Measuring and testing – Volume or rate of flow – Using differential pressure
Patent
1990-04-27
1992-12-29
Williams, Hezron E.
Measuring and testing
Volume or rate of flow
Using differential pressure
7386142, 7386171, E21B 4710
Patent
active
051741610
ABSTRACT:
A method for more accurately measuring small changes in flowrate, and measuring low flowrates, of a well fluid in a pipe, adapted to be disposed in a borehole, includes inserting a choke in a constricted section of the pipe and placing a differential pressure gauge across the constricted section so as to measure the pressure of the fluid in the constricted section. The presence of the centerbody in the constricted section of the pipe decreases the pressure of the fluid in an annulus region around the choke and converts an otherwise small well fluid pressure change in the constricted section into a large pressure change in the annulus region, the large pressure change being easily measurable by the differential pressure gauge.
REFERENCES:
patent: 2042933 (1936-06-01), Forward
patent: 2767580 (1956-10-01), Bevins
patent: 3060737 (1962-10-01), Arragon
patent: 3455157 (1969-07-01), Lahaye
patent: 3800870 (1974-04-01), Pitts, Jr.
patent: 3909603 (1975-09-01), Nicolas
patent: 3930742 (1976-01-01), Boyce
patent: 4127332 (1978-11-01), Thiruvengadam et al.
patent: 4168624 (1979-09-01), Pichon
patent: 4231262 (1980-11-01), Boll
patent: 4312234 (1982-01-01), Rhodes et al.
patent: 4335965 (1982-06-01), Faverty
patent: 4416610 (1983-11-01), Gallagher
patent: 4430251 (1984-02-01), Patterson
patent: 4441361 (1984-04-01), Carlson
patent: 4450715 (1984-05-01), Sumal
patent: 4528847 (1985-07-01), Halmi
patent: 4576043 (1986-03-01), Nguyen
patent: 4604902 (1986-08-01), Sabin
patent: 4641535 (1987-02-01), Malguarnera
patent: 4644800 (1987-02-01), Kozlak
patent: 4651572 (1987-03-01), Albertz
patent: 4757709 (1988-07-01), Czernichow
patent: 4856334 (1989-08-01), Hunt
patent: 4928764 (1990-05-01), Roessler
Hunt Andrew
Veneruso Anthony F.
Bouchard John H.
Dombroske George
Garrana Henry N.
Schlumberger Technology Corporation
Williams Hezron E.
LandOfFree
Wireline and coiled tubing retrievable choke for downhole flow m does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wireline and coiled tubing retrievable choke for downhole flow m, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wireline and coiled tubing retrievable choke for downhole flow m will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1880092