Well Log Interpretation And Evaluation Of Low Permeability And Low Permeability Reservoir In Chang 2 Member

Through the current exploration and development of oil and gas resources, it is not difficult to see that low porosity and low permeability reservoir have become the hot of increasing reserves and production in this field. However, there are many difficulties in logging evaluation technology of low porosity and low permeability reservoir which seriously restrict the understanding and evaluation in low porosity and low permeability reservoir and have caused great difficulties in oilfeild construction and oil and gas resources exploitation. On the basis of previous research results, the logging interpretation, the dynamic production data, logging data, geological data, core analysis data and the oilfield practice, the thesis takes Anzai Huaziping Chang2Reservoir for example, analyses sedimentation and diagenesis and researches some problems that is difficult to recognize lithology, the complex gap structure and the complex logging response characteristics. Mainly work are as follows:(1) Qualitative and quantitative analysis of reservoir pore structure, discussion on reservoir classification.(2) Four property relationship.(3) Qualitative identification of reservoir oiliness by using of the overlapped map and crossplot method.(4) Selecting adapt interpretation model logging interpretation on basis of four property relationship, reservoir classification.(5) Collecting statistics of interlay er and studying its characteristics.(6) Verifying the log interpretation through coring wells.