Slickwater fracturing fluid friction testing device and testing method thereof

Abstract

The invention discloses a slickwater fracturing fluid friction testing device and a testing method thereof. The slickwater fracturing fluid friction testing device comprises a soup tank internally provided with a heating system. A temperature transmitter is installed in the tank. The soup tank is successively connected with a soup pump, an electro connecting pressure gauge, a pulse damper, a reducing valve, a pressure transmitter and a first valve through a pipeline, and is connected with a testing pipeline system. The flow-in and flow-out ends of the testing pipeline system are provided with pressure difference transmitters. The outlet end of the testing pipeline system is connected with the inlet end of a second valve, and the outlet end of the second valve is connected with the inlet end of a flowmeter, and is connected with the soup tank through a connecting pipeline. The testing fracturing fluid is injected into the soup tank, a corresponding valve in front of the testing pipeline is adjusted according to the selected testing pipeline, the corresponding valve in front of the needed testing pipeline is opened, and the testing valves of other pipelines are closed. The data under the different state environments is obtained. The slickwater fracturing fluid of the different proportions of drag reducers is configured for testing. The slickwater fracturing fluid friction testing device has the characteristics of simple structure, convenience and practicability.

Description

technical field [0001] The invention relates to the technical field of instruments and meters, in particular to a slick water fracturing fluid friction test device and a test method thereof. Background technique [0002] Hydraulic fracturing is a widely used oil and gas well stimulation measure. Hydraulic fracturing is to use a high-pressure pump on the ground to squeeze fracturing fluid into the oil layer through the wellbore. When the injection rate of the fracturing fluid exceeds the absorption capacity of the oil layer, a high pressure will be formed on the oil layer at the bottom of the well. When this pressure exceeds the rock fracture pressure of the oil layer near the bottom of the well, the oil layer will be pushed apart and fractures will be generated. With the massive exploitation of shale gas reservoirs, slick water fracturing fluid has the advantages of simple configuration, low damage, easy access to the formation to communicate with natural fractures, and for...

AI Technical Summary

Problems solved by technology

Chinese Patent Publication No.: CN105628557 provides a fracturing fluid friction testing device and testing method; it can simultaneously test multiple pipelines for easy comparison; it can perform comparisons under different flow rates and flow velocities; but each test pipeline All require the required instruments (transmitters, flow meters, etc.), the flow is regulated by the relief valve, and the adjustment effect is not accurate; the type and parameters of the required equipment are basically not given; there is no pressure to solve the pulsation, and the flow is stable; it cannot solve the temperature Impact on test results

Publication number: CN102661910A, provides an experimental device and working method for measuring the friction of fluid in fracturing fractures, mainly measures the friction in fracturing fractures, and gives the parameters of the fractures, which can be carried out with a single pipeline For comparison, but its test viscosity is below 50mpa.s, which is quite different from the viscosity of slick water fracturing fluid below 10mpa.s, and there is no flow adjustment device, so the influence of flow on friction cannot be measured

[0006] 2. Large fracturing fluid friction test device

Chinese Patent Publication No.: CN104007043 provides a large-scale multifunctional fracturing fluid experimental system. The system uses a lot of equipment and is relatively difficult to maintain. Moreover, the chemical liquid pump used is a screw pump, which is difficult to achieve high pressure, which is different from actual fracturing. The situation is quite different; publication number: CN104034630, provides a kind of fracturing fluid performance test system for the fracturing fluid of oil and gas reservoir geological transformation; Although these two kinds of testing devices can test the performance of multiple fracturing fluids, but There is no flow pulse slowing device, and the flow rate of the test pipeline is unstable, resulting in low measurement accuracy; publication number: CN20417652U, which provides a fracturing fluid performance test device, although this device has a shear module, which can test The performance of the fracturing fluid is high, but the selected power pump is a screw pump, which is difficult to achieve high pressure, which is quite different from the actual fracturing situation

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