum. G means gauge, that is what pressure gauge measure. Gauge pressure is the pressure. . . more
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Benchmarks cases on reservoir studies from Unisim
Here is a colletion of reservoir studies: https://www.unisim.cepetro.unicamp.br/benchmarks/br/. . . more
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Landmark Exploration Handbook
The Exploration Handbook from Landmark is a compilation of subsurface evaluation techniques written by a team of experts with decades of experience in exploration geology. Get your copy from https://www.landmarksolutions-us.com/exploration-handbook/. . . more
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Calculation of Downhole Dynamometer Cards for Sucker-Rod Pumps: MATLAB code
Finite-Difference Wave Equation Diagnostic Analysis for Sucker-Rod Pumps Based on Everitt and Jennings method: An Improved Finite-Difference Calculation of Downhole Dynamometer Cards for Sucker-Rod Pumps - Everitt and Jennings. . . more
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Python libraries: pyResToolbox
pyResToolbox is a collection of Reservoir Engineering Utilities written in Python. Includes functions to perform simple calculations including: Inflow for oil and gas PVT Calculations for oil PVT calculation for gas Creation of Black Oil Table information Creation of layered permeability. . . more
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Statistics on blowouts occurrence by operational phase
The SINTEF Offshore Blowout Database totally includes 702 offshore blowouts worldwide (November 2021). Data from the US Gulf of Mexico Outer Continental Shelf (US GoM OCS), Norwegian and UK waters are in general better documented than blowouts from other regions. The database and annual report are. . . more
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Python libraries: Two-phase flow and CoolProp
Two-phase flow The two-phase flow is a Python library that implements two-phase flows models and make easy to get the flow properties such as flow pattern, elongated bubble velocity, homogenous model properties etc. This library is structured in a way that the user can program using a simple and. . . more
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Have you ever seen hydrate?
The video of the hydrated well. <html> tags cannot be used outside of normal pages.. . . more
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Python for Geoscience
Learning Python for Geoscience, including: Windows / Linux setup Getting started with Python Using Python Subsurface Tools Geospatial Analysis in Python Back to basics with data and statistical concepts for data analysis Well data exploration, from geothermal production to well logs <html>. . . more
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XTGeo - Python library for G&G from Equinor.
XTGeo is a LGPL licensed Python library with C backend to support manipulation of (oil industry) subsurface reservoir modelling. Typical users are geoscientist and reservoir engineers working with reservoir modelling. XTGeo main environment is as stand-alone Python script or notebook, but can. . . more
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Whitson wiki
The whitson wiki from Whitson, The PVT Company contains a collection of topics, results of work over 40 years. This wiki is meant to help anyone with an interest in PVT, Gas EOR, Gas Condensates, and Tight Unconventionals. https://wiki.whitson.com/. . . more
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FutureGen 2.0 Technical Data
Resource on Energy Data eXchange from the FutureGen project that provides 2D seismic lines, well logs, gravity data, fluid-logging test, pressure monitoring, reservoir geomodel, shapefiles, core photos, reports, and many more. This is a comprehensive collection of all original surface and. . . more
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Golden rule of decline curve analysis (DCA)
The basic assumption in this procedure is that whatever causes controlled the trend of a curve in the past will continue to govern its trend in the future in a uniform manner. [1] This rule means that any change in the behavior of the reservoir or well (the beginning or change in the. . . more
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Geoapps GitHub repo
Open-source application in geoscience with Geoapps. Check out the Geoapps GitHub repo; it contains several python applications in geoscience with visualization, runs in Jupyter notebook. The geoapps project has been created by Mira Geoscience for the development and sharing of open-source. . . more
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Learn from Penn State University, College of Earth and Mineral Sciences
Very helpful free recourses from Penn State College of Earth and Mineral Sciences: https://www.e-education.psu.edu/png301/node/2 - Introduction to Petroleum and Natural Gas Engineering Overview: PNG 301 covers the basics of petroleum and natural gas engineering, including terminology, equipment. . . more
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Solution Manual For Applied Petroleum Reservoir Engineering by Craft
The collection of solutions of applied petroleum reservoir engineering problems. https://issuu.com/kokikuw/docs/pdf. . . more
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Oil Men - Tales From the South Texas Oil Patch
OILMEN: Tales from the South Texas Oil Patch tells the story of the oil and gas industry and how an accidental discovery in 1854 transformed a once untamed frontier into what is now one of the richest oil producing areas in the nation. This one hour documentary depicts the risky adventures of early. . . more
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Gases on Crash Course Chemistry
Talks about gases on Crash Course Chemistry. The Ideal Gas Law Gases are everywhere, and this is good news and bad news for chemists. The good news: when they are behaving themselves, it's extremely easy to describe their behavior theoretically, experimentally and mathematically. The bad news. . . more
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SPE Data Repository
The SPE Bleeding Edge of RTA group (BERG) is collecting data from industry partners to make available for use for training, research, publishing and development. The sole stipulation to its use is that it is properly referenced when used in an internal or external document or published work. This. . . more
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The Open Group OSDUTM Data Platform Mercury Release (R3) now available
The Mercury Release of the OSDU Data Platform is the result of a collaborative project to deliver an industry developed Open Source solution to meet the needs of the energy industry. This first production release of the OSDU Data Platform is available to anyone who wants to: Have a single data. . . more
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What is the difference between bubblepoint and dewpoint?
Both bubblepoint and dewpoint are saturation pressures for mixture of hydrocarbon and non-hydrocarbon components. At a given temperature, the condition occurs when an oil releases an infinitesimal bubble of gas from solution when pressure drops below the saturation pressure. This pressure called. . . more
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Petroleum Engineering @ Top Dog Engineer
Brandon Tolbert, an engineer, worked at some of the biggest companies in their respective industries including ExxonMobil, Boeing, and Raytheon. He created Top Dog Engineer where he write about Petroleum Engineering. https://topdogengineer.com/petroleum-engineering/ His Youtube. . . more
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