| Sazhong zone two or three oil layers,hundreds of small,large thickness,sandstone thickness greater than 60 m,reserves of more than 70%,reservoir heterogeneity,and the horizontal and vertical distribution of interaction,in development to independent mining.Through the use of "two or three combination" mode of development,two or three types of reservoir independent deployment of a well network,synchronization,synchronization advance drilling water flooding,well spacing,small section,small distance,fine adjustment,made of water flooding test results of 6% points over the same period;in the qualitative study at the same time,drive.Quality of injection,injection pressure sharing,perfect and has the advantages of high degree of control.Chinese according to the "two or three combination" mode of development coordination,improve and supplement of chemical flooding well network,avoid shooting layer filling holes on water flooding stage,injection production relationship re matching,plane and complex relation of longitudinal connectivity,to fine reservoir description as the basis,using the "two or three combination" mode,two sets of wells two types of reservoir,the transition region mutual perfect high control degree wells injection production relationship,considering the improvement of chemical flooding injection production relationship,reservoir development,sand body types,well spacing and other factors affecting the dynamic analysis method,adjust connectivity between wells by sedimentary units within the well group of the note,for the optimization of injection wells adjustment plan,improve oil well productivity measures,make the test area to meet the oil stabilization and water control effect.At the same time,through the above research work,we further understand the "two or three combination" model of chemical flooding injection production connection,which lays a foundation for the dynamic analysis and adjustment of chemical flooding.(1)the method of improving chemical flooding production relation under the two or three combined development mode is studied,and the control degree of chemical flooding network is further strengthened.(2)the research has completed the "two or three combination" development model,and perfected the dynamic analysis and adjustment method of chemical flooding production relation. |
