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

Oil production device and application thereof

A technology for oil production equipment and tubing, which is applied in the direction of production fluid, earthwork drilling, wellbore/well components, etc., and can solve problems such as gas lock phenomenon, oil well shutdown, low recovery rate of gas injection gravity flooding oil recovery technology, etc.

Inactive Publication Date: 2018-11-02
PETROCHINA CO LTD
View PDF10 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the moving liquid level drops to the suction port of the pump, the gas enters the pump, and the gas channeling phenomenon occurs, which reduces the pump efficiency. In severe cases, the gas lock phenomenon occurs, and the oil well stops production, resulting in a relatively high recovery rate of the gas injection gravity flooding recovery technology. low level

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
  • Oil production device and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] In the first aspect, the embodiment of the present invention provides an oil production device, see figure 1 , including a double-tubular packer 1, a first oil pipe 2 and a second oil pipe 3 communicating with the double-tubular packer 1, and a double oil pipe that fixes the upper ends of the first oil pipe 2 and the second oil pipe 3 hang 4;

[0026] The first oil pipe 2 includes an upper pipe 201 connected to the upper end of the double-pipe packer 1 and a lower pipe 202 connected to the lower end of the double-pipe packer 1, and the upper pipe 201 includes a pump for oil production Assembly 201a, the length of the lower pipe 202 is sufficient to enter the oil zone;

[0027] Both ends of the second tubing 3 are respectively ...

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 an oil production device and application thereof, and belongs to the technical field of oil production. The oil production device comprises a dual-pipe packer, a first oil pipeand a second oil pipe which are communicated with the dual-pipe packer, and a dual-oil-pipe hanger for fixing the upper ends of the first oil pipe and the second oil pipe; the first oil pipe comprises an upper pipe body which is connected with the upper end of the dual-pipe packer and a lower pipe body which is connected with the lower end of the dual-pipe packer; the upper pipe body comprises apump assembly used for oil production, and the lower pipe body is long enough to enter an oil area; the two ends of the second oil pipe are connected with the dual-oil-pipe hanger and the upper end ofthe dual-pipe packer respectively. By means of the oil production device, an oil production channel is formed by the first oil pipe, an exhaust channel is formed by the second oil pipe, in the process of oil production, the second oil pipe is adopted for exhaust, and the problems of gas channeling and gas locking are solved.

Description

technical field [0001] The invention relates to the technical field of oil recovery, in particular to an oil recovery device and its application. Background technique [0002] As oilfield development enters the middle and late stages, the comprehensive water cut of oil wells increases, and the recovery rate of oilfield water injection development is approaching the limit. The water cut of oil wells can reach more than 95%, but the recovery degree of recoverable reserves is still at a low level. There is still a large amount of remaining crude oil that cannot be extracted. The tertiary oil recovery technology of gas injection gravity flooding is an effective method to enhance oil recovery again after water flooding. It refers to injecting gas at the top of the oil-bearing structure for inclined and high-permeability formations, and using oil and gas gravity differentiation to maintain pressure. Or partially maintain pressure to extract crude oil. However, the coexistence of...

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): E21B43/00E21B43/12
CPCE21B43/121
Inventor 秦义谢刚赵文秀王建宁杨小平谢江裴宗贤李占省谢唯一
Owner PETROCHINA CO LTD
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