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Oil well flow back liquid sand removing device

A technology for oil wells and feed chambers, which is used in wellbore/well components, production fluids, earth-moving drilling, etc. Lightening, improving production efficiency, and good corrosion resistance

Inactive Publication Date: 2018-09-21
陈琪峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem mainly solved by the present invention: Aiming at the recycling of domestic grit chambers, the labor intensity is high, the equipment covers a large area, and it will especially cause environmental pollution, and the sand particles will cause serious wear to the inner wall of the cyclone. The present invention provides An oil well reverse drainage fluid sand removal device

Method used

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  • Oil well flow back liquid sand removing device

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Experimental program
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Effect test

Embodiment Construction

[0020] First, the material liquid with sand is poured into the filter desanding device, and through the filtering effect of the hole tube 3 and the filter element 4, the large sand particles are first intercepted and deposited on the filter screen to form a filter cake, and the filter cake is then finer in the liquid phase. The suspended solid phase particles are intercepted, filtered to remove large sand particles, and then enter the feed chamber 2, and the impeller 6 is driven to rotate by the input kinetic energy of the external motor through the cyclone, thereby driving the liquid to change from static to rotary motion, so that the liquid rotates to generate powerful The centrifugal force, the rotating liquid moves down along the shell of the cyclone, so that the liquid obtains a certain static pressure, the liquid flow inside forms a three-dimensional spiral flow, the outer side is the outer swirling flow down the wall, and the inner side It is an upward internal swirl flo...

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Abstract

The invention relates to an oil well flow back liquid sand removing device, and belongs to the technical field of oil field machinery. The invention develops the novel flow back liquid sand removing device which integrates the functions of sedimentation, filtration and sand recovery, the device can recover all fracturing flow back liquid, crude oil and sand in the field, so that recovered liquid can be reused, the intensity of a sand removing process is reduced, the production efficiency is improved to the largest extent, and energy saving and environmental protection are achieved; a lining adopts a polyurethane wear-resistant composite material grinding machine lining plate, and has the elasticity of a rubber-like substance and the characteristics of a rigid lining plate, in addition, thewear resistance of the lining is high, corrosion resistance is good, so that the composite material lining plate has unique wear properties, a combination mode of static and dynamic rotational flow sand catchers is formed, wear-resistant polyurethane is used as the lining material, an automatic control system is adopted, and the device has the advantages of wide adaptability, high sand washing efficiency, strong wear resistance and the like, and is of great significance for thickened oil sand removal and sump oil recovery.

Description

technical field [0001] The invention relates to an oil well reverse drainage fluid sand removing device, which belongs to the technical field of oil field machinery. Background technique [0002] Fracturing technology is a major technological measure for oil and gas well stimulation, and it is widely used in various oil fields. With the popularization of technologies such as horizontal well staged fracturing reconstruction and volume fracturing, the scale of fracturing operations has continued to expand. Each well produces about 1000m after fracturing 3 These flowback liquids contain a large amount of biological glue, sand, petroleum and other chemical additives, which have the characteristics of high pollutant concentration and scattered pollution sources. If the flowback liquid is not properly treated and discharged, it will cause serious pollution to the surrounding environment and surface water system, especially in the water-scarce northwest region where water pressur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/26E21B41/00
CPCE21B43/26E21B41/005
Inventor 陈琪峰王文新史玉玲
Owner 陈琪峰
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