Study On The Well Testing And Comprehensive Evaluation Techniques In Jilin Oil&Gas Reservoirs

Well testing technology is an important part of the reservoir description technology in theoil and gas exploration and development process; it’s a important mean of making an accurateassessment for oil and gas showing in the drilling processes and getting reservoir parametersin the exploitation of oil and gas production dynamic. Well testing technology whichdeveloped in the1930s has become an important means of understanding and evaluatingreservoir after the continuous development and improvement. With the continuousdevelopment of the computer, modern well testing theory and interpretation technology usesystems engineering theory to explain the process well testing data, and make a modelselection of the pressure curve in early, middle and later stage, and some analytical processing,such as characterized judgment, the inner boundary analysis, curve fitting, dimensionalinspection, curve historical simulation test, and in order to determine the reservoir model andpercolation parameters. Evaluate reservoir productivity, boundary types and behaviors,hydrodynamic characteristics, injury degree and mechanism, and the dynamic characteristicsof oil saturation in the basis of those. Then make the correct well completion and measuresand projects, and calculate the dynamic reserves by those characteristics, so that makereservoir performance evaluation become more accurate.This paper made the normative research and comprehensive evaluation aim at commonproblems in the Jilin Oilfield well testing technology. And on the basis of research conductedon similar domestic oilfield, and the oil and gas industry standards, and well test interpretationas software tools. Study the suitable well testing interpretation method by making the capturefor Jilin Oilfield well testing technology difficulties, in order to make a regulation of fieldtesting and data interpretation better and provide reliable basis parameters for oil and gas fielddevelopment and adjustment. Make all oil production plants of Jilin Oilfield do standardizedoperation from equipment, process, interpretation to evaluate, and provide the quality of thedynamic monitoring and the availability of test data, and this meets the needs of reservoirengineering and geological research work. This paper made a research on basis ofcomprehensive and standardized things, and made some comprehensive evaluations fortypical oil fields, and made some applicability evaluations for interpretation methods andevaluation methods by giving full play to the role of dynamic monitoring of well testtechnology. In this paper, studied a new method that from the past test wells need million yuan, up tonow without any cost to test out the required data aiming at solving the five technicalproblems which exist in the oil field well testing interpretation, such as "early data, wells,layered, and from the pump test data exist and reasonable determination of the shut-in time".This provides reliable geological parameters and theoretical basis for the efficientdevelopment of the oil field and water injection policy adjustments.