Method of conducting drilling operations using vertical seismic

Details Method of conducting drilling operations using vertical seismic Method of conducting drilling operations using vertical seismic

1998-04-21

1999-11-30

Oda, Christine K.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Well logging

367 57, 367 81, 367911, 367 35, 367 46, 367 44, G01V 118, G06F 1900

Patent

active

059954469

ABSTRACT:
A method is described for providing improved seismic data to a driller to indicate position and spatial extent of a drilling target which may be up to several hundreds of feet ahead of a drill bit. In one embodiment, the method includes the steps of: survey design and data modeling, and definition of a drilling target point and a drilling interruption point; drilling down to a depth at which drilling will be interrupted; interruption of drilling; look-ahead borehole seismic survey (VSP); continuation of drilling; data processing and interpretation; coordinate update for optimum target intersection; and steering of drilling by borehole seismic data interpretation.

REFERENCES:
patent: H1232 (1993-09-01), DiSiena
patent: 5850622 (1998-12-01), Vassiliou et al.

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