Inventor

LI ZUOHUI

CN6 patents

⚠️ This page may combine multiple inventors who share the name “LI ZUOHUI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CHEN WEI

1 patent

US9598937B2Mar 21, 2017

Rotating magnetic field downhole power generation device

CHEN WEI11 citations80

CHINA PETROLEUM & CHEMICAL

1 patent

US9347297B2May 24, 2016

Downhole casing expansion tool and method of expanding casings using the same

CHINA PETROLEUM & CHEMICAL2 citations52

CHINA PETROLEUM & CHEM CORP

1 patent

US9927548B2Mar 27, 2018

Apparatus for well logging capable of forward investigation

CHINA PETROLEUM & CHEM CORP0 citations46

YANG JINZHOU

1 patent

US9377555B2Jun 28, 2016

Apparatus and method for well logging and data processing device

YANG JINZHOU0 citations40

SINOPEC OILFIELD SERVICE CORP

1 patent

US9938445B2Apr 10, 2018

Comb polymer, method of preparing the same, and use thereof

SINOPEC OILFIELD SERVICE CORP0 citations30

SINOPEC SHENGLI PETROLEUM ENGINEERING CO LTD DRILLING TECH RESEARCH INSTITUTE

1 patent

US10253568B2Apr 9, 2019

Push-the-bit rotary guiding device and application method thereof

SINOPEC SHENGLI PETROLEUM ENGINEERING CO LTD DRILLING TECH RESEARCH INSTITUTE0 citations29