Clustering selective firing bridge shooting combined operation perforating module

A selective and clustering technology, which is applied in the field of oil and gas well fracturing, can solve the problems of low installation efficiency and complicated wiring operation, and achieve the effects of reducing quality, saving production costs, and preventing false initiation

Pending Publication Date: 2020-06-19
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to overcome the disadvantages of complex wiring operation and low installation and use efficiency in the above-mentioned prior art, and to provide a cluster-selective bridge jet as a perforation module

Method used

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  • Clustering selective firing bridge shooting combined operation perforating module
  • Clustering selective firing bridge shooting combined operation perforating module
  • Clustering selective firing bridge shooting combined operation perforating module

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Embodiment Construction

[0032] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0033] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention belongs to the field of oil and gas well fracturing, and discloses a clustering selective firing bridge shooting combined operation perforating module. The perforating module comprises aplurality of perforators and a plurality of detonator bins, and the perforators and the detonator bins are sequentially connected in a staggered mode; each perforator comprises a perforator shell, abullet carrier, a bullet carrier positioning device, a bullet carrier supporting device and a detonating cord, each detonator bin comprises a detonator bin shell and a detonator, and a contact pin isarranged at one end of the detonator. The wire-free design of the whole perforating module is achieved through a disc-shaped contact, the bullet carrier positioning device, the bullet carrier supporting device and the contact pin, the step of connecting wires inside a perforator, between the perforator and the detonator and between the detonator and a through wire when the bridge shooting combinedoperation perforating module is assembled on site is omitted, then the operation steps are simplified, the assembling efficiency is improved, the safety of the whole process is guaranteed, a side hole is not needed, and therefore the sealing aging is improved.

Description

technical field [0001] The invention belongs to the field of fracturing of oil and gas wells, and relates to a perforation module used as a cluster-selective firing bridge jet coupler. Background technique [0002] With the development of oil and gas fields and the continuous depletion of energy sources, unconventional oil and gas such as shale gas, tight gas, and coalbed methane will become important substitutes for future oil and gas resources. However, due to the characteristics of low porosity and ultra-low permeability of unconventional oil and gas reservoirs, for this kind of unconventional oil and gas reservoirs, it is necessary to implement staged multi-stage fracturing stimulation measures to achieve productivity. Therefore, staged multi-stage fracturing is the first choice stage for unconventional oil and gas reservoir stimulation and effective increase of single well production, and its role is becoming more and more obvious. [0003] Staged multi-stage fracturin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/116E21B43/118E21B43/119
CPCE21B43/116E21B43/11855E21B43/119
Inventor 李奔驰唐凯陆应辉陈锋任国辉陈建波张清彬罗苗壮赵昕迪杨登波李妍僖
Owner BC P INC CHINA NAT PETROLEUM CORP
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