Adaptive seismometer group recorder having enhanced operating capabilities

• US 4,725,992 A
• Filed: 12/03/1985
• Issued: 02/16/1988
• Est. Priority Date: 12/03/1985
• Status: Expired due to Term

• Current Assignee: Amooco Corporation
• Original Assignee: Amoco Corporation (BP PLC)
• Inventors: Rampuria, Sampat M., McNatt, Michael S., McKinley, Henry J. Jr., Warmack, Ralph E.
• Primary Examiner(s): Tarcza, Thomas H.
• Assistant Examiner(s): Lobo, Ian J.
• Application Number:
  US06/804,404
• Time in Patent Office: 805 Days
• Field of Search: 367/76, 367/77, 367/63, 364/421
• US Class Current: 367/77
• CPC Class Codes: G01V 1/223 Radioseismic systems
• CPC Class Codes: G01V 1/242 Seismographs

Abstract

In a seismic exploration system, an adaptive seismometer group recorder having enhanced operating capabilities for acquiring, processing, and storing seismic signals is provided. The adaptive seismometer group recorder includes a solid state memory, a microprocessor and input means for electronically downloading operating programs into the solid state memory whereby menus of recorder operating parameter are provided by the operating programs to the microprocessor to electronically reconfigure the SGR for various geological settings. The microprocessor is responsive to coded signals for selecting sets of recorder operating parameters from the menu of recorder operating parameters provided by the operating programs. The electronically downloaded menus of recorder operating parameters digitally reconfigure the operating characteristics of the seismometer group recorder without necessitating the implementation of hard wired circuitry changes.

Claims

1. In a seismic exploration system, an adaptive seismometer group recorder having enhanced operating capabilities for acquiring, processing and storing seismic signals from at least one geophone, comprising:

(a) a first solid state memory;

(b) input means with the adaptive seismometer recorder for electronically downloading a plurality of operating programs providing menus of recorder operating parameters into the first solid state memory of the seismometer group recorder;

(c) processing means with the seismometer. group recorder responsive to coded signals transmitted from a remote control unit for selecting sets of recorder operating parameters from the menus of recorder operating parameters provided by the operating programs to acquire and process the seismic signals; and

(d) a second solid state memory for storing acquired and processed seismic data from the processing means.

2. The adaptive seismic recorder of claim 1 wherein said processing means comprises:

(a) a microprocessor;

(b) a RF receiver in communication with the microprocessor; and

(c) electronically programmable memory in communication with the microprocessor having operating programs contained therein for use by the microprocessor to evaluate the coded signals received by the RF receiver.

3. The seismometer group recorder of claim 2 wherein said electronically programmable memory includes nonvolatile memory.

4. The seismometer group recorder of claim 2 wherein said electronically programmable memory includes volatile memory.

5. The seismometer group recorder of claim 1 further including output means with the adaptive seismometer group recorder for electronically transferring the seismic signals stored in the second solid state memory to a transcriber processing unit.

6. The seismometer group recorder of claim 1 wherein the first and second solid state memory comprises a magnetic bubble memory subsystem.

7. The seismometer group recorder of claim 1 further including verification means to verify operating programs electronically downloaded into the seismometer group recorder for completeness and accuracy.

8. The seismometer group recorder of claim 5 wherein said input means and output means comprise:

a high speed data transceiver responsive to coded signals from the processing means for electronically downloading operating programs into the first solid state memory and for electronically transferring seismic signals stored in the second solid state memory to the transcriber unit.

9. The seismometer group recorder of claim 1 wherein the menus of recorder operating parameters provided by the operating programs are selected from the group comprising:

(a) acquisition parameters;

(b) recorder operating instructions;

(c) seismic signal processing instructions; and

(d) diagnostic instructions.

10. The seismometer group recorder of claim 9 wherein said acquisition parameters include seismic signal sampling rate, notch filter selection, low-cut filter frequency selection, preamplifer gain, and external gain.

11. The seismometer group recorder of claim 9 wherein said recorder operating instructions include the frequency of the coded signal to which said processing means responds.

12. The seismometer group recorder of claim 9 wherein said processing instructions include weighting and stacking algorithms and window lengths for processing the seismic signals.

13. The seismometer group recorded claim 1 wherein said first and second solid state memory comprise high capacity, battery backed up CMOS DRAM memory.

14. A method of seismic exploration for acquiring, processing and storing seismic signals with an adaptive seismometer group recorder deployed in a region of exploration interest comprising the steps of:

(a) transmitting a first coded signal from a remote unit to the seismometer group recorder to select a first set of recorder operating parameters from a first menu of recorder operating parameters provided by first operating programs resident therein;

(b) acquiring and processing seismic signals generated by at least one geophone electrically coupled to each seismometer group recorder in accordance with the selected first set of recorder operating parameters;

(c) electronically downloading into the seismometer group recorder second operating programs providing a second menu of seismic recorder operating parameters;

(d) transmitting a second coded signal to the seismometer group recorder to select a second set of recorder operating parameters from the second menu of seismic recorder operating parameters provided by the second operating programs resident therein; and

(e) acquiring and processing the seismic signals in the seismometer group recorder in accordance with the selected second set of seismic recorder operating parameters.

15. The method of claim 14 wherein the first and second menus of recorder operating parameters provided by the first and second operating programs can include:

(a) acquisition parameters;

(b) recorder operating instructions;

(c) seismic signal processing instructions; and

(d) diagnostic instructions.

16. The method of claim 14 further including:

(a) storing a plurality of seismic signals acquired and processed in accordance with the selected recorder operating parameters in a solid state memory of the seismometer group recorder;

(b) retrieving the seismometer group recorder to a central location; and

(c) electronically coupling the retrieved seismometer group recorder to a transcriber unit for electronically transferring thereto the plurality of seismic signals stored in a solid state memory.

17. In a seismic exploration system, an adaptive seismometer group recorder having enhanced operating capabilities for acquiring, processing and storing seismic signals generated from at least one geophone electrically coupled thereto in response to seismic energy imparted into the earth, comprising:

(a) control means for transmitting coded signals to the seismometer group recorder to select a set of recorder operating parameters for acquiring, processing and storing seismic signals therein;

(b) processing means with the seismometer group recorder responsive to the transmitted coded signals for configuring the seismometer group recorder to acquire, process and store seismic signals in accordance with selected recorder operating parameters by selecting the recorder operating parameters from a menu of recorder operating parameters resident in the seismometer group recorder; and

(c) means for electronically downloading additional operating programs, providing additional menus of recorder operating parameters, into the seismometer group recorder, such that the processing means responsive to code signals transmitted by the control means can reconfigure the seismometer group recorder to acquire, process and store seismic signals in accordance with the recorder operating parameters selected from additional menus of recorder operating parameters provided by the additional operating programs electronically downloaded into the seismometer group recorder.

18. In the system of claim 17 further including verification means with seismometer group recorder for verifying the accuracy and completeness of the electronically downloaded additional operating programs.

21. The method of claim 17 further including the step of electronically downloading second operating programs providing second menus of recorder operating parameters into the adaptive seismometer group recorder.

22. The method of claim 17 further including:

(a) assigning the seismometer group recorder a field location identifier with the first coded signal; and

(b) transmitting a third coded signal to the seismometer group recorders to verify the field location identifier.

23. The method of claim 21 further including transmitting a third coded signal to select diagnostic tests from the menu of recorder operating parameters to verify functionality of the seismometer group recorder.

19. A method of seismic exploration for acquiring, processing and storing seismic signals with an adaptive seismometer group recorder comprising the steps of:

(a) electronically downloading operating programs providing menus of recorder operating parameters into the adaptive seismometer group recorder;

(b) transmitting first coded signals to the seismometer group recorder to select a first set of recorder operating parameters from the first menu of recorder operating parameters to acquire, process and store seismic signals generated by at least one geophone electrically coupled to the seismometer group recorder; and

(c) transmitting second coded signals to select a second set of recorder operating parameters from the first menu of recorder operating parameters to acquire, process and store seismic signals generated by at least one geophone electrically coupled to the seismometer group recorder.

20. The method of claim 19 further including the steps of:

(a) transmitting third coded signals to the seismometer group recorder to select a first set of diagnostic tests from the menu of recorder operating parameters to check the functionality of the seismometer group recorder; and

(b) transmitting fourth coded signals to the seismometer group recorder to select a second set of diagnostic tests from the menu of recorder operating parameters to check the functionality of the seismometer group recorder.

24. A method of seismic exploration with an adaptive seismometer group recorder and a remote control unit comprising the steps of:

(a) electronically downloading operating programs providing means of recorder operating parameters into the seismometer group recorder;

(b) programming each seismometer group recorder to respond only to coded signals transmitted from the remote control unit containing its unique individual serial indentification code;

(c) transmitting a program call to the seismometer group recorder to assign a field location identifier and to select an initial set of recorder operating parameters from the menu of recorder operating parameters;

(d) transmitting a test call from the remote control unit to the seismometer group recorder to verify the field location identifier assignment and initiate diagnostic tests of the seismometer group recorder; and

(e) transmitting an acqusition call from the remote control unit to the seismomemter group recorder to activate the seismometer group recorder to acquire, process and store seismic data in accordance with the selected recorder operating parameters.

25. The method of claim 24 further including:

(a) retrieving the seismometer group recorder to a central location and electronically coupling them to a tanscriber unit; and

(b) electronically transferring the stored seismic signals to the transcriber unit.