The Reserves Evaluation Of SaLing Formation In SaNan Development Area

After Daqing Oilfield development went into the middle and late,For Sa Nan development area,the moisture content rose rapidly,production rate declined,the remaining recoverable reserves in the reservoir have become fewer and fewer after prolonged development,and the contradiction between the imbalance of geological reserves and recoverable reserves also has become intensified.The solution that can solve these problems and ensure the stability of oilfield production is to explore new reserves and maximize the exploitation of new untapped reserves.Compared to other formations in Daqing,The Sa Ling Formation is worse in lithology,physical properties,and oil-bearing properties,and is more sensitive.It is difficult to extract and to implement development.In order to explore the feasibility of developing geological reserves of Sa Ling Formation in the Sa Nan development area,the geological reserves of Sa Ling Formation in the Sa Nan development area was evaluated in this project.This project is a comprehensive study on the reservoir parameters and geological reserves evaluation of Sa Ling Formation in the Sa Nan development area.After comprehensive research and analysis on the data of core,formation testing,and logging of the Sa Ling Formation in the Sa Nan development area,A comprehensive and systematic study and evaluation was conducted on the geological structure,oil&gas interface,lithology,physical properties,electrical properties,oil content,effective thickness interpretation standards and effective thickness electrical properties of the Sa Ling Formation in the Sa Nan development area by using empirical statistics method and error correction,and well-logging interpretation model of effective porosity and water saturation was established.The area of gas-bearing and oil-bearing layers,Oil and gas geological reserves,and recoverable reserves were calculated and measured.The favorable area was pointed out which is for future development of Sa Ling Formation in the Sa Nan development area,a more reliable basis for the development of dynamic development and adjustment programs in the later stage of the oil field was also provided.