Du 229 Block Heavy Oil Reservoir Potential Deployment Research And Application

Du 229 block since 1998, the use of direct steam injection way to invest in development, through the construction of large-scale production capacity, in 2000 reached a million tons of production scale. After 2008, productivity construction dimensions narrows gradually, because there is no new exploration field, area restrictions, well location deployment difficulty increases gradually, research ideas need to be changed.In view of this situation, on the basis of sufficient research of the domestic and foreign situation of heavy oil recovery, 2014 using numerical simulation method on the regional mutual layered reservoir is established typical wells in radial model, fine geological study, the use of Du 32-43-51 wells means, re understanding appraisal Hing â…¡ + â…¢ + â…¢2 group low pay zone. The straight well and horizontal well exploitation of the economic limit evaluation and deployment of a new pattern interlayer potential tapping, Hing Group â…¡, â…¢ reservoir group of tapping the potential of the scheme to study the deployment from the development mode optimization, optimization of well, well spacing optimization of several aspects. And draws the conclusion: Hing Group â…¡ thin interbedded layer reservoir for deployment of a vertical well steam huff and puff to tap the potential of mining, Hing Group III and thin inter bedded reservoir in vertical upward by multiple layer composition and thickness greater than 15 m range is small. Therefore, in the current technical conditions, not suitable for large area of SAGD production. Therefore, selecting two well groups of class â…¡ SAGD development test. In Xing â…¢ + â…¢2 group deployment of horizontal well steam throughput preheat cycle 3 rounds after converting to steam assisted gravity drainage(class â…¡ SAGD) development. And through the injection production parameters optimization design, to ensure that in the upper part of the reservoir formation steam chamber, so as to achieve the goal of expanding the steam chamber, continuous heating crude oil, the heating oil and steam condensation water by gravity into the production wells to.Through of Du 229 block thin interbedded reservoir potential deployment and research and application, a total increase of deployment stage production of 1.4 * 104 T, and achieved great economic benefit and social benefit, and has to the reservoir feature and the promotion of value.