Patent US4154299A successfully refreshed from Google Patents.
US4154299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas lift well with improvement
Assignee: Texaco Inc
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Filing: 1977-12-19
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Granted: 1979-05-15
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Expires: 1997-12-19
Abstract
Abstract The combination which includes a gas lift well that has a christmas tree coupled to the casing and to the tubing in the well. There is a flow line to receive liquid product and a choke connected between the flow line and the tubing. The improvement includes a lateral Y connected to the top of the tubing with a streamlined flow path connecting a lateral branch of the Y, from the well side of the choke, to the flow line.
Inventors
- 👤 Ramon E. Winders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 01:04
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B34/00; E21B34/02; E21B43/00; E21B43/12; E21B43/121; E21B43/122
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
87 words
In combination with a gas lift well having tubing mounted therein and including a christmas tree mounted at the top of said well, a flow line for liquid product being lifted from said well, and a choke connected between said well tubing and said flow line, the improvement comprising a lateral Y coupled to the top of said christmas tree, and a streamlined flow path for said liquid product connected from a lateral branch of said lateral Y to said flow line in parallel with said choke.
Claim 2
Dependent Claim
87 words
In combination with a gas lift well having tubing mounted therein and including a christmas tree mounted at the top of said well, a flow line for liquid product being lifted from said well, and a choke connected between said well tubing and said flow line, the improvement comprising a lateral Y coupled to the top of said christmas tree, and a streamlined flow path for said liquid product connected from a lateral branch of said lateral Y to said flow line in parallel with said choke.
Claim 3
Dependent Claim
27 words
The invention according to claim 1, wherein said lateral Y has a straight passage therethrough and means for coupling a well tool onto the free end thereof.
Claim 4
Dependent Claim
29 words
The invention according to claim 2, wherein said streamlined flow path comprises an unobstructed conduit having a large radius curvature for connecting said lateral branch to said flow line.
Claim 5
Dependent Claim
39 words
The invention according to claim 3, also comprising a motor actuated valve coupled into said streamlined flow path, and means for actuating said motor to close said valve if the pressure in said well tubing exceeds a predetermined amplitude.
Claim 6
Dependent Claim
39 words
The invention according to claim 4, also comprising a pair of check valves connected into said streamlined flow path near the ends thereof for permitting fluid flow only in the direction from said well tubing to said flow line.
Claim 7
Dependent Claim
170 words
In combination with a gas lift well having tubing mounted therein and including a christmas tree mounted at the top of said well, a flow line for liquid product being lifted from said well and a choke connected between said well tubing and said flow line, the improvement comprising a lateral Y coupled to the top of said christmas tree and having a lateral branch and a straight passage therethrough and means for coupling a well tool onto the free end of said straight passage, a streamlined flow path comprising an unobstructed conduit having a large radius curvature for connecting said lateral branch to said flow line, a motor actuated valve coupled into said streamlined flow path, means for actuating said valve motor to close said valve if the pressure in said well tubing exceeds a predetermined amplitude, and a pair of check valves connected into said streamlined flow path near the ends thereof for permitting fluid flow only in the direction from said well tubing to said flow line.
Claim 8
Dependent Claim
170 words
In combination with a gas lift well having tubing mounted therein and including a christmas tree mounted at the top of said well, a flow line for liquid product being lifted from said well and a choke connected between said well tubing and said flow line, the improvement comprising a lateral Y coupled to the top of said christmas tree and having a lateral branch and a straight passage therethrough and means for coupling a well tool onto the free end of said straight passage, a streamlined flow path comprising an unobstructed conduit having a large radius curvature for connecting said lateral branch to said flow line, a motor actuated valve coupled into said streamlined flow path, means for actuating said valve motor to close said valve if the pressure in said well tubing exceeds a predetermined amplitude, and a pair of check valves connected into said streamlined flow path near the ends thereof for permitting fluid flow only in the direction from said well tubing to said flow line.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-05-14 | 1982-11-13 | 1983-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-14 | 1986-11-13 | 1987-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-14 | 1990-11-13 | 1991-05-15 | $7700.00 | Window Closed / Lapsed |