LD Field Suining Group Of Fine Reservoir Elaboration Logging Evaluation

LD suining group as the newly discovered gas reservoir, gas reservoir has beensubmitted to billions of cubic meters of natural gas. LD suining group is middle Jurassicafter a wide range of water phase deposition, are generally oxidation environment mainlyon shore and shallow lake delta and lake environment. In the delta front facies andcombining the former delta deposition is given priority to, with the development of thecorresponding microfacies underwater distributary channel, mouth bar, far sand dam, sandsheet, lake beach sand and mud flat between dam bay shore and shallow lake. Suininggroup reservoir is low porosity low permeability of tight sandstone reservoir, gas reservoiris mainly controlled by lithology, structure factors on the reservoir heterogeneity is affected,and the plane changes affected by sedimentary microfacies and diagenetic epigenesis islarger, the influence of the reservoir internal also exists strong vertical heterogeneity,reservoir quality mainly depends on the physical properties of differences.This article first the LD suining group reservoirs using logging data, the reservoiridentification including the lithology identification, fracture identification and therecognition of the laminar liquid storage, using a variety of methods for reservoir fluididentification. Secondly, combined with various data, such as the core data of suininggroup reservoir logging interpretation model is established, according to the modelcalculation of reservoir parameters and through the test in the typical well, study of suininggroup reservoir four close sex, together on the reservoir logging class analysis. Finally,combined with the typical Wells in the reservoir analysis, comprehensive evaluation ofreservoir.Through the study of this article, and achieved greater achievements, mainachievements: suining group reservoirs can be divided into two categories: porosity of reservoir and fracture pore type reservoir. Summarizes the suining group of loggingresponse characteristics of gas reservoir. Improving the technology of suining group of loginterpretation evaluation, etc.