WO2016097838A1 - Trolley for insertion of strings of drill pipes in hydrocarbon production wells and plant equipped with said trolley - Google Patents
Trolley for insertion of strings of drill pipes in hydrocarbon production wells and plant equipped with said trolley Download PDFInfo
- Publication number
- WO2016097838A1 WO2016097838A1 PCT/IB2015/002334 IB2015002334W WO2016097838A1 WO 2016097838 A1 WO2016097838 A1 WO 2016097838A1 IB 2015002334 W IB2015002334 W IB 2015002334W WO 2016097838 A1 WO2016097838 A1 WO 2016097838A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- trolley
- pipe
- stands
- tower
- plant
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B19/14—Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole
- E21B19/15—Racking of rods in horizontal position; Handling between horizontal and vertical position
Definitions
- the present invention relates to a trolley for insertion and extraction plants of strings of drill pipes in production wells of hydrocarbons in general.
- the field of the invention relates to the production of gaseous or liquid hydrocarbons in general, extracted from the respective wells using strings of pipes ("tubing") suitably assembled, connecting the single pipes with a head/tail coupling until the length necessary for reaching the production area or reservoir has been covered.
- strings of pipes strings of pipes
- This type of processing envisages the cyclic insertion and extraction of strings of pipes from the production well by means of a work-over rig, in order to allow both ordinary maintenance interventions and also for restoring the production activity.
- These insertion operations of drill strings are effected by connecting or joining single pipes having a standard length of about 9 m, with a threaded head-to-tail coupling.
- the same pipes are disconnected or separated from each other in correspondence with the same threaded couplings .
- plants are known in which at least two single pipes are reciprocally joined, with a head-tail coupling, outside the rig.
- longer pipe stands are obtained with respect to standard stands, which allows the dead times of the extraction unit to be reduced (Aaron Sinnott: "Taking tubulars offline - Reprinted from Oilfield Technology” - 30 September 2013 (2013-09-30), XP055207318) .
- the main objective of the present invention is therefore to provide a trolley for insertion and extraction plants of strings of drill pipes in production wells of hydrocarbons in general, wherein the above-mentioned trolley is suitable for transferring the mentioned pipe stands from and towards the pipe rack and work-over rig.
- the trolley of the invention also offers the advantage of operating exclusively by gravity in the transportation of pipe stands, whose weight serves for maintaining their correct position during the transfer. This solves the problem of safely and simply moving pipe stands from and towards the plant, without the help of complex hydraulic systems for holding them in the correct transfer position.
- FIG. 1 to 4 illustrate the plant of the invention
- Figure 5 illustrates the layout of the. logistic connection, separation and control pole of the pipes
- Figure 6 illustrates a perspective view of the trolley for moving pipe stands used in the plant of figures 1 to 4;
- Figure 7 illustrates a perspective view of a detail of the slide of the trolley of figure 6;
- Figure 8 illustrates a detail of the pulling fork assembled on the slide of figure 7;
- Figure 9 illustrates the slide of figure 7 without the fork of figure 8
- Figure 10 illustrates the detail of the male of a pipe stand moved with the trolley of the previous figures
- Figure 11 illustrates the trolley of figure 6 in a front view
- Figure 12 illustrates the trolley of figure 6, in a longitudinal section, in the boost phase of the pipe stands of figure 10;
- Figure 13 illustrates a perspective and sectional view of the trolley of figure 12
- Figure 14 illustrates the trolley of figures 12 and 13 in the initial boost phase of the pipe stands
- Figures 15 and 16 illustrate the trolley of figure 6, in a longitudinal and perspective section, during the pulling phase of the pipe stands of figure 10;
- Figures 17 to 19 illustrate a perspective view of the trolley of figure 6, in different transporting positions of the pipe stands on the guide of the pipe rack;
- figure 20 illustrates an exploded view of the trolley of the invention.
- a work-over rig comprises a tower 1 equipped with a travelling block 2, to which the pipe stands 8 consisting of a plurality of single joints 3 are connected, in turn removed from a pipe rack 4 and hoisted towards the rig floor 6 by sliding on a V-door 5.
- the mentioned stand 8 is obtained by the coupling of two pipes 3a and 3b in correspondence with the connection 22 of figure 1, but it is understood that the invention is not limited to the number of pipes forming the mentioned stand 8.
- the stand 8 thus obtained is hoisted, by means of the travelling block 2, onto the rig floor 6, so that it can be coupled with the stand 9 already in the well (figure 4) .
- At least one trolley 10 is advantageously used, that can be moved by means of a chain 11 (figure 2) , or with equivalent systems (hydraulic or mechanical systems) , not shown.
- the trolley 10 of the invention as represented in figures 6 to 9 and 20, comprises an external carter 12, substantially U-shaped, overturned over a guide 13 for transporting the pipe stands 8 onto the pipe rack 4.
- the trolley 10 is equipped with the slide 21 of figure 7, in turn composed of the sliding base 22 of figure 9, on which the pipe stand 8 rests.
- the above- mentioned base 22 is, in turn, completed by the fork 23 of figure 8, whose arc-shaped bottom 24 is removably housed in the corresponding seat 25 of the base 22 of figure 9. Thanks to this embodiment, the dimensions of the forks 23 can be selected in relation to the diameter of the pipe stand 8 in figure 10.
- the slide 21 also comprises a plate 26, destined for receiving the thrust of the tool joint 31 of the pipe stand 8 during their transportation towards the tower 1.
- the same slide 21 of the trolley 10 is, in turn, slidingly supported above a corresponding guiding channel 35 (figures 13, 19) .
- the plate 26 of the slide 21 is equipped with a transversal pin 27 slidingly guided in the direction of the arrows Fl and F2 inside slots 28 positioned on the side walls of the same carter 12 (figures 17 and 18) .
- the movement of the slide 21 in the direction of the arrow Fl of figure 16 is effected in contrast with the action of a spring 29 interposed between said plate 26 and a fixed shoulder 30 of the same carter 12.
Abstract
A trolley (10) for transferring pipe stands (8) between a tower and a pipe rack of a plant for the insertion and extraction of strings of drill pipes in production wells of hydrocarbons in general, wherein said trolley (10) comprises a movable slide (21), relating to said trolley (10), between a boost direction of said pipe stands towards the tower and a pulling direction of the same pipe stands (8) from the tower towards the pipe rack of said plant.
Description
TROLLEY FOR INSERTION OF STRINGS OF DRILL PIPES IN HYDROCARBON PRODUCTION WELLS AND PLANT EQUIPPED WITH SAID TROLLEY
Description
The present invention relates to a trolley for insertion and extraction plants of strings of drill pipes in production wells of hydrocarbons in general.
The field of the invention relates to the production of gaseous or liquid hydrocarbons in general, extracted from the respective wells using strings of pipes ("tubing") suitably assembled, connecting the single pipes with a head/tail coupling until the length necessary for reaching the production area or reservoir has been covered.
This type of processing envisages the cyclic insertion and extraction of strings of pipes from the production well by means of a work-over rig, in order to allow both ordinary maintenance interventions and also for restoring the production activity. These insertion operations of drill strings are effected by connecting or joining single pipes having a standard length of about 9 m, with a threaded head-to-tail coupling. In the extraction phase of the strings, the same pipes, however, are disconnected or separated from
each other in correspondence with the same threaded couplings .
Consequently, the extraction and insertion movements of the strings must be interrupted, at every interval of 9 meters of pipe, for the time necessary for unscrewing and screwing the threaded connection couplings between adjacent pipes. These interruptions, however, are undesired as they negatively affect the production recovery, causing additional operational costs and loss of production. In the known art described above, the time necessary for transferring the single 9 meter drill pipes from the pipe rack to the work-over rig also contributes to increasing the interruption times of the production activity of the well .
In order to overcome these drawbacks, plants are known in which at least two single pipes are reciprocally joined, with a head-tail coupling, outside the rig. In this way, longer pipe stands are obtained with respect to standard stands, which allows the dead times of the extraction unit to be reduced ( (Aaron Sinnott: "Taking tubulars offline - Reprinted from Oilfield Technology" - 30 September 2013 (2013-09-30), XP055207318) .
In moving pipe stands composed of two or more pipes having a standard length, the problem arises, however, of availing of a suitable transportation trolley, which
is suitable for moving and supporting pipes having a greater length and weight with respect to standard values .
The main objective of the present invention is therefore to provide a trolley for insertion and extraction plants of strings of drill pipes in production wells of hydrocarbons in general, wherein the above-mentioned trolley is suitable for transferring the mentioned pipe stands from and towards the pipe rack and work-over rig.
This and other objectives are achieved by means of the trolley and plant of claims 1 and 7 respectively. Preferred embodiments of the invention can be found in the remaining claims.
With respect to known trolleys used in plants for the insertion and extraction of pipes in production wells of hydrocarbons in general, that according to the present invention offers the advantage of allowing the safe movement of pipe stands having greater lengths and weights with respect to those used in this type of application.
The trolley of the invention also offers the advantage of operating exclusively by gravity in the transportation of pipe stands, whose weight serves for maintaining their correct position during the transfer. This solves the problem of safely and simply moving pipe stands from and towards the plant, without the
help of complex hydraulic systems for holding them in the correct transfer position.
These and other objectives, advantages and characteristics appear evident from the following description of a preferred embodiment of the trolley and plant of the invention, illustrated, for non- limiting purposes, in the figures of the enclosed drawings .
In the same:
Figures 1 to 4 illustrate the plant of the invention;
Figure 5 illustrates the layout of the. logistic connection, separation and control pole of the pipes; Figure 6 illustrates a perspective view of the trolley for moving pipe stands used in the plant of figures 1 to 4;
Figure 7 illustrates a perspective view of a detail of the slide of the trolley of figure 6;
Figure 8 illustrates a detail of the pulling fork assembled on the slide of figure 7;
Figure 9 illustrates the slide of figure 7 without the fork of figure 8;
Figure 10 illustrates the detail of the male of a pipe stand moved with the trolley of the previous figures; Figure 11 illustrates the trolley of figure 6 in a front view;
Figure 12 illustrates the trolley of figure 6, in a longitudinal section, in the boost phase of the pipe stands of figure 10;
Figure 13 illustrates a perspective and sectional view of the trolley of figure 12;
Figure 14 illustrates the trolley of figures 12 and 13 in the initial boost phase of the pipe stands;
Figures 15 and 16 illustrate the trolley of figure 6, in a longitudinal and perspective section, during the pulling phase of the pipe stands of figure 10;
Figures 17 to 19 illustrate a perspective view of the trolley of figure 6, in different transporting positions of the pipe stands on the guide of the pipe rack; and
figure 20 illustrates an exploded view of the trolley of the invention.
As illustrated in Figure 1, a work-over rig comprises a tower 1 equipped with a travelling block 2, to which the pipe stands 8 consisting of a plurality of single joints 3 are connected, in turn removed from a pipe rack 4 and hoisted towards the rig floor 6 by sliding on a V-door 5.
In the example illustrated, the mentioned stand 8 is obtained by the coupling of two pipes 3a and 3b in correspondence with the connection 22 of figure 1, but it is understood that the invention is not limited to the number of pipes forming the mentioned stand 8.
After assembling the pipes 3a and 3b on the pipe rack 4, the stand 8 thus obtained is hoisted, by means of the travelling block 2, onto the rig floor 6, so that it can be coupled with the stand 9 already in the well (figure 4) .
According to the invention, in order to facilitate the transfer of the stands 8 from and towards the rig floor 6, at least one trolley 10 is advantageously used, that can be moved by means of a chain 11 (figure 2) , or with equivalent systems (hydraulic or mechanical systems) , not shown.
The management of the plant of the previous figures can be effected according to the scheme of figure 5. In the same, a certain number of work-over rigs, 16, 17, 18 is served by an assembly and disassembly station 19 of the stands 8 outside the same rigs. The transportation of these stands from the station 19 to the same rigs 16-18 is effected with the help of special means 20.
The trolley 10 of the invention, as represented in figures 6 to 9 and 20, comprises an external carter 12, substantially U-shaped, overturned over a guide 13 for transporting the pipe stands 8 onto the pipe rack 4.
The trolley 10 is equipped with the slide 21 of figure 7, in turn composed of the sliding base 22 of figure 9, on which the pipe stand 8 rests. The above- mentioned base 22 is, in turn, completed by the fork 23
of figure 8, whose arc-shaped bottom 24 is removably housed in the corresponding seat 25 of the base 22 of figure 9. Thanks to this embodiment, the dimensions of the forks 23 can be selected in relation to the diameter of the pipe stand 8 in figure 10.
The slide 21 also comprises a plate 26, destined for receiving the thrust of the tool joint 31 of the pipe stand 8 during their transportation towards the tower 1. The same slide 21 of the trolley 10 is, in turn, slidingly supported above a corresponding guiding channel 35 (figures 13, 19) .
As better illustrated in figures 12 and 16, the plate 26 of the slide 21 is equipped with a transversal pin 27 slidingly guided in the direction of the arrows Fl and F2 inside slots 28 positioned on the side walls of the same carter 12 (figures 17 and 18) . The movement of the slide 21 in the direction of the arrow Fl of figure 16 is effected in contrast with the action of a spring 29 interposed between said plate 26 and a fixed shoulder 30 of the same carter 12.
In the boost phase towards the tower 1 of the pipe stand 8, in the direction of the arrow F2 of figures 12 to 14, the plate 26 pushes against the tool joint 31 of the above-mentioned pipe stand 8, crushing the spring 29 until it interferes against the shoulder 30. In this way, the pipe stand 8 is caused to slide above the guide 13, in the direction of the tower 1. The movement
of the slide 21 on the guide 13 is advantageously effected with the help of rolls 32, in turn sliding on respective rails 33 of the same guide 13 (figure 19) .
In the contrary movement of the slide 21, arrow Fl of figures 15 and 16, the fork 23 grips the shoulder 34 of the tool joint 31 of figures 10, 15 and 16. In these conditions, the position of the plate 26 of the slide 21 corresponds to the rest position of the spring 29. With this movement of the slide 21, the pip stand 8 is removed from the tower 1 in the direction of the outlet of the pipe rack 4.
Claims
1. A trolley for transferring pipe stands (8) between the tower (1) and pipe rack (4) of a plant for the insertion and extraction of strings of drill pipes in production wells of hydrocarbons in general, characterized in that it comprises a movable slide (21), relating to the above-mentioned trolley (10), between a boost direction (F2) of the above-mentioned pipe stands (8) towards the tower (1) and a pulling direction (Fl) of the, same pipe stands (8) from the tower (1) towards the pipe rack (4) of said plant.
2. The trolley according to claim 1, characterized in that said slide (21) comprises a supporting base (22) of said pipe stands (8) .
3. The trolley according to claim 2, characterized in that said slide (21) comprises an engagement fork (23) with said pipe stands (8), said fork (23) being removably assembled inside a corresponding seat (25) of said base (22 ) .
4. The trolley according to claim 3, characterized in that it also comprises a carter (12) having side slots (28), said slide (21) also comprising a transversal pin (27) passing through said slots (28) and sliding in the direction of said arrows (Fl,F2).
5. The trolley according to claim 4, characterized in that it comprises a fixed opposing shoulder (30) for a thrust spring (29) of said plate (26) .
6. The trolley according to claim 5, characterized in that it comprises sliding rolls (32).
7. A work-over rig for the insertion and extraction of strings of drill pipes in production wells of hydrocarbons, comprising a tower (1), a rig floor (6) and a pipe rack (4) for pipe stands (8) obtained from the assembly of at least two single pipes (3a, 3b) having a standard length, effected prior to the transfer of the same pipe stands (8) to said tower (1), characterized in that it is equipped with a trolley (10) according to one or more of the previous claims.
8. The plant according to claim 7, characterized in that it comprises a supporting guide (13) for sliding rails (33) of the trolley (10) in correspondence with its rolls (32), a channel (35) also being envisaged for guiding said base (22) .
9. The plant according to claim 8, characterized in that said assembly of at least two single pipes (3a, 3b) is effected on the above-mentioned pipe rack (4), the stand (8) thus obtained being hoisted on said rig floor (6) and being subsequently coupled with the stand (9) already inserted in the well.
10. A management system of the plant according to one or more of the previous claims, characterized in that it comprises a servo-station (19) of at least one work- over rig (16,17,18), the same station (19) effecting
the assembly and disassembly of said stands (8) outside the at least one rig (16,17,18).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP15826158.6A EP3234301A1 (en) | 2014-12-17 | 2015-12-14 | Trolley for insertion of strings of drill pipes in hydrocarbon production wells and plant equipped with said trolley |
| US15/537,822 US20170356256A1 (en) | 2014-12-17 | 2015-12-14 | Trolley for insertion and extraction plants of strings of drill pipes in production wells of hydrocarbons in general and plant equipped with said trolley |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI2014A002159A ITMI20142159A1 (en) | 2014-12-17 | 2014-12-17 | IMPROVED PROCESS AND PLANT FOR THE INSERTION AND EXTRACTION OF SHAFT STRINGS IN HYDROCARBON PRODUCTION WELLS IN GENERAL |
| ITMI2014002159 | 2014-12-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016097838A1 true WO2016097838A1 (en) | 2016-06-23 |
Family
ID=52472408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2015/002334 WO2016097838A1 (en) | 2014-12-17 | 2015-12-14 | Trolley for insertion of strings of drill pipes in hydrocarbon production wells and plant equipped with said trolley |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3234301A1 (en) |
| IT (1) | ITMI20142159A1 (en) |
| WO (1) | WO2016097838A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019014294A1 (en) * | 2017-07-14 | 2019-01-17 | Cameron International Corporation | Horizontal offline stand building system and method of its use in drilling operations |
| CN110255089A (en) * | 2019-05-27 | 2019-09-20 | 四川宏华石油设备有限公司 | A kind of marine riser transporting system |
| US11428056B1 (en) | 2020-03-11 | 2022-08-30 | Forum Us, Inc. | Pipe puller for drilling and service rig pipe handlers |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070221385A1 (en) * | 2006-03-21 | 2007-09-27 | Saxon Energy Services Inc. | Apparatus and Method for Forming Stands |
| US20120121364A1 (en) * | 2010-11-12 | 2012-05-17 | Mark Charles Taggart | Apparatus and method for handling pipe |
| US20130266404A1 (en) * | 2012-04-10 | 2013-10-10 | Key Energy Services, Llc | Pipe handling apparatus |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3633771A (en) * | 1970-08-05 | 1972-01-11 | Moore Corp Lee C | Apparatus for moving drill pipe into and out of an oil well derrick |
| US3795326A (en) * | 1972-05-22 | 1974-03-05 | Armco Steel Corp | Apparatus for handling drill pipe |
| EP1246998B1 (en) * | 2000-01-13 | 2006-04-19 | Maritime Hydraulics AS | Horizontal pipe handling device |
| US8875447B2 (en) * | 2012-06-21 | 2014-11-04 | Superior Energy Services-North America Services, Inc. | Mast and guy wire systems for use with long lateral completion systems and method |
| WO2014172770A1 (en) * | 2013-04-25 | 2014-10-30 | Custom Pipe Handlers Canada Inc. | Pipe handling apparatus and method |
-
2014
- 2014-12-17 IT ITMI2014A002159A patent/ITMI20142159A1/en unknown
-
2015
- 2015-12-14 WO PCT/IB2015/002334 patent/WO2016097838A1/en active Application Filing
- 2015-12-14 EP EP15826158.6A patent/EP3234301A1/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070221385A1 (en) * | 2006-03-21 | 2007-09-27 | Saxon Energy Services Inc. | Apparatus and Method for Forming Stands |
| US20120121364A1 (en) * | 2010-11-12 | 2012-05-17 | Mark Charles Taggart | Apparatus and method for handling pipe |
| US20130266404A1 (en) * | 2012-04-10 | 2013-10-10 | Key Energy Services, Llc | Pipe handling apparatus |
Non-Patent Citations (2)
| Title |
|---|
| A SINNOTT: "A streamlined approach to tubular management", 1 February 2013 (2013-02-01), XP055207319, Retrieved from the Internet <URL:http://www.oedigital.com/people/item/2424-a-streamlined-approach-to-tubular-management> [retrieved on 20150811] * |
| AARON SINNOTT, TAKING TUBULARS OFFLINE - REPRINTED FROM OILFIELD TECHNOLOGY, 30 September 2013 (2013-09-30) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019014294A1 (en) * | 2017-07-14 | 2019-01-17 | Cameron International Corporation | Horizontal offline stand building system and method of its use in drilling operations |
| CN110255089A (en) * | 2019-05-27 | 2019-09-20 | 四川宏华石油设备有限公司 | A kind of marine riser transporting system |
| US11428056B1 (en) | 2020-03-11 | 2022-08-30 | Forum Us, Inc. | Pipe puller for drilling and service rig pipe handlers |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3234301A1 (en) | 2017-10-25 |
| ITMI20142159A1 (en) | 2016-06-17 |
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