四川盆地九龙山构造多层系储层叠前描述
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摘要
为了进一步扩大四川盆地九龙山浅层勘探成果,利用九龙山三维地震资料,进行了构造解释、储层预测、流体检测与裂缝预测等一系列技术攻关,取得了以下主要成果:①通过古地貌恢复及地震属性分析,预测了珍珠冲组及须二上亚段有利沉积相带的分布区。②通过拟声波、波阻抗及伽马反演,进行了储层量化预测。珍珠冲组储层主要发育于研究区中部和东南部,须二上亚段储层储层较厚区主要分布在研究区西北一带,其分布规律与实际的地质情况较为吻合。③进行了叠后、叠前含气性及裂缝预测,结果表明各目的层主含气区、裂缝发育区及储层分布区具有较好的重叠性。
To further expand the exploration results in shallow layers of Jiulong Mountain, a series of technology research about structure interpretation, reservoir prediction, fluid detection and fracture forecast are conducted by using 3-D seismic data. Some achievements have been made. Firstly, favorable sedimentary facies distribution is forecasted through paleogeomorphology restoration and seismic attribute analysis. Secondly, thickness, porosity of reservoir is forecasted through pseudo-acoustic inversion, wave impedance inversion, and gamma inversion. Zhenzhuchong reservoirs were mainly developed in the middle and southeast of the study area; the thick area of the upper of the second member of Xujiahe Formation is mainly distributed in the northwest of the study area, of which the distribution law coincides with the geological reality. Thirdly, gas potential and fractures are forecasted with poststack and prestack seismic data. Field application shows that major gas zones and fracture development areas as well as reservoir distribution areas of all target layers own better overlapping features.
To further expand the exploration results in shallow layers of Jiulong Mountain, a series of technology research about structure interpretation, reservoir prediction, fluid detection and fracture forecast are conducted by using 3-D seismic data. Some achievements have been made. Firstly, favorable sedimentary facies distribution is forecasted through paleogeomorphology restoration and seismic attribute analysis. Secondly, thickness, porosity of reservoir is forecasted through pseudo-acoustic inversion, wave impedance inversion, and gamma inversion. Zhenzhuchong reservoirs were mainly developed in the middle and southeast of the study area; the thick area of the upper of the second member of Xujiahe Formation is mainly distributed in the northwest of the study area, of which the distribution law coincides with the geological reality. Thirdly, gas potential and fractures are forecasted with poststack and prestack seismic data. Field application shows that major gas zones and fracture development areas as well as reservoir distribution areas of all target layers own better overlapping features.
引文
四川石油管理局地球物理勘探公司,四川龙岗地区九龙山礁滩储层三维采集处理解释技术攻关,2010。
四川石油管理局川西北气矿,九龙山地区侏罗—二叠系含油气地质条件综合评价及目标评选,2007。
四川石油管理局川西北气矿,米仓山山前带含油气地质研究,2008。
四川石油管理局川西北气矿,九龙山气田须二下亚段开发潜力研究,2008。
四川石油管理局川西北气矿,九龙山地区侏罗—二叠系含油气地质条件综合评价及目标评选,2007。
四川石油管理局川西北气矿,九龙山地区侏罗—二叠系含油气地质条件综合评价及目标评选,2007。
四川石油管理局地球物理勘探公司,四川盆地储层裂缝发育带预测方法研究,2005。
四川石油管理局地球物理勘探公司,广安地区须家河组隐蔽气藏勘探技术现场试验,2007。
四川石油管理局川西北气矿,九龙山地区侏罗—二叠系含油气地质条件综合评价及目标评选,2007。
四川石油管理局川西北气矿,米仓山山前带含油气地质研究,2008。
四川石油管理局川西北气矿,九龙山气田须二下亚段开发潜力研究,2008。
四川石油管理局川西北气矿,九龙山地区侏罗—二叠系含油气地质条件综合评价及目标评选,2007。
四川石油管理局川西北气矿,九龙山地区侏罗—二叠系含油气地质条件综合评价及目标评选,2007。
四川石油管理局地球物理勘探公司,四川盆地储层裂缝发育带预测方法研究,2005。
四川石油管理局地球物理勘探公司,广安地区须家河组隐蔽气藏勘探技术现场试验,2007。
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