Pressure testing machine for propping agent test

Abstract

The invention belongs to the technical field of detection equipment for an oil field, and particularly relates to a pressure testing machine for a propping agent test. The pressure testing machine comprises a main engine frame (1), wherein a transmission system (2) is arranged on the main engine frame (1); the transmission system (2) comprises a motor (201) which is connected with a synchronous gear; the synchronous gear is connected with a speed reducer (205); the speed reducer (205) is connected with a lead screw assembly; the lead screw assembly is connected with a cross beam adjusting mechanism (3); a pressing plate assembly (4) is arranged on the cross beam adjusting mechanism (3). The pressure testing machine has the advantages that the transmission is reasonable, the adjustment is convenient, and the machine is suitable for various tests on a propping agent.

Description

technical field [0001] The invention belongs to the technical field of testing equipment for oil fields, and in particular relates to a pressure testing machine for proppant testing. Background technique [0002] Petroleum proppant is also known as petroleum fracturing proppant. During oil and gas deep well mining, high closure pressure and low permeability deposits are treated by fracturing, so that oil and gas-bearing rock formations are cracked, and oil and gas are collected from the channels formed by the cracks. At this time, it is necessary to inject fluid into the rock base to generate cracks in the rock formations around the wellbore under pressure exceeding the fracture strength of the formation, forming a channel with high-level flow capability. In order to keep the fractures formed after fracturing open and oil and gas products to pass through smoothly, petroleum proppant is usually used to enter the formation with high-pressure solution to fill in the formation f...

AI Technical Summary

Problems solved by technology

Among them, the electronic pressure testing machine below 30 tons can only test the proppant resistance to crushing ability, and cannot meet the force value requirements of the conductivity test.

Therefore, this model does not have universal features, and can only be used as a special model for proppant resistance to crushing.

Although the 80-ton hydraulic pressure testing machine can meet the test of proppant resistance to crushing ability and flow conductivity, but because the upper platen is fixed, it is necessary to increase or decrease the pads according to the test device of different heights when doing different tests, which increases the test preparation time. , aggravating the work intensity of the test personnel; secondly, the hydraulic source has the disadvantages of high noise, difficulty in maintaining the cleanliness of the test environment, and high maintenance cost of hydraulic components; thirdly, the pressing plate assembly of the existing 80-ton press uses a ball head pressing plate, The structure of the ball seat and hanging plate is too flexible, which leads to inaccurate values ​​of the broken rate reported by customers after use

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