Unlock instant, AI-driven research and patent intelligence for your innovation.

Plasma pulse pretreatment bridge plug section fracturing method

A segmented fracturing and pulse processing technology, which is applied in the direction of earthwork drilling, production fluid, wellbore/well components, etc., can solve the problems of high construction pressure, high formation fracture pressure, high performance requirements of fracturing construction equipment, and achieve Effects of improving work efficiency and ensuring work safety

Inactive Publication Date: 2018-11-23
CHINA PETROLEUM & CHEM CORP +1
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for many deep unconventional oil and gas resources, the formation fracture pressure is high, and the fracturing operation pressure is high, which results in high construction risks, high performance requirements for fracturing construction equipment, and some construction wells are even difficult to perform fracturing. Operation

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
  • Plasma pulse pretreatment bridge plug section fracturing method
  • Plasma pulse pretreatment bridge plug section fracturing method
  • Plasma pulse pretreatment bridge plug section fracturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] In order to make the technical solutions and advantages of the present invention clearer, the exemplary embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all implementations. Exhaustive list of examples. And in the case of no conflict, the embodiments and the features in the embodiments of the present invention can be combined with each other.

[0047] The inventor noticed in the process of invention that for many deep unconventional oil and gas resources, the fracture pressure of the formation is high, and the construction pressure during fracturing is high, which results in high construction risks and high performance requirements for fracturing construction equipment. Construction wells are even harder to frack.

[0048] In view of the above deficiencies, embodiments of the present invention p...

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 plasma pulse pretreatment bridge plug section fracturing method. The method comprises following steps: I) placing a perforating gun and a plasma pulse generating device to a predetermined position of a target layer of the casing for perforating; II) pretreating the target layer by the plasma pulse generating device to perform the fracturing operation of the target layer; III) sending the perforating gun, the plasma pulse generating device, a bridge plugging tool and a bridge plug to a next target layer; IV) performing seat seal, perforating, plasma pulse pretreatment and fracturing operations; V) repeating step III) and IV) until the section fracturing of each target layer is finished. The method can effectively reduce the construction pressure during the fracturing of the target layers and ensure the safety of the operation.

Description

technical field [0001] The invention relates to the technical field of well completion engineering of petroleum unconventional oil and gas reservoirs, in particular to a segmental fracturing method for bridge plug pretreatment by plasma pulses. Background technique [0002] Horizontal well bridge plug staged fracturing technology, as an effective technical means for the development of unconventional oil and gas reservoirs, has been widely used at home and abroad. Especially in the development of domestic shale gas resources, the bridge plug staged fracturing completion technology is mainly used, and good reservoir stimulation results have been achieved. However, for many deep unconventional oil and gas resources, the formation fracture pressure is high, and the fracturing operation pressure is high, which results in high construction risks, high performance requirements for fracturing construction equipment, and some construction wells are even difficult to perform fracturin...

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): E21B43/26
CPCE21B43/26
Inventor 朱和明崔晓杰侯乃贺赵晨熙吴晋霞薛占峰
Owner CHINA PETROLEUM & CHEM CORP
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