GB707345A - Portable well-servicing rig - Google Patents
Portable well-servicing rigInfo
- Publication number
- GB707345A GB707345A GB1036552A GB1036552A GB707345A GB 707345 A GB707345 A GB 707345A GB 1036552 A GB1036552 A GB 1036552A GB 1036552 A GB1036552 A GB 1036552A GB 707345 A GB707345 A GB 707345A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinder
- ram
- fluid
- mast
- pivoted
- 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
- 239000012530 fluid Substances 0.000 abstract 6
- 239000007788 liquid Substances 0.000 abstract 3
- 210000004907 gland Anatomy 0.000 abstract 2
- 210000005069 ears Anatomy 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
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)
- Jib Cranes (AREA)
Abstract
707,345. Raising derrick masts. DRESSER EQUIPMENT CO. April 24, 1952, No. 10365/52. Class 78 (4) A portable derrick rig has a mast pivotally connected to a mobile base for swinging movement between substantially horizontal and vertical positions by a multi-cylinder ram, one end section of which has a fluid pressure reaction surface cooperating with a surface on an intermediate section to form a confined pressure chamber with a restricted orifice to snub relative movement during extension, and restricted outlet means to snub the retraction movement of all the sections. The ends of the sections of the ram, Figs. 6, 6a, screw into a collar 44 fitted with a gland 45 contacting the smaller section and having a sleeve 46 wiping the cylinder wall, the sleeve having grooves 47. The ends of the two lowermost cylinders are open, the third cylinder has a bottom plate with an opening 51, the fourth cylinder has a cylinder member 52 at the bottom fitted with a fluid tight gland 53 and a series of holes 54. Liquid enters the ram through a passage 32 unseating the thimble of a valve 31 so that liquid flows through large slots 33 into the cylinders 26 to 28. The topmost cylinder is extended by the pressure of fluid against the surface 52 and fluid contained in the enclosed space escapes through holes 54 into the cylinder 29 and thence through the restricted openings 34, 38. To retract the ram the direction of the fluid flow is reversed, to retract the cylinder 29 first then the lowest cylinders are retracted by pressure of the mast, the liquid passing through restricted openings 34. The derrick 14 is pivoted to a beam 12 and supports 15 pivoted to the trailer frame. The ram 20 having sections 26 to 29 is pivoted to the frame and to the mast by ears 21 and 22. In the horizontal position the mast rests on a cradle 18 and in the vertical position it abuts a bumper 19. The cylinder is operated by fluid driven by a pump controlled by a four-way valve.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1036552A GB707345A (en) | 1952-04-24 | 1952-04-24 | Portable well-servicing rig |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1036552A GB707345A (en) | 1952-04-24 | 1952-04-24 | Portable well-servicing rig |
Publications (1)
Publication Number | Publication Date |
---|---|
GB707345A true GB707345A (en) | 1954-04-14 |
Family
ID=9966501
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1036552A Expired GB707345A (en) | 1952-04-24 | 1952-04-24 | Portable well-servicing rig |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB707345A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102561347A (en) * | 2012-01-19 | 2012-07-11 | 邓长峰 | Pile hammer with telescopic vertical columns |
-
1952
- 1952-04-24 GB GB1036552A patent/GB707345A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102561347A (en) * | 2012-01-19 | 2012-07-11 | 邓长峰 | Pile hammer with telescopic vertical columns |
CN102561347B (en) * | 2012-01-19 | 2014-05-07 | 邓长峰 | Pile hammer with telescopic vertical columns |
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