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公开(公告)号：US11946334B2
公开(公告)日：2024-04-02
申请号：US17913075
申请日：2020-09-30
申请人： CHINA PETROLEUM & CHEMICAL CORPORATION , SINOPEC PETROLEUM ENGINEERING TECHNOLOGY SERVICE CO., LTD , SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD , DRILLING TECHNOLOGY RESEARCH INSTITUTE OF SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD
发明人： Chuanwei Zhao , Zhonghua Wu , Yanjun Zhou , Honglin Tang , Zhihe Liu , Xueliang Pei , Haoyu Sun , Zhenguo Su , Bo Kang , Hui Zhang , Huangang Zhu , Yongming Chen , Zhongshuai Chen
IPC分类号： E21B21/16 , E21B21/12 , E21B33/128
CPC分类号： E21B33/128 , E21B21/12 , E21B21/16
摘要： A flow splitting device for gas reverse circulation drilling, including: an upper joint for connecting with a double-wall drill pipe; an inner tube which is arranged in the upper joint and defines a first passageway in communication with an inner chamber of the double-wall drill pipe, a second passageway in communication with an annular space in the double-wall drill pipe formed between the inner tube and the upper joint; a lower joint, having an upper end fixedly connected with the upper joint and a lower end for connecting with a drill tool; and a flow guiding member provided between the upper joint and the lower joint. A flexible sealing mechanism is provided outside the upper joint. The flexible sealing mechanism extends radially outward relative to the upper joint and the lower joint to form a sealing contact with a wellbore wall.
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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.-
3.发明授权公开(公告)号：US11952530B2
公开(公告)日：2024-04-09
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 Technology Research Inst. of Sinopec Zhongyuan Petroleum Engineering Co., LTD , 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
CPC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：US20220243540A1
公开(公告)日：2022-08-04
申请号：US17618008
申请日：2020-06-10
申请人： SINOPEC PETROLEUM ENGINEERING TECHNOLOGY SERVICE CO., LTD , SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD , DRILLING TECHNOLOGY RESEARCH INSTITUTE OF SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD
发明人： Huangang ZHU , Jiancheng LI , Haoyu SUN , Qiang CAO , Yong CHEN , Dejing YANG , Zongqing LI , Chang WANG , Rongrong SONG , Ping XU
摘要： A double-channel fluid injection apparatus includes a main shaft, a bearing box, and a sealing box. The main shaft includes an outer tube and an inner tube. An internal channel of the inner tube and a vertical through channel constitute a first fluid passageway. The inner tube and the outer tube form an annular gap, and a channel D is radially formed at a lower part of the outer tube and is in communication with the annular gap, thus constituting a second fluid passageway. The bearing box is mounted on a boss of the outer tube. The sealing box includes a sealing cylinder fixedly connected to a lower end of a lower end cap of the bearing box. A channel E in communication with the second fluid passageway is radially formed at a position of the sealing cylinder corresponding to the channel of the outer tube.
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5.发明申请公开(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.
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公开(公告)号：US12049792B2
公开(公告)日：2024-07-30
申请号：US17618008
申请日：2020-06-10
申请人： SINOPEC PETROLEUM ENGINEERING TECHNOLOGY SERVICE CO., LTD , SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD , DRILLING TECHNOLOGY RESEARCH INSTITUTE OF SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD
发明人： Huangang Zhu , Jiancheng Li , Haoyu Sun , Qiang Cao , Yong Chen , Dejing Yang , Zongqing Li , Chang Wang , Rongrong Song , Ping Xu
IPC分类号： E21B17/18 , E21B21/14 , E21B33/03 , E21B33/068
CPC分类号： E21B17/18 , E21B21/14 , E21B33/03 , E21B33/068
摘要： A double-channel fluid injection apparatus includes a main shaft, a bearing box, and a sealing box. The main shaft includes an outer tube and an inner tube. An internal channel of the inner tube and a vertical through channel constitute a first fluid passageway. The inner tube and the outer tube form an annular gap, and a channel D is radially formed at a lower part of the outer tube and is in communication with the annular gap, thus constituting a second fluid passageway. The bearing box is mounted on a boss of the outer tube. The sealing box includes a sealing cylinder fixedly connected to a lower end of a lower end cap of the bearing box. A channel E in communication with the second fluid passageway is radially formed at a position of the sealing cylinder corresponding to the channel of the outer tube.
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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
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.
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公开(公告)号：US20230393300A1
公开(公告)日：2023-12-07
申请号：US18249155
申请日：2021-10-15
申请人： CHINA PETROLEUM & CHEMICAL CORPORATION , SINOPEC PETROLEUM ENGINEERING TECHNOLOGY SERVICE CO., LTD , SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD , SINOPEC MATRIX CORPORATION , GEOSTEERING & LOGGING RESEARCH INSTITUTE, SINOPEC MATRIX CORPORATION
发明人： Luyang DING , Ningning YANG , Haiquan TANG , Zhen YANG , Nan LIN , Mingquan HUANG , Qinglong LIU , Quanjin YANG , Xiaolin ZHANG , Zhiyong ZHANG , Chuntian HAN , Hai MA , Xiaohui CUI , Chao LU , Xin CHENG
摘要： A multi-sector data correction method for gamma imaging while drilling includes the steps of: (a) dividing each gamma imaging sector into a plurality of counting zones; (b) counting a number of valid counting pulses for each counting zone at a predetermined time interval during MWD; (c) constructing a plurality of measurement vectors based on a value of recording times of each counting zone; (d) establishing a correction matrix with a conditional number less than a set value through an optimization algorithm; and (e) calculating a gamma intensity of each measured sector with the plurality of measurement vectors and the correction matrix as constructed, so as to complete the correction on the measurement data of each measured sector for each predetermined time interval. This method eliminate problems such as rotational measurement distortion of the gamma imaging while drilling tool and improve the accuracy of calculating the formation dip angle.
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公开(公告)号：US20230383605A1
公开(公告)日：2023-11-30
申请号：US18248907
申请日：2021-10-15
申请人： China Petroleum & Chemical Corporation , Sinopec Petroleum Engineering Technology Service Co., Ltd , Sinopec Shengli Petroleum Engineering Co., Ltd , Sinopec Matrix Corporation , Geosteering & Logging Research Institute, Sinopec Matrix Corporation
发明人： Qingming MA , Jieran ZHU , Ningning YANG , Guangquan LI , Yufeng LI , Nan LIN , Haiquan TANG , Haiyang DU , Chao LU
IPC分类号： E21B7/06 , E21B47/022 , E21B17/05 , E21B41/00
CPC分类号： E21B7/067 , E21B47/022 , E21B17/05 , E21B41/0085
摘要： A steerable drilling device has an outer tube extending along a longitudinal axis; a drill bit joint inserted into said outer tube, a lower end of said drill bit joint extending out of a lower end of said outer tube for connection to a drill bit; a joint drive mechanism, provided in said outer tube and configured to drive said drill bit joint to swing relative to the longitudinal axis; and a lower connection mechanism. The lower connection mechanism has a connection body connected to said joint drive mechanism in such a manner that said joint drive mechanism is non-rotatable with respect to said connection body, a first centralizer arranged between said connection body and said outer tube, a circuit system arranged in said connection body and configured to provide an electrical signal to said joint driving mechanism, and an attitude sensor arranged in said connection body.
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公开(公告)号：US11713409B2
公开(公告)日：2023-08-01
申请号：US16768639
申请日：2019-07-05
申请人： China Petroleum & Chemical Corporation , Sinopec Petroleum Engineering Technology Service Co., Ltd. , Drilling Engineering Technology Research Inst. of Sinopec Zhongyuan Petroleum Engineering Co., LTD , Sinopec Zhongyuan Petroleum Engineering Co., LTD
发明人： Zhonghua Wang , Xiqiang Si
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.
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