石油矿场机械
石油礦場機械
석유광장궤계
OIL FIELD EQUIPMENT
2015年
8期
59-63
,共5页
直井%分层压裂%工具
直井%分層壓裂%工具
직정%분층압렬%공구
vertical well%separate layer fracturing%tool
海拉尔盆地属于低孔低渗的复杂断块油藏，平面、层间物性差异大，非均质性强，有效动用程度低。采用常规压裂工艺，难以满足高温高压要求；加砂规模小，改造强度低，难以建立有效驱动体系。通过对节流损失计算、流态模拟、室内油浸耐温承压试验以及现场试验，研发出适合海拉尔地层条件的直井不动管柱多段压裂技术及配套工具，包括大通径封隔器及胶筒、大通径水力锚的研制，实现大砂量、大排量的大规模压裂。现场应用30口井，实现大规模加砂，大排量施工，压后增产明显。
海拉爾盆地屬于低孔低滲的複雜斷塊油藏，平麵、層間物性差異大，非均質性彊，有效動用程度低。採用常規壓裂工藝，難以滿足高溫高壓要求；加砂規模小，改造彊度低，難以建立有效驅動體繫。通過對節流損失計算、流態模擬、室內油浸耐溫承壓試驗以及現場試驗，研髮齣適閤海拉爾地層條件的直井不動管柱多段壓裂技術及配套工具，包括大通徑封隔器及膠筒、大通徑水力錨的研製，實現大砂量、大排量的大規模壓裂。現場應用30口井，實現大規模加砂，大排量施工，壓後增產明顯。
해랍이분지속우저공저삼적복잡단괴유장，평면、층간물성차이대，비균질성강，유효동용정도저。채용상규압렬공예，난이만족고온고압요구；가사규모소，개조강도저，난이건립유효구동체계。통과대절류손실계산、류태모의、실내유침내온승압시험이급현장시험，연발출괄합해랍이지층조건적직정불동관주다단압렬기술급배투공구，포괄대통경봉격기급효통、대통경수력묘적연제，실현대사량、대배량적대규모압렬。현장응용30구정，실현대규모가사，대배량시공，압후증산명현。
Hailar basin,with its property of low porosity and permeability,is complex fault block reservoir which is hardly recovered because of heterogeneity.Regular frac technology with ineffec-tive stimulation cannot meet the requirements of HPHT and high sand volume.To realize large-scale fracturing and to increase the well production and efficiency,by pressure calculation,flow state simulation and experiment indoor and site application,vertical well multi-stage fracturing without moving string in Hailar basin is developed.It has realized big scale fracturing with big sand volume and rate.Matched tools including big diameter packer and relevant rubber element, big diameter hydraulic anchor have been developed.The technology has been applied in 30 wells with obvious effect under the big sand volume and rate fracturing.
