Results 11 to 20 of about 26,275 (120)

Mechanical property design method of cement sheath in a horizontal shale oil well under fracturing conditions

Petroleum Exploration and Development, 2022
Based on the elastoplastic model of cement sheath considering the influence of three-dimensional principal stress and the stress field model of interface crack, a mechanical performance design method of cement sheath is established to meet the wellbore ...
Donghua SU, Sheng HUANG, Zaoyuan LI, Jin LI, Dunqing XIAO, Ziyu WANG, Juan LI, Shuai NI   +7 more
doaj   +1 more source

Pore structure and fractal analysis of coal subjected to multiple treatments based on nuclear magnetic resonance

Energy Science & Engineering, 2022
Microwave heating (MW) and freeze fracturing (FF) have been widely used for enhancing the permeability of coal reservoirs. In this paper, the effects of combined MW–FF treatments on coals are experimentally investigated through nuclear magnetic resonance.
Zairong Yang, Yu Zhao, Chaolin Wang, Jing Bi   +3 more
doaj   +1 more source

The electrical signature of rock samples exposed to hydrostatic and triaxial pressures

Annals of Geophysics, 2001
The electrical signature of sedimentary (carbonate) and crystalline rock samples was studied in hydrostatic and triaxial pressure experiments up to 300 MPa.
G. Nover, H. Heikamp
doaj   +1 more source

Numerical simulation of temperature field in crack of supercritical carbon dioxide fracturing

Energy Science & Engineering, 2020
Supercritical carbon dioxide (SC‐CO2) fracturing technology has far‐reaching application potential for unconventional resources which is beneficial to water protection and CO2 sequestration.
Yi Zhou, Hongjian Ni, Zhonghou Shen, Wenpeng Wang, Meishan Wang   +4 more
doaj   +1 more source

Regularities in the development of fracturing zones in rocks of the sedimentary cover of Western Siberia, based on the results of the application of the OilRiver technology, horizontal well logging and hydrofracturing data

Georesursy, 2018
The article presents known results of theoretical and experimental works, describing the regularities of the formation of fractured-block structures in platform areas.
E.D. Glukhmanchuk, V.V. Krupitskiy, A.V. Leontievskiy   +2 more
doaj   +1 more source

Fem Analysis of Proppant Sticking in Rock Cracks

Archives of Civil Engineering, 2018
The problem of effective gas extraction from Polish shale rocks is an interesting research subject for scientists. A properly selected proppant, which protects cracks from closing during the fracturing process, inestimably contributes to an increase of ...
Kwietniewski M., Miedzińska D., Niezgoda T.   +2 more
doaj   +1 more source

Field experiments and main understanding of shale oil hydraulic fracturing

Frontiers in Earth Science
To understand the key processes of hydraulic fracturing in shale oil reservoirs, such as artificial fracture initiation and extension, proppant transportation and settlement, and the influencing factors of post-fracture production, many hydraulic ...
Mengyun Zhao, Mengyun Zhao, Mengyun Zhao
doaj   +1 more source

Seismic studies of the unevenness of open fracturing and inhomogeneity of the fluid saturation in the geological environment for optimal development of oil and gas fields

Georesursy, 2018
The distribution of fracturing and the type of fluid saturation in the geological environment, along with its structure, is the most important information for optimal development of oil and gas fields, including their search, exploration and development.
O.L. Kuznetsov, I.A. Chirkin, S.I. Arutyunov, E.G. Rizanov, V.P. Dyblenko, V.V. Dryagin   +5 more
doaj   +1 more source

Research on the timing of polymer flooding oil and water well fracturing [PDF]

E3S Web of Conferences
Fracturing technology is the main measure to increase production and injection in oilfield production. With the gradual expansion of the scale of polymer flooding, the proportion of fractured Wells also increases year by year.
Zhang Wei
doaj   +1 more source

Adsorption and diffusion of shale oil on kerogen in CO2 flooding: molecular dynamics and NMR studies of temperature and multi-component effects

Journal of Petroleum Exploration and Production Technology
The adsorption and diffusion behavior of shale oil within kerogen nanopores represents a core scientific issue for improving the efficiency of CO2-enhanced oil recovery in shale reservoirs.
Juan Zhang, Yunzhong Jia, Ziqi Shen, Jiren Tang, Caiyun Xiao, Xiao Sun   +5 more
doaj   +1 more source