Method and system for locating self-setting dissolvable plugs within a wellbore
AssigneeHalliburton Energy Services, Inc.
InventorsMichael Linley Fripp, Andrew Penno
Life of this patent
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Abstract
Method and system for deploying a frac package in a wellbore includes providing a location module for the frac package that can determine a position of the frac package in the wellbore. The location module operates to receive beacon signals from beacons located on the wellbore string and to calculate a velocity of the frac package based on the beacon signals. The location module further operates to calculate a location of the frac package based a time since a latest beacon signal and the velocity of the frac package. In some implementations, the beacons includes at least one beacon that transmits or emits a signal and at least one beacon that does not transmit or emit a signal.
Claims20
A method of deploying a well tool in
- a wellbore, comprising:
- conveying the well tool through a wellbore string, the well tool comprising an onboard location module and a dissolvable plug, wherein the onboard location module is adjacent to the dissolvable plug;
- receiving beacon signals at the well tool from beacons located on the wellbore string, the beacons including circumferential arrays of permanent magnets;
- calculating a velocity of the well tool at the onboard location module, wherein the velocity is calculated with an initial velocity, acceleration, and elapsed time between the beacon signals;
- and
- calculating a location of the well tool in the wellbore string at the onboard location module based on a time since a latest beacon signal and the velocity of the well tool.
A system for deploying a frac package in a wellbore,
- comprising:
- a wellbore string disposed within the wellbore, the wellbore string including detectable markers along the wellbore string, the detectable markers include circumferential arrays of permanent magnets;
- a frac package deployable through the wellbore string, the frac package including, a frac plug and a setting tool operably coupled to the frac plug;
- and
- a location module housed within the setting tool, the location module configured to detect one or more of the markers in the wellbore string and determine a velocity of the frac package based on the markers and determine a position of the frac package in the wellbore string based on the velocity, wherein the velocity is determined via an initial velocity, acceleration, and elapsed time between marker signals;
- wherein the location module includes an actuator operable to instruct the setting tool to move the frac plug from a first radially inward position to a second radially outward position to engage the wellbore string in response to the position of the frac package matching a predefined location within the wellbore, wherein the location module is adjacent to the frac plug.
A location module for deploying a well tool
- in a wellbore, comprising:
- a sensor configured to detect beacons that include circumferential arrays of permanent magnets;
- a processor communicatively coupled to the sensor;
- and
- a memory unit communicatively coupled to the processor, the memory unit storing processor-executable instructions that, when executed by the processor, causes the location module to:
- receive beacon signals from the beacons located on the wellbore string via the sensor;
- calculate a velocity of the well tool, wherein the velocity is calculated with an initial velocity, acceleration, and elapsed time between the beacon signals;
- and
- calculate a location of the well tool in the wellbore string based on a time since the latest beacon signal and the velocity of the well tool, wherein the location module is adjacent to a dissolvable plug.
Dependencies are inferred from the claim text.