山东渤南油田三区下第三系沙河街组三段4砂组储渗结构特征研究

STUDY OFTHE CHARACTER OF THE STRUCTURE OF RESERVOIR PERMEATOR OF S_3~4 SAND GROUP OF LOWER TERTIARY IN 3TH AREA OF BONAN OIL FIELD,SHANDONG

渤南油田低渗透储层是胜利油田较为典型的低渗透储层代表。离物源近、沉积物供给和沉积速率快是造成渤南油田储层低渗透的重要基础 ,复杂的成岩作用是导致低渗透储层非均质性的主要成因之一 ,其中溶解成岩作用形成的多种次生孔隙 ,使低渗透储层的孔隙度提高。储层岩性。

The low permeable resrevoir of Bonan Oil Field is a typical low permeable reservoir in Shengli Oil Field.The short source of sediment,the fast speed of supply and deposits are important bases for the low permeation of Bonan Oil Field.One of the main origins of heterogentity of low permeable reservoirs is the complex diagenesis.There are a lot of induced pores by disslution in the reservoir with increasing porosity.These petrological charactes,physical properties and cracks of reservoirs form fine reservoir permeator units in Bonan Oil Field.