Drill bit source focusing
AssigneeSaudi Arabian Oil Company
InventorsAli Aldawood, Ali Al Zayer
Life of this patent
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Abstract
A computer implemented method that enables drill bit source focusing is described. The method includes obtaining, using at least one hardware processor, correlated drill bit gathers comprising a direct arrival from a downhole source to surface receivers; identifying, using the at least one hardware processor, at least one window around first breaks in the correlated drill bit gathers captured by the surface receivers, wherein the first breaks are isolated/bounded the at least one window; redatuming, using the at least one hardware processor, seismic data within the at least one window captured by respective surface receivers to generate source images; and generating, using the at least one hardware processor, a seismic migration image by multiplying the generated source images.
Claims15
A computer-implemented method that enables drill bit source focusing, comprising:
- obtaining, using at least one hardware processor, correlated drill bit gathers comprising a direct arrival from a downhole source to surface receivers;
- identifying, using the at least one hardware processor, at least one window around first breaks in the correlated drill bit gathers captured by the surface receivers, wherein the first breaks are isolated/bounded the at least one window;
- redatuming, using the at least one hardware processor, seismic data within the at least one window captured by respective surface receivers to generate source images;
- and
- generating, using the at least one hardware processor, a seismic migration image by multiplying the generated source images.
An apparatus comprising a non-transitory, computer readable, storage medium that stores instructions that, when executed by at least one processor, cause the at least one processor to perform operations comprising:
- obtaining correlated drill bit gathers comprising a direct arrival from a downhole source to surface receivers;
- identifying at least one window around first breaks in the correlated drill bit gathers captured by the surface receivers, wherein the first breaks are isolated/bounded the at least one window;
- redatuming seismic data within the at least one window captured by respective surface receivers to generate source images;
- and
- generating a seismic migration image by multiplying the generated source images.
A system, comprising:
- one or more memory modules;
- one or more hardware processors communicably coupled to the one or more memory modules, the one or more hardware processors configured to execute instructions stored on the one or more memory models to perform operations comprising:
- obtaining correlated drill bit gathers comprising a direct arrival from a downhole source to surface receivers;
- identifying at least one window around first breaks in the correlated drill bit gathers captured by the surface receivers, wherein the first breaks are isolated/bounded the at least one window;
- redatuming seismic data within the at least one window captured by respective surface receivers to generate source images;
- and
- generating a seismic migration image by multiplying the generated source images.
Dependencies are inferred from the claim text.