US20120006565A1 - Pipe guide for snubbing units - Google Patents
Pipe guide for snubbing units Download PDFInfo
- Publication number
- US20120006565A1 US20120006565A1 US13/160,158 US201113160158A US2012006565A1 US 20120006565 A1 US20120006565 A1 US 20120006565A1 US 201113160158 A US201113160158 A US 201113160158A US 2012006565 A1 US2012006565 A1 US 2012006565A1
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- US
- United States
- Prior art keywords
- pipe
- snubbing
- guide
- travelling
- jack plate
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 claims description 7
- 239000013536 elastomeric material Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000012858 resilient material Substances 0.000 description 1
Images
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
- E21B33/068—Well heads; Setting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/22—Handling reeled pipe or rod units, e.g. flexible drilling pipes
Definitions
- the present invention relates to pipe guides for use in snubbing units for snubbing pipes into and from oil and gas wells.
- Snubbing units are used to feed pipes into and out of subterranean wells.
- a conventional snubbing unit includes stationary snubbing slips or grippers and traveling snubbing slips to alternately grip and release a pipe as the traveling snubbing slips are moved towards and away from the stationary snubbing slips.
- a pipe that is being snubbed into or out of a live well can only support a limited amount of compressive force before the pipe buckles.
- the longer the length of exposed pipe between the point at which the traveling snubbing slips grip the pipe and the point at which the pipe is exposed outside of the well bore determines the allowable compressive load before buckling takes place.
- Hydraulic snubbing units generally comes in two configurations, namely a self-contained, stand-alone configuration, and a rig-assist snubbing unit.
- the self contained stand-alone configuration works well for live wells, where the overall height of the equipment is not all that important because there is typically no spatial limitations in order to handle the pipe that is to be inserted or removed from the live well.
- the overall height is critical because the snubbing unit must work within the height restraint of the top of a derrick forming part of a rig in conjunction with which the snubbing unit is being operated.
- the distance between the top of the snubbing unit and the inside working area from the top of the rig derrick in many cases eliminates the option of having pipe guidance apparatus, because the additional height that the apparatus would add to the snubbing unit would not allow sufficient space for lengths of pipe to be handled. Consequently, the operators have resorted to performing the dangerous short stroking operation on high-pressure wells, as described above.
- Pipe guides which support the pipe to prevent buckling are known. These guides typically guide the pipe being snubbed with a loose guide collar at a point between the stationary snubbing slips, and the travelling snubbing slips.
- the guide collar must have a diameter sufficient to allow tool joint connections to pass through, which have a larger outside diameter than the pipe itself.
- the invention comprises a pipe guide apparatus for guiding a pipe during snubbing of the pipe, comprising:
- the invention comprises a method of snubbing a pipe with a snubbing unit including a pair of hydraulic cylinders and cylinder rods, a traveling jack plate, a top jack plate, travelling snubbing slips and stationary snubbing slips, wherein the method comprises the step of confining the pipe in a transverse direction when the pipe is being snubbed with a flexibly resilient guide member having a substantially circular opening with a diameter closely matching the outside diameter of the pipe.
- FIG. 1 shows a view in elevation of a pipe snubbing unit having a pipe guide, the snubbing unit in a lowered position
- FIG. 2 shows a view corresponding to that of FIG. 1 but with the snubbing unit in an extended position
- FIG. 3 shows a plan view of a travelling pipe guide
- FIG. 4 shows a view in side elevation of the pipe guide of FIG. 3 ;
- FIG. 5 shows a plan view of a stationary pipe guide
- FIG. 6 shows cross-sectional view along line A-A in FIG. 5 .
- the invention relates to pipe guides for snubbing units.
- all terms not defined herein have their common art-recognized meanings.
- the following description is of a specific embodiment or a particular use of the invention, it is intended to be illustrative only, and not limiting of the claimed invention.
- the following description is intended to cover all alternatives, modifications and equivalents that are included in the spirit and scope of the invention, as defined in the appended claims.
- a snubbing unit ( 10 ) comprises a bottom jack plate ( 12 ) and a top jack plate ( 14 ).
- the snubbing unit ( 10 ) has stationary snubbing slips or pipe grippers ( 16 , 17 ), provided with an underlying blow-out preventor ( 18 ), travelling snubbing slips or pipe grippers ( 20 , 21 ) and a pair of hydraulic cylinder jacks ( 24 ) for moving the travelling snubbing slips ( 20 ) vertically towards and away from the stationary snubbing slips ( 16 ).
- the jacks ( 24 ) each comprise a hydraulic cylinder ( 24 ) from which extends a cylinder rod ( 26 ), the hydraulic cylinder ( 24 ) being mounted between the bottom jack plate ( 12 ) and the top jack plate ( 14 ), and the uppermost end of the cylinder rod ( 26 ) being connected to a travelling jack plate ( 28 ) to which the travelling heavy slip ( 20 ), and the travelling snubbing slip ( 21 ) are mounted.
- FIG. 1 shows the snubbing unit in a lowered or retracted state, where the hydraulic cylinder rods ( 26 ) are retracted.
- FIG. 2 shows the same snubbing unit in an extended state, where the travelling jack plate ( 28 ) is pushed up and away from the top jack plate ( 14 ).
- the pipe ( 30 ) for snubbing passes through the travelling slip bowls ( 20 , 21 ), the stationary slip bowls ( 16 , 17 ) and the BOP ( 18 ) as it continues downward into the wellbore (not shown).
- a travelling pipe guide ( 32 ) is disposed between the travelling jack plate ( 28 ) and the top jack plate ( 14 ).
- the travelling pipe guide comprises a base plate ( 34 ) including a pipe guide housing ( 38 ), and a pair of cylinder guides ( 36 ) on either end of the base plate ( 34 ).
- the cylinder guides ( 36 ) slidingly engage the cylinder rods ( 26 ).
- the pipe guide housing ( 38 ) is preferably a split housing, and contains at least one centralizing disc ( 40 ). In one embodiment, two or more centralizing discs ( 40 ) are provided.
- the discs ( 40 ) have a central opening which closely matches the outside diameter of the pipe being snubbed ( 30 ).
- “closely matches” means that the opening permits relatively free axial (vertical) movement of the pipe ( 30 ) through the opening but confines the pipe transversely.
- the inside diameter of the disc opening may be the same as, or slightly smaller than the outside diameter of the pipe. If the opening is slightly smaller than the outside diameter of the pipe, then the discs must be made of a material which deforms to allow insertion of the pipe. Therefore, the discs ( 40 ) are preferably made from a flexibly resilient material, which permits elastic deformation allowing the pipe and tool joint connects to pass through the opening.
- the discs may be formed of a rubber or elastomeric material. Low friction materials may also be preferred to facilitate axial movement of the pipe through the opening.
- the inside diameter of the disc opening may be slightly larger than the outside diameter of the pipe, for example 1%, 2%, 3% or 4% or more. However, it is preferred that the disc opening not be much larger than the pipe, to lower the risk of buckling under larger loadings.
- a pipe may bear significantly more compressive load in its axial direction if it is straight between the two load bearing points. If the pipe is bowed outwards, then it is far more likely to buckle than if it were straight, with the same compressive force.
- the centralizing discs ( 40 ) ensure that the pipe ( 30 ) remains substantially straight below the travelling slips.
- the discs ( 40 ) have an outer peripheral ring portion and an inner opening portion, connected by a web portion which is thinner than the outer and inner portions. This web portion permits slightly more flexibility, without increasing the diameter of the central opening.
- An upper extension rod ( 44 ) passes through a plate ( 45 ) on the base plate ( 34 ) and is attached at its upper end to the travelling jack plate ( 28 ).
- the lower end of the rod ( 42 ) is enlarged so it cannot pass through plate ( 45 ).
- the upper extension rod ( 44 ) will pull the travelling pipe guide upwards.
- a lower extension limit rod ( 42 ) passes through a plate ( 43 ) on the base plate ( 34 ) and is attached at its lower end to the top jack plate ( 14 ). The upper end of the rod ( 42 ) is enlarged so it cannot pass through plate ( 43 ).
- the lower extension limit rod ( 44 ) limits the upward range of motion of the travelling pipe guide ( 32 ).
- a stationary pipe guide ( 50 ) is provided immediately below the top jack plate ( 14 ). It is constructed similarly to the travelling pipe guide ( 32 ) except that is bolted to the same assembly as the stationary slips ( 16 , 17 ), immediately above the slips. It comprises of centralizing disc or discs ( 40 ) in a similar manner to the travelling pipe guide ( 32 ), as shown in FIGS. 5 and 6 .
- the stationary pipe guide ( 50 ) may comprise a split housing ( 52 ) held together by split housing retaining plates ( 54 ) bolted across the split housing seams. The split housing ( 52 ) is bolted to a base plate ( 56 ) which is itself bolted to the stationary snubbing slip stack.
- the cylinder rods ( 26 ) move the travelling snubbing slips ( 20 , 21 ) vertically up and down relative to the stationary snubbing slips ( 16 , 17 ), while the stationary snubbing slips ( 20 , 21 ) and the travelling snubbing slips ( 16 , 17 ) alternately grip the pipe ( 30 ). In this way, the pipe ( 30 ) is fed into or from its well by the snubbing slips by a “hand-over-hand” operation of those slips.
- the snubbing unit ( 10 ), as described above, its assembly and its operation are well known in the art and, therefore, are not described herein in greater detail.
- the maximum allowable stroke by which the pipe ( 30 ) is snubbed can be varied by varying the length of the upper and lower extension limit rods ( 42 , 44 ). These rods function to limit the travel of the travelling jack plate ( 28 ), and to position the travelling pipe guide ( 32 ) between the travelling jack plate ( 28 ) and the top jack plate ( 14 ). The same function may of course by achieved with slings of an suitable material, such as nylon strapping.
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Actuator (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
A pipe guide apparatus for guiding a pipe during snubbing of the pipe includes a pair of hydraulic cylinders and cylinder rods; a stationary guide affixed between a bottom jack plate and a top jack plate, comprising a stationary pipe guide; a travelling jack plate affixed to the cylinder rods; a travelling pipe guide in sliding engagement with the cylinder rods and connected to the travelling jack plate by a lift rod. The stationary pipe guide and the travelling pipe guide each define a pipe opening and has a flexibly resilient guide member having an opening with a diameter closely matching the outside diameter of the pipe being snubbed.
Description
- The present invention relates to pipe guides for use in snubbing units for snubbing pipes into and from oil and gas wells.
- Snubbing units are used to feed pipes into and out of subterranean wells. A conventional snubbing unit includes stationary snubbing slips or grippers and traveling snubbing slips to alternately grip and release a pipe as the traveling snubbing slips are moved towards and away from the stationary snubbing slips.
- Traditional pipe guides on snubbing units used today typically employ two interlocking and telescoping tubes positioned between the stationary snubbing slips and the traveling snubbing slips. Inherent problems with these pipe guides include the space and weight of the pipe guidance systems and the heights which they add to the snubbing units. Also, approximately one half of the effective stroke of the snubbing unit is lost and snubbing operations therefore become much less efficient than would be the case if full snubbing strokes could be taken.
- A pipe that is being snubbed into or out of a live well can only support a limited amount of compressive force before the pipe buckles. The longer the length of exposed pipe between the point at which the traveling snubbing slips grip the pipe and the point at which the pipe is exposed outside of the well bore determines the allowable compressive load before buckling takes place.
- When snubbing against well pressures without pipe guidance apparatus, a reasonable safety factor to prevent buckling can be obtained by not exposing a section of pipe longer than the pipe can support from the generated forces with friction related to the seal point maintaining the well pressure. Additional factors, such as the speed at which the pipe is inserted into or removed from the well, are all part of typical pre-job calculations which are needed to predetermine the maximum allowable length of pipe that can be exposed while manipulating the pipe without possible bucking. Once these calculations have been made, a snubbing operator uses short strokes to move the pipe into or out of the well, never allowing more unsupported exposure than calculated.
- Hydraulic snubbing units generally comes in two configurations, namely a self-contained, stand-alone configuration, and a rig-assist snubbing unit. The self contained stand-alone configuration works well for live wells, where the overall height of the equipment is not all that important because there is typically no spatial limitations in order to handle the pipe that is to be inserted or removed from the live well.
- With a rig assist-snubbing unit, however, the overall height is critical because the snubbing unit must work within the height restraint of the top of a derrick forming part of a rig in conjunction with which the snubbing unit is being operated. The distance between the top of the snubbing unit and the inside working area from the top of the rig derrick in many cases eliminates the option of having pipe guidance apparatus, because the additional height that the apparatus would add to the snubbing unit would not allow sufficient space for lengths of pipe to be handled. Consequently, the operators have resorted to performing the dangerous short stroking operation on high-pressure wells, as described above.
- Pipe guides which support the pipe to prevent buckling are known. These guides typically guide the pipe being snubbed with a loose guide collar at a point between the stationary snubbing slips, and the travelling snubbing slips. The guide collar must have a diameter sufficient to allow tool joint connections to pass through, which have a larger outside diameter than the pipe itself.
- In one aspect, the invention comprises a pipe guide apparatus for guiding a pipe during snubbing of the pipe, comprising:
-
- (a) a pair of hydraulic cylinders and cylinder rods;
- (b) a stationary guide affixed between a bottom jack plate and a top jack plate, comprising a stationary pipe guide;
- (c) a travelling jack plate affixed to the cylinder rods;
- (d) a travelling pipe guide in sliding engagement with the cylinder rods and connected to the travelling jack plate by a lift rod;
wherein the stationary pipe guide or the travelling pipe guide, or both, defines a pipe opening and comprises a flexibly resilient guide member having an opening with a diameter closely matching the outside diameter of the pipe being snubbed.
- In another aspect, the invention comprises a method of snubbing a pipe with a snubbing unit including a pair of hydraulic cylinders and cylinder rods, a traveling jack plate, a top jack plate, travelling snubbing slips and stationary snubbing slips, wherein the method comprises the step of confining the pipe in a transverse direction when the pipe is being snubbed with a flexibly resilient guide member having a substantially circular opening with a diameter closely matching the outside diameter of the pipe.
- In the drawings, like elements are assigned like reference numerals. The drawings are not necessarily to scale, with the emphasis instead placed upon the principles of the present invention. Additionally, each of the embodiments depicted are but one of a number of possible arrangements utilizing the fundamental concepts of the present invention. The drawings are briefly described as follows:
-
FIG. 1 shows a view in elevation of a pipe snubbing unit having a pipe guide, the snubbing unit in a lowered position; -
FIG. 2 shows a view corresponding to that ofFIG. 1 but with the snubbing unit in an extended position; -
FIG. 3 shows a plan view of a travelling pipe guide; -
FIG. 4 shows a view in side elevation of the pipe guide ofFIG. 3 ; -
FIG. 5 shows a plan view of a stationary pipe guide; -
FIG. 6 shows cross-sectional view along line A-A inFIG. 5 . - The invention relates to pipe guides for snubbing units. When describing the present invention, all terms not defined herein have their common art-recognized meanings. To the extent that the following description is of a specific embodiment or a particular use of the invention, it is intended to be illustrative only, and not limiting of the claimed invention. The following description is intended to cover all alternatives, modifications and equivalents that are included in the spirit and scope of the invention, as defined in the appended claims.
- As shown in
FIGS. 1 and 2 , a snubbing unit (10) comprises a bottom jack plate (12) and a top jack plate (14). The snubbing unit (10) has stationary snubbing slips or pipe grippers (16, 17), provided with an underlying blow-out preventor (18), travelling snubbing slips or pipe grippers (20, 21) and a pair of hydraulic cylinder jacks (24) for moving the travelling snubbing slips (20) vertically towards and away from the stationary snubbing slips (16). - The jacks (24) each comprise a hydraulic cylinder (24) from which extends a cylinder rod (26), the hydraulic cylinder (24) being mounted between the bottom jack plate (12) and the top jack plate (14), and the uppermost end of the cylinder rod (26) being connected to a travelling jack plate (28) to which the travelling heavy slip (20), and the travelling snubbing slip (21) are mounted.
-
FIG. 1 shows the snubbing unit in a lowered or retracted state, where the hydraulic cylinder rods (26) are retracted.FIG. 2 shows the same snubbing unit in an extended state, where the travelling jack plate (28) is pushed up and away from the top jack plate (14). - The pipe (30) for snubbing passes through the travelling slip bowls (20, 21), the stationary slip bowls (16, 17) and the BOP (18) as it continues downward into the wellbore (not shown).
- A travelling pipe guide (32) is disposed between the travelling jack plate (28) and the top jack plate (14). The travelling pipe guide comprises a base plate (34) including a pipe guide housing (38), and a pair of cylinder guides (36) on either end of the base plate (34). The cylinder guides (36) slidingly engage the cylinder rods (26). The pipe guide housing (38) is preferably a split housing, and contains at least one centralizing disc (40). In one embodiment, two or more centralizing discs (40) are provided.
- The discs (40) have a central opening which closely matches the outside diameter of the pipe being snubbed (30). In this context, “closely matches” means that the opening permits relatively free axial (vertical) movement of the pipe (30) through the opening but confines the pipe transversely. In one embodiment, the inside diameter of the disc opening may be the same as, or slightly smaller than the outside diameter of the pipe. If the opening is slightly smaller than the outside diameter of the pipe, then the discs must be made of a material which deforms to allow insertion of the pipe. Therefore, the discs (40) are preferably made from a flexibly resilient material, which permits elastic deformation allowing the pipe and tool joint connects to pass through the opening. In one embodiment, the discs may be formed of a rubber or elastomeric material. Low friction materials may also be preferred to facilitate axial movement of the pipe through the opening. In practice, the inside diameter of the disc opening may be slightly larger than the outside diameter of the pipe, for example 1%, 2%, 3% or 4% or more. However, it is preferred that the disc opening not be much larger than the pipe, to lower the risk of buckling under larger loadings.
- As one skilled in the art will appreciate, a pipe may bear significantly more compressive load in its axial direction if it is straight between the two load bearing points. If the pipe is bowed outwards, then it is far more likely to buckle than if it were straight, with the same compressive force. The centralizing discs (40) ensure that the pipe (30) remains substantially straight below the travelling slips.
- In one embodiment, the discs (40) have an outer peripheral ring portion and an inner opening portion, connected by a web portion which is thinner than the outer and inner portions. This web portion permits slightly more flexibility, without increasing the diameter of the central opening.
- An upper extension rod (44) passes through a plate (45) on the base plate (34) and is attached at its upper end to the travelling jack plate (28). The lower end of the rod (42) is enlarged so it cannot pass through plate (45). As the travelling jack plate (28) is pushed upwards, the upper extension rod (44) will pull the travelling pipe guide upwards.
- A lower extension limit rod (42) passes through a plate (43) on the base plate (34) and is attached at its lower end to the top jack plate (14). The upper end of the rod (42) is enlarged so it cannot pass through plate (43). The lower extension limit rod (44) limits the upward range of motion of the travelling pipe guide (32).
- In a preferred embodiment, a stationary pipe guide (50) is provided immediately below the top jack plate (14). It is constructed similarly to the travelling pipe guide (32) except that is bolted to the same assembly as the stationary slips (16, 17), immediately above the slips. It comprises of centralizing disc or discs (40) in a similar manner to the travelling pipe guide (32), as shown in
FIGS. 5 and 6 . The stationary pipe guide (50) may comprise a split housing (52) held together by split housing retaining plates (54) bolted across the split housing seams. The split housing (52) is bolted to a base plate (56) which is itself bolted to the stationary snubbing slip stack. - In operation of the snubbing unit (10), the cylinder rods (26) move the travelling snubbing slips (20, 21) vertically up and down relative to the stationary snubbing slips (16, 17), while the stationary snubbing slips (20, 21) and the travelling snubbing slips (16, 17) alternately grip the pipe (30). In this way, the pipe (30) is fed into or from its well by the snubbing slips by a “hand-over-hand” operation of those slips. The snubbing unit (10), as described above, its assembly and its operation are well known in the art and, therefore, are not described herein in greater detail.
- The maximum allowable stroke by which the pipe (30) is snubbed can be varied by varying the length of the upper and lower extension limit rods (42, 44). These rods function to limit the travel of the travelling jack plate (28), and to position the travelling pipe guide (32) between the travelling jack plate (28) and the top jack plate (14). The same function may of course by achieved with slings of an suitable material, such as nylon strapping.
Claims (10)
1. A pipe guide apparatus for guiding a pipe during snubbing of the pipe, for use with a snubbing unit including a pair of hydraulic cylinders and cylinder rods, a traveling jack plate, a top jack plate, travelling snubbing slips and stationary snubbing slips, the guide comprising:
(a) a stationary pipe guide affixed between a bottom jack plate and a top jack plate; and
(b) a travelling pipe guide in sliding engagement with the cylinder rods and connected to the travelling jack plate by an upper extension limit rod;
wherein the stationary pipe guide or the travelling pipe guide, or both, defines a pipe opening and comprises at least one flexibly resilient guide member having a substantially circular opening with a diameter closely matching the outside diameter of the pipe being snubbed.
2. The apparatus of claim 1 wherein the at least one flexibly resilient guide member is a centralizing disc.
3. The apparatus of claim 2 wherein the stationary pipe guide or the travelling pipe guide, or both, comprises 2 or more centralizing discs.
4. The apparatus of claim 2 or 3 wherein the centralizing disc opening diameter is the same as or slightly smaller than the outside diameter of the pipe being snubbed.
5. The apparatus of claim 2 or 3 wherein the centralizing disc comprises a rubber or elastomeric material.
6. The apparatus of claim 2 or 3 wherein the centralizing disc comprises an outer peripheral ring portion and an inner opening portion, connected by a web portion which is thinner than the outer and inner portions.
7. A method of snubbing a pipe with a snubbing unit including a pair of hydraulic cylinders and cylinder rods, a traveling jack plate, a top jack plate, travelling snubbing slips and stationary snubbing slips, the method comprising the step of confining the pipe in a transverse direction when the pipe is being snubbed with a flexibly resilient guide member having a substantially circular opening with a diameter closely matching the outside diameter of the pipe.
8. The method of claim 7 wherein the guide member opening diameter is the same as or slightly smaller than the outside diameter of the pipe being snubbed.
9. The method of claim 7 or 8 wherein the flexibly resilient guide member comprises a rubber or elastomeric material.
10. The method of claim 9 wherein the flexibly resistant guide member comprises an outer peripheral ring portion and an inner opening portion, connected by a web portion which is thinner than the outer and inner portions.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2709255A CA2709255A1 (en) | 2010-07-08 | 2010-07-08 | Pipe guide for snubbing units |
CA2709255 | 2010-07-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20120006565A1 true US20120006565A1 (en) | 2012-01-12 |
Family
ID=45426189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/160,158 Abandoned US20120006565A1 (en) | 2010-07-08 | 2011-06-14 | Pipe guide for snubbing units |
Country Status (3)
Country | Link |
---|---|
US (1) | US20120006565A1 (en) |
CN (1) | CN102312658A (en) |
CA (1) | CA2709255A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160245026A1 (en) * | 2015-02-23 | 2016-08-25 | Blue Ocean Technologies LLC | Guide apparatus for tubular members in a snubbing unit |
WO2017132394A3 (en) * | 2016-01-26 | 2017-10-19 | Hydraulic Pressure Control | Telescoping snubbing unit frame |
WO2017185168A1 (en) * | 2016-04-26 | 2017-11-02 | Snubbertech Ltd. | Guided telescoping system for a snubbing or drilling assembly |
US9822613B2 (en) | 2016-03-09 | 2017-11-21 | Oceaneering International, Inc. | System and method for riserless subsea well interventions |
US9970243B2 (en) | 2016-07-28 | 2018-05-15 | Oceaneering International, Inc. | Snubbing unit for inserting tubular members without a riser |
WO2019100143A1 (en) * | 2017-11-24 | 2019-05-31 | Folwark Kevin Edward Peter | Integrated snubbing operating platform |
WO2020040830A1 (en) * | 2018-08-24 | 2020-02-27 | Deep Well Services | Well pipe guide assembly and method for using the same |
US10883323B2 (en) | 2018-05-04 | 2021-01-05 | ProTorque Connection Technologies | Rotating control device head installer and remover |
WO2021186119A1 (en) * | 2020-03-20 | 2021-09-23 | Sterlab | Anti-buckling device capable of guiding a cylindrical element that is pushed and moved over a given distance in the direction of its axis |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1868794A (en) * | 1927-10-19 | 1932-07-26 | George L Fuller | Wiper device |
US2655679A (en) * | 1949-01-22 | 1953-10-20 | Byron Jackson Co | Tandem type pipe wiper |
US2895156A (en) * | 1958-08-04 | 1959-07-21 | Petroleum Mechanical Dev Compa | Pipe wiper and housing therefor |
US3071796A (en) * | 1960-04-04 | 1963-01-08 | Empire Rubber Co | Pipe wipers |
US4658894A (en) * | 1985-06-20 | 1987-04-21 | Craig Paul M | Well head pipe stripper |
US6412783B1 (en) * | 1999-09-28 | 2002-07-02 | Scott Finnestad | Self aligning stuffing box for pumpjacks |
US7117948B2 (en) * | 2003-06-27 | 2006-10-10 | Varco I/P, Inc. | Convertible jack |
US20080053661A1 (en) * | 2006-08-30 | 2008-03-06 | Kelly Funk | Pipe guides and methods of guiding pipes in snubbing units |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101094965B (en) * | 2004-11-30 | 2011-11-16 | 瓦克I/P公司 | Apparatus and method for guiding pipe |
-
2010
- 2010-07-08 CA CA2709255A patent/CA2709255A1/en not_active Abandoned
-
2011
- 2011-06-14 US US13/160,158 patent/US20120006565A1/en not_active Abandoned
- 2011-07-07 CN CN2011101894309A patent/CN102312658A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1868794A (en) * | 1927-10-19 | 1932-07-26 | George L Fuller | Wiper device |
US2655679A (en) * | 1949-01-22 | 1953-10-20 | Byron Jackson Co | Tandem type pipe wiper |
US2895156A (en) * | 1958-08-04 | 1959-07-21 | Petroleum Mechanical Dev Compa | Pipe wiper and housing therefor |
US3071796A (en) * | 1960-04-04 | 1963-01-08 | Empire Rubber Co | Pipe wipers |
US4658894A (en) * | 1985-06-20 | 1987-04-21 | Craig Paul M | Well head pipe stripper |
US6412783B1 (en) * | 1999-09-28 | 2002-07-02 | Scott Finnestad | Self aligning stuffing box for pumpjacks |
US7117948B2 (en) * | 2003-06-27 | 2006-10-10 | Varco I/P, Inc. | Convertible jack |
US20080053661A1 (en) * | 2006-08-30 | 2008-03-06 | Kelly Funk | Pipe guides and methods of guiding pipes in snubbing units |
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CA2709255A1 (en) | 2012-01-08 |
CN102312658A (en) | 2012-01-11 |
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