摘要
白云岩裂缝型储集层预测技术是目前在勘探开发中迫切需要解决的问题。以泌阳凹陷中央深凹区白云岩缝洞油气藏为例,分析了井约束反演技术在裂缝型油藏描述中面临的技术难题,并提出了相应的解决办法。首先从单井储集层划分对比入手,建立储集层沉积模式,在测井曲线校正和子波分析的基础上,进行储集层精细标定、多井约束地震反演和孔隙度约束反演。通过精细解释和综合分析,预测了裂缝型储集层分布范围,刻画了孔隙度空间展布特征,以此为基础在白云岩区新增控制储量991×104t.
Technique for prediction of dolomite fractured reservoir has been quite urgent for petroleum exploration and development in Biyang sag. Taking the dolomite ffactured-vuggy reservoir in Biyang central deep sag area as an example, the key problem of low- constraint inversion application to fractured-vuggy reservoir description is analyzed, and corresponding solutions are suggested. Starting with single well reservoir classification and correlation, the deposition model is firstly developed, and then detailed reservoir calibration, muhiwell constraint seismic inversion and porosity constraint inversion are conducted, based on the well logs correction and the wavelet analysis. Finally, through detailed interpretation and composite analysis, such a reservoir＇s distribution scope is predicted, the porosity distribution features are delineated, by which the newly incremental eontM reserves of 991× 10^4 t have been obtained in this area.
出处
《新疆石油地质》
CAS
CSCD
北大核心
2006年第2期219-222,共4页
Xinjiang Petroleum Geology
关键词
泌阳凹陷
白云岩
反演
裂缝
综合解释
Biyang sag
dolomite
inversion
fracture
comprehensive interpretation
