Results 31 to 40 of about 384,591 (288)

Geomechanics of Unconventional Reservoirs: Hydraulic Fracturing and Nanoindentation [PDF]

, 2021
Geomechanics is the study of the mechanical response of geologic formations subjected to injection, production, and storage of fluids in the subsurface. It plays a role in understanding formation integrity and the response to oil and gas depletion during
Acosta Montenegro, Juan Camilo
core  

Horizontal respect distance for hydraulic fracturing in the vicinity of existing faults in deep geological reservoirs: A review and modelling study [PDF]

, 2017
Hydraulic fracturing is widely used in the petroleum industry to enhance oil and gas production, especially for the extraction of shale gas from unconventional reservoirs.

core   +1 more source

Combination of Pre-Pulse and Constant Pumping Rate Hydraulic Fracturing for Weakening Hard Coal and Rock Mass

Energies, 2020
The weakening of hard coal–rock mass is the core common problem that is involved in the top coal weakening in hard and thick coal seams, the hard roof control during the initial mining stage in the longwall mining face, and the hanging roof control in ...
Qingying Cheng, Bingxiang Huang, Luying Shao, Xinglong Zhao, Shuliang Chen, Haoze Li, Changwei Wang   +6 more
doaj   +1 more source

The Model for Calculating Pore Evaluation of Fractal Rock Body Under Hydraulic Fracturing [PDF]

, 2014
In general, the pore medium of rock has fractal characters. In order to calculate the change regulations of porosity and evaluation character of the rock under hydraulic fracturing accurately, in this paper, a new damage variable was defined to describe ...
Yu, LIU, Tingting, WANG, Wanchun, ZHAO, Xia, LI, Chen, WANG   +4 more
core   +1 more source

Determination of stress state in deep subsea formation by combination of hydraulic fracturing in situ test and core analysis: A case study in the IODP Expedition 319

, 2013
[1] In situ test of hydraulic fracturing (HF) provides the only way to observe in situ stress magnitudes directly. The maximum and minimum horizontal stresses, SHmax and Shmin, are determined from critical borehole pressures, i.e., the reopening pressure
Ito, Takatoshi, David F. Boutt, Ito, Hisao, Byrne, Timothy, Takatoshi Ito, Doan, Mai-Linh, Funato, Akio, Yasuyuki Kano, Lisa C. McNeill, Mai‐Linh Doan, Demian Saffer, McNeill, Lisa C., Saffer, Demian, Timothy Byrne, Lin, Weiren, Boutt, David F., Kano, Yasuyuki, Moe, Kyaw Thu, Kyaw Thu Moe, Akio Funato, Hisao Ito, Weiren Lin   +21 more
core   +1 more source

Using borehole radar detecting hydraulic fracturing crack in near horizontal holes in coal mine

Frontiers in Earth Science
Currently, hydraulic fracturing technology is widely implemented for controlling the surrounding rock and enhancing permeability in low-permeability coal seams.
Jiang Bici, Jiang Bici
doaj   +1 more source

The politics of hydraulic fracturing in Germany : party competition at different levels of government

, 2016
Hydraulic fracturing has been practiced in Germany for decades, and several attempts have been made to legalize and regulate new drilling methods, which eventually led to the approval of a law to effectively ban this activity in 2016.
Lang, Achim, Tosun, Jale, Achim Lang, Jale Tosun   +3 more
core   +1 more source

Hydraulic fracturing in ice boreholes: Theory and tests

, 2019
Hydraulic fracturing is the well-known phenomenon that can occur intentionally, as it is used in the petroleum industry to stimulate the flow of natural gas or oil, or naturally, for example, as a reason for calving of ice shelves.
Chen, Chen, Zhang, Nan, Liu, Shuyuan, Zhang, Han, Jin, Chengcai, Talalay, Pavel, Chen, Yong   +6 more
core   +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

Enhancing Fatigue Crack Growth Resistance in Heterostructured Aluminum Bimetals by Tailored Interface Design

Advanced Engineering Materials, EarlyView.
Different Al/Al bimetals with a single engineered interface reveal how mechanical mismatch governs fatigue crack growth under cyclic loading. Additionally, loading–unloading–reloading tests link the microyielding behavior to the fatigue crack growth resistance, while crack‐path analysis reveals toughening mechanisms at the interface, highlighting ...
Sebastian Vollath, Philip Manuel Pohl, Heinz Werner Höppel   +2 more
wiley   +1 more source