Doğal Gaz ve Diğer Gazların Enjeksiyonu

Gaz enjeksiyonuanlamları esas olarak döngüselgaz enjeksiyonuyoğuşma gazı alanı veya N enjeksiyonu2,CO2, Orothergasesduringtertiaryrecovery.Nomatterwhatgasisinjected, thegasinjectionpressureishighduetothelowdensityandgascolumnpressure.Becausethecasingwillworkoveralongperiodunderhighpressure, casingperforationcompletionshouldonlybeselected.Thecasingstrengthandgastightnessofthecasingthreadshouldalsobeconsidered.Thegaschannelinginhibitorshouldbeaddedinthecementduringthecementingjobofthegasinjectionwellandthecementslurryshouldbereturnedtothesurface.Thepermanentpackerissetabovethetopofthereservoirinordertoprotectthecasing.Tubingstringwithsnubbingdownholetoolsisrequired.Thusthetubingstringcanbepulleduptoaplaceabovethereservoirundersnubbingconditionsforwellkillinginordertopreventkillingfluidfromdamagingthereservoir.