... tension with crude oils from Wolfcamp formations. Over 25 formulations were evaluated and those that passed the size screening and after showed the lowest interfacial tensions were then analyzed using the column load recovery and oil recovery by spontaneous imbibition tests. The results of the study...

... imbibition is the main mechanism by which fracture fluid enters the rock. Herein we study the spontaneous imbibition of brine to determine the flow mechanism and uptake capability of fracturing fluid in unconventional source rocks. We used NMR spectroscopy and imaging methods to track the spatial...

... rock property drill cuttings equivalent depth nmr scan agreement oil porosity saturation spontaneous imbibition solvent extraction method core plug unconventional resource technology conference URTeC: 3726033 Comprehensive Laboratory Evaluation of Reservoir Rock Properties on Drill...

... the wettability-alteration impact on spontaneous imbibition and compute the incremental oil recovery contributed by different fracturing fluid compositions. Based on the studied case, the oil adhesion to clay can be reduced by tuning the fracturing fluid salinity. The ionic concentrations of 2.5 wt.% of NaCl...

.... Cationic dodecyltrimethylammonium bromide increases fracturing fluid loss by 46% for the studied Montney sample. Using resulted in better upscaling outcomes compared to and for the studied Montney samples. Pore-scale wettability is required to upscale spontaneous imbibition data from core plug to reservoir...

... Spontaneous imbibition of hydraulic fracturing fluids is considered as one of the underlying causes of water loss during multistage fracturing operations. Understanding the mechanisms behind matrix imbibition rate is crucial in planning fracturing operations and optimizing production from shale...

... URTeC: 3096 Organic Shale Spontaneous Imbibition and Monitoring with NMR to Evaluate In-Situ Saturations, Wettability and Molecular Sieving Mansoor Ali*1, Safdar Ali2, Ashish Mathur1, Chad Belanger1, 1. W.D. Von Gonten Laboratories, 2. W.D. Von Gonten & Co. Copyright 2020, Unconventional Resources...

... equilibrium pressure particle size saturation eagle ford shale permeability imbibition experiment shale sample oil saturation pressure vessel total pressure drop capillary pressure curve spontaneous imbibition Abstract Determination of dynamic fluid intrusion in tight oil reservoirs...

... limestone cores by water imbibition at 347 K. Results of the contact-angle experiment show that the contact angle was rapidly reduced to 26° with 3pRB, in contrast to the contact angle of 123° with RB, without affecting the oil/brine IFT. Spontaneous imbibition results show that the oil recovery factor...

...URTeC: 194 Water/Oil Displacement by Spontaneous Imbibition Through Multiscale Imaging and Implication on Wettability in Wolfcamp Shale Sheng Peng*1, Yijin Liu2, Lucy Tingwei Ko1, William Ambrose1; 1. Bureau of Economic Geology, University of Texas at Austin, 2. SLAC National Accelerator Laboratory...

... a better understanding for project optimization. In addition, as most current studies focused on the spontaneous imbibition under atmospheric pressure, it is important to investigate the process with external pressures because hydraulic fracturing is a high-pressure driven operation. By performing both...

... used a high- speed centrifuge, first to saturate the cores with formation brine; second, we injected oil into the core to displace brine (1st drainage cycle); third, we allowed spontaneous imbibition of brine into the core; fourth, we conducted force imbibition displacement of the oil with brine until...

... Abstract This work investigates the impact of fracture surface area to rock volume ratio (Af/Vr) on spontaneous imbibition at ambient conditions using ultra-tight reservoir carbonate rocks. A significantly improved insight is presented into the physics of surfactant-based enhanced oil...

... Abstract The addition of surfactant to the completion fluid of a shale oil well has been widely believed to improve well performance. Previous laboratory studies showed that the method is based on enhanced capillary-driven spontaneous imbibition as a result of surfactant interaction...

... Upstream Oil & Gas contact angle correlation enhanced recovery porosity IFT recovery factor wettability experimental data surfactant spontaneous imbibition interfacial tension imbibition wettability alteration reservoir Eagle Ford imbibition experiment capillary pressure...

... Abstract The oil wet nature of shale reservoirs leads to rapidly declining oil rates during production stages. For fractured shale reservoirs, chemical flooding with surfactants has been shown to enhance oil production from water flooding (huff and puff method) due to spontaneous imbibition...

... flowing? Since 2009, our research group has focused on an idea of using surfactant spontaneous imbibition to enhance the oil recovery from the Bakken Formation, and this idea has been already put in use for a field application test. Our previous work showed that with optimized surfactant formulations...

... (NPs) to track spontaneous imbibition of water into submicron-scale pores. The subsequent presence of these NPs indicates previous water presence and thus hydrophilicity of the pore walls. In these initial experiments we investigate our ability to detect nanoparticle deposits in a microporous ceramics...

... imbibition. An analytic solution for spontaneous imbibition has been coupled with a fracture pore volume constraint to calculate the water invasion during soaking. The gravity segregation and resulting flowing area reduction in the fracture will cause higher decline of the imbibition rate compared with a 1D...

... media fluid modeling structural geology microfracture network imbibition experiment Upstream Oil & Gas rough micromodel saturation hydraulic fracturing Fluid Dynamics experiment microfracture spontaneous imbibition microfracture connectivity Reservoir Characterization equation...