Patent ID: 7561493

Claim:
A land based seismic data collection unit comprising: a. a non-spherical, fully enclosed case formed of a single housing, said case having a wall defining an internal compartment within said housing; b. at least one geophone internally fixed within said housing, wherein said geophone is a multi-component geophone capable of measuring seismic signals in at least two directions angularly oriented to one another; c. a clock disposed within said housing; d. a power source disposed within said housing; and e. a seismic data recorder comprised of continuous, long-term memory disposed within said housing and capable of storing seismic reflections from a seismic survey from a series of seismic shots over an extended period of time, f. wherein each of said elements b-e include an electrical connection and all electrical connections between any elements b-e are contained within said housing; and g. wherein said geophone is coupled to said seismic data recorder to permit seismic signals detected by said geophones to be recorded on said seismic data recorder, h. wherein the case comprises a first plate having a first periphery and a second plate having a second periphery, wherein the plates are joined along their peripheries by a circular wall.