... hydrocarbon potential zones in terms of the petroleum system. The results of these progressive analyses showed that only two zones (C and D) in the Six Hills Formation are considered the most productive zones because they have a large thickness of sand bodies, low-water saturation values, high porosity...

... dual porosity model with restricted interporosity flow. The restricted flow between matrix and fractures is the result of partial secondary mineralization (cementation) within the fractures, which can be visualized as a natural positive skin that reduces the oil flow from the matrix to the fractures...

... government geology europe government machine learning geologist ripp information forecast engineering ensemble smoother petrol history matching ensemble schiozer brazil rock type reservoir characterization spe reservoir evaluation anomaly baseline porosity The ultimate goal of DA...

... resistivity (UDAR) log data, acquired while drilling, to estimate porosity, water saturation, and facies classes around the wellbore. Despite their limited resolution, seismic data integrated with electromagnetic resistivity log measurements improve the description of rock properties by considering...

... siliciclastic-carbonate samples of the upper section of the Xiaganchaigou Formation are mainly formed by dolomite and clay minerals with low siliceous and calcite content. Porosity is relatively low (2.01−9.83%) and positively correlated with dolomite content, thus indicating that the dolomite intercrystalline...

...Vali Mehdipour; Ahmad Reza Rabbani; Ali Kadkhodaie Summary The lateral and vertical variations in porosity significantly impact the reservoir quality and the volumetric calculations in heterogeneous reservoirs. With a case study from Iran’s Zagros Basin Sarvak reservoir in the Dezful Embayment...

... of Mumbai High are producing a good amount of hydrocarbon from 1 to 2 Ω·m resistivity pays. A total of 58 representative core plugs from four different wells were studied to identify the reason for low resistivity and to classify rock facies types and porosity systems using scanning electron microscopy (SEM...

...Isabela D. de Albuquerque; Silvia L. B. Bermudez; Giovanni C. Stael; Claudio Rabe; Christopher Harper Summary This paper describes the study of dissolution and mineralogical alteration caused by saline carbonated water injection (CWI) and its effects on the petrophysical properties (porosity...

... to provide an integrated quantitative evaluation of RFN, porosity, water saturation, permeability, pore throat radius, and capillary pressure. This integration indicates that there is good oil potential in the Middle Cretaceous unconventional tight carbonate in Mexico. fluid dynamics complex reservoir...

...Chenlin Hu; Changcheng Han; Jijun Tian; Zhiqiang Fu; Jinghui Ma; Thomas J. Algeo Summary Tight oil, present in reservoirs of low porosity and permeability, can be regarded as a kind of unconventional resource. The tightening process in this kind of reservoir is controlled by the lithology...

... the multimineral analysis. Other inputs are conductivity of rock components and porosity obtained from laboratory experiments and interpretation of well logs. The petrophysical model considers that brine forms the conductive background to which conductive (e.g., clay, pyrite, and kerogen) and nonconductive (e.g...

... of petrophysical properties around the borehole. This approach assumes that initial water saturation is equal to irreducible water saturation. Based on the calibrated petrophysical models, thousands of invasion conditions were numerically simulated for a wide range of petrophysical properties, including porosity...

... algorithms to support a critical process in reservoir characterization. The Kozeny-Carman equation describes the relationship between permeability and porosity. The equation also involves other characteristics that make the permeability-porosity relationship nonlinear. The Kozeny-Carman equation...

... of any significant success on the implemented projects. This study shows that the key to success is understanding the contribution of natural fractures. This is demonstrated for the case of Chicontepec with a new dual-porosity petrophysical model for naturally fractured laminar shaly sandstone reservoirs...

...A. Mukhametdinova; T. Karamov; E. Popov; A. Burukhin; E. Kozlova; G. Usachev; A. Cheremisin Summary This study summarizes the work conducted as a part of laboratory modeling of in-situ combustion (ISC) experiments on cores from carbonate heavy oil fields. Porosity, permeability, fluid saturation...

...) results in up to two orders of magnitude increase in internal gradients, compared to mixtures with laminated and structural clays (at the same clay mineralogy and content). Moreover, dispersed clay mixtures display larger changes in T 2 LM and porosity as a function of increasing echo time. The results...

... in other naturally fractured reservoirs. Primary (matrix) porosity is intergranular, intragranular, intercrystalline, and moldic. The latter is oolitic and skeletal. On the other hand, secondary porosity corresponds to fractures and vugs. “A” field is characterized by a moderate fracturing intensity...

...Y. Wang; X. R. Zhao; K. X. Li Summary Natural gas production in the Sichuan Basin reached 30 × 10 9 m 3 in 2020, but the shortfall between this and the production goal of 50 × 10 9 m 3 in 2025 requires further exploration. The complex mineralogy and low porosity in tight carbonate reservoirs reduce...

... some reservoir conditions with synthetic packs and for the cases when actual preserved reservoir core material may be available. Studying the relative effects of porosity and packing properties (specific surface area, sand grain distribution, and cementation) on the fuel is essential to evaluating...

... 2 2023 Copyright © 2023 Society of Petroleum Engineers sagd reservoir characterization injection steam-assisted gravity drainage enhanced recovery isc injector complex reservoir oil sand spe reservoir evaluation india in-situ combustion santhal porosity laboratory...