Results 211 to 220 of about 7,798 (251)
Some of the next articles are maybe not open access.
SCIENTIA SINICA Technologica, 2016
基于页岩基质的纳米尺度孔隙特征, 分析了页岩气在纳米孔隙中渗流的扩散、滑脱和达西渗流等对页岩气流动流量的影响. 压差作用下页岩气流量的特征研究表明: 达西流动产生的流量与地层压力、压力梯度和渗透率成正比; 扩散引发的流量与压力梯度成正比, 与平均压力成反比, 与渗透率无关; 滑脱引发的流量与压力梯度、渗透率成正比, 压力梯度和渗透率一定时, 滑脱流量为定值, 与地层平均压力无关. 低压下, 气体的扩散效应和滑脱效应明显, 扩散产生的流量所占比例较大, 高压下渗流以达西流为主; 在整个从低压到高压的地层压力区间, 在低压下由于扩散作用, 总的页岩气有一定的流量, 随着地层压力的增大扩散产生的流量减小, 到一定值后随着达西流量的进一步增大, 总流量随地层压力的增加而增大 ...
Xiang ZHANG +3 more
openaire +1 more source
基于页岩基质的纳米尺度孔隙特征, 分析了页岩气在纳米孔隙中渗流的扩散、滑脱和达西渗流等对页岩气流动流量的影响. 压差作用下页岩气流量的特征研究表明: 达西流动产生的流量与地层压力、压力梯度和渗透率成正比; 扩散引发的流量与压力梯度成正比, 与平均压力成反比, 与渗透率无关; 滑脱引发的流量与压力梯度、渗透率成正比, 压力梯度和渗透率一定时, 滑脱流量为定值, 与地层平均压力无关. 低压下, 气体的扩散效应和滑脱效应明显, 扩散产生的流量所占比例较大, 高压下渗流以达西流为主; 在整个从低压到高压的地层压力区间, 在低压下由于扩散作用, 总的页岩气有一定的流量, 随着地层压力的增大扩散产生的流量减小, 到一定值后随着达西流量的进一步增大, 总流量随地层压力的增加而增大 ...
Xiang ZHANG +3 more
openaire +1 more source
Wave Velocities in Shales – A Rock Physics Model
65th EAGE Conference & Exhibition, 2003C-13 WAVE VELOCITIES IN SHALES – A ROCK PHYSICS MODEL Abstract 1 A rock physics model for predicting wave velocities in shale has been established based on the Hashin-Shtrikman (1963) theory for elastic properties of composite media. The model has been used to analyse P-wave velocity measurements on 20 different shale cores with porosities ranging from
R.M. Holt, E. Fjær
openaire +1 more source
Rock characterization of Fayetteville shale gas plays
Fuel, 2013Abstract Multiple techniques were used to characterize the petrophysical properties of the rock samples from the Fayetteville shale gas play, including clay mineralogy, wettability, organic matter and their maturation, submicron pore structure, and 3-D pore structure. X-ray diffraction (XRD) mineralogy analysis showed high quartz and low clay content
Baojun Bai +3 more
openaire +1 more source
The rock mechanical properties of lacustrine shales: Argillaceous shales versus silty laminae shales
Marine and Petroleum Geology, 2022Hongyan Yu +9 more
openaire +1 more source
Investigation of Oil Adhesion to Shale Rocks for EOR
SPE International Conference on Oilfield Chemistry, 2017Abstract Significant work is ongoing within the industry to determine a best practice for maximizing oil recovery from fractured oil-wet shale reservoirs. Rapid decline curves are often observed and water flooding can be largely ineffective because of negative capillary pressure.
D. Nguyen, T. Phan, J. Phan, T. P. Hsu
openaire +1 more source
Rock Physics of Organic Shale and Its Applications
SEG Technical Program Expanded Abstracts 2012, 2012Summary Using Eagle Ford shale as the main focus, we show most significant rock physics issues relating to both petrophysical and seismic inversion interpretation in organic shales in general. Starting with newly developed petrophysical model that allows us to quantify TOC, total porosity, organic porosity and saturation we proceed to the rock physics ...
Lev Vernik, Shihong Chi, Julia Khadeeva
openaire +1 more source
Comparison of Carbonate and Shale Source Rocks
1984As with shales, the source potential of carbonate rocks depends primarily upon the organic facies rather than the mineral matrix. Where the depositional and early diagenetic environment is highly oxygenated, the total-organic-carbon (TOC) content is low. The remaining kerogen is highly oxygenated, with a negligible generative capacity for hydrocarbons,
openaire +1 more source
TECHNICAL CHARACTERISTICS OF SOME SHALE ROCK
2017Manufactured and tested in laboratory samples of the series to determine the technical characteristics of the shale rocks. The data on the physical and mechanical strength, thermal, elastic, layered, anisotropic, hydraulic and wave properties of ...
Samedov, Akhmed Medzhyd ohly +3 more
openaire +1 more source
Investigation into shale softening induced by water/CO2-rock interaction
International Journal of Rock Mechanics and Minings Sciences, 2023Zhijun Jin, Yushi Zou
exaly