Zhichuan Guan

Person

Qingdao City, CN

People

Patents Grantslast 30 patents

Information Patent Grant
Bottom-hole impact-rotation stepping combined unloading rock-breaki...
- Patent number 11,976,554
- Issue date May 7, 2024
- CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
- Yongwang Liu
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drill bit with joint function of induced unloading and abrasive jet...
- Patent number 11,255,127
- Issue date Feb 22, 2022
- CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
- Yongwang Liu
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drilling speed increasing device driven by downhole motor for gener...
- Patent number 10,927,607
- Issue date Feb 23, 2021
- CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
- Hualin Liao
- E21 - EARTH DRILLING MINING
Information Patent Grant
Depressuriz od for downhole annulus drilling fluid
- Patent number 10,815,743
- Issue date Oct 27, 2020
- CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
- Yongwang Liu
- E21 - EARTH DRILLING MINING
Information Patent Grant
Screw drill bypass valve with large displacement diversion function
- Patent number 10,801,282
- Issue date Oct 13, 2020
- CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
- Yucai Shi
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drilling speed improvement device capable of producing both hydraul...
- Patent number 10,718,176
- Issue date Jul 21, 2020
- CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
- Hualin Liao
- E21 - EARTH DRILLING MINING
Information Patent Grant
Weight-on-bit self-adjusting drill bit
- Patent number 10,233,695
- Issue date Mar 19, 2019
- China University of Petroleum (East China)
- Zhichuan Guan
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and system for improving drilling speed by using drill speed...
- Patent number 9,540,881
- Issue date Jan 10, 2017
- CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
- Zhichuan Guan
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
BOTTOM-HOLE IMPACT-ROTATION STEPPING COMBINED UNLOADING ROCK-BREAKI...
- Publication number 20240084646
- Publication date Mar 14, 2024
- CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
- Yongwang LIU
- E21 - EARTH DRILLING MINING
Information Patent Application
RISK ASSESSMENT-BASED DESIGN METHOD FOR DEEP COMPLEX FORMATION WELL...
- Publication number 20220170361
- Publication date Jun 2, 2022
- China University of Petroleum
- Zhichuan GUAN
- E21 - EARTH DRILLING MINING
Information Patent Application
DRILL BIT WITH JOINT FUNCTION OF INDUCED UNLOADING AND ABRASIVE JET...
- Publication number 20210246729
- Publication date Aug 12, 2021
- CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
- Yongwang LIU
- E21 - EARTH DRILLING MINING
Information Patent Application
RISK ASSESSMENT-BASED DESIGN METHOD FOR DEEP COMPLEX FORMATION WELL...
- Publication number 20210011194
- Publication date Jan 14, 2021
- China University of Petroleum
- Zhichuan GUAN
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DEPRESSURIZ OD FOR DOWNHOLE ANNULUS DRILLING FLUID
- Publication number 20200270959
- Publication date Aug 27, 2020
- China University of Petroleum (East China)
- YONGWANG LIU
- E21 - EARTH DRILLING MINING
Information Patent Application
DRILLING SPEED INCREASING DEVICE DRIVEN BY DOWNHOLE MOTOR FOR GENER...
- Publication number 20200199959
- Publication date Jun 25, 2020
- China University of Petroleum (East China)
- Hualin LIAO
- E21 - EARTH DRILLING MINING
Information Patent Application
DRILLING SPEED IMPROVEMENT DEVICE CAPABLE OF PRODUCING BOTH HYDRAUL...
- Publication number 20200080379
- Publication date Mar 12, 2020
- China University of Petroleum (East China)
- Hualin LIAO
- E21 - EARTH DRILLING MINING
Information Patent Application
SCREW DRILL BYPASS VALVE WITH LARGE DISPLACEMENT DIVERSION FUNCTION...
- Publication number 20190368289
- Publication date Dec 5, 2019
- China University of Petroleum (East China)
- Yucai SHI
- E21 - EARTH DRILLING MINING
Information Patent Application
WEIGHT-ON-BIT SELF-ADJUSTING DRILL BIT
- Publication number 20180363381
- Publication date Dec 20, 2018
- CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
- ZHICHUAN GUAN
- E21 - EARTH DRILLING MINING
Information Patent Application
METHOD AND SYSTEM FOR IMPROVING DRILLING SPEED BY USING DRILL SPEED...
- Publication number 20140166368
- Publication date Jun 19, 2014
- China University of Petroleum (East China)
- Zhichuan Guan
- E21 - EARTH DRILLING MINING

Zhichuan Guan

Person

Patents Grantslast 30 patents

Bottom-hole impact-rotation stepping combined unloading rock-breaki...

Drill bit with joint function of induced unloading and abrasive jet...

Drilling speed increasing device driven by downhole motor for gener...

Depressuriz od for downhole annulus drilling fluid

Screw drill bypass valve with large displacement diversion function

Drilling speed improvement device capable of producing both hydraul...

Weight-on-bit self-adjusting drill bit

Method and system for improving drilling speed by using drill speed...

Patents Applicationslast 30 patents

BOTTOM-HOLE IMPACT-ROTATION STEPPING COMBINED UNLOADING ROCK-BREAKI...

RISK ASSESSMENT-BASED DESIGN METHOD FOR DEEP COMPLEX FORMATION WELL...

DRILL BIT WITH JOINT FUNCTION OF INDUCED UNLOADING AND ABRASIVE JET...

RISK ASSESSMENT-BASED DESIGN METHOD FOR DEEP COMPLEX FORMATION WELL...

DEPRESSURIZ OD FOR DOWNHOLE ANNULUS DRILLING FLUID

DRILLING SPEED INCREASING DEVICE DRIVEN BY DOWNHOLE MOTOR FOR GENER...

DRILLING SPEED IMPROVEMENT DEVICE CAPABLE OF PRODUCING BOTH HYDRAUL...

SCREW DRILL BYPASS VALVE WITH LARGE DISPLACEMENT DIVERSION FUNCTION...

WEIGHT-ON-BIT SELF-ADJUSTING DRILL BIT

METHOD AND SYSTEM FOR IMPROVING DRILLING SPEED BY USING DRILL SPEED...