摘要
对马岭油田南二区、中一区49口井的沉积环境、沉积微旋回和水淹特征进行了分析，并根据油层的非均质性理论，采用新、老井叠合对比法，弄清了水淹后油层的岩性、物性、电性、含油性、地层水矿化度的变化规律以及块状砂岩和层状砂岩各自的水淹机理和水淹特征。认为块状砂岩油层纵向上水淹程度差异较大，油层中含水期较长；而层状砂岩纵向上水淹程度差异较小。在试油结果上体现为中含水井块状砂岩较多，而层状砂岩较少。块状砂岩有低、中、高含水之分，而层状砂岩只有低、高含水之分。所提出的方法对低渗透油田水淹层测井解释有一定的借鉴意义。
Based on the sedimentary environment, sedimentary cycles, watered-out features and heterogeneity of oil-bearing formationsin Maling oil field, analytical researches have been conducted for 49 wells of S2 and M1 regions by the method ofsuperimposing the new and old well logs. The features of watered-out layers such as lithology, physical properties, electricalbehavior, oil-bearing properties, variations of formation water salinity and water flooding mechanism and properties formassive and layered sandstone reservoirs are rather clearly obtained, which leads to the conclusion that vertical water sweepdifference in massive reservoir is larger than that in layered one, this can be shown by the oil test results, i. e. water-cut oilwells are more in massive reservoir than in layered reservoir, and in the latter there are only existed low and high water-cuts,not like the former with low, middle and high water-cut stages. This method can be used for reference in log interpretation ofwatered-out layers for low permeable oil fields.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
1997年第3期70-73,共4页
Petroleum Exploration and Development
关键词
水淹井
测井解释
马岭油田
水驱油
Water flooded well, Log interpretation, Mechanism, Feature, Maling oil field
