Research On Evaluation Technique Of Water Injection Well Testing Results

Water injection,for most onshore oilfields in China,is the foundation to realize the stable oil production and enhance the ultimate recovery;and effective separated layer water-flooding,which plays the role in the control of high permeability layer and functioning middle and low permeability layer,is the effective measures to improve the effect of oilfield overall development.In recent years,the technological development of separated layer water-flooding and fine separated layer water-flooding has greatly improved the control ability of water flooding development in every oilfield.At the same time,with the development of separated layer water-flooding,higher requirements on quality analysis of the test date are put forward.At present,oilfields generally focus on how to improve the water injection technology,which is how to obtain testing data of water injection wells;there is a blank in the research on evaluation technique of water injection Well Testing Results.Increasingly prominent contradiction between the development of testing technology and evaluation technology stagnation makes the research on evaluation technology of water injection well testing results objectively needed.The paper analyzed the present situation of testing and debugging in Jilin oilfield and Daqing oilfield,and discussed the reasons of the stagnation of evaluation technology research and consequential impacts.The technical research on relevant standards was carried out.Set up a linear regression model of evaluation technology to help realizing the transformation from testing curve to achievements.Lay the foundation for mapping the water allocation graph.Achievement evaluation mechanism was studied.The principles and methods of test results of water allocation were demonstrated.The concept of effective water allocation was presented.Effective water allocation graph was mapped by using the results of the water allocation to evaluate the quality of test data;Actual instructional research on the evaluation was studied.Actual application is carried out by using the test results and guiding management personnel to maximize effective water injection...