地质科学2013，Vol.48Issue(1)：304-316,13.DOI:10.3969/j.issn.0563-5020.2013.01.021
波斯湾盆地中白垩统Mishrif组碳酸盐岩储层特征及其发育模式
Reservoir characteristics and development model of Middle Cretaceous Mishrif Formation,Persian Gulf Basin
摘要
Abstract
Mishrif Formation is one of the principal carbonate reservoirs in Persian Gulf Basin. The best reservoir conditions occur in rudist-bearing facies, such as rudstone and rudistid packstone/grainstones; other carbonate facies,such as pelagic mudstone/wackestone,bioclastic wackestone and peloidal packstones,are less significant as reservoir rocks. The reservoir spaces are mainly interparticle porosity, intercrystalline, moldic, solution-enhanced porous, fabric selectivity denudation vugs and microporosity. The reservoir is stratified and continuous in lateral,and distribution is controlled by depositional facies boundaries. Tight limestone as flow baffles and barriers distributed within the sequence is the main cause for extremely vertical heterogeneity of the reservoir. Primary deposition, later diagenesis and structural deformation control the porosity development and preservation. The main reservoir facies, such as patch-reefs and rudist shoals, are deposited in carbonate ramp, which distribute directly related to palaeogeomorphology. The cyclicity of the relative sea-level changes controls the migration of reef-shoal facies and diagenetic evolution, which further determine the development of porous layers and tight layers and the feature of significant heterogeneity. The formation of trap well matches the injection of hydrocarbon, which restrains the damages of compaction and cementation to reservoir effectively.关键词
碳酸盐岩/储层/Mishrif组/中白垩统/波斯湾盆地Key words
Carbonate, Reservoir, Mishrif Formation, Middle Cretaceous, Persian Gulf Basin分类
天文与地球科学引用本文复制引用
高计县,田昌炳,张为民,宋新民,王玉玺,刘波..波斯湾盆地中白垩统Mishrif组碳酸盐岩储层特征及其发育模式[J].地质科学,2013,48(1):304-316,13.基金项目
中国石油天然气股份有限公司"十二五"重大科技专项子课题"中东地区碳酸盐岩油藏整体优化部署及提高采收率技术研究与应用"(编号:11.2011E-2501.X.01)和中国石油勘探开发研究院院级课题"礁滩型碳酸盐岩油藏贼层识别与综合表征技术研究"(编号:2012Y-033)资助. （编号:11.2011E-2501.X.01）
