定方位射孔技术在压裂改造中的应用.pdf

定方位射孔技术在压裂改造中的应用 董经利张林 中石化胜利石油管理局测井公司 摘妻针对中深部高温低孔渗油藏改造中存在的破裂压力和施工压力高、易出现脱砂或生产周期短等现 象，胜利测井公司研制了超高温、深穿透、高精度定方位射孔器，使射孔作业由随机性射孔孔眼方向分布转变 为有选择性射孔孔眼方向分布。应用于东营南坡西段滩坝砂，埕南一埕东断裂带砂砾岩体、东营凹陷盐家陡坡 带沙四段特低渗砂砾岩体等超高温油气藏，降低了破裂压力和施工压力．提高了单井产能，延长了生产周期， 拓宽了储层压裂改造的应用范围。为提高低渗储层采收率和储量动用率提供了技术支持。 Abstract and formation们t11 low Conventional onthemiddle and improvements deep llightemperatureporosity havesome suchas pressure。sand and ＆permeabilitydisadvantageshighrupturepressure＆operationaloutingeasily short etc。InordertO abovementioned well solvethe researches producdonp喇od problemsShengfiloggingcompany andmanufacturesoriented withultra and Can perforator hightemperamre。deep-penetrationhighprecision，which randomdistributionof holedirectiontO∞lectiveone．Thismethodhasbeen insomeultra change perforation applied sandof south west-middleand reservoirs beachdam section hightemperatureincluding Dongyingslope Cheng of south—castfaultzone rockandlow rock belts4． gravel permeabilitygravel DongyingsagYanjiasteepslope and of oil the therebyreducingrapturepressureoperationalpressure，enhancingproductivitysinglewell，extending and reservoir technical for productionperiodwidening fracturingoperationscope．So suppoma陀suppliedimproving of oflow reserv