CAJ | 학술논문

新页HF-2井是川西地区的第2口页岩气水平探井，四开?152.4 mm井眼钻进过程中泵压偏高、排量低，定向仪器无法正常工作。借助钻井液水力学模拟计算软件，在确保油基钻井液密度稳定的情况下，采取优化钻井液性能和替换钻具相结合的方式，有效降低了泵压，提高了排量，满足了定向仪器正常工作的需要，使用密度2.15 g/cm3的油基钻井液完成821 m的水平段钻井施工，为今后同类井的施工提供了有益的借鉴。
신혈HF-2정시천서지구적제2구혈암기수평탐정，사개?152.4 mm정안찬진과정중빙압편고、배량저，정향의기무법정상공작。차조찬정액수역학모의계산연건，재학보유기찬정액밀도은정적정황하，채취우화찬정액성능화체환찬구상결합적방식，유효강저료빙압，제고료배량，만족료정향의기정상공작적수요，사용밀도2.15 g/cm3적유기찬정액완성821 m적수평단찬정시공，위금후동류정적시공제공료유익적차감。
Xinye HF-2 well is the second horizontal shale gas exploratory well in the western Sichuan state. During its the fourth ?152.4 slim-hole drilling process, the pump showed higher pressure and lower displacement, and the orientator could not work normally. By using the drilling lfuid hydraulics simulation software and ensuring the stable speciifc-gravity of oil-based drilling lfuid, we combined the optimization of oil-based drilling lfuid performance with the replacement of drilling tools to effectively reduce the pump pressure, increase the displacement volume, and keep the orientator at normal operation. In Xinye HF-2 well, the drilling of 821 m horizontal sec-tion ifnished with 2.15 g/cm3 oil-based drilling lfuid. The practice offers useful references to operations in similar wells.