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Experimental device for simulating erosion and wear of ball-pitching sleeve

A ball-throwing sliding sleeve and experimental device technology, applied in measuring devices, testing wear resistance, instruments, etc., can solve the problems of seat seal failure, erosion and wear of downhole hydraulic sandblasting tools, etc., and achieve the effect of controllable experimental parameters

Active Publication Date: 2018-03-27
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Description
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Problems solved by technology

[0003] In order to improve the fracturing efficiency of shale gas, high pressure, long period, and high sand ratio concentration are effective measures in fracturing operations, but at the same time, they will also cause erosion and wear to the downhole hydraulic sandblasting tools, and more seriously, it will cause fracturing. Seat seal failure during cracking

Method used

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  • Experimental device for simulating erosion and wear of ball-pitching sleeve
  • Experimental device for simulating erosion and wear of ball-pitching sleeve
  • Experimental device for simulating erosion and wear of ball-pitching sleeve

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Embodiment Construction

[0033] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

[0034] Such as figure 1 As shown, the present invention proposes an experimental device 100 for simulating the erosion and wear of a pitching sleeve. The experimental device 100 includes a mortar heating and mixing device 1, a mortar circulation system 2, a power system 3, a visual specimen erosion chamber 4, and a data Processing system 5; the mortar heating and mixing device 1 includes a barrel body 11 with a hollow interlayer 111, the interlayer 111 of the barrel body is provided with a heat-conducting medium (heat-conducting oil or water), and the heat-conducting medium is heated by an electric heater 12; The barrel body 11 is equipped with mortar and is provided with a mortar inlet 112 and a mortar outlet 113, and the barrel...

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Abstract

The invention provides an experimental device for simulating erosion wear of a ball injection sliding sleeve. The experimental device comprises a mortar heating and mixing device, a mortar circulation system, a power system, a visual test piece erosion chamber and a data processing system. By means of the experimental device for simulating the erosion wear of the ball injection sliding sleeve, the erosion wear situation of the ball injection sliding sleeve in multistage fracturing operation of a horizontal well can be visually observed, and the erosion wear situations of the ball injection sliding sleeve under the conditions of different erosion velocities, erosion distances and erosion medium temperatures and different erosion particle sizes can be simulated. The experimental device for simulating the erosion wear of the ball injection sliding sleeve has the advantages that stability and reliability are achieved, various experimental parameters are controllable, and actual working conditions on actual site can be simulated in a laboratory.

Description

technical field [0001] The invention relates to an experimental device for simulating the erosion and wear of a ball-pitching sleeve under multi-stage fracturing operation conditions of a horizontal well, in particular to a simulated ball-pitching sleeve capable of visually observing and adjusting the temperature of the erosion environment Experimental setup for erosion wear. Background technique [0002] Hydraulic sandblasting fracturing is an important technology to ensure the production of shale gas. It refers to a method of using hydraulic force to form cracks in oil and gas layers during oil or gas recovery, also known as hydraulic fracturing. The fracturing process of the oil and gas layer is to use a fracturing truck to squeeze a high-pressure, large-displacement liquid with a certain viscosity into the oil layer. After pressing out many cracks in the oil layer, add proppant (such as: quartz sand, etc.) Permeability to increase water injection (water injection wells)...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/56
CPCG01N3/567
Inventor 郭岩宝郭浩王德国范肖玉周永杰刘书海
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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