CAJ | 학술논문

塔河油田φ177.8 mm套管开窗侧钻时，需满足地质避水要求，面临钻遇易漏及易坍塌泥岩地层的难题，要实现侧钻井眼的长久稳定，采用下膨胀管封隔不稳定地层两开次钻进技术是行之有效的方案。详细介绍了塔河油田12区部署的利用膨胀管技术封隔复杂地层的侧钻水平井TH12115CH的施工情况，并与前期的3口膨胀管试验侧钻水平井结果进行对比分析，总结了该项技术存在的问题，并从套管开窗、定向扩眼、钻头优选、螺杆钻具优选、水力参数优化及膨胀管固井等配套工艺技术方面，提出了解决问题思路，为后期降低该项技术推广应用成本积累经验。
탑하유전φ177.8 mm투관개창측찬시，수만족지질피수요구，면림찬우역루급역담탑니암지층적난제，요실현측찬정안적장구은정，채용하팽창관봉격불은정지층량개차찬진기술시행지유효적방안。상세개소료탑하유전12구부서적이용팽창관기술봉격복잡지층적측찬수평정TH12115CH적시공정황，병여전기적3구팽창관시험측찬수평정결과진행대비분석，총결료해항기술존재적문제，병종투관개창、정향확안、찬두우선、라간찬구우선、수력삼수우화급팽창관고정등배투공예기술방면，제출료해결문제사로，위후기강저해항기술추엄응용성본적루경험。
When the φ177. 8mm casing in Tahe oilfield is in the process of casing milling sidetracking, it should meet the re-quirement of geological water avoidance;and in order to achieve permanent stability of the lateral drilling when there are prob-lems such as leakiness and collapsible mudstone formation, the expandable casing to block the complex layer drilling technolo-gy is a effective solution. The application of the technology in well TH12115CH in 2013 is introduced in detail in this paper, and problems of the technology are summarized after comparing with 3 pilot wells constructed in 2012. Finally the solutions are presented from the aspects of the casing window, the directional reaming, bit type, mud motor, hydraulic parameters optimiza-tion and expandable casing cementing technology and other supporting technology, thus to accumulate experience for reducing the cost of the technology.