The Sedimentary Environment And Microfacies Research Of Saertu Reservoir In The Yintuo Area

Comprehensive use of core, logging, construction and analysis data in Yintuo area. In accordance with the application of sequence stratigraphy and sedimentology of combining theory guiding ideology. By logging curve feature recognition, use a kind of technology which apply for fine-grained sedimentary strata comparison system in Saertu reservoir in the Yintuo area- "Step by step approach cycle standards with surface contrast". In contrast with this method detailed divide deposition time to5 units, establish a unified, fine stratigraphic region framework.To find out the source direction in the area, in accordance with sedimentology,detrital heavy minerals analysis method. The conclusion is: Provenance in Saertu reservoir in the Yintuo area came from Yintai river in the same period.After establish fine stratigraphic framework, clarify the provenance direction, we detailed analysis sedimentary facies in the Yintuo area. Put forward in Saertu reservoir in the Yintuo area, at that time main development lacustrine, delta front and former delta, sandbody trends from northwest to southeast overall. Skeletal sand bodies are mainly underwater distributary channel sandbody, mouth bar appears in the local horizon, constitute the main Saertu reservoir.Finally, base on establishing stratigraphic framework, clear provenance direction and recognition of sand body distribution space law, make full use of Hydrocarbon accumulation system in modern geology guiding ideology, analysis accumulation background in the area, use reservoir characteristics Distribution which has existing been found to do comprehensive research, identified reservoir type is mixed reservoir construction with lithology- structure and lithologic reservoir. Forecast in southeastern of area, there is a ffavorable area on the Saertu reservoir. Based on this outcome, predict 5 favorable block in this area, and guide project to deploy wells.