耐高溫低碳烴無(wú)水壓裂液室內(nèi)研究
發(fā)布時(shí)間:2018-03-11 06:36
本文選題:高溫 切入點(diǎn):低碳烴 出處:《石油鉆探技術(shù)》2017年04期 論文類型:期刊論文
【摘要】:針對(duì)目前國(guó)內(nèi)低碳烴無(wú)水壓裂液耐溫能力差的問(wèn)題,用戊烷、磷酸酯膠凝劑LPEA-1和黏度促進(jìn)劑FS-1配制了耐高溫低碳鏈烴無(wú)水壓裂液(戊烷基Frac-H壓裂液),并對(duì)其性能進(jìn)行了初步評(píng)價(jià)。通過(guò)室內(nèi)試驗(yàn)研究,確定戊烷基Frac-H壓裂液的基本配方為95.8%戊烷+2.0%LPEA-1+2.2%FS-1,按此配制的壓裂液在180s后黏度達(dá)到最大;在溫度為130℃、剪切速率為170s~(-1)條件下連續(xù)剪切120min后的黏度大于50mPa·s;破膠時(shí)不需加入破膠劑,且破膠液無(wú)殘?jiān)?戊烷基Frac-H壓裂液對(duì)頁(yè)巖儲(chǔ)層的傷害稍大于致密性儲(chǔ)層,但顯著低于水基壓裂液對(duì)頁(yè)巖巖心的傷害。研究結(jié)果表明,用戊烷、磷酸酯和黏度促進(jìn)劑配制的戊烷基Frac-H壓裂液,可以滿足非常規(guī)儲(chǔ)層高溫油氣井壓裂施工對(duì)壓裂液性能的要求。
[Abstract]:In order to solve the problem of low carbon hydrocarbon water-free fracturing fluid with poor temperature resistance at present in China, pentane is used. Phosphate gelling agent LPEA-1 and viscosity accelerator FS-1 were used to prepare high temperature low carbon chain hydrocarbon free fracturing fluid (pentane based Frac-H fracturing fluid) and its properties were preliminarily evaluated. The basic formula of pentane base Frac-H fracturing fluid was determined to be 95.8% pentane 2.0 LPEA-1 2.2 FS-1. The fracturing fluid prepared according to this formula had the highest viscosity after 180s and the temperature was 130 鈩,
本文編號(hào):1597001
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