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Split-body type under-shaft intelligent sliding sleeve switch

An intelligent sliding sleeve and split-type technology, which is applied in the direction of production fluid, borehole/well parts, borehole/well valve device, etc., can solve the problems of low fracturing efficiency, high construction pressure, complex downhole system, etc., and achieve The effect of reducing the intensity of construction work, preventing sand sticking and clogging, and preventing wear and consumption

Active Publication Date: 2018-12-21
哈尔滨艾拓普科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a split-type downhole intelligent sliding sleeve switch, which can solve the problem of complex downhole system, unsatisfactory plugging effect, non-repeatable switching of the sliding sleeve or any interval switch in the existing layered fracturing technology. Formation testing and production, combined production, formation pressure, tubing pressure and formation temperature cannot be monitored, as well as problems such as low fracturing efficiency and high construction pressure

Method used

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  • Split-body type under-shaft intelligent sliding sleeve switch
  • Split-body type under-shaft intelligent sliding sleeve switch
  • Split-body type under-shaft intelligent sliding sleeve switch

Examples

Experimental program
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Effect test

specific Embodiment approach 1

[0035] Combine below Figures 1 to 5 Describe this embodiment, a split-type downhole intelligent sliding sleeve switch, including a switch sliding sleeve 1, a measurement and control assembly 2, and a power supply assembly 3, and the switch sliding sleeve 1, measurement and control assembly 2, and power supply assembly 3 are fixedly connected in sequence , the switch sliding sleeve 1 includes a lower joint body 1-1, a sliding sleeve outer shell 1-2, a switch valve seat 1-3, a sliding sleeve valve core 1-4 and a drive installation sleeve connecting body 1-5; the lower The joint body 1-1, the outer casing of the sliding sleeve 1-2 and the connecting body 1-5 of the drive installation sleeve are fixedly connected in turn to form the switch sliding sleeve 1; the sliding sleeve valve core 1-4 is slidingly connected in the switching valve seat 1-3 ;The switch valve seat 1-3 is fixedly connected to the inner side of the outer casing of the sliding sleeve 1-2;

[0036] The measurement ...

specific Embodiment approach 2

[0041] Combine below Figures 1 to 5 This embodiment will be described. This embodiment will further describe the first embodiment. The outer casing oil hole 1-2-1 is provided on the side wall of the sliding sleeve outer casing 1-2, and the side wall of the switch valve seat 1-3 A valve seat oil hole 1-3-1 is arranged on the wall, and the outer casing oil hole 1-2-1 communicates with the valve seat oil hole 1-3-1. The oil hole 1-2-1 of the outer casing and the oil hole 1-3-1 of the valve seat are always in communication, and the sliding sleeve valve core 1-4 is driven by the driven valve 2-5 to slide in the switch valve seat 1-3. Make a linear motion to change the position of the sliding sleeve valve core 1-4 on the switch valve seat 1-3, thereby controlling whether the oil hole 1-2-1 of the outer casing and the oil hole 1-3-1 of the valve seat are connected with the outside.

specific Embodiment approach 3

[0042] Combine below Figures 1 to 5 Describe this embodiment, this embodiment will further explain the second embodiment, the slave valve oil passage I2-5-1 is formed between the slave valve lower sealing body 2-2 and the slave valve sealing body 2-3, The slave valve oil channel II2-5-2 is formed between the driven valve sealing body 2-3 and the driven valve upper sealing body 2-4, and the driven valve oil channel I2-5-1 is located at the 2-5, the driven valve oil passage II 2-5-2 is located at the right end of the driven valve 2-5, and the driven valve sealing body 2-3 is provided with a transition oil passage 2-3-1, The upper sealing body 2-4 of the driven valve is provided with a transition oil passage 2-4-1, and the left end of the transition oil passage 2-3-1 communicates with the driven valve oil passage I2-5-1. The right end of the transition oil passage 2-3-1 communicates with the transition oil passage 2-4-1, the upper sealing body 2-4 of the driven valve is provide...

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Abstract

The invention relates to a sliding sleeve, in particular to a split-body type under-shaft intelligent sliding sleeve switch. The sliding sleeve switch comprises a switch sliding sleeve, a detecting controlling assembly and a power supplying assembly, the switch sliding sleeve, the detecting controlling assembly and the power supplying assembly are sequentially and fixedly connected, the switchingsliding sleeve comprises a lower joint body, a sliding sleeve outer housing, a switch valve seat, a sliding valve core and a driving installing sleeve connecting body; the lower joint body, the sliding sleeve outer housing and the driving installing sleeve connecting body sequentially and fixedly form the switch sliding sleeve, the sliding sleeve valve core is slidably connected in the switch valve seat, and the switch valve seat is fixedly connected with the inner side of the sliding sleeve outer housing. By means of the sliding sleeve switch, the problems of complicated under-shaft system, poor blockage effect, the failing of repeated switching on and off of the sliding sleeve or the switching on and off of random sections, the failing of the completion of layered testing acquiring production and layer-combining production, the failing of monitoring stratum pressure, oil pipe pressure and stratum temperature, low fracturing efficiency, high construction pressure and the like can be solved.

Description

technical field [0001] The invention relates to a sliding sleeve, in particular to a split type underground intelligent sliding sleeve switch. Background technique [0002] With less and less medium and high permeability oil and gas fields put into development in my country, more and more low permeability oil fields, it is particularly important for the effective development of low permeability oil fields. Fracturing is an important technical measure for increasing production of oil and gas wells and increasing injection of water injection wells, and is one of the effective means for the reconstruction of ultra-low and low-permeability oil layers and the removal of plugging in medium- and high-permeability oil layers. All oil reservoirs are faced with the problems of many layers of oil and water wells, large spans, and large differences in physical properties. With the decline of formation pressure, the contradiction between oilfield layers increasingly restricts the product...

Claims

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Application Information

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IPC IPC(8): E21B34/06E21B43/26E21B47/06E21B47/07
CPCE21B34/066E21B43/26E21B47/06E21B47/07
Inventor 宋文平王俊松杨华喻晓林杨君杨国富
Owner 哈尔滨艾拓普科技有限公司