Leak containment system
US-2024125196-A1 · Apr 18, 2024 · US
One trip tubular cleaning and drilling additional open hole
US9109416B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9109416-B2 |
| Application number | US-201213428285-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 23, 2012 |
| Priority date | Mar 23, 2012 |
| Publication date | Aug 18, 2015 |
| Grant date | Aug 18, 2015 |
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Abstract
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A one trip method for cleaning an existing string while performing testing on the string allows in the same trip the drilling of additional wellbore. The cleanup equipment is retracted after the testing is completed so that it will not impede the advancement of the drill bit at the lower end of the string. The cleanup tools are typically extend for run in through the string and they can be collapsed by a technique such as dropping a ball to shift a sleeve to disable the piston assembly that holds the cleanup tools extended and allows them to be retracted using a return spring or other source of potential energy.
First claim
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I claim: 1. A subterranean borehole drilling method, comprising: providing a first string in an already drilled borehole having an initial formation penetration from a surface location; running an assembly on a second string through said first string where said assembly comprises at least one retractable cleanup device and a bit at the lower end of said second string; cleaning up said first string with said cleanup device; advancing said bit and said cleanup device beyond sa…
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Frequently asked questions
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- What does patent US9109416B2 cover?
- A one trip method for cleaning an existing string while performing testing on the string allows in the same trip the drilling of additional wellbore. The cleanup equipment is retracted after the testing is completed so that it will not impede the advancement of the drill bit at the lower end of the string. The cleanup tools are typically extend for run in through the string and they can be coll…
- Who is the assignee on this patent?
- Xu Yang, Baker Hughes Inc
- What technology area does this patent fall under?
- Primary CPC classification E21B37/00. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Aug 18 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).