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Tubing anchoring and movement reducing system

a tubing anchoring and movement reduction technology, applied in the field of petroleum well tools, can solve problems such as vibrations within the tubing string, and achieve the effect of reducing or stopping the movement of the tubing string

Inactive Publication Date: 2015-09-17
TAZCO HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is a device used in oil and gas wells to prevent the tubing string (which is used in pumping oil and gas) from moving. The device uses a ¼ turn tubing anchor catcher and a torque anchor section, which make direct contact with the inner surface of the well convers to reduce movement and vibrations caused by the pumping section. The device can catch and hold the tubing string in place if there is a failure in the string. This invention helps to keep the tubing string secure and stable during the pumping process.

Problems solved by technology

As the drive rod rotates, it may contact portions of the tubing string, which may generate vibrations within the tubing string.

Method used

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  • Tubing anchoring and movement reducing system
  • Tubing anchoring and movement reducing system
  • Tubing anchoring and movement reducing system

Examples

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Embodiment Construction

[0034]FIGS. 1 to 8 depict one example embodiment of a ¼ turn tubing anchor catcher 10 for use with an anchoring and movement reducing system 1000, also referred to herein as the system 1000. The phrase “movement reducing system” encompasses at least both concepts of decreasing and completely stopping movement within a well conduit 12 that is caused by an artificial lift pumping system within the system. The ¼ turn tubing anchor catcher 10 may be inserted within the well conduit 12 (see FIGS. 13 and 14), such as a wellbore casing. FIGS. 1 and 2 depict the ¼ turn tubing anchor catcher 10 in an unset, or “run-in”, orientation in which it can be run inside the well conduit 12 on a tubing string. Safety subs 14A, B may be attached to a mandrel 20 of the ¼ turn tubing anchor catcher 10 having attachment means, such as an inner threaded lower end 22 and an outer threaded upper end 24. In this embodiment, the ¼ turn tubing anchor catcher 10 may be run down the well conduit 12 on the tubing ...

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Abstract

The present invention provides a ¼ turn tubing anchor catcher for use in tubing strings within petroleum wells. The tubing string may also include a pump for increasing the delivery of petroleum through the well bore. The ¼ turn tubing anchor catcher can be set by a quarter turn. The ¼ turn tubing anchor catcher may act as an anchor that prevents rotation caused by the pump. The ¼ turn tubing anchor may also act as a catcher if the structural integrity of one or more portions of the tubing string fails. The present invention also provides an anchoring and movement reducing system that comprises a ¼ turn tubing anchor catcher, a pump and an torque anchor section. The system anchors the tubing string against rotation caused by the pump. The system may also act as a catcher if the structural integrity of one or more portions of the tubing string fails.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority from continuation-in-part of U.S. patent application Ser. No. 14 / 311,322 filed Jun. 22, 2014 and entitled Quarter Turn Torque Anchor and Catcher, which is itself a continuation-in-part of U.S. patent application Ser. No. 13 / 716,075 filed on Dec. 14, 2012 and entitled Quarter Turn Tension Torque Anchor. The entire disclosures of these priority documents and all related applications or patents are incorporated herein by reference.FIELD OF THE INVENTION[0002]The present invention relates to tools for petroleum wells generally, including wells accessing heavy crude. In particular, the present invention relates to a ¼ turn tubing anchor catcher and its use in a system for anchoring tubing and reducing or eliminating movement, which may be caused by a downhole pump, within in a well conduit.BACKGROUND OF THE INVENTION[0003]A tubing string is used within a petroleum well to position downhole tools proximal to one...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): E21B23/01E21B17/042
CPCE21B17/042E21B23/01E21B17/021E21B43/10E21B40/001
Inventor MOORE, EDWARD L.
Owner TAZCO HLDG
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