葡萄花油田泥粉层的特征及在注水开发中的作用

Characteristics of Shaly Sandstone of Putaohua Oilfield and Its Effect on Waterflooding

生产实践中发现,葡萄花油田部分泥粉层具有吸水和产液能力。通过对葡萄花油田泥粉层的岩性、物性等方面分析,掌握了该地区的泥粉层物性及其与表内储油层间的相互关系和可利用的条件,确定了葡萄花油田泥粉层的合理注入压力界限,为合理利用泥粉层挖潜和改善开发效果提供了依据。

During production practices, it is found some shaly sandstone reservoirs in Putaohua oilfield can absorb water and produce fluids. Based on the analysis of lithology, physical properties, etc. of shaly sandstone reservoirs in Putaohua oilfield, as well as the interrelation between physical properties and tabulated oil layers, this paper determines the reasonable injection pressure limit for shaly sandstone in Putaohua oilfield. This will be helpful for further development and development results improvement of shaly sandstone reservoirs.