Superior seismic data from the Borehole

Oilfield Review

Volumn 15, Issue 1, 2003, Pages 2-23+78

  Arroyo, José Luis ^a   Breton, Pascal ^b   Dijkerman, Hans ^c   Dingwall, Scott ^d   Guerra, Rafael ^g   Hope, Rune ^e   Hornby, Brian ^f   Williams, Mark ^f   Jimenez, Rogelio Rufino ^g   Lastennet, Thibaud ^d   Tulett, John ^d   Leaney, Scott ^g   Lim, T K ^g   Menkiti, Henry ^g   Puech, Jean Claude ^g   Burg, Ted Ter ^g   Verliac, Michel ^d  

^a PEMEX   (Mexico)

^b Calibration/Vis Around Well Grp   (France)

^c E and P   (Netherlands)

^d SCHLUMBERGER   (United States)

^e TOTAL   (France)

^f BP AMERICA INC   (United States)

^g Schlumberger ^*

Author keywords

[No Author keywords available]

Indexed keywords

BOREHOLES; DATA REDUCTION; DRILLING; LITHOLOGY;

BOREHOLE SEISMIC RECORDINGS;

SEISMOLOGY;

EID: 0038107492     PISSN: 09231730     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Review

References (15)

1. Breton P, Crépin S, Perrin J-C, Esmarsoy C, Hawthorn A, Meehan R, Underhill W, Frignet B, Haldorsen J, Harrold T and Raikes S: "Well-Positioned Seismic Measurements," Oilfield Review 14, no. 1 (Spring 2002): 32-45.
2. Anisotropy is the variation of a material property depending on the direction in which it is measured. Certain formations exhibit seismic velocity anisotropy, in which velocity measured parallel to bedding or fractures is different from velocity measured perpendicular.
3. Wuenschel PC: "The Vertical Array in Reflection Seismology - Some Experimental Studies," Geophysics 41, no. 2 (1976): 219-233.
4. Christie P, Dodds K, Ireson D, Johnson L, Rutherford J, Schaffner J and Smith N: "Borehole Seismic Data Sharpen the Reservoir Image," Oilfield Review 7, no. 4 (Winter 1995):18-31.
5. Breton et al, reference 1.
6. Tube waves are wave multiples that travel up and down in the wellbore fluid, and can dominate the late-time portion of borehole seismic waveform data. Hydrophones are especially susceptible to the effects of these waves because hydrophones respond to pressure changes in the wellbore, while geophones are coupled to the formation and are less susceptible to these effects
7. Tulett JR, Duncan GA and Thompson PR: "Borehole Seismic Air-Gun Sources: What's the Safe Distance from a Ship's Hull?" paper SPE 74177, presented at the SPE International Conference on Health, Safety and Environment in Oil and Gas Exploration and Production, Kuala Lumpur, Malaysia, March 20-22, 2002.
8. A corridor stack is a sum, or stack, of VSP traces processed to highlight primary reflections, then transformed into two-way time.
9. For other examples showing how walkaway data with long-offset information help reduce uncertainty in formation properties: Malinverno A and Leaney WS: "Monte Carlo Bayesian Look-Ahead Inversion of Walkaway Vertical Seismic Profiles," presented at the 64th EAGE Conference and Technical Exhibition, Florence, Italy, May 27-30, 2002.
10. Bryant I, Malinverno A, Prange M, Gonfalini M, Moffat J, Swager D, Thsys P and Verga F: "Understanding Uncertainty," Oilfield Review 14, no. 3 (Autumn 2002): 13-14.
11. Armstrong P, Verliac M, Monroy N, Ramiraz HB and Leite AO: "Shear Wave Applications from Zero-Offset VSP Data," presented at the 63rd EAGE Conference and Technical Exhibition, Amsterdam, The Netherlands, June 11-15, 2001.
12. Chiburis E, Franck C, Leaney S, McHugo S and Skidmore C: "Hydrocarbon Detection with AVO," Oilfield Reviews, no. 1 (January 1993): 42-50.
13. Leaney WS, Hope RR, Tcherkashnev S and Wheeler M: "Long-Offset AVO and Anisotropy Calibration Deep Offshore Nigeria," presented at the 64th EAGE Conference and Technical Exhibition, Florence, Itely, May 27-30, 2002.
14. A vertical transverse isotropic (VTI) medium has a vertical axis of symmetry. Elastic properties may vary vertically, but are constant in every horizontal direction.
15. Dingwall S, Puech JC and Louden F: "Resolving an AVO Ambiguity with Borehole Acoustic Data - A Case Study," presented at the 65th EAGE Conference and Technical Exhibition, Stavanger, Norway, June 2-3, 2003.