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Debris catcher

Inactive Publication Date: 2016-11-17
BAKER HUGHES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent is about a device and a method for catching debris during drilling in a wellbore tubular. The device is made of a degradable material and is attached to the wellbore tubular. It has a filter that collects debris from the drilling fluid. The method involves placing the device in the wellbore tubular and filtering the drilling fluid to remove debris. This helps to keep the wellbore clean and reduces the risk of damage during drilling.

Problems solved by technology

Some of these operations leave materials in the wellbore.

Method used

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Embodiment Construction

[0014]The present disclosure relates to devices and methods for filtering downhole tool materials using a debris catcher. The debris catcher is installed into the production string below the wellhead or as part of the wellhead assembly. The debris catcher catches particles and pieces in the subterranean fluid, for example, degradable downhole materials that flow back during production. The debris catcher prevents the downhole materials from damaging any wellbore components, such as valves. Also, the debris catcher degrades and can be removed from the flowbore. Illustrative debris catchers are described below.

[0015]FIG. 1 shows one non-limiting embodiment of the debris catcher 9 for filtering downhole materials 80 entrained in downhole fluids flowing towards the surface equipment. The debris catcher 9 may be run in conjunction with other bottom hole assemblies inside a wellbore tubular 10 such as a casing, liner, tubing or other suitable tubular. A conveyance device (not shown) is us...

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PUM

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Abstract

A debris catcher can include an anchor connected to the wellbore tubular and a filter fixed to the anchor. The filter is formed at least partially of a degradable material and positioned in a bore of the wellbore tubular. A subterranean fluid flowing through the wellbore tubular is filtered using the debris catcher. It is emphasized that this abstract is provided to comply with the rules requiring an abstract, which will allow a searcher or other reader to quickly ascertain the general subject matter of the technical disclosure.

Description

BACKGROUND OF THE DISCLOSURE[0001]1. Field of the Disclosure[0002]This disclosure relates generally to oilfield downhole tools and more particularly to methods and devices for filtering subterranean fluids using a debris catcher.[0003]2. Description of the Related Art[0004]Wellbore operations such as drilling, wireline logging, completions, perforations and interventions are performed to produce oil and gas from underground reservoirs. Wellbores can extend thousands of feet underground to the underground reservoirs. Some of these operations leave materials in the wellbore. These downhole materials flow back to the surface and require filtering. In some aspects, the present disclosure is directed to methods and devices for filtering a well using a debris catcher that is degradable.SUMMARY OF THE DISCLOSURE[0005]In one aspect, the present disclosure provides a debris catcher for performing a downhole operation in a wellbore tubular. The debris catcher may include an anchor connected t...

Claims

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Application Information

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IPC IPC(8): E21B27/00
CPCE21B27/005
Inventor HARPER, JASON M.SANCHEZ, JAMES S.KING, JAMES G.O'MALLEY, EDWARD
Owner BAKER HUGHES INC