Tectonic Deformation And Hydrocarbon Accumulation In Lunnan Buried Hill Of Tarim Basin

LUNNAN buried hill is a secondary structural unit Tabei uplift,Tarim Basin located in central Tabei uplift,which depressed east of Grass Lake,West Halahatang depression,depressed southern slope to plunge Manjiaer north Long and round table off phase.In the Ordovician,Carboniferous,Triassic and Jurassic found eight sets of oil and gas bearing system,showing double features large oil and gas accumulation area,the future exploration prospects.Due to the investigations of strata buried deep degree is big,less research on the regional tectonic deformation,the lack of system analysis of the structural evolution and careful analysis of the equilibrium profile,so for the region are in urgent need of a detailed analysis of the structure.Lunnan area is mainly composed of basement buried hill and several faults,throughout the entire area of the great level of fracture for four large,nearly east-west fracture were in lunnan area of fracture,lunnan area from north to south,lunnan fracture,lunnan south fracture,sangtamu fracture and sangtamu south fracture.In this paper,through the study of the erosion amount of restoration of section and the analysis of the evolution,the evolution of the thought in lunnan buried hill experienced five phase,the stabilization stage,prototype,denudation and phase inversion and finalize the design.This paper focuses on structural deformation and hydrocarbon accumulation in lunnan buried hill is conducted detailed analysis,the further understanding,the exploration and development to guide the region's oil and gas exploration and exploration and development integration work,make the region a giant oil and gas accumulation.