An Analysis on Induction Logging Measurements in a Typical Formation of Korea

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2010 Vol.47, Issue 4 Preview Page Next Page

An Analysis on Induction Logging Measurements in a Typical Formation of Korea 전자기유도검층 수치모델링 및 반응 분석: 남명진, 황세호
Myung Jin Nam and Seho Hwang

31 August 2010. pp. 539-548

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Abstract

Induction logging devices have been used in groundwater investigations and geotechnical engineering problems in Korea, even though induction logging devices had been originally developed for the oil industry applications. Standard (or conventional) induction logging devices usually incorporate one transmitter coil and one or a number of receiver coils (all of which are oriented along the tool axis), being sensitive only to the horizontal formation resistivity in vertical wells. We simulate and analyze induction logging measurements in a typical formation model of Korea using a standard induction tool. Numerical tests analyze effects of the diameter or/and mud resistivity of borehole on induction logging measurements. Further, we compare responses of induction and (short and long) normal logging to the typical formation model under consideration. Numerical results confirm that induction logging experience less borehole effects than normal logging measurements.

Keywords

Induction logging

Normal logging

Numerical modeling

전자기유도검층은 노멀전기검층을 수행할 수 없는 환경에서 노멀전기검층의 대안으로 지층의 전기전도도를 측정하기 위해 개발되었지만 노멀전기검층을 사용할 수 있는 환경에서도 널리 이용되었다. 초기의 전자기유도검층 장비는 하나의 송신코일과 수신코일로만 구성되었지만 오늘날의 전자기유도검층 장비는 여러 개의 송수신코일로 구성되어 있으며 주로 유전개발을 위한 지층평가에 널리 이용되어 왔다. 전자기유도검층은 최근 국내에서 주로 지하수환경 조사나 지반조사에 적용 빈도가 높아지고 있다. 이 연구에서는 먼저 두 개의 코일 시스템으로 된 전통적인 전자기유도검층기를 가정하여, 한국에서 주로 볼 수 있는 지질구조 지층모형에 대해 검층반응을 수치모델링하고 분석한다. 특히, 시추공 공경 변화와 시추공 이수의 전기전도도가 전자기유도검층에 미치는 영향을 분석하고 전자기유도검층과 노멀전기검층 반응의 차이에 대해서도 비교, 분석한다. 수치실험 결과, 전자기유도검층은 노멀전기검층에 비해 시추공 공경 변화나 시추공 이수의 전기비저항의 영향에서 자유롭다는 것을 알 수 있다.

키워드

전자기유도검층

노멀전기검층

수치모델링

References

남명진, 2010, “목표지향적 자기적응 고차 hp 유한요소법,” 한국지구시스템학회지, Vol. 47, No. 4, pp. 574-584.
남명진, 황세호, 2010, “지표부근에서의 노멀전기검층 수치모델링,”자원환경지질, 43, pp. 259-267.
Abubakar, A., Habashy, T. M., Druskin, V., Knizhnerman, L., and Davydycheva, S., 2006, “ 3D parametric inversion algorithm for triaxial induction data,”Geophysics, 71, G1-G9.
Anderson, B., I., 2001, “odeling and inversion methods for the interpretation of resistivity logging tool responses,” Ph. D. thesis, Delft University of Technology.
Barber, T., Anderson, B. I., Abubakar, A., Broussard, T., Chen, K. C., Davydycheva, S., Druskin, V., Habashy, T., Homan, D., Minerbo, G., Rosthal, R., Schlein, R., and Wang, H., 2004, “etermining formation resistivity anisotropy in the presence of invasion,”SPE annual technical conference and exhibition, Houston, TX, USA.
Doll, H.G., 1949, “ntroduction to induction logging and application to logging of wells drilled with oil base mud,” J. Petroleum Technology, 1, pp. 148-162.
Lacour-Gayet, P., 1981, “he Groningen effect, causes and a partial remedy,”Schlumberger Technical Review, 29, pp. 37-47.
Nam, M. J., Pardo, D., and Torres-Verdín, 2010a, “ssessment of Delaware and Groningen effects on dual-laterolog measurements with a self-adaptive hp finite-element method,” Geophysics (in press).
Nam, M. J., Pardo, D., and Torres-Verdín, 2010b, “imulation of tri-axial induction measurements in dipping, invaded, and anisotropic formations using a Fourier series expansion in a non-orthogonal system of coordinates and a selfadaptive hp finite-element method,”Geophysics, 75, pp. F83-F95.
Nam, M. J., Pardo, D., Torres-Verdín, Hwang, S., Park, K. G., and Lee, C., 2010c, “imulation of eccentricity effects on short- and long-normal logging measurements using a Fourier-hp-finite-element method,”Exploration Geophysics, 63, pp. 118-128.
Pardo, D., Demkowicz, L., Torres-Verdín, C., and Tabarovsky, L., 2006, “ goal-oriented hp-adaptive finite element method with electromagnetic applications. Part I: electrostatics,” International Journal for Numerical Methods in Engineering, 65, pp. 1269-1309.
Pardo, D., Demkowicz, L., Torres-Verdín, C., and Paszynski, M., 2007, “ goal-oriented hp-adaptive finite element method with electromagnetic applications. Part II: Electromagnetics,” Computer Method in Applied Mechanics and Engineering, 196, pp. 37-40.
Trouiller, J. C., and Dubourg, I., 1994, “better deep laterolog compensated for Groningen and reference effects,” 35th Annual Symposium, SPWLA, Paper VV.
Woodhouse, R., 1978, “he laterolog Groningen phantom can cost you money,”19th Annual Symposium, SPWLA, Paper R.
Zhdanov, M., Kennedy, D., and Peksen, E., 2001, “oundations of tensor induction well-logging,”Petrophyscis, 42, pp. 588-610.

Information

Publisher :The Korean Society of Mineral and Energy Resources Engineers
Publisher(Ko) :한국자원공학회
Journal Title :Journal of the Korean Society for Geosystem Engineering
Journal Title(Ko) :한국지구시스템공학회지
Volume : 47
No :4
Pages :539-548

[1] 남명진, 2010, “목표지향적 자기적응 고차 hp 유한요소법,” 한국지구시스템학회지, Vol. 47, No. 4, pp. 574-584.

[2] 남명진, 황세호, 2010, “지표부근에서의 노멀전기검층 수치모델링,”자원환경지질, 43, pp. 259-267.

[3] Abubakar, A., Habashy, T. M., Druskin, V., Knizhnerman, L., and Davydycheva, S., 2006, “ 3D parametric inversion algorithm for triaxial induction data,”Geophysics, 71, G1-G9.

[4] Anderson, B., I., 2001, “odeling and inversion methods for the interpretation of resistivity logging tool responses,” Ph. D. thesis, Delft University of Technology.

[5] Barber, T., Anderson, B. I., Abubakar, A., Broussard, T., Chen, K. C., Davydycheva, S., Druskin, V., Habashy, T., Homan, D., Minerbo, G., Rosthal, R., Schlein, R., and Wang, H., 2004, “etermining formation resistivity anisotropy in the presence of invasion,”SPE annual technical conference and exhibition, Houston, TX, USA.

[6] Doll, H.G., 1949, “ntroduction to induction logging and application to logging of wells drilled with oil base mud,” J. Petroleum Technology, 1, pp. 148-162.

[7] Lacour-Gayet, P., 1981, “he Groningen effect, causes and a partial remedy,”Schlumberger Technical Review, 29, pp. 37-47.

[8] Nam, M. J., Pardo, D., and Torres-Verdín, 2010a, “ssessment of Delaware and Groningen effects on dual-laterolog measurements with a self-adaptive hp finite-element method,” Geophysics (in press).

[9] Nam, M. J., Pardo, D., and Torres-Verdín, 2010b, “imulation of tri-axial induction measurements in dipping, invaded, and anisotropic formations using a Fourier series expansion in a non-orthogonal system of coordinates and a selfadaptive hp finite-element method,”Geophysics, 75, pp. F83-F95.

[10] Nam, M. J., Pardo, D., Torres-Verdín, Hwang, S., Park, K. G., and Lee, C., 2010c, “imulation of eccentricity effects on short- and long-normal logging measurements using a Fourier-hp-finite-element method,”Exploration Geophysics, 63, pp. 118-128.

[11] Pardo, D., Demkowicz, L., Torres-Verdín, C., and Tabarovsky, L., 2006, “ goal-oriented hp-adaptive finite element method with electromagnetic applications. Part I: electrostatics,” International Journal for Numerical Methods in Engineering, 65, pp. 1269-1309.

[12] Pardo, D., Demkowicz, L., Torres-Verdín, C., and Paszynski, M., 2007, “ goal-oriented hp-adaptive finite element method with electromagnetic applications. Part II: Electromagnetics,” Computer Method in Applied Mechanics and Engineering, 196, pp. 37-40.

[13] Trouiller, J. C., and Dubourg, I., 1994, “better deep laterolog compensated for Groningen and reference effects,” 35th Annual Symposium, SPWLA, Paper VV.

[14] Woodhouse, R., 1978, “he laterolog Groningen phantom can cost you money,”19th Annual Symposium, SPWLA, Paper R.

[15] Zhdanov, M., Kennedy, D., and Peksen, E., 2001, “oundations of tensor induction well-logging,”Petrophyscis, 42, pp. 588-610.

Journal of the Korean Society of Mineral and Energy Resources Engineers ISSN:2288-0291(Print) 2288-2790(Online) 한국자원공학회지

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