Concentric Integration Stratified Injection Technology

The Daqing Oil Field is non-isotropic multireservoir sandstone oil field that has the implementation of early pourswater interior to maintain the extracting pressure .The layer that single Oil well meets may be hundred and more. The layer'sthickness from 0.2 meter to more than 10 meters. The high seepage oil layerand the low seepage oil layer, the thick oil layer and the oil layer alternately distributes. on the longitudinal Main force difference from non- main force oillayer In the water-injection development process, The distribution of water and oil and the movement rule is extremely complex, in order to reduce the contradiction of the level and the climbing rate of water The Daqing Oil Field has divided several developmented formations, each formation uses single set of well patterns alone. In order to enhances the tube column working life and the test precision as well as subdivides the degree.We must do many for this. The concentric integrated type subdivides pours water thetechnology is carries out in this kind of situation, this technical application caused the most small card distance of packer toreduce to 2m, the efficiency of measuredadjusts is one time to the tradition allowed to meet the needs of thin interbed dug dives and reduce the test cycle in orderto satisfied the geological departmen ,which has the vital significance to reduced the circulation of invalid pours water and development to the oil field more energyThis paper through analysis of poured water's tool, application simulation method and project experiment do theresearch of concentric integrated tapstruc ture characteristic and the flow fieldcharacteristic,Which solved the concentric tap application standard tap pattern plate problem.Value simulation partial uses hydrodynamics software FLUENT, take Reynold the average N-S equation as the governing equation, take the standard k-εepsilon model as the rapids model, based on the controlvolumetric method, applies the SIMPLEC algorithm, through the parameter revision to the governing equation, we computated the concentric integrated tap internal flowfield. Obtained distributioncharacteristic, the pressure distribution characteristic, the rapidskinetic energy and its the diffusion rate distributed characteristicrule. The result indicated that, the experimentalresult and the value computed result tallies well,so we may usethe the value computational method to conduct theresearch to the concentric integrated tap structure characteristic.The confirmationunion of fundamental research and the experimental proven we can use the conventional condition to instruction the work t Which has the vital significance in regarding the tool design and the tube column structure ,all that do more foundation to the theproject, simultaneously provided the certain theory and experience to the other research such as tapstructure characteristic, the flow field characteristic and optimization design. And provided the basis of the tube column structure theoretical analysis for the operation, has the certain l significance regarding to the similar tube column.