The Reservoir Characteristics And Sedimentary Of Nanzha Group Of Central Uplift Belt Of Tarim Basin

This paper is guide as theory of sedimentary geology and petroleum geology, field sections, drill core observation, and launched a study of stratigraphic division and correlation, sedimentary facies and reservoir characteristics which based on the combination of various types of test data analysis system of NanZha group of Central uplift belt:(1)Connecting with the predecessors research results,I study the characteristics of flat distribution of NanZha group based on stratigraphic division, contrast between the drill and single drill and different stratigraphic area strata characterized basis o f NanZha group.(2)This paper divided NanZha group of Central uplift belt into restricted platform facies and open platform facies based on the various types of sedimentary facies identification mark, which are further divided the restricted platform facies into supratidal flat, intertidal belt, lagoons and shoal,and divided open platform facies into shoal and interbank.(3)It studied the Sedimentary facies distribution through drawing of NanZha group of Central uplift belt limestone and limestone particle thickness map and combined with seismic facies research.It establish the sedimentary model of restricted platform-open platformfrom,and characteristics distribution of east to southwest has restricted platform-open platform.(4)It studied Reservoir lithology, physical properties and pore characteristics of NanZha group systematacially.It was considered "low- medium porosity and low-permeability" reservoir development to grain limestone, dolomite grains characterized by the main reservoir space intergranular d issolved pore and intergranular pores of NanZha group of Central uplift belt.