本文關(guān)鍵詞：適用于柴油基鉆井液的洗油型沖洗液研究　出處：《西南石油大學(xué)學(xué)報(自然科學(xué)版)》2017年01期 　論文類型：期刊論文

  更多相關(guān)文章： 柴油基鉆井液 表面活性劑 洗油型沖洗液 清洗效率 潤濕反轉(zhuǎn) 相容性

【摘要】：針對柴油基鉆井液易殘留井壁和套管壁表面,影響水泥環(huán)膠結(jié)質(zhì)量這一問題,進(jìn)行了FYJ洗油型沖洗液研究:(1)建立表面活性劑的優(yōu)選方法;(2)優(yōu)選高效表面活性劑;(3)以清洗效率、潤濕反轉(zhuǎn)性能及其與柴油基鉆井液和水泥漿的相容性為評價指標(biāo),獲得綜合性能良好的FYJ洗油型沖洗液。實驗結(jié)果表明:(1)適用于洗油型沖洗液用表面活性劑應(yīng)選用HLB值在12～15的陰離子型、非離子型或兩者復(fù)配的表面活性劑體系,且加入表面活性劑的溶液表面張力(γ)接近或小于鉆井液的臨界表面張力(γc≈23～27 m N/m),而較優(yōu)加量至少大于臨界膠束濃度(CMC值);(2)FYJ洗油型沖洗液對不同種類的柴油基鉆井液的清洗效率皆達(dá)到82%以上,有較好的抗溫抗鹽性;(3)該洗油型沖洗液與柴油基鉆井液和水泥漿的相容性良好。
[Abstract]:In view of the problem that the diesel-based drilling fluid is easy to remain on the well wall and the casing wall surface, which affects the cementing quality of cement ring, the FYJ oil washing fluid is studied to establish the optimal selection method of surfactant. 2) high efficient surfactant; The cleaning efficiency, wetting inversion performance and its compatibility with diesel-based drilling fluid and cement slurry are taken as the evaluation index. The experimental results show that the FYJ oil washing liquid with good comprehensive properties is suitable for the use of surfactant in the oil washing liquid. The anionic type with HLB value of 12 ~ 15 should be selected. The solution surface tension (緯) of Nonionic or both surfactants is close to or less than the critical surface tension of drilling fluid (緯 c 鈮，

本文編號：1437547