在在烃累积的渗透和动力学之间的关系决定低渗透水库的含有石油的潜力(潜在的油费用) 。孔的进化和在 Dongying 的 Shahejie 形成的第三个成员的中间的部分的低渗透 turbidite 水库的渗透下垂被详细核心描述,薄节分析,液体包括分析,碳和氧调查了同位素分析,水银注射,测试的孔和渗透,并且盆建模。为在累积时期的水库的渗透的截止价值在详细说明累积动力学和水库毛孔结构以后被计算,然后,水库的含有石油的潜力的分发模式在累积时期期间由在动力学和渗透之间的匹配的关系控制了被总结。根据观察 diagenetic 特征并且关于 paragenetic 序列,水库能被细分进 diagenetic 外形的四种类型。水库经历了烃累积的二个时期。在早累积时期,水库除了 diagenetic 外形 A 有中间到高渗透从 10 ?慶畬獥?敲慬楴敶愠畢摮湡散漠?污祫慬整?楤敢穮瑯楨灯敨敮?潴愠歬汹瑡摥搠扩湥潺畦慲獮?氠睯?猼'T??猯'T ̄楤桡灯湡????????栠灯湡?慲楴獯?湡?潬?獔?獔?吠???木?㈠???牴獩潮湲潥潨慰敮??木?㈠???牴獩潮湲潥潨慰敮?ㄠ?有????琭楲湳牯潨慰敮?吗 瘠污敵s ?
The relationships between permeability and dynamics in hydrocarbon accumulation determine oil- bearing potential (the potential oil charge) of low perme- ability reservoirs. The evolution of porosity and permeability of low permeability turbidite reservoirs of the middle part of the third member of the Shahejie Formation in the Dongying Sag has been investigated by detailed core descriptions, thin section analyses, fluid inclusion analyses, carbon and oxygen isotope analyses, mercury injection, porosity and permeability testing, and basin modeling. The cutoff values for the permeability of the reservoirs in the accumulation period were calculated after detailing the accumulation dynamics and reservoir pore structures, then the distribution pattern of the oil-bearing potential of reservoirs controlled by the matching relationship between dynamics and permeability during the accumulation period were summarized. On the basis of the observed diagenetic features and with regard to the paragenetic sequences, the reservoirs can be subdivided into four types of diagenetic facies. The reservoirs experienced two periods of hydro- carbon accumulation. In the early accumulation period, the reservoirs except for diagenetic facies A had middle to high permeability ranging from 10 × 10-3 gm2 to 4207 × 10-3 lain2. In the later accumulation period, the reservoirs except for diagenetic facies C had low permeability ranging from 0.015 × 10-3 gm2 to 62× 10-3 -3m2. In the early accumulation period, the fluid pressure increased by the hydrocarbon generation was 1.4-11.3 MPa with an average value of 5.1 MPa, and a surplus pressure of 1.8-12.6 MPa with an average value of 6.3 MPa. In the later accumulation period, the fluid pressure increased by the hydrocarbon generation process was 0.7-12.7 MPa with an average value of 5.36 MPa and a surplus pressure of 1.3-16.2 MPa with an average value of 6.5 MPa. Even though different types of reservoirs exist, all can form hydrocarbon accumulations in the early accumulation per- iod. Such