Turbine-driven circumferential sliding sleeve type pulse generation tool

A pulse generation and sliding sleeve technology, applied in the field of hydraulic fracturing tools, can solve the problems of poor reliability and easy clogging of the pressurization mechanism, and achieve the effect of good sealing reliability, not easy to clog, and good stability

Active Publication Date: 2020-12-04
YANGTZE UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, it is necessary to provide a turbine-driven circumferential sliding sleeve type pulse generating tool to s

Method used

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  • Turbine-driven circumferential sliding sleeve type pulse generation tool
  • Turbine-driven circumferential sliding sleeve type pulse generation tool
  • Turbine-driven circumferential sliding sleeve type pulse generation tool

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Embodiment Construction

[0019] 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.

[0020] Please refer to Figure 1-Figure 6 , the present invention provides a turbine-driven circumferential sliding sleeve pulse generating tool, including a housing 1 , a turbine mechanism 2 , a transmission mechanism 3 and a check valve 4 .

[0021] Please refer to figure 1 with figure 2 , the housing 1 has a cylindrical airtight cavity, the housing 1 has a female button end processed with a female button 111, and the side wall of the housing 1 is provided with a hole communicating with the cavity. 121 of the perforations.

[0022] Please refer to figure 1 with figure 2 , the turbo m...

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Abstract

The invention discloses a turbine-driven circumferential sliding sleeve type pulse generation tool. The turbine-driven circumferential sliding sleeve type pulse generation tool comprises a shell, a turbine mechanism, a transmission mechanism, a frequency modulation mechanism, a pressurization mechanism and a check valve, wherein a pulse perforation is formed in the side wall of the shell; the turbine mechanism comprises a turbofan, and the turbofan comprises blades; the transmission mechanism comprises a driving sleeve, a frequency modulation gear body and a driven sleeve, the driving sleeve is arranged in a lower cavity and is coaxially arranged with the shell, the driving sleeve is rotationally connected with the shell, one end of the driving sleeve is fixedly connected with the blades,the frequency modulation gear body is connected with the driving sleeve, and the driven sleeve is connected with the frequency modulation gear body; and the check valve is arranged in the cavity and is used for preventing high-pressure fluid from flowing back. According to the technical scheme, the turbine-driven circumferential sliding sleeve type pulse generation tool has the beneficial effectsthat the frequency modulation gear body is adopted to adjust the hydraulic pulse frequency, hydraulic pressurization is realized through a mechanical spring, moreover, turbine driving is adopted, a tool flow passing channel is not prone to being blocked, and the complete reliability is good.

Description

technical field [0001] The invention relates to the technical field of hydraulic fracturing tools, in particular to a turbine-driven circumferential sliding sleeve type pulse generating tool. Background technique [0002] Low-porosity and low-permeability oil and gas reservoirs have low natural productivity. Except for a few fractured zones that have high natural productivity, they generally require manual fracturing before they have commercial value. At present, the commonly used reservoir fracturing technologies include hydraulic Fracturing, LPG anhydrous fracturing, high-energy gas fracturing, supercritical carbon dioxide fracturing, etc. Among them, hydraulic fracturing is the most important method for reservoir permeability enhancement. [0003] The purpose of hydraulic fracturing is to destroy rocks through hydraulic energy. Usually, the load loading method is different, and the degree of difficulty of material damage is also different. In addition to the hydrostatic l...

Claims

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Application Information

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IPC IPC(8): E21B43/26E21B28/00F01D15/00
CPCE21B43/26E21B28/00F01D15/00
Inventor 魏凯严梁柱易思琦梁旭
Owner YANGTZE UNIVERSITY
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