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Method and apparatus for sampling high viscosity formation fluids

  • US 7,878,243 B2
  • Filed: 06/14/2007
  • Issued: 02/01/2011
  • Est. Priority Date: 09/18/2006
  • Status: Active Grant
First Claim
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1. A method of obtaining a fluid sample from an underground formation traversed by a borehole, comprising:

  • lowering a tool into the borehole, the tool including at least one perforation mechanism disposed through a sidewall of the tool, and at least one port fluidly connected to a sample container;

    creating a first hole through a borehole wall into the formation with the at least one perforation mechanism;

    increasing a mobility of formation fluid, wherein the formation fluid is disposed between the borehole wall and the first hole, wherein increasing the mobility includes engaging at least one of a packer and a pad against the borehole wall and activating a heating element disposed in the at least one of the packer and the pad; and

    obtaining a sample of fluid from the formation, wherein at least one of increasing and obtaining is performed utilizing the first hole.

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