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Electro-hydraulic integrated switch and application thereof

An electro-hydraulic and switch technology, which is applied in the direction of mining fluid, drill pipe, casing, etc., can solve the problems of high power and difficult switch adjustment, and achieve the effect of high power and difficult switch adjustment

Pending Publication Date: 2022-05-13
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hydraulic-electric integrated switch of the present invention adopts a control motor to adjust the direction of the liquid path, and adopts a hydraulic method to drive the sliding sleeve switch, which has a large power and can solve the problem of difficult adjustment of the switch

Method used

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  • Electro-hydraulic integrated switch and application thereof
  • Electro-hydraulic integrated switch and application thereof
  • Electro-hydraulic integrated switch and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] like figure 1 As shown, the electro-hydraulic integrated switch includes a lower joint 201, a spring seat 202, a lower spring 203, a bearing 204, a rail fixing sleeve 205, a rail pin 206, a rail sleeve 207, a lower connecting sleeve 208, a rubber ring 1 209, and an intermediate connecting sleeve 210, oil production outer hole 211, sliding sleeve 212, upper connecting sleeve 213, copper ring 214, polytetrafluoroethylene 215, rubber ring 2 216, inner connecting rod 217, washer 218, upper spring 219, outer jacket 220, piston 221, upper Connector 222, gear ring 223, hydraulic control connector 224, variable center sleeve 1 225, quick connector 1 226, connecting nipple 1 227, large screw plug 228, support sleeve 229, small screw plug 230, sealing system 231, mandrel 232 , main body 233, pin 234, motor 235, control circuit board 236, cable connector 237, connecting nipple 2 238, quick connector 2 239, variable center sleeve 2 240, the lower joint 201 is provided with a step i...

Embodiment 2

[0055] like Figure 7 As shown, the 7in cased well layered sand control layered oil production string includes a plug 1, an electro-hydraulic integrated switch 2, a sand filter pipe 3, a through-type sealing plug 4, a sand control layered packer 5, and a sand control sleeve Pipe 6, oil production pipe 7, positioner 8, armored cable 9, hydraulic control pipeline 10, electric pump unit 11, electric pump strengthening device 12, power cable 13;

[0056] The sand control casing 6, the sand control layered packer 5 and the sand filter pipe 3 form a sand control string on the outer wall, the plug 1, the electro-hydraulic integrated switch 2, the through-type sealing plug 4, the hydraulic control pipeline 10, Armored cable 9, oil production tubing 7, positioner 8, electric pump unit 11, electric pump strengthening device 12, and power cable 13 form the internal oil production string. For each oil layer, the sand filter pipe 3 is aligned with each oil layer, the sand control casing 6...

Embodiment 3

[0059] The method of using the 7in cased well layered sand control layered oil production string described in Example 2 to perform oil recovery: send instructions through the ground control center and supply power to the motor 235 to push the mandrel 232 to move, and when it is necessary to provide the electro-hydraulic integration of the control layer When the switch is pressed, push the mandrel to Figure 5The first position in the pressure position is the pressure position. At this time, the pressure joints 2334 and 2334a are unblocked. Then, according to the size of the dispensing volume, the pressure is controlled through the hydraulic control pipeline. When a certain pressure is reached, the upper spring 219 and the lower spring 203 are compressed to continue to improve pressure, the track sleeve 207 moves on the track fixed sleeve 205, thereby driving the sliding sleeve 212 to move up and down. Since the sliding sleeve is provided with multiple injection holes of differe...

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Abstract

The invention relates to a device for layered exploitation of an oil well, in particular to an electro-hydraulic integrated switch and application thereof. The electro-hydraulic integrated switch comprises a lower connector, a spring seat, a lower spring, a bearing, a track fixing sleeve, a track pin, a track sleeve, a lower connecting sleeve, a rubber ring 1, a copper ring, polytetrafluoroethylene, a rubber ring 2, a middle connecting sleeve, an oil extraction outer hole, a sliding sleeve, an upper connecting sleeve, an inner connecting rod, a gasket, an upper spring, an outer sleeve, a piston, an upper connector, a baffle ring, a hydraulic control connector, a variable center sleeve 1, a quick connector 1 and a connecting short section 1. The device comprises a large screwed plug, a supporting sleeve, a small screwed plug, a sealing system, a mandrel, a body, a pin, a motor, a control circuit board, a cable connector, a connecting short section 2, a quick connector 2 and a variable center sleeve 2. According to the electro-hydraulic integrated switch, the control motor is adopted to adjust the liquid path direction, the sliding sleeve switch is driven in a hydraulic mode, power is large, and the problem that the switch is difficult to adjust can be solved.

Description

technical field [0001] The invention relates to a device for oil well delamination, in particular to an electro-hydraulic integrated switch and its application. Background technique [0002] Shengli Offshore Oilfield has a long oil layer well section, multiple sub-layers are co-produced, the average number of co-produced layers is 4.8 layers, and the permeability difference is 3.4. After long-term water injection production, the interlayer interference has been further aggravated. According to the control methods, foreign layered oil recovery technologies are divided into four types: hydraulic control, electric control, electric-hydraulic integrated control and wireless pressure pulse control. Among them, hydraulic control and electric control are mature systems in foreign countries. Domestic offshore oil fields are also equipped with hydraulic control and electronic control layered oil recovery methods. However, this series of technologies mostly use Y-shaped joints, equi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B34/06E21B34/08E21B17/02E21B43/14E21B43/12
CPCE21B34/066E21B34/08E21B17/02E21B43/14E21B43/128
Inventor 任从坤黄辉才刘艳霞周景彩张剑顾国利曾凡春王昕蔡增田石琼高峰
Owner CHINA PETROLEUM & CHEM CORP
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