公开(公告)号：US20210040373A1

公开(公告)日：2021-02-11

申请号：US16966870

申请日：2019-11-29

申请人： CHINA PETROLEUM & CHEMICAL CORPORATION ,  Sinopec Petroleum Engineering Technology Service Co., Ltd. ,  Drilling Engineering Echnology Research Institute of Sinopec Zhongyuan Petroleum Engineering Co., LT ,  SINOPEC ZHONGYUAN PETROLEUM ENGINEERING CO., LTD

发明人： Xiqiang SI ,  Zhonghua WANG ,  Weiting LI ,  Jun WEI ,  Zhongjin WANG ,  Yuebin LV

IPC分类号： C09K8/08 ,  C07H15/207

摘要： An aryl-substituted saccharide or glycoside or a mixture of a plurality of aryl-substituted saccharides or glycosides have at least good resistance to high temperatures and salt, and lower filtration loss. These aryl-substituted saccharide or glycoside are used in making a drilling fluid composition. The aryl-substituted saccharide or glycoside or the mixture of a plurality of aryl-substituted saccharides or glycosides each or in combination bears a substituent A and a substituent B, wherein the substituent A contains a unit —O—R6— in its structure and the substituent B contains a unit in its structure, and the substituents and the numbers are defined in the description.

公开(公告)号：US20210179913A1

公开(公告)日：2021-06-17

申请号：US16768639

申请日：2019-07-05

申请人： Sinopec Petroleum Engineering Technology Service Co., Ltd. ,  Drilling Engineering Echnology Research Institute of Sinopec Zhongyuan Petroleum Engineering Co., LT ,  Sinopec Zhongyuan Petroleum Engineering Co., LTD

发明人： Zhonghua WANG ,  Xiqiang Si

IPC分类号： C09K8/12 ,  C09K8/035 ,  C09K8/10 ,  C09K8/03

摘要： The present invention relates to substituted saccharides or glycosides and their use in drilling fluid compositions. The substituted saccharide or glycoside bears a substituent A, a substituent B and a substituent C, wherein the substituent A comprises in its structure a group the substituent B comprises in its structure a group and the substituent C comprises in its structure a unit —NH—R7—. The definition of each group is described in the description. The drilling fluid composition can show good temperature resistance, filtration loss reducing reduction property, pollution resistance, inhibition property, lubricating property or reservoir protection property, and has no biotoxicity.

公开(公告)号：US20240018275A1

公开(公告)日：2024-01-18

申请号：US18253874

申请日：2021-03-26

申请人： CHINA PETROLEUM & CHEMICAL CORPORATION ,  SINOPEC PETROLEUM ENGINEERING TECHNOLOGY SERVICE CO., LTD. ,  SINOPEC ZHONGYUAN PETROLEUM ENGINEERING CO., LTD ,  SINOPEC ZHONGYUAN PETROLEUM ENGINEERING CP., LTD

发明人： Xiqiang SI ,  Zhonghua WANG

IPC分类号： C08B37/00 ,  C08F251/00 ,  C09K8/24

CPC分类号： C08B37/0024 ,  C08F251/00 ,  C09K8/24

摘要： Substituted scleroglucans are produced and are used in the producing drilling fluid compositions. Each of the substituted scleroglucans and combination thereof have substituent A, substituent B and substituent C, and optionally each or in combination have substituent D and substituent E. Substituent A contains in its structure a unit —C(═O)—O—, substituent B contains a unit —C(═O)—NH—, substituent C contains a unit




substituent D contains an aryl group, and substituent E contains a siloxane group. The substituted scleroglucan shows tackifying performance under high temperature conditions and a reduced filtration loss.