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Wellbore fluid sampling apparatus

  • US 4,871,019 A
  • Filed: 09/07/1988
  • Issued: 10/03/1989
  • Est. Priority Date: 09/07/1988
  • Status: Expired due to Fees
First Claim
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1. A wellbore fluid sampling apparatus comprising:

  • an elongated barrel member including a passage extending therein and defining a fluid sample chamber;

    spaced apart valve closure members supported on said barrel member and operable, respectively, to be moved from open positions permitting flow of fluid into and through said chamber to closed positions to trap a sample of fluid in said chamber; and

    means for moving said closure members between open and closed positions to trap a sample of wellbore fluid in said chamber comprising an actuator member operable connected to said closure members, means for urging said actuator member in a direction to move said closure members from an open position to a closed position, means for retaining said actuator member in a position corresponding to an open position of said closure members, respectively, a member engaged with said means for retaining and movable at will to effect operation of said actuator member and means interconnecting said actuator member and said closure members, respectively, and operable to move said closure members to the closed position in response to said operation of said actuator member.

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