Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for calculating reservoir parameters of high-pressure gas reservoir based on oil and gas well production data

A technology of production data and reservoir parameters, applied in calculation, electrical digital data processing, computer-aided design, etc., can solve the problems of large fluctuations in wellhead pressure, difficult conversion of wellhead pressure, high pressure, etc., and achieve low density of pressure data points, The effect of data processing and analysis convenience

Pending Publication Date: 2022-01-11
CHINA PETROLEUM & CHEM CORP +1
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1) High pressure and high temperature make the wellhead pressure more seriously affected by temperature, the wellhead pressure fluctuates more, and it is more difficult to convert the wellhead pressure to the bottom hole pressure

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for calculating reservoir parameters of high-pressure gas reservoir based on oil and gas well production data
  • Method for calculating reservoir parameters of high-pressure gas reservoir based on oil and gas well production data
  • Method for calculating reservoir parameters of high-pressure gas reservoir based on oil and gas well production data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0082] The following description and drawings illustrate specific embodiments of the invention sufficiently to enable those skilled in the art to practice them. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. The scope of embodiments of the present invention includes the full scope of the claims, and all available equivalents of the claims. Herein, various embodiments may be referred to individually or collectively by the term "invention", which is for convenience only and is not intended to automatically limit the scope of this application if in fact more than one invention is disclosed. A single invention or inventive concept. Herein, relational terms such as first and second etc. are used only to distinguish one entity or operation from another with...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for calculating reservoir parameters of a high-pressure gas reservoir based on oil and gas well production data, and belongs to the technical field of petroleum natural oil and gas exploitation. The method comprises the following steps: performing pressure derivative change analysis on flow field evolution of a reservoir model to obtain a pressure derivative change rule of formation flow field evolution; according to pressure derivative change rule data, applying a flow regularization pressure RNP analysis; according to the analyzed data, applying an RNP method to draw a double logarithmic curve, and identifying flow field characteristics similar to those in a pressure drop test; conducting fitting with a theoretical plate and the double logarithmic curve, and identifying a formation flow field type; obtaining reservoir parameters through calculation of different flow pattern stages. The invention provides an effective well testing analysis method and a reservoir parameter testing means for oil-gas wells with no pressure recovery data and violent flow change, and has important significance for high-pressure gas reservoir property understanding and oil-gas well production dynamic well testing.

Description

technical field [0001] The invention relates to the technical field of petroleum and natural oil and gas exploitation, in particular to a method for evaluating reservoir parameters of high-pressure gas reservoirs based on long-term production data of oil and gas wells. Background technique [0002] Sinopec's high-temperature and high-pressure acid gas reservoirs mainly include blocks such as Puguang, Yuanba, and Western Sichuan. In 2013, Well SN4 obtained a daily gas production of 40×104m in the lower part of the Yingshan Formation. 3 The high-yield industrial gas flow indicates that the SN area has broad prospects for exploration and development, and is an important strategic position for Sinopec's natural gas exploration and development. [0003] The wells in Puguang and Western Sichuan are about 5,000 meters deep, which is shallower than the wells in the SN well area; the well depth in the Yuanba block is close to that in SN, but the formation temperature of the wells in...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06F30/28G06F113/08G06F119/14
CPCG06F30/28G06F2113/08G06F2119/14
Inventor 邹宁张林艳徐燕东马国锐宋海陶杉应海玲王勤聪潘丽娟黄知娟李渭亮杜春朝
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com