Interactive and/or secure activation of a tool

• US 9,464,508 B2
• Filed: 03/10/2009
• Issued: 10/11/2016
• Est. Priority Date: 10/27/1998
• Status: Expired due to Term

• Current Assignee: Schlumberger Technology Corporation (SLB)
• Original Assignee: Schlumberger Technology Corporation (SLB)
• Inventors: Lerche, Nolan C., Brooks, James E., Farrant, Simon L., Rogers, Edward H.
• Primary Examiner(s): Singh, Sunil
• Application Number:
  US12/401,296
• Publication Number:
  US 20090168606A1
• Time in Patent Office: 2,772 Days
• Field of Search: 166/55.1
• US Class Current: 1/1
• CPC Class Codes: E21B 41/00 Equipment or details not covered by groups E21B15/00 - E21B40/00
• CPC Class Codes: E21B 41/0021 Safety devices, e.g. for preventing small objects from falling into the borehole
• CPC Class Codes: E21B 43/1185 Ignition systems
• CPC Class Codes: E21B 43/11857 firing indication systems
• CPC Class Codes: E21B 43/119 Details, e.g. for locating perforating place or direction
• CPC Class Codes: E21B 47/12 Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
• CPC Class Codes: F42D 1/05 Electric circuits for blasting

Abstract

A tool activation system and method includes receiving an authorization code of a user to verify access rights of a user to activate the tool. In one example, the authorization code is receive from a smart card. The environment around the tool, which can be in a wellbore, for example, is checked. In response to the authorization code and the checking of the environment, activation of the tool is enabled.

Claims

1. A system for activating a well tool, wherein the well tool comprises a perforating gun, comprising:

a controller having an interface to communicate with the well tool,

the controller further having a security input unit configured to receive an authorization code,

the controller configured to verify the authorization code; and

the interface configured to receive data pertaining to the well tool and an environment of the well tool, the data comprising pressure and temperature components,

the controller configured to, in response to a user request to activate the well tool;

verify the authorization code, wherein the verification comprises a verification of an access level of having authority to activate the well tool;

determine if data pertaining to the environment of the well tool indicates it is safe to activate the well tool; and

send a command including a unique code from an earth surface location to a downhole location to selectively activate and fire the well tool in response to the received data pertaining to the environment of the well tool indicating that it is safe to activate the well tool;

or

selectively disable activation of the well tool in response to the received data indicating that it is not safe to activate the well tool.

2. The system of claim 1, further comprising a communications interface configured to wirelessly communicate with a remote site.

3. The system of claim 2, wherein the communications interface is configured to communicate with the remote site using radio frequency signaling.

4. The system of claim 1, wherein the data pertaining to the environment comprises a depth of the well tool at the downhole location.

5. The system of claim 1, wherein the command is an encrypted command that is decryptable by the well tool.

6. The system of claim 1, wherein the authorization code includes information from a smart card and a personal identification code from a user.

7. The system of claim 1 further comprising the controller configured to verify the user to a lower access level, wherein the controller allows the user with the lower access level to perform at least one of:

determine the configuration of the well tool; and

perform a test of the well tool without activating the tool.

8. A system for activating a well tool, wherein the well tool comprises a perforating gun, comprising:

a controller having an interface to communicate with the well tool,

the controller further having a security input unit configured to receive an authorization code,

the controller configured to verify the authorization code to an access level; and

the interface configured to receive data pertaining to an environment of the well tool, wherein the data comprises an indication of the presence or absence of liquid or gas,

wherein the security input unit comprises a smart card reader configured to receive the authorization code stored on a smart card, and

wherein the controller is configured to further;

enable activation and firing of the well tool in response to verifying the authorization code received by the smart card reader is to an activation access level and determining that the received data satisfies one or more predetermined criteria indicating that it is safe to activate the well tool, wherein the activation is enabled by a unique code issued by the controller; and

disable activation of the well tool in response to the received data not satisfying the one or more predetermined criteria.

9. The system of claim 8, wherein the security input unit is further configured to receive a password from a user.

10. The system of claim 8, wherein the controller is configured to send an encrypted command that is decryptable by the well tool.

11. The system of claim 8, wherein the controller is configured to enable at least one of:

data collection from the well tool or well tool environment; and

testing of the well tool,

in response to verifying the authorization code received by the smart card reader is to an access level lower than the activation access level.