China Petroleum & Chemical Corporation

Xuanzhu Pharma Co., Ltd.

Drilling Technology Research Institute of Sinopec Shengli Petroleum Engineering Co., Ltd.

Sinopec Shengli Petroleum Engineering Co., Ltd

Hisense Visual Technology Co., Ltd.

Kbp Biosciences Co., Ltd.

Sinopec Petroleum Engineering Technology Service Co., Ltd.

Sinopec Oilfield Service Corporation

Research Institute of Petroleum Engineering, Shengli Oil Field, Sinopec

Kbp Biosciences USA Inc.

Hui Zhang

Lei Zhang

Aichen Wang

Yanyan Dong

Xiaoming Shao

Yong Chen

Liang Sun

Guangqi Gao

Bin Wei

Zeng Fu

Minxuan Wang

Huihui Song

Zhengquan Cheng

Qiuhan Su

Rui Zhang

Qianwen Tang

Zongfeng Zhao

Zhonghua Wu

Chunxu Yang

Junjie Zhang

Chuanwei Zhao

Honglin Tang

Bo Kang

Zhihe Liu

Zhongshuai Chen

Xiliang Li

Zhenguo Su

Haoyu Sun

Huawen Shu

Huangang Zhu

Han Liu

Yongming Chen

Mingwei Fan

Yanjun Zhou

Xueliang Pei

Cunfang Hu

A positioning and orientating apparatus for branch well, which has an orientating coupling shaft; a hydraulic cylinder having a guiding sleeve; a setting unit having an anchoring mechanism and a sealing mechanism; a setting actuation unit, having a sealing cylinder, a piston, and a force transmitting cylinder, wherein an upper end of the force transmitting cylinder is fixedly connected to the piston, a sealing chamber in communication with the central flow channel is formed within the sealing cylinder, and the piston is configured to drive the force transmitting cylinder to move downwards when a pressure of the drilling fluid reaches a first pressure; and a releasing unit having a pressure-bearing cylinder, an elastic claw, and a ball seat. The elastic claw is separated from the slot by lifting up the releasing unit when the pressure of the drilling fluid reaches a second pressure, thus completing a releasing procedure.

Positioning and orientating apparatus for branch well, and positioning and orientating method

The present application discloses a display method and a display apparatus; and the display apparatus includes a controller configured to determine, on the basis of a schedule list and target program display information corresponding to a target EPG page, whether there is a schedule conflict; if there is a schedule conflict, determining a specified channel and specified time period corresponding to the schedule conflict; obtaining a specified schedule identifier corresponding to the specified channel in the specified time period, and displaying the specified schedule identifier on specified program information.

Display method and display apparatus

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.

Flow splitting device for gas reverse circulation drilling

Gel ice hat

Picnic backpack

An apparatus for tripping oil pipe and a system for automatic well workover comprises an elevator transfer device for transferring an elevator connected with an oil pipe, the elevator transfer device being structured for enabling continuous, automatic tripping operations of the oil pipe. The elevator transfer device comprises a lifting assembly used for lifting and releasing an oil pipe engaged with the elevator, and an elevator transport assembly used for transferring an elevator at a wellhead and/or an elevator on the lifting assembly. The apparatus for tripping oil pipe can lower the labor intensity and improve operation safety.

Apparatus for tripping oil pipe and system for automatic well workover

The present invention relates to a fused ring-containing oxazolidinone compound shown by general formula (I), a pharmaceutically acceptable salt thereof and a stereoisomer thereof, wherein R, R, R, R, R, R, A, B and C are as defined in the description. The present invention further relates to a method for preparing the compound, a pharmaceutical composition and a pharmaceutical formulation comprising the compound, and a use of the compound for the manufacture of a medicament for the treatment and/or prevention of infectious diseases and a use for the treatment and/or prevention of infectious diseases. 

Fused ring-containing oxazolidinones antibiotics

The present invention relates to 9-aminomethyl substituted tetracycline compounds represented by formula (I), or pharmaceutically acceptable salt, prodrug, solvate or isomer thereof, as well as a method for preparing these compounds and a pharmaceutical composition comprising the same. The present invention relates also to a use of these compounds in the preparation of a medicament for the treatment and/or prophylaxis of tetracycline drug-sensitive disease. wherein, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, Rand Rare each independently as defined in the description.

9-aminomethyl substituted tetracycline compounds

The present invention relates to a 1,4-dihydropyridine-3,5-dicarboxylate compound of general compound (I), a process for preparing the same, a use thereof for the manufacture of a medicament for treating and/or preventing kidney injury, cardiovascular diseases and/or endocrine diseases, as well as a pharmaceutical composition and a pharmaceutical formulation containing said compounds, wherein the definitions of R, R, R, R, R, R, R, R, m, n, n, p and q are the same as those defined in the description. 

1,4-dihydropyridine-3,5-dicarboxylate derivatives and preparation and use thereof

Growing community of inventors

Shandong, China

Hui Zhang