A Study On The Adjustment Techniques Of Complex Fault Block Reservoir

In recent years, the complex faulted block reservoirs in the reservoir development in China and gradually occupy the main position, the type of reservoir structure is complicated, the fault plane will cut into the reservoir broken block, generally have several sets of oil-bearing longitudinal though there are many strata, oil-bearing strata, but the enrichment degree of difference, but also has several sets of oil-water system, the oil-water relationship is more complex, different fault block or even the same fault block between the different layers are often not uniform oil-water interface. Its special tectonic brought great difficulties to the development of this type of reservoir.Hongnan9Block Reservior to invest in developing the end of2005,9, is typical of complex faulted block reservoirs, with a set of oil-bearing strata and differences in physical properties of oil-water complex fault block reservoirs, resulting in a fault block oil reservoir development unit small, difficult to form the rules of the development well. As development continues, a series of changes in reservoir conditions exist in the development of several major issues have become increasingly prominent in order to effectively solve the existing problems in the development to further improve the level of reservoir development, comprehensive adjustment measures is necessary.Hongnan9Block Reservior of the actual production data, a full range of analysis and evaluation of the status of reservoir development. Reservoir development history of division, the stratified Department a detailed study of well yield components and changes of the oil well production and injection wells, water injection situation, the formation energy to maintain condition, the injection and the corresponding status condition, moisture content increased by law, the water injection development indicators and fault sealing understand analysis, found that the reservoir energy in the development process can not keep her bottom water coning too fast leading to the well flooded, complex structures, injection wells bits select the hard, difficult to form the perfect injection and relationship development main the main problems. For the current development status, the first application of modern reservoir engineering analysis methods, to demonstrate the development of technology policy division on the development of strata, development mode, the form of a reasonably well network, and well spacing. Combined with the reservoir engineering and numerical simulation study on the feasibility and effectiveness of artificial barrier control hydraulic pressure cone.Coarsening of three-dimensional fine static geological model, combined with the actual production of dynamic, well logging, testing, stratified Department to establish the reservoir each layer of the original oil-water distribution model, and further through the production wells of history matching, current and accurate residual oil distribution of remaining oil and remaining oil in the plane and the vertical distribution law on the basis of a dozen new wells and old wells to fill the hole, old Inoue return, old wells production level adjustments, playing the riser board in the quantitative analysis, The playing side of the drilling and other measures. And the stratified Department according to the residual oil distribution characteristics made several sets of injection and production adjustment programs, the use of numerical simulation of the injection patterns program development index forecast, Evaluation and Selection of the best solution.