【摘要】：針對纖維壓裂液的降解能力問題,設(shè)計了室內(nèi)實驗,研究了溫度、堿濃度對纖維壓裂液降解能力的影響。實驗表明,KTL1型纖維在10 d內(nèi)無論是水解還是堿解降解率都低于60%,不適合工程使用;KTL2型纖維在75℃時,無論是水解還是堿解降解率都不超過40%,在儲層溫度為75℃時不適合工程使用;儲層溫度為100℃時,經(jīng)過16 h后,降解率已達到90%以上;儲層溫度為120℃時,經(jīng)過4 h后,降解率已達到90%以上;因此,建議在儲層溫度低于90℃時慎用KTL2型纖維,在儲層溫度高于90℃時選做工程使用,效果較好。最后評價了纖維壓裂液的攜砂能力和儲層傷害,對長慶油田纖維壓裂液的使用具有指導(dǎo)意義。
[Abstract]:Aiming at the degradation ability of fiber fracturing fluid, laboratory experiments were designed to study the effects of temperature and alkali concentration on the degradation ability of fiber fracturing fluid. The experimental results show that the degradation rate of KTL1 type fiber is lower than 60% in 10 days, and it is not suitable for engineering use when KTL2 type fiber is used at 75 鈩，

本文編號：2123084