碳酸盐岩成岩作用及其对储层的影响——以塔中顺南地区一间房组为例

发布时间：2018-03-19 02:04

  本文选题：一间房组　切入点：碳酸盐岩　出处：《岩性油气藏》2016年05期 　论文类型：期刊论文

【摘要】：为了查清储层发育规律,提高勘探成功率,运用岩心观察、铸体薄片鉴定、阴极发光等手段,结合测井、孔渗等资料,研究了塔中顺南地区奥陶系一间房组碳酸盐岩的储层特征、成岩作用及其对储层发育的影响。结果表明:研究区奥陶系一间房组碳酸盐岩储层的岩石类型主要为颗粒灰岩、微晶灰岩、藻黏结灰岩;储集空间类型以溶蚀孔洞和裂缝为主,为裂缝型和裂缝-孔洞型储层;一间房组储层基质孔隙度最小值为0.20%,最大值为3.90%,平均值为1.52%;渗透率最小值为0.003 m D,最大值为5.84 m D,平均值为0.62 m D,储层基质物性较差,以发育Ⅲ类储层为主;一间房组碳酸盐岩的成岩作用类型复杂多样,主要有胶结作用、压实压溶作用、溶蚀(岩溶)作用、破裂作用等,其中胶结作用是最主要的破坏性成岩作用,溶蚀(岩溶)作用和破裂作用均是主要的建设性成岩作用。
[Abstract]:In order to find out the law of reservoir development and improve the success rate of exploration, the core observation, casting thin section identification, cathodoluminescence and so on are used to combine well logging, pore permeability and other data. The reservoir characteristics, diagenesis and its influence on reservoir development of the Ordovician Yijianfang formation in Shunnan area of Tazhong are studied. The results show that the rock types of the Ordovician Yijianfang formation carbonate reservoir in the study area are mainly granular limestone. Microcrystalline limestone, algal cemented limestone, the reservoir space type is mainly composed of dissolved pores and fractures, which are fracture type and fracture-pore type reservoir. The minimum value of reservoir matrix porosity is 0.20, the maximum value is 3.90, the average value is 1.52.The minimum permeability is 0.003 mm D, the maximum value is 5.84 mm D, the average value is 0.62 mm D, and the physical properties of reservoir matrix is poor, mainly developed type 鈪，

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