Supercharge Your Innovation With Domain-Expert AI Agents!

Thermal concentric layered electric ignition process string

A technology of process pipe string and electric ignition, which is applied in the direction of drill pipe, casing, wellbore/well components, etc., can solve the problems that cannot be realized, and achieve the problems of ensuring sealing, improving vertical production status, and solving uneven gas injection Effect

Active Publication Date: 2022-02-01
PETROCHINA CO LTD
View PDF27 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Multi-layer ignition and multi-layer quantitative gas injection cannot be realized at this stage

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
  • Thermal concentric layered electric ignition process string
  • Thermal concentric layered electric ignition process string
  • Thermal concentric layered electric ignition process string

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0093] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0094] Except for the direction indicated by the separate definition, the directions of up and down mentioned in this article are all indicated by the present invention. figure 1 The upper and lower directions in the guideline shall prevail, which shall be explained together here.

[0095] Such as figure 1 As shown, the present invention proposes a thermal type concentric layered electric ignition process string, including an outer pipe string and an inner pi...

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 present invention is a thermal type concentric layered electric ignition process pipe string, which includes an outer pipe string and an inner pipe string; the outer pipe string is provided with anchoring devices, first thermal fire drive Packer, gas injection valve, insertion sealing device, heat insulation tube, upper gas injection sliding sleeve, second thermal fire drive packer, lower gas injection sliding sleeve and plug; the upper gas injection sliding sleeve corresponds to the upper The oil layer position, the lower gas injection sliding sleeve corresponds to the lower oil layer position; the inner pipe string includes an oil pipe releaser, an oil pipe and a sealed inner pipe in sequence from top to bottom; the sealed inner pipe is sealed and inserted in the insertion in the sealing device. The thermal concentric layered electric ignition process string can realize layered ignition and layered gas injection for fire drive, improve the longitudinal production status of fire drive oil layers, and solve the contradiction of uneven gas injection.

Description

technical field [0001] The invention relates to an oil well fire flooding production process string, in particular to a thermal type concentric layered electric ignition process string. Background technique [0002] Fire flooding, also known as burning the oil layer, specifically refers to an oil recovery method that uses electricity, chemical methods, etc. to make the temperature of the oil layer reach the ignition point of crude oil, and inject air or oxygen into the oil layer to continue burning the crude oil in the oil layer. In the process of fire flooding development, there are large differences in the degree of vertical production of oil reservoirs, uneven gas absorption in each layer, and single-layer breakthrough phenomenon, which makes it difficult to improve the air injection parameters of gas injection wells, and the production wells show structural The high part takes effect first, and the low part of the structure takes effect later, and there are problems of u...

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): E21B43/243E21B17/042E21B33/12
CPCE21B43/243E21B17/042E21B33/12
Inventor 陈鹏何传兴朱晓亮董亮田野胡燕许佳赛徐雪楠
Owner PETROCHINA CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com