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通过对油房庄地区长8储层孔隙结构的研究,发现该区储层的孔隙中孔隙和小孔隙为主,粒间孔和长石溶孔作为重要的储集空间。吼道已缩颈型和片状喉道为主,其次是弯曲状河道和孔隙缩小型喉道。储层排驱压力、中值压力逐渐降低,中值半径、最大进汞饱和度、退汞效率、平均孔径逐渐增大,储层物性逐渐变好。
Through the study on the pore structure of Chang 8 reservoir in Youfangzhuang area, it is found that the pores and small pores in the reservoir are the main reservoirs in this area, and the intergranular pores and feldspar dissolved pores are important reservoir space. Roar has been narrow-necked and lamellar throat, followed by curved river and pore shrinkage throat. The reservoir pressure and medium pressure gradually decrease. The median radius, maximum mercury intrusion, mercury removal efficiency and average pore diameter gradually increase, and the physical properties of the reservoir gradually get better.