×

Downhole sampling tool and method for using same

  • US 7,347,262 B2
  • Filed: 06/18/2004
  • Issued: 03/25/2008
  • Est. Priority Date: 06/18/2004
  • Status: Expired due to Fees
First Claim
Patent Images

1. A downhole sampling tool positionable in a wellbore penetrating a subterranean formation, the subterranean formation having a formation fluid therein, the wellbore having a contaminated fluid therein extending into an invaded zone about the wellbore, comprising:

  • a housing;

    a shaft extendable from the housing, the shaft positionable in a perforation in a sidewall of the wellbore;

    a plurality of flowlines extending through the shaft and into the housing, the flowlines adapted to receive downhole fluids through the perforation;

    at least one fluid restrictor positioned about the perforation, the at least one fluid restrictor adapted to isolate at least a portion of the perforation whereby contaminated fluid is prevented from entering an isolated portion of the perforation.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×