Sealing and blocking integrated efficient water blocking tubular column and oil extraction method

A high-efficiency technology for plugging pipes, applied in earthwork drilling, sealing/isolation, wellbore/well components, etc., to achieve the effect of small unsealing load

Inactive Publication Date: 2020-05-22
陕西隆基斯特石油科技有限公司
View PDF9 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Horizontal well oil production is a difficult point in the current oil production industry. The difficulty lies in that, due to the uncertain location of the water outlet, it is impossible to effectively block water and produce water in various situations.

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
  • Sealing and blocking integrated efficient water blocking tubular column and oil extraction method
  • Sealing and blocking integrated efficient water blocking tubular column and oil extraction method
  • Sealing and blocking integrated efficient water blocking tubular column and oil extraction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] 1. The composition and principle of the pipe string The integrated high-efficiency water shut-off pipe string composed of oil well pump, multi-functional valve group, telescopic compensator, Y241 horizontal well special water shut-off packer, setting sliding sleeve, etc. It can be unsealed by lifting the string, and the unsealed load is small, safe and reliable. Mainly, the one-way slip packer is used to seal the water-producing section outside the tubing, and the fluid in the oil-producing section enters the tubing through the tubing tee of the setting sliding sleeve, and is extracted from the ground through the oil well pump, realizing the integration and high efficiency of horizontal wells blockage. Two sets of packers, Y241 and Y341, are used to seal the middle part. Using the difference in setting pressure, the two sets of packers start to set the Y241 packer, and when the pressure increases, the Y341 packer seals the middle part.

[0031] Technical string type

...

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 the field of petroleum machinery, in particular to a sealing and blocking integrated efficient water blocking tubular column and an oil extraction method. An oil pipe can be put into an oil well, the oil well comprises a vertical section and a horizontal section, one or more items are strung on the oil pipe, and the sealing and blocking tubular column is formed. Then, thescheme of the sealing and blocking tubular column is any one of the sealing and blocking root integrated efficient water blocking tubular column A, the sealing and blocking toe integrated efficient water blocking tubular column B and the sealing and blocking middle integrated efficient water blocking tubular column C. A multifunctional valve seat is researched, developed and designed and integrates the various functions of obtaining an over-pressure setting packer, serving as an oil well pump fixing valve during production and serving as a drip during tubular column lifting, and the multifunctional valve seat is connected with a Y241 packer and a telescopic compensator to form the integrated efficient water blocking tubular product.

Description

technical field [0001] The invention relates to the field of petroleum machinery, in particular to an integrated plugging and high-efficiency water plugging string and an oil recovery method. Background technique [0002] Horizontal well oil production is a difficult point in the current oil production industry. The difficulty lies in that, due to the uncertain location of the water outlet, it is impossible to effectively block water and produce in various situations. Contents of the invention [0003] The plugging integrated high-efficiency water plugging pipe string is characterized in that the oil pipe can be put into the oil well, the oil well includes a vertical section and a horizontal section, and more than one object is connected in series on the oil pipe to form the plugging pipe string, and the subsequent plugging pipe string is as follows: Any of the following: [0004] A. Plugging the root of the integrated high-efficiency water plugging pipe string. More than...

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): E21B34/06E21B34/14E21B33/122E21B33/129
CPCE21B34/06E21B34/14E21B33/122E21B33/129
Inventor 谢志明马向明陈浩刘少龙姜莉
Owner 陕西隆基斯特石油科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap