US4671099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for measuring the thermodynamic characteristics of a fluid
Assignee: Societe Nationale Elf Aquitaine Production SA
•
Filing: 1986-08-08
•
Granted: 1987-06-09
•
Expires: 2006-08-08
Abstract
Abstract An enclosure 1 has a measurably variable volume chamber 2, a control for controlling the temperature of the fluid contained therein and apparatus for measuring the pressure of the fluid. The chamber is selectively connectable, on the one hand, to a filling device 6, for introducing the sample, and on the other hand to a fluid extraction apparatus 7, 8. The enclosure 1 is selectively connectable to a tubular loop 9 having a circulation pump 10 and apparatus 11 for measuring the density of the sample of circulating fluid. By varying the volume of chamber 2, the thermodynamic characteristics of monophase and diphase fluids can be accurately determined. The apparatus is especially useful for the study of fluid of hydrocarbon deposits.
Inventors
- 👤 Flavien Lazarre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:15
CPC Classifications
G; G01; G01N; G01N25/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
146 words
Apparatus for measuring thermodynamic characteristics of a sample fluid comprising a tubular loop including a circulating pump having an intake fluid density measuring apparatus for measuring the density of a sample fluid as it is circulated through the density measuring apparatus by the circulating pump, an enclosure, a variable volume chamber in the enclosure, said chamber having a high orifice communicating with a top portion of the chamber, and a low orifice, means for measurably varying the volume of said chamber, communicating with a bottom portion of the chamber, means for selectively connecting the high orifice and the low orifice to said loop to selectively introduce fluid from the chamber into the loop from either orifice and to communicate to the loop changes in volume of the enclosure, means for introducing a sample fluid into the apparatus, and means for extracting the sample from the apparatus.
Claim 2
Dependent Claim
146 words
Apparatus for measuring thermodynamic characteristics of a sample fluid comprising a tubular loop including a circulating pump having an intake fluid density measuring apparatus for measuring the density of a sample fluid as it is circulated through the density measuring apparatus by the circulating pump, an enclosure, a variable volume chamber in the enclosure, said chamber having a high orifice communicating with a top portion of the chamber, and a low orifice, means for measurably varying the volume of said chamber, communicating with a bottom portion of the chamber, means for selectively connecting the high orifice and the low orifice to said loop to selectively introduce fluid from the chamber into the loop from either orifice and to communicate to the loop changes in volume of the enclosure, means for introducing a sample fluid into the apparatus, and means for extracting the sample from the apparatus.
Claim 3
Dependent Claim
21 words
Apparatus according to claim 1, wherein the variable volume chamber is connected to the tubular loop to by-pass the circulating pump.
Claim 4
Dependent Claim
18 words
Apparatus according to claim 4 wherein said variable volume enclosure is connected in series in said tubular loop.
Claim 5
Dependent Claim
31 words
Apparatus according to claim 3 wherein said variable volume enclosure is invertible to change said high orifice to a low orifice and to change said low orifice to a high orifice.
Claim 6
Dependent Claim
40 words
Apparatus according to claim 1 wherein said pump has an intake, and the means for selectively connecting the variable volume chamber to the tubular loop comprises means for connecting either orifice of the chamber to the intake of the pump.
Claim 7
Dependent Claim
22 words
Apparatus according to claim 1 wherein the variable volume chamber is connected to the tubular loop to bypass the density measuring apparatus.
References Cited (Backward Citations)
US2943476A
Cited
US3462997A
Cited
US3729981A
Cited
FR2229056A1
Cited
US4170128A
Cited
US4297872A
Cited
US4295368A
Cited
US4348117A
Cited
US4349881A
Cited
US4357824A
Cited
US4428684A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-08 | 1990-12-08 | 1991-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-08 | 1994-12-08 | 1995-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-08 | 1998-12-08 | 1999-06-09 | $7700.00 | Window Closed / Lapsed |