摘要
辽河油区每年都有相当规模的新增储量和新建产能区块，需要进行储量评价和开发前期方案的编制，进行油藏工程计算和油藏研究。但辽河油区的断块油气田具有含油层系多、断块多、油品多和油藏类型复杂、规模小的特点，使得获取各油藏地层条件下的高压物性资料难度很大，有些单元往往缺少实测的地层条件下的高压物性资料。因而在确定地层原油粘度时没有足够的实测地层条件下高压物性资料，不能满足实际生产需要。依据原油粘度的影响因素，结合地层原油粘度与地面原油物性之间的联系，对辽河油区稀油、稠油两种油品５４ 个已开发单元的原油物性进行分析研究，建立了地层原油粘度与地面原油物性间的相关经验公式。新增储量单元只要获得易取的地面原油物性分析资料，就可利用本区（ 油田） 公式很方便地求出地层原油粘度值。文章还对该方法的准确性进行了误差分析，指出了实际应用过程中以不同油田为单元建立相关经验公式效果会更好，相对误差基本在０．６％ ～２０％ 。图１ 表１ 参４（ 苏继红摘）
There are certain amount of new additional reserves and new proved oil blocks discovered annually in Liaohe oil region in which reserve evaluation and preliminary development program are necessary, and reservoir engineering calculation and reservoir studies will be carried out. However, due to the multiple pay zones, multiple blocks, multiple oil properties, complex reservoir types and small size in their areas and reserves it is very difficult to obtain the p V t properties of oil and gas under subsurface conditions in the fault block oil fields in Liaohe oil region; and even no p V t properties of oil under subsurface conditions in some units. Thus, there will be no sufficient actual subsurface p V t data to determine the subsurface oil viscosity to satisfy the production requirements. Therefore, this paper puts forward imperical correlations to obtain formation oil viscosity by using surface properties of oil. After analyzing and studying the physical properties of oils and heavy oil in 54 development units, the relationship is established, which considered the affecting elements of viscosity, between physical parameters of surface and formation oils. It is convenient to determine formation oil viscosity for new block by using this method in
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
1999年第5期53-55,共3页
Petroleum Exploration and Development
关键词
地层
原油
粘度
经验方法
Reserve calculation, Formation, Crude oil viscosity, Experience, Liaohe oil field
