摘要:
埕海潜山奥陶系碳酸盐岩储层裂缝十分发育,非均质性强。以地震、钻井、测井和室内分析化验资料研究为基础,深入分析碳酸盐岩储层岩性特征、储集空间特征,明确裂缝性储层发育和分布的控制因素。从叠后地震资料出发,采用地震属性技术和地震反演技术2种地震方法,优选方差体属性、振幅包络属性和频率衰减属性,对埕海潜山奥陶系碳酸盐岩储层的裂缝、孔洞的发育程度和分布进行平面和空间预测,最终结合构造、烃源岩等控制埕海潜山油气成藏的因素,确定碳酸盐岩裂缝型储层的有利区带。
Abstract:
Fractures are well developed in the Ordovician carbonate reservoir of the Chenghai buried hill, making the reservoir strongly heterogeneous. Based on the data of seismics, well drilling, well logging, and indoor analyses and testing, a thorough study of carbonate reservoir lithology and reservoir space has been carried out for revealing the controlling factors of reservoir development and distribution. Starting from the stacked seismic data, we predict the fractures and pores in plane and space using seismic attribute technique and seismic inversion technique with optimized seismic attributes as variance cube, amplitude enveloping and attenuation gradient. Combined with oil-gas reservoir forming controlling factors of the Chenghai buried hill, we finally determine the most favorable zones of the carbonate fracture reservoir.
下载:
