Monitoring system

• US 6,677,861 B1
• Filed: 09/28/2000
• Issued: 01/13/2004
• Est. Priority Date: 09/30/1999
• Status: Expired due to Term

• Current Assignee: In-Situ Incorporated
• Original Assignee: In-Situ Incorporated
• Inventors: Smith, Stanley B., Watson, Mark A., Henry, Kent D., Gray, Zachary A.
• Primary Examiner(s): Horabik, Michael
• Assistant Examiner(s): WONG, ALBERT KANG
• Application Number:
  US09/672,321
• Time in Patent Office: 1,202 Days
• Field of Search: 340/853.2, 340/853.3, 340/855.3, 370/254, 370/255, 710/104, 702/188, 709/217, 709/220, 709/221, 709/222, 166/250.01
• US Class Current: 340/855.3
• CPC Class Codes: E21B 17/01 Risers
• CPC Class Codes: E21B 17/023 Arrangements for connecting cables or wirelines to downhole devices
• CPC Class Codes: E21B 17/028 Electrical or electro-magnetic connections
• CPC Class Codes: E21B 41/0085 Adaptations of electric power generating means for use in boreholes
• CPC Class Codes: E21B 43/28 Dissolving minerals other than hydrocarbons, e.g. by an alkaline or acid leaching agent E21B43/241 takes precedence
• CPC Class Codes: E21B 47/00 Survey of boreholes or wells monitoring pressure or flow of drilling fluid E21B21/08
• CPC Class Codes: E21B 47/017 Protecting measuring instruments
• CPC Class Codes: E21B 47/06 Measuring temperature or pressure
• CPC Class Codes: E21B 47/07 Temperature
• CPC Class Codes: E21B 47/13 by electromagnetic energy, e.g. radio frequency
• CPC Class Codes: E21B 47/26 Storing data down-hole, e.g. in a memory or on a record carrier

Abstract

The present invention provides a tool assembly for use in field applications to monitor at least one condition in a well or other hole. The tool assembly may include a computing unit for directing operation of the tool assembly and may be sized to be operable in a hole having a diameter of 1 inch, and in some cases even smaller. In one aspect, the tool assembly is designed to significantly conserve power. Sensor readings may be taken at different schedules to conserve power when frequent readings are not required. Also, internal electronics of the tool assembly can be operated at a low voltage. In one aspect, the tool assembly is assemblable by simple rotatable engagement of the components, with electrical interconnections being made automatically by the rotatable engagement without keying of components. In another aspect, the tool assembly is networkable with other like tool assemblies and monitorable from a central location. In yet another embodiment, the tool assembly may include a tool bundle with a plurality of different sensor capabilities useful as a multi-parameter probe when tool diameter is not a big concern.

Claims

1. A system for monitoring at least one remotely located tool assembly comprising:

a communication network to which at least one remotely located tool assembly which is configured to monitor at least one condition is connectable, wherein said communications network provides for conduction of electrical signals to and from the at least one tool assembly; and

a centralized processing device connectable to the communications network, said centralized processing device comprising;

means to determine the communications network'"'"'s configuration through transmission of a general identification message over the network and processing of at least one return message from the at least one tool assembly connected to the communications network, wherein the return message includes identification and operational information for the at least one tool assembly;

means to selectively access each of the at least one tool assembly in communication with the centralized processing device; and

means to communicate with the at least one tool assembly so as to access, amend, and retrieve information stored in the at least one tool assembly.

2. The system of claim 1 wherein the centralized processing device further comprises a user interface upon which a plurality of interactive screen displays may be presented and through which system user information may be entered wherein the centralized processing device further processes this information and provides it to each of the at least one tool assembly.

3. The system of claim 1 wherein the communication network comprises at least one of:

a direct electrical connection wherein a electrically conductive line is employed between the central processing device and the at least one tool assembly;

a telephony network, wherein the central processing device and the at least one tool assembly are configured to establish a connection with and communicate over the telephony network; and

a plurality of radio transceivers in connection with the central processing device and the at least one tool which provide for the exchange of data signals via radio waves.

4. The system of claim 1 wherein the communications network further includes at least one connection box to which a plurality of the tool assemblies are connectable.

5. The system of claim 4 wherein the communications network further comprises at least one quad box which provides connection to the communications for at least four tool assemblies.

6. The system of claim 3 wherein the plurality of tool assemblies are located at a site remote from the centralized processing device and connection to the communications network is provided through use of a modem/controller device.

7. The system of claim 6 wherein the modem/controller device is a palm top computer.

8. The system of claim 1 wherein the centralized processing device comprises at least one of:

a personal computer and a palm top computer.

9. The system of claim 1 wherein the communications network provide for message based communications between the central processing device and the at least one tool assembly.

10. The system of claim 9 wherein the centralized processing device is further configured to selectively address each of the at least one tool assemblies by placement of a unique address header in a message generated for transmission over the communications network to the at least one tool assemblies.

11. The system of claim 1 wherein the central processing device is configured to perform at least one of:

detecting whether the at least one tool assembly is connected to the network;

presenting a first screen display which provides detail configuration for the at least one tool assembly connected to the communications network;

presenting a second screen display which provides for manual entry of parameter information for the at least one tool assembly, wherein the entered parameter information is provided to the at least one tool assembly over the communications network; and

presenting a third screen display for manual entry of testing information, wherein the entered test information may be provided to the at least one tool assembly over the communications network; and

extracting and compiling test information from the at least tool assembly.

12. The system of claim 1 wherein the at least one tool assembly is adapted for insertion into a well or other hole to direct monitoring of the at least one condition existing in the well or other hole.

13. The system of claim 6 wherein the modem/controller employed for communicating over the network includes the functionality to emulate at least one other system such that communications may be established with devices other than the central processing device.

14. A networked monitoring system comprising:

a centralized processing device configurable to connect to a communications network so as to transmit and/or receive messages over the communications network;

a least one configurable tool assembly electrically connectable to the communications network, wherein said at least one tool assembly is configured to receive and process the at least one message transmitted over the communications network from the centralized processing device and to perform at least one function in response to receipt of the at least one message which includes transmitting identification information to the centralized processing device; and

wherein the centralized processing device is further configured to determine the communications network'"'"'s configuration through receipt and processing of the identification information, the central processing device selectively communicates with the at least one configurable tool assembly over the communications network so as to perform at least one of;

activate and deactivate the at least one tool assembly, add, remove, and/or amend programming of the at least one tool assembly, and/or extract data from the at least one tool assembly.

15. The system of claim 14 wherein the centralized processing device comprises at least one of:

a personal computer and a palm top computer, wherein the centralized processing device is configured with at least one communications port so as to establish a connection over the communications network.

16. The system of claim 14 wherein the processing device comprise at least one of:

a communications processing module which provides for identification of tool assemblies which are connected to the communications network and processing of messages which are received and transmitted over the network;

a parameters processing module which provides for identification and amendment of parameters which the at least one tool assembly is employing in its operation; and

a test processing module which provides for identification and amendment of test procedures employed by the at least one tool assembly as well as extraction of data for tests performed by the at least one tool assembly.

17. The system of claim 16 further comprising a user interface upon which at least one screen display may be presented, where the at least one screen display is configured to provide for display and/or entry of information relating to the at least one tool assembly.

18. The system of claim 14 wherein the at least one tool assembly is adapted for insertion into a well or other hole to direct monitoring of at least one condition existing in the well or other hole.

19. The system of claim 14 wherein the at least one tool assembly is less than one inch in diameter.

20. The system of claim 14 wherein the at least one tool assembly is individually addressable over the communications network by use of a unique address header included in any of the messages transmitted over the communications network.

21. The system of claim 14 wherein the centralized processing device and the at least one tool assembly are configured to communicate over the communications network which comprises at least one of:

a direct electrical connection wherein a electrically conductive line is employed between the central processing device and the at least one tool assembly;

a telephony network, wherein the central processing device and the at least one tool assembly are configured to establish a connection with and communicate over the telephony network; and

a plurality of radio transceivers in connection with the central processing device and the at least one tool which provide for the exchange of data signals via radio waves.

22. The system of claim 21 wherein the at least one tool assembly is configured to communicate with the centralized processing device through a modem/controller.

23. The system of claim 22 wherein the modem/controller is a palm top computer.

24. An apparatus for communicating and/or monitoring at least one tool assembly device connected to a communications network, comprising:

a communications interface configurable to connect to the communications network and provide for transmission and receipt of message over the data network;

communications processing means for identifying the at least one tool assembly connected to the communications network through exchange of messages wherein a reply message from the at least one tool assembly includes identification information for the at least one tool assembly;

tool assembly processing means which is configured to communicate over the communications network with the at least one tool assembly so as control operations of the at least tool assembly; and

a user interface through which data relating to the operations of the at least one tool assembly may be viewed and/or manually entered.

25. The apparatus of claim 24 wherein the communications interface may be configured to provide a connection to at least one of:

a direct electrical connection wherein a electrically conductive line is employed between the central processing device and the at least one tool assembly;

a telephony network, wherein the central processing device and the at least one tool assembly are configured to establish a connection with and communicate over the telephony network; and

a plurality of radio transceivers in connection with the central processing device and the at least one tool which provide for the exchange of data signals via radio waves.

26. The apparatus of claim 24 wherein the communications processing means is further configured to selectively communicate with the at least one tool assembly through inclusion of a unique address header in selected messages transmitted over the communications network.

27. The apparatus of claim 24 wherein the tool assembly processing means further comprises at least one of:

a parameters processing means which provides for identification and amendment of parameters which the at least one tool assembly employs in its operation; and

a test processing means which provides for identification and amendment of test procedures employed by the at least one tool assembly as well as extraction of data for tests performed by the at least one tool assembly.

28. The apparatus of claim 27 wherein the test processing means is further configured to perform at least one of:

generate a test schedule and provide said test schedule to be transmitted to the at least one tool assembly over the communications network; and

communicate with the at least one tool assembly so as to extract data generated in performance of the test schedule.

29. The apparatus of claim 27 wherein the at least one tool assembly is adapted for insertion into a well or other hole to direct monitoring of at least one condition existing in the well or other hole.

30. The apparatus of claim 29 wherein the parameters and the at least one condition relate to pressure readings.

31. The apparatus of claim 24 wherein the user interface is configured to display a plurality of screen displays which provide for the viewing and/or manual entry of the data relating to the operations of the at least one tool assembly user commands and the display of test data extracted the at least one tool assembly.

32. The apparatus of claim 24 wherein the communications interface, communications processing means, tool assembly processing means, a user interface are configured on at least one of:

personal computer and a palm top computer.

33. A method of monitoring operations of at least one tool assembly over a communications network comprising the steps of:

establishing a connection over the communications network;

generating and transmitting a general identification message over the communications network to which the at least one tool assembly connected to the communications network will receive;

receiving any reply messages transmitted over the communications network from the at least one tool assembly and processing any configuration information for the at least one tool assembly included therein;

logging the at least one tool assembly in memory as being connected to the communications network;

transmitting at least one message specifically addressed to the at least one tool assembly over the communications network, wherein the message includes command information relating to the operation of the at least one tool assembly; and

receiving at least one operational reply message from the at least one tool assembly which includes information relating to performance of the at least one tool assembly.

34. The method of claim 33 further comprising the step of displaying configuration and/or performance information received from the at least one tool assembly on a user interface.

35. The method of claim 33 further comprising the step of periodically retransmitting the general identification message over the communications network if the reply message is not received within a predetermined period of time, wherein the retransmitted general message may include instructions to any of the at least one tool assemblies that have previously responded to the general identification not to reply to the retransmitted general identification message.

36. The method of claim 33 wherein command information comprises at least one of:

parameter information relating to identification and amendment of parameters which the at least one tool assembly is employing in its operation; and

test information which relates to identification and amendment of test procedures employed by the at least one tool assembly as well as extraction of data for tests performed by the at least one tool assembly.

37. The method of claim 36 further comprising the step of displaying the configuration, parameter, testing, and/or extracted test data on a screen display.

38. The method of claim 33 wherein the at least one tool assembly is adapted for insertion into a well or other hole to direct monitoring of at least one condition existing in the well or other hole.

39. The method of claim 33 wherein the at least one message may comprises firmware which the tool assembly may employ for upgrade and/or replacement purposes.