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Automatic sand discharging and removing device for shale gas well

A technology for shale gas wells and de-sanders, which is used in wellbore/well components, production fluids, and earth-moving drilling, etc., can solve the problems of wasting manpower, sand cannot be removed in time, and the life of sand discharge control valves is short, etc. Longevity, manpower saving, impact reduction effect

Pending Publication Date: 2022-05-17
重庆非常规油气研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an automatic sand removal device for shale gas wells to solve the problems of wasting manpower, sand particles cannot be removed in time and the life of the sand discharge control valve is extremely short in the above background technology

Method used

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  • Automatic sand discharging and removing device for shale gas well
  • Automatic sand discharging and removing device for shale gas well
  • Automatic sand discharging and removing device for shale gas well

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] An automatic desand removal device for shale gas wells, including a separation component, a sand outlet, a water outlet and a feed end are installed on the separation component, the feed end is used for inputting a mixture of water, gas and sand particles, and the separation component is used for Separate the mixture of water vapor and sand particles, so that the mixture of water vapor and sand particles is separated into water vapor and sand particles, the water outlet end is used to discharge water vapor, and the sand outlet end is used to discharge sand particles;

[0034] A valve assembly is installed at the outlet of the sand discharge end, and a detection assembly is installed on the sand discharge end. When the height of the sand surface inside the sand discharge end reaches the maximum height of the detection assembly, the detection assembly triggers the valve assembly, the valve assembly opens, and the sand discharge end When the sand is discharged, when the hei...

Embodiment 2

[0037] An automatic desand removal device for shale gas wells, including a separation component, a sand outlet, a water outlet and a feed end are installed on the separation component, the feed end is used for inputting a mixture of water, gas and sand particles, and the separation component is used for Separate the mixture of water vapor and sand particles, so that the mixture of water vapor and sand particles is separated into water vapor and sand particles, the water outlet end is used to discharge water vapor, and the sand outlet end is used to discharge sand particles;

[0038] A valve assembly is installed at the outlet of the sand discharge end, and a detection assembly is installed on the sand discharge end. When the height of the sand surface inside the sand discharge end reaches the maximum height of the detection assembly, the detection assembly triggers the valve assembly, the valve assembly opens, and the sand discharge end When the sand is discharged, when the hei...

Embodiment 3

[0043] An automatic desand removal device for shale gas wells, including a separation component, a sand outlet, a water outlet and a feed end are installed on the separation component, the feed end is used for inputting a mixture of water, gas and sand particles, and the separation component is used for Separate the mixture of water vapor and sand particles, so that the mixture of water vapor and sand particles is separated into water vapor and sand particles, the water outlet end is used to discharge water vapor, and the sand outlet end is used to discharge sand particles;

[0044] A valve assembly is installed at the outlet of the sand discharge end, and a detection assembly is installed on the sand discharge end. When the height of the sand surface inside the sand discharge end reaches the maximum height of the detection assembly, the detection assembly triggers the valve assembly, the valve assembly opens, and the sand discharge end When the sand is discharged, when the hei...

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Abstract

The invention belongs to the technical field of shale gas well sand removers, and discloses a shale gas well automatic sand discharging and removing device which comprises a separation assembly, a sand outlet end, a water outlet end and a feeding end are installed on the separation assembly, the feeding end is used for inputting a mixture of water vapor and sand grains, and the separation assembly is used for separating the mixture of the water vapor and the sand grains. The water outlet end is used for discharging the water vapor, the sand outlet end is used for discharging the sand grains, and a valve assembly is installed at the discharging position of the sand outlet end. The sand level surface in the sand setting cylinder is detected through the sand level instrument, and after the sand level surface reaches the highest detection position of the sand level instrument, the sand discharging control valve is opened, so that sand is automatically discharged. A worker is prevented from regularly opening the sand discharging control valve according to experience, so that manpower is greatly saved; the sand grains are discharged in time, so that the sand grains are prevented from entering the separator along with gas and water, and the stable operation of the subsequent process is ensured.

Description

technical field [0001] The invention belongs to the technical field of sand removers for shale gas wells, in particular to an automatic sand remover for shale gas wells. Background technique [0002] Shale gas refers to organic matter-rich, mature dark mud shale or high-carbon mud shale, which has a certain commercial value due to the adsorption of organic matter or the existence of fractures and matrix pores in the rock, so that it is stored and preserved. , natural gas of pyrolysis origin and mixed origin of the two, shale gas is unconventional natural gas that occurs in organic-rich shale-based reservoir rock series. It is a continuously generated biochemical gas, thermogenic gas or a mixture of the two. It can exist in natural cracks and pores in a free state, exist in kerogen and clay particle surfaces in an adsorbed state, and store a very small amount in cheese in a dissolved state. In the roots and asphaltene, the proportion of free gas is generally 20% to 85%. Duri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/34
CPCE21B43/35
Inventor 潘军梅永贵贾映友邓洪军胡春礼王亮
Owner 重庆非常规油气研究院有限公司
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