Patents Assigned to SINOPEC PETROLEUM ENGINEERING TECHNOLOGY SERVICE CO., LTD
  • Patent number: 12252986
    Abstract: 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.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: March 18, 2025
    Assignees: 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
    Inventors: Qingming Ma, Jieran Zhu, Ningning Yang, Guangquan Li, Yufeng Li, Nan Lin, Haiquan Tang, Haiyang Du, Chao Lu
  • Patent number: 12049792
    Abstract: 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.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: July 30, 2024
    Assignees: SINOPEC PETROLEUM ENGINEERING TECHNOLOGY SERVICE CO., LTD., SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD., DRILLING TECHNOLOGY RESEARCH INSTITUTE OF SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD.
    Inventors: Huangang Zhu, Jiancheng Li, Haoyu Sun, Qiang Cao, Yong Chen, Dejing Yang, Zongqing Li, Chang Wang, Rongrong Song, Ping Xu
  • Patent number: 11952530
    Abstract: 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.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: April 9, 2024
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, Sinopec Petroleum Engineering Technology Service Co., Ltd., Drilling Engineering Technology Research Institute of Sinopec Zhongyuan Petroleum Engineering Co., LTD, SINOPEC ZHONGYUAN PETROLEUM ENGINEERING CO., LTD
    Inventors: Xiqiang Si, Zhonghua Wang, Weiting Li, Jun Wei, Zhongjin Wang, Yuebin Lv
  • Patent number: 11946334
    Abstract: 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.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: April 2, 2024
    Assignees: 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
    Inventors: 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
  • Patent number: 11713409
    Abstract: 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.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: August 1, 2023
    Assignees: China Petroleum & Chemical Corporation, Sinopec Petroleum Engineering Technology Service Co., Ltd., Drilling Engineering Technology Research Inst. of Sinopec Zhongyuan Petroleum Engineering Co., LTD
    Inventors: Zhonghua Wang, Xiqiang Si
  • Publication number: 20230147453
    Abstract: 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.
    Type: Application
    Filed: September 30, 2020
    Publication date: May 11, 2023
    Applicants: 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
    Inventors: 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
  • Publication number: 20220243540
    Abstract: 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.
    Type: Application
    Filed: June 10, 2020
    Publication date: August 4, 2022
    Applicants: SINOPEC PETROLEUM ENGINEERING TECHNOLOGY SERVICE CO., LTD, SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD, DRILLING TECHNOLOGY RESEARCH INSTITUTE OF SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD
    Inventors: Huangang ZHU, Jiancheng LI, Haoyu SUN, Qiang CAO, Yong CHEN, Dejing YANG, Zongqing LI, Chang WANG, Rongrong SONG, Ping XU