Shock-wave fracture forming device and system

A shock wave and fracture-making technology, which is used in the production of fluids, wellbore/well components, and earth-moving drilling, etc., can solve the problems of poor pressure controllability, damage to casing, and inability to guarantee the completeness of gunpowder combustion, so as to reduce the pressure drop. Funnel, the effect of improving permeability

Inactive Publication Date: 2017-05-31
北京百恒达石油技术有限公司 +1
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Problems solved by technology

The disadvantage is that the controllability of the pressure generated is poor, the casing may be damaged, and the completeness of the gunpowder combustion cannot be guaranteed

Method used

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  • Shock-wave fracture forming device and system
  • Shock-wave fracture forming device and system
  • Shock-wave fracture forming device and system

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Embodiment Construction

[0022] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. 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.

[0023] like Figure 1-3 As shown, the embodiment of the present invention provides a shock wave fracture-making device, including a ground control terminal, a perforating cable 2 and a high-energy shock wave generator 3, and the high-energy shock wave generator is used to be driven by the perforating cable 2 along the oil well. Lowered to underground operations. ...

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Abstract

The invention discloses a shock-wave fracture forming device and system. The device includes a ground control terminal, a perforation cable and a high-energy shock wave generator, wherein the control terminal is connected with a shell of the high-energy shock wave generator through the perforation cable, and a cable core body of the perforation cable is connected with a energy storage component of the high-energy shock wave generator. According to the shock-wave fracture forming device and system, high-voltage strong-current electric energy is released instantly in a liquid environment of an oil well, high-temperature plasmas can be generated, are spread in the radial direction in a high-pressure shock wave form and act on oil layers through perforation tunnels of the oil well, a large number of fractures free of crustal-stress control are formed near wellbore areas, at the same time, various pollution blockages near the perforation tunnels are cleaned away. The permeability near the wellbore areas is greatly improved, the pressure conductive ability is reduced, crude oil smoothly flows into a wellbore, and the production increase of the oil well and the injection increase of a water well are achieved.

Description

technical field [0001] The invention relates to the technical field of oil exploitation, more specifically to a shock wave seam-making device and system. Background technique [0002] Most oilfields in my country have entered the middle and late stage of development. During the long-term exploitation, post-operation and water injection, due to the migration of solid particles, the precipitation of waxy components in crude oil, and the time of drilling, completion and post-operation The external pollution usually causes serious blockage near the wellbore, and the pressure drop funnel is greatly increased, making it difficult or impossible for oil flow to flow into the wellbore, and it becomes a low-production well or a production stop well. At present, my country's oilfields have such problems to varying degrees, which has become the biggest confusion in oilfield development and enhanced oil recovery. [0003] The methods commonly used in oil fields to increase production and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/26E21B43/11E21B31/00
CPCE21B43/26E21B31/00E21B43/11
Inventor 陈广强戴晓璐
Owner 北京百恒达石油技术有限公司
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