Method And Application Of Mud Logging And Wireline Logging Combined Identification Of Oil Gas And Water Layer

Mud Logging and wireline logging, as one of the important ways to identify the underground oil and gas layer received widespread attention, but the current through a single logging or logging methods for underground oil and gas layer identification of moderate rate is low, so it is necessary to combine logging and well logging method for integrated study of the identification of oil and gas layer. Through the analysis of the principle of the logging and logging technology, combined with the advantages and disadvantages of two kinds of methods to identify oil and gas layer, sums up the comprehensive utilization of mud logging and well logging in oil and gas layer identification method, and applies this method to TYK areas of Turpan-Hami basin. Research application logging principle, with low resistivity, low density value, low natural gamma value, high acoustic time difference and high neutron curve to determine the reservoir, and combining with oil high resistivity of the properties, established by the method of comparative analysis of underground oil and gas layer. Compared to other physical test methods, logging method is one of the most obvious advantage is to obtain information and timeliness, which can real-time understand the situation of the underground, not affected by drilling time, can be more accurate calibration of the underground oil and gas shows that horizon. And by fluorescent logging cuttings observation level and total hydrocarbon curve high abnormal segment, to determine the underground oil and gas layer of display. In order to enhance the accuracy of identification of oil and gas layer, combines mud logging and well logging method, application of apparent resistivity and geochemical bright spot value chart method, the total porosity and PHC plate method and acoustic time difference pyrolysis hydrocarbon amount interpretation evaluation method to determine the underground oil and gas layer. Explanation of acoustic moveout PHC total evaluation is based on acoustic time difference curve and rock pyrolysis logging parameters are corresponding to determine reservoir characterized by reverse change. The two methods of chart is based on the established chart when oil and gas division, according to the subsequent well test area to determine the oil and gas layer. And the method is used for TYK area, Turpan-Hami basin conformity degree than single interpretation method is obviously improved, interpretation coincidence rate of 90% or more.