Dual piston, single phase sampling mechanism and procedure

Details Dual piston, single phase sampling mechanism and procedure Dual piston, single phase sampling mechanism and procedure

2007-07-24

2007-07-24

Neuder, William P. (Department: 3672)

Wells

Processes

Sampling well fluid

C166S100000

Reexamination Certificate

active

10242112

ABSTRACT:
A method and apparatus for maintaining the single phase integrity of a deep well formation sample that is removed to the surface comprises a vacuum jacket insulated single working cylinder divided by two free pistons into three variable volume chambers. The intermediate chamber is pre-charged with a fixed quantity of high pressure gas. Wellbore fluid freely admitted to one end chamber bears against one free piston to further compress the gas. The formation sample is pumped into the other end chamber to first, displace the wellbore fluid from the first end chamber and, sequentially, to further compress the gas to preserve the sample phase state upon removal to the surface.

REFERENCES:
patent: 3859850 (1975-01-01), Whitten et al.
patent: 4766955 (1988-08-01), Petermann
patent: 4936139 (1990-06-01), Zimmerman et al.
patent: 4940088 (1990-07-01), Goldschild
patent: 5009100 (1991-04-01), Gruber et al.
patent: 5058674 (1991-10-01), Schultz et al.
patent: 5337822 (1994-08-01), Massie et al.
patent: 5361839 (1994-11-01), Griffith et al.
patent: 5377755 (1995-01-01), Michaels et al.
patent: 5549162 (1996-08-01), Moody et al.
patent: 5662166 (1997-09-01), Shammai
patent: 6182753 (2001-02-01), Schultz
patent: 6467544 (2002-10-01), Brown et al.
patent: 6702017 (2004-03-01), Corrigan et al.
patent: 2002/0060067 (2002-05-01), Bolze et al.
patent: 2147027 (1995-10-01), None
patent: 2299835 (2000-09-01), None
patent: 0 092 975 (1983-11-01), None
patent: 2012722 (1979-08-01), None
patent: 2022554 (1979-12-01), None
patent: 2 322 846 (1998-09-01), None
patent: 2322846 (1998-09-01), None
patent: 2348222 (2000-09-01), None
patent: WO 96/12088 (1996-04-01), None
patent: WO 01/63093 (2001-08-01), None

Affiliated with

Also associated with

Rating

Dual piston, single phase sampling mechanism and procedure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dual piston, single phase sampling mechanism and procedure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual piston, single phase sampling mechanism and procedure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3773755