US 9,316,083 B2Granted

Adjustable testing tool and method of use

AssigneeSchlumberger Technology Corporation

InventorsRicardo Vasques, Gustavo Andreolli Ribeiro, Cosan Ayan, Nicolas Adur, Arne Richard Pedersen, Antonio Castilho

Life of this patent

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Abstract

Methods and systems for testing a subterranean formation penetrated by a wellbore are provided. A testing tool has a plurality of packers spaced apart along the axis of the tool, and at least a testing port. The testing tool is positioned into the wellbore and packers are extended into sealing engagement with the wellbore wall, sealing thereby an interval of the wellbore. In some embodiments, the wellbore interval sealed between two packers is adjusted downhole. In one embodiment, the location of the testing port is adjusted between two packers. The methods may be used to advantage for reducing the contamination of the formation fluid by fluids or debris in the wellbore.

Claims16

Dependent claims

An apparatus, comprising:

a downhole tool comprising:
two inflatable packer elements spaced longitudinally apart relative to a longitudinal axis of the downhole tool;
and
a first port operable to admit fluid into the downhole tool and disposed at a first longitudinal position between the two inflatable packer elements;
and
a snorkel assembly extending circumferentially around the downhole tool and comprising:
an annular groove fluidly connected to the first port;
a second port operable to admit fluid into the snorkel assembly and disposed at a second longitudinal position between the two inflatable packer elements, wherein the first and second longitudinal positions are spaced longitudinally apart relative to the longitudinal axis of the downhole tool, and wherein the annular groove and the second port are in fluid communication.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/030,529Filed 18 Feb 2011 · continuation
Priority: 18 Sep 2006
Published: US 2011/0139450 A116 Jun 2011
Granted: 19 Apr 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

E21B 33/1246
With inflatable sleeves: inflated by down-hole pumping means operated by a pipe string
E21B 49/081
Obtaining fluid samples or testing fluids, in boreholes or wells: with down-hole means for trapping a fluid sample
E21B 49/08
Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to…:…
E21B
Earth or rock drilling

Family

Application60/845,332Us provisional application · filed 18 Sep 2006
Application11/693,147Parent of this division · filed 29 Mar 2007
Application12/577,847Parent of this continuation · filed 13 Oct 2009
US 2011/0139450 A1Pre-grant publication · published 16 Jun 2011
US 7,913,557 B2Parent of this continuation
Application12/577,847Parent of this division
US 2008/0066535 A1Published application
US 2010/0024540 A1Published application
US 9,316,083 B2This patent

From the US filing history. Foreign family members aren’t listed.