Research and Application of Seismic Fine Description Technology for Composite Buried Hill Reservoir in Tarim Basin

The research area is located in the western part of the Luntai uplift of the Tabei uplift in the Tarim Basin. It is in a favorable position for the southward migration of continental oil and gas in Kuqa. The area is rich in oil and gas resources. Previous exploration and development have revealed that there is a special type of buried hill reservoir in this area-carbonate-sandstone composite buried hill reservoir. At present, many reservoirs found in this area are gradually entering the development stage, so the demand for fine description of composite buried hill reservoirs is increasingly urgent. This study fully utilizes seismic data, implementing precise well-seismic fine calibration, horizon fine interpretation, fine identification of fracture, fine identification of buried hill strata, fine compilation of structural map—a series of five targeted technical measures. These efforts have achieved a refined description of the composite latent mountain oil reservoir in the study area. This fulfillment caters to the need for refined descriptions of oil reservoirs in older regions. It has also established a technical series for the seismic refinement description of composite latent mountain oil reservoirs in the Tarim Basin, and providing strong support for the fine evaluation and efficient development of the next phase of regional bands.