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公开(公告)号:US20200239760A1
公开(公告)日:2020-07-30
申请号:US16752971
申请日:2020-01-27
发明人: Chengwen Wang , Yucheng Xue , Wei Zhou , Ruihe Wang , Jinsheng Sun , Yong Li , Changqiang Tang
IPC分类号: C09K8/467 , C08F220/58 , C04B24/16 , C04B28/02 , C04B40/00 , C04B103/22
摘要: The present disclosure relates to a high-temperature retarder suitable for oil and gas well cementation, a preparation method thereof and a cementing slurry.
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公开(公告)号:US10655048B1
公开(公告)日:2020-05-19
申请号:US16275997
申请日:2019-02-14
发明人: Chengwen Wang , Huan Wang , Zizhen Wang , Yucheng Xue , Ruihe Wang , Xin Chen , Wenfei Li
IPC分类号: C09K8/467 , C08F220/56 , C04B24/16 , C08F220/58 , C08F28/02 , C09K8/42 , C08F26/02 , C08F226/02
摘要: An oil well cement settlement stabilizer is ternary cement settlement stabilizer or quaternary cement settlement stabilizer; wherein the quaternary cement settlement stabilizer containing structural units A represented by formula (I), structural units B represented by formula (II), structural units C represented by formula (III), and structural units D represented by formula (IV); Wherein the ternary cement settlement stabilizer containing structural units A represented by formula (I), structural units B represented by formula (II), and structural units D represented by formula (IV);
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公开(公告)号:US10858571B2
公开(公告)日:2020-12-08
申请号:US16752971
申请日:2020-01-27
发明人: Chengwen Wang , Yucheng Xue , Wei Zhou , Ruihe Wang , Jinsheng Sun , Yong Li , Changqiang Tang
IPC分类号: C09K8/467 , C04B28/02 , C04B40/00 , C04B24/16 , C08F220/58 , C04B103/22
摘要: The present disclosure relates to a high-temperature retarder suitable for oil and gas well cementation, a preparation method thereof and a cementing slurry.
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公开(公告)号:US09624420B1
公开(公告)日:2017-04-18
申请号:US15296908
申请日:2016-10-18
发明人: Chengwen Wang , Ruihe Wang , Baojiang Sun , Weidong Zhou
IPC分类号: C04B7/00 , C04B16/00 , C04B24/00 , C09K8/487 , C04B24/12 , C04B38/10 , C04B24/26 , C04B24/16 , C04B24/18 , B01F17/00 , C04B103/48 , C04B103/40 , C04B103/20 , C04B103/46
CPC分类号: C09K8/487 , C04B24/124 , C04B24/166 , C04B24/18 , C04B24/2623 , C04B28/02 , C04B38/10 , C04B40/0039 , C04B2103/20 , C04B2103/408 , C04B2103/46 , C04B2103/48 , C09K8/473 , C04B22/12 , C04B24/10 , C04B24/121 , C04B24/123
摘要: The present invention relates to the field of oil and natural gas well cementation engineering, in particular to a foam stabilizer composition, foamed cement slurry and an additive composition thereof. The foam stabilizer composition comprises C6-C20 alkyl amido alkyl amine oxide, C6-C20 alkyl amido alkyl betaine, and triterpenoid saponin compound. The foam stabilizer composition provided in the present invention is helpful for forming foamed cement slurry that has high foam stability, and the foam stabilizer composition can work with other active components in the foamed slurry additive composition provided in the present invention to enable the foamed cement slurry that contains the additive composition to obtain low density, high foam stability, low permeability, and high compressive strength, which is especially applicable to well cementing operation in an oil and natural gas exploration and development process.
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