Results 1 to 10 of about 24,512 (240)

Preparation of Oil-Based Foam Gel with Nano-SiO2 as Foam Stabilizer and Evaluation of Its Performance as a Plugging Agent for Fractured Shale

open access: yesGeofluids, 2022
The development of natural fracture will lead to lost circulation, which will be likely to cause economic losses and reduce drilling efficiency. In order to solve this problem, an oil-based pressure-bearing foam gel plugging agent for fractured shale was
Daqi Li   +5 more
doaj   +1 more source

Calculation Model of Relative Permeability in Tight Sandstone Gas Reservoir with Stress Sensitivity

open access: yesGeofluids, 2021
During the development of tight gas reservoir, the irreducible water saturation, rock permeability, and relative permeability change with formation pressure, which has a significant impact on well production.
Jin Yan   +4 more
doaj   +1 more source

Oil shale, shale oil, shale gas and non-conventional hydrocarbons [PDF]

open access: yesEPJ Web of Conferences, 2015
In recent years there has been a world “revolution” in the field of unconventional hydrocarbon reserves, which goes by the name of “shale gas”, gas contained inside clay sediments micropores. Shale gas finds particular development in the United States, which are now independent of imports and see a price reduction to less than one third of that in ...
Clerici A., Alimonti G.
openaire   +2 more sources

A salt-induced viscosifying smart polymer for fracturing inter-salt shale oil reservoirs

open access: yesPetroleum Science, 2019
Inter-salt shale oil reservoirs located between two salt layers are always accompanied by high temperature and high salinity. However, the present commonly used water-soluble polymers in fracturing fluids suffer from poor tolerance to high temperature ...
Xian’e Li   +5 more
doaj   +1 more source

PINN-Based Method for Predicting Flow Field Distribution of the Tight Reservoir after Fracturing

open access: yesGeofluids, 2022
The physical-informed neural network (PINN) model can greatly improve the ability to fit nonlinear data with the incorporation of prior knowledge, which endows traditional neural networks with interpretability.
Jun Pu   +5 more
doaj   +1 more source

Advances in the basic study of lacustrine shale evolution and shale oil accumulation

open access: yesShiyou shiyan dizhi, 2020
This manuscript provides a review of the recent advances in the study of fundamental processes and geological drivers involved in the lacustrine shale deposition, burial diagenesis, thermal maturation and in-situ oil accumulation, aimed at identifying ...
Maowen LI   +10 more
doaj   +1 more source

A compositional model for CO2 flooding including CO2 equilibria between water and oil using the Peng–Robinson equation of state with the Wong–Sandler mixing rule

open access: yesPetroleum Science, 2019
This paper presents a three-dimensional, three-phase compositional model considering CO2 phase equilibrium between water and oil. In this model, CO2 is mutually soluble in aqueous and hydrocarbon phases, while other components, except water, exist in ...
Zhong-Lin Yang   +4 more
doaj   +1 more source

Fenton-like oxidation of Hydroxypropyl guar gum catalysed by Cu(II) complex at high pH [PDF]

open access: yesE3S Web of Conferences, 2021
Large amounts of wastewater containing hydroxypropyl guar gum (HPGG), polyacrylamide (PAM) and carboxymethyl cellulose (CMC) are produced in the process of fracturing.
Ni Weijun   +6 more
doaj   +1 more source

Lithofacies types, reservoir characteristics and silica origin of marine shales: A case study of the Wufeng formation–Longmaxi Formation in the Luzhou area, southern Sichuan Basin

open access: yesNatural Gas Industry B, 2022
Shale, which is a fine-grained sedimentary rock, differs in reservoir quality (RQ) and completion quality (CQ) as the result of variations in its mineral and organic-matter compositions. The RQ and CQ directly affect shale gas exploitation.
Shuyan Wang   +6 more
doaj   +1 more source

3D-porous-GAN: a high-performance 3D GAN for digital core reconstruction from a single 3D image

open access: yesJournal of Petroleum Exploration and Production Technology, 2023
The 3D digital rock technology is extensively utilized in analyzing rock physical properties, reservoir modeling, and other related fields. This technology enables the visualization, quantification, and analysis of microstructures in rock cores, leading ...
Xiangchao Shi   +3 more
doaj   +1 more source

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