Development Potential Analysis And Development Adjustment Scheme Of K7 Condensate Gas Reservoir

K7gas reservoir is a condensate gas reservoir with oil ring and edge aquifer. It’s found at1977and put into production at1980and at the phase of production decline. Beacause of the early flow out, the engery is low and the condensate oil was exist at the beging of production. During the following natural depletion, the oil recovery is low and oil breakthrough happened in some edge gas well. In this paper, the potential of single well and pay layer have been analysised based on the production performance and test data to get a better understand of the distribution of remaining oil and gas. Geology modeling and reservoir simulation have been done to modeling the distribution of bypassed oil and gas, and stimulation measure of gas cycling has been announced to improve oil recovery. The following are conclusions achived.(1) Production performance analysis have done for the gas well, oil well and failed well. Adjustments have been put forward for potential wells based on the dynamical reserve calculation.(2) Current reserve distribution is not evenly. Gas is mainly located in K7-2、K7-3%K7-7. Average oil revovery rate is25%for oil wells, the potenital is impressive.(3) The mechanism study shows that gas cycling, firstly high injection-production ratio and then holding pressure, is appropriate for this field and a higher profit will get with the same volume of gas injection with this method.(4) Reservoir modeling shows that remaining gas is mainly in the high point and west of the reservoir. And the remaining oil is mainly located at the south of the reservoir.(5) Depending on the result of mechanism study and conceptual modeling, production plan adjustments with gas cycling and well production system adjustment has been put forward. An optional plan has been selected by economic evaluation.