Research On Subdivision Development Of Fuyu Oil Layer In The Western Area Of Fuyu Oilfield

Present most of China’s continental oil fields have less oil production rate and a lowerdegree of recovery, but development of indicators to be enhanced still has the larger space. Asdevelopment continues, the difficulty of oil field development is increasing. Exploring thetechnical methods of further improving the remaining oil to be used and the extent andefficiency of water flooding, has gradually become one of the research efforts in the directionfor the majority of oil field development workers.In this paper, considering that the main reservoir of the Fuyu oil layer has been seriouslyextracted, non-main reservoir of the remaining oil has a large number of enrichment, andbetween layers of non-homogeneous characteristics is very strong, weak pressure layercapacity is difficult to play, I decided to take the technology roadmap of Subdivision the Fuyudevelopment strata,and several sets of well network deployment based on the identification ofremaining oil distribution,so that we can realize Fuyu layer pattern rearrangement andincrease the degree of control of the remaining reserves. On this basis, the water injectiontechnology policy can be optimized, the potential of low-yielding layer can be given full playand the effect of reservoir water flooding can be impoved.Taking Block west of10-2as a pilot, I tried deepening of the test block delta reservoirgeological characteristics and fine portrayed remaining oil distribution features. Combiningindoor and field implementation,I summaried the Fuyu segments and well recombinanttechnology methods. The research is how to make the proper deployment of the subdivisionlayer injection patterns, improve the the Fuyu layer remaining oil to the use of the extent andefficiency of water flooding, and make the preparation of the Fuyu oil layers of segmentation,pattern rearrangement to develop a pilot program. Strata subdivision of the formation ofpattern rearrangement system is basically sound and can be in the region to promote. Stratasubdivision, well rearrangement can be in targeted, and achieve better test blocks stablesituation. Besides the decline rate is reduced by2%. By perfecting injection and improvereservoir relations, the oil recovery rate can be improved by more than0.1percentage pointsand the stage of recovery can be increased by10percentage points.