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Pore pressureTectonic stressHydraulic fracturePore pressures in the Xujiahe gas-bearing formations are highly overpressured in the western Sichuan basin. The abnormally high overpressure and strong tectonic stress cause very high horizontal stresses. The high in-situ stresses, tectonic stress regimes, ...
Controls of Multi-Scale Fractures in Tight Sandstones: A Case Study in the Second Member of Xujiahe Formation in Xinchang Area, Western Sichuan Depression doi:10.2113/2024/lithosphere_2023_343Different scales of fractures affect the reservoir quality in tight sandstone. There are more studies on ...
This study attempts to gain an in-depth understanding of the diagenetic history and reservoir evolution of the Xujiahe Formation sandstones. The main objectives are to: (1) characterize the composition and textures, authigenic minerals and reservoir petrophysical properties of the sandstones; (2) docu...
Diagenesis of Second Member Reservoir of Xujiahe Formation andIts Influence on the Reservoir Development, Western Sichuan川西地区须家河组二段成岩作用及其对储层发育的影响成岩作用储层须家河组二段川西影响川西地区须家河组二段砂岩的孔隙类型主要以次生孔隙为主,其原生孔隙几乎全部被成岩作用所破坏,其中对...
Xujiahe sandstone in west Sichuan of China which is not only the important gas reservoir and producing pay, but also the one of the most deeply buried and ... LV ZhengXiang,LIU SiBing,吕正祥,... - 《岩石学报》 被引量: 6发表: 2009年 Diagenesis and reservoir quality in tight gas sandsto...
Based on detailed field outcrop profiles and the core drilling observation, combining with the rock color, sedimentary structures, profile structures and log facies, the sedimentary facies of Xujiahe Formation in Maliuchang-Datachang area of southern Sichuan Basin is analyzed. There are two kinds of...
The fluvial-deltaic sandstones of the Upper Triassic Xujiahe Formation are one of the most important targets for unconventional oil and gas exploration in the Sichuan Basin, southwestern China. Because sediment provenance of these sandstones has been confused and debated, we carried out the seismic ...
According to our multiproxy approach, black shale development in the Xujiahe Formation was mainly controlled by the primary productivity level, foreland basin setting, high tectonic subsidence and sedimentation rate and exhibited a limited correlation with water column redox conditions. Through the ...
Xujiahe FormationDiagenesisTighting processCharge historyCoupling relationship between diagenesis and accumulationYuanba–Tongnanba area of Sichuan BasinThe relationship between reservoir tightening time and gas charge period are the key subjects that have not been well solved considering the studies on the ...