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Shale Gas Well Sand Water Discharge Plunger

A technology for shale gas wells and plungers, which is applied to wellbore/well components, production fluids, and earth-moving drilling, etc., can solve the problems of difficult operation, high cost, and high risk.

Active Publication Date: 2021-04-13
YANGTZE UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the above-mentioned technical deficiencies, provide a shale gas well sand and water discharge plunger, solve the problems of high cost, difficult operation, large manpower consumption, and pressurized sand and water devices in the prior art. Operation, technical problems such as low safety factor and high risk

Method used

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  • Shale Gas Well Sand Water Discharge Plunger
  • Shale Gas Well Sand Water Discharge Plunger
  • Shale Gas Well Sand Water Discharge Plunger

Examples

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Embodiment 1

[0036] In order to solve the technical problems such as high cost, difficult operation, large manpower consumption, pressure operation, low safety factor and high risk in the sand water device in the prior art. Embodiment 1 of the present invention provides a shale gas well sand water discharge plunger, such as Figure 1 to Figure 7 As shown, it includes a main shaft 1 , a horizontal blade assembly 2 , a blade opening sleeve 3 , a blade closing sleeve 4 and a longitudinal blade assembly 5 .

[0037] Among them, such as figure 2 with image 3 As shown, the main shaft 1 is hollow, and the inside of the rod body is provided with a first cavity 11 axially communicated with the lower end and a second cavity 12 axially communicated with the upper end.

[0038] Such as figure 1 As shown, the upper end of the main shaft 1 is provided with a horizontal and coaxially arranged circular centering disc 6, and a central shaft sleeve 61 extends downward from the centering disc 6 along it...

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Abstract

The invention discloses a shale gas well sand and water discharge plunger, which comprises a main shaft, a horizontal blade assembly, a blade opening sleeve, a blade closing sleeve and a longitudinal blade assembly; Upwelling power, the upwelling power of the gas drives the vertical fan assembly to mix the sand and water at the bottom of the well and stir it up to the top of the horizontal fan assembly, and then uses the plunger to collide with the bottom of the shale gas well to make the fan blade Close the shaft sleeve to form the sealing surface formed by the horizontal fan blade, and under the push of the gas, the sand and water discharge plunger of the shale gas well will move upward as a whole, and the sand and water brought up by the sealing surface of the horizontal fan blade will flow from the sand at the shale wellhead. The water discharge channel flows out, and then the plunger is used to collide with the top of the shale gas well to make the fan blade open the bushing to open the horizontal fan blade again, so that the sand water at the bottom of the shale gas well is continuously discharged upwards.

Description

technical field [0001] The invention relates to the technical field of shale gas production and exploitation, in particular to a plunger device for discharging sand and water in shale gas wells. Background technique [0002] With the changes in the global energy structure, the development of new energy sources such as shale gas is increasing, and a series of problems that follow also need to be solved urgently. During the exploitation of shale gas, some sand and water are blocked in the pipeline, which hinders the accumulation of gas and even blocks the escape of gas, greatly reducing the rate of shale gas collection. Traditional devices cannot solve the problem of water and sand clogging pipelines. Serious problems may even lead to the shutdown of shale gas wells. At present, if mining encounters blockages, coiled tubing sand washing is usually used to solve the problem, but the cost of sand washing is expensive and the cycle is long, and the operation under pressure is no...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/02E21B43/00
CPCE21B43/00E21B43/02
Inventor 钱玉宝凌振芳严梁柱杨青华刘梓鹏桂志伟鲁郑
Owner YANGTZE UNIVERSITY