摘要
埋藏方式对于储层压实作用的制约效应非常明显,但其定性描述无法精确反映其所涵盖的诸多因素。由此引入时—深指数(TDI指数),是对储层埋藏历史中时间、温度和埋藏压力三者的综合表征,并以定量形式揭示埋藏方式的差异。以库车坳陷白垩系砂岩储层为例,探讨TDI指数对于储层粒间体积的制约效应,两者呈现明显的相关性,表明TDI指数不仅可以较好地表征储层埋藏方式的差异,也对于储层储集物性有着特殊的预测效果。
The controls of burial mode on sandstone reservoirs compaction effect were obvious. But the qualitative description of burial mode couldn＇t reflect many factors contained by burial mode accurately. The TDI index,which integrated these factors,such as ＂time＂ ,＂ temperature＂ and ＂pressure＂ during burial history, was used to express the differentiation of burial mode quantificationally. Exemplified by Cretaceous Bashijiqike formation in Kuqa depression,there were clear relativity between TDI index （ Ma ~ km） and reservoir intergranular volume （ % ）, which indicated that TDI index did not only characterize the differentiation of burial mode quantificationally,but also was used to predict reservoirs quality.
出处
《地质科学》
CAS
CSCD
北大核心
2010年第3期844-852,共9页
Chinese Journal of Geology(Scientia Geologica Sinica)
基金
国家重点基础研究发展规划项目(编号:2006CB202304)
长江大学科研发展基金项目联合资助
关键词
库车坳陷
埋藏方式
储层物性
时一深指数定量评价
Kuqa depression, Burial mode, Reservoirs quality, TDI index, Quantitative evaluation
