|
|
|
|
|
Fei Gao, Yu Zhang, Chang Chen, Xiaosen Li and Zhaoyang Chen
The effectiveness of horizontal well drilling in improving the gas recovery efficiency of hydrate production makes it a promising technology for commercial exploitation. However, during horizontal well drilling in hydrate reservoirs, it is crucial to con...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jianxin Hu, Ke Li, Wenfeng Su and Xinyi Zhao
Centrifugal pumps are widely used in the oil and mining industries. In contrast to water pumps, the centrifugal pumps in the oil and mining industries are used for the transportation of drilling fluid, which is typically non-Newtonian fluid. Drilling flu...
ver más
|
|
|
|
|
|
|
|
|
|
|
Dongyu Su, Zhifang Chen, Nanxiang Liu and Xuyue Chen
Wellbores drilled in igneous formation with weak interlayers face significant risk of instabilities. This study aims to investigate the underlying mechanisms of these instabilities by employing a combination of rock mechanics tests and numerical simulati...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yufa He, Benjian Song and Qingping Li
This research explores the geomechanical challenges associated with gas hydrate extraction in submarine slope zones, a setting posing a high risk of significant geological calamities. We investigate slope and wellbore deformations driven by hydrate decom...
ver más
|
|
|
|
|
|
|
|
|
|
|
Amir Mohammad and Mesfin Belayneh
The axial movement of pipe in and out of the well generates positive (surge) and negative (swab) pressures that will impact the well pressure. When the swab and surge effects cause well pressures outside the allowable operational limits, wellbore instabi...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jun Liu, Guangrong Peng, Leyi Xu, Pei Liu, Wanlin Xiong, Ming Luo, Xiang Gao, Xumin Liu, Haoran Liang and Zhichao Li
The source of oil and gas and the stages of oil and gas accumulation in the ?double-Paleo? field of the HZ-A structure in the Pearl River Mouth Basin are analyzed, and the spatiotemporal coupling relationship of the key conditions of oil and gas accumula...
ver más
|
|
|
|
|
|
|
|
|
|
|
Heiko Woith, Josef Vlcek, Tomá? Vylita, Torsten Dahm, Tomá? Fischer, Kyriaki Daskalopoulou, Martin Zimmer, Samuel Niedermann, Jessica A. Stammeier, Veronika Turjaková and Martin Lanzendörfer
Mofettes are gas emission sites where high concentrations of CO2 ascend through conduits from as deep as the mantle to the Earth?s surface and as such provide direct windows to processes at depth. The Hartou?ov mofette, located at the western margin of t...
ver más
|
|
|
|
|
|
|
|
|
|
|
Abdek Hassan Aden
At the center of the Republic of Djibouti, an eroded rift called Asal is located where tectonic and magmatic activities can be observed at the surface. Multiple studies were carried out with different exploration methods, such as structural, geophysical ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Zhifeng Wan, Junsheng Luo, Xiaolu Yang, Wei Zhang, Jinqiang Liang, Lihua Zuo and Yuefeng Sun
Mud volcanoes and other fluid seepage pathways usually transport sufficient gas for the formation of gas reservoirs and are beneficial to the accumulation of gas hydrate. On the other hand, the fluid thermal effects of mud volcanoes can constrain the occ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Hong Li, Kun Ji, Ye Tao and Chun?an Tang
On the basis of a conceptual model for an Excavation based Enhanced Geothermal System (EGS-E), which proposed to extract heat from Hot Dry Rock at depth through dominantly adopting shaft, roadways, and caved rock failure techniques but not depending on e...
ver más
|
|
|
|
|
|