Test apparatus for direct measurement of expansion and...

Measuring and testing – Volumetric content measuring

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C073S429000, C073S865600, C073S866000

Reexamination Certificate

active

10575408

ABSTRACT:
A test apparatus for the measurement of expansion and/or shrinkage of a cement test sample during curing under pressure and temperature conditions that simulate downhole oil well conditions isolates the test sample from a first fixed volume of incompressible pressurized liquid using a flexible barrier that forms a wall of a first chamber in a pressure vessel assembly. The first chamber is sealed by a movable piston. A second pressurizing medium is contained in a second chamber on the opposite side of the piston, and is in fluid communication with a pump, whereby the piston is pressure-balanced between the first and the second medium. The piston moves in a bore of the vessel assembly in response to changes in the volume of the test sample during curing and the amount of linear movement of the piston is detected by a sensor system that measures, correlates and transmits any change in the position of the piston as a change in the sample volume for display and recording.

REFERENCES:
patent: 2831340 (1958-04-01), Crandall et al.
patent: 2978781 (1961-04-01), Shuman
patent: 3239880 (1966-03-01), Oxel
patent: 3574281 (1971-04-01), Casey et al.
patent: 3779085 (1973-12-01), Rice
patent: 3898836 (1975-08-01), Clusener
patent: 4122704 (1978-10-01), Lutenegger et al.
patent: 4259868 (1981-04-01), Rao et al.
patent: 4377087 (1983-03-01), Rodot
patent: 4408489 (1983-10-01), Spangle
patent: 4491017 (1985-01-01), Iyer
patent: 4976549 (1990-12-01), Khan
patent: 5009512 (1991-04-01), Lessi et al.
patent: 5024109 (1991-06-01), Romero et al.
patent: 5121987 (1992-06-01), Berg
patent: 5465609 (1995-11-01), Romieu et al.
patent: 5487307 (1996-01-01), Landgren et al.
patent: 5571951 (1996-11-01), Jamth
patent: 5741971 (1998-04-01), Lacy
patent: 6053245 (2000-04-01), Haberman
patent: 6070465 (2000-06-01), Maki, Jr.
patent: 6527438 (2003-03-01), Zollinger et al.
patent: 6817238 (2004-11-01), Go Boncan et al.
patent: 2005/0039537 (2005-02-01), Jensen et al.
Chenevert, et al., Chemical Shrinkage Properties of Oilfield Cements Drilling Engineering, Mar. 1991, pp. 37-43.
Gofrani et al, “CaO-and/or MgO-Swelling Cements: A Key for Providing a Better Annular Sealing?,” SPE/IADC Drilling Conference, Feb. 1993, pp. 199-214.
Beirute et al., “Expansive and Shrinkage Characteristics of Cements Under Actual Well Conditions”, Journal of Petroleum Technology, Aug. 1973, pp. 905-909.
Beirute, “True Expansive Characteristics of Commercially Available Expansive Cement Under Actual Well Conditions”, SPE Annual Technical Conference and Exhibition, Oct. 1976, pp. 1-8.
International Search Report, Oct. 13, 2005.
International Preliminary report on Patentability; May 4, 2006.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Test apparatus for direct measurement of expansion and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Test apparatus for direct measurement of expansion and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Test apparatus for direct measurement of expansion and... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3748989

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.