海相油气地质2018，Vol.23Issue(1)：47-55,9.DOI:10.3969/j.issn.1672-9854.2018.01.006
埋藏期"断溶体"的储集特征、成因及发育规律——以塔中十号带奥陶系良里塔格组岩溶储层为例
Origin,Development and Features of the"Fault-dissolved body"Reservoir Formed in Burial Stage:A Case Study of Upper Ordovician Lianglitage Formation in Tarim Basin,Northwest China
摘要
Abstract
The"fault-dissolved body"formed in burial stage is an important reservoir in the exploration of carbonate in Tarim Basin, but it has been studied weakly. Taking Tazhong 10th Belt as an example, based on the analysis of cores, thin-sections, well-logging, and seismic data, it has been known that fault-dissolved bodies formed in burial stage are fracture-cavern reservoirs. Petrographic and geochemical analysis on the fracture-fillings revealed that the fault-dissolved bodies are closely related to the burial dissolution.Simulation experiment on the burial dissolution and distribution of fault-dissolved bodies suggest that the development of them is controlled by faults and pre-existing porous zones, which with both fault-controlled features and strata-controlled features. It has been concluded that the prediction of fault-dissolved reservoir should focus on characterizing the distribution of pre-existing porous zones which related to the unconformities and/or the variable lithologic layers.关键词
塔里木盆地/塔中地区/奥陶纪/断溶体/储层特征/储层成因/储层发育规律Key words
Fault-dissolved body/Reservoir feature/Reservoir origin/Reservoir development/Ordovician/Tazhong area/Tarim Basin分类
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邓兴梁,乔占峰,王彭,常少英,何军,李维岭,赵龙飞,李昌..埋藏期"断溶体"的储集特征、成因及发育规律——以塔中十号带奥陶系良里塔格组岩溶储层为例[J].海相油气地质,2018,23(1):47-55,9.基金项目
本文受国家科技重大专项"大型油气田及煤层气开发"(编号:2016ZX05004)和中国石油重大科技专项"深层油气勘探开发关键技术研究"(编号:2014E-32)资助 （编号:2016ZX05004）
