[특허]Apparatus and method for reducing noise in seismic data

Apparatus and method for reducing noise in seismic data 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04W-004/00 G01V-001/22
출원번호	US-0324562 (2011-12-13)
등록번호	US-8982810 (2015-03-17)
발명자 / 주소	Elder, Keith Kooper, Steven Feszthammer, Andras Clayton, Donald E. Polk, Henry T.
출원인 / 주소	INOVA Ltd.
대리인 / 주소	Mossman, Kumar & Tyler PC
인용정보	피인용 횟수 : 0 인용 특허 : 71

초록 ▼

A method of acquiring seismic data. The method includes receiving seismic signals at one or more sensors; sampling the received seismic signals into a plurality of samples, compressing at least some of the samples in selected packets before arranging the compressed samples into packets; arranging the samples into a plurality of packets; computing packet efficiency for a packet of the plurality of packets; transmitting the plurality of packets by varying time intervals between transmissions of the packets.

대표청구항 ▼

1. A method of acquiring seismic data, comprising: receiving seismic signals at one or more sensors;sampling the received seismic signals into a plurality of samples;arranging the plurality of samples into a plurality of packets;transmitting the plurality of packets; andreducing a coherent noise by making a transmission noise non-periodic by selectively varying time intervals between transmissions of the packets, wherein the transmission noise is from the transmission of the plurality of packets. 2. The method of claim 1 further comprising: determining the time intervals between the transmissions of the packets using a random number generator. 3. The method of claim 1 further comprising: using a time slot scheme for assigning the time intervals between the transmissions of the packets. 4. The method of claim 1 wherein each of the plurality of samples has an identical bit length. 5. The method of claim 1, wherein the time intervals between the transmissions of the packets corresponds to a time slot assignment scheme. 6. The method of claim 5, further comprising compressing at least one of the plurality of samples by deleting selected bits from the at least one of the plurality of samples. 7. The method of claim 1, wherein transmitting the plurality of packets further comprises transmitting the packets via one of: (i) land cable; (ii) wirelessly; (iii) an ocean bottom cable; and (iv) a streamer cable that is in data communication with a central recording unit on a vessel. 8. The method of claim 1 further comprising: wherein the reduced coherent noise includes periodic signals that occur due to at least one of (i) a common mode of induction at a receiver, (ii) electronic switching, (iii) limited power supply noise rejection, (iv) common power supply, (v) common ground plane, and (vi) high energy computation bursts. 9. The method of claim 1 further comprising: receiving the transmitted packets at a remote unit; andprocessing the packets to obtain information about a subsurface structure. 10. A seismic data acquisition apparatus, comprising: a circuit configured to receive seismic signals from a sensor and digitize the received seismic signals to provide a plurality of samples, each sample having a selected bit length;a processor configured to: arrange the plurality of samples into a plurality of packets;transmit the plurality of packets; andreduce a coherent noise by making a transmission noise non-periodic by selectively varying time intervals between transmissions of the packets, wherein the transmission noise is from the transmission of the plurality of packets. 11. The seismic data acquisition apparatus of claim 10, wherein each of the samples has an identical bit length. 12. The seismic data acquisition apparatus of claim 10, wherein the processor is further configured to utilize a time slot scheme for the transmission of the packets. 13. The seismic data acquisition apparatus of claim 10, wherein the processor is further configured to compress selected samples before arranging such samples in the packets. 14. The seismic data acquisition apparatus of claim 13, wherein the processor compresses the selected samples by deleting selected bits from such samples. 15. The seismic data acquisition apparatus of claim 10, wherein the processor is further configured to compute packet efficiency for a packet in the plurality of packets before transmitting such packets. 16. The seismic data acquisition apparatus of claim 13, wherein the processor is further configured to place an indicator in the packets that include compressed samples in order to identify the compressed samples. 17. The seismic data acquisition apparatus of claim 10 further comprising a remote unit in data communication with the processor, wherein the remote unit is configured to receive the transmitted packets; decompress the received packets; and store the decompressed packets. 18. The seismic data acquisition apparatus of claim 10, wherein the packets are transmitted via one of: (i) a land cable; (ii) wirelessly; (iii) an ocean bottom cable; and (iv) a streamer cable in data communication with a central recording unit on a vessel.

이 특허에 인용된 특허 (71)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Apparatus and method for reducing noise in seismic data 원문보기

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Apparatus and method for reducing noise in seismic data 원문보기

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