注水井井口自升压增注技术研究与应用

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DOI：10.3969/j.issn.1001-2206.2025.03.008

Research and application of self-boosting injection technology for wellhead of water injectionwells

LI Dong，MA Wenjuan， ZHU Zhiguo，MIAO Yanping， ZHANG Guiying，DU Hang No.3 Oil Production Plant of PetroChina Huabei Oilfield Company，Hejian O62450， China

Abstract：Inresponse toincreased waterinjection presureanduneven pressurebearingcapacityof the waterinjection process pipelinenetworkduringoilfelddevelopment，reseachandaplicationofself-boostingijectiontechnologyforwelladofwater injectionwellswerecarriedout.Adevelopedhdraulicwelleadself-bosting injectiondevice，troughthereciprocatingreversing motionoflargeandsmallpistos，enablestheinjectedwatertoepresuriedattewellhead.Tepresurizaionamplitudecanange fromafew totensofmegapascals.Withtheincoming waterfromtheinjectionpipelineasthepower，presurizedinjectioncanbe achievedwithoutendtoreplacethecurentsurfaceinjectionprocesspipeline.Thecompletionrateofinjectionforvariousunder injectedwelsiniressuredlpeablitlesanpoved，ndoveageaandicyofectioater can be increased.An intelligent motor-driven self-boosting injection device which is equipped with a 3＼～7 kW drive motor drives the pistontomovebackandforthinbothdirectionsthroughthemotor，achievingpresurationandinjectionofincomingwaterwithout generatingretunwaterandsolvingtheproblemofnotuwaterpipelieinteinjectionwell.Teoilwelltransformerattsiecan suittheloadrequirementsoftedevicewitoutcapacityexpansion.Characterzedbyemotedatatransmision，moteotolfult alarm，faultdagosis，ndmadoperatio，tedvicecanangethorkingodeofeistingijetioeuipmnt，faciliatingthe automation and efficiency of oilfield water injection.

KeyWords：weldofwatijectilpressuzatioadijetion;self-osting;intellgntdvemoto;umadoati

油层注水开采是维持油田可持续性生产的主流模式。（剩余5300字）