Comprehensive Evaluation Of Gao 35 And Gao 106 Fault Block Reservoirs And Simulation Of Reasonable Liquid Production Intensity

The Gao 35 and Gao 106 fault blocks are located in the middle section of the Lixian slope,and all belong to the fault-nose reservoir near the fault.Combining the previous research results of experts and scholars on the Lixian slope,the problems of the complex oil-water relationship in the upper Es2 section of the Gao 35 and Gao 106 fault blocks and the control of the reservoir by the structure-lithology composite control,etc.On the basis of single-layer comparison,aiming at the problems of unclear oil-water relationship in the study area,the unreasonable phenomenon of "high water bottom oil",and rapid water seepage after production,etc.Using techniques such as petrophysical facies,phase-controlled modeling,reservoir unit,numerical simulation,etc.,a comprehensive evaluation of the two fault block reservoirs was carried out,and the following studies were mainly carried out:(1)On the basis of previous scholars studying the Lixian slope,subdivide the single layer to analyze and study the structure,sedimentation and current test production development characteristics of the two fault block reservoirs.(2)The sedimentary facies in the study area are single,and only the sedimentary microfacies of the underwater distributary channels and tributaries are applied.The petrophysical facies is applied to combine the differences in reservoir physical properties and effective sandstone thickness distribution.The rock physical phases of the two fault blocks are divided to find the high-permeability belt channels with good physical properties and oil and gas accumulation,and pave the way for phase control modeling.(3)Using FCRM6.1 software,using phase-controlled Kriging modeling technology,combined with the control of rock physical phase and sedimentary micro-relative reservoirs,phase-controlled modeling of high 35 and high 106 fault block reservoirs,analyze the physical property changes and sand body distribution of the two fault blocks from the vertical and horizontal faces;The volumetric method was used to analyze and evaluate the geological reserves and main oil-bearing layers of Gao 35 and Gao 106 fault blocks.Finally,the heterogeneity of the two fault block reservoirs was analyzed.(4)Aiming at the complex problems of oil and water in high 35 and high 106 fault blocks,the oil and water distribution of each single sand body layer in the two fault blocks is explained from the plane and profile by using the technique of dividing the reservoir unit.At the same time,the reservoir types of each reservoir unit in Gao 35 and Gao 106 fault blocks were analyzed and quantitatively evaluated.(5)Using Eclipse software,combined with the development of Gao 35 and Gao 106 fault block development wells,water seepage development,rapid rise of water cut,rapid advance of side water cone,etc.Simulate the main factors influencing the flooding of the water and simulate the reasonable strength of liquid production to achieve the development effect of controlling water and increasing oil.Through the above research,we have a better understanding of the upper Es2 reservoirs of Gao 35 and Gao 106 fault blocks,and laid a theoretical foundation for the subsequent development of the reservoir.