Elsevier BV
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Porosity model and pore evolution of transitional shales: an example from the Southern North China Basin
Elsevier BV - Tập 17 - Trang 1512-1526 - 2020
The evolution of shale reservoirs is mainly related to two functions: mechanical compaction controlled by ground stress and chemical compaction controlled by thermal effect. Thermal simulation experiments were conducted to simulate the chemical compaction of marine-continental transitional shale, and X-ray diffraction (XRD), CO2 adsorption, N2 adsorption and high-pressure mercury injection (MIP) w......
Drained rock volume around hydraulic fractures in porous media: planar fractures versus fractal networks
Elsevier BV - Tập 16 - Trang 1064-1085 - 2019
This study applies the Lindenmayer system based on fractal theory to generate synthetic fracture networks in hydraulically fractured wells. The applied flow model is based on complex analysis methods, which can quantify the flow near the fractures, and being gridless, is computationally faster than traditional discrete volume simulations. The representation of hydraulic fractures as fractals is a ......
Efficient desulfurization of gasoline fuel using ionic liquid extraction as a complementary process to adsorptive desulfurization
Elsevier BV - - 2015
The extractive desulfurization of a model gasoline containing several alkyl thiols and aromatic thiophenic compounds was investigated using two imidazolium-based ionic liquids (ILs), 1-butyl-3-methylimidazolium tetrachloroaluminate, and 1-octyl-3-methylimidazolium tetrafluoroborate, as extractants. A fractional factorial design of experiments was employed to evaluate the effects and possible inter......
Impact of surface roughness, surface charge, and temperature on sandstone wettability alteration by nanoparticles
Elsevier BV - Tập 20 - Trang 2852-2863 - 2023
Geochemical characteristics and genetic mechanism of the high-N2 shale gas reservoir in the Longmaxi Formation, Dianqianbei Area, China
Elsevier BV - Tập 17 - Trang 939-953 - 2020
As an important pilot target for shale gas exploration and development in China, the Longmaxi Formation shale in the Dianqianbei Area is characterized by high content of nitrogen, which severely increases exploration risk. Accordingly, this study explores the genesis of shale gas reservoir and the mechanism of nitrogen enrichment through investigating shale gas compositions, isotope features, and ......
Research into magnetic guidance technology for directional drilling in SAGD horizontal wells
Elsevier BV - Tập 10 - Trang 500-506 - 2013
SAGD horizontal wells are used to enhance oil recovery from heavy oil reservoirs. This technology requires precise separation between the production well and the injection well to ensure the efficient drainage of the reservoir. By studying the attitude of the downhole probe tube and the production well trajectory, an algorithm is proposed for eliminating ferromagnetic interference while drilling i......
Investigation on influence of drilling unloading on wellbore stability in clay shale formation
Elsevier BV - - 2020
Wellbore collapse frequently happens in the clay shale formation. To maintain wellbore stability, appropriate mud pressure is a vital factor. When clay formation is opened, drilling unloading occurs, modifying rock structure and strength at the wall of borehole, which affects the selection of mud pressure. Currently, mechanism of drilling unloading is still poorly understood which in return will b......
Adsorption behavior and wettability alteration of bis-imidazolium salts on vermiculite: Experimental and theoretical studies
Elsevier BV - Tập 19 - Trang 2460-2471 - 2022
The construction of shale rock physics model and brittleness prediction for high-porosity shale gas-bearing reservoir
Elsevier BV - Tập 17 - Trang 658-670 - 2020
Due to the huge differences between the unconventional shale and conventional sand reservoirs in many aspects such as the types and the characteristics of minerals, matrix pores and fluids, the construction of shale rock physics model is significant for the exploration and development of shale reservoirs. To make a better characterization of shale gas-bearing reservoirs, we first propose a new but......
Visualization of drained rock volume (DRV) in hydraulically fractured reservoirs with and without natural fractures using complex analysis methods (CAMs)
Elsevier BV - Tập 16 - Trang 550-577 - 2019
The drainage areas (and volumes) near hydraulically fractured wells, computed and visualized in our study at high resolution, may be critically affected by the presence of natural fractures. Using a recently developed algorithm based on complex analysis methods (CAMs), the drained rock volume (DRV) is visualized for a range of synthetic constellations of natural fractures near hydraulic fractures.......
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