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

Gas exhausting test method and system for a gas-containing well of salt cavern gas storage

A testing system and testing method technology, applied in earth-moving drilling, wellbore/well components, etc., can solve problems affecting mechanical integrity testing, affecting nitrogen, etc., to achieve stable measurement, convenient operation, and low technical personnel requirements. Effect

Pending Publication Date: 2019-07-12
CHINA TIANCHEN ENG
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For gas-bearing wells, especially for gas-bearing wells with a large amount of formation gas, the existence of formation gas affects the calculation of nitrogen quality, which in turn affects the mechanical integrity test. Since there are few gas-bearing wells, there is no good countermeasure at present

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
  • Gas exhausting test method and system for a gas-containing well of salt cavern gas storage
  • Gas exhausting test method and system for a gas-containing well of salt cavern gas storage
  • Gas exhausting test method and system for a gas-containing well of salt cavern gas storage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] Except for definitions, the technical terms used in the following embodiments have the same meanings as commonly understood by those skilled in the art to which the present invention belongs. The test reagents used in the following examples, unless otherwise specified, are all conventional biochemical reagents; the experimental methods, unless otherwise specified, are all conventional methods.

[0048] The present invention will be described in detail below in conjunction with embodiments and drawings.

[0049] Such as figure 1 with 2 As shown, a gas-containing gas well exhaust test system for a salt cavern gas storage includes a casing 22 installed in the gas well 4, a casing shoe 6 installed at the lower end of the casing 22, and a brine tank connected by pipelines in sequence 1. Center tube 2. Closed tank 3; The center tube 2 is coaxially installed at the center of the sleeve 22 with a space between them. In addition, the lower end of the center tube 2 extends out of the...

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 provides a gas exhausting test method and system for a gas-containing well of salt cavern gas storage. The gas exhausting test system for the gas-containing well of the salt cavern gas storage includes a casing installed in the gas-containing well and a casing shoe installed at the bottom end of the casing, and further comprises a brine tank, a central tube and a closed tank which successively communicate by a pipeline. The central tube is coaxially installed in the casing and the lower end of the central tube stretches out of the casing. The closed tank is a sealed tank which communicates with an open opening tank through a pipeline. A communication pipeline of the closed tank and the central tube communicates with a fine pipeline in parallel, the fine pipeline is provided with a gas-exhausting controlling valve. The closed tank further communicates with a U-shaped pipe used for gas exhausting, and the other end of the U-shaped pipe is an unloading treatment end;a flow meter is installed on the U-shaped pipe. The gas exhausting test system for the gas-containing well of the salt cavern gas storage can be used for judgingwhether mechanical integrity test can be conducted on the gas-containing well of the salt cavern gas storage or not.

Description

Technical field [0001] The invention belongs to the field of oil and gas resource development, and in particular relates to a method and system for exhaust gas testing of gas-containing wells of salt cavern gas storage. Background technique [0002] Salt cavern gas storage has a complicated process and a long construction period. Among them, the most complicated process and the longest construction period is water-dissolving cavity building, which usually takes several years. The basic principle of water-dissolving cavity building is to use water to dissolve salt rock and then discharge brine , And then form a salt cavity. Before the water-dissolving cavity is made, a mechanical integrity test is required to check the tightness of the well. Only when the mechanical integrity test is qualified can the water-dissolved cavity be made. [0003] Conventional salt cavern gas storage wells begin mechanical integrity testing after drilling. The test process of the mechanical integrity te...

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
Patent Type & Authority Applications(China)
IPC IPC(8): E21B49/00
CPCE21B49/00
Inventor 孙昌路孙威孟晓军彭良海耿永刚白玉平陈存银隋明新高会宾
Owner CHINA TIANCHEN ENG
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