지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2014.9
- 수록면
- 67 - 72 (6page)
이용수
초록· 키워드
오류제보하기
The hazard of borehole collapse always exists in drilling procedure on the soft seabed to install the offshore fixed platforms. Drilling fluid can be used to prevent the borehole collapse of marine ground. Drilling fluid has the advantage of reducing the drilling period because it can minimize the conventional ground improvement procedures such as seabed grouting when it is applied simultaneously in the RCD(Reverse Circulation Drilling) procedure as a complementary measures. Effect of the drilling fluid to support the borehole depends on its mix proportion. The previous studies have not provided the sufficient guidelines to apply it for the actual installation. In this study, engineering characteristics of drilling fluid such as specific gravity, viscosity, fluid loss and thickness of the mud cake are presented by laboratory tests according to the ASTM standard.
Two functions of bentonite, polymer and dispersant are investigated. One is the adhesion of these materials to the wall of borehole and another is the reduction of the permeability, which can be used to design the drilling fluid.
Two functions of bentonite, polymer and dispersant are investigated. One is the adhesion of these materials to the wall of borehole and another is the reduction of the permeability, which can be used to design the drilling fluid.
목차
SYNOPSIS
1. 서론
2. 이론적 배경
3. 실험 방법 및 종류
4. 실험 결과 및 분석
5. 결론
References
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UCI(KEPA) : I410-ECN-0101-2015-530-002798112