EP3084113A2 - A casing tool - Google Patents
A casing toolInfo
- Publication number
- EP3084113A2 EP3084113A2 EP14821629.4A EP14821629A EP3084113A2 EP 3084113 A2 EP3084113 A2 EP 3084113A2 EP 14821629 A EP14821629 A EP 14821629A EP 3084113 A2 EP3084113 A2 EP 3084113A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- casing
- sleeve
- top cover
- axial
- tool
- 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.)
- Withdrawn
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
- E21B19/02—Rod or cable suspensions
- E21B19/06—Elevators, i.e. rod- or tube-gripping devices
-
- 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
- E21B19/16—Connecting or disconnecting pipe couplings or joints
Definitions
- the present invention concerns a casing tool and a method for connecting casing tubulars using a top drive as disclosed in the introductory part o the main claims. More specifically the invention concerns at casing tool that may be releasably fixed to a top drive in a drilling derrick for interconnecting casing tubulars, i.e. casings inserted into drilling holes for hydrocarbon productions.
- Background and prior art :
- sections of casing tubulars are being interconnected and inserted into a borehole to achieve the extended length of the borehole lining.
- the slips of a spider located on the floor of the drilling platform are often used.
- the new section or stand of casing is then moved from a rack to the well centre ab ve the spider.
- the treaded pin of the section of casing tubular to be connected is then located over the threaded box of the casing in the well and the connection is made up by rotation there between.
- An elevator is then connected to the top of the new section and the whole casing string is I i fted slightly to enable the slips of the spider to be released.
- the whole casing string is then lowered unti l the top of the section is adjacent the spider whereupon the slips of the spider are reappli ed, the elevator disconnected and the process repeated.
- top drive In the last decades use of top drive has been common in order to perform the interconnection of casing tubulars with sufficient torque strength. This type of operati ns requires the use of a dedicated tool that may connect to the top drive in one longitudinal end and may engage with the casing tubular at the other end so that the casing tub lar can be rotated and lifted/lowered in to/out of the bore hole.
- An example of connecting tubular sections using a top drive and a corresponding casing tool is disclosed in publication WO 00/05483.
- This casing tool comprises a plural ity of gripping elements that are radially displaceablc by hydraulic or pneumatic fluid in order to drivingly engage the tubula section.
- Another object of the present invention is to present a solution providing an easier and more cost effective activation of the engagement between the tool and the casing tubular, and which also fulfills the requirements of robustness and reliability.
- Another object of the invention is to provide an engagement mechanism that may be easily released, both in normal operations and in case of certain mechanical malfunctioning.
- the invention concerns a casing tool for connecting casing tubulars using a top drive.
- the casing to l comprises a top cover that may be connected either releasably or non-releasably to the top drive and an elongated inner body that may be connected relea singly to the top cover.
- the inner body displays a longitudinally directed through-going channel, preferably with a gasket near one of its longitudinal ends, and comprises a first longitudinal part sl ideably arranged with in the top cover and a second longitudinal part that may be guided into a casing tubular.
- the casing tool further comprises a first sleeve arranged concentric and axial displaceable along at least part of the inner body at an axial distance (d) from the top cover, force transferring means for transferring a first external axial force (F 1 ) exerted on the top cover in directed towards the casing tubular at least partly to the first sleeve, at least one clamp connected radially displaceable to the first sleeve for engaging the inside wall of the casing tubular and radial displacement means extending at least partly along the second longitudinal part of the inner body for imparting radial displacement of at least one of the at least one clamp during relative axial displacement of the first sleeve and the inner body.
- the first external axial force (Fl) is preferably exerted after an obstruction of axial displacement of the inner body relative to the casing tubular
- the casing tool further comprising a first impact means configured to abut the end of the casing tubing during insertion therein, where an obstruction of the axial displacement of the inner body relative to the casing tubular is ensured by connecting the first impact means to the inner body via the force transferring means, for example when the at least one clamp is in an engaging position.
- the first impact means may comprise a first impact face situated between the end of the first sleeve facing the top cover and the radial displacement means.
- the first impact means may be connected by connection means to an outer enclosure radially enclosing at least the end of the first sleeve facing the top cover and the force inducing means.
- the force transferring means comprises a second sleeve arranged adjacent to the end of the top cover facing the second longitudinal part and at least one locking means arranged in contact with the axial end of the first sleeve facing the top cover, wherein the force transferring means is configured so that an axial force on the second sleeve activates a mainly casing tubing directed axial displacement of the at least one locking means.
- the at least one locking means may comprise at least one pivot arm, where an axial force on the second sleeve causes a mainly outward oriented radial displacement of a first arm of the pivot arm and a mainly casing tubing directed axial force from the second arm o the iv ot arm.
- the second arm may be either in direct or indirect contact with the first sleeve.
- the second sleeve may further comprise a third sleeve and an annular body connected to an axial end of the third sleeve lacing the second longitudinal part and radially abutting a contact face of the first arm of at least one pivot arm, wherein the annular body comprises a radial projection configured to impose the outward directed radial displacement of the first arm during axial displacement of the seco d sleeve.
- the at least one locking means may comprise at least one lockable wheel and a lower sleeve, wherein an axial force on the second sleeve causes a release o the at least one lockable wheel and a mainly casing tubing directed axial force from the lower sleeve.
- the first sleeve comprises an inner tubing extending at least across the radial displacement means situated on the inner body and a flange or collar connected to the end of the inner tubing fac ing the top cover.
- the outer diameter of the flange is larger than the outer diameter of the inner tubing.
- the first sleeve displays at least one clamp fitting recess, wherein each recess is configured to allow its corresponding clamp to be displaced in the radial direction only after assembly.
- the radial displacement means comprises at least one first tapered face.
- the at least one of the at least one clamp may comprise at least one second tapered face facing the at least one first tapered face.
- the axial end of the top cover facing the second longitudinal part and the axial end of the force transferring means facing the top cover, for example the axial end of the third sleeve are configured as interacting cam bodies al lowing interconnection by rotation.
- This interconnection may for example be obtained by exerting an external axial force (F) that causes the contact face of the first arm to supersede the radial projection.
- the interacting cam bodies are advantageously configured to al low a top cover directed axial displacement of the second sleeve when the interacting cam bodies are rotated into the interconnected state and a third external axial force (F3) directed towards the casing tubing is exerted on the top cover.
- This axial displacement of the second sleeve causes the at least one clamp to release the radial force on the casing tubular set up by the radial displacement during engagement.
- the displacement may cause the second sleeve to axially disconnect from the at least one pivot arm.
- the casing tool further comprising at least one second sleeve connected release mechanism configured to allow a top cover directed axial displacement of the second sleeve.
- the axial displacement may cause the second sleeve to disconnect from the at least one pivot arm.
- the invention also concerns a method using a casing tool in accordance with the above mentioned characteristics.
- the method comprising the following steps:
- the method may further comprise the step:
- Figure 1 is a perspective view of the casing tool in accordance wi h a first embodiment of the invention showing the tool in engaged position
- Figure 2 is a radial view of the casing tool in accordance ith Figure 1 showing the engaged tool inserted into a casing tubular.
- Figure 3 is a cross sectional view of the casing tool along section A-A of igure 2
- F igure 4 is a radial view of the casing tool in accordance with Figure 1 with the outer enclosure removed,
- Figure 5 is a cross sectional view of the casing tool along section A-A of Figure 4.
- Figure 6 is a cross sectional view of the casing tool along section B-B of Figure 5,
- Figure 7 is a cross sectional view of the casing tool along section C-C of Figure 5
- Figure 8 is a cross sectional view of the casing tool in accordance with the invention, showing the end of the tool inserted into the casing tubular.
- Figure 9 is a schematic view showing the principals of converting axial displacement of the dies into radial displacement using tapered faces, wherein fig. 9 (a) is showing the initial engagement due to movement of the die and fig. 9 (b) is showing the additional engagement due to opposite di ected tensioning of the inner body.
- Figure 10 is a radial view of the casing tool in accordance with a second embodiment of the invention showing the tool in engaged position
- Figure 1 1 is a cross sectional view of the casing tool along section A-A of figure 1 0
- Figure 1 2 is a cross sectional view of the casing tool along a section perpendicular to section A-A of figure 1 0 relative to the tools axial axis and
- Figure 13 is a cross section view of the casing tool along a section D-D of figure 12.
- Figure 1 shows one embodiment of the casing tool 1 in a perspective view
- Figures 2 and 3 show the same casing tool 1 as in Figure I in a radial view and a cross sectional view along section A-A, respectively, after completing an engaging insertion into a casing tubular 4.
- upper and lower signify the orientation from and to the casing tubular 4, respectively.
- outward and inward signify the radial orientation from and to the center of the tool 1, respectively.
- the particular embodiment of the invent ive tool 1 comprises the following main components:
- top drive part 2 having upper threads in order to connect to a top drive (not shown),
- an inner tubular 6 comprising an upper tubular 6' situated mainly within the top drive part 2 and the upper cam body 1 8 and a lower tubula 6" situated mainly within the casing tubular 4 after complete engagement,
- a through-going fluid channel 27 extending throughout the entire length of the inner body 6.
- an upper impact piece 20 (figure 5) connected to the upper tubular 6" with a lock ring 21 and situated within an annular cavity formed by the top drive part 2, the up er cam body 1 8 and the upper tubular 6' ,
- first cam springs 26 interconnecting the upper and lower cam bodies
- annular spring 14, 14' having an outward oriented bulge or protrusion 14'
- a lower impact piece 10 configured to abut the threaded part 5 of the casing tubular 4.5 after insertion
- a plurality pivot arms 12 comprising a long arm 12', a short arm 12" and a pivot point in form of a bolt 13 fixed to the lower impact piece 10,
- a sleeve 8 having a flange 1 1 at its upper end and die recesses at its lower end.
- each die 34 comprises an elastomeric contacting face 1 9 at its outward directed radial surface and a die zigzag pattern 9" at its inward directed radial surface,
- tubular zigzag pattern 9' at the outer wall of the lower tubular 6", wherein the tubular zigzag pattern 9' and the die zigzag pattern 9" form mirror patterns,
- tilting levers 35 connected at one end underneath the lower cam body 16 and at the other end to sheaves 3 1 via bolt connections 22 and
- top components comprising the top drive part 2, the upper cam body 1 8, the upper impact piece 20. the lock ring 2 1 and the upper gear teeth 42 form an assembly called a top cover 1 00.
- mid components comprising lower cam body 16, the lower gear teeth 40, the annular spring 14, 14' and the pivot arms 12 form an assembly called a force transferring means 200.
- the tool 1 is lowered into the casing tubular 4,5 until its threaded part 5 abuts the lower impact iece 1 0, the latter being fixed to the outer enclosure 3.
- the abutting impact piece 10 prevents any downward axial displacement of the inner tubular 6 since the bulge 14' in the annular spring 14 is located above a contacting face 15 at the end of the long arm 12' of each pivot arm 12.
- the end of the short arm 12" below the pivot point bolt 1 3 is contacting the upper axial face of the sleeve ' s 8 flange 1 1, the hitters being arranged concentrically around the inner tubular 6.
- die recesses configured to allow only radial displacements of the dies 34 when installed.
- the mirrored zigzag patterns 9,9' on the dies 34 and the lower tubular 6" force the dies 34 radially outwards.
- the desired clamping of the dies 34 onto the inner walls of the inner tubular 6 is thereby achieved.
- T he lower gear teeth 40 ensure that the lower cam body 16 is only displaced in the axial direction.
- Flange springs 25 may be arranged between the flange 1 1 and the lower impact piece 10 in order to re-position the sleeve 8 and the flange 1 1 when the dies 34 are released from the inner tubular 6.
- Release o the tool 1 from the casing tubular 4 may be achieved by lowering the top drive part 2 and the upper cam body 18 applying a downward directed force, while enforcing a counterclockwise rotation.
- the latter rotation forms an interconnection between the upper cam body 1 and the lower cam bod 16 in contrast to simple impact 32 in absence of rotation.
- upper cams 33 with upward directed inclined planes 37 at the lower part of the upper cam body 1 8 arc meshing with corresponding inclined planes 37' on the upper part of the lower cam body 16, thereby lifting the latter axially upwards. Due to the axial displacement of the now interconnected bodies 16, 1 8 the long pivot arm 12' looses its grip with the annular spring 14, thus releasing the tool 1 from the casing tubular 4.
- Upper gear teeth 42 arranged between the top drive part 2 and the upper cam body 18 are configured to mesh with the top drive part 2 when impact 30 exists (or about to take place) between the upper cam body 1 8 and the upper impact piece 20, i.e. when the top drive part 2 is in its upper position. Further, arrangement of the first cam springs 26 ensure that such an impact 30 prevails in the absence of downward directed axial force (F).
- the im act piece 20 may be fixed by a locking ring 21.
- the second cam springs 17 ensure positioning of the top drive part 2 relative to the lower cam body 16.
- the tool 1 may be arranged with pivoting levers 35 connected underneath the lower cam bod 16 in one end and sheaves / plates 3 1 fixed by bolts 34 at the other end.
- the plates 31 are fastened to the outer enclosure 3 by screws.
- To manually release the tool I dedicated release or lever screws 23 are inserted so that the pivoting levers 35 pivots around the bolts 34, thereby pressing the lower arm radially inwards and the higher arm axially upwards.
- the lower cam body 1 6 experiences thus a corresponding axial ly displacement, thereby releasing the annular spring 14 from the pre-tensioning long arm 1 2 ' .
- Figure 8 shows the axially displaceable sleeve 8, the radiall displaceable dies 34. the engagement means 9,9',9" and the rubber gasket 7 in further details.
- the displaced mirror configurations of the zigzag patterns constituting the engagement means is apparent. Due to the sliding action on each or some of the tapered surfaces any axial displacement of either the lower tubular 6" or the sleeve 8 results in a radial displacement of the dies 34. The same effect is achieved by any relative axial displacement between these two objects 6 " .8.
- the principle o converting axial displacement of the dies 34 into radial displacement using tapered faces is better illustrated in figure 9 (a) and 9 (b).
- Figures 10- 13 illustrate a second embodiment of the inventive casing tool 1 , where figure 10 shows the casing tool inserted into a casing as v iewed in a radial direction. Further, figures 1 1 and 12 shows a cross sectional view along a section A-A of figure 10 and a cross sectional view along a section perpendicular to section A-A relative to the axial axis, respectively, and figure 13 shows a cross sectional view along a section D-D of figure 12.
- the second embodiment of the inventive tool 1 comprises the following main components:
- top drive part 2 having threads in order to connect to a top drive (not shown),
- an inner tubular 6 comprising an upper tubular 6' situated mainly within the top drive part 2 and the upper cam body 18 and a lower tubular 6" situated mainly within the casing tubular 4 after complete engagement
- an upper impact piece 20 connected to the upper tubular 6' with a lock ring 21 and situated within an annular cavity formed by the top drive part 2, the upper cam body 1 8 and the upper tubular 6 ⁇
- releasable wheels 52 situated within recesses along the radial surface of the lower cam body 16,
- a sleeve 8 having a flange 1 1 at its u per end and die recesses at its lower end
- each die 34 comprises an elaslomeric contacting face 19 at its outward directed radial surface and a die zigzag pattern 9" at its inward directed radial surface,
- tubular zigzag pattern 9' at the outer wall of the lower tubular 6", wherein the tubular zigzag pattern 9' and the die zigzag pattern 9" form mirror patterns,
- the top components comprising the top drive part 2, the upper cam body 18, the upper impact piece 20, the lock ring 21 and the upper gear teeth 42 form the assembly cal led the top cover 100.
- the mid components comprising lower cam body 16, the lower gear teeth 40.
- the mid sleeve 5 1 , the releasable wheels 52, the triangular brackets 53, the low er sleeve 54, the elongated brackets 55, the inner tubular flange 56 and the lower sleeve springs 56 form the assembly called the force transferring means 200.
- the tool 1 is lowered into the casing tubular 4,5 until its threaded part 5 abuts the lower impact piece 10.
- the abutting impact piece 10 prevents any downward axial displacement of the inner tubular 6 since the impact piece 10 is coupled to the inner tubular 6 by the screws 57 and also to the lower cam body by the l cked wheels 52.
- Exertion of axial forces on the tool 1 in direction of the casing tubular 4,5 cause corresponding a ial displacements of the top drive part 2, the upper impact piece 20 and upper cam body 18.
- the upper cam body 18 will impact the lower cam body 1 6 in an impact area 32, causing an axial force to be exerted also on the latter 16.
- the force will release the wheel 52 which again causes the lower end of the lower cam body to impart downward directed pressure on the inner tubular flange 56. Further, the inner tubular flange 56 abuts the lower sleeve 54. creating the axial pressure on the flange 1 1 and thus the zigzag pattern induced radial displacement of the dies 34.
- both the initial pre-tensioning clamping and the additional clamping are performed without any rotational movements of the tool 1 .
- Release o the tool 1 from the casing tubular 4 may be achieved by lowering the top drive part 2 and the upper cam body 18 applying a downward directed force, and subsequently en forcing a counterclockwise (or alternati vely clockwise) rotation.
- the latter rotation forms an interconnection between the up er cam body 1 8 and the lower cam body 16 in contrast to simple impact 32 in absence of rotation.
- upper cams 33 with upward directed inclined planes 37 at the lower part of the upper cam body 1 8 are meshing with corresponding inclined planes 37 " on the upper part of the lower cam body 1 6, thereby lifting the latter axially upwards (see figure 4). Due to the axial displacement o the now interconnected bodies 16, 18 and the locking of the wheels 52 inside their respective recesses on the lower cam body 1 6.
- Upper gear teeth 42 may be arranged between the top drive part 2 and the upper cam body 18 that are configured to mesh with the top drive part 2 when impact 30 exists (or about to take place) between the u er cam body 18 and the upper impact piece 20 (see figure 5), i.e. when the top drive part 2 is in its upper position. Further, arrangement of the first cam springs 26 ensure that such an impact 30 prevails in the absence of downward directed axial force (F).
- the second cam springs 17 ensure positioning of the top drive part 2 relative to the lower cam body 16.
- the tool 1 may be arranged with dedicated release screws 23 fastened underneath the flange 1 1, going through dedicated holes in the lower sleeve 54.
- the release screws 23 By inserting suitable tools into aligned passages 60 into the lower impact access is gained to the release screws 23.
- a Clockwise directed turns of these screws 23 cause the screw ends to abut underneath the inner tubular flange 56, which again causes an upwards movement of the component constituting the force transferring means 200 and the inner tubing 6.
- the further mechanisms are identical to the regular release described above. in the preceding description, vari us aspects of the apparatus according to the invention have been described with reference to the illustrative embodiment.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20131716A NO339203B1 (en) | 2013-12-20 | 2013-12-20 | Foringsrørverktøy |
PCT/EP2014/078846 WO2015092007A2 (en) | 2013-12-20 | 2014-12-19 | A casing tool |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3084113A2 true EP3084113A2 (en) | 2016-10-26 |
Family
ID=52278633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14821629.4A Withdrawn EP3084113A2 (en) | 2013-12-20 | 2014-12-19 | A casing tool |
Country Status (5)
Country | Link |
---|---|
US (1) | US20160319613A1 (en) |
EP (1) | EP3084113A2 (en) |
CA (1) | CA2934143A1 (en) |
NO (1) | NO339203B1 (en) |
WO (1) | WO2015092007A2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10287830B2 (en) * | 2016-11-14 | 2019-05-14 | Frank's International, Llc | Combined casing and drill-pipe fill-up, flow-back and circulation tool |
US11313183B2 (en) * | 2019-01-19 | 2022-04-26 | Noetic Technologies Inc. | Axial-load-actuated rotary latch release mechanisms for casing running tools |
CN110130831B (en) * | 2019-06-24 | 2024-03-01 | 重庆科技学院 | Top drive casing running device |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9815809D0 (en) | 1998-07-22 | 1998-09-16 | Appleton Robert P | Casing running tool |
CA2512800C (en) * | 2001-03-22 | 2010-10-26 | Noetic Engineering Inc. | Method and apparatus for handling tubular goods |
US8424939B2 (en) * | 2005-05-03 | 2013-04-23 | Noetic Technologies Inc. | Tri-cam axial extension to provide gripping tool with improved operational range and capacity |
MX2007013761A (en) * | 2005-05-03 | 2008-01-28 | Noetic Eng Inc | Gripping tool. |
CA2768010C (en) * | 2005-12-12 | 2016-09-20 | Weatherford/Lamb, Inc. | Apparatus for gripping a tubular on a drilling rig |
CA2646929C (en) * | 2007-12-10 | 2014-01-21 | Noetic Technologies Inc. | Gripping tool with fluid grip activation |
US8454066B2 (en) | 2008-07-18 | 2013-06-04 | Noetic Technologies Inc. | Grip extension linkage to provide gripping tool with improved operational range, and method of use of the same |
-
2013
- 2013-12-20 NO NO20131716A patent/NO339203B1/en not_active IP Right Cessation
-
2014
- 2014-12-19 CA CA2934143A patent/CA2934143A1/en not_active Abandoned
- 2014-12-19 WO PCT/EP2014/078846 patent/WO2015092007A2/en active Application Filing
- 2014-12-19 US US15/104,542 patent/US20160319613A1/en not_active Abandoned
- 2014-12-19 EP EP14821629.4A patent/EP3084113A2/en not_active Withdrawn
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2015092007A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO2015092007A2 (en) | 2015-06-25 |
CA2934143A1 (en) | 2015-06-25 |
NO339203B1 (en) | 2016-11-14 |
WO2015092007A3 (en) | 2015-12-17 |
NO20131716A1 (en) | 2015-06-22 |
US20160319613A1 (en) | 2016-11-03 |
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