Patent
Joint seal gas plugging experimental simulation device and testing method
Han Zixuan,Chai Long,Li Daqi,Lin Yongxue,Chen Xiaofei,Hu Ziqiao,Tang Wenquan,Zhen Jianwu,Wang Xianguang,Gao Shuyang,He Zhong +10 more
- 14 Dec 2018
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TL;DR: In this paper, a joint seal gas plugging experimental simulation device and a testing method for simulating petroleum and natural gas drilling is presented for safe drilling of carbonate rock strata and shale strata with micro-fractures.
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Abstract: The invention relates to a joint seal gas plugging experimental simulation device and a testing method in the field of experimental devices for simulating petroleum and natural gas drilling. The jointseal gas blocking experimental simulation device comprises a micro-fracture core, a micro-fracture plugging test system, and a gas pressure bearing test system. According to the device provided by the invention, plugging evaluation experiments can be carried out on a core containing a single or combined micro-fractures under experimental conditions with different circulating flow rates, pressuredifferences, temperature and the like, the leakage amounts of different drilling fluids to micro-fractures with different fracture openings are analyzed and compared, the plugging characteristics of various drilling fluids are researched, the characteristics of an underground micro-fracture gas invasion shaft are simulated at the same time, the gas bearing capacity and gas flow rate of a pluggingcore are tested, the joint seal gas plugging effect of the drilling fluids for plugging micro-fractures is evaluated, and a new evaluation experimental research method is provided for safe drilling ofmicro-fracture carbonate rock strata and shale strata with micro-fractures.
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Citations
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Li Jun,Zhang Ruiyao,Zhang Hui,Luo Kuidong,Reyu Gao +4 more
- 20 Aug 2019
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TL;DR: In this paper, a high-temperature and high-pressure plugging/sticking preventing simulation evaluation device and method is proposed. But the authors do not provide a detailed description of the simulation.
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Patent
Pressure bearing and leakage blocking tester
Shuangjun Zhou,Yuke Tang,Xiandong Zhou,Lu Zhang,Haitao Wang +4 more
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TL;DR: In this article, the authors proposed a pressure bearing and leakage blocking tester, which consists of a crack simulation device, a buffering drainage device and a recovery device, where the pressure bearing device, the crack simulator, the buffering drain and the recovery device are fixedly connected together in sequence and are communicated.
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Sealing agent shutoff collimated light source device in fractured reservoir
Hou Jiali,Deng Mingyi,Zou Kai,Liu Yangyang,Zhao Yang +4 more
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TL;DR: In this article, a sealing agent shutoff collimated light source device in a fractured reservoir mainly comprises stock solution room, charge door, infusion pump, inner tube, outer tube, loop exit, rock core holder, trapped pressure pump, temperature control system, and beaker.
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Experimental device for lost circulation material abrasion and corresponding blocking layer performance variation under simulation well
Wang Limin,Kang Yili,Zhang Dujie,Xu Chengyuan,Lin Chong +4 more
- 05 Apr 2017
TL;DR: In this paper, an experimental device for lost circulation material abrasion and corresponding blocking layer performance variation under simulation well mainly comprises storage tank, water injection pump, simulation drilling rod, the cauldron body, rock core, simulation well, temperature controller, the piece of heating, switch, flowing back bucket, blocking layer formation device, graduated flask, nitrogen cylinder.
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Patent
Plugging reverse pressure measuring device
Cai Lishan,Ren Liwei,Yang Xiaohua,Lin Yongxue,Wang Lin,Dong Xiaoqiang,Wang Haibo +6 more
- 14 Jan 2015
TL;DR: In this article, the authors proposed a plugging reverse pressure measuring device, which consists of a support frame, a pressure cylinder and a to-be-measured plugging layer.
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