大庆杏树岗油田杏六中区储层四维地质建模

4-D geological modeling of Xing 6 Middle Area reservoir in Xingshugang Oilfield of Daqing

么忠文 李忠权

成都理工大学油气藏地质及开发工程国家重点实验室，四川 成都 610059 成都理工大学国土资源部构造成矿成藏重点实验室，四川 成都 610059 中国石油大庆油田有限责任公司第九采油厂，黑龙江 大庆 163853

State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu 610059, China Key Laboratory of Tectonic Controlled Mineralization and Oil Reservoir, Ministry of Land and Resources, Chengdu University of Technology, Chengdu 610059, China No.9 Oil Production Plant, Daqing Oilfield Co. Ltd., PetroChina, Daqing 163853, China

以大庆杏树岗杏六中区储层为例，提出了建立油藏四维地质模型的方法。根据已有资料，完成构造模型和砂体模型建立。在砂体模型约束下，通过将不同时期测井解释成果进行归类，以不同时期水淹测井资料为条件，水淹动态分析结果为指导，采用序贯指示建模方法，完成不同时期水淹地质模型的建立。不同时期的水淹地质模型揭示了地下流体随开发过程的动态变化：总体上，研究区水淹状况由未水淹向中高水淹方向发展；不同区域水淹时期及程度均有差异，注入水水线推进方向和速度上的差异导致局部剩余油气分布差异。模型较好地反映了不同时期的油藏水淹特征，准确揭示了剩余油时空演化和分布特征，为油藏开发调整和剩余油挖潜奠定了基础。

The paper proposes a method of 4?鄄D geological modeling taking Xing 6 Middle Area reservoir in Xingshugang Oilfield as an example. The structural model and sand body model are established based on existing data; then the reservoir performance of different period is analyzed by using the data of waterflooding well under the constrain of sand body model; finally, the waterflooding geological models of different period are built under the constrains of sand body model and using the Sequential Indicator Simulation. The models reveal the oil and water distribution and the characteristics of waterflooding during the production period. Overall, the waterflooded conditions develop from low waterflooding to high waterflooding in study area. There are differences between the waterflooding period and waterflooding degree in different regions, which reflects the difference in development direction and speed of injected water line, resulting in the differences of local residual oil and gas distribution. The model accurately reveals the time and space evolution and distribution characteristics of remaining oil, which lays a foundation for the adjustment of reservoir development and the potential tapping of remaining oil.

10.6056/dkyqt201306016