Apricot Eighty-nine District Three Encryption Feasibility Study

Through the research of the layer growth characteristic in the Xing 89 oil layer area in which thecondition of the layer and the initial period deliverability, water content, water, absorbing capacity, thewater-flooding response of different pattern ofⅢand the pattern of remaining oil distribution,Ⅰhaveknown the function of the three encryption adjustments which enhances the thin difference and the outsidethickness of the reservoir usage. The pure oil region in the SaⅡ, Xing 89 area uses good in whole, thewater content is high, the thickness of the interbed is small, the adjustment of segmentation is difficult, theusage of some thin parts are not good. Because of the layer of the PuⅠhas not carried on the encryptionadjustment, the proportion of the effective thickness is less than 0.1m and the poor use and unused ofreservoir are still too high. Therefore, appraising the using condition of the thin difference oil layerobjectively in the presentⅢpattern use condition, increasing the water drive development use of the thindifference oil layer reserves to go a step further, carrying out the potention of three encryption adjustmenthave become a major issue which in at present oil-field development urgently awaits to be solved. Theachievement could apply directly in the adjustment plan that establish three encryptions in Xing 89 pure oilregion. This experimental study achievement uses fine geology description technology, on the basis ofclarifying the characteristic of the outside reservoir and the deposition of the thin difference reservoir, theuse condition and the remaining oil distribution,Ⅰuse the modeling technology and the modem oil depositproject theory and the oil-field development adjustment technology in the Xing 9 area.Ⅰcombinelaboratory experiment research and oil deposit value simulator study achievement and determine object ofthree encryption adjustments, optimumⅢspacing, the combination of layer system.Ⅰalso do the researchanalysis by optimizing each kind of material of theⅢand realize the technical and economical feasibilityof three encryption adjustment in Xing 89 area and know the technical economical feasibility of three timesencrypt in the Xing 89 areas.Ⅰhas established three encryption adjustment experiment plan which has beenthrough the field test and has obtained the good technical economic effect.