Methods and apparatus for remote real time oil field management

• US 7,096,092 B1
• Filed: 11/03/2000
• Issued: 08/22/2006
• Est. Priority Date: 11/03/2000
• Status: Expired due to Term

• Current Assignee: Schlumberger Technology Corporation (SLB)
• Original Assignee: Schlumberger Technology Corporation (SLB)
• Inventors: Tilke, Peter Gerhard, Thambynayagam, Raj Kumar Michael, Ramakrishnan, Terizhandur S., Raghuraman, Bhavani
• Primary Examiner(s): Picard, Leo
• Assistant Examiner(s): Garland, Steven R.
• Application Number:
  US09/705,674
• Time in Patent Office: 2,118 Days
• Field of Search: 700/281, 700/282, 700/9, 702 6- 13, 340/853.1, 340/853.3, 166/267, 166/66, 166/53, 166/66.1, 166/250.01, 705/412, 705/1, 709/217
• US Class Current: 700/281
• CPC Class Codes: E21B 43/00 Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells applicable only to water E03B
• CPC Class Codes: E21B 47/00 Survey of boreholes or wells monitoring pressure or flow of drilling fluid E21B21/08
• CPC Class Codes: E21B 49/00 Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells

Abstract

A method of managing oil fields include installing oil field sensors, coupling them to a local CPU having memory, programming the CPU for data collection and data analysis, and coupling local oil field CPUs to a web server. Human experts are granted access to oil field data in real time via the Internet. The local CPUs provide different levels of data to the web server. The web server provides the option to view raw data, partially analyzed data, or fully analyzed data. The local CPUs are programmed with parameters for analyzing the data and automatically determining the presence of anomalies. Upon detecting the occurrence of an anomaly, the local CPUs are programmed to notify one or more human experts by email, pager, telephone, etc. If no human expert responds to the notification within a programmed period of time, the local CPU automatically takes a programmed corrective action.

Claims

1. A method for remote real time oil field management, comprising:

a) installing at least one sensor in an oil field;

b) coupling the at least one sensor to a CPU memory located at the oil field;

c) programming the CPU to collect and store data from the at least one sensor;

d) programming the CPU to at least partially analyze the data; and

e) providing remote access to the data, wherein;

said step of programming the CPU to at least partially analyze the data includes programming the CPU to determine covariance of the data.

2. A method according to claim 1, further comprising:

f) providing remote access to the at least partial analysis via the Worldwide Web.

3. A method according to claim 2, wherein:

said step of programming the CPU to at least partially analyze the data includes programming the CPU to determine whether data falls outside programmed bounds.

4. A method according to claim 2, wherein:

said step of programming the CPU to at least partially analyze the data includes programming the CPU to determine whether the data is following a trend.

5. A method according to claim 2, wherein:

said step of programming the CPU to at least partially analyze the data includes programming the CPU to determine whether a function of the data falls outside programmed limits.

6. A method according to claim 2, wherein:

said step of programming the CPU to at least partially analyze the data includes programming the CPU to apply a correlation function.

7. A method according to claim 1, further comprising:

coupling the CPU to a separate Web server.

8. A method according to claim 1, wherein:

said step of programming the CPU to store data includes programming the CPU to compress data.

9. A method for remote real time oil field management, comprising:

a) installing at least one sensor in an oil field;

b) coupling the at least one sensor to a CPU with memory located at the oil field;

c) programming the CPU to collect and store data from the at least one sensor;

d) programming the CPU to at least partially analyze the data;

e) providing remote access to the data; and

f) programming the CPU to determine whether results of the at least partial analysis correspond to an anomaly, wherein said anomaly is a parameter going out of bounds within a predetermined interval.

10. A method according to claim 9, further comprising:

g) programming the CPU to automatically notify one or more persons if the results of the at least partial analysis corresponds to an anomaly, wherein

said step automatically notifying includes one of sending electronic mail, calling a pager, calling a telephone number, activating an alarm, broadcasting an RF signal, transmitting a signal to a satellite, transmitting a microwave signal, sending a signal via a LAN, or sending a signal via a WAN.

11. A method for remote real time oil field management, comprising:

a) installing at least one sensor in an oil field;

b) coupling the at least one sensor to a CPU with memory located at the oil field;

c) programming the CPU to collect and store data from the at least one sensor; and

d) providing remote access to the data, wherein

said step of programming the CPU to store data includes programming the CPU to decimate based on age of the data.

12. A method according to claim 11, wherein:

older data is decimated at a higher proportion than newer data.

13. An apparatus for remote real time oil field management, comprising:

a) at lease one sensor installed in an oil field;

b) at least one CPU with memory located at the oil field coupled to said at least one sensor, said at least one CPU being programmed to collect data from said at least one sensor and store the date in said memory; and

c) communications means for coupling said CPU to a communications network, wherein said CPU is programmed to determine covariance of the data.

14. An apparatus according to claim 13, wherein:

said CPU is programmed to at least partially analyze the data; and

said communications network includes the Worldwide Web.

15. An apparatus according to claim 13, wherein:

said CPU is programmed to determine whether data falls outside programmed bounds.

16. An apparatus according to claim 13, wherein:

said CPU is programmed to determine whether the data is following a trend.

17. An apparatus according to claim 13, wherein:

said CPU is programmed to determine whether a function of the data falls outside programmed limits.

18. An apparatus according to claim 13, wherein:

said CPU is programmed to apply a correlation function to the data.

19. An apparatus according to claim 13, further comprising:

d) a separate Web server coupled to said CPU.

20. An apparatus according to claim 13, further comprising:

d) data compression means for compressing data stored by said CPU.

21. An apparatus for remote real time oil field management, comprising:

a) at least one sensor installed in an oil field;

b) at least one CPU with memory located at the oil field coupled to said at least one sensor, said at least one CPU being programmed to collect data from said at least one sensor and store the data in said memory; and

c) communications means for coupling said CPU to a communications network, wherein said CPU is programmed to at least partially analyze the data, said CPU is programmed to determine whether results of the at least partial analysis correspond to an anomaly and said anomaly is a parameter going out of bounds within a predetermined interval.

22. An apparatus according to claim 21, further comprising:

d) means for automatically notifying one or more persons when the CPU determines that the results of the at least partial analysis correspond to an anomaly.

23. An apparatus according to claim 22, wherein:

said means for automatically notifying is selected from the group consisting of means for sending electronic mail, means for calling a pager, means for calling a telephone number, means for activating an alarm, means for broadcasting an RF signal, means for transmitting a signal to a satellite, means for transmitting a microwave signal, means for sending a signal via a LAN, and means for sending a signal via a WAN.

24. An apparatus for remote real time oil field management, comprising:

a) at least one sensor installed in an oil field;

b) at least one CPU with memory located at the oil field coupled to said at least one sensor, said at least one CPU being programmed to collect data from said at least one sensor and store the data in said memory;

c) communications means for coupling said CPU to a communications network; and

d) data compression means for compressing data stored by said CPU, wherein said data compression means includes means for decimating data based on age of the data.

25. A method, comprising:

a) installing at least one sensor in an oil field;

b) coupling the at least one sensor to a CPU with memory located at the oil field;

c) programming the CPU to collect and store data from the at least one sensor;

d) providing remote access to the data;

e) programming the CPU to at least partially analyze the data; and

f) programming the CPU to apply a correlation function, wherein said step of programming the CPU to apply a correlation function includes programming the CPU to

i. let active wells produce or inject with a nearly constant rate; and

ii. perform a periodic flowrate pulsing of the wells in a manner whereby the active wells are not pulsed at the same time or with the same amplitude.

26. A method according to claim 25, further comprising:

said step of programming the CPU to apply a correlation function includes programming the CPU to measure pressure response in passive wells while pulsing in the active wells.

27. A method according to claim 26, further comprising:

said step of programming the CPU to apply a correlation function includes programming the CPU to differentiate the pressure responses.

28. A method according to claim 27, further comprising:

said step of programming the CPU to apply a correlation function includes programming the CPU to differentiate the flow rates.

29. A method according to claim 28, further comprising:

said step of programming the CPU to apply a correlation function includes programming the CPU to cross correlate differentiated data.

30. A method according to claim 29, further comprising:

said step of programming the CPU to apply a correlation function includes programming the CPU to determine a discernible peak in the cross correlated differentiated data.

31. A method according to claim 30, further comprising:

said step of programming the CPU to apply a correlation function includes programming the CPU to convert the data value at the peak to mobility.