Method and apparatus for land based seismic data acquisition
First Claim
1. 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.
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Accused Products
Abstract
A seismic exploration method and unit comprised of continuous recording, self-contained wireless seismometer units or pods. The self-contained unit may include a tilt meter, a compass and a mechanically gimbaled clock platform. Upon retrieval, seismic data recorded by the unit can be extracted and the unit can be charged, tested, re-synchronized, and operation can be re-initiated without the need to open the unit'"'"'s case. The unit may include an additional geophone to mechanically vibrate the unit to gauge the degree of coupling between the unit and the earth. The unit may correct seismic data for the effects of crystal aging arising from the clock. Deployment location of the unit may be determined tracking linear and angular acceleration from an initial position. The unit may utilize multiple geophones angularly oriented to one another in order to redundantly measure seismic activity in a particular plane.
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Citations
29 Claims
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1. A land based seismic data collection unit comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A land based seismic data collection unit comprising:
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a. a non-spherical, fully enclosed case formed of a single housing, said case having 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, said 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; 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-c include an electrical connection and all electrical connections between any elements b-c are contained within said housing. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28)
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29. A land based seismic data collection unit comprising:
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a. a non-spherical, fully enclosed case formed of a single housing, said case having 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, said 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; e. positional electronics disposed within said housing; f. orientation electronics disposed within said housing; and g. 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 times; h. wherein each of said elements b-g include an electrical connection and all electrical connections between any elements b-g are contained within said housing.
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Specification