Abstract The community diversities of two oil reservoirs with low permeability of 1.81 × 10−3 and 2.29 × 10−3 μm2 in Changqing, China, were investigated using a high throughput sequencing technique to analyze the influence of biostimulation with a nutrient activator on the bacterial communities. These two blocks differed significantly in salinity (average 17,500 vs 40,900 mg/L).
Abstract Understanding mechanisms of oil mobilization of tight matrix during CO2 injection is crucial for CO2 enhanced oil recovery (EOR) and sequestration engineering design. In this study exposure behavior between CO2 and tight rock of the Ordos Basin has been studied experimentally by using nuclear magnetic resonance transverse relaxation time (NMR
Abstract: Unconventional oil and gas resources, especially shale gas resources have great potential for exploration and development in China. In Shale gas exploration and development process, reservoir pore pressure is a very important parameter, and the pore pressure prediction can improve the appraisal accuracy of project dessert. This paper analyzes
Abstract Managing the wastewater discharged from oil and shale gas fields is a big challenge, because this kind of wastewater is normally polluted by high contents of both oils and salts. Conventional pressure-driven membranes experience little success for treating this wastewater because of either severe membrane fouling or incapability of desalination.
Pre-stack basis pursuit seismic inversion for brittleness of shale Abstract Brittleness of rock plays a significant role in exploration and development of shale gas reservoirs. Young’s modulus and Poisson’s ratio are the key parameters for evaluating the rock brittleness in shale gas exploration because their combination relationship can quantitatively characterize the rock
An Experimental Investigation of the Risk of Triggering Geological Disasters by Injection under Shear Stress Yixin Liu1,2, Jiang Xu1,2 & Shoujian Peng1,2 1State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China. 2State and Local Joint Engineering Laboratory of Methane Drainage in Complex Coal Gas Seam, Chongqing
Methane and the greenhouse-gas footprint of natural gas from shale formations Robert W. Howarth1 • Renee Santoro • Anthony Ingraffea2 1Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY 14853, USA. 2School of Civil and Environmental Engineering, Cornell University, Ithaca, NY 14853, USA Abstract We evaluate the greenhouse gas footprint of natural gas
Nanostructural control of methane release in kerogen and its implications to wellbore production decline Tuan Anh Ho1, Louise J. Criscenti1 & Yifeng Wang2 1Geochemistry Department, Sandia National Laboratories, Albuquerque, New Mexico 87185, USA. 2Nuclear Waste Disposal Research and Analysis Department, Sandia National Laboratories, Albuquerque, New Mexico 87185, USA. Abstract Despite massive success of shale
Confinement Correction to Mercury Intrusion Capillary Pressure of Shale Nanopores Sen Wang1,2, Farzam Javadpour1 & Qihong Feng2 1Bureau of Economic Geology, Jackson School of Geosciences, The University of Texas at Austin, Austin, TX, United States. 2School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, China. Abstract We optimized potential parameters in
Flow visualization of CO2 in tight shale formations at reservoir conditions M. A. Fernø1, L. P. Hauge1, A. Uno Rognmo1, J. Gauteplass1, and A. Graue1 1Department of Physics and Technology, University of Bergen, Bergen, Norway Abstract The ﬂow of CO2 in porous media is fundamental to many engineering applications and geophysical processes. Yet detailed