GB783396A - Well completion apparatus - Google Patents
Well completion apparatusInfo
- Publication number
- GB783396A GB783396A GB892/56A GB89256A GB783396A GB 783396 A GB783396 A GB 783396A GB 892/56 A GB892/56 A GB 892/56A GB 89256 A GB89256 A GB 89256A GB 783396 A GB783396 A GB 783396A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bore
- string
- suspender
- run
- hanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000009977 dual effect Effects 0.000 abstract 5
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
- E21B33/047—Casing heads; Suspending casings or tubings in well heads for plural tubing strings
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Pipe Accessories (AREA)
Abstract
783,396. Wells. BUTLER, G. A. Jan. 10, 1956 [April 4, 1955], No. 892/56. Class 85 In the completion of a dualproduction-zone parallel-tubing-string well one bore 72 of a dual bore suspender 70 is screwed on to the upper end 51 of one string, and the upper end 52 of the other string is run through the other bore 73 and suspended from within the bore 73. The strings pass through a wrap around seal 18 seating in a bowl 17 at the top of the tubing head 10. The seal comprises metal parts 31, 32 bonded to a rubber part 21, the whole of the seal being diametrically split through the passages for the strings except for a portion of the rubber between a passage and the circumference. The suspension 70 is sealed to the tubing head and a dual valve 90 by steel gaskets 71, 91. A dual T piece 100 is sealed to the top of the dual valve, and a dual control valve 103 is sealed to the top of the T piece. During completion the strings are run through blow-out preventers mounted on top of the tubing head and are suspended from a temporary hanger placed in the bowl. The preventers are removed, the string end 51 is lifted, and the suspender 70 is screwed on the end 51. The string end 52 is lifted, run through the bore 73 of the suspender, and suspended from the bore 73 by a coupling 82. The seal 18 is substituted for the hanger and the suspender is lowered on to the tubing head. In a modification (Fig. 6, not shown), the suspender is replaced by a similarly bored hanger mounted in the bowl of the tubing head, and the seal is dispensed with. In the completion of this structrure one string is run through preventers and one bore of the hanger is screwed on to its end, the hanger is lowered into the bowl, and the other string is run through the preventers and the other bore then lowered so that the string is suspended when a coupling screwed on its end engages the bore.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US783396XA | 1955-04-04 | 1955-04-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB783396A true GB783396A (en) | 1957-09-25 |
Family
ID=22143406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB892/56A Expired GB783396A (en) | 1955-04-04 | 1956-01-10 | Well completion apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB783396A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3068940A (en) * | 1960-08-24 | 1962-12-18 | Marvin H Grove | Completion valve and hanger assembly |
US3080180A (en) * | 1958-06-30 | 1963-03-05 | Rector Well Equipment Company | Tubing hangers |
US3186488A (en) * | 1962-06-20 | 1965-06-01 | Shell Oil Co | Wellhead assembly |
US3451481A (en) * | 1966-06-09 | 1969-06-24 | Rockwell Mfg Co | Dual suspension and seal |
-
1956
- 1956-01-10 GB GB892/56A patent/GB783396A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3080180A (en) * | 1958-06-30 | 1963-03-05 | Rector Well Equipment Company | Tubing hangers |
US3068940A (en) * | 1960-08-24 | 1962-12-18 | Marvin H Grove | Completion valve and hanger assembly |
US3186488A (en) * | 1962-06-20 | 1965-06-01 | Shell Oil Co | Wellhead assembly |
US3451481A (en) * | 1966-06-09 | 1969-06-24 | Rockwell Mfg Co | Dual suspension and seal |
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