... and Diagenetic Fluid of Algal Dolomites in the Sinian Dengying Formation in Southeastern Sichuan Basin : Science China-Earth Science , Vol. 43 , No. 2 , p. 317 – 328 Fu Suotang , Ma Dade , Chen Yan , , 2016 . New advance of petroleum and gas exploration in Qaidam Basin . Acta Petrolei...

... simulated field-scale models for three different subsurface reservoirs’ compositions (calcite, dolomite, and siderite) to assess the mineral trapping capacity. The base case of a 3D carbonate formation was created. The petrophysical parameters were then upscaled (S w , S g , K, and φ) to capture...

... limestone with variable percentages of dolomite (20 to more than 50%), exhibiting laterally variable micro to miso pore texture. Saturation calculations using conventional open hole logs data shows high uncertainty associated to quantifying movable from bounded fluid and their type. A new real-time...

... and the permeability derived from logs stays within one-fold of standard deviation as compared to the initial 3-fold range of porosity-permeability. We assigned the rock types with three Saturation Height Function (SHF) classes; (unimodal-dolomite, unimodal- limestone & Multimodal-Limestone). The log derived water...

... required the presence of barriers/baffles. Conclusions The reservoir quality of Karachaganak field carbonates results significantly affected by diagenetic processes, in particular by the replacive dolomitization and by the precipitation of anhydrite, modifyingporosity and permeability...

... Abstract Dolomitization, as part of diagenesis of carbonate rocks, may or may not significantly enhance reservoir quality of the altered sediments. In this context, a diagenesis study was performed on Upper Cretaceous reservoir of an onshore oil field, Abu Dhabi, U.A.E. The paper elaborates...

... & Gas Reservoir Characterization shale gas calcite cementation porosity bitumen cement reservoir quality complex reservoir cement cementation diagenesis stained blue dissolution emplacement fracture optical photomicrograph dolomite dolomitization permeability carbonate reservoir...

... are coquinas from the Coqueiro Seco Formation at Sergipe Basin - Alagoas, Brazil, and Silurian dolomites from the Thornton formation, in United States. The rock samples were analyzed for varying brine / air / oil saturations by measuring electrical resistivity and magnetic transverse relaxation time (T2...

.... In this paper, we present results of a suite of two-phase fluid displacement experiments performed on a dolomite core plug. The experiments consist of a series of fluid injections and in-situ CT scans of the core in certain time steps during the drainage and imbibition displacement processes. The fluid phases...

... and microcrystalline dolomite and finally into the upper intertidal facies of macro crystalline dolomite and nodular anhydrite. The digenetic model comprised surface, subtidal, shallow, and deep burial diagenetic events, such as micritization, fringing calcite marine cement, vadose grain leaching, compaction...

... genetic dolomite types exist, including evaporative, mixed evolved sea-water - freshwater and late thermobaric. Defining static rock-type can therefore be problematic due to the highly imbricate diagenetic phases and their various distributions and extensions. A further major difficulty is the spatial...