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Patents Grants
last 30 patents
Information
Patent Grant
Coring device
Patent number
12,235,194
Issue date
Feb 25, 2025
China Oilfield Services Limited
Zhibin Tian
G01 - MEASURING TESTING
Information
Patent Grant
Method and system for measuring composition and property of formati...
Patent number
12,188,919
Issue date
Jan 7, 2025
China Oilfield Services Limited
Youxiang Zuo
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Hydraulic power system for downhole device and downhole device
Patent number
12,025,159
Issue date
Jul 2, 2024
China Oilfield Services Limited
Zhibin Tian
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information
Patent Grant
Core detection device of coring instrument and spacer insertion device
Patent number
12,012,816
Issue date
Jun 18, 2024
China National Offshore Oil Corporation
Zhibin Tian
G01 - MEASURING TESTING
Information
Patent Grant
Integrated logging instrument for coring and sampling
Patent number
11,905,829
Issue date
Feb 20, 2024
China Oilfield Services Limited
Tao Lu
E21 - EARTH DRILLING MINING
Information
Patent Grant
Downhole oil level detection device
Patent number
11,788,405
Issue date
Oct 17, 2023
China Oilfield Services Limited
Zhibin Tian
E21 - EARTH DRILLING MINING
Information
Patent Grant
Core detection device of coring instrument
Patent number
11,739,603
Issue date
Aug 29, 2023
China National Offshore Oil Corporation
Zhibin Tian
E21 - EARTH DRILLING MINING
Information
Patent Grant
Connecting structure for drill collar of logging while drilling ins...
Patent number
11,624,244
Issue date
Apr 11, 2023
CHINA OILFIELD SERVICES, LIMITED
Yongren Feng
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Sampling-by-pushing system and setting method thereof
Patent number
11,072,981
Issue date
Jul 27, 2021
CHINA OILFIELD SERVICES, LIMITED
Minggao Zhou
E21 - EARTH DRILLING MINING
Information
Patent Grant
Horizontal-to-vertical drilling module for deep well
Patent number
11,028,658
Issue date
Jun 8, 2021
China National Offshore Oil Corporation
Yongren Feng
E21 - EARTH DRILLING MINING
Information
Patent Grant
Sidewall coring structure directly driven by an electric motor
Patent number
10,381,899
Issue date
Aug 13, 2019
China National Offshore Oil Corporation
Yongren Feng
E21 - EARTH DRILLING MINING
Information
Patent Grant
Wire follow-up protection structure of electric reducer
Patent number
10,236,667
Issue date
Mar 19, 2019
China National Offshore Oil Corporation
Yongren Feng
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
High-pressure fluid mixing pump control system and fluid suction co...
Patent number
10,208,736
Issue date
Feb 19, 2019
China National Offshore Oil Corporation
Yongren Feng
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
System for sampling from formation while drilling
Patent number
10,180,064
Issue date
Jan 15, 2019
China National Offshore Oil Corporation
Yongren Feng
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drilling type sidewall coring apparatus
Patent number
10,018,038
Issue date
Jul 10, 2018
China National Offshore Oil Corporation
Yongren Feng
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rock formation testing method and formation testing instrument
Patent number
9,988,899
Issue date
Jun 5, 2018
China National Offshore Oil Corporation
Yongren Feng
E21 - EARTH DRILLING MINING
Information
Patent Grant
Pup joint for releasing sidewall contact of stratigraphic test devi...
Patent number
9,982,816
Issue date
May 29, 2018
China National Offshore Oil Corporation
Xiaofei Qin
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
Core Detection Device of Coring Instrument and Spacer Insertion Device
Publication number
20230194388
Publication date
Jun 22, 2023
CHINA NATIONAL OFFSHORE OIL CORPORATION
Zhibin Tian
E21 - EARTH DRILLING MINING
Information
Patent Application
CORING DEVICE
Publication number
20220397491
Publication date
Dec 15, 2022
China Oilfield Services Limited
Zhibin Tian
G01 - MEASURING TESTING
Information
Patent Application
INTEGRATED LOGGING INSTRUMENT FOR CORING AND SAMPLING
Publication number
20220316290
Publication date
Oct 6, 2022
China Oilfield Services Limited
Tao LU
E21 - EARTH DRILLING MINING
Information
Patent Application
HYDRAULIC POWER SYSTEM FOR DOWNHOLE DEVICE AND DOWNHOLE DEVICE
Publication number
20220260094
Publication date
Aug 18, 2022
China Oilfield Services Limited
Zhibin TIAN
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information
Patent Application
DOWNHOLE OIL LEVEL DETECTION DEVICE
Publication number
20220154573
Publication date
May 19, 2022
China Oilfield Services Limited
Zhibin Tian
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD AND SYSTEM FOR MEASURING COMPOSITION AND PROPERTY OF FORMATI...
Publication number
20220155275
Publication date
May 19, 2022
China Oilfield Services Limited
Youxiang ZUO
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
CORE DETECTION DEVICE OF CORING INSTRUMENT
Publication number
20210285849
Publication date
Sep 16, 2021
CHINA NATIONAL OFFSHORE OIL CORPORATION
Zhibin Tian
G01 - MEASURING TESTING
Information
Patent Application
Connecting Structure for Drill Collar of Logging While Drilling Ins...
Publication number
20210277723
Publication date
Sep 9, 2021
Yongren FENG
E21 - EARTH DRILLING MINING
Information
Patent Application
Sampling-by-Pushing System and Setting Method Thereof
Publication number
20200355034
Publication date
Nov 12, 2020
CHINA OILFIELD SERVICES, LIMITED
Minggao ZHOU
E21 - EARTH DRILLING MINING
Information
Patent Application
Horizontal-to-Vertical Drilling Module for Deep Well
Publication number
20200291735
Publication date
Sep 17, 2020
CHINA NATIONAL OFFSHORE OIL CORPORATION
Yongren FENG
E21 - EARTH DRILLING MINING
Information
Patent Application
WIRE FOLLOW-UP PROTECTION STRUCTURE OF ELECTRIC REDUCER
Publication number
20180323589
Publication date
Nov 8, 2018
CHINA NATIONAL OFFSHORE OIL CORPORATION
Yongren Feng
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Sidewall Coring Structure Directly Driven by an Electric Motor
Publication number
20170214291
Publication date
Jul 27, 2017
CHINA NATIONAL OFFSHORE OIL CORPORATION
Yongren FENG
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Drilling Type Sidewall Coring Apparatus
Publication number
20170107813
Publication date
Apr 20, 2017
CHINA OILFIELD SERVICES LIMITED
Yongren FENG
E21 - EARTH DRILLING MINING
Information
Patent Application
System for Sampling from Formation While Drilling
Publication number
20160362977
Publication date
Dec 15, 2016
CHINA NATIONAL OFFSHORE OIL CORPORATION
Yongren FENG
E21 - EARTH DRILLING MINING
Information
Patent Application
Rock Formation Testing Method and Formation Testing Instrument
Publication number
20160108727
Publication date
Apr 21, 2016
CHINA NATIONAL OFFSHORE OIL CORPORATION
Yongren FENG
E21 - EARTH DRILLING MINING
Information
Patent Application
High-Pressure Fluid Mixing Pump Control System and Fluid Suction Co...
Publication number
20160097377
Publication date
Apr 7, 2016
CHINA NATIONAL OFFSHORE OIL CORPORATION
Yongren FENG
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
Pup Joint for Releasing Sidewall Contact of Stratigraphic Test Devi...
Publication number
20150316183
Publication date
Nov 5, 2015
CHINA NATIONAL OFFSHORE OIL CORP
Xiaofei QIN
E21 - EARTH DRILLING MINING