Methods and systems for deploying seismic devices

摘要

Methods and systems for acoustically determining reservoir parameters of subterranean formations. A tool comprising at least one seismic source or seismic receiver mounted thereon; a conveyance configured for movement of the acoustic tool in a borehole traversing the subterranean formations; and a source retainer configured or designed for permanent deployment in the borehole to removably retain the acoustic tool in the borehole. The source retainer when deployed provides acoustic coupling with the borehole and removably retains the acoustic tool in the borehole so that, over multiple deployments, the acoustic tool is repeatedly deployed at the same predetermined location and orientation relative to the subterranean formation, and with the same acoustic coupling to the borehole.

主权项

1. A system for taking acoustic measurements relating to subterranean formations traversed by a borehole, comprising:
at least one acoustic tool comprising;
an outer surface;two or more standoffs located on the outer surface; anda first projection located on the outer surface; a conveyance to deploy the acoustic tool in the borehole; a tool retainer permanently deployed in the borehole to removably retain the acoustic tool at a predetermined location and orientation relative to the subterranean formations, comprising;
a slide leading to a groove; anda second projection located on the tool retainer;wherein one of the two or more standoffs of the outer surface of the acoustic tool contacts the slide during deployment and engages the groove, orienting the first projection to contact the second projection and acoustically couple another of the two or more standoffs and the tool retainer; a computer in communication with the acoustic tool; and a set of instructions executable by the computer that, when executed:
process the acoustic measurements; andderive parameters relating to the formation based on the acoustic measurements.