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CNPC XIBU DRILLING ENG CO LTD

Overview
  • Total Patents
    158
  • GoodIP Patent Rank
    10,386
  • Filing trend
    ⇧ 181.0%
About

CNPC XIBU DRILLING ENG CO LTD has a total of 158 patent applications. It increased the IP activity by 181.0%. Its first patent ever was published in 2010. It filed its patents most often in China and United States. Its main competitors in its focus markets civil engineering, basic materials chemistry and mechanical elements are WILD WELL CONTROL INC, PUBLICHNOE AKTSIONERNOE OBSHCHESTVO TATNEFT IMENI V D SHASHINA and ENFRAC INC.

Patent filings in countries

World map showing CNPC XIBU DRILLING ENG CO LTDs patent filings in countries
# Country Total Patents
#1 China 156
#2 United States 2

Patent filings per year

Chart showing CNPC XIBU DRILLING ENG CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Li Xiaojun 33
#2 Li Fuqiang 33
#3 Zhang Shengpeng 30
#4 Zhang Xin 28
#5 Wang Feiyue 22
#6 Zhao Jibin 20
#7 Li Yonglong 17
#8 Lu Ming 17
#9 Guo Xinchao 17
#10 Zhang Junfeng 16

Latest patents

Publication Filing date Title
CN112063375A High-temperature-resistant high-density oil-based well completion fluid and preparation method thereof
CN110863165A Self-polishing anti-corrosion and anti-scale coating and preparation method thereof
CN110846009A Borehole strengthening plugging agent and preparation method thereof
CN110925425A Up-down floating sealing tool
CN111021947A Rotary impact tool
CN111021939A Circumferential impact assembly
CN111305748A Circumferential impact drilling speed-up tool
CN110748338A Bidirectional communication power short joint
CN110847834A Method for controlling bottom hole pressure stability in process of replacing rotary assembly
CN110905415A Full-dimensional impact drilling speed-increasing tool
CN110886585A Automatic throttle control device for back pressure compensation in drilling operation and use method thereof
CN110905916A PDC bearing for rotary guide and vertical drilling tool
CN110911906A Elastic pin inserting device for drilling equipment
CN110910094A Oil field construction site information management system and method
CN110821483A Drill column radial coupling micro-relay transmission device for while-drilling geological guide system
CN110700767A Mechanical hydraulic coupling speed-raising device
CN110593823A Uninterrupted plunger water drainage gas production device and uninterrupted plunger water drainage gas production method
CN110578480A Reliable hydraulic centralizer
CN110513076A The solvable bridge plug of pressure break metal sealing
CN110595817A Downhole tool rotation condition simulation platform