Capillary pressure (Pc) curves acquired using the Magnetic Resonance Imaging (MRI) technique, call GIT-CAP, have 70-100 data points. This extra data, when compared with traditional porous plate or centrifuge techniques, allows for the interpretation of more information from the Pc curve. In particular, the pore throat size and relative permeability can be extracted. The pore throat size can be ...

Abstract Carbonate reservoir has complex pore structures. At present, the influence of structure on water flooding mechanism carbonate reservoirs is insufficient. In this article, a systematic workflow was designed in combination with scanning electron microscope, particle size, physical properties, and experiments to study effect fine-grained rocks. Due small size strong heterogeneity, acid fr...

We develop an experimental technique that uses computed tomography (CT) scanning to provide high-resolution measurements of aperture distribution and in situ saturation along with capillary pressure and relative permeability for the same roughwalled fracture. We apply this technique to an induced fracture in a cylindrical basalt core undergoing water drainage. We find that the sum of the water ...

Pore-scale X-ray imaging combined with a steady-state flow experiment was used to study the displacement processes during waterflooding in an altered-wettability carbonate, Ketton limestone, more than two orders of magnitude difference pore size between macropores and microporosity. We simultaneously characterized macroscopic local multiphase parameters, including relative permeability, capilla...

Transport of emulsions in porous media is relevant to several subsurface applications. Many enhanced oil recovery (EOR) processes lead to emulsion formation and as a result conformance originating in the flow of a dispersed phase may arise. In some EOR processes, emulsion is injected directly as a mobility control agent. Modeling the flow of emulsion in porous media is extremely challenging due...

Steam-water capillary pressure is of central importance in geothermal reservoir engineering, however it is still poorly known due to the difficulty making direct measurements. To this end, we have conducted experimental and theoretical studies over the past five years and have made significant progress in understanding fundamental steamwater flow. In this paper, we summarize and discuss the res...

Permeability and selectivity of rabbit small intestine were estimated by a perfusion technique after intra-arterial injection of histamine-type mediators and intestinal irradiation. It was shown that the histamine-type mediators caused an increase in capillary permeability which produced an overall moderate increase in transmucosal permeability with a moderate loss of selectivity. Local intesti...

The past two decades of research on Carbon Capture and Storage (CCS) seem to have finally become fruitful as global leaders energy-intensive industries are cooperating materialize CCS projects reach the promised reduction in CO 2 emissions. Traditionally, targeted mostly high permeability sandstone formations, despite numerous carbonate fields undergoing injection for Enhanced Oil Recovery (EOR...

Abstract Different oil displacement experiments conducted on sandstone and carbonate samples show that low salinity water (LSW) injection can reduce the residual saturation (ROS). Recently, surfactant flooding (SF) in combination with (known as (LSS) flooding) is proposed a potentially promising hybrid enhanced recovery (EOR) process. A lower ROS reported for LSS process compared to seen SF or ...

The Carboniferous reservoir KT-II layer in the Eastern margin of Pre-Caspian Basin was formed open platform sedimentary environment and marked by a complicated pore-throats structure. Understanding main controls on carbonate quality is great significance for classification relevant production prediction. This study focuses revealing structure’s fractal characteristics analyzing mercury intrusio...