Erosion test device capable of automatically controlling environment pressure, flow rate and sand content

Abstract

The invention discloses an erosion test device capable of automatically controlling an environment pressure, a flow rate and sand content. The erosion test device comprises a high-pressure pump, an abrasive supply system, an erosion test pressure chamber, a detritus chamber and a control system; a water outlet of the high-pressure pump is connected with an inlet of the abrasive supply system; andwater in the high-pressure pump and abrasive in an abrasive tank are mixed in a sand mixer, and sand-carrying fluid obtained after mixing enters a spray gun in the erosion test pressure chamber and then is sprayed out of a spray nozzle to carry out the erosion test on a test piece. The test fluid sprayed from the spray nozzle is converged in the pressure chamber and flows out through an automaticpressure regulation valve at the bottom so as to automatically regulate the environment pressure in the pressure chamber. Waste fluid after the test is collected in the detritus chamber, and the waterand the abrasive are separated. The separated water enters the high-pressure pump to be recycled, the separated abrasive is filled in the abrasive tank for continuous use. According to the invention,the erosion test under a high environment pressure and at a high flow rate can be carried out; in the experiment process, the environment pressure, the flow rate and the sand content can be accurately controlled; and the abrasive and the water can be recycled.

Description

technical field [0001] The invention relates to the technical field of test analysis, in particular to an erosion test device which can automatically control environmental pressure, flow velocity and sand content. Background technique [0002] During the development of oil and gas wells, most of the downhole tools will be eroded by solid particles, for example, the sand particles in the drilling fluid will erode the drilling tools; Erosion of oil production tools; gravel packing sand control and fracturing stimulation, high-speed gravel and fracturing proppant erosion of fracturing tools, etc. The erosion of downhole equipment has always been accompanied by the whole process of offshore oil exploitation, and the anti-erosion ability of tools has always been the focus of attention, which is a technical problem in the process of offshore oil development. In order to enhance the erosion resistance of downhole tools, most tools are strengthened. These treatment processes and me...

AI Technical Summary

Problems solved by technology

For example, the rotary erosion test device has the advantages of small investment and small footprint, but the disadvantage is that there is a large deviation from the flow in the real industry; the pipe flow erosion test device can only perform low environmental pressure, low flow rate, low Erosion test under the condition of sand ratio

[0004] In view of the characteristics of high environmental pressure, high erosion velocity and high sand ratio in marine engineering, the existing erosion test equipment cannot meet the requirements.

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