System And Method For Controlled Pumping In A Downhole Sampling Tool
US-2015361791-A1 · Dec 17, 2015 · US
Optimization of sample cleanup during formation testing
US9068438B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9068438-B2 |
| Application number | US-201213358268-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 25, 2012 |
| Priority date | Jan 28, 2011 |
| Publication date | Jun 30, 2015 |
| Grant date | Jun 30, 2015 |
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Abstract
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Disclosed is a formation testing tool for extracting formation fluid from an earth formation penetrated by a borehole having a drilling fluid. The tool includes: a sample flow element configured to extract formation fluid from the formation in a sample zone; a sample zone seal forming a perimeter defining the sample zone; a contamination removal flow element configured to extract formation fluid contaminated with the drilling fluid from a contamination removal zone in the formation; a contamination removal zone seal forming a perimeter defining the contamination removal zone, which surrounds and excludes the sample zone; and a controller configured to control a sample flow rate in the sample flow element and a contamination removal flow rate in the contamination flow removal element in order to decrease an amount of time required to acquire a sample of the formation fluid having an acceptable amount of contamination.
First claim
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What is claimed is: 1. A formation testing tool for extracting formation fluid from an earth formation penetrated by a borehole having a drilling fluid, the tool comprising: a sample flow element configured to extract formation fluid from the formation in a sample zone; a sample zone seal forming a perimeter defining the sample zone; a contamination removal flow element configured to extract formation fluid contaminated with the drilling fluid from a contamination removal zone…
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Fixed Constructions · mapped topic
Fixed Constructions · mapped topic
- E21B49/10Primary
Fixed Constructions · mapped topic
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- What does patent US9068438B2 cover?
- Disclosed is a formation testing tool for extracting formation fluid from an earth formation penetrated by a borehole having a drilling fluid. The tool includes: a sample flow element configured to extract formation fluid from the formation in a sample zone; a sample zone seal forming a perimeter defining the sample zone; a contamination removal flow element configured to extract formation flui…
- Who is the assignee on this patent?
- Stibbe Holger, Mceacharn Russell, Cernosek James T, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification E21B49/10. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Jun 30 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).