CAJ | 학술논문

针对海底天然气水合物地层的独特特性,在充分考虑现有的常用聚合醇钻井液体系的基础上,论述了适合海底天然气水合物地层钻井用含动力学抑制剂的聚合醇钻井液的室内研究情况.结果表明,该体系具有优良的页岩抑制性和水合物抑制性、良好的低温流变性、稳定性和润滑性等特点,能够有效保持井壁稳定,是一种非常适合海底天然气水合物地层钻探的钻井液体系.
침대해저천연기수합물지층적독특특성,재충분고필현유적상용취합순찬정액체계적기출상,논술료괄합해저천연기수합물지층찬정용함동역학억제제적취합순찬정액적실내연구정황.결과표명,해체계구유우량적혈암억제성화수합물억제성、량호적저온류변성、은정성화윤활성등특점,능구유효보지정벽은정,시일충비상괄합해저천연기수합물지층찬탐적찬정액체계.
To aim at the unique characteristics of submarine gas hydrates formation, taking full account of existing commonly used polyglycol drilling fluid system, this essay presents a detailed exposition of the laboratory study of drilling in submarine gas hydrates formation with polyglycol drilling fluid which contains kinetic inhibitors. It turned out that the system has an excellent inhibition of shale and hydrate, favorable low-temperature rheology, stability, and lubricity, and it has the capability to effectively maintain borehole stability. Hence for these reasons, it is a drilling fluid system that is very suitable for undersea drilling in gas hydrate formation.