学术论文

      射洪~西充地区大安寨段油气富集规律及有利区分析

      Hydrocarbon Accumulation and Favorable Objectives in Da'anzhai Member of Shehong-Xichong Area

      摘要:
      综合利用地质、地震、测井、录井以及分析化验等资料,结合野外剖面、岩心、薄片及扫描电镜观察等手段,对川中射洪~西充地区大安寨段油气富集规律及有利区进行研究.研究表明:研究区为低孔低渗裂缝性储层,储层岩性主要为介壳灰岩和含泥介壳灰岩;储集空间为原生粒间孔、次生溶蚀孔洞以及裂缝,裂缝以构造缝为主,裂缝的发育极大的增加了储层渗流能力;通过地震、测井及录井响应,定性分析裂缝带主要分布在文12井区~充西区块以及明月~一立场区块;油气富集受多种因素的控制,其中构造作用最大,高产井主要受构造应力的控制,构造运动的强弱控制着油气的分布,裂缝发育是高产的前提;最终确定了研究区下步的勘探方向.
      Abstract:
      Hydrocarbon accumulation and favorable objectives in Da'anzhai Member of Shehong-Xichong area have been investigated through field section, cores, thin sections and scanning electron microscope and comprehensive utilization of geological, seismic, logging, logging and testing data. It shows that it is the low porosity low permeability reservoir, lithology is mainly about shell limestone and mud shell limestone; Reservoir space of primary intergranular pore, secondary solution pores and fractures, fractures is given priority to structural fractures, which increased the seepage ability of the reservoir;Through seismic, logging and logging response, fractured zone mainly distributes in W12 well block-Chongxi area and Mingyue-Yilichang block; Oil and gas accumulation is controlled by many factors, while structure effect is the best, high yield well mainly controlled by tectonic stress, the strength of the tectonic movement controls the distribution of oil and gas, Fracture development is the precondition of high yield;Finally the next step prospecting direction is determined in the study area.
      作者: 邓真真 林峰
      Author: Deng Zhenzhen Lin Feng
      作者单位: 西南石油大学地球科学与技术学院,成都,610500
      刊 名: 科技通报 ISTICPKU
      年,卷(期): 2017, 33(12)
      分类号: P618.130.2
      在线出版日期: 2018年1月15日
      基金项目: 国家电网公司智能用电环节碳排放项目资助,中央高校基本科研业务费专项资金资助