Study On Balanced Injection And Production Technology Between Layers For Complex Fault Block Oil Reservoirs

Dongxin oilfield belongs to Shengli Oilfield.It is located in the eastern part of the central uplift belt of Dongying depression,and it is a typical complex fault block oilfield.Dongxin oilfield reservoir heterogeneity,complex tectonic assemblage diversity,reservoir type,and the fault block reservoir of huge reserves,almost accounted for more than 80% of the total reserves of the entire region,plays a crucial role in so complex fault block of Dongxin oil production efficiency optimization of reservoir exploitation.In this paper,combined with the actual situation of Dongxin oilfield,based on the complex fault block reservoir in multi layer interlayer interference analysis,put forward a set of balanced development evaluation in accordance with the actual situation of oil field,the longitudinal small oil reservoir recovery degree difference for the balanced development of evaluation criteria.Using the ECLIPSE numerical simulation software,a conceptual model which conforms to the actual situation of Dongxin oil field is established.Using the orthogonal experiment method,research and analysis of the differential pressure coefficient,permeability,porosity,oil viscosity,differential graded thickness difference,well spacing differential influence on the balanced development effect,through the analysis of the results of the orthogonal test,the main control of oil balanced development effect factors,and the effect of the single factor on the main control factors,main controlling factors and draw the differential degree of difference relation.On this basis,carried out the research of optimization opportunity open to the degree that the balanced development between layers and open,in general water flooding based control,351 kinds of different combinations of parameters were adjusted the level of wells open degree,wells and wells open the open degree of time,the opening degree of the optimal and open time,and draw the optimal wells open degree,open degree and oil wells wells optimal optimal timing chart using Table Curve open 3D software.