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公开(公告)号：US11559711B2
公开(公告)日：2023-01-24
申请号：US16490728
申请日：2018-02-26
申请人： CHINA PETROLEUM & CHEMICAL CORPORATION , CHINA PETROLEUM & CHEMICAL CORPORATION QINGDAO RESEARCH INSTITUTE OF SAFETY ENGINEERING
发明人： Shanjun Mu , Chunming Jiang , Weihua Zhang , Quanzhen Liu , Xuqing Lang , Xiaodong Mu , Lin Wang , Jingfeng Wu , Longmei Tan , Zuzheng Shang , Rifeng Zhou , Jianxiang Li , Hui Yu
IPC分类号： A62C5/00 , A62C5/02 , B01F23/235 , B01F25/313 , B01F25/31 , B01F27/112 , A62C3/06
摘要： A foam production method includes mixing liquid nitrogen with a foaming material to produce foam. A gas is produced in situ from liquid nitrogen. As the ratio of the volume of the gas produced by gasification of liquid nitrogen to the volume of the liquid nitrogen is relatively high, when a large gas supply flow is needed to generate a large foam flow, a liquid nitrogen storage device of a small volume can be used instead of bulky air supply devices such as high-pressure gas cylinders, air compressors, air compressor sets and the like, reducing the volume of the air supply device. In addition, the liquid nitrogen used in foaming will release nitrogen gas after the foam blast, such that the nitrogen is also able to inhibit combustion on the surface of burning materials, accelerating the extinguishing of the fire.
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公开(公告)号：US11980785B2
公开(公告)日：2024-05-14
申请号：US18156435
申请日：2023-01-19
申请人： CHINA PETROLEUM & CHEMICAL CORPORATION , CHINA PETROLEUM & CHEMICAL CORPORATION QINGDAO RESEARCH INSTITUTE OF SAFETY ENGINEERING
发明人： Shanjun Mu , Chunming Jiang , Weihua Zhang , Quanzhen Liu , Xuqing Lang , Xiaodong Mu , Lin Wang , Jingfeng Wu , Longmei Tan , Zuzheng Shang , Rifeng Zhou , Jianxiang Li , Hui Yu
IPC分类号： B01F23/00 , A62C5/02 , B01F23/235 , B01F25/31 , B01F25/313 , B01F27/112 , A62C3/06
CPC分类号： A62C5/02 , B01F23/235 , B01F25/31112 , B01F25/31113 , B01F25/3131 , B01F27/112 , A62C3/065 , B01F2215/0422 , B01F2215/0427 , B01F2215/0431 , B01F2215/045 , B01F2215/0468 , B01F2215/0472
摘要： A foam production method includes mixing liquid nitrogen with a foaming material to produce foam. A gas is produced in situ from liquid nitrogen. As the ratio of the volume of the gas produced by gasification of liquid nitrogen to the volume of the liquid nitrogen is relatively high, when a large gas supply flow is needed to generate a large foam flow, a liquid nitrogen storage device of a small volume can be used instead of bulky air supply devices such as high-pressure gas cylinders, air compressors, air compressor sets and the like, reducing the volume of the air supply device. In addition, the liquid nitrogen used in foaming will release nitrogen gas after the foam blast, such that the nitrogen is also able to inhibit combustion on the surface of burning materials, accelerating the extinguishing of the fire.
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公开(公告)号：US11691119B2
公开(公告)日：2023-07-04
申请号：US16968785
申请日：2019-01-31
申请人： CHINA PETROLEUM & CHEMICAL CORPORATION , CHINA PETROLEUM & CHEMICAL CORPORATION QINGDAO RESEARCH INSTITUTE OF SAFETY ENGINEERING
发明人： Jing Zhang , Shanjun Mu , Wei Xu , Ning Shi , Shucai Zhang , Guosheng Dong , Tie Zhang , Lin Wang , Junpeng Ren , Feng Sun
CPC分类号： B01J19/088 , B01J19/2445 , C01B3/04 , C01B17/0495 , H05H1/2406 , B01J2219/00038 , B01J2219/0813 , B01J2219/0869 , B01J2219/0875 , B01J2219/0896 , H05H1/245 , H05H1/246
摘要： Described are a low temperature plasma reaction device and a hydrogen sulfide decomposition method. The reaction device includes: a first cavity; a second cavity, the second cavity being embedded inside or outside the first cavity; an inner electrode, the inner electrode being arranged in the first cavity; an outer electrode; and a barrier dielectric arranged between the outer electrode and the inner electrode. The hydrogen sulfide decomposition method includes: implementing dielectric barrier discharge at the outer electrode and the inner electrode of the low temperature plasma reaction device, introducing a raw material gas containing hydrogen sulfide into the first cavity to implement a hydrogen sulfide decomposition method, and continuously introducing a thermally conductive medium into the second cavity in order to control the temperature of the first cavity of the low temperature plasma reaction device.
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公开(公告)号：US10774257B2
公开(公告)日：2020-09-15
申请号：US16129177
申请日：2018-09-12
发明人： Yongxue Lin , Xiaohua Yang , Lin Wang , Jian He , Junbin Jin , Fan Yang , Haibo Wang
IPC分类号： C09K8/24 , C08F293/00 , C08F220/56
摘要： A random copolymer, a preparation method of the random copolymer, a drilling fluid containing the random copolymer. The random copolymer contains structural unit (A) represented by formula (1), structural unit (B) represented by formula (2), structural unit (C) represented by formula (3), and structural unit (D) represented by formula (4) or (5): wherein X is halogen. When the random copolymer is used as a filter loss reducer in a high-calcium drilling fluid, the filter loss of the high-calcium drilling fluid can be reduced.
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公开(公告)号：US10538484B1
公开(公告)日：2020-01-21
申请号：US16129285
申请日：2018-09-12
发明人： Xiaohua Yang , Yongxue Lin , Jian He , Lin Wang , Haibo Wang , Fan Yang , Zhoujun Li , Xiaoqiang Dong
IPC分类号： C07C235/28 , C07H5/04 , C07C231/02 , C07C309/21 , C07C309/29 , C07C235/30
摘要： A maleamic acid monomer, and a preparation method and a use of the maleamic acid monomer. The structural formula of the monomer is as follows: formula (1), wherein, R is selected from The maleamic acid monomer provided in the present invention may be used as a comonomer to prepare temperature-tolerant and calcium salt-tolerant polymers.
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公开(公告)号：US09243180B2
公开(公告)日：2016-01-26
申请号：US13628020
申请日：2012-09-26
发明人： Xiaohua Yang , Lin Wang , Yongxue Lin , Sheng Li , Long Chai , Xiaoqiang Dong
摘要： The present invention provides a filtration control agent and a drilling fluid containing the same. The filtration control agent comprises the product obtained from the reaction of water, lignite, aldehyde and sulfonate polymer at 180-220° C. and the units containing sulfonate groups in the molecular chains of sulfonate polymer are at least 30 wt %. The filtration control agent provided by the present invention features a good filtration loss reduction effect and a low viscosity effect and can improve the rheological behavior of the drilling fluid, thereby meeting the requirements of the drilling of deep wells, ultra-deep wells and ultra high pressure formations.
摘要翻译： 本发明提供一种过滤控制剂和含有该过滤控制剂的钻井液。 过滤控制剂包括在180-220℃下由水，褐煤，醛和磺酸盐聚合物的反应获得的产物和在磺酸聚合物的分子链中含有磺酸基的单元为至少30重量％。 本发明提供的过滤控制剂具有良好的过滤损失降低效果和低粘度效应，可以改善钻井液的流变行为，从而满足深井，超深井和超高深度钻井的要求 压力层。
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公开(公告)号：US20130079257A1
公开(公告)日：2013-03-28
申请号：US13628017
申请日：2012-09-26
发明人： Yongxue Lin , Xiaohua Yang , Lin Wang , Lishan Cai , Xiaoqiang Dong , Long Chai
CPC分类号： C09K8/035
摘要： The present invention provides a dispersant and a drilling fluid containing the dispersant. The dispersant comprises the product obtained from the reaction of water, lignin, phenol, sulfonating agent, telogen and catalyst at 140-220° C., preferably at 160-180° C.; the catalyst is one or more selected from the group consisting of sulfamic acid, p-toluenesulfonic acid and benzenesulfonic acid. The dispersant provided by the present invention not only can significantly lower the viscosity of the drilling fluid but also plays a role in reducing filtration loss.
摘要翻译： 本发明提供了含有分散剂的分散剂和钻井液。 分散剂包括在140-220℃，优选在160-180℃下由水，木质素，苯酚，磺化剂，脱水剂和催化剂的反应获得的产物。 催化剂是选自氨基磺酸，对甲苯磺酸和苯磺酸中的一种或多种。 本发明提供的分散剂不仅可显着降低钻井液的粘度，而且还可降低过滤损失。
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