石油实验地质2017，Vol.39Issue(6)：797-804,811,9.DOI:10.11781/sysydz201706797
塔里木盆地巴楚地区寒武系肖尔布拉克组储层特征及成因模式
Genetic model and characteristics of the Cambrian Shorebulake reservoir in Bachu area, Tarim Basin
摘要
Abstract
Knowledge of the Cambrian Shorebulake reservoirs in the Bachu area of Tarim Basin is limited at present. Core and microscopic observations as well as geochemical analyses showed that grain dolomites and microcrystalline dolomites are common in the Shorebulake Formation. Reservoir physical properties were obviously influenced by rock structure,and the porosity and permeability of fine?grained and powdery dolomites are the best. The reservoir space in the Shorebulake Formation was mainly composed of intergranular pores, dissolution holes and fractures, with low discharge pressure and fine to medium pore?throats, showing a good reservoir capacity. The diagenetic transformation of the reservoir was dominated by buried dolomitization, and partially affected by hydrothermal activity. The Himalayan movement added fractures to the study area, which enhanced communication of residual pores and helped acid fluid transform reservoirs,increasing reservoir volume to a certain extent and resulting in the present favorable reservoirs. The superimposed area of multi?phase tectonic fractures is considered as a favorable place for the Shorebulake reservoir in the Bachu uplift.关键词
成因模式/白云石化/储层特征/肖尔布拉克组/巴楚地区/塔里木盆地Key words
genetic model/dolomitization/reservoir feature/Shorebulake Formation/Bachu area/Tarim Basin分类
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李斌,彭军,杨素举,夏青松,徐勤琪,郝悦琪..塔里木盆地巴楚地区寒武系肖尔布拉克组储层特征及成因模式[J].石油实验地质,2017,39(6):797-804,811,9.基金项目
油气藏地质及开发工程国家重点实验室基金(PLN201616)和"构造与油气资源"教育部重点实验室基金(TPR-2013-16)资助. （PLN201616）
