Results 1 to 10 of about 164,896 (136)

Application of CO2 miscible flooding in ultra-low permeability beach-bar sand reservoir

open access: yesFrontiers in Earth Science, 2022
The beach-bar sand reservoir of the Sha 4 Member of the Shahejie Formation in the Dongying Sag is the main oil-bearing formation in this area. In recent years, its proven reserves have been getting lower and lower, and the poor petrophysical properties ...
Sen Yang   +6 more
doaj   +1 more source

Experimental study on compatibility of reservoir and polymer gel profile control agent

open access: yesFrontiers in Earth Science, 2022
The coupling relationship between polymer gel system and reservoir pores is an important basis for scientific formulation of tertiary oil recovery programs.
Sen Yang   +6 more
doaj   +1 more source

Thermo-Hydro-Mechanical Coupling Numerical Simulation on Mechanical Heterogeneity of Coal Rock

open access: yesGeofluids, 2022
Coal rock is a porous medium composed of organic matter and inorganic minerals, and it is very complex and highly heterogeneous. Coal bed methane (CBM) production is a thermo-hydro-mechanical (THM) coupling process in heterogeneous coal rock.
Shuiqing Hu   +7 more
doaj   +1 more source

A Novel Stacking Heterogeneous Ensemble Model with Hybrid Wrapper-Based Feature Selection for Reservoir Productivity Predictions

open access: yesComplexity, 2021
Acid fracturing is the most important stimulation method in the carbonate reservoir. Due to the high cost and high risk of acid fracturing, it is necessary to predict the reservoir productivity before acid fracturing, which can provide support to ...
Changlin Zhou   +7 more
doaj   +1 more source

Failure Mechanism of Rock Specimens with a Notched Hole under Compression—A Numerical Study

open access: yesApplied Sciences, 2021
Discontinuities are natural structures that exist in rocks and can affect the stability of rock structures. In this article, the influence of notch presence on the strength and failure evolution around a hole in compressed rock specimens is investigated ...
Amin Manouchehrian   +2 more
doaj   +1 more source

Structural and geological study of the zone of influence of the central part of the West Sakhalin fault [PDF]

open access: yesГеосистемы переходных зон, 2022
. Structural and geological studies were carried out as part of a comprehensive field research for studying the geological and structural characteristics in the area of the village of Boshnyakovo – the town of Shakhtyorsk (the Uglegorsky district ...
Yurii V. Kostrov   +2 more
doaj   +1 more source

Estimating Sustainable Long-Term Fluid Disposal Rates in the Alberta Basin

open access: yesEnergies, 2023
Reliable regional-scale permeability data and minimum sustained injectivity rate estimates are key parameters required to mitigate economic risk in the site selection, design, and development of commercial-scale carbon sequestration projects, but are ...
Mahendra Samaroo   +2 more
doaj   +1 more source

Gas content of the D6 coal seam

open access: yesҚарағанды университетінің хабаршысы. Физика сериясы, 2021
The article deals with the issues of gas content of the most thick and stable D6 coal seam in the Tentek region. This complex structure seam is dangerous in underground mining for gas and dust outbursts, it consists of coal packs separated by ...
С.Б. Иманбаева   +5 more
doaj   +1 more source

Fracturing ranked surfaces [PDF]

open access: yes, 2012
Discretized landscapes can be mapped onto ranked surfaces, where every element (site or bond) has a unique rank associated with its corresponding relative height.
A Coniglio   +40 more
core   +3 more sources

Surface well partition gas extraction technology system and engineering practice

open access: yesMeitan kexue jishu, 2023
In order to effectively reduce the gas content of coal seam, realize the efficient utilization of gas resources and reduce the difficulty of underground gas management, combined with the geological characteristics of Shoushan I mine site, we built a ...
LI Yanhe
doaj   +1 more source

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