摘要
目的加快东濮凹陷濮卫洼陷滚动勘探开发。方法运用石油地质综合方法,结合现代测试技术,注意宏观与微观相结合、区域资料与单井数据相结合,分析了沙三中亚段(Es32)储层,并结合沉积相与砂体展布预测了洼陷内有利油气聚集区。结果储层的岩石类型主要为长石质岩屑砂岩和岩屑质长石砂岩,成分成熟度中等,结构成熟度较低,并经历了机械压实作用、胶结作用、交代作用和溶蚀作用;孔隙类型可分原生孔隙、次生孔隙和裂缝(隙);主要为Ⅱ级和Ⅲ级孔隙结构。结论沙三中亚段4砂层组物性最好,洼陷西翼中部和西北部为最有利区块。
Aim For the purpose of petroleum investigation and development in Puwei Sag, Dongpu Depression. By means of comprehensive study on petroleum geology, macroexamination with microexamination and regional with well data as well as modem test technology are combined. The reservoir characteristics of Shabejie Formarion, Eogene in Puwei Sag have been studied, on the studying basis of depositional facies belt and sandstone body distribution, favorable block for oil and gas to accumulate is predicted. Results Feldspar lithic sandstone and lithic feldspar sandstone are main types of reservoir rock, those rocks with moderate maturation in composition and bad maturation in texture, have experienced diagenesis of compaction, cementation, metasomasis and dissolution. Types and characteristics of porosity are affected by the diagenesis. The pore types of reservoir are divided into three types such as the primary pore and secondary pore and fissure. The different pore texture grade has been made out and pore texture grade of the reaches only Ⅱ and Ⅲ grade. Conclusion Evaluation has been carried out for sand-beating beds from Es3^2. It is concluded that the best is thought of as the 4 sand-bearing bed and the most favourable block is in the middle of the west sag and in the northwest.
出处
《西北大学学报（自然科学版）》
CAS
CSCD
北大核心
2005年第6期787-792,共6页
Journal of Northwest University（Natural Science Edition）
基金
国家重点基础研究发展计划"973"基金资助项目(2003CB214601)
