Results 81 to 90 of about 2,284,708 (212)

Enhancing drilling operations: prioritizing wellbore integrity, formation preservation, and effective mud waste control (case study)

Journal of Engineering and Applied Science
This study examined the issues of wellbore instability encountered during the drilling of the vertical exploration Al-Rateena-1 well, Block 25D, Al-Rawat Field, Sudan.
Ahmed Abdelaziz Ibrahim Elrayah
doaj   +1 more source

Integration of image recognition and expert system for real-time wellbore stability analysis [PDF]

Wellbore stability is a key factor affecting safe and efficient drilling. At present, it is difficult to conduct real-time and accurate analysis of wellbore stability in related research.
Wei, Shiming, Jin, Yan, Wang, Hanqing, Lu, Yunhu, Meng, Han, Fan, Yongdong, Pang, Huiwen   +6 more
core   +1 more source

Rock Mechanical Properties and Wellbore Stability of Fractured Dolomite Formations. [PDF]

ACS Omega, 2023
Guo J, She C, Liu H, Cui S.
europepmc   +1 more source

Research on vertical structure stability before cementing ultra-deep wellbore by drilling method

Meitan xuebao
To address the problem of vertical stability of ultra-deep wellbore by drilling method, firstly, the results of the equation of critical height of equal section for non-full counterweighted water drilled wellbore are compared with the results of the ...
Renliang SHAN, Tianyu HAN, Guoye JING, Jie TAN, Weijie LI, Dongjie QIAO, Zhenyu XU, Xinpeng FU   +7 more
doaj   +1 more source

Wellbore breakouts in heavily fractured rocks: A coupled discrete fracture network-distinct element method analysis

Journal of Rock Mechanics and Geotechnical Engineering
Wellbore breakout is one of the critical issues in drilling due to the fact that the related problems result in additional costs and impact the drilling scheme severely.
Yongcun Feng, Yaoran Wei, Zhenlai Tan, Tianyu Yang, Xiaorong Li, Jincai Zhang, Jingen Deng   +6 more
doaj   +1 more source

Study on Rock Mechanics and Wellbore Stability of Igneous Formation in the Shunbei Area. [PDF]

ACS Omega, 2022
Liu H, Cui S, Meng Y, Sun H, Yu X.
europepmc   +1 more source

An Investigation of the Influence of the Main Wellbore on the Wellbore Stability of Sidetracked Wellbore of the Deep Earth TK-1

Processes
Deep Earth TK-1, China’s first 10,000 m scientific exploration well, encountered severe wellbore instability during sidetracking at a depth of approximately 9500 m under ultra-deep, high-stress conditions (maximum horizontal stress σH = 230 MPa, minimum horizontal stress σh = 200 MPa).
Xuwu Luo, Ning Li, Yan Jin, Jiaqi Luo, Wentong Fan, Yang Xia, Yunhu Lu   +6 more
openaire   +1 more source

Experimental Study on the Adaptability of Plugging Drilling Fluids to Wellbore Stability in Hard Brittle Shale Formations. [PDF]

ACS Omega, 2022
Zhang W, Liu X, Liang L, Xiong J.
europepmc   +1 more source

An Investigation of the Relationship Between the Time-Dependent Wellbore Stability and the Related Operational Practices

, 2018
Published numerical and analytical solutions for wellbore stability predict certain trends in the behavior of hole geometry as a function of time.
Osman Hamid, Zuhair Al-Hassan, Hussain I. AlBahrani, Adel Al-Qahtani   +3 more
core   +1 more source

Study on Rock Mechanical Properties and Wellbore Stability of Fractured Carbonate Formation Based on Fractal Geometry. [PDF]

ACS Omega, 2022
Liu H, Cui S, Meng Y, Han Z, Yang M.
europepmc   +1 more source