文档摘要：泡沫排水采气是含水天然气井开采中后期较为常用的一项技术措施.为了进一步提高页岩气井排水采气用泡排剂的泡沫稳定性能,通过大量室内实验,优选出性能较为优良的起泡剂BY-1和稳泡剂HW-3,并通过引入纳米颗粒来提高泡沫体系的稳定性能,研究出一种适合页岩气井排水采气用纳米泡排剂体系,评价了体系的耐温、耐盐和耐油性能.结果表明:纳米泡排剂体系的耐温性能较好,随着老化温度的增高,体系的起泡体积和泡沫半衰期均先增大后减小,当老化温度为120℃时,起泡体积和泡沫半衰期仍能达到450mL和330min;纳米泡排剂体系的耐盐性能较好,随着矿化度的增大,体系的起泡体积逐渐减小,泡沫携液率先减小后增大,当盐水矿化度达到1.0×105mg·L-1时,体系的起泡体积和泡沫携液率仍能达到425mL和80.6%;纳米泡排剂体系的耐油性能较好,随着煤油体积分数的增大,体系的起泡体积和泡沫携液率均逐渐减小,当煤油体积分数为30%时,体系的起泡体积和泡沫携液率仍能达到420mL和50.7%.
Abstract：Gasproductionbyfoamdrainageisacommontechnicalmeasureinthemiddleandlaterperiodofwaterbearingnaturalgaswelldevelopment.Inordertofurtherimprovethefoamstabilityoffoamdrainageagentforshalegaswelldrainageandgasproduction,thefoamingagentBY-1andfoamstabilizerHW-3withbetterperformancewereselectedthroughalargenumberofindoorexperiments,andthestabilityofthefoamsystemwasimprovedbyintroducingnanoparticles.Ananofoamdrainageagentsystemsuitableforshalegaswelldrainageandgasproductionwasdeveloped,andthetemperatureresistance,saltresistanceandoilresistanceofthesystemwereevaluated.Theresultsshowedthatthetemperatureresistanceofthenanofoamdischargeagentsystemwasgood.Withtheincreaseofagingtemperature,thefoamingvolumeandhalflifeoffoamofthesystemfirstincreasedandthendecreased.Whentheagingtemperaturewas120℃,thefoamingvolumeandhalflifeoffoamcouldstillreach450mLand330min;thesaltresistanceofnanofoamingagentsystemwasgood.Withtheincreaseofsalinity,thefoamingvolumeofthesystemgraduallydecreased,andtheliquidcarryingcapacityoffoamdecreasedfirstandthenincreased.Whenthesalinityofbrinereached1.0×105mg·L-1,thefoamingvolumeandliquidcarryingrateoffoamcouldstillreach425mLand80.6%;thenanofoamingagentsystemhadgoodoilresistance.Withtheincreaseofkerosenevolumefraction,thefoamingvolumeandfoamliquidcarryingrateofthesystemgraduallydecreased.Whenthekerosenevolumefractionwas30%,thefoamingvolumeandfoamliquidcarryingrateofthesystemcouldstillreach420mLand50.7%.
作者：李晓玲Author：LIXiaoling
作者单位：玉门油田环庆采油厂,甘肃酒泉735000
刊名：当代化工 ISTIC
Journal：ContemporaryChemicalIndustry
年，卷(期)：2024, 53(6)
分类号：TQ047TE377TE39
关键词：页岩气井 排水采气 起泡剂 稳泡剂 纳米颗粒
Keywords：Shalegaswells Drainageandgasextraction Foamingagent Stabilizer Nanoparticles
机标分类号：TE357.46TQ333.7TQ423.11
在线出版日期：2024年7月19日
基金项目：气井排水采气用纳米泡排剂研究及性能评价[
期刊论文] 当代化工--2024, 53(6)李晓玲泡沫排水采气是含水天然气井开采中后期较为常用的一项技术措施.为了进一步提高页岩气井排水采气用泡排剂的泡沫稳定性能,通过大量室内实验,优选出性能较为优良的起泡剂BY-1和稳泡剂HW-3,并通过引入纳米颗粒来提高泡沫体...参考文献和引证文献
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关键词：页岩气井,排水采气,起泡剂,稳泡剂,纳米颗粒,
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