CA2060123A1 - Device for handling down-hole pipes - Google Patents
Device for handling down-hole pipesInfo
- Publication number
- CA2060123A1 CA2060123A1 CA 2060123 CA2060123A CA2060123A1 CA 2060123 A1 CA2060123 A1 CA 2060123A1 CA 2060123 CA2060123 CA 2060123 CA 2060123 A CA2060123 A CA 2060123A CA 2060123 A1 CA2060123 A1 CA 2060123A1
- Authority
- CA
- Canada
- Prior art keywords
- carriage
- pipe
- clamping mechanism
- pivoting
- orientation
- 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
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims 1
- 238000003860 storage Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 101150034533 ATIC gene Proteins 0.000 description 1
- 241000155250 Iole Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000011527 polyurethane coating Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 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
- 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
- E21B19/155—Handling between horizontal and vertical position
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
Machinery on a drill rig displaces a down-hole pipe from a horizontal orientation proximate to a drill floor to a suspended vertical orientation immediately above the drill floor. The machinery includes a guide and a wheeled carriage that travels along the track. The carriage has a swivel that pivots about a vertical axis. A pipe clamping mechanism is connected to theswivel with a pivot joint for pivoting about a generally horizontal axis. An elevator displaces the carriage downwardly to locate the clamping mechanism about one end of a pipe. The elevator then raises the pipe end until the pipe issuspended above the drill floor. A hydraulic cylinder acting between the swivel and the clamping mechanism then pivots the clamping mechanism about the horizontal axis until the pipe is in a vertical orientation. Another pair of hydraulic cylinders pivots the swivel about its vertical pivot axis to locate the suspended pipe above either an opening in the rotary table or a vertical storagehole.
Machinery on a drill rig displaces a down-hole pipe from a horizontal orientation proximate to a drill floor to a suspended vertical orientation immediately above the drill floor. The machinery includes a guide and a wheeled carriage that travels along the track. The carriage has a swivel that pivots about a vertical axis. A pipe clamping mechanism is connected to theswivel with a pivot joint for pivoting about a generally horizontal axis. An elevator displaces the carriage downwardly to locate the clamping mechanism about one end of a pipe. The elevator then raises the pipe end until the pipe issuspended above the drill floor. A hydraulic cylinder acting between the swivel and the clamping mechanism then pivots the clamping mechanism about the horizontal axis until the pipe is in a vertical orientation. Another pair of hydraulic cylinders pivots the swivel about its vertical pivot axis to locate the suspended pipe above either an opening in the rotary table or a vertical storagehole.
Description
DEVICE FOR H~NDL[NG DOWN--~IOLE~, PIPES
FIEL,D OF THE INVENTION
The invention relates generally to installation of pipes in drill holes, and more p~atic~l1arly, to machinery and methods for displacing a large 5 down-hole pipe from a horizontal orientation proximate to a drill floor to a vertical orientations above the drill floor.
BACKGROUND OF THE INVENTION
The invention has particular application to drill rigs. These commonly have a derrick which may have a cladding surro-mding the drill floor 10 perimeter and protecting workers from hostile environrnents. The drill floor m~y be accessed through what is commonly referred to as a "Vee door", a door shaped like an inverted "V". Pipes are pushed or otherwise conveyed to the Vee door along a generally horizontal structure commonly referred to as a "catwalk". These pipes may be drill collars, drill pipes, well casing, production 15 tubing and the like that are to be installed in a pipeline or well lining. The catwalk may have an inclined surface leading upwardly to the drill floor. The pipe must be moved from a generally horizontal orientation on the catwalk to a vertical orientation within the derrick and positioned above a rotary table in the drill floor or over a vertical storage hole referred to as a "mouse hole". Drill20 floor operators or other machinery then takes over the handling of the pipe..Transferring a section of pipe from the catwalk to the drill floor and vertically orienting the pipe is a hcazardous job. A section of well casing,for example, may weigh several tons. A common practice involves locating a wire rope around one end of the pipe. An elevator acting on the rope then hauls 25 the pipe through the Vee door and upwardly to a vertical orientation. The lower end of the pipe, which drags along the catwalk and drill floor, is controlled with another wire rope, which may be payed out by a winch or often by hand. Such :, opcriltion.~ ~Ir~ ~im~-con~sumirlg .m(l involve con.siclerable labour cost. Thèy can potcntially ccause seriou~s worker injLIry.
An alternative to s~lch opcrations W~IS proposed by M~I Maritime Hydraulics. That alterllative involves securing a large boom to an upper scctionS of the derrick with essentially a lclrge clevis~ A pair of arms are pivotecl to the base of the delTick and rise to meet the boorn They f~sten to a carriage that displaces along the boom, and appropriate displacement of the carriage causes the lower end of the boom to pivot between the drill tloor and a pipe storage area. A parallelograrn linkage carrying pipe clamps and operated with hydraulic 10 cylinders extends from the boom to grasp a hori~ontal pipe in the storage area.
The boom and linkage then translate ancl rotate the pipe to a vertical orientation above the drill floor. The proposed system is massive ancl cannot be operated through a conventional Vee door. At least one side of the derrick must be fully open to the elements.
Another alternative is suggested in the September, 1991 newsletter of the Institute of Mecharlical lEngineers entitled "Offshore Engineering News". It involves a single large boom mounted directly to the drill floor. The boom pivots about its base between vertical and horizontal orientations. The boom carries pipe clamps that engage a hori~ontal length of 20 pipe in a storage area and then pivots directly to a vertical position, orienting the pipe vertically above the drill floor. The range of movement once again prohibits use with a Vee door. Also, the equipment would have to be sized to accommodate very large forces, particularly moments, given the manner in which pipe is rotated. ;
Another system has been proposed by Varco BJ Drilling Systems and does attempt to clear a conventional Vee door. The Varco system involves a single boom with a large transverse arm at its base. The arm is pivotmounted to the drill rig. A hydraulic cylinder connected to the arm pivots the .. ~ . . ' . ~
boom between horizont.ll ancl vertical orientations. With the boorn in its horizontal orientation, an elevator ccm lilt and locate a pipe within clamps that are spaced-apart along the boom. The boom is thell pivoted to its vertical orientcation, simultaneously orienting the pipe h1 a vertical or;entation ~bove the S drill floor. The system does re4uire a deep pocket to be formed in the drill floor to receive a lower section of the boom during the swinging action. Becawse of the manner in which pipe swings, the mechanism must be sized to handle large moments. Another consideration is that pipe nlllst be presented to the system with the male pipe end leading. This is the reverse of the normal convention forl0 manual handling of pipe. In the event of a breakdown or power failure, the pipes must be reversed, which causes considerably delay.
SUMMARY OF THE INVENTION
In one aspect, the invention provides apparatus for displacing a down-hole pipe from a generally horizontal orientation to a substantially vertical 15 suspended orientation. The term "down-hole pipe" should be understood as designating a drill pipe, a drill collar, a well casing or production tubing, a pipe adapted for installation in a subsurface drill bore as part of a pipeline (drillstring, production tubing string or well liner).
The apparatus comprises a carriage and a guide :t`or directing 20 movement of the carriage along a generally vertical path. The apparatus also includes a clamping mechanism for receiving and gripping one end portion of the pipe. The clamping mechanisrm is connected to the carriage such that it travels vertically with the carriage and pivots in a vertical plane relative to the carriage. Means are provided for displacing the carriage upwardly along the 25 guide thereby to suspend the gripped pipe. Means are also provided for pivoting the clamping mechanism relative to the carriage thereby to orient the suspended pipe in a substantially vertical orientation.
The apparatus may be supported from a derrick proximate to a ^ .: ~ ' ~' ' ' ' ' .
, , ' Vee cloor and a rotary tabl~ commollly associ.lte(l with (Irilling operations. The pipe m~y be conveyecl horizontally Intil the one end of the pipe enters the Veedoor. The appal atLIs may then engage, raise and pivot the pipe to the req~tiredvertical orientation. With larger pipe, the pipe can be allowecl to swing lnder its 5 own weight progressively dllring passage through the Vee door as the one end is r~ised. When lifted fillly from the conveyor or s-lpporting surface, the centre of gravity of the pipe tends to be positioned immediately below the horizontal pivoting axis of the clamping mechanism. The pipe need only be rotated through a relatively small angle to achieve a vertical orientation, and becallse of 10 the location of the center of gravity a relatively small moment must be accommodated by the means pivoting the clamping mechanism. This of course reduces the size of equipment re4uired for such purposes, such hydraulic cylinders. An alternative method of operating the apparatus with lighter pipe isdescribed below.
Various aspects of the invention will be apparent from a description below of a pre-ferred embodiments and will be more specifically defined in the appended claims.
DESCRIPl`ION OF THE DRAWINGS
The invention will be better understood with reference to 20 drawings in which:
fig. I is a diagrammatic, fragmented elevational view of a derrick on a drill platform and apparatus for handling a down-hole pipe;
fig. 2 is a view comparable to that of fig. 1 showing various ~ ;
stages in the raising of a pipe from a horizontal orientation on a conveyor to a25 vertical orientation over a drill floor;
fig. 3 is a fragmented perspective view of a carriage and clamping mechanism used to raise and lower the pipe;
- -.. , .... . ~ . - . , :
'~ , .
.
l`i~. 4 i~ ;eclion/ll vi~w downwarclly through the carriage ~howing how the ck~ ping mechanism mc1y be pivoted about a vertical axis to locate thc pipe over either a rotary table or a mollse holc; and, Fig. 5 is a side elevation with components of the carriage 5 extensivel-y fragmentecl, detailing mounting of the cLuriage to a guide and mounting of a swivel to a carriage frame.
DESCRIPTION OF PREFERRE3V EMBODIM~NTS
Reference is made to fig. 1 which illustrates portions of a drill rig l0. A derrick 12 (shown in phantom outline) extends upwardly from the drill floor 14. The drill floor 14 has a rotary table 16 (ill~lstrated in fig. 4) with an opening 18 through which a clrill string, well casing or production tubing might be extended. Proximate to the rotary table 16 is ~ mouse hole 20 in which drill pipe is often stored in a verLical orientation in preparation for installation into a drill string. A mechanical roughneck (not illustrated) would15 typically be used to install or remove sections of down-hole pipe from the pipe string. An elevator ~not illustrated) comprising a crown block and a travelling block is normally used to support the tubing string. The features ornitted are entirely conventional, and their use with the apparatus oF the invention will beapparent to those skilled in the art.
Machinery for displacing down-hole pipe is attached to the derrick 12 proximate to the rotary table 16. The machinery includes a guide 22 that is basically a pair of vertical I-beams 24, 26 in parallel relationship. These are supported, suspended above the drill floor 14, by struts joining the I-beams24, 26 to the derrick 12. Two exemplary struts 28, 30 are specifically indicated25 in fig. 4. The guide 22 defines a vertical track -for displacement of a carriage 32. The carriage 32 has two principal parts: a rectangular frame 34 with wheels 36 that are fitted into the channels of the I-beams 24, 26; and a swivel 38. Theswivel 38 is mounted to the frame 34 with bearings 40, 42 to permit pivoting ' ~ ' ' ' :
,: ' ' ' -- , .
aboLIt a gellelally vcltical ~l~iS. A pair Or hydralllic cylinders 44,46 connected between the carri~lge 32 I;ame 34 ancl the swivel 38, one to either sid~ oî the swivel 38, can bc operatecl incli~ ally to pivot the swivel 38 in opposing directions.
A pipe clamping mechanism 48 is connected to the carriage 32.
The clamping mechanism 48 includes a rigid fiame comprising arms 50,52 at right-angles to one another and a reinforcing strut 54 extending between the arms S0,52. A c]evis 56 ~orms a pivot joint between one arm 50 and the swivel 38 that permits the clamping mechanisrn 48 to pivot about a horizontal axis. A hydraulic cylinder S$ is connected with a clevis (not indicated) to the base of the swivel 38 and through a triangular plate 60 to the arm 50. When actuated, the hydraulic cylinder 58 pivots the entire clamping mechanism 48 through a range of about 90 degrees The clamping mechanism 48 consequently travels vertically with the carriage 32 and pivots about a generally horizontal axis relative to the carriage 32. As mentioned above, the swivel 38 itself pivots, permitting the clamping mechcmism 48 to pivot about a vertical axis relative to the carriage frame 34. The pair of hydraulic cylinders 44,46 connecting the swivel 38 to the carriage frame 34 can pivot the clamping mechanism 48 through a range of about 30 degrees about the vertical axis.
The clamping mechanism 48 includes a pair of clamps 62, 64, spaced-apart along the arm 52. One clamp 62 is typical. It comprises a pair of jaws 66, 68 that are mounted with pivot pins to the arm 52 for displacement toward and away from one another. A hydraulic cylinder 70 is attached to the arm 50, and a conventional mechanical linkage couples the hydraulic cylinder 70 to the jaws 66, 68. The linkage includes a triangular member 72 with one vertex pivoted to the piston rod (not numbered) of the hydraulic cylinder 70.
The other vertices are connected with link arms to each of the jaws 66, 68.
Contraction of the hydraulic cylinder 70 causes the jaws 66, 68 to be drawn ' .
.
~, ' ' ' ' ' ' ~ , together to gl ip a pipe (as shown in fig. 3 ancl 4). E~xp~msion ol the hydraulic cylincler 7() pivots the jaw~ 66, 68 to a releasing orient~ltion (not illustrat~d) clear of the pipe. The other clamp 64 i~ operated simultaneollsly in the same manner, Ising a similar hydraulic cylinder (not ill~lstrated) and similar linkage 5 (not illustratecl) located in the arm 52.
A~l elevator 7~ displaces the carriage 32 along the guide 22 between a bottom-most position (illustrated in fig. 1) and various higher positions. The elevator 74 is a continuous chain drive with upper and lower chain sprockets rotatably mouneed to the guide 22. One end of the chain is 10 fixed to the frame 34 of the carriage 32. The upper sprocket is rotated by a hydraulic motor to raise or lower the carriage 32. The elevator 74 may have a loading-bearing capacity of about 8 tons. Alternatively, a winch and wire rope can be used to raise and lower the carriage 32 in a conventional manner.
A conveyor 76 of the endless belt type is aligned with or directed 15 toward the guide 22. The conveyor 76 has a pair of chain wheels at either end(only chain wheels 78, 80 apparent in fig. 1) that carry two endless runs of chain (only chain 82 apparent in fig. 1) in a generally horizontal orientation, parallel and spaced apart. The chains carry steel slats that have polyurethane coatings to reduce friction and noise. The slats are simply connected 20 transversely between the chains, slightly spaced-apart from one another alongthe length of the chains. A conventional motor (not illustrated) drives the chain wheels to convey pipe between a storage area (not illustrated) and the drill floor 14, through a Vee door 88 of the derrick 12 facing toward the conveyor 76.
That Vee door 88 is substantially identical to the Vee door 90 more clearly 25 illustrated in the various views. The conveyor 76 has a free-wheeling mode ofoperation, when de-clutched from the motor. The conveyor 76 is used not only to transfer pipe to and from the drill floor 14, but also to assist in raising and ;' : ' . ~ ' ~ `~
'' :
: - .
.
lowel ing hcLIvier d()wn~ ole pipcs, as cxplaine(l more fully below. Several alignecl conv~ys may in ~ct be llsed to convey pipe to and ~rom more distant pipe lines aboard the drill rig l~), being remove(l or aclcled as required.
Figs. I ancl 2 illustrate variolls stages in hanclling a heavy well casing 92. In fig. 1, the well casing 92 has been conveyed horizontally ~rom the storage area until one end portion 9~ has erltered the Vee door 88. The clamping mechanism 48 has been pivoted downw~rdly and the carriage 32 has been lowered to locate the clamps 62, 64 about the casing end portion 94. The hydraulic cylinders associated with the clamping mechanisrn 48 are then actuated to grip the casing end portion 94. The conveyor 76 is placed in its free-wheeling mode.
The elevator 74 is then actuated to draw the carriage 32 upwardly along the guide 22. This raises the casing end portion 94 through various position shown in phantom outline ;n fig. 2. The opposing lower end portion 98 of the casing 92 travels along the free-wheeling conveyor 76 toward the guide 22. The conveyor 76 ensures that the lower end portion 98 travels laterally with little resistance in response to raising of the other casing end portion 96. With further raising of the casing end portion 96, the well casing 92 assumes steeper inclinations, as the lower end portion 96 progresses toward the Vee door 88. Eventually, the casing 92 is suspended above the drill floor ~ .
14 and its centre of gravity is positioned below the horizontal pivot joint formed between the swivel 38 and the clamping mechanism 48. The hydraulic cylinder 58 connected between the swivel 38 and the -frame of the clamping mechanism 48 may then be actuated to orient the well casing 92 in a vertical orientation (as shown in solid outline in fig. 2). The swivel 38 may then be rotated by actuating an appropriate one of the pair of hydraulic cylinders 44, 46 to locatethe well casing 92 over the opening 18 of the rotary table 16. The well casing 92 may then be handled in a conventional m~mner.
, ~ - . --.
,. : ~` ':
Figs. l ancl 2 shoul~l be examined and compared with prior art proposals. It will be apparent that the maximum moment that the hydrawlic cylinder 58 m~lst accommoclate arises when the well casing 92 is vertically oriented. That moment is comparatively ~mall.
Heavy down-hole pipe can be removed from a pipe string by essentially reversing the steps described immediately above. The conveyor 76 is partic-llarly ~lseful in such operations. During removal, the lower end of the suspended pipe must eventually contact a horizontal surface. The inclination of the pipe upon contact will be substantially the steep inclination of the well casing 92 as suspended and allowed to swing under its own weight. Friction between the lower end of the pipe and the surface may impede lateral displacement. The i~ree-wheeling conveyor 76, however, encourages the req~lired lateral movement. An immediate alternative is to operate the conveyor 76 under power to produce the required lateral movement. The speed of the conveyor 76 may be synchronized with the vertical speed of the carriage 32 (both during raising and lower of the pipe). A programmable logic controller may be used to coordinate operating speeds. A variety of powered conveyors may be used for such purposes. Another alternative is to form an inclined surface extending outwardly from the Vee door 88 and leading to a horizontal conveyor (comparable to a surface presented by a conventional catwalk).
However, the physical geometry of the drill rig may determine the preferred approach.
Lighter drill pipe may by carried by the conveyor 76 in a horizontal orientation until one pipe end has entered through the Vee door 88 and located upon the drill floor 14. The clamping mechanism 48 may then be engaged with the pipe end, and the hydraulic cylinder 58 operated to maintain tothe pipe in its hori~ontal orientation while the entirety of the pipe 100 is simply raised toward the top of Vee door 88. It may then be rotated directly through 90 : . . .. .
,- , cleglee~li, placing thc clrill pipe in 1 VertiCII orierltation above the drill floor 14.
It will be apprecilted that particular embocliments of the invention have been clescribed and that modificcltions may be made therein without departing from the spirit of the invention or necessarily departing fromS the scope of the appended claims.
. .. ..
: . : .:
' '
FIEL,D OF THE INVENTION
The invention relates generally to installation of pipes in drill holes, and more p~atic~l1arly, to machinery and methods for displacing a large 5 down-hole pipe from a horizontal orientation proximate to a drill floor to a vertical orientations above the drill floor.
BACKGROUND OF THE INVENTION
The invention has particular application to drill rigs. These commonly have a derrick which may have a cladding surro-mding the drill floor 10 perimeter and protecting workers from hostile environrnents. The drill floor m~y be accessed through what is commonly referred to as a "Vee door", a door shaped like an inverted "V". Pipes are pushed or otherwise conveyed to the Vee door along a generally horizontal structure commonly referred to as a "catwalk". These pipes may be drill collars, drill pipes, well casing, production 15 tubing and the like that are to be installed in a pipeline or well lining. The catwalk may have an inclined surface leading upwardly to the drill floor. The pipe must be moved from a generally horizontal orientation on the catwalk to a vertical orientation within the derrick and positioned above a rotary table in the drill floor or over a vertical storage hole referred to as a "mouse hole". Drill20 floor operators or other machinery then takes over the handling of the pipe..Transferring a section of pipe from the catwalk to the drill floor and vertically orienting the pipe is a hcazardous job. A section of well casing,for example, may weigh several tons. A common practice involves locating a wire rope around one end of the pipe. An elevator acting on the rope then hauls 25 the pipe through the Vee door and upwardly to a vertical orientation. The lower end of the pipe, which drags along the catwalk and drill floor, is controlled with another wire rope, which may be payed out by a winch or often by hand. Such :, opcriltion.~ ~Ir~ ~im~-con~sumirlg .m(l involve con.siclerable labour cost. Thèy can potcntially ccause seriou~s worker injLIry.
An alternative to s~lch opcrations W~IS proposed by M~I Maritime Hydraulics. That alterllative involves securing a large boom to an upper scctionS of the derrick with essentially a lclrge clevis~ A pair of arms are pivotecl to the base of the delTick and rise to meet the boorn They f~sten to a carriage that displaces along the boom, and appropriate displacement of the carriage causes the lower end of the boom to pivot between the drill tloor and a pipe storage area. A parallelograrn linkage carrying pipe clamps and operated with hydraulic 10 cylinders extends from the boom to grasp a hori~ontal pipe in the storage area.
The boom and linkage then translate ancl rotate the pipe to a vertical orientation above the drill floor. The proposed system is massive ancl cannot be operated through a conventional Vee door. At least one side of the derrick must be fully open to the elements.
Another alternative is suggested in the September, 1991 newsletter of the Institute of Mecharlical lEngineers entitled "Offshore Engineering News". It involves a single large boom mounted directly to the drill floor. The boom pivots about its base between vertical and horizontal orientations. The boom carries pipe clamps that engage a hori~ontal length of 20 pipe in a storage area and then pivots directly to a vertical position, orienting the pipe vertically above the drill floor. The range of movement once again prohibits use with a Vee door. Also, the equipment would have to be sized to accommodate very large forces, particularly moments, given the manner in which pipe is rotated. ;
Another system has been proposed by Varco BJ Drilling Systems and does attempt to clear a conventional Vee door. The Varco system involves a single boom with a large transverse arm at its base. The arm is pivotmounted to the drill rig. A hydraulic cylinder connected to the arm pivots the .. ~ . . ' . ~
boom between horizont.ll ancl vertical orientations. With the boorn in its horizontal orientation, an elevator ccm lilt and locate a pipe within clamps that are spaced-apart along the boom. The boom is thell pivoted to its vertical orientcation, simultaneously orienting the pipe h1 a vertical or;entation ~bove the S drill floor. The system does re4uire a deep pocket to be formed in the drill floor to receive a lower section of the boom during the swinging action. Becawse of the manner in which pipe swings, the mechanism must be sized to handle large moments. Another consideration is that pipe nlllst be presented to the system with the male pipe end leading. This is the reverse of the normal convention forl0 manual handling of pipe. In the event of a breakdown or power failure, the pipes must be reversed, which causes considerably delay.
SUMMARY OF THE INVENTION
In one aspect, the invention provides apparatus for displacing a down-hole pipe from a generally horizontal orientation to a substantially vertical 15 suspended orientation. The term "down-hole pipe" should be understood as designating a drill pipe, a drill collar, a well casing or production tubing, a pipe adapted for installation in a subsurface drill bore as part of a pipeline (drillstring, production tubing string or well liner).
The apparatus comprises a carriage and a guide :t`or directing 20 movement of the carriage along a generally vertical path. The apparatus also includes a clamping mechanism for receiving and gripping one end portion of the pipe. The clamping mechanisrm is connected to the carriage such that it travels vertically with the carriage and pivots in a vertical plane relative to the carriage. Means are provided for displacing the carriage upwardly along the 25 guide thereby to suspend the gripped pipe. Means are also provided for pivoting the clamping mechanism relative to the carriage thereby to orient the suspended pipe in a substantially vertical orientation.
The apparatus may be supported from a derrick proximate to a ^ .: ~ ' ~' ' ' ' ' .
, , ' Vee cloor and a rotary tabl~ commollly associ.lte(l with (Irilling operations. The pipe m~y be conveyecl horizontally Intil the one end of the pipe enters the Veedoor. The appal atLIs may then engage, raise and pivot the pipe to the req~tiredvertical orientation. With larger pipe, the pipe can be allowecl to swing lnder its 5 own weight progressively dllring passage through the Vee door as the one end is r~ised. When lifted fillly from the conveyor or s-lpporting surface, the centre of gravity of the pipe tends to be positioned immediately below the horizontal pivoting axis of the clamping mechanism. The pipe need only be rotated through a relatively small angle to achieve a vertical orientation, and becallse of 10 the location of the center of gravity a relatively small moment must be accommodated by the means pivoting the clamping mechanism. This of course reduces the size of equipment re4uired for such purposes, such hydraulic cylinders. An alternative method of operating the apparatus with lighter pipe isdescribed below.
Various aspects of the invention will be apparent from a description below of a pre-ferred embodiments and will be more specifically defined in the appended claims.
DESCRIPl`ION OF THE DRAWINGS
The invention will be better understood with reference to 20 drawings in which:
fig. I is a diagrammatic, fragmented elevational view of a derrick on a drill platform and apparatus for handling a down-hole pipe;
fig. 2 is a view comparable to that of fig. 1 showing various ~ ;
stages in the raising of a pipe from a horizontal orientation on a conveyor to a25 vertical orientation over a drill floor;
fig. 3 is a fragmented perspective view of a carriage and clamping mechanism used to raise and lower the pipe;
- -.. , .... . ~ . - . , :
'~ , .
.
l`i~. 4 i~ ;eclion/ll vi~w downwarclly through the carriage ~howing how the ck~ ping mechanism mc1y be pivoted about a vertical axis to locate thc pipe over either a rotary table or a mollse holc; and, Fig. 5 is a side elevation with components of the carriage 5 extensivel-y fragmentecl, detailing mounting of the cLuriage to a guide and mounting of a swivel to a carriage frame.
DESCRIPTION OF PREFERRE3V EMBODIM~NTS
Reference is made to fig. 1 which illustrates portions of a drill rig l0. A derrick 12 (shown in phantom outline) extends upwardly from the drill floor 14. The drill floor 14 has a rotary table 16 (ill~lstrated in fig. 4) with an opening 18 through which a clrill string, well casing or production tubing might be extended. Proximate to the rotary table 16 is ~ mouse hole 20 in which drill pipe is often stored in a verLical orientation in preparation for installation into a drill string. A mechanical roughneck (not illustrated) would15 typically be used to install or remove sections of down-hole pipe from the pipe string. An elevator ~not illustrated) comprising a crown block and a travelling block is normally used to support the tubing string. The features ornitted are entirely conventional, and their use with the apparatus oF the invention will beapparent to those skilled in the art.
Machinery for displacing down-hole pipe is attached to the derrick 12 proximate to the rotary table 16. The machinery includes a guide 22 that is basically a pair of vertical I-beams 24, 26 in parallel relationship. These are supported, suspended above the drill floor 14, by struts joining the I-beams24, 26 to the derrick 12. Two exemplary struts 28, 30 are specifically indicated25 in fig. 4. The guide 22 defines a vertical track -for displacement of a carriage 32. The carriage 32 has two principal parts: a rectangular frame 34 with wheels 36 that are fitted into the channels of the I-beams 24, 26; and a swivel 38. Theswivel 38 is mounted to the frame 34 with bearings 40, 42 to permit pivoting ' ~ ' ' ' :
,: ' ' ' -- , .
aboLIt a gellelally vcltical ~l~iS. A pair Or hydralllic cylinders 44,46 connected between the carri~lge 32 I;ame 34 ancl the swivel 38, one to either sid~ oî the swivel 38, can bc operatecl incli~ ally to pivot the swivel 38 in opposing directions.
A pipe clamping mechanism 48 is connected to the carriage 32.
The clamping mechanism 48 includes a rigid fiame comprising arms 50,52 at right-angles to one another and a reinforcing strut 54 extending between the arms S0,52. A c]evis 56 ~orms a pivot joint between one arm 50 and the swivel 38 that permits the clamping mechanisrn 48 to pivot about a horizontal axis. A hydraulic cylinder S$ is connected with a clevis (not indicated) to the base of the swivel 38 and through a triangular plate 60 to the arm 50. When actuated, the hydraulic cylinder 58 pivots the entire clamping mechanism 48 through a range of about 90 degrees The clamping mechanism 48 consequently travels vertically with the carriage 32 and pivots about a generally horizontal axis relative to the carriage 32. As mentioned above, the swivel 38 itself pivots, permitting the clamping mechcmism 48 to pivot about a vertical axis relative to the carriage frame 34. The pair of hydraulic cylinders 44,46 connecting the swivel 38 to the carriage frame 34 can pivot the clamping mechanism 48 through a range of about 30 degrees about the vertical axis.
The clamping mechanism 48 includes a pair of clamps 62, 64, spaced-apart along the arm 52. One clamp 62 is typical. It comprises a pair of jaws 66, 68 that are mounted with pivot pins to the arm 52 for displacement toward and away from one another. A hydraulic cylinder 70 is attached to the arm 50, and a conventional mechanical linkage couples the hydraulic cylinder 70 to the jaws 66, 68. The linkage includes a triangular member 72 with one vertex pivoted to the piston rod (not numbered) of the hydraulic cylinder 70.
The other vertices are connected with link arms to each of the jaws 66, 68.
Contraction of the hydraulic cylinder 70 causes the jaws 66, 68 to be drawn ' .
.
~, ' ' ' ' ' ' ~ , together to gl ip a pipe (as shown in fig. 3 ancl 4). E~xp~msion ol the hydraulic cylincler 7() pivots the jaw~ 66, 68 to a releasing orient~ltion (not illustrat~d) clear of the pipe. The other clamp 64 i~ operated simultaneollsly in the same manner, Ising a similar hydraulic cylinder (not ill~lstrated) and similar linkage 5 (not illustratecl) located in the arm 52.
A~l elevator 7~ displaces the carriage 32 along the guide 22 between a bottom-most position (illustrated in fig. 1) and various higher positions. The elevator 74 is a continuous chain drive with upper and lower chain sprockets rotatably mouneed to the guide 22. One end of the chain is 10 fixed to the frame 34 of the carriage 32. The upper sprocket is rotated by a hydraulic motor to raise or lower the carriage 32. The elevator 74 may have a loading-bearing capacity of about 8 tons. Alternatively, a winch and wire rope can be used to raise and lower the carriage 32 in a conventional manner.
A conveyor 76 of the endless belt type is aligned with or directed 15 toward the guide 22. The conveyor 76 has a pair of chain wheels at either end(only chain wheels 78, 80 apparent in fig. 1) that carry two endless runs of chain (only chain 82 apparent in fig. 1) in a generally horizontal orientation, parallel and spaced apart. The chains carry steel slats that have polyurethane coatings to reduce friction and noise. The slats are simply connected 20 transversely between the chains, slightly spaced-apart from one another alongthe length of the chains. A conventional motor (not illustrated) drives the chain wheels to convey pipe between a storage area (not illustrated) and the drill floor 14, through a Vee door 88 of the derrick 12 facing toward the conveyor 76.
That Vee door 88 is substantially identical to the Vee door 90 more clearly 25 illustrated in the various views. The conveyor 76 has a free-wheeling mode ofoperation, when de-clutched from the motor. The conveyor 76 is used not only to transfer pipe to and from the drill floor 14, but also to assist in raising and ;' : ' . ~ ' ~ `~
'' :
: - .
.
lowel ing hcLIvier d()wn~ ole pipcs, as cxplaine(l more fully below. Several alignecl conv~ys may in ~ct be llsed to convey pipe to and ~rom more distant pipe lines aboard the drill rig l~), being remove(l or aclcled as required.
Figs. I ancl 2 illustrate variolls stages in hanclling a heavy well casing 92. In fig. 1, the well casing 92 has been conveyed horizontally ~rom the storage area until one end portion 9~ has erltered the Vee door 88. The clamping mechanism 48 has been pivoted downw~rdly and the carriage 32 has been lowered to locate the clamps 62, 64 about the casing end portion 94. The hydraulic cylinders associated with the clamping mechanisrn 48 are then actuated to grip the casing end portion 94. The conveyor 76 is placed in its free-wheeling mode.
The elevator 74 is then actuated to draw the carriage 32 upwardly along the guide 22. This raises the casing end portion 94 through various position shown in phantom outline ;n fig. 2. The opposing lower end portion 98 of the casing 92 travels along the free-wheeling conveyor 76 toward the guide 22. The conveyor 76 ensures that the lower end portion 98 travels laterally with little resistance in response to raising of the other casing end portion 96. With further raising of the casing end portion 96, the well casing 92 assumes steeper inclinations, as the lower end portion 96 progresses toward the Vee door 88. Eventually, the casing 92 is suspended above the drill floor ~ .
14 and its centre of gravity is positioned below the horizontal pivot joint formed between the swivel 38 and the clamping mechanism 48. The hydraulic cylinder 58 connected between the swivel 38 and the -frame of the clamping mechanism 48 may then be actuated to orient the well casing 92 in a vertical orientation (as shown in solid outline in fig. 2). The swivel 38 may then be rotated by actuating an appropriate one of the pair of hydraulic cylinders 44, 46 to locatethe well casing 92 over the opening 18 of the rotary table 16. The well casing 92 may then be handled in a conventional m~mner.
, ~ - . --.
,. : ~` ':
Figs. l ancl 2 shoul~l be examined and compared with prior art proposals. It will be apparent that the maximum moment that the hydrawlic cylinder 58 m~lst accommoclate arises when the well casing 92 is vertically oriented. That moment is comparatively ~mall.
Heavy down-hole pipe can be removed from a pipe string by essentially reversing the steps described immediately above. The conveyor 76 is partic-llarly ~lseful in such operations. During removal, the lower end of the suspended pipe must eventually contact a horizontal surface. The inclination of the pipe upon contact will be substantially the steep inclination of the well casing 92 as suspended and allowed to swing under its own weight. Friction between the lower end of the pipe and the surface may impede lateral displacement. The i~ree-wheeling conveyor 76, however, encourages the req~lired lateral movement. An immediate alternative is to operate the conveyor 76 under power to produce the required lateral movement. The speed of the conveyor 76 may be synchronized with the vertical speed of the carriage 32 (both during raising and lower of the pipe). A programmable logic controller may be used to coordinate operating speeds. A variety of powered conveyors may be used for such purposes. Another alternative is to form an inclined surface extending outwardly from the Vee door 88 and leading to a horizontal conveyor (comparable to a surface presented by a conventional catwalk).
However, the physical geometry of the drill rig may determine the preferred approach.
Lighter drill pipe may by carried by the conveyor 76 in a horizontal orientation until one pipe end has entered through the Vee door 88 and located upon the drill floor 14. The clamping mechanism 48 may then be engaged with the pipe end, and the hydraulic cylinder 58 operated to maintain tothe pipe in its hori~ontal orientation while the entirety of the pipe 100 is simply raised toward the top of Vee door 88. It may then be rotated directly through 90 : . . .. .
,- , cleglee~li, placing thc clrill pipe in 1 VertiCII orierltation above the drill floor 14.
It will be apprecilted that particular embocliments of the invention have been clescribed and that modificcltions may be made therein without departing from the spirit of the invention or necessarily departing fromS the scope of the appended claims.
. .. ..
: . : .:
' '
Claims (14)
1. Apparatus for displacing a down-hole pipe from a generally horizontal orientation to a substantially vertical suspended orientation, comprising:
a carriage;
a guide for guiding movement of the carriage along a generally vertical path;
a clamping mechanism for receiving and gripping an end portion of the pipe;
means connecting the clamping mechanism to the carriage such hat the clamping mechanism travels vertically with the carriage and pivots at least about a generally horizontal axis relative to the carriage;
means for displacing the carriage upwardly along the guide thereby to suspend the gripped pipe; and, means for pivoting the clamping mechanism about the generally horizontal axis thereby to orient the suspended pipe in a substantially vertical orientation.
a carriage;
a guide for guiding movement of the carriage along a generally vertical path;
a clamping mechanism for receiving and gripping an end portion of the pipe;
means connecting the clamping mechanism to the carriage such hat the clamping mechanism travels vertically with the carriage and pivots at least about a generally horizontal axis relative to the carriage;
means for displacing the carriage upwardly along the guide thereby to suspend the gripped pipe; and, means for pivoting the clamping mechanism about the generally horizontal axis thereby to orient the suspended pipe in a substantially vertical orientation.
2. The apparatus of claim 1 in which:
the carriage comprises a plurality of wheels; and, the guide structure define a track receiving the wheels.
the carriage comprises a plurality of wheels; and, the guide structure define a track receiving the wheels.
3. The apparatus of claim 1 in which:
the clamping mechanism comprises a rigid frame attached with a pivot connection to the carriage;
the means for pivoting the clamping mechanism about the generally horizontal axis comprise a hydraulic cylinder connected between the carriage and the frame.
the clamping mechanism comprises a rigid frame attached with a pivot connection to the carriage;
the means for pivoting the clamping mechanism about the generally horizontal axis comprise a hydraulic cylinder connected between the carriage and the frame.
4. The apparatus of claim 3 in which the clamping mechanism comprises:
a pair of jaws;
means mounting the jaws to the frame for pivoting movement towards and away from one another; and, means mounted on the frame for pivoting the jaws relative to one another between a gripping orientation about the end portion of the pipe and a releasing orientation.
a pair of jaws;
means mounting the jaws to the frame for pivoting movement towards and away from one another; and, means mounted on the frame for pivoting the jaws relative to one another between a gripping orientation about the end portion of the pipe and a releasing orientation.
5. The apparatus of claim 4 in which the means for pivoting the jaws comprise:
a hydraulic cylinder mounted on the frame;
a linkage connecting the hydraulic cylinder to the jaws thereby to pivot the pair of jaws between the gripping and released orientations in response to actuation of the hydraulic cylinder.
a hydraulic cylinder mounted on the frame;
a linkage connecting the hydraulic cylinder to the jaws thereby to pivot the pair of jaws between the gripping and released orientations in response to actuation of the hydraulic cylinder.
6. The apparatus of claim 1 comprising a conveyor with an endless belt in a generally horizontal orientation, the conveyor being positioned relative to the guide to support an opposite end portion of the pipe while the one end portion of the pipe is raised by upward displacement of the carriage and to direct the one opposite end portion of the pipe toward the guide during such raising.
7. The apparatus of claim 1 in which the carriage comprises:
a first carriage portion fitted to the guide;
a second carriage portion, the clamping mechanism being connected to the second carriage portion for pivoting about the generally horizontal axis and the means for pivoting the clamping mechanism about the generally horizontal axis being connected between the second carriage portion and the clamping mechanism;
means permitting the second carriage portion to pivot about a generally vertical axis relative to the first carriage portion; and, means for pivoting the second carriage portion relative to the first carriage portion about the generally vertical axis.
a first carriage portion fitted to the guide;
a second carriage portion, the clamping mechanism being connected to the second carriage portion for pivoting about the generally horizontal axis and the means for pivoting the clamping mechanism about the generally horizontal axis being connected between the second carriage portion and the clamping mechanism;
means permitting the second carriage portion to pivot about a generally vertical axis relative to the first carriage portion; and, means for pivoting the second carriage portion relative to the first carriage portion about the generally vertical axis.
8. In an drilling installation, the installation comprising a rotary table with an opening for receiving pipe, apparatus for displacing a down-hole pipe from a generally horizontal orientation to a substantially vertical suspended orientation proximate to the opening, comprising:
a carriage;
a guide positioned proximate to the rotary table for guiding movement of the carriage along a generally vertical path;
a clamping mechanism for receiving and gripping an end portion of the pipe;
means connecting the clamping mechanism to the carriage such that the clamping mechanism travels vertically with the carriage and pivots at least about a generally horizontal axis relative to the carriage;
means for displacing the carriage upwardly along the guide thereby to suspend the gripped pipe; and, means for pivoting the clamping mechanism about the generally horizontal axis thereby to orient the suspended pipe in a substantially vertical orientation.
a carriage;
a guide positioned proximate to the rotary table for guiding movement of the carriage along a generally vertical path;
a clamping mechanism for receiving and gripping an end portion of the pipe;
means connecting the clamping mechanism to the carriage such that the clamping mechanism travels vertically with the carriage and pivots at least about a generally horizontal axis relative to the carriage;
means for displacing the carriage upwardly along the guide thereby to suspend the gripped pipe; and, means for pivoting the clamping mechanism about the generally horizontal axis thereby to orient the suspended pipe in a substantially vertical orientation.
9. The apparatus of claim 8 in which:
the carriage comprises a plurality of wheels; and, the guide structure define a track receiving the wheels.
the carriage comprises a plurality of wheels; and, the guide structure define a track receiving the wheels.
10. The apparatus of claim 8 in which:
the clamping mechanism comprises a rigid frame attached with a pivot connection to the carriage;
the means for pivoting the clamping mechanism about the generally horizontal axis comprise a hydraulic cylinder connected between the carriage and the frame.
the clamping mechanism comprises a rigid frame attached with a pivot connection to the carriage;
the means for pivoting the clamping mechanism about the generally horizontal axis comprise a hydraulic cylinder connected between the carriage and the frame.
11. The apparatus of claim 10 in which the clamping mechanism comprises:
a pair of jaws;
means mounting the jaws to the frame for pivoting movement towards and away from one another; and, means mounted on the frame for pivoting the jaws relative to one another between a gripping orientation about the end portion of the pipe and a releasing orientation.
a pair of jaws;
means mounting the jaws to the frame for pivoting movement towards and away from one another; and, means mounted on the frame for pivoting the jaws relative to one another between a gripping orientation about the end portion of the pipe and a releasing orientation.
12. The apparatus of claim 11 in which the means for pivoting the jaws comprise:
a hydraulic cylinder mounted on the frame;
a linkage connecting the hydraulic cylinder to the jaws thereby to pivot the pair of jaws between the gripping and released orientations in response to actuation of the hydraulic cylinder.
a hydraulic cylinder mounted on the frame;
a linkage connecting the hydraulic cylinder to the jaws thereby to pivot the pair of jaws between the gripping and released orientations in response to actuation of the hydraulic cylinder.
13. The apparatus of claim 8 comprising a conveyor with an endless belt in a generally horizontal orientation, the conveyor being positioned relative to the guide to support an opposite end portion of the pipe while the one end portion of the pipe is raised by upward displacement of the carriage and to direct the one opposite end portion of the pipe toward the guide during such raising ofthe pipe.
14. The apparatus of claim B in which the carriage comprises:
a first carriage portion fitted to the guide;
a second carriage portion, the clamping mechanism being connected to the second carriage portion for pivoting about the generally horizontal axis and the means for pivoting the clamping mechanism about the generally horizontal axis being connected between the second carriage portion and the clamping mechanism;
means permitting the second carriage portion to pivot about a generally vertical axis relative to the first carriage portion; and, means for pivoting the second carriage portion relative to the first carriage portion about the generally vertical axis thereby to swing the pipe when suspended in the vertical orientation over the opening.
a first carriage portion fitted to the guide;
a second carriage portion, the clamping mechanism being connected to the second carriage portion for pivoting about the generally horizontal axis and the means for pivoting the clamping mechanism about the generally horizontal axis being connected between the second carriage portion and the clamping mechanism;
means permitting the second carriage portion to pivot about a generally vertical axis relative to the first carriage portion; and, means for pivoting the second carriage portion relative to the first carriage portion about the generally vertical axis thereby to swing the pipe when suspended in the vertical orientation over the opening.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2060123 CA2060123A1 (en) | 1992-01-28 | 1992-01-28 | Device for handling down-hole pipes |
| PCT/CA1993/000024 WO1993015303A1 (en) | 1992-01-28 | 1993-01-28 | Apparatus for handling down-hole pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2060123 CA2060123A1 (en) | 1992-01-28 | 1992-01-28 | Device for handling down-hole pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2060123A1 true CA2060123A1 (en) | 1993-07-29 |
Family
ID=4149166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2060123 Abandoned CA2060123A1 (en) | 1992-01-28 | 1992-01-28 | Device for handling down-hole pipes |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA2060123A1 (en) |
| WO (1) | WO1993015303A1 (en) |
Cited By (1)
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| CN103452503A (en) * | 2013-09-12 | 2013-12-18 | 中煤科工集团西安研究院有限公司 | Drill rod column positioning system used for rod feeding device |
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| DE102004004315A1 (en) * | 2004-01-28 | 2005-08-11 | Max Streicher Gmbh & Co. Kg Aa | Apparatus and method for handling objects on a drilling rig |
| US7802636B2 (en) | 2007-02-23 | 2010-09-28 | Atwood Oceanics, Inc. | Simultaneous tubular handling system and method |
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| US8011426B1 (en) | 2009-01-26 | 2011-09-06 | T&T Engineering Services, Inc. | Method of gripping a tubular with a tubular gripping mechanism |
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| US9556689B2 (en) | 2009-05-20 | 2017-01-31 | Schlumberger Technology Corporation | Alignment apparatus and method for a boom of a pipe handling system |
| US8192128B2 (en) | 2009-05-20 | 2012-06-05 | T&T Engineering Services, Inc. | Alignment apparatus and method for a boom of a pipe handling system |
| US8215888B2 (en) | 2009-10-16 | 2012-07-10 | Friede Goldman United, Ltd. | Cartridge tubular handling system |
| SE535586C2 (en) | 2010-12-30 | 2012-10-02 | Atlas Copco Rocktech Ab | Device and method for handling drill string components and drill rig |
| NO20110638A1 (en) * | 2011-04-29 | 2012-10-30 | Seabed Rig As | Rorhandteringsmaskin |
| US9091128B1 (en) | 2011-11-18 | 2015-07-28 | T&T Engineering Services, Inc. | Drill floor mountable automated pipe racking system |
| US9476267B2 (en) | 2013-03-15 | 2016-10-25 | T&T Engineering Services, Inc. | System and method for raising and lowering a drill floor mountable automated pipe racking system |
| US9016004B2 (en) * | 2013-03-15 | 2015-04-28 | Woolslayer Companies, Inc. | Apparatus for and method of folding a mast or derrick |
| NO337367B1 (en) * | 2013-10-22 | 2016-03-29 | Mhwirth As | Lifting arm assembly and method for lifting a pipe. |
| CA3005465A1 (en) * | 2015-11-16 | 2017-05-26 | Schlumberger Canada Limited | Tubular delivery arm for a drilling rig |
| CA3008397A1 (en) | 2015-11-16 | 2017-05-26 | Schlumberger Canada Limited | Automated tubular racking system |
| WO2017087595A1 (en) | 2015-11-17 | 2017-05-26 | Schlumberger Technology Corporation | High trip rate drilling rig |
| US11136836B2 (en) | 2016-04-29 | 2021-10-05 | Schlumberger Technology Corporation | High trip rate drilling rig |
| US10927603B2 (en) | 2016-04-29 | 2021-02-23 | Schlumberger Technology Corporation | High trip rate drilling rig |
| US11118414B2 (en) | 2016-04-29 | 2021-09-14 | Schlumberger Technology Corporation | Tubular delivery arm for a drilling rig |
| US10597954B2 (en) | 2017-10-10 | 2020-03-24 | Schlumberger Technology Corporation | Sequencing for pipe handling |
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|---|---|---|---|---|
| FR2065728B1 (en) * | 1969-10-10 | 1974-10-31 | Chevron Res | |
| US3655071A (en) * | 1970-05-27 | 1972-04-11 | Byron Jackson Inc | Horizontal pipe racking and handling apparatus |
| NO156699B (en) * | 1980-03-17 | Bj-Hughes Inc. | STEERING HANDLING APPLIANCE. | |
| IT1176582B (en) * | 1984-08-08 | 1987-08-18 | Re Mo Sa Spa | EQUIPMENT TO TRANSFER PERFORATION RODS BETWEEN A WAREHOUSE OF RODS AND THE ROTATING HEAD OF A PERFORATING MACHINE AND VICEVERSA |
-
1992
- 1992-01-28 CA CA 2060123 patent/CA2060123A1/en not_active Abandoned
-
1993
- 1993-01-28 WO PCT/CA1993/000024 patent/WO1993015303A1/en active Search and Examination
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452503A (en) * | 2013-09-12 | 2013-12-18 | 中煤科工集团西安研究院有限公司 | Drill rod column positioning system used for rod feeding device |
| CN103452503B (en) * | 2013-09-12 | 2015-05-27 | 中煤科工集团西安研究院有限公司 | Drill rod column positioning system used for rod feeding device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1993015303A1 (en) | 1993-08-05 |
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