Evaluation Of Jin 204 Well Area Of Fine Geological Research And Potential

Jin 204 well area is located in the southern part of the west slope of the first fault step belt Huan 17 block in the middle western sag of Liaohe basin, located in the southwest of Huanxiling oilfield, Liaohe faulted structure is located in southern West Ramp po. Fault block is bounded on the north and south bound respectively 17 and JinHuan 16 fault, fault in north to Huan 17 block Jin 7, Jin 16 fault south of Jin 16 block. Jin 204 block structure iscomplicated by faults of the anticline structure, tectonic area of about 3km2. Three sets of oil-bearing series blockmain development: bottom-up respectively the three Department of Shahe Street Group Dalinghe reservoir,Xinglongtai reservoir, reservoir on floor, Dalinghe reservoir, Xinglongtai reservoir have depth development, is a major development of the block layer, on the floor of undeveloped reservoir. Including block Jin 204, Jin 2-9-05 block, 2-8-04 block and 8-21-39 block Jin Jin four secondary fault block. The main purpose of development for Xinglongtai oil layer, part of oil wells in reservoir development building. Xinglongtai Jin 204 well area reported1.3Km2 reservoir oil-bearing area, geological reserves of 413 * 104t(2-8-04 Jin, Jin 204 block), Jin 204 block Huan 17 fault block is the secondary fault block, since the 1978 discovery of Xinglongtai oil so far, middle high structure position has entered high water cut stage of production, and the edge of the lower location of the structure of well control a low degree of reservoir distribution, lack of awareness, production has not opened, the degree ofreserves is poor, and from the end of drilling oil and gas shows, the upper floor local area in reservoirdevelopment, the amount of resources are not implemented. Understanding through the development of the blockon the floor, Xinglongtai reservoir fine geologic research and potential evaluation to deepen the two sets ofreservoir structure, reservoir, reservoir development, lay the geological basis for effective development of Jin 204 block in building reservoir and fault block edge well control degree is low parts of the Xinglongtai reservoir. The main research contents are as follows: combined with the 3D seismic technology 1, use of the existing log data,carry out in building, Xinglongtai reservoir structure, sedimentary characteristics, reservoir development. 2, to carry out on the floor, Xinglongtai "four" the study on the relationship between reservoir. 3, carry out in building reservoirreserves. 4, on the block to conduct comprehensive evaluation, put forward the next step work direction. Is expected through this study, the future can be in 204 well area of deployment of straight 9 wells, 2 wells. The expected cumulative production of 5.9 * 104 t, and the economic benefit is 12980 * 104 yuan. Through the research, Jin 204 block through the deployment of new wells in heavy oil block can achieve throughput post yield,is expected to enhance oil recovery in block 6%. This study has developed a set of suitable geological characteristics of heavy oil reservoir remaining oil research technology, made a positive contribution to improveoilfield overall development result, also has the similar reservoirs better reference, with a wide range of scientificsignificance and application prospect.