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

Experimental device and method for measuring combined layer permeability of multilayer combined gas recovery well

An experimental device, multi-layer commingled production technology, applied in surveying, earthwork drilling, wellbore/well components, etc., can solve the problems of poor intuition and accuracy, limited production time, and high operating costs, and improve accuracy , accurate measurement, low cost effect

Active Publication Date: 2015-11-25
CHINA PETROLEUM & CHEM CORP +1
View PDF6 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The combined permeability of multi-layered gas wells is an important parameter of gas wells in multi-layered reservoirs. At present, the actual production data of gas wells can be used to analyze the combined permeability of multi-layered gas wells. However, this analysis method is limited by the actual production time. restrictions, it is difficult to obtain this law accurately and intuitively
In addition, the operation cost of on-site testing is high and the cycle is long
Numerical simulation software is restricted by the accuracy of the gas well reservoir model, and its intuition and accuracy are also poor

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
  • Experimental device and method for measuring combined layer permeability of multilayer combined gas recovery well
  • Experimental device and method for measuring combined layer permeability of multilayer combined gas recovery well
  • Experimental device and method for measuring combined layer permeability of multilayer combined gas recovery well

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The present invention will be further described below in conjunction with accompanying drawing.

[0028] figure 1 Schematically shows an experimental device 10 (hereinafter referred to as the experimental device 10 ) for measuring the composite layer permeability of a multi-layer gas production well according to the present invention. like figure 1 As shown, the experimental device 10 includes a formation simulator 20, a constant pressure gas source 11 connected to the measurement gas inlet of the formation simulator 20 through the measurement gas inlet pipes 14a, 14b and 14c, and connected to the overburden fluid inlet of the formation simulator 20 The overburden fluid source 12, and the outlet pipe 15b connected with the outlet of the formation simulator 20. Intake flowmeters 17a, 17b and 17c are respectively arranged on the inlet pipes 14a, 14b and 14c, and an outlet flowmeter 18b is arranged on the outlet pipe 15b. The gas output can be measured by the gas output...

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 relates to an experimental device and a method for measuring a combined layer permeability of a multilayer combined gas recovery well. The device comprises a stratum simulator, wherein multiple layers of rock cores are laminated in the stratum simulator; separation layers are arranged between the adjacent rock cores; deformable sealing gaskets are respectively arranged between the top and bottom walls of the stratum simulator and the corresponding rock cores so as to form laminating fluid chambers between the top wall and / or the bottom wall and the corresponding sealing gaskets; multiple measured gas inlets communicated with the corresponding rock cores are respectively formed in the shell side wall of the stratum simulator; laminating fluid inlets communicated with the laminating fluid chambers are formed in the shell bottom wall of the stratum simulator, and extend to penetrate through the top wall of the stratum simulator and penetrate through simulation shafts, for leading out measured gas, of all the rock cores to measure constant gas output of the simulation shafts; and the combined layer permeability of the multilayer combined gas recovery well is obtained through the gas output.

Description

technical field [0001] The invention relates to oil and gas well engineering, in particular to an experimental device for measuring the combined layer permeability of multi-layered gas wells. The invention also relates to a method for measuring the combined layer permeability of the multilayered gas production well by using the experimental device. Background technique [0002] Most of the low-permeability gas reservoirs are multi-layer reservoirs. In order to increase the single well production, gas wells often exploit multiple reservoirs at the same time. The simultaneous production of gas from multiple underground reservoirs is represented as the output of one wellhead on the surface. [0003] The combined permeability of multi-layered gas wells is an important parameter of gas wells in multi-layered reservoirs. At present, the actual production data of gas wells can be used to analyze the combined permeability of multi-layered gas wells. However, this analysis method is...

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): E21B47/00
Inventor 郑荣臣王树平严谨史云清
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