本文關(guān)鍵詞：清潔潤滑快鉆劑CLSD的研制及性能評價　出處：《鉆井液與完井液》2017年02期 　論文類型：期刊論文

  更多相關(guān)文章： 快鉆劑 廢棄油脂 提速 清潔潤濕 潤滑性 飽和鹽水 高溫

【摘要】：清潔潤滑快鉆劑CLSD以廢棄油脂為原料,在確定其合成工藝和技術(shù)參數(shù)基礎(chǔ)上而制得,室內(nèi)性能評價結(jié)果表明其具有優(yōu)良的綜合性能:配伍性良好,基本不影響流變性,能適當(dāng)降低中壓濾失量;接觸角為170.5°,親油疏水性強(qiáng),清潔潤濕性好,容易吸附在金屬表面鋪展形成油膜;0.4%濃度時表面張力降低率為68.69%,使鉆井液更容易滲入鉆頭沖擊井底巖石時所形成的微裂縫中,降低儲層水鎖傷害;極壓潤滑系數(shù)降低率為91.83%,泥餅黏附系數(shù)降低率為62.67%,且隨著溫度的升高,潤滑性增強(qiáng),能降低扭矩及鉆井液摩擦力;抑制性強(qiáng),抗飽和NaCl;抗溫達(dá)160℃,而且高溫?zé)釢L后基本不起泡,隨著井深增加鉆井液性能穩(wěn)定,適用于深井或超深井;能減小壓持效應(yīng),提高鉆速,室內(nèi)鉆井模擬其機(jī)械鉆速提高率可達(dá)35.2%。
[Abstract]:The clean lubricating fast drilling agent CLSD was made from waste oil and grease, and its synthetic technology and technical parameters were determined. The results of indoor performance evaluation showed that it had excellent comprehensive performance: good compatibility. It has no effect on rheology and can reduce the pressure loss. The contact angle is 170.5 擄, which has strong hydrophobicity, good cleanness and wettability, and is easy to be adsorbed on metal surface to form oil film. The reduction rate of surface tension at the concentration of 0.4% is 68.69, which makes the drilling fluid more easily penetrate into the micro-fractures formed when the bit hits the rock bottom of the well, and reduce the damage of water lock in the reservoir. The reduction rate of extreme pressure lubrication coefficient is 91.83 and the decrease rate of mud cake adhesion coefficient is 62.67. With the increase of temperature, the lubricity increases and the torque and the friction of drilling fluid can be reduced. Strong inhibition, anti-saturated NaCl-resistance; The temperature resistance is 160 鈩，

本文編號：1378915