Recovery system and method for shale gas flowback fracturing testing
A recovery system and shale gas technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, mining wastewater treatment, etc., can solve the problem of simultaneous recovery of fracturing fluid and natural gas, and the inability to meet the diverse needs of product treatment and other problems, to achieve the effect of high test operation efficiency, meeting diverse and comprehensive needs, and convenient disassembly and assembly
Active Publication Date: 2019-05-28
CHINA UNIV OF PETROLEUM (BEIJING) +1
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Problems solved by technology
[0004] However, the existing recovery methods for shale gas flowback fracturing tests cannot realize the simultaneous recovery of fracturing fluid and natural gas, and thus cannot meet the diverse needs of product treatment in shale gas flowback fracturing tests
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[0078] 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.
[0079] Embodiments of the present invention provide a specific implementation of a recovery system for shale gas flowback fracturing tests, see figure 1 , the recovery system for shale gas flowback fracturing test specifically includes the following contents:
[0080] A Christmas tree 1 arranged at the wellhead of a shale gas well, a dual recover...
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The invention provides a recovery system and method for a shale gas flowback fracture test. The recovery system comprises a Christmas tree, a dual-recovery subsystem, a sewage tank, a combustion tank,a liquid recovery tank and a gas recovery pipe network, wherein the Christmas tree is arranged on a wellhead of a shale gas well, and the input end of the dual-recovery subsystem is connected to theChristmas tree; all the output ends of the dual-recovery subsystem are respectively connected with the sewage tank, the combustion tank, the liquid recovery tank and the gas recovery pipe network; thedual-recovery subsystem is applied to the shale gas flowback fracture test to perform scrap capture, sand removing treatment, buffering, filtering and recovery treatment on liquid output by the Christmas tree; the dual-recovery subsystem can be simultaneously applied to the shale gas flowback fracture test to perform buffering, separation, sand removal and recovery treatment on gas output by theChristmas tree. The recovery system disclosed by the invention can achieve the purposes of simultaneously and efficiently recovering gas and liquid generated in the shale gas flowback fracture test and can meet diverse and comprehensive requirements for processing products in the shale gas flowback fracture test.
Description
technical field [0001] The invention relates to the technical field of shale gas exploitation, in particular to a recovery system and method for shale gas flowback fracturing tests. Background technique [0002] Shale gas is an ideal replacement energy source for conventional oil and gas, and has huge geological reserves. However, due to the low porosity and low permeability characteristics of shale gas reservoirs, it also brings huge technical challenges to the effective development of shale gas. Therefore, shale gas flowback fracturing testing (that is, shale gas well fracturing ground testing using shale gas horizontal well fracturing technology) has also become a necessary step in the early stage of shale gas exploitation. Generally, shale gas wells are exploited by horizontal well staged fracturing. For the shale gas well fracturing surface test process, it is required to be easy to disassemble, simple and reliable connection, short installation period of test process...
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IPC IPC(8): C02F9/02C02F103/10
CPCC02F1/001C02F1/38C02F2103/10
Inventor 李军韩烈祥柳贡慧潘登曾小军席岩宋学峰
Owner CHINA UNIV OF PETROLEUM (BEIJING)