煤层气直井储层堵塞原因分析及解堵措施应用.pdf

第21卷第3期中国煤层气Vol.21No.3

2024年6月CHINACOALBEDMETHANEJune.2024

煤层气直井储层堵塞原因分析及

解堵措施应用

郭晶张建国贾慧敏王琪何珊范秀波

（中石油华北油田山西煤层气勘探开发分公司，山西046000)

摘要：针对煤层气直井储层堵塞后气量难以恢复的问题，开展了储层堵塞原因及恢复措施的研

究。通过对煤层气直井储层堵塞成因及生产特征分析，将储层堵塞分为三种类型：层间干扰型、

排采不连续型、井间干扰型，针对不同原因导致的储层堵塞在进行压裂车解堵时应根据各自的是

适应性进行选井和施工，同时尽可能增大措施规模和排量，提高措施见效率和单井产气量。本文

提供的压裂车解堵技术，能够有效解决储层堵塞问题，提高储层堵塞井单井产气量。

关键词：储层堵塞压裂车解堵层间干扰排采不连续井间干扰

AnalysisofReservoirPluggingCausesinCoalbedMethane

ApplicationofUnpluggingMeasures

VerticalWellsand

GUOJing,ZHANGJianguo,JIAHuimin,WANGQi,HEShan,FANXiubo

(ShanxiCoalbedMethaneExplorationDevelopmentBranch,PetroChina

HuabeiOilfieldCompany,Shanxi046000)

Abstract:Addressingthechallengeofdifficultgasproductionrecoveryfollowingthereservoirplugging

incoalbedmethaneverticalwells,thisstudyinvestigatesthecausesofreservoirpluggingandtheunplug-

gingmeasures.Byanalyzingthecausesofreservoirpluggingincoalbedmethaneverticalwellsandtheir

productioncharacteristics,threetypesofblockagewereidentified:interlayerinterference,discontinuous

drainageandinter-wellinterference.Forthereservoirpluggingcausedbydifferentreasons,itiscrucial

toselectwellsandconductoperationsbasedonthespecificapplicabilitywhenperformingunplugging

usingfracturingtrucks.Atthesametime,theinjectionwatervolumeandthedischargerateshouldbe

maximizedtoimprovetheeffectivenessofthemeasureandthegasproductionofindividualwells.The

fracturingtruckunpluggingtechnologyputforwardbythispapercanef