CAJ | 학술논문

为解决苏53区块石盒子组泥岩段的井壁稳定、携岩净化及润滑防卡等井下复杂问题，研制了全油基钻井液体系。对自主研发的有机膨润土、激活剂、降滤失剂及不同产地的润湿剂进行了室温和200℃高温老化后的性能对比优选试验；对优化出的全油基钻井液体系进进了抗温、抗污染、抑制性、悬浮能力、封堵能力和储层保护效果评价。全油基钻井液在苏538250 H井现场应用过程中性能稳定、易维护，能大幅度提高机械钻速，润滑防卡效果好，井径扩大率小，满足现场施工的各项要求。应用结果表明，自主研发的全油基钻井液体系解决了苏53区块长裸眼水平井钻井中的井下复杂问题，为油基钻井液体系的广泛应用提供了技术保障。
위해결소53구괴석합자조니암단적정벽은정、휴암정화급윤활방잡등정하복잡문제，연제료전유기찬정액체계。대자주연발적유궤팽윤토、격활제、강려실제급불동산지적윤습제진행료실온화200℃고온노화후적성능대비우선시험；대우화출적전유기찬정액체계진진료항온、항오염、억제성、현부능력、봉도능력화저층보호효과평개。전유기찬정액재소538250 H정현장응용과정중성능은정、역유호，능대폭도제고궤계찬속，윤활방잡효과호，정경확대솔소，만족현장시공적각항요구。응용결과표명，자주연발적전유기찬정액체계해결료소53구괴장라안수평정찬정중적정하복잡문제，위유기찬정액체계적엄범응용제공료기술보장。
To solve the problems of wellbore instability ,hole cleaning and anti-sticking in mudstone section of Shihezi formation of Block Su 53 ,new oil-based drilling fluids were developed .Indigenous organic clay ,activators ,filtrate reducer and wetting agents from different areas were used for performance compari-son and to test at room temperature and after aging at 200 ℃ .The all-oil drilling fluids were evaluated for their high temperature resistance ,anti-contamination ,inhibition ,and suspending abilities ,plugging ability and reservoir protection effect ,and the wellsite results were examined .During the course of field testing in Well Su 53 82 50H ,the all-oil drilling fluids were stable in performance and were easy to maintain ,which indicated the new fluids could significantly improve ROP ,and have good effect for lubricating and anti-sticking .Further ,the hole enlargement rate was small ,which fully met the operation requirements at the site .The results showed that oil-based drilling fluids can provide a viable way to solve the problems of drilling in long open-hole horizontal well in Block Su 53 ,and lessons learned could be provide technical so-lutions to reservoirs worldwide experiencing the same problems .