四川盆地高石梯构造灯影组四段溶蚀孔洞型储层类型及组合模式

发布时间：2018-05-01 21:55

本文选题：岩溶储层 + 组合模式　；参考：《天然气地球科学》2017年08期

【摘要】：震旦纪高石梯构造位于四川盆地绵竹—长宁克拉通内裂陷东侧的台地边缘带,发育藻灰泥丘、砂屑滩及云坪,同时受震旦纪末期桐湾Ⅱ幕构造运动的抬升暴露剥蚀并形成岩溶风化壳。灯四段为溶蚀孔洞型白云岩储层,主要储集空间有溶洞、溶孔及晶间孔。在岩心、成像测井和常规测井对溶蚀孔洞型储层的定量判识基础上,划分洞穴型、孔洞型、孔隙型、裂缝—孔洞型、裂缝—孔隙型和裂缝型6类储集空间。在纵向上,根据储集空间类型及其组合特征提出洞穴—孔洞型、裂缝—孔洞型、孔洞型、裂缝—孔隙型、裂缝型5类储层组合模式。其中洞穴—孔洞型、裂缝—孔洞型为高产长期稳产型,是最好的储层组合类型;孔洞型为中产长期稳产型;裂缝—孔隙型和裂缝型则为高产短期稳产型。
[Abstract]:The Gaoshitian structure of the Sinian period is located in the platform margin of the eastern side of the Mianzhu-Changning craton depression in Sichuan Basin, where algal ash mounds, sand banks and Yunping are developed. At the same time, it was exposed and denuded by the uplift of the second act tectonic movement of Tongwan in the late Sinian and formed karst weathering crust. The fourth section is a dolomite reservoir with dissolved pores and intergranular pores, and the main reservoir spaces are karst holes and intergranular pores. On the basis of quantitative identification of core, imaging logging and conventional logging, six types of reservoir spaces are divided into cave type, pore type, fracture-pore type and fracture type. Vertically, according to the reservoir space types and their assemblage characteristics, five types of reservoir assemblage models are proposed: cave-hole type, fracture-hole type, pore type, fracture-pore type and fracture type. The cave-hole type, the fracture-pore type, the high-yield and long-term stable production type, the middle yield long-term stable production type, the fracture-pore type and the fracture type are the high-yield and short-term stable production type, which are the best reservoir assemblage type.
【作者单位】：中国石油勘探开发研究院;中国石油西南油气田分公司勘探开发研究院;
【基金】：中国石油股份公司深层油气重大专项“深层油气藏开发关键技术”(编号:2014E-3203)资助
【分类号】：P618.13

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