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Apparatus for measurements related to fluid flow in a borehole

  • US 5,052,220 A
  • Filed: 10/17/1989
  • Issued: 10/01/1991
  • Est. Priority Date: 10/17/1989
  • Status: Expired due to Term
First Claim
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1. A logging tool for carrying our measurements in a well related to the fluid therein, comprising:

  • a housing, including a measuring pipe provided with measuring means;

    a packer means designed to derive the whole fluid flow into said measuring pipe; and

    means for increasing, through the fluid flow action, the pressure of the fluid located substantially upstream of the packer means, wherein said packer means comprises funnel means including a wide end and a narrow end, and wherein the means for increasing pressure includes obstacle means disposed in the fluid flow path, at, or downstream of, the narrow end of said packer means.

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