Anti-erosion sand blasting perforation tool
A technology of sand blasting perforation and anti-erosion, which is applied in the direction of mining fluid, wellbore/well components, earthwork drilling and production, etc. It can solve the problems of perforator structure wear and other problems, so as to speed up the construction progress, avoid wear and erosion, The effect of avoiding damage
Active Publication Date: 2021-06-22
YANGTZE UNIVERSITY
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Problems solved by technology
[0005]
In view of this, it is necessary to provide an anti-erosion sandblasting perforation tool to solve the problem that the sand-water mixture sprayed by the sandblasting perforator is mixed on the ground and then sprayed out from the perforator, causing damage to the perforator. The problem of internal structure wear
Method used
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[0032] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and together with the embodiments of the present invention are used to explain the principle of the present invention and are not intended to limit the scope of the present invention.
[0033] combine figure 1 and Figure 4 As shown, taking water-based mixing as an example, the embodiment of the present invention provides an anti-erosion sandblasting perforating tool, including a casing 1, four mixing components 2 nested and installed on the casing 1, and sleeved on the casing 1. The protective cover 4 in the casing 1 and the four sandblasting perforating guns 3 sleeved in the protective cover 4 .
[0034] The casing 1 is preferably a steel casing. The shell 1 is a columnar structure, and the cross-section of the shell 1 of the columnar structure can be set as a circle, or...
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The invention relates to an anti-erosion sand blasting perforation tool. The anti-erosion sand blasting perforation tool comprises a shell, at least one mixing component, at least one sand blasting perforation gun and a protective sleeve. At least one mounting hole is formed in the side wall of the shell; the mixing components are in one-to-one correspondence with the mounting holes; each mixing component is in a barrel shape, one end of each mixing component is an inlet, and the other end of each mixing component is an outlet; at least one sand outlet groove is formed in the side wall of each mixing component in the circumferential direction; the sand blasting perforation guns are located in the shell and used for pressurizing water into high-pressure water to be sprayed into the mixing components; the protective sleeve is located in the shell and arranged on the outer sides of the sand blasting perforation guns in a sleeving manner; a cavity is formed between the protective sleeve and the shell and used for containing sand; and the sand contained in the cavity falls into the mixing components from the sand outlet grooves. By means of the anti-erosion sand blasting perforation tool, abrasion to the whole components in the sand and water mixing process can be reduced, and the service life is prolonged.
Description
technical field [0001] The invention relates to the technical field of perforation in oil exploitation, and more specifically, relates to an anti-erosion sandblasting perforation tool. Background technique [0002] With the development of oil and gas fields and the continuous depletion of energy, unconventional oil and gas will become an important substitute for future oil and gas energy. Unconventional oil and gas reservoirs are characterized by thin, tight, low porosity, and low permeability, and require large-scale and fine reconstruction. [0003] Hydraulic sandblasting perforation technology is a technology different from traditional energy-concentrated perforation reservoir stimulation. This technology has the advantages of simple process and low cost, and has wide adaptability. It has been widely used in oil and gas field development. [0004] The principle of perforating with the existing sandblasting perforating gun is: sand and water are mixed on the ground and th...
Claims
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Login to View More IPC IPC(8): E21B43/114
CPCE21B43/114Y02P70/10
Inventor 严梁柱方琼瑶
Owner YANGTZE UNIVERSITY