Results 101 to 110 of about 11,809 (204)

X-ray Computed Tomography (CT) to Scan the Structure and Characterize the Mud Cake Incorporated with Various Magnetic NPs Concentration: An Application to Evaluate the Wellbore Stability and Formation Damage. [PDF]

Nanomaterials (Basel), 2023
Faisal RS, Salih NM, Kamal I, Préat A.
europepmc   +1 more source

Analysis of wellbore stability

, 1988
Open ...
McLean, Michael Richard, McLean, Michael Richard   +1 more
openaire   +1 more source

Geomechanical Modeling of In-Situ Stresses Around a Borehole [PDF]

, 2002
In this paper, we present a modelling of the in-situ stress state associated with the severe hole enlargement of a wellbore. Geomechanical information is relevant to assure wellbore stability, i.e., to prevent damages in the formation and later on ...
Grandi, Samantha, Rao, Rama V. N., Toksoz, M. Nafi   +2 more
core  

Numerical Simulation on the Influence of the Distribution Characteristics of Cracks and Solution Cavities on the Wellbore Stability in Carbonate Formation

Applied Sciences
The development of cracks and solution cavities in carbonate reservoirs can notably reduce the rock’s mechanical properties, leading to a severe wellbore collapse problem during drilling operations.
Jingzhe Zhang, Rongrong Zhao, Hongyi An, Wenhao Li, Yuxin Geng, Xiangyu Fan, Qiangui Zhang   +6 more
doaj   +1 more source

Fully-Triaxial Rock Failure Criteria and Implications for Wellbore Stability

, 2013
Imperial Users ...
Serrano, Pedro, Serrano, Pedro
core  

Interaction mechanism and development suggestions for the full cycle construction effect of surface horizontal wells in unmined coal mines

Meitan kexue jishu
To explore the differences in fracturing effects of different levels of ground level wells in unmined coal mines, and to reveal the interaction mechanism of construction effects in various stages of gas control throughout the entire cycle, combined with ...
Zhainan ZHANG, Ke YANG, Xinzhu HUA, Chunhui YE, Min YE, Wenjie LIU, Xiaolou CHI, Xin LYU   +7 more
doaj   +1 more source

Estimation of caving volumetric-flow using the ultrasonic Doppler Method

CT&F Ciencia, Tecnología & Futuro
Estimating the volumetric flow of cuttings and cavings that are extracted and transported by the drilling mud into the flow line while drilling a well is of major interest to for drillers so that they can understand the drilling conditions and maintain ...
Luis-Fernando Ramirez-Silva, Jenny-Mabel Carvajal-Jiménez, Ana B Ramirez   +2 more
doaj   +1 more source

Research on Key Parameters of Wellbore Stability for Horizontal Drilling in Offshore Hydrate Reservoirs

Applied Sciences
The South China Sea has abundant reserves of natural gas hydrates, and if developed effectively, it can greatly alleviate the pressure on the energy supply in China.
Zhengfeng Shan, Xiansi Wang, Zeqin Li, Zhenggang Gong, Nan Ma, Jianbo Zhang, Zhiyuan Wang, Baojiang Sun   +7 more
doaj   +1 more source

Wellbore stability evaluation method based on the continuous tangent envelope of a Mohr circle. [PDF]

Sci Prog, 2020
Liu H, Cui S, Meng Y, Fan Y, Liu T, Yu A, Hu Z.   +6 more
europepmc   +1 more source

Wellbore stability in geomechanics [PDF]

Borehole instabilities can be encountered at any stage in the life of a well and they are the main cause of drilling difficulties, resulting in substantial expenditures, expensive loss of time, sometimes even in the loss of part of or even whole boreholes.
openaire