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

An integrated device for testing and sampling combined with perforation

A joint operation and sampling tube technology, applied in the direction of measurement, production fluid, borehole/well components, etc., can solve the problems of complex core tool structure, small formation pressure fluctuation, complex construction technology, etc., to achieve reliable well test interpretation results, The effect of large pressure fluctuation range and simple construction process

Active Publication Date: 2022-02-15
CHINA PETROLEUM & CHEM CORP +1
View PDF25 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The above formation testers have been widely used at present, but their defects are very obvious: 1. The core tool structure is complex and difficult to maintain; 2. There are many related tools, the pipe string is complicated, and it is prone to failure in the downhole; 3. The construction process is complicated. High quality and experience requirements for construction personnel; 4. The core tools need to be imported, and the technology is controlled by others; 5. The sampling volume of high-pressure physical properties is small, no more than 2000ml, resulting in small formation pressure fluctuations and short detection pressure radius; 6. High cost

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
  • An integrated device for testing and sampling combined with perforation
  • An integrated device for testing and sampling combined with perforation
  • An integrated device for testing and sampling combined with perforation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] In order to make the above and other objects, features and advantages of the present invention more comprehensible, the preferred embodiments are listed below and shown in the accompanying drawings in detail as follows.

[0030] Such as figure 2 as shown, figure 2 It is a structural diagram of a device integrated with perforation testing and sampling of the present invention. The integrated device for testing and sampling combined with perforation is composed of a pressure thermometer support cylinder 1 , a vacuum sampling cylinder 2 , a pressure control switch 3 and a packer 4 .

[0031] Such as image 3 As shown, the pressure thermometer support cylinder 1 is a hollow thick-walled metal cylinder, and the side wall is symmetrically opened with a pressure thermometer slot. The pressure change in the liquid stage and the pressure recovery in the later stage. It is connected to the vacuum sampling cylinder through the joint hoop. In one embodiment, the upper joint ...

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 an integrated device for testing and sampling combined with perforation. The integrated device for testing and sampling combined with perforation includes a vacuum sampling cylinder, a pressure control switch and a packer. The testing and sampling integrated device combined with perforation is set at a predetermined position in the well. The perforating gun is located at the lower end of the packer. The pressure control switch is located at the lower end of the perforating gun. When the outlet fluid pressure rises, the pressure-controlled switch is triggered by the pressure, and the liquid inlet hole on the pressure-controlled switch is opened to allow liquid to enter the vacuum sampling cylinder for formation testing in the vacuum sampling cylinder. The upper end is connected with the pressure control switch through a joint collar, and the vacuum sampling cylinder is a liquid sampling device and is evacuated in advance. The testing and sampling integrated device combined with perforation can realize the integration of perforating, testing and high-pressure physical property sampling, and can completely replace the current complex open hole / completion formation testing.

Description

technical field [0001] The invention relates to the technical field of stratum testing, in particular to an integrated device for testing and sampling combined with perforation. Background technique [0002] Formation testing technology is a method to finally determine the properties of oil and gas reservoirs. It is not only fast and economical, but also can directly record the parameters of oil and gas reservoirs under production status from a dynamic perspective. It can discover and correctly evaluate oil and gas reservoirs in time and serve the whole process of oil and gas exploration and development. The construction process is to lower the test tool into the test interval through the tubing, and use the ground operation to seal the packer, isolate the mud / perforation fluid and other intervals from the test layer, and then control the ground to open the downhole test The valve allows the formation fluid in the test interval to flow into the pipe string through the scree...

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 Patents(China)
IPC IPC(8): E21B49/00E21B49/08E21B47/06E21B47/07E21B43/116
CPCE21B43/116E21B47/06E21B49/00E21B49/081E21B49/088E21B47/07
Inventor 陈培胜王昊宋李煜郑彬涛陈凯冯绍云陈磊王华卢娜娜隋文
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