PyResToolbox - A collection of Reservoir Engineering Utilities

Overview

pyrestoolbox

A collection of Reservoir Engineering Utilities

This set of functions focuses on those that the author uses often while crafting programming solutions. These are the scripts that are often copy/pasted from previous work - sometimes slightly modified - resulting in a trail of slightly different versions over the years. Some attempt has been made here to make this implementation flexible enough such that it can be relied on as-is going forward.

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 distribution consistent with a Lorenze heterogeneity factor
  • Extract problem cells information from Intesect (IX) print files
  • Generation of AQUTAB include file influence functions for use in ECLIPSE
  • Creation of Corey and LET relative permeability tables in Eclipse format

This is the initial public release, with improvements and additions expected over time. Apologies in advance that it is only in oilfield units with no current plans to add multi-unit support.

Function List

Inflow
  • Gas Flow Rate Radial
  • Gas Flow Rate Linear
  • Oil Flow Rate Radial
  • Oil Flow Rate Linear
Gas PVT
  • Gas Tc & Pc Calculation
  • Gas Z-Factor Calculation
  • Gas Viscosity
  • Gas Viscosity * Z
  • Gas Compressibility
  • Gas Formation Volume Factor
  • Gas Density
  • Gas Water of Condensation
  • Convert P/Z to P
  • Convert Gas Gradient to SG
  • Delta Pseudopressure
  • Gas Condensate FWS SG
Oil PVT
  • Oil Density from MW
  • Oil Critical Properties with Twu
  • Incrememtal GOR post Separation
  • Oil Bubble Point Pressure
  • Oil GOR at Pb
  • Oil GOR at P
  • Oil Compressibility
  • Oil Density
  • Oil Formation Volume Factor
  • Oil Viscosity
  • Generate Black Oil Table data
  • Estimate soln gas SG from oil
  • Estimate SG of gas post separator
  • Calculate weighted average surface gas SG
Brine PVT
  • Calculate suite of brine properties
Permeability Layering
  • Lorenz coefficient from Beta value
  • Lorenz coefficient from flow fraction
  • Lorenz coefficient to flow fraction
  • Lorenz coefficient to permeability array
Simulation Helpers
  • Summarize IX convergence errors from PRT file
  • Create Aquifer Influence Functions
Relative Permeability
  • Create sets of rel perm tables

Getting Started

Install the library with pip:

pip install pyrestoolbox

Import library into your project and start using.

A simple example below of estimating oil bubble point pressure.

>>> from pyrestoolbox import pyrestoolbox as rtb
>>> rtb.oil_pbub(api=43, degf=185, rsb=2350, sg_g =0.72, pbmethod ='VALMC')
5179.51086900132

A set of Gas-Oil relative permeability curves with the LET method

>>> import matplotlib.pyplot as plt
>>> df = rtb.rel_perm(rows=25, krtable='SGOF', krfamily='LET', kromax =1, krgmax =1, swc =0.2, sorg =0.15, Lo=2.5, Eo = 1.25, To = 1.75, Lg = 1.2, Eg = 1.5, Tg = 2.0)
>>> plt.plot(df['Sg'], df['Krgo'], c = 'r', label='Gas')
>>> plt.plot(df['Sg'], df['Krog'], c = 'g', label='Oil')
>>> plt.title('SGOF Gas Oil LET Relative Permeability Curves')
>>> plt.xlabel('Sg')
>>> plt.ylabel('Kr')
>>> plt.legend()
>>> plt.grid('both')
>>> plt.plot()

SGOF Relative Permeability Curves

Or a set of Water-Oil relative permeability curves with the Corey method

>>> df = rtb.rel_perm(rows=25, krtable='SWOF', kromax =1, krwmax =0.25, swc =0.15, swcr = 0.2, sorw =0.15, no=2.5, nw=1.5)
>>> plt.plot(df['Sw'], df['Krow'], c = 'g', label='Oil')
>>> plt.plot(df['Sw'], df['Krwo'], c = 'b', label='Water')
>>> plt.title('SWOF Water Oil Corey Relative Permeability Curves')
>>> plt.xlabel('Sw')
>>> plt.ylabel('Kr')
>>> plt.legend()
>>> plt.grid('both')
>>> plt.plot()

SWOF Relative Permeability Curves

A set of dimensionless pressures for the constant terminal rate Van Everdingin & Hurst aquifer, along with an AQUTAB.INC export for use in ECLIPSE.

>>> ReDs = [1.5, 2, 3, 5, 10, 25, 1000]
>>> tds, pds = rtb.influence_tables(ReDs=ReDs, export=True)
>>>
>>> for p, pd in enumerate(pds):
>>>     plt.plot(tds, pd, label = str(ReDs[p]))
>>>
>>> plt.xscale('log')
>>> plt.yscale('log')
>>> plt.legend(loc='upper left')
>>> plt.grid(which='both')
>>> plt.xlabel('Dimensionless Time (tD)')
>>> plt.ylabel('Dimensionless Pressure Drop (PD)')
>>> plt.title('Constant Terminal Rate Solution')
>>> plt.show()

Constant Terminal Rate influence tables

Or creating black oil table information for oil

>>> results = rtb.make_bot_og(pi=4000, api=38, degf=175, sg_g=0.68, pmax=5000, pb=3900, rsb=2300, nrows=50)
>>> df, st_deno, st_deng, res_denw, res_cw, visw, pb, rsb, rsb_frac, usat = results['bot'], results['deno'], results['deng'], results['denw'], results['cw'], results['uw'], results['pb'], results['rsb'], results['rsb_scale'], results['usat']
>>> print('Stock Tank Oil Density:', st_deno, 'lb/cuft')
>>> print('Stock Tank Gas Density:', st_deng, 'lb/cuft')
>>> print('Reservoir Water Density:', res_denw, 'lb/cuft')
>>> print('Reservoir Water Compressibility:', res_cw, '1/psi')
>>> print('Reservoir Water Viscosity:', visw,'cP')

>>> fig, ((ax1, ax2), (ax3, ax4)) = plt.subplots(2, 2, figsize=(10,10))
>>> ax1.plot(df['Pressure (psia)'], df['Rs (scf/stb)'])
>>> ax2.plot(df['Pressure (psia)'], df['Bo (rb/stb)'])
>>> ax3.plot(df['Pressure (psia)'], df['uo (cP)'])
>>> ax4.semilogy(df['Pressure (psia)'], df['Co (1/psi)'])
>>> ...
>>> plt.show()
Stock Tank Oil Density: 52.05522123893805 lb/cuft
Stock Tank Gas Density: 0.052025361717109773 lb/cuft
Reservoir Water Density: 61.40223160167964 lb/cuft
Reservoir Water Compressibility: 2.930237693350768e-06 1/psi
Reservoir Water Viscosity: 0.3640686136171888 cP

Black Oil Properties

And gas

>>> fig, ((ax1, ax2), (ax3, ax4)) = plt.subplots(2, 2, figsize=(10,10))
>>> ax1.semilogy(df['Pressure (psia)'], df['Bg (rb/mscf'])
>>> ax2.plot(df['Pressure (psia)'], df['ug (cP)'])
>>> ax3.plot(df['Pressure (psia)'], df['Gas Z (v/v)'])
>>> ax4.semilogy(df['Pressure (psia)'], df['Cg (1/psi)'])
>>> ...
>>> plt.show()

Dry Gas Properties

With ability to generate Live Oil PVTO style table data as well

>>> pb = 4500
>>> results = rtb.make_bot_og(pvto=True, pi=4000, api=38, degf=175, sg_g=0.68, pmax=5500, pb=pb, nrows=25, export=True)
>>> df, st_deno, st_deng, res_denw, res_cw, visw, pb, rsb, rsb_frac, usat = results['bot'], results['deno'], results['deng'], results['denw'], results['cw'], results['uw'], results['pb'], results['rsb'], results['rsb_scale'], results['usat']
>>>
>>> if len(usat) == 0:
>>>     usat_flag = False
>>> else:
>>>     usat_flag=True
>>>     usat_p, usat_bo, usat_uo = usat
>>>
>>> try:
>>>     pb_idx = df['Pressure (psia)'].tolist().index(pb)
>>>     bob = df['Bo (rb/stb)'].iloc[pb_idx]
>>>     rsb = df['Rs (mscf/stb)'].iloc[pb_idx]
>>>     uob = df['uo (cP)'].iloc[pb_idx]
>>>     cob = df['Co (1/psi)'].iloc[pb_idx]
>>>     no_pb = False
>>> except:
>>>     print('Pb was > Pmax')
>>>     no_pb = True
>>>
>>> print('Pb (psia):', pb)
>>> print('Bob (rb/stb):', bob)
>>> print('Rsb (mscf/stb):', rsb)
>>> print('Rsb Scaling Required:', rsb_frac)
>>> print('Visob (cP):', uob)
>>> print('Cob (1/psi):', cob,'\n')
>>> print('Stock Tank Oil Density:', st_deno, 'lb/cuft')
>>> print('Stock Tank Gas Density:', st_deng, 'lb/cuft')
>>> print('Reservoir Water Density:', res_denw, 'lb/cuft')
>>> print('Reservoir Water Compressibility:', res_cw, '1/psi')
>>> print('Reservoir Water Viscosity:', visw,'cP')
>>>
>>> fig, ((ax1, ax2), (ax3, ax4)) = plt.subplots(2, 2, figsize=(10,10))
>>> ax1.plot(df['Pressure (psia)'], df['Rs (mscf/stb)'])
>>> ax2.plot(df['Pressure (psia)'], df['Bo (rb/stb)'])
>>> ax3.plot(df['Pressure (psia)'], df['uo (cP)'])
>>> ax4.semilogy(df['Pressure (psia)'], df['Co (1/psi)'])
>>>
>>> ax1.plot([pb], [rsb], 'o', c='r')
>>> ax2.plot([pb], [bob], 'o', c='r')
>>> ax3.plot([pb], [uob], 'o', c='r')
>>> ax4.plot([pb], [cob], 'o', c='r')
>>>
>>> if usat_flag:
>>>     if no_pb == False:
>>>         for i in range(len(usat_bo)):
>>>             ax2.plot(usat_p[i], usat_bo[i], c='k')
>>>             ax3.plot(usat_p[i], usat_uo[i], c='k')
>>>
>>> fig.suptitle('Black Oil Properties')
>>> ..
>>> ..
>>> plt.show()
Pb (psia): 4500
Bob (rb/stb): 1.6072798403441817
Rsb (mscf/stb): 1.2863705330979234
Rsb Scaling Required: 0.9713981737449556
Visob (cP): 0.3422139569449832
Cob (1/psi): 5.711273668114706e-05

Stock Tank Oil Density: 52.05522123893805 lb/cuft
Stock Tank Gas Density: 0.052025361717109773 lb/cuft
Reservoir Water Density: 61.40223160167964 lb/cuft
Reservoir Water Compressibility: 2.930237693350768e-06 1/psi
Reservoir Water Viscosity: 0.3640686136171888 cP

Live Oil Properties

Development

pyrestoolbox is maintained by Mark W. Burgoyne (https://github.com/mwburgoyne).

You might also like...
Python based utilities for interacting with digital multimeters that are built on the FS9721-LP3 chipset.

Python based utilities for interacting with digital multimeters that are built on the FS9721-LP3 chipset.

ZX Spectrum Utilities: (zx-spectrum-utils)
ZX Spectrum Utilities: (zx-spectrum-utils)

Here are a few utility programs that can be used with the zx spectrum. The ZX Spectrum is one of the first home computers from the early 1980s.

A collection of common regular expressions bundled with an easy to use interface.

CommonRegex Find all times, dates, links, phone numbers, emails, ip addresses, prices, hex colors, and credit card numbers in a string. We did the har

Finds price floor for every single attribute in a given collection

Solana Solanart Scanner Enjoy the Free Code Steps to run Download VS Code

Simple collection of GTPS Flood in Python.

GTPS Flood Simple collection of GTPS Flood in Python. NOTE Give me credit if you use this source, don't trade/sell this tool, And USE AT YOUR OWN RISK

A collection of custom scripts for working with Quake assets.

Custom Quake Tools A collection of custom scripts for working with Quake assets. Features Script to list all BSP files in a Quake mod

A collection of resources/tools and analyses for the angr binary analysis framework.

Awesome angr A collection of resources/tools and analyses for the angr binary analysis framework. This page does not only collect links and external r

Modest utility collection for development with AIOHTTP framework.

aiohttp-things Modest utility collection for development with AIOHTTP framework. Documentation https://aiohttp-things.readthedocs.io Installation Inst

Collection of code auto-generation utility scripts for the Horizon `Boot` system module

boot-scripts This is a collection of code auto-generation utility scripts for the Horizon Boot system module, intended for use in Atmosphère. Usage Us

Comments
  • refactor oil sg equations to func and correct 141.4 -> 141.5 per standard API equation

    refactor oil sg equations to func and correct 141.4 -> 141.5 per standard API equation

    There are 4 places in the source code where the oil/condensate specific gravity is calculated from the API. So I refactored those lines with the general equation near the top of the file.

    def oil_sg(api_value: float) -> float: """ Returns oil specific gravity given API value of oil api_value: API value """ return 141.5 / (api_value+131.5)

    The original 4 places the specific gravity was calculated using 141.4 (assume a typo). Petrowiki API Reference

    Thank you for the repo and I will continue reading the source code!

    opened by mwentzWW 1
Releases(1.3.8)
Owner
Mark W. Burgoyne
Principal Reservoir Engineer and Python enthusiast
Mark W. Burgoyne
Create C bindings for python automatically with the help of libclang

Python C Import Dynamic library + header + ctypes = Module like object! Create C bindings for python automatically with the help of libclang. Examples

1 Jul 25, 2022
API Rate Limit Decorator

ratelimit APIs are a very common way to interact with web services. As the need to consume data grows, so does the number of API calls necessary to re

Tomas Basham 575 Jan 05, 2023
Collection of code auto-generation utility scripts for the Horizon `Boot` system module

boot-scripts This is a collection of code auto-generation utility scripts for the Horizon Boot system module, intended for use in Atmosphère. Usage Us

4 Oct 11, 2022
Nmap script to guess* a GitLab version.

gitlab-version-nse Nmap script to guess* a GitLab version. Usage https://github.com/righel/gitlab-version-nse cd gitlab-version-nse nmap target --s

Luciano Righetti 120 Dec 05, 2022
🌲 A simple BST (Binary Search Tree) generator written in python

Tree-Traversals (BST) 🌲 A simple BST (Binary Search Tree) generator written in python Installation Use the package manager pip to install BST. Usage

Jan Kupczyk 1 Dec 12, 2021
Automatic generator of readmes for git repositories (Includes file' listing)

Readme Generator We are bored of write the same things once and once again. We trust in the comments made inside of our files, and we decided to autom

Natalia Vera Duran 6 Jul 20, 2021
Check subdomains for Open S3 buckets

SuBuket v1.0 Check subdomains for Open S3 buckets Coded by kaiz3n Basically, this tool makes use of another tool (sublist3r) to fetch subdomains, and

kaiz3n 4 Dec 29, 2021
Python lightweight dependency injection library

pythondi pythondi is a lightweight dependency injection library for python Support both sync and async functions Installation pip3 install pythondi Us

Hide 41 Dec 16, 2022
Grank is a feature-rich script that automatically grinds Dank Memer for you

Grank Inspired by this repository. This is a WIP and there will be more functions added in the future. What is Grank? Grank is a feature-rich script t

42 Jul 20, 2022
Python library to decorate and beautify strings

outputformat Python library to decorate and beautify your standard output 💖 Ins

Felipe Delestro Matos 259 Dec 13, 2022
Customized python validations.

A customized python validations.

Wilfred V. Pine 2 Apr 20, 2022
A library to easily convert climbing route grades between different grading systems.

pyclimb A library to easily convert climbing route grades between different grading systems. In rock climbing, mountaineering, and other climbing disc

Ilias Antonopoulos 4 Jan 26, 2022
✨ Un bot Twitter totalement fait en Python par moi, et en français.

Twitter Bot ❗ Un bot Twitter totalement fait en Python par moi, et en français. Il faut remplacer auth = tweepy.OAuthHandler(consumer_key, consumer_se

MrGabin 3 Jun 06, 2021
An extremely simple package with a single utillity class used for gracefully handling POSIX shutdown signals.

graceful-killer An extremely simple package with a single utillity class used for gracefully handling POSIX shutdown signals. Installation Use pip to

Sven Ćurković 1 Dec 09, 2021
Report Bobcat Status to Google Sheets

bobcat-status-reporter Report Bobcat Status to Google Sheets Why? I recently relocated my miner from my root into the attic. Bobcat recommends operati

Jasmit Tarang 3 Sep 22, 2021
A plugin to simplify creating multi-page Dash apps

Multi-Page Dash App Plugin A plugin to simplify creating multi-page Dash apps. This is a preview of functionality that will of Dash 2.1. Background Th

Plotly 19 Dec 09, 2022
Multipurpose Growtopia Server tools, can be used for newbie to learn things.

Information Multipurpose Growtopia Server tools, can be used for newbie to learn things. Requirements - Python 3.x - Operating System (Recommended : W

Morphias 2 Oct 29, 2021
Python utility for discovering interesting CFPreferences values on iDevices

Description Simple utility to search for interesting preferences in iDevices. Installation python3 -m pip install -U --user cfprefsmon Example In this

12 Aug 19, 2022
This is Cool Utility tools that you can use in python.

This is Cool Utility tools that you can use in python. There are a few tools that you might find very useful, you can use this on pretty much any project and some utils might help you a lot and save

Senarc Studios 6 Apr 18, 2022
🔩 Like builtins, but boltons. 250+ constructs, recipes, and snippets which extend (and rely on nothing but) the Python standard library. Nothing like Michael Bolton.

Boltons boltons should be builtins. Boltons is a set of over 230 BSD-licensed, pure-Python utilities in the same spirit as — and yet conspicuously mis

Mahmoud Hashemi 6k Jan 04, 2023