Cable deployed electrical submersible pump jarring tool and method
AssigneeAlkhorayef Petroleum Company
InventorSerko Sarian
Life of this patent
Estimating the term…
Abstract
Improved installation speed and reliability for electrical submersible pumps may be realized through the system and methods disclosed herein. An adjustable jarring device is used to break a release pin, the force of the jarring device can be adjusted based on its height above the pin. In another aspect, the jarring device comprises a secondary weight configured to provide a second at break the shear pin of a tool without requiring resetting it. Another aspect is a tool catcher device that allows for catching and holding the jarring device and dropping it, as well as retrieval of the tool in the event the cable is disconnected.
Claims20
A jarring device, comprising:
- an upper weight section, the upper weight section comprising an upper opening and a lower opening centered around an axis, and inner walls defining a housing between the upper and lower openings, and the upper weight section being configured to surround a cable extending through the upper opening;
- a jar section, the jar section comprising an upper hole opening and configured to retain a terminal end of a cable in an interior hollow;
- and
- the jar section configured to retain a sleeve that surrounds the terminal end of the cable and that has a larger circumference than the upper hole opening;
- the upper weight section is configured to slide in relation to the cable and in relation to the jar section.
A jarring device, comprising:
- an upper weight section, the upper weight section comprising an upper opening and a lower opening centered around an axis, and inner walls defining a housing between the upper and lower openings, and the upper weight section being configured to surround a cable extending through the upper opening;
- and
- a jar section, the jar section comprising an upper hole opening and configured to retain a terminal end of a cable in an interior hollow;
- wherein the jar section includes a secondary weight in the interior hollow coupled to the cable via a secondary shear pin, the secondary shear pin configured to break upon the cable being pulled up with sufficient force.
A method of using a jarring device, the method comprising:
- installing a jarring device on a cable above the wellbore, the jarring device comprising an upper weight section and a jar section;
- suspending the upper weight section above the top of the jar section;
- dropping the upper weight section into a top surface of the jar section with an impact force;
- wherein the impact force resulting from the dropping of the upper weight section is transferred to a primary shear pin in a tool below the jar section.
Dependencies are inferred from the claim text.