53泡排剂的应用

泡排剂的应用徐强中国石油川庆钻探工程有限公司生产运行处610051摘要在天然气开发过程中，当气井产水时，气藏能量将会降低，逐渐变成间歇井，甚至因井底严重积液而停产。泡沫排水采气是一种经济性高、效率高、施工方便的排水采气技术。泡沫排水也存在很大的局限性，它一般受井深、井温、及产层水质的矿化度等多种条件的限制。本文针对不同油田的地层水矿化度、温度等情况，通过实验选择有效的泡排剂以维护天然气井的正常生产；通过实验测试泡排剂在不同环境下的适应能力和各种性能以满足天然气开采的需要。研究结果表明泡排剂在不同矿化度的水样中以及不同的温度下其效果不一致，相对来说，泡排剂CT5-2的性能更稳定，效果更明显。关键词：气井泡排剂泡沫排水机理ApplicationoffoamscrubbingagentfoamscrubbingagentXUQIANGManufactureoperationdepartmentofCNPCChuanQingDrillingandexplorationCo,ltd610051ABSTRACTWhilebeingspiritwelltoproducewaterinthenaturalgasthedevelopmenttheprocess,thespirithidesenergyandwilllower,becomeintermittentwellgraduallyandevenstopsproductionbecausethewellbottomseriouslyaccumulatesaliquid.ThefoamcatchmentadoptsspirittobeakindofeconomicsexGao,efficiencyGaoandstartconstructionconvenientcatchmenttoadoptaspirittechnique.Thefoamdrainstoalsoexisttoverygreatlylimitsex,itisgenerallysubjectedtowelldeep,well,andproduce1Fthemineralofthefluidmattertoturnonedegree'setc.isvariousconditionalrestrictions.Thisdesigntothegeologicstratawatermineralofdifferentoil-fieldturnscircumstances,suchasdegreeandtemperature...etc.andpassanexperimentchoiceavalidbubblerowwiththemaintenancenaturalgaswellofnormalproduce;Orientationabilityandvariousfunctionpassingtheexperimenttestbubblerowunderthedifferentenvironmentwithsatisfythenaturalgasmineofdemand.Studytheresultenunciationbubblerowinthedifferentmineralturnthewaterkindofdegreeandthedifferenttemperaturedescenditseffectinconformity,oppositetosay,thefunctionwhichsteepsarowCT5-2morestable,theeffectismoreobvious.Keyword:Annoywell；Steeparow；Thefoamdrain；Mechanism目录摘要.................................................................................................................................1ABSTRACT......................................................................................................................11绪论.............................................................................................................................42泡排剂与泡排工艺.......................................................................................................52.1泡排工艺..................................................................................................................52.1.1泡沫排水采气的机理...........................................................................................52.1.2注入方法...............................................................................................................52.1.3泡排剂的注入量及日加药次数...........................................................................52.2泡排剂的发展..........................................................................................................62.2.1泡排剂的性能.......................................................................................................62.2.2泡排剂的类型.......................................................................................................72.2.3泡排剂的指标.......................................................................................................72.2.4泡排剂性能评价方法...........................................................................................72.2.5泡排剂的适用条件...............................................................................................82.2.6泡排剂的选择.......................................................................................................92.3泡沫的稳定机理......................................................................................................92.3.1泡沫中液体的流失.............................................................................................102.3.2泡膜的透气性.....................................................................................................102.4影响泡沫稳定性的因素........................................................................................102.4.1起泡溶液的表面张力.........................................................................................102.4.2表面粘度...................................................................................................112.4.3溶液粘度...................................................................................................112.4.4液膜的表面电荷.................................................................................................112.4.5泡沫质量.............................................................................................................112.4.6压力和气泡大小分布.........................................................................................122.4.7温度.....................................................................................................................123结论与建议...............................................................................................................12参考文献...................................................................................................................131绪论在天然气开发过程中，当气井产水时，气藏能量将会降低，逐渐变成间歇井，甚至因井底严重积液而停产。泡沫排水采气是一种经济性高、效率高、施工方便的排水采气技术，它具有设备简单、施工方便、成本低、适用井深范围大、不影响气井正常生产等优点，因此近年来国内外迅速发展起来，在采气工业中得到普遍应用。泡沫排水采气工艺是针对自喷能力不足，气流速度低于临界流速的气井的一种有效的排水采气方法。泡沫排水采气工艺是通过从携液能力不足的生产井的套管空间内注入表面活性剂(泡沫排水