Experiment Scheme Of Subdividing Development Layer Series In Wa 16 Block

Dawa oilfield is tectonoclastic,fault developed and its hydrocarbon bearing interval is quite long. It has always been developed by the method of suit layer system, stepwise upward, commingling injection and production water flooding development which is low separate injection at multi-stages and causes serious interlayer interference, imperfection of injection-production system and unbalance dreserves produced degree. The oilfield is now low and inefficient development stage. In recent years, measures like sidetracked wells, reperforating, layers adjusting and deep profile control and oil displacement technique in Qing5 block have achieved good results, which proved its recovery still can be enhanced. In order to improve development response, it is necessary to carry out experimental study in Wa 16 Block to further enhance the recovery, and explor a new measure to enhance recovery of middle-high-permeability and complex fault block reservoirsof Liaohe oilfield.This thesis first carried on fine reservoir description of the block which is based on sedimentological studies, structural geology and petroleum geology to descript scale, form and reservoir parameters of reservoir. Second modeling the reservoir and analysising dynamic and static data with computer to study the oil-water movement law and ecaluate effect of flooding. Proposed concept and standard of subdividing development layer series at the same time. Demonstrated the material basis and feasibility and evaluated the development potential to study the remaining oil distribution. Finally, it formulated a reasonable and practicable adjustment scheme: 2 verticalwells and3 horizontalwells, 2 test groups and the improved zones are expected to improve the recovery rate of 4 and 2.3.This topic research has a positive significance to improve the Liaohe old incomplicated fault block development and will be an important reference value and guidance for the further development.