US20150176349A1 - Pipe joint apparatus and method - Google Patents
Pipe joint apparatus and method Download PDFInfo
- Publication number
- US20150176349A1 US20150176349A1 US14/420,242 US201314420242A US2015176349A1 US 20150176349 A1 US20150176349 A1 US 20150176349A1 US 201314420242 A US201314420242 A US 201314420242A US 2015176349 A1 US2015176349 A1 US 2015176349A1
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- United States
- Prior art keywords
- pipe
- box
- joint apparatus
- stabbing guide
- lubricator
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- Abandoned
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- 230000001050 lubricating effect Effects 0.000 claims 1
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- 238000004891 communication Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
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Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- 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
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
-
- 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
- E21B19/20—Combined feeding from rack and connecting, e.g. automatically
-
- 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
- E21B19/24—Guiding or centralising devices for drilling rods or pipes
Definitions
- the present disclosure relates generally to apparatus and methods for making connections between pipes. More specifically, the present disclosure relates to an apparatus and method for guiding one pipe end into another.
- drill pipes are also removed from the drill string, e.g., in order to change the configuration of a tool, such as a drill bit, in the drill string.
- Drill pipes are typically added to or removed from the drill string in the form of “pipe stands.”
- a pipe stand is made up of multiple connected pipes.
- the jaws are made of a material softer than steel.
- FIG. 3 shows a top view of the pipe joint apparatus, with some related mechanisms removed.
- FIG. 9 shows a cross-section of the lubricator in a working position.
- FIG. 12 shows a top view of the pipe joint apparatus with centralizer arms of the centralizer mechanism in a non-constraining position.
- FIG. 14A-14L illustrates a process of making a pipe connection.
- FIG. 3 shows the stabbing guide 118 and lubricator 120 in a non-working position.
- the rotary actuator 134 can be operated to rotate the lubricator 120 from the non-working position to an intermediate position where the lubricator 120 is above and centered with the box 112 (see FIG. 4 ).
- the box 112 is covered by the lubricator 120 .
- the linear actuator 124 see FIG.
- the actuator 212 may be a linear actuator, such as a trunnion cylinder, whose linear motion will cause the ears 206 a, 206 b to be rotated about the pivot joints 210 a, 210 b.
- the actuator 212 can respond to external control signals, which would allow remote or automated control of rotation of the ears 206 a, 206 b.
- the external control signals may take on any suitable form, e.g., mechanical, electrical, or radio.
- the normal position of the jaws 200 a, 200 b is the open position.
- the jaws 200 a, 200 b are actuated to the closed position when the stabbing guide 118 is mounted on a box to provide a protective guiding function.
- the rotary actuator 314 can respond to external control signals, which would allow remote or automated control of the rotation of the shaft 310 .
- the external control signals may take on any suitable form, e.g., mechanical, electrical, or radio.
- the lower end 316 of the shaft 310 is coupled to the lower end of the drum 300 in a manner that allows the shaft 310 to be rotated within the drum 300 .
- FIG. 2 shows that the positioning mechanism 122 , stabbing guide 118 , and lubricator 120 are supported on a frame structure 140 including a base frame 142 and a vertical frame 144 .
- a bracket 146 is attached to the top of the vertical frame 144 , and the top end of the linear actuator 124 is coupled to the bracket 146 via a rotary joint 148 .
- the bottom end of the linear actuator 124 is coupled to the rotary actuator 134 , which is coupled to or mounted on the base frame 142 .
- the frame structure 140 is movable between the parked position and the use position via another translation mechanism 150 coupled to the base frame 142 .
- the translation mechanism 150 can be any suitable mechanism capable of moving an object between two positions, typically along a linear direction.
- the translation mechanism 150 can be operated remotely or automatically.
- One embodiment of the translation mechanism 150 is shown in FIGS. 1 and 10 .
- the base 190 shown in FIGS. 6A and 6B of the incorporated U.S. patent application Ser. No. 61/807,676 may be used in lieu of frame structure 140 .
- any suitable linear actuator 420 may be used to apply a push or pull force to the link 414 .
- the linear actuator 420 may be a fluid-powered piston cylinder, for example, where the piston may be coupled to the link 414 and the cylinder may be fixed to the platform 400 .
- the actuators 520 , 522 can be operated to rotate the support arms 500 , 502 towards or away from each other.
- the actuators 520 , 522 may be linear actuators, whose extensions will rotate the support arms 500 , 502 about the pivot, joints 514 , 516 . In general, rotation of the support arms 500 , 502 will be in opposing directions.
- the actuators 520 , 522 can respond to external control signals which would allow remote or automated control of rotation of the support arms 500 , 502 .
- the external control signals may take on any suitable form, e.g., mechanical, electrical, or radio.
- FIG. 15 shows a control system 600 that can be used for automatic operation of the pipe joint apparatus 100 (in FIG. 1 ).
- the control system 600 may include a controller 602 that sends signals to the actuators 124 , 134 , 212 , 314 , 420 associated with operation of the pipe joint apparatus 100 .
- the controller 602 may also receive signals from the actuators, e.g., so that the controller 602 knows that a certain action has been completed before the controller 602 issues the next command.
- the controller 602 is implemented as a computer system.
- the computer system may include a processor 604 , memory 606 , display 608 , communications interface (or device(s)) 610 , and input interface (or device(s)) 612 .
- the pipe joint apparatus 100 can be controlled remotely or automatically so that it is not necessary for personnel to be near the well center, or hole in the drill floor, while potentially dangerous operations such as stabbing are being performed.
- the stabbing guide of the pipe joint apparatus 100 is configured to sit on the rim of a box so that it protects the rim of the box while a pin is being inserted into the box. By protecting the rim of the box, the stabbing guide also protects the pin.
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- 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
A pipe joint apparatus includes a stabbing guide configured to protect a rim of a box of a first pipe end while guiding a second pipe end into the first pipe end. At least one actuator is configured to move the stabbing guide between a non-working position where the stabbing guide does not guide the second pipe end into the first pipe end and a working position where the stabbing guide guides the second pipe end into the first pipe end.
Description
- The present application is a non-provisional application claiming priority to U.S. Provisional Patent Application Ser. No. 61/680,896, filed on Aug. 8, 2012, entitled “Pipe Joint Apparatus and Method,” which is incorporated by reference herein in its entirety.
- Not applicable.
- 1. Field of the Disclosure
- The present disclosure relates generally to apparatus and methods for making connections between pipes. More specifically, the present disclosure relates to an apparatus and method for guiding one pipe end into another.
- 2. Background of the Technology
- Operations in an oil or gas well are normally carried out using tool strings made of “pipes” and other tools. The term “pipe” encompasses any tubular good that can be included in a tool string for the purpose of carrying out an operation in a well. A drill string is an example of a tool string used for drilling a well and is made up of drill pipes and other drilling-related tools. For a drilling operation, a rotary table or power drive, arranged above the well, engages the top of the drill string and rotates the drill string to drill the borehole. Periodically, drill pipes are added to the drill string, e.g., in order to make the drill string of sufficient length to reach the desired depth of the well. Periodically, drill pipes are also removed from the drill string, e.g., in order to change the configuration of a tool, such as a drill bit, in the drill string. Drill pipes are typically added to or removed from the drill string in the form of “pipe stands.” A pipe stand is made up of multiple connected pipes.
- To add a new pipe stand to a pipe in a well, the new pipe stand is suspended over the pipe in the well by an elevator and then moved vertically towards the pipe in the well by draw-works. The lowermost end of the pipe stand includes a pin, and the uppermost end of the pipe in the well includes a box. To make a connection between the pipe stand and the pipe in the well, the pin has to be stabbed into the box. After the pin has been stabbed into the box, the pipe stand can be rotated to make up the connection. However, the threads on the pin or box or the sealing areas of the pin or box can be damaged if the pin is not property aligned with the box prior to the stabbing. To prevent this damage, a manual stabbing guide can be used to guide the pin into the box. This manual operation often requires personnel to be in close proximity to the well center during the stabbing process, which may be dangerous.
- U.S. Pat. No. 7,114,235 (Jansch et al.) discloses an automated pipe joining system. In this system, a wrenching assembly is positioned above and centered with a first tubular body, and a stabbing guide is mounted on and centered with the wrenching assembly. While the stabbing guide is in the open position, a second tubular body is positioned above the first tubular body and near the center of the stabbing guide. The stabbing guide has two movable semi-circular segments. In the closed position, these semi-circular segments create a substantially circular inside diameter for at least partially encircling the second tubular body. The smallest inner diameter formed by the closed stabbing guide is slightly larger than the outside diameter of the second tubular body, which permits vertical movement of the second tubular body while substantially inhibiting horizontal movement. The pin of the second tubular body is guided into the box of the first tubular body when the stabbing guide is closed.
- In one aspect of the present disclosure, a pipe joint apparatus includes a stabbing guide configured to protect a rim of a box end of a first pipe end while guiding a second pipe end into the first pipe end. At least, one actuator is configured to move the stabbing guide between a non-working position where the stabbing guide does not guide the second pipe end into the first pipe end and a working position where the stabbing guide guides the second pipe end into the first pipe end.
- In one aspect of the present disclosure, a pipe joint apparatus includes a stabbing guide having a pipe guard that is movable between a non-working position and a working position. In the working position, the pipe guard defines a first hole, a seat above the first hole, and a second hole above the seat that is axially aligned with the first hole. At least one actuator is coupled to the pipe guard for moving the pipe guard between the non-working position and the working position.
- In one embodiment, the at least one actuator is remotely operable.
- In one embodiment, the pipe guard comprises a pair of jaws. Each of the jaws has a first inner surface, a second inner surface, and a third inner surface. The jaws are movable between an open position corresponding to the non-working position and a closed position corresponding to the working position. In the closed position, the first inner surfaces define the first hole, the second inner surfaces define the scat, and the third inner surfaces define the second hole.
- In one embodiment, the jaws are made of a material softer than steel.
- In one embodiment, the stabbing guide further comprises a retainer removably coupled to the pipe guard. The retainer is made of a harder material than that of the pipe guard and provides support to the pipe guard.
- In one embodiment, the pipe guard comprises a pair of jaws as described above and the retainer comprises a pair of retainer ring halves. Each of the jaws is coupled to one of the retainer ring halves via a removable joint, making the jaws disposable.
- In one embodiment, the at least one actuator is coupled to the pair of retainer ring halves and rotation of the pair of ring halves by the at least one actuator moves the jaws between the open and closed positions.
- In one embodiment, the pipe joint apparatus further includes a positioning mechanism coupled to the stabbing guide and operable to selectively translate and rotate the stabbing guide along and about a select axis.
- In one embodiment, the pipe joint apparatus further includes a lubricator configured to sit on a pipe end and deliver a lubricant to the pipe end. The positioning mechanism is coupled to the lubricator and operable to selectively translate and rotate the lubricator along and about the select axis.
- In one embodiment, the lubricator is spatially separated from the stabbing guide to allow selective positioning of the stabbing guide and lubricator at a select location by the positioning mechanism.
- In one embodiment, the pipe joint apparatus further includes a translation mechanism for moving the stabbing guide, the lubricator, and the positioning mechanism between a parked position where the stabbing guide and lubricator cannot be selectively positioned at the select location and a use position where the stabbing guide and lubricator can be selectively positioned at the select location.
- In another aspect of the present disclosure, a method of guiding pipes on a drill floor includes suspending a first pipe within a hole in the drill floor such that a pipe end of the first pipe protrudes above the hole. The method includes suspending a second pipe such that a pipe end of the second pipe is above the pipe end of the first pipe. The method includes positioning a stabbing guide on the pipe end of the first pipe and actuating a pipe guard of the stabbing guide to a working position where the pipe guard defines a first hole in which the pipe end of the first pipe is received, a seat above the first hole that sits on a rim of the pipe end of the first pipe, and a second hole above the seat and axially aligned with the first hole. The method includes lowering the pipe end of the second pipe through the second hole into the pipe end of the first pipe while the pipe guard protects the rim of the pipe end of the first pipe from substantial contact with the pipe end of the second pipe.
- In one embodiment, the method includes centering the second pipe with the first pipe prior to lowering the pipe end of the second pipe into the pipe end of the first pipe.
- In one embodiment, the method includes delivering a lubricant to the pipe end of the first pipe prior to positioning the stabbing guide on the pipe end of the first pipe.
- It is to be understood that both the foregoing general description and the following detailed description are exemplary of the disclosure and are intended to provide an overview or framework for understanding the nature and character of the disclosure as it is claimed. The accompanying drawings are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification. The drawings illustrate various embodiments of the disclosure and together with the description serve to explain the principles and operation of the disclosure.
- The following is a description of the figures in the accompanying drawings. The figures are not necessarily to scale, and certain features and certain views of the figures may be shown exaggerated in scale or in schematic in the interest of clarity and conciseness.
-
FIG. 1 shows a schematic of a pipe joint apparatus and related mechanisms on a drill floor in a parked position. -
FIG. 2 shows a side view of the pipe joint apparatus, with some related mechanisms removed or shown partially. -
FIG. 3 shows a top view of the pipe joint apparatus, with some related mechanisms removed. -
FIG. 4 shows the lubricator of the pipe joint apparatus in the working position. -
FIG. 5 shows the stabbing guide of the pipe joint apparatus in the working position. -
FIG. 6 shows a cross-section of the stabbing guide. -
FIG. 7A shows the stabbing guide in the working position relative to a box and a pin. -
FIG. 7B is an enlargement ofarea 7B ofFIG. 7A . -
FIG. 8 shows a top view of the pipe joint apparatus, with some related mechanism removed and the stabbing guide and lubricator coupled to a positioning mechanism. -
FIG. 9 shows a cross-section of the lubricator in a working position. -
FIG. 10 shows a translation mechanism for moving the pipe joint apparatus between parked and use positions. -
FIG. 11 shows a centralizer mechanism for centering a pipe. -
FIG. 12 shows a top view of the pipe joint apparatus with centralizer arms of the centralizer mechanism in a non-constraining position. -
FIG. 13 shows a top view of the pipe joint apparatus with centralizer arms of the centralizer mechanism in a constraining position. -
FIG. 14A-14L illustrates a process of making a pipe connection. -
FIG. 15 is a control system for the pipe joint apparatus. - In the following detailed description, numerous specific details may be set forth in order to provide a thorough understanding of embodiments of the disclosure. However, it will be clear to one skilled in the art when embodiments of the disclosure may be practiced without some or all of these specific details. In other instances, well-known features or processes may not be described in detail so as not to unnecessarily obscure the disclosure. In addition, like or identical reference numerals may be used to identify common or similar elements.
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FIG. 1 shows a pipejoint apparatus 100 mounted on adrill floor 102. The pipejoint apparatus 100 is movable between a parked position remote from ahole 104 in thedrill floor 102 and a use position proximate thehole 104. The pipejoint apparatus 100 is shown in the parked position inFIG. 1 . Below thehole 104 is a well 106. Atool string 108, such as a drill string, is suspended in the well 106 by means such asslips 109 in a rotary table 111. Protruding above thehole 104 is apipe 110, which is part of thetool string 108 and may be one of many pipes in thetool string 108. Thepipe 110 has abox 112. A “box” in pipe terminology is “an internal (female) threaded end.” Off to the side of thehole 104 is apipe 114 to be joined to thepipe 110. Thepipe 114 may be a standalone pipe or may be part of a pipe stand. Several of such pipes, or pipe stands, may be arranged on a rack (not shown) in preparation for joining them to thetool string 108 suspended in thewell 106. Thepipe 114 has apin 116. A “pin” in pipe terminology is “an external (male) threaded end” of the pipe. Thebox 112 has an inner receptor shaped like thepin 116. A connection can be made between thepipes pin 116 into thebox 112 and tightening the threads between thebox 112 andpin 116. -
FIG. 2 shows that the pipejoint apparatus 100 includes astabbing guide 118 and alubricator 120. The pipejoint apparatus 100 can be operated to vertically align thestabbing guide 118 or thelubricator 120 with the box 112 (inFIG. 1 ) in order to perform a pipe joint apparatus function. Thestabbing guide 118 provides the pipe joint apparatus function of guiding the pin 116 (inFIG. 1 ) into thebox 112. The guiding may be a precursor to the actual stabbing of thepin 116 into thebox 112. Thelubricator 120 provides the pipe joint apparatus function of delivering lubricant or “dope” to thebox 112 before thepin 116 is stabbed into thebox 112. Thebox 112 will share the lubricant with thepin 116 while the threads between thebox 112 and pin 116 are tightened. The pipejoint apparatus 100 includes a positioning or translation mechanism, generally indicated at 122, for placing thestabbing guide 118 andlubricator 120 in their working positions relative to thebox 112. Thepositioning mechanism 122 provides a combination of rotary and linear motions to position thestabbing guide 118 andlubricator 120 at their working or non-working positions. - In one embodiment, the
positioning mechanism 122 includes alinear actuator 124 that provides linear motion along a vertical axis Y. Twoarms FIG. 8 ). Thefirst arm 126 is attached to thestabbing guide 118, and thesecond arm 128 is attached to thelubricator 120. Coupling of the twoarms linear actuator 124, in one embodiment, involves attaching thefirst arm 126 to thelinear actuator 124 and attaching thesecond arm 128 to thefirst arm 126. Thus the twoarms linear actuator 124. In an alternate embodiment, each of thearms actuator 124. In general, any manner of coupling thestabbing guide 118 andlubricator 120 may be used. Typically, the coupling of thestabbing guide 118 and thelubricator 120 to thelinear actuator 124 would be such that any motion provided by or acting on thelinear actuator 124 can be simultaneously applied to thestabbing guide 118 andlubricator 120. This may simplify control of thepositioning mechanism 122. - The shapes of the
arms stabbing guide 118 andlubricator 120 are generally diametrically opposed about the vertical axis Y (also seeFIG. 8 ). The shapes of thearms stabbing guide 118 andlubricator 120, i.e., thestabbing guide 118 andlubricator 120 are generally at about the same level relative to the vertical axis Y. These factors may lend symmetry to the system that can be exploited when designing the control for thepositioning mechanism 122. However, diametric opposition and common horizontal plane are not to be taken as restrictions on coupling of thestabbing guide 118 andlubricator 120 to thelinear actuator 124. It is possible for the angle between thestabbing guide 118 andlubricator 120 to be less than 180 degrees in a selected horizontal plane and/or for thestabbing guide 118 andlubricator 120 to not be at positions where they can both be intersected by a common horizontal plane. - The
linear actuator 124 can be operated to move thearms stabbing guide 118 andlubricator 120 will move with thearms linear actuator 124 can have any suitable configuration to provide the linear motion to thearms linear actuator 124 includes aconveyor 130, such as a belt conveyor, that moves along the vertical axis Y and afixture 132 that is coupled to theconveyor 130. Thearms fixture 132. In another example, thelinear actuator 124 includes a track that is oriented along the vertical axis Y and a carriage that travels along the track. In this second example that is not shown, thearms linear actuator 124 may respond to external control signals, which would allow for remote or automated control of the position of thearms stabbing guide 118 andlubricator 120, along the vertical axis Y. The external control signals may take on any suitable form, e.g., mechanical, electrical, or radio. Thestabbing guide 118 andlubricator 120 may have proximity sensors (not shown) to assist in determining When to stop moving thearms arms - The
positioning mechanism 122 further includes arotary actuator 134, whose output shaft or pin is coupled to thelinear actuator 124. Therotary actuator 134 may be mounted below thelinear actuator 124, as shown, or above thelinear actuator 124. Therotary actuator 134 can have any suitable configuration to provide rotary motion. For example, therotary actuator 134 may be an electric motor. Therotary actuator 134 can be operated to impart rotary motion on thelinear actuator 124 such that thelinear actuator 124 is rotated about the vertical axis Y by a predetermined rotational angle. As thelinear actuator 124 is rotated, thearms stabbing guide 118 andlubricator 120 are attached, respectively, will also be rotated. The angle of rotation can be selected such that either of thestabbing guide 126 andlubricator 128 is vertically aligned with the box (112 inFIG. 1 ). Therotary actuator 134 may respond to external control signals, which would allow for remote or automated control of the placement of thestabbing guide 118 orlubricator 120 above the box. 112. The external control signals may take on any suitable form, e.g., mechanical, electrical, or radio. -
FIG. 3 shows thestabbing guide 118 andlubricator 120 in a non-working position. Here, neither of thestabbing guide 118 andlubricator 120 is aligned with thebox 112. The rotary actuator 134 (seeFIG. 2 ) can be operated to rotate the lubricator 120 from the non-working position to an intermediate position where thelubricator 120 is above and centered with the box 112 (seeFIG. 4 ). InFIG. 4 , thebox 112 is covered by thelubricator 120. Afterwards, the linear actuator 124 (seeFIG. 2 ) can be operated to move thelubricator 120 towards thebox 112 and into the working position on thebox 112, where thelubricator 120 will be able to deliver lubricant to thebox 112. This sequence will be reversed to move thelubricator 120 back to the non-working position. Similarly, therotary actuator 134 can be used to the rotate thestabbing guide 118 to an intermediate position where the stabbing guide is above and centered with the box 112 (seeFIG. 5 ). Then, thelinear actuator 124 can be used to move thestabbing guide 118 to the working position on thebox 112. Proximity sensors or mechanical stops may assist in placing thestabbing guide 118 andlubricator 120 in their working positions. -
FIG. 6 shows that thestabbing guide 118 has apipe guard 200 made of twojaws jaw 200 a has aninner wall 202 a that is made of an uppertapered section 202 a 1 an uppervertical section 202 a 2, and a lowervertical section 202 a 3. The lowervertical section 202 a 3 is recessed relative to the uppervertical section 202 a 2, resulting in ahorizontal shoulder 202 a 4 between them. Similarly, thejaw 200 b has aninner wall 202 b that is made of an tipper taperedsection 202 b 1, an uppervertical section 202 b 2, and a lowervertical section 202b 3, with ahorizontal shoulder 202 b 4 between the uppervertical section 202 b 2 and the lowervertical section 202b 3. - In the working position of the
stabbing guide 118, thejaws inner walls encircling wall 211. In this position, the surfaces of the lowervertical sections 202 a 3, 202 a 4 define ahole 203 in which a box can be received. The surfaces of the uppertapered sections 202 a 1, 202 b 1 and the uppervertical sections 202 a 2, 202 b 2 define ahole 204 in which a pin can be received. Thehole 204 is axially aligned with thehole 203. Thehole 204 is shaped to encourage a pin to fall into alignment with a box that is received in thehole 203. For example, thehole 204 may have a funnel shape. Also in the working position of thestabbing guide 118, thehorizontal shoulders 202 a 4, 202 b 4 form aseat 205 that is designed to sit on the rim of a box received in thehole 203. Theseat 205 is between theholes seat 205 is generally annular in shape and will substantially cover the rim such that when the pin is being inserted into the box, the pipe guard will prevent substantial contact between the pin and the rim of the box. - The
stabbing guide 118 also has aretainer 214 in which thepipe guard 200 is held. Theretainer 214 is made of two retainer ring halves 214 a, 214 b. Thejaws groove joints jaws jaws hard material jaws jaws jaws jaws stabbing guide 118 will be made of a hard material such as steel. Thejaws jaws -
Ears FIG. 8 , are attached to the retainer ring halves 214 a, 214 b, respectively. Theears support plate 208 viapivot joints actuator 212 is coupled to both of theears ear actuator 212 may be a linear actuator, such as a trunnion cylinder, whose linear motion will cause theears actuator 212 can respond to external control signals, which would allow remote or automated control of rotation of theears - Because the retainer ring halves 214 a, 214 b carry the
jaws ears jaws jaws jaws FIG. 4 . In the closed position, thejaws FIG. 8 . In the closed position, thejaws holes 203, 204 (inFIG. 6 ) and seat 205 (inFIG. 6 ) mentioned above. The normal position of thejaws jaws stabbing guide 118 is mounted on a box to provide a protective guiding function. -
FIG. 7A shows thestabbing guide 118 in the working position relative to thebox 112 andpin 116. Here, thestabbing guide 118 has been positioned on thebox 112 via a combination of linear and rotational motions provided by the positioning mechanism 122 (inFIG. 2 ), and theactuator 212 has been operated to move thejaws box 112 is received in thelower hole 203 formed by theclosed jaws jaws box 112 in this position. Thejaws rim 112 a of thebox 112 via theannular seat 205 formed by theclosed jaws pin 116 is being inserted into thebox 112 via theupper hole 204 formed by theclosed jaws jaws rim 112 a of thebox 112 as thepin 116 is being guided into thebox 112 by theupper hole 204. In a preferred embodiment, the inner diameter of theannular seat 205 formed by theclosed jaws rim 112 a of thebox 112. such that thejaws rim 112 a of thebox 112 as thepin 116 is being guided intobox 112. As shown inFIG. 7B , if x is the radial difference between the inner diameter of theannular seat 205 and the inner diameter of therim 112 a, then x is equal to or greater than zero. -
FIG. 9 shows that thelubricator 120 has adrum 300, which is arranged inside a generallycylindrical housing 302. Thedrum 300 is of a smaller diameter than thehousing 302 such that anannulus 304 is defined between them. Thisannulus 304 is large enough to receive the wall of thebox 112. At the top of thehousing 302 is acap 306, which has aconduit 308 that runs into the inside of thedrum 300. Ashaft 310 is inserted into thedrum 300 through theconduit 308. Theupper end 312 of theshaft 310 is coupled to arotary actuator 314 above thecap 306. Therotary actuator 314 may be an electrical motor or any other actuator capable of rotating theshaft 310. In one embodiment, therotary actuator 314 can respond to external control signals, which would allow remote or automated control of the rotation of theshaft 310. The external control signals may take on any suitable form, e.g., mechanical, electrical, or radio. Thelower end 316 of theshaft 310 is coupled to the lower end of thedrum 300 in a manner that allows theshaft 310 to be rotated within thedrum 300. - The
cap 306 has aport 317 that is in communication with the inside of thedrum 300 and through which lubricant or “dope” can be delivered to the inside of thedrum 300. Atubing 318 couples theport 317 to a lubricant source (not shown), which may be located remotely from thelubricator 120. Thedrum 300 is perforated or haspores 320. Lubricant 322 received inside thedrum 300 is distributed about thedrum 200 and squeezed out of thepores 320 of thedrum 300 via centrifugal force, which is provided by rotation of theshaft 310. In use, thelubricator 120 is vertically aligned with thebox 112 using the rotary actuator 134 (inFIG. 2 ). Thelubricator 120 is then lowered onto thebox 112 using the linear actuator 124 (inFIG. 2 ) such that the wall of thebox 112 fits into theannulus 304 and thehousing 302 sits on the rim of thebox 112. The thread of thebox 112 will be in opposing relation to thedrum 300 and will be lubricated via centrifugal force as mentioned above. Alternatively, other lubricators besideslubricator 120 may be used withapparatus 100. For instance, lubricators described in U.S. patent application Ser. No. 61/807,676 may be used, which is herein fully incorporated in its entirety by reference for all that the patent application discloses. For instance,lubricator 142 shown inFIG. 3D of that application may be used in lieu oflubricator 120. Further,coupler apparatus 200 shown inFIG. 7 of that application may also be used in lieu oflubricator 120. -
FIG. 2 shows that thepositioning mechanism 122, stabbingguide 118, andlubricator 120 are supported on aframe structure 140 including abase frame 142 and avertical frame 144. Abracket 146 is attached to the top of thevertical frame 144, and the top end of thelinear actuator 124 is coupled to thebracket 146 via a rotary joint 148. The bottom end of thelinear actuator 124 is coupled to therotary actuator 134, which is coupled to or mounted on thebase frame 142. Theframe structure 140 is movable between the parked position and the use position via anothertranslation mechanism 150 coupled to thebase frame 142. Thetranslation mechanism 150 can be any suitable mechanism capable of moving an object between two positions, typically along a linear direction. In one embodiment, for safety and efficiency reasons, thetranslation mechanism 150 can be operated remotely or automatically. One embodiment of thetranslation mechanism 150 is shown inFIGS. 1 and 10 . Alternatively, the base 190 shown inFIGS. 6A and 6B of the incorporated U.S. patent application Ser. No. 61/807,676 may be used in lieu offrame structure 140. -
FIG. 10 shows aplatform 400 secured to thedrill floor 102 in parallel to thebase frame 142. Thetranslation mechanism 150 is arranged between and coupled to thebase frame 142 and theplatform 400. In one embodiment, thetranslation mechanism 150 is configured as a linkage mechanism having arear linkage 401 arranged at the rear of thebase frame 142 and afront linkage 402 arranged at the front of thebase frame 142. Thetranslation mechanism 150 may have a pair of rear linkages and a pair of front linkages for a stable system. Therear linkage 401 has alink 404 that is coupled to thebase frame 142 by a pivot joint 408 and alink 406 that is coupled to theplatform 400 by apivot joint 410. The twolinks front linkage 402 has alink 412 that is coupled to thebase frame 142 by a pivot joint 416 and alink 414 that is coupled to theplatform 400 by apivot joint 418. The twolinks - In one embodiment, a
linear actuator 420 is coupled to thelink 414 of thefront linkage 402 by apivot joint 422. Thelinear actuator 420 can be operated to apply a push or pull force to thelink 414 depending on the direction in Which thebase frame 142 is to be moved. The push or pull force will cause thefront linkage 402 to rotate about thepivot joint 418. As thefront linkage 402 rotates clockwise, thebase frame 142, which is coupled to thefront linkage 402, will move to the right, i.e., in a direction towards the hole 104 (inFIG. 1 ) or towards the use position. Similarly, as thefront linkage 402 rotates counterclockwise, thebase frame 142 will move to left, i.e., in a direction away from thehole 104 or towards the parked position. The movingbase frame 142 will cause therear linkage 401 to rotate about the pivot joint 410 in the same direction that thefront linkage 402 is rotating. Any suitablelinear actuator 420 may be used to apply a push or pull force to thelink 414. Thelinear actuator 420 may be a fluid-powered piston cylinder, for example, where the piston may be coupled to thelink 414 and the cylinder may be fixed to theplatform 400. -
FIG. 1 shows that acentralizer mechanism 152 may be used with the pipejoint apparatus 100. Thecentralizer mechanism 152 will assist in generally centering thepipe 114 with thepipe 110 above thebox 112 prior to using thestabbing guide 118 to guide thepin 116 into thebox 112. In one embodiment, as shown inFIG. 11 , thecentralizer mechanism 152 has twosupport arms FIGS. 1 and 2 ). Thesupport arms base frame 142 viapivot joints support arms plate 518 mounted on thebase frame 142 viaactuators actuators support arms actuators support arms support arms actuators support arms - Each
support arm centralizer arm FIG. 11 , thecentralizer arms inner surfaces centralizer arms FIG. 12 ), thecentralizer arms inner surfaces FIG. 13 ), thecentralizer arms FIG. 3 ) is defined between theinner surfaces pipe 114. The opening for receiving and constraining thepipe 114 will be vertically aligned with thepipe 110 suspended in the drill floor so that thepipe 114 can be generally centered with thepipe 110 prior to guiding thepin 116 of thepipe 114 into thebox 112 of thepipe 110. Thecentralizer arms pipe 114 by limiting the extent to which thepipe 114 can travel horizontally or laterally. Thecentralizer arms support arms -
FIGS. 14A-14L , show a process of forming a connection between two pipes with the aid of the pipejoint apparatus 100. InFIG. 14A , the pipejoint apparatus 100 is in the parked position. InFIG. 14B , the pipejoint apparatus 100 has been moved to the use position. Thecentralizer arms box 112 of thepipe 110 in this position. InFIG. 14C , thelubricator 120 has been rotated so that it is positioned above and vertically aligned with thebox 112. InFIG. 14D , thelubricator 120 has been lowered onto thebox 112 and is delivering lubricant to thebox 112. InFIG. 14E , thelubricator 120 has been lifted off thebox 112. InFIG. 14F thestabbing guide 118 has been rotated so that it is positioned above and centered with thebox 112. InFIG. 14G , thestabbing guide 118 has been lowered onto thebox 112. InFIG. 14H , thepipe 114 has been picked up from its rest position and is about to be placed in between thecentralizer arms FIG. 14I , thepipe 114 has been constrained between thecentralizer arms pipe 110. -
FIG. 14J shows thepin 116 of thepipe 114 guided into thebox 112 of thepipe 110 through thestabbing guide 118.FIG. 7A shows the relationship between thepin 116,box 112, and thestabbing guide 118 during this process. Here, thestabbing guide 118 sits on top of thebox 112 via theseat 205 formed by theclosed jaws box 112 is received in thehole 204 formed by theclosed jaws pin 112 is guided in thebox 112 by thehole 203, also formed by theclosed jaws FIG. 14K , thestabbing guide 118 has been removed from thebox 112 and returned to the non-working position so that stabbing of thepin 116 into thebox 112 can be completed. InFIG. 14L , the threaded connection between thepin 116 andbox 112 has been made and the pipejoint apparatus 100 has been returned to the non-working position. The threaded connection may be made by an iron roughneck or other apparatus that can provide the torque needed to tighten the threads between thepin 116 andbox 112. -
FIG. 15 shows acontrol system 600 that can be used for automatic operation of the pipe joint apparatus 100 (inFIG. 1 ). Thecontrol system 600 may include acontroller 602 that sends signals to theactuators joint apparatus 100. Thecontroller 602 may also receive signals from the actuators, e.g., so that thecontroller 602 knows that a certain action has been completed before thecontroller 602 issues the next command. In one embodiment, thecontroller 602 is implemented as a computer system. In one configuration, the computer system may include aprocessor 604,memory 606,display 608, communications interface (or device(s)) 610, and input interface (or device(s)) 612. Thecontroller 602 can receive input from a user via theinput interface 612 and communicate with the actuators and sensors associated with the pipejoint apparatus 100 via thecommunications interface 610. Thecontroller 602 may include a program that is stored inmemory 606 or another computer-readable media 614 and executed by theprocessor 604. The program may include instructions for executing the process described above with reference toFIGS. 14A-14L . Thecontroller 602 may be a separate system or part of a larger system used on the drill floor to control various operations. - It is envisioned that the pipe
joint apparatus 100 can be controlled remotely or automatically so that it is not necessary for personnel to be near the well center, or hole in the drill floor, while potentially dangerous operations such as stabbing are being performed. The stabbing guide of the pipejoint apparatus 100 is configured to sit on the rim of a box so that it protects the rim of the box while a pin is being inserted into the box. By protecting the rim of the box, the stabbing guide also protects the pin.
Claims (20)
1. A pipe joint apparatus, comprising:
a stabbing guide configured to protect a rim of a box of a first pipe end while guiding a second pipe end into the first pipe end; and
at least one guide actuator configured to move the stabbing guide between a non-working position where the stabbing guide is not vertically aligned with the box of the first pipe end and a working position where the stabbing guide is vertically aligned with the box of the first pipe end.
2. The pipe joint apparatus of claim 1 , further comprising:
a lubricator configured to provide lubricant to the box of the first pipe; and
at least one lubricator actuator configured to move the lubricator between a non-working position where the lubricator is not vertically aligned with the box of the first pipe end and a working position where the lubricator is vertically aligned with the box of the first pipe end.
3. The pipe joint apparatus of claim 2 , further comprising:
a positioning mechanism coupled to the stabbing guide and the lubricator and is configured to position the stabbing guide and the lubricator in their non-working and working positions.
4. The pipe joint apparatus of claim 3 , wherein the positioning mechanism further comprises:
a conveyor configured to vertically move the stabbing guide and the lubricator; and
a fixture coupled to the stabbing guide and the lubricator, wherein the fixture is coupled to the conveyor and is configured to move vertically along the conveyor.
5. A pipe joint apparatus, comprising:
a stabbing guide comprising a pipe guard having an inner wall including an upper tapered section, an upper vertical section and a lower vertical section, wherein a horizontal shoulder is formed between the upper vertical section and the lower vertical section; and
at least one guide actuator configured to move the stabbing guide between a non-working and a working position
wherein the horizontal shoulder of the inner surface of the pipe guard at least partially covers a rim of a box end of a first pipe.
6. The pipe joint apparatus of claim 5 , wherein the pipe guard comprises two jaws that are configured to encircle the box of the first pipe, wherein the jaws include an open position and a closed position.
7. The pipe joint apparatus of claim 6 , further comprising an actuator configured to transition the pipe guard between the open position and the closed position.
8. A method for guiding one pipe into another, comprising:
vertically aligning a stabbing guide of a pipe joint apparatus vertically over a box of a first pipe;
covering a rim of the box of the first pipe with a pipe guard of the stabbing guide; and
inserting a pin of a second pipe into the box of the first pipe.
9. The method of claim 8 , further comprising vertically aligning a lubricator of the pipe joint apparatus vertically over the box of the first pipe.
10. The method of claim 9 , further comprising lubricating the box of the first pipe using the lubricator of the pipe joint apparatus.
11. The pipe joint apparatus of claim 1 , wherein the stabbing guide comprises a pipe guard having an inner wall including an upper tapered section configured to receive a pin end of a pipe.
12. The pipe joint apparatus of claim 11 , wherein the inner wall of the pipe guard comprises an upper vertical section and a lower vertical section, wherein a horizontal shoulder is formed between the upper vertical section and the lower vertical section.
13. The pipe joint apparatus of claim 12 , wherein the horizontal shoulder of the inner wall of the pipe guard at least partially covers a rim of the box of the first pipe end.
14. The pipe joint apparatus of claim 11 , wherein the pipe guard comprises two jaws that are configured to encircle the box of the first pipe end, wherein the jaws include an open position and a closed position.
15. The pipe joint apparatus of claim 14 , further comprising an actuator configured to transition the pipe guard between the open position and the closed position.
16. The pipe joint apparatus of claim 1 , wherein the at least one guide actuator comprises a rotary actuator configured to impart rotary motion to the stabbing guide.
17. The pipe joint apparatus of claim 16 , wherein the rotary actuator is coupled to a linear actuator configured to move the stabbing guide linearly along a vertical axis of the linear actuator.
18. The pipe joint apparatus of claim 5 , wherein the at least one guide actuator is configured to vertically align the stabbing guide with the box end of the first pipe.
19. The pipe joint apparatus of claim 5 , wherein the at least one guide actuator comprises a rotary actuator configured to impart rotary motion to the stabbing guide.
20. The pipe joint apparatus of claim 19 , wherein the rotary actuator is coupled to a linear actuator configured to move the stabbing guide linearly along a vertical axis of the linear actuator.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/420,242 US20150176349A1 (en) | 2012-08-08 | 2013-08-08 | Pipe joint apparatus and method |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201261680896P | 2012-08-08 | 2012-08-08 | |
PCT/US2013/054197 WO2014026038A1 (en) | 2012-08-08 | 2013-08-08 | Pipe joint apparatus and method |
US14/420,242 US20150176349A1 (en) | 2012-08-08 | 2013-08-08 | Pipe joint apparatus and method |
Publications (1)
Publication Number | Publication Date |
---|---|
US20150176349A1 true US20150176349A1 (en) | 2015-06-25 |
Family
ID=50068580
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/420,242 Abandoned US20150176349A1 (en) | 2012-08-08 | 2013-08-08 | Pipe joint apparatus and method |
Country Status (4)
Country | Link |
---|---|
US (1) | US20150176349A1 (en) |
EP (1) | EP2882924A4 (en) |
CA (1) | CA2880452A1 (en) |
WO (1) | WO2014026038A1 (en) |
Cited By (8)
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WO2019173619A1 (en) * | 2018-03-09 | 2019-09-12 | Weatherford Technology Holdings, Llc | Tubular stabbing guide for tong assembly |
US20200063506A1 (en) * | 2018-08-22 | 2020-02-27 | Weatherford Technology Holdings, Llc | Sensor system for tong assembly |
US10808467B1 (en) * | 2019-10-18 | 2020-10-20 | Kye M Haley | Retractable tubular holdback line system and method |
EP4112870A1 (en) * | 2021-07-02 | 2023-01-04 | National Oilwell Varco, L.P. | Passive tubular connection guide |
US20230073941A1 (en) * | 2020-02-07 | 2023-03-09 | Itrec B.V. | A stabbing guide and an operating method |
US11686160B2 (en) | 2020-09-04 | 2023-06-27 | Schlumberger Technology Corporation | System and method for washing and doping oilfield tubulars |
US11898407B2 (en) | 2020-08-31 | 2024-02-13 | Nabors Drilling Technologies Usa, Inc. | Stabbing guide for a robotic roughneck |
US12116846B2 (en) | 2021-04-30 | 2024-10-15 | National Oilwell Varco, L.P. | Passive rotation disconnect |
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GB2537159A (en) | 2015-04-10 | 2016-10-12 | Nat Oilwell Varco Uk Ltd | A tool and method for facilitating communication between a computer apparatus and a device in a drill string |
DK179938B1 (en) * | 2018-03-11 | 2019-10-14 | Maersk Drilling A/S | Robotic Apparatus for performing Drill Floor Operations |
CN110273413A (en) * | 2019-06-12 | 2019-09-24 | 宁波中淳高科股份有限公司 | A kind of efficient construction method of prefabricated pile |
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WO2019173619A1 (en) * | 2018-03-09 | 2019-09-12 | Weatherford Technology Holdings, Llc | Tubular stabbing guide for tong assembly |
US10648255B2 (en) | 2018-03-09 | 2020-05-12 | Weatherford Technology Holdings, Llc | Tubular stabbing guide for tong assembly |
US20200063506A1 (en) * | 2018-08-22 | 2020-02-27 | Weatherford Technology Holdings, Llc | Sensor system for tong assembly |
US10995569B2 (en) * | 2018-08-22 | 2021-05-04 | Weatherford Technology Holdings, Llc | Sensor system for tong assembly |
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EP4112870A1 (en) * | 2021-07-02 | 2023-01-04 | National Oilwell Varco, L.P. | Passive tubular connection guide |
Also Published As
Publication number | Publication date |
---|---|
EP2882924A1 (en) | 2015-06-17 |
EP2882924A4 (en) | 2016-03-16 |
WO2014026038A1 (en) | 2014-02-13 |
CA2880452A1 (en) | 2014-02-13 |
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Legal Events
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STCB | Information on status: application discontinuation |
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