Method for removing a sealing plug from a well
First Claim
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1. A method for sealing a casing or a wellbore, comprising:
- providing an explosive on a sealing plug;
providing an initiator on the plug to receive the wireless signal and to initiate exploding of the explosive in response to receiving a wireless signal;
lowering the plug into the casing or the wellbore;
expanding the plug into engagement with the casing or wellbore to provide a seal;
lowering an actuator into the wellbore; and
transmitting a wireless signal from the actuator to the initiator to explode the explosive and release the engagement;
wherein the explosive comprises a cord at least partially received within a recess of a liner of the plug.
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Abstract
A method for removing a sealing plug from a casing or a wellbore according to which a sealing plug is adapted to expand into engagement with the casing or the wellbore. A wireless signal is sent to the plug to cause the plug to lose its structural integrity and fall to the bottom of the wellbore.
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Citations
25 Claims
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1. A method for sealing a casing or a wellbore, comprising:
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providing an explosive on a sealing plug; providing an initiator on the plug to receive the wireless signal and to initiate exploding of the explosive in response to receiving a wireless signal; lowering the plug into the casing or the wellbore; expanding the plug into engagement with the casing or wellbore to provide a seal; lowering an actuator into the wellbore; and transmitting a wireless signal from the actuator to the initiator to explode the explosive and release the engagement; wherein the explosive comprises a cord at least partially received within a recess of a liner of the plug. - View Dependent Claims (2, 3)
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4. A method for sealing a casing or a wellbore, comprising:
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providing a sealing plug having at least one consumable component; lowering the plug into the casing or the wellbore; expanding the plug into engagement with the casing or wellbore to provide a seal; lowering an actuator into the wellbore; and transmitting a wireless signal from the actuator to the plug to initiate ignition; and igniting thermite in response to transmitting the wireless signal, thereby producing heat and oxygen, wherein the heat and oxygen at least partially consume the at least one consumable component of the plug to cause the plug to release the engagement. - View Dependent Claims (5, 6, 7, 8, 9)
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10. A method for sealing a casing or a wellbore, comprising:
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providing a sealing plug having an explosive on the sealing plug, the explosive comprising a cord wrapped around a liner of the plug and the cord comprising an increased density of windings about the liner adjacent a sealing element of the plug; lowering the sealing plug into the casing or the wellbore; expanding the plug into engagement with the casing or wellbore to provide a seal; lowering an actuator into the wellbore; transmitting a wireless signal from the actuator to the plug; and causing at least one component of the plug to loose its structural integrity in response to transmitting the wireless signal to cause the plug to release the engagement. - View Dependent Claims (11, 12)
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13. A method for sealing a casing or a wellbore, comprising:
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providing an explosive on a sealing plug; providing an initiator on the plug; lowering the plug into the casing or the wellbore; expanding the plug into engagement with the casing or wellbore to provide a seal; lowering an actuator into the wellbore and transmitting a wireless signal from the actuator to the initiator; and receiving the wireless signal with the initiator to initiate the exploding of the explosive to release the engagement in response to receiving the wireless signal. - View Dependent Claims (14, 15)
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16. A method for sealing a casing or a wellbore, comprising:
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providing a sealing plug having at least one consumable component; lowering the plug into the casing or the wellbore; expanding the plug into engagement with the casing or wellbore to provide a seal; lowering an actuator into the wellbore; transmitting a wireless signal from the actuator to the plug; and igniting a material in response to transmitting the wireless signal, thereby causing the material to producing heat and oxygen, wherein the heat and oxygen consumes the at least one consumable component of the plug to cause the plug to release the engagement. - View Dependent Claims (17)
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18. A method for sealing a casing or a wellbore, comprising:
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lowering a sealing plug into the casing or the wellbore; expanding the plug into engagement with the casing or wellbore to provide a seal; lowering an actuator into the wellbore; transmitting a wireless signal to the plug from the actuator; and causing at least one component of the plug to loose its structural integrity in response to transmitting the wireless signal to cause the plug to release the engagement. - View Dependent Claims (23, 24, 25)
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- 19. The method of 18, wherein a material is ignited in response to the transmission of the wireless signal and produces heat and oxygen, and at least one component of the plug is consumed by the heat and oxygen to cause the plug to lose its structural integrity.
Specification