×

Methods and apparatus for optically measuring fluid compressibility downhole

  • US 6,474,152 B1
  • Filed: 11/02/2000
  • Issued: 11/05/2002
  • Est. Priority Date: 11/02/2000
  • Status: Expired due to Term
First Claim
Patent Images

1. A borehole apparatus for measuring downhole the compressibility of hydrocarbon fluid in a formation, comprising:

  • a) a testing region;

    b) a conduit for directing the formation fluid into said testing region;

    c) means for measuring pressure on the fluid in said testing region;

    d) means for changing pressure on the fluid in said testing region;

    e) a light source which emits at least near infrared rays into said testing region;

    f) a spectral detector optically coupled to said testing region; and

    g) a processing means coupled to said spectral detector and to said means for measuring pressure, said processing means for determining said compressibility of said hydrocarbon fluid as a function of a change in pressure determined from at least two measurements made by said means for measuring pressure and as a function of measurements made by said spectral detector.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×