밀도검층 이격 보정을 위한 기준선과 이격선의 특성 연구 = A Study on Spine and Rib Properties for Standoff Compensation, Density Log

다국어 초록 (Multilingual Abstract)

A series of density log data were obtained from the standoff experiments made in the four physical model boreholes of different densities, and the properties of spine and rib curves have been derived by the analysis of the gamma-gamma data. Particularly, the shape of gamma ray propagation path between source and detector, the geometrical property of spine and rib curves, the influence of borehole density and the detector combination on the properties of the curves, and the adequate detector combination for standoff compensation could be discussed. It was also confirmed that spine and rib slopes can be expressed as proportional to source-to-detector distance ratio between far and near detectors. The result of this experiment was also effectively applied for understanding the basic concept of spine and rib slopes.

참고문헌 (Reference)

1 김영화, "지하수면 상 · 하부 환경에서의 PVC케이싱 이격보정 비교 연구" 대한지질공학회 19 (19): 217-225, 2009

2 김영화, "소구경 플라스틱 케이싱 공에서의 밀도검층 보정실험" 대한지질공학회 18 (18): 137-144, 2008

3 김지훈, "밀도검층의 효과적인 현장적용을 위한 모형시추공 건설과 밀도검출기 보정에 관한 기초 연구" 강원대학교 대학원 2006

4 김기주, "밀도 검층에서의 보정계수 산출을 위한 기초실험과 자연 감마 보정" 강원대학교 대학원 2001

5 김영화, "밀도 검층 검출기 보정에 관한 기초연구" 대한지구물리학회 7 (7): 237-245, 2004

6 황세호, "물리검층에 의한 파쇄대 인식과 동적 지반정수의 산출" 161-162, 1999

7 Johnson, D. E., "Well logging for the nontechnical person" PennWell Books 1988

8 Gorvachev, Y. I., "Well logging - Fundamentals of Method" John Wiley & Sons Ltd 1995

9 Tittman, J., "The physical foundations of formation density logging (gamma-gamma)" 30 : 284-294, 1965

10 Wahl, J. S., "The dual spacing formation density log" 16 : 1411-1416, 1964

11 Samworth, J. R., "The dual spaced density log - characteristics, calibration, and compensation" 33 : 42-49, 1992

12 Hearst, J. R., "The RIDS-A density logger for rough holes" 34 : 222-234, 1969

13 Schneider, D. M., "Method of processing data from a dual detector LWD density logging instrument coupled with an acoustic standoff measurement"

14 Stoller, C., "Method for determining formation density photoelectric factor with a multi-detector-gamma-ray tool"

15 Schlumberger, "Log Interpretation Principles/Applications" Schlumberger Educational Services 13-19, 1989

16 Flaum, C., "Enhanced vertical resolution processing of dual detector gamma-gamma density logs" 1987

17 Campbell, J. L. P., "Density logging in Gulf Coast area" 21-25, 1958

18 Pickell, J. J., "Density logging" 25 : 891-904, 1960

19 Scott, J. H., "Borehole Compensation Algorithms for a Small-diameter, Dual-detector Density Well-logging Probe" 431-, 1977