Fine Interpretation Technique For Complex Structure Area In M Oil Field

For a long time,the oil is an important strategic resource by a large number of mining.So far,most of the oil field has entered the middle and later periods of the development so that reserves increase and stable production is under severe pressure.Fine seismic data interpretation technology studies the structure and reservoir at middle and later periods of the oilfield development: developing new structure diagrams by oil field structure interpretation for development adjustment wells deploy,discovering new oil and gas traps by comprehensive reservoir prediction for oilfield sustainable development.With oilfield entered middle and later periods of the development,structure characteristic of the region is relatively complex,so that fine structure interpretation becomes the important means for reserves increase and stable production.This paper is a study for geological background,structural features and lithologic features in M block based on the existing geological,seismic and drilling data to find more oil traps.Firstly,use analysis method of sequence stratigraphy to build work area stratigraphic framework to predict the main reservoir and the advantageous region.Secondly,make formation calibration of seismic data according to the work area VSP data and acoustic curve data to get the reflection characteristics of target formation.Then,extract geometrical seismic attributes from seismic data and make comprehensive research based on combining of dynamic and static data,to ascertain structural features of M block.Additionly,this paper makes CSSI and geological statistic inversion,combined with knowledge of sedimentology and sequence stratigraphy optimization inversion results.Lastly,analyse M block tectonic style and the relationship between structure and petroleum system to make traps evaluation and optimization.This paper plots the depth structure map of M block,form a set of the application technology for comprehensive reservoir prediction of complex tectonic zone,serve as a reference for similar oilfield exploration and development.