Plugging behaviors of temporary plugging particles in hydraulic fractures
April 2023
Using the visualized experimental device of temporary plugging in hydraulic fractures, the plugging behaviors of temporary plugging particles with different sizes and concentrations in hydraulic fractures...
Share article
“Extreme utilization” theory and practice in gas storages with complex geological conditions
April 2023
Based on more than 20-year operation of gas storages with complex geological conditions and a series of research findings, the pressure-bearing dynamics mechanism of geological body is revealed. With...
Share article
New understanding and exploration direction of hydrocarbon accumulation in Termit Basin, Niger
April 2023
Based on the seismic and drilling data, casting thin sections, geochemical analysis of oil and rock samples, and hydrocarbon generation history simulation, the hydrocarbon accumulation characteristics...
Share article
Enhanced history matching process by incorporation of saturation logs as model selection criteria
April 2023
This paper proposes a methodology for an alternative history matching process enhanced by the incorporation of a simplified binary interpretation of reservoir saturation logs (RST) as objective function....
Share article
Control of micro-wettability of pore-throat on shale oil occurrence: A case study of laminated shale of Permian Lucaogou Formation in Jimusar Sag, Junggar Basin, NW China
April 2023
The control of micro-wettability of pore-throat on shale oil occurrence in different types of reservoir spaces remains unclear. Take the shale oil reservoir of the Permian Lucaogou Formation in the...
Share article
Pump-stopping pressure drop model considering transient leak-off of fracture network
April 2023
By introducing the coupling flow expressions of main fracture-matrix, secondary fracture-matrix and main fracture-secondary fracture into the traditional main fracture material balance equation, the...
Share article
Automatic measurement of three-phase contact angles in pore throats based on digital images
April 2023
With the help of digital image processing technology, an automatic measurement method for the three-phase contact angles in the pore throats of the microfluidic model was established using the microfluidic...
Share article
Structural features and exploration targets of platform margins in Sinian Dengying Formation in Deyang—Anyue Rift, Sichuan Basin, SW China
April 2023
Based on the seismic, logging, drilling and other data, the distribution, structural types and mound-shoal hydrocarbon accumulation characteristics of platform margins of the Sinian Dengying Formation...
Share article
Upper Paleozoic total petroleum system and geological model of natural gas enrichment in Ordos Basin, NW China
April 2023
Based on the analysis of Upper Paleozoic source rocks, source-reservoir-caprock assemblage, and gas accumulation characteristics in the Ordos Basin, the gas accumulation geological model of total petroleum...
Share article
A CO2 storage potential evaluation method for saline aquifers in a petroliferous basin
April 2023
According to the requirements for large-scale project implementation, a four-scale and three-level CO2 storage potential evaluation method is proposed for saline aquifers in a petroliferous basin in...
Share article
Heterogeneity and differential hydrocarbon accumulation model of deep reservoirs in foreland thrust belts: A case study of deep Cretaceous Qingshuihe Formation clastic reservoirs in southern Junggar Basin, NW China
April 2023
Using the data of drilling, logging, core, experiments and production, the heterogeneity and differential hydrocarbon accumulation model of deep reservoirs in Cretaceous Qingshuihe Formation (K1q) in...
Share article
Production evolution patterns and development stage division of waterflooding oilfields
April 2023
The continuous growth of recoverable reserves in a waterflooding oilfield has a significant impact on the patterns of production evolution. A new production evolution model is established by improving...
Share article
Geological characteristics of the southern segment of the Late Sinian—Early Cambrian Deyang—Anyue rift trough in Sichuan Basin, SW China
April 2023
Based on the latest drilling, seismic and field outcrop data, the geological characteristics (e.g. strata, development and sedimentary evolution) of the southern segment of the Late Sinian—Early Cambrian...
Share article
Theoretical and technical progress in exploration practice of the deep-water large oil fields, Santos Basin, Brazil
April 2023
The history and results of petroleum exploration in the Santos Basin, Brazil are reviewed. The regularity of hydrocarbon enrichment and the key exploration technologies are summarized and analyzed using...
Share article
Formation and evolution of the strike-slip faults in the central Sichuan Basin, SW China
April 2023
Based on 3D seismic and drilling data, the timing, evolution and genetic mechanism of deep strike-slip faults in the central Sichuan Basin are thoroughly examined by using the U-Pb dating of fault-filled...
Share article
Sedimentary architecture and distribution of intra-platform shoal in sequence framework of Permian Changxing Formation in central Sichuan Basin, SW China
April 2023
Based on the comprehensive analysis of core, thin section, logging and seismic data, this study carried out the identification and comparison of Permian Changxing Formation sequences, clarified the...
Share article
Rock physics model for velocity—pressure relations and its application to shale pore pressure estimation
April 2023
Acoustic wave velocity has been commonly utilized to predict subsurface geopressure using empirical relations. Acoustic wave velocity is, however, affected by many factors. To estimate pore pressure...
Share article
Sequence structure, sedimentary evolution and their controlling factors of the Jurassic Lianggaoshan Formation in the East Sichuan Basin, SW China
April 2023
Based on the data of outcrops, seismic sections, thin sections, heavy mineral assemblages and detrital zircon U-Pb dating, the sedimentary characteristics, lake level fluctuation and provenance characteristics...
Share article
Forecast of natural gas supply and demand in China under the background of “Dual Carbon Targets”
April 2023
As a kind of clean energy which creates little carbon dioxide, natural gas will play a key role in the process of achieving “Peak Carbon Dioxide Emission” and “Carbon Neutrality”. The Long-range Energy...
Share article
Reformation of deep clastic reservoirs with different diagenetic intensities by microfractures during late rapid deep burial: Implications from diagenetic physical simulation of Cretaceous Qingshuihe Formation in the southern margin of Junggar Basin, NW China
April 2023
Constrained by the geological burial history of Cretaceous Qingshuihe Formation in the southern margin of Junggar Basin, the diagenetic physical simulation experiment was carried out with the low-mature...
Share article
“Rigid-elastic chimera” pore skeleton model and overpressure porosity measurement method for shale: A case study of the deep overpressure siliceous shale of Silurian Longmaxi Formation in southern Sichuan Basin, SW China
February 2023
Based on analysis of pore features and pore skeleton composition of shale, a “rigid elastic chimeric” pore skeleton model of shale gas reservoir was built. Pore deformation mechanisms leading to increase...
Share article
Complex fracture propagation model and plugging timing optimization for temporary plugging fracturing in naturally fractured shale
February 2023
In this paper, a viscoelasticity-plastic damage constitutive equation for naturally fractured shale is deduced, coupling nonlinear tensile-shear mixed fracture mode. Dynamic perforation-erosion on fluid...
Share article
Porosity, permeability and rock mechanics of Lower Silurian Longmaxi Formation deep shale under temperature-pressure coupling in the Sichuan Basin, SW China
February 2023
To investigate the porosity, permeability and rock mechanics of deep shale under temperature-pressure coupling, we selected the core samples of deep shale from the Lower Silurian Longmaxi Formation...
Share article
Organic matter transformation ratio, hydrocarbon expulsion efficiency and shale oil enrichment type in Chang 73 shale of Upper Triassic Yanchang Formation in Ordos Basin, NW China
February 2023
The major enrichment type of shale oil in the Chang 73 shale of Upper Triassic Yanchang Formation in the Ordos Basin is unknown. This paper analyzes the organic matter transformation ratio, hydrocarbon...
Share article
A 3D attention U-Net network and its application in geological model parameterization
February 2023
To solve the problems of convolutional neural network–principal component analysis (CNN-PCA) in fine description and generalization of complex reservoir geological features, a 3D attention U-Net network...
Share article