Study On The Countermeasure Of Secondary Development In Shu ? District

Shu ? block is located in the west slope in the western depression of liaohe basin of three central rising du 32 fault in the central part of the plate,connected with Shu ? block in the east,and adjacent to Shu ? block in the west.Shu ? block is relatively concentrated and complicated geological conditions of shuguang oilfield reserves,one of the main development blocks is put into production in 1975.Main purpose of the interval is in shahejie four Du Jiatai reservoir,including ? average reservoir effective thickness 8.7 m + ? class reserves,oil bearing area of 19.0 km2,2244×104 t,crude oil geological reserves ? class reserves reservoir effective thickness of 8.7 m on average,oil-bearing area of 6.0 km2,707×104 t oil geological reserves.As at later stage of development in recent years,new wells is less,and a reservoir sand strength,open hole rate is low,the imperfect injection-production well pattern and poor development effect and low recovery degree of problems,there's an urgent need to develop a set of integrated secondary development adjustment scheme,alleviate contradictions,improve the effect of block development.According to the above problem,the purpose of this paper is to explain the characteristics of Du Jiatai reservoir by using 3-D seismic data,to fine depiction of reservoir structure.The distribution law of remaining oil is studied by dynamic comprehensive analysis and numerical simulation.Replanning and developing well network in combination with reservoir characteristic.Adjustment of well location by plane partition and vertical layering method.Divide Shu ? block into five regions for zone development.