... Abstract Pore radius and pore surface wettability affect capillary pressure and relative permeability functions which, in turn, affect fluid distribution in the flow channels and the outcome of improved and enhanced oil recovery in the reservoir. The contact angle between each pair of fluids...

.... Previously we showed using a combination of experimental methods and molecular simulation studies that kerogen type, thermal maturity, and reservoir temperature conditions affect the contact angle of the water droplet on kerogen surface, and therefore, wettability of kerogen. Wettability affects...

... salinity that contains 3,900 ppm of sulfate. SRB is available near a shale oil field in Texas. The other is 1.0 wt% 3-pentanone in SRB (3P-SRB). As a wettability alteration agent, sulfate is highly polar, and 3-pentanone is miscible with oil and only slightly soluble in SRB. Contact angle experiments using...

... complexation of various minerals to mimic the wettability state of the reservoir. Third, we validate our method on zeta-potential, contact angle, and imbibition data from a previously published study using different fluids with different salinities. Finally, we present a mechanistic approach to model...

... were obtained. This pore-network-based upscaling framework has been employed to derive the macroscopic phase behavior in complex nanopore networks. The pores were assumed to be square tubes with uniform surface wettability (i.e., zero contact angle). In natural shale rocks, the pore geometry can...

... induction dielectric constant as shown later in the results section. URTeC 5009 8 Laboratory measurements of contact angle Typical industry measurements of contact angle use the capillary suction test (CST) because it is simple and fast. This test has several shortcomings due to the use of a filter paper...

... wettability alteration, ability to increase oil recovery during core soaking, and effect on CO2-oil interfacial tension (IFT). All three surfactants exhibited good solubility in CO2 (roughly 1 wt% at pressures of 2000-5000 psi). Contact angle experiments demonstrated that the CO2+surfactant solutions can...

... enhanced recovery shale gas reservoir characterization artificial intelligence log analysis upstream oil & gas mechanistic model contact angle machine learning well logging reservoir simulation conductive particle surface conductance waterflooding spherical particle...

... considers the influence of various geological control (pore size distribution, throat additional resistance, wettability and TOC) on AP. The results show that the additional resistance caused by pore-throat structures decreases AP, and its influence degree is positively correlated with contact angle...

... imbibition effect experiment urtec 3323 matrix water saturation contact angle pressure gradient mass balance equation fluid dynamics relative permeability imbibition hydraulic fracture permeability URTeC: 3323 Study of Fracturing Fluid Imbibition Impact on Gas-Water Two Phase Flow in Shale...

... characterization shale gas enhanced recovery complex reservoir unconventional resource economics experiment imbibition urtec 3168 spontaneous imbibition shale oil oil shale fluid dynamics porosity affinity shale sample structural geology engineering contact angle fracture water imbibition...

... in wettability and none have yet been assessed. Shale samples were first aged via immersion in dead Eagle Ford crude oil at high temperature to attain oil-wet characteristics. The contact angle of water drops on the shale exposed to air was then measured to verify oil-wetness. The shale was then immersed...

... was prepared based on the field data available. The wettability alteration by a 3p solution in RB (3pRB) was studied by measuring contact angles of oil droplets on polished calcite pieces that were oil-aged at 347 K. After the contact-angle experiment, 3pRB was studied further for oil recovery from oil-aged...

... is identified via imaging to be clay mineral pores coated with organic matter. Water/oil displacement results indicate that the samples are water-wet, an opposite conclusion to the common concept for shale that organic matter is oil-wet. The sessile drop method, a commonly-used method for contact angle...

... carbon content. The contact angle of water droplet on kerogen increased by 78° and 30° when the aromatic carbon concentration increased by 19% and 16% in formations A and B, respectively. We also quantified the wettability in mudrock core samples and showed that there was a 5° increase in contact angle...

... Abstract Identifying contact angles in porous media is essential for characterizing multiphase flow of fluids in reservoirs. Traditional methods to measure contact angles assume a homogenous structure of reservoir rock; however, microscale pictures by Scanning Electron Microscopes (SEM) show...

... Upstream Oil & Gas mg 2 enhanced recovery adhesion ion zeta potential oil droplet force curve concentration contact angle mgcl 2 Oil Recovery waterflooding force measurement cacl 2 calcite surface salt solution NaCl solution wettability alteration chalk surface...

... Characterization hydraulic fracturing fracture aperture Upstream Oil & Gas roughness Artificial Intelligence Fluid Dynamics Simulation composition saturation unconventional resource technology conference contact angle wettability fracture imbibition Water Resource Research capillary pressure...

... workflow. This study provides a complete workflow on assessing the effectivity of SASI which consists of three big parts: laboratory experiments, lab-scale modelling, and field-scale modelling. On the laboratory experiment, interfacial tension, contact angle, zeta potential, surfactant adsorption isotherm...

... 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...