Method and apparatus for seismic data acquisition
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01V-001/18
G01V-001/16
출원번호
US-0448547
(2003-05-30)
등록번호
US-7310287
(2007-12-18)
발명자
/ 주소
Ray,Clifford H.
Fisseler,Glenn D.
Haygood,Hal B.
출원인 / 주소
Fairfield Industries Incorporated
대리인 / 주소
Jackson Walker L.L.P.
인용정보
피인용 횟수 :
68인용 특허 :
68
초록▼
A marine seismic exploration method and system comprised of continuous recording, self-contained ocean bottom pods characterized by low profile casings. An external bumper is provided to promote ocean bottom coupling and prevent fishing net entrapment. Pods are tethered together with flexible, non-r
A marine seismic exploration method and system comprised of continuous recording, self-contained ocean bottom pods characterized by low profile casings. An external bumper is provided to promote ocean bottom coupling and prevent fishing net entrapment. Pods are tethered together with flexible, non-rigid, non-conducting cable used to control pod deployment. Pods are deployed and retrieved from a boat deck configured to have a storage system and a handling system to attach pods to cable on-the-fly. The storage system is a juke box configuration of slots wherein individual pods are randomly stored in the slots to permit data extraction, charging, testing and synchronizing without opening the pods. A pod may include an inertial navigation system to determine ocean floor location and a rubidium clock for timing. The system includes mathematical gimballing. The cable may include shear couplings designed to automatically shear apart if a certain level of cable tension is reached.
대표청구항▼
What is claimed is: 1. An ocean bottom seismic data collection system comprising: a. a water tight case having a wall defining an internal compartment; b. at least one geophone disposed within said case c. a clock disposed within said case; d. a power source disposed within said case; and e. a seis
What is claimed is: 1. An ocean bottom seismic data collection system comprising: a. a water tight case having a wall defining an internal compartment; b. at least one geophone disposed within said case c. a clock disposed within said case; d. a power source disposed within said case; and e. a seismic data recorder disposed within said case, f. said system having a negative buoyancy; g. wherein said system is self contained and requires no external communications or controls during recording, 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 said wall. 2. The system of claim 1, wherein said seismic data recorder includes wrap around memory media. 3. The system of claim 1, wherein the each plate is characterized by a width and the wall is characterized by a height, wherein the width of the plates is greater than the height of the wall. 4. The system of claim 1 wherein the case is substantially symmetrical. 5. The system of claim 1, the case having a first axis and a second axis wherein the case is substantially symmetrical about each of the first and second axes. 6. The system of claim 1, wherein the case is characterized by a height and a diameter wherein the diameter is greater than said height. 7. The system of claim 6, wherein the height is no more than 50% of the diameter. 8. The system of claim 1, wherein at least one plate is defined by an internal surface and an external surface, wherein the external surface is provided with grooves to enhance coupling of system with the ocean bottom. 9. The system of claim 1, wherein at least one plate is defined by an internal surface and an external surface, wherein the external surface is provided with projections to enhance coupling of system with the ocean bottom. 10. The system of claim 1, wherein at least one plate is defined by an internal surface and an external surface, wherein the external surface is provided with ridges to enhance coupling of system with the ocean bottom. 11. The system of claim 10, wherein said ridges form a chevron pattern on the external surface of said plate. 12. The system of claim 1, further comprising a bumper disposed on said case. 13. The system of claim 12, wherein said bumper is disposed along said shallow wall. 14. The system of claim 13, wherein said bumper includes a protrusion that extends beyond the peripheries of said plates. 15. The system of claim 14, wherein said bumper is defined by a protrusion cross-section and said cross-section is wedge-shaped. 16. The system of claim 14, wherein said bumper is defined by a protrusion cross-section and said cross-section is rounded in shape. 17. The system of claim 12, wherein said bumper is comprised of at least one hinged flipper. 18. The system of claim 17, wherein said hinged flipper is mounted between a pair of adjacent, rounded brackets attached to said case. 19. The system of claim 1, further comprising a. three geophones disposed within said case b. acompass; and c. a tilt meter. 20. The system of claim 1, further comprising an acoustical location transducer. 21. The system of claim 1, further comprising a hydrophone. 22. The system of claim 1 further comprising internal ribbing disposed within said compartment to provide support to said plates. 23. The system of claim 1, further comprising a latching mechanism attached to said wall. 24. The latching mechanism of claim 23, wherein said latching mechanism is an attachment bracket. 25. The latching mechanism of claim 23, wherein said latching mechanism is a clamp. 26. The system of claim 1, further comprising a latching mechanism attached to said first plate. 27. The latching mechanism of claim 26, wherein said latching mechanism is an attachment bracket. 28. The latching mechanism of claim 26, wherein said latching mechanism is a clamp. 29. The system of claim 1, further comprising an external connector in electrical communication with at least one of said geophone, clock, power source and seismic recorder, said connector extending through the wall of said case and disposed within said wall so as to be set in from the external surface of said wall. 30. The system of claim 29, further comprising a water tight, pressure resistant cap disposed over said external connector. 31. The system of claim 1, further comprising a radio frequency identification disposed on the external surface of the case. 32. The system of claim 1, wherein said power source provides all power to the system while deployed under water. 33. The system of claim 1, wherein said power source is a lithium-ion battery. 34. The system of claim 1, further comprising an internal control mechanism for controlling all functions of the system while deployed under water. 35. The system of claim 1, further comprising an internal control mechanism for controlling all functions of the system while deployed under water. 36. An ocean bottom seismic data collection system comprising: a. a disk-shaped, water tight case formed of two parallel, circular plates joined along their peripheries by a shallow wall to define an internal compartment; b. at least one geophone disposed within said case c. a clock disposed within said case; d. a seismic data recorder disposed within said case; and e. a power source disposed within said case, f. said system having a negative buoyancy. 37. The system of claim 36, wherein said seismic data recorder includes wrap around memory media. 38. The system of claim 36, wherein the each plate is characterized by a width and the wall is characterized by a height, wherein the width of the plates is greater than the height of the wall. 39. The system of claim 36 wherein the case is substantially symmetrical. 40. The system of claim 36, the case having a first axis and a second axis wherein the case is substantially symmetrical about each of the first and second axes. 41. The system of claim 36, wherein the case is characterized by a height and a diameter wherein the diameter is greater than said height. 42. The system of claim 41, wherein the height is no more than 50% of the diameter. 43. The system of claim 36, wherein at least one plate is defined by an internal surface and an external surface, wherein the external surface is provided with grooves to enhance coupling of system with the ocean bottom. 44. The system of claim 36, wherein at least one plate is defined by an internal surface and an external surface, wherein the external surface is provided with projections to enhance coupling of system with the ocean bottom. 45. The system of claim 36, wherein at least one plate is defined by an internal surface and an external surface, wherein the external surface is provided with ridges to enhance coupling of system with the ocean bottom. 46. The system of claim 45, wherein said ridges form a chevron pattern on the external surface of said plate. 47. The system of claim 36, further comprising internal ribbing disposed within said compartment to provide support to said plates. 48. The system of claim 36, further comprising an external connector in electrical communication with at least one of said geophone, clock, power source and seismic recorder, said connector extending through the wall of said case and disposed within said wall so as to be set in from the external surface of said wall. 49. The system of claim 48, further comprising a water tight, pressure resistant cap disposed over said external connector. 50. The system of claim 36, further comprising a radio frequency identification disposed on the external surface of the case. 51. The system of claim 36, wherein said power source provides all power to the system while deployed under water. 52. An ocean bottom seismic data collection system comprising: a. a water tight case, wherein the case comprises a first plate having a first periphery and a second plate having a second periphery, the first and second plates joined along their peripheries by a wall so as to define an internal compartment; b. at least one geophone disposed within said case c. a clock disposed within said case; d. a power source disposed within said case; and e. a seismic data recorder disposed within said case, f. said case having a negative buoyancy; g. wherein said system is self contained and all electrical wiring for the system is contained within said case.
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