Back to results
US 12,215,559 B2Granted
Thermite method of abandoning a well
AssigneePSP-IP Limited
InventorPhilip Head
Life of this patent
Estimating the term…
Abstract
A well cutting tool, comprising a housing including a chamber, the housing having at least one nozzle, the chamber being loaded with thermite, and a gas-generating additive an ignitor such that when the ignitor is actuated to ignite the thermite, the gas-generating additive is caused to create an increase in pressure which discharges energised molten thermite from the chamber and out of the housing through the at least one nozzle.
Claims17
A well cutting tool, comprising;
- a housing including a chamber;
- the housing having at least one nozzle;
- the chamber being loaded with thermite, and a gas-generating additive;
- and
- an ignitor;
- such that when the ignitor is actuated to ignite the thermite, the gas-generating additive is caused to create an increase in pressure which discharges energised molten thermite from the chamber and out of the housing through the at least one nozzle, wherein there is provided a volume of liquid in a hermetically sealed container inside the thermite chamber, such that when the thermite is heated, it converts the liquid to a highly energised state which results in a highly energised plasma jet which discharges with the energised molten thermite.
3 more elements
A well cutting tool, comprising;
- a housing including a chamber;
- the housing having at least two nozzles;
- the chamber being loaded with thermite, and a gas-generating additive;
- and
- an ignitor;
- such that when the ignitor is actuated to ignite the thermite, the gas-generating additive is caused to create an increase in pressure which discharges energised molten thermite from the chamber and out of the housing through the nozzles;
- wherein the nozzles separate to form a shape to focus a discharge jet in a thin controlled 360 degree dispersion and inclined at an angle 45 degrees to an axis of associated tubing in which the housing is adapted to be located.
4 more elements
Dependencies are inferred from the claim text.