A test hydraulic fracturing injection pipe
A technology of hydraulic fracturing and injection pipe, which is applied in the direction of wellbore/well components, measurement, production fluid, etc., and can solve the problem of low accuracy of hydraulic pressure test
Inactive Publication Date: 2021-04-23
BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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Problems solved by technology
[0005] The embodiment of the present invention provides a test hydraulic fracturing injection pipe to solve the problem that the existing hydraulic fracturing injection pipe adopts a single-stage nozzle and the accuracy of the hydraulic test is not high
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[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0029] In the description of the embodiments of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a A detachable connection, or an integral connection; it may be a mechani...
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The invention relates to the technical field of hydraulic fracturing testing, and provides a hydraulic fracturing injection pipe for testing, which includes a water injection pipe, a first hydraulic nozzle pipe, a diversion control pipe, and a second hydraulic nozzle pipe that are sequentially sealed and connected. There is a first nozzle in the pipe, and the second hydraulic nozzle is sealed at the end far away from the diversion control pipe. The second hydraulic nozzle is connected to the second nozzle. One end of the sealed diversion control tube close to the first hydraulic nozzle. The test hydraulic fracturing injection pipe provided by the present invention seals and connects the water injection pipe, the first hydraulic nozzle, the diversion control pipe and the second hydraulic nozzle to form a segmental pressure test piece, and utilizes the diversion control pipe The ball realizes the staged fracturing test, thereby simulating the staged hydraulic fracturing in the real test environment, thereby improving the accuracy of the hydraulic fracturing test, which is conducive to obtaining more accurate information on the actual measurement of cracks in concrete or rock formations, and improving oil and gas production efficiency.
Description
technical field [0001] The invention relates to the technical field of hydraulic fracturing testing, and more particularly relates to a test hydraulic fracturing injection pipe. Background technique [0002] In recent years, with the increasing demand for oil and gas, the continuous development of oil and gas is particularly important for the sustainable development of the economy and society, and its development and utilization technology has become a key topic of widespread concern in the academic and engineering circles. Hydraulic fracturing is a key technology for oil and gas development and utilization, and its related research is increasing day by day. The current hydraulic fracturing mainly adopts the method of volume fracturing. Volume fracturing technology can expand the scale of shale gas exploitation, restore or increase the production capacity of oil wells, thereby greatly improving economic benefits, and is of great significance to the development and utilizatio...
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IPC IPC(8): E21B43/26E21B47/00
CPCE21B43/26E21B47/00
Inventor 屈小磊戚承志马超孔令明
Owner BEIJING UNIV OF CIVIL ENG & ARCHITECTURE