Effectiveness evaluation of natural fractures in Xujiahe Formation of Yuanba area, Sichuan basin, China
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DOI: 10.1007/s12517-019-4292-5
Abstract: The effectiveness of natural fractures restricts petroleum exploration and development of tight gas sandstone reservoirs. Taking Xujiahe Formation in Yuanba area of Sichuan basin as an example, the effectiveness of natural fractures is studied by… read more here.
Keywords: xujiahe formation; yuanba area; formation yuanba; formation ... See more keywords
Formation mechanism of tight coal-derived-gas reservoirs with medium-low abundance in Xujiahe Formation, central Sichuan Basin, China
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DOI: 10.1016/j.marpetgeo.2017.06.032
Abstract: Although Xujiahe Formation source rocks in the central Sichuan Basin, China were determined to have low gas-generation intensity, several large-scale gas fields have been found associated with this formation. Thus origins and formation mechanisms of… read more here.
Keywords: xujiahe formation; central sichuan; water; gas ... See more keywords
Geochemical characteristics and organic matter enrichment mechanism of black shale in the Upper Triassic Xujiahe Formation in the Sichuan basin: Implications for paleoweathering, provenance and tectonic setting
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DOI: 10.1016/j.marpetgeo.2019.06.057
Abstract: Abstract The first, third and fifth members (henceforth referred to as T 3 x 1 , T 3 x 3 and T 3 x 5 , respectively) of the Upper Triassic coal-bearing Xujiahe Formation black… read more here.
Keywords: xujiahe formation; black shale; basin; upper triassic ... See more keywords
川东北马路背地区裂缝对须二段储层的影响 The Fracture Effects on Reservoir in the Second Member of the Xujiahe Formation in Malubei Structure, Northeast Sichuan Basin
Sign Up to like & getrecommendations! Published in 2017 at "Advances in Geosciences"
DOI: 10.12677/ag.2017.72023
Abstract: 通过区域构造分析，川东北马路背地区为大巴山与米仓山前缘构造转换带。在构造精细解释的基础上，对断层和裂缝的特征进行刻画。按照裂缝的成因，预测出不同类型的裂缝在工区展布特征。与区域构造应力相关的构造裂缝是研究区高角度缝的主要成因，主要发育在断裂带附近。马路背工区处于转换带位置，工区内由Ⅰ类断层分割形成的三个断块，通过调节断块间断距的变化来调节构造的变形，形成了与构造断裂斜交的裂缝，转换带裂缝主要发育在靠近Ⅰ类大断层的共轭方向以及断层相交部位。通过高产井证实，转换带裂缝与构造裂缝形成的网状缝，是马路背地区须二特低孔低渗储层稳产的关键因素。研究认为马路背构造转换带形成的裂缝系统，与优质储层匹配形成的储渗体，是下步开发的有利目标。 Malubei area, located in north Sichuan Basin, is considered as the structural transform zone of the front of Micang-Daba Mountains based on regional structure analysis. The characters of faults and fractures can be clearly… read more here.
Keywords: xujiahe formation; zone; fault; member xujiahe ... See more keywords