苏里格南区马五41储层特征及控制因素  

Characteristics and Controlling Factors of Mawu_4~1Reservoir in South Block,Sulige Gasfield

作　　者：张岳华[1] 雷卞军[1] 杨勇[2] 贾云武 

机构地区：[1]西南石油大学,四川成都610500 [2]中国石油长庆油田公司勘探开发研究院,陕西西安710021 [3]中国石油西部钻探工程有限公司测井公司,新疆克拉玛依834000

出　　处：《天然气技术与经济》2013年第5期20-22,27,共4页Natural Gas Technology and Economy

摘　　要：通过岩心、薄片、测井和试采等资料对苏里格南区马五41储层特征和控制储层的构造作用、沉积作用、成岩作用和古地貌进行了研究。研究表明:苏南马五41储层发育于顶部的石膏结核白云岩,储集空间主要为石膏结核溶孔和裂缝;构造作用控制了沉积、成岩和成藏,低幅度构造对气水分布有一定的控制作用,对储层物性也有一定的影响;沉积微相中的潮上带(含)膏质云坪最有利于储层发育;对孔隙起建设性的成岩作用主要是准同生期白云石化作用和膏化作用、表生期岩溶作用、埋藏期溶解作用、破裂作用;风化剥蚀差异大、岩溶作用强的地区有利于后期埋藏溶解作用和天然气的运移、聚集。For Mawu4 1reservoir in south block of Sulige gasfield, its characteristics, and tectonism, deposition, diagenesis and palaeotopography which can control this reservoir are analyzed according to some data from core and thin-section analysis, well logging and production testing. Results show that(1)the reservoir is developed at the top of gypsum nodule dolomite, and reservoir space mainly contains gypsum nodule dissolved pore and fracture;(2)tectonism controls deposition, diagenesis and forming reservoir, and low-amplitude structure may control not only the gas and water distribution but also the physical property;(3)among sedimentary microfacies, the supratidal zone(containing)gypseous dolomite flat is the most favorable for reservoir growth;(4)diagenesis constructive to pore mainly includes penecontemporaneous dolomitization, epidiagenesis, and dissolution and fracturing during burial period;and(5)some regions which have not only large difference between weathering and erosion but also strong dissolution, are favorable for burial dissolution and gas migration and accumulation.

关 键 词：苏里格南区 马五41 储层特征 控制因素 

分 类 号：P618.130.21[天文地球—矿床学]