喇嘛甸油田萨一组外扩潜力

OUT-STEPPING POTENTIAL OF FORMATION SA ⅠIN NORTH LAMADIAN OILFIELD

2008-2010年在喇嘛甸油田东翼外扩区部署了7口外扩评价井,其中6口井开展了试油工作,获得了1～60 t/d的产油量,证实了萨一组油水过渡带具有一定的产能,有必要开展萨一组油水过渡带开发可行性研究.通过对萨一组油水过渡带沉积特征描述,落实了外扩区的构造分布与演化趋势,搞清了储层发育状况;进一步对不同井区油层分类评价,分析萨一组油层动用状况,优选布井区域,证实了油田东翼萨一组油水过渡带开发的可行性.

From 2008 to 2010, seven out-stepping evaluation wells are drilled in the eastern wing of Lamadian Oil- field, among them, six wells have been oil-tested and achieved 1-60 t/d of oil test results. Thus a certain produc- tivity is proven in Formation Sa I oil-water transitional belt, so it is necessary to carry out the feasibility study of the belt development. Through describing the sedimentary characteristics of the belt, the structural distribution and e- volution trend of the expanding block are determined, the developed conditions of the reservoir are made clear; and moreover the sorting evaluation of the oil reservoirs in different well blocks is conducted, the developed conditions of Formation Sa I oil layers are analyzed, and furthermore the spacing area for the wells is optimized. All the achievements stated above have proven the developing feasibility of Formation Sa I oil-water transitional belt in the eastern wing of the oilfield.