Study On The Adjustment Countermeasures For The Development Of The Bottom Water Reservoir Of Guantao Formation In C Oilfield

The natural energy in strong bottom water reservoir has double-edged sword. On the one hand, as the driving force, it can reduce production costs. On the other hand, the unreasonable production system has a bad effect on oil field exploitation, causing water coning, resulting in early water breakthrough. Under the low oil price condition, it's an urgent task to gain maximum economic profit with a minimum investment.Based on C oilfield Guantao and combined with the actual production performance and production law of oil field, this paper has studied the influences between measures which can increase production on economic benefit through bottom water reservoir development theory, numerical reservoir simulation and economic evaluation methods. Main achievements are as follows:(1) Summarized the geological characteristics of C Oilfield Guantao, and analyzed production flow mechanism and performance of the horizontal well in strong bottom-water drive reservoir, the influence of factors on critical production of bottom water reservoir, the water breakthrough law and recovery, at the same time, introduced theory chart.(2) Based on the measures of similar oil fields which have been implemented and achieved better development effect, studied the influence degree about alloction, encryption and water control technology on improving the oilfield development.?Based on the theory of increasing liquid production, and the practical production condition of oil fields, the reasonable opportunity and range of increasing liquid production is studied.?On the basis of history matching of oilfield, the research of remaining oil distribution was studied and the reasonable encrypted loction, timing and infill well number were determined in each block. ?Studied the parameters of interlayer and water drainage oil recovery technology on the effect of oilfield development effect via mathematical model of single well.(3) Based on the optimization results of numerical simulation about measures on increasing production, analyzed the economic benefit of different measures through economic evaluation method, which provides the foundation for the field to optimize every stimulation treatment.