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Pulse horizontal well volume fracturing device and horizontal well volume fracturing method

A technology for volume fracturing and horizontal wells, which is applied in wellbore/well components, production fluid, earthwork drilling and production, etc. It can solve problems such as unreasonable matching of hydraulic energy at the bottom of the well, inaccurate positioning of injectors, etc., and achieve high perforation efficiency. Efficiency, compact structure, reasonable structure and effective

Active Publication Date: 2022-06-07
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology

[0003] The present invention provides a volumetric fracturing device for pulsed horizontal wells and a volumetric fracturing method for horizontal wells, which overcomes the deficiencies of the prior art and can effectively solve the problem of unreasonable bottom-hole hydraulic energy matching, inaccurate injector positioning, and traditional volumetric fracturing. The relatively limited problem of fracturing reform method

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  • Pulse horizontal well volume fracturing device and horizontal well volume fracturing method
  • Pulse horizontal well volume fracturing device and horizontal well volume fracturing method

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Embodiment Construction

[0024] The present invention is not limited by the following examples, and specific implementations can be determined according to the technical solutions and actual conditions of the present invention.

[0025] In the present invention, for the convenience of description, the description of the relative positional relationship of each component is based on the appendix of the description. figure 1 For example, the positional relationship of front, rear, top, bottom, left and right is determined according to the layout direction of the drawings in the description.

[0026]Below in conjunction with embodiment and accompanying drawing, the present invention is further described:

[0027] as attached figure 1 , 2 As shown, the pulsed horizontal well volume fracturing device includes a coiled tubing 37, and the horizontal section of the coiled tubing 37 is sequentially connected with a connector 38, a motor head assembly 39, a centralizer 40, a pulse tool capable of generating h...

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Abstract

The invention relates to the technical field of oil and gas field exploitation, and relates to a volumetric fracturing device for pulsed horizontal wells and a volumetric fracturing method for horizontal wells. The former includes a coiled tubing, and a connector, a motor head assembly, and a centralizer are sequentially connected to the horizontal section of the coiled tubing. A device, a pulse tool capable of generating high-pressure fluid, an injector, a locator and a guide shoe; the latter includes the following steps: (1) Drill down and determine the perforation position. The invention has a reasonable and compact structure and is easy to use. With such a setting, it can be quickly disassembled and assembled, and the construction cost can be reduced. The pulse fluid can be generated through the pulse tool, and the pulse fluid can improve the perforation efficiency and enhance the volumetric fracturing process through the nozzle. The generation of micro-fractures in the perforation hole can also realize the increase of energy in the perforation hole, rapid formation cracking, lower construction pressure, and solve the problem of traditional volume fracturing stimulation methods for the stimulation of the target layer when the formation fracture pressure is high. limited problem.

Description

technical field [0001] The invention relates to the technical field of oil and gas field exploitation, and relates to a pulse horizontal well volume fracturing device and a horizontal well volume fracturing method. Background technique [0002] With the popularization and application of coiled tubing downhole operation technology, more and more coiled tubing is used in oil and gas field downhole operation. To meet the needs of on-site refined operations, one of the important reasons is the low utilization rate of the fluid pressure energy pumped into the surface. Increasing the bottom hole hydraulic energy or improving its utilization rate is of great significance to improving the operation efficiency and effect. At present, the main way to generate bottom-hole fluid pulse pressure is to use a special structure to realize the fluid resistance change or periodic vibration at the bottom of the hole, but it cannot fully solve the problem of unreasonable bottom-hole hydraulic en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/26E21B43/267E21B43/114
CPCE21B43/26E21B43/267E21B43/114Y02E10/10
Inventor 艾白布·阿不力米提郭新维刘洪雷白华明陈波王肖伟吴月忠
Owner BC P INC CHINA NAT PETROLEUM CORP
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