Abstract: A rig (10) for selectively inserting coiled tubing or threaded tubulars into a well includes a mast (14) extending upward from a mast carrier (12), and a coiled tubing injector (16) and a coiled tubing reel (26) supported on a coiled tubing carrier (28) separate from the mast carrier. The mast (14) may be pivotal on the mast carrier to attach the coiled tubing injector 16 to the mast while the injector is supported on the coiled tubing carrier.

Abstract: Aspects of the present invention provide a tubular handling system for handling wellbore tubulars. In one aspect, the present invention provides a tubular handling system adapted to retain a tubular without damaging the outer surface of the tubular. In another aspect, the present invention provides a method of connecting tubulars by remotely controlling the connection process, including joint compensation, alignment, make up, and interlock. In one embodiment, the tubular handling system comprises an elevator adapted to support a tubular utilizing a first portion of an upset of the tubular and a spider adapted to support the tubular utilizing a second portion of the upset. In another embodiment, at least one of the elevator and the spider is remotely controllable. In yet another embodiment, the tubular handling system comprising a joint compensator system adapted to provide fluid communication to the elevator during rotation of the tubular.

Abstract: A drilling flange and an independent screwed wellhead provides a metal-to-metal seal that supplements the traditional elastomeric O-rings for providing a fluid seal between the drilling flange and the wellhead. The metal-to-metal seal may be achieved using a metal ring gasket or two contacting metal surfaces that are machined to required tolerances and are configured to be forced together when the drilling flange is mounted to the wellhead. The metal-to-metal seal ensures a fluid seal between the flange body and the wellhead in the event that the O-rings malfunction or are destroyed by fire.

Abstract: An hydraulic snubbing unit has a pair of hydraulic cylinders for moving travelling snubbing slips towards and away from stationary snubbing slips to snub a pipe through the snubbing unit, the hydraulic cylinders having spaced, parallel cylinder rods. A pipe guidance apparatus has pipe guides between the stationary snubbing slips and the travelling snubbing slips, the pipe guides each having a pair of cylinder rod openings spaced apart from one another and slidably receiving the rods of the hydraulic cylinders and a pipe guidance opening located between the cylinder rod openings and slidably guiding the pipe, and a pipe guide spacer having extendable and contractible interconnections between the pipe guides.

Abstract: A method of installing equipment subsea comprising the steps of: assembling the equipment within a frame; submerging in the sea at least a part of an assembly comprising the frame and the equipment; coupling the at least partially submerged assembly to a vessel; transporting the at least partially submerged assembly proximate a subsea installation site; coupling the assembly to an installation device; and installing the equipment at the installation site using the installation device. A frame for supporting equipment is also disclosed wherein the frame is shaped to match the dimensions of the equipment to be supported. The frame comprises at least one clamp having a first half clamp member for releasably engaging a second half clamp member of a second structure and a full clamp member for clamping around and supporting the equipment. The first half clamp member and the full clamp member can be integrally formed.

Abstract: An operational system and method and improved apparatus for positioning and stabbing well tubulars wherein: the grasping members of the apparatus can be folded and unfolded; the boom assembly can be pivoted to a downward clearance position; a plurality of stabbing apparatuses can be placed and used in a stacked position in the derrick; the grasping members can opened at an angle with respect the boom; the grasping members can be mounted on either lateral side of the boom; a sensor monitors the relative position of the rig top drive with respect to the stabbing apparatus; the grasping members and/or the boom will automatically pivot to a breakaway position if impacted; and/or the system is programmed and configured to prevent the accidental performance of critical operations out of sequence.

Abstract: An apparatus and automated control of the apparatus for use in coiled pipe operations is provided. The apparatus includes a mobile rig or trailer that carries a tower having attached thereto a reel of coiled tubing and a standard coiled tubing injector. The tower is positionable to support the reel of coiled tubing and the injector at a desired elevation above a wellhead. The reel of coiled tubing is supported upon a movable reel cart which is actively positioned by an automated control system to position the reel of coiled tube and ultimately the coiled tubing as it drawn from and drawn upon the reel during operation. The control system monitors the position of the coiled tube as it is passed through the injector and positions the reel cart to minimize the number of bends the coiled tubing is subjected to during one complete iteration of running in and withdrawal.

Abstract: A holding member provides for releasably positioning a rotating control head assembly in a subsea housing. The holding member engages an internal formation in the subsea housing to resist movement of the rotating control head assembly relative to the subsea housing. The rotating control head assembly is sealed with the subsea housing when the holding member engages the internal formation. An extendible portion of the holding member assembly extrudes an elastomer between an upper portion and a lower portion of the internal housing to seal the rotating control head assembly with the subsea housing. Pressure relief mechanisms release excess pressure in the subsea housing and a pressure compensation mechanism pressurize bearings in the bearing assembly at a predetermined pressure.

Abstract: The inventions relates to an apparatus for connecting a control line to a tubular string. In one embodiment, the apparatus includes a guide boom pivotable around a location adjacent the string and with a guide member at an end thereof to guide the control line. The apparatus further includes a clamp boom that is independently pivotable and includes a clamp housing at an end thereof for clamping the control line against the tubular string. The guide boom and the clamp boom each have a center line which is substantially aligned with the center line of the tubing string permitting the control line to be aligned adjacent the tubular string prior to clamping.

Abstract: A tubular stabbing protector includes: a plurality of body sections together forming a first opening and a second opening, the first opening sized to be secured over a pin end of an oilfield tubular and the second opening sized to fit over a connection to which the pin end of the tubular is to be engaged and opening away from the first opening; and a releasable lock between each adjacent body section of the plurality of body sections, the releasable lock being automatically releasable when the second opening is fit over the connection to permit the plurality of body sections to separate sufficiently to release the pin end.

Abstract: A movable arm 10 engages a flexible line 50 at a well site for positioning the flexible line between run-in position for passing the flexible line with a tubular through a well hole in the rig floor and a clamping position wherein the flexible line is adjacent the tubular above the rig floor for clamping the line to the tubular. The arm 10 extends upward from the rig floor 70, and includes a line guide, such as roller 12, for engaging the flexible line when in the run-in position. A powered drive 14 moves the arm between the run-in position and the clamping position. A spacer 82 may be used for positioning two or more flexible lines at a desired spacing relative to one another prior to positioning the lines within a clamp secured to the tubular. A slip bowl assembly 60 may be laterally movable so that slips do not engage the flexible line as it is run in the well.

Abstract: A holding member provides for releasably positioning a rotating control head assembly in a subsea housing. The holding member engages an internal formation in the subsea housing to resist movement of the rotating control head assembly relative to the subsea housing. The rotating control head assembly is sealed with the subsea housing when the holding member engages the internal formation. An extendible portion of the holding member assembly extrudes an elastomer between an upper portion and a lower portion of the internal housing to seal the rotating control head assembly with the subsea housing. Pressure relief mechanisms release excess pressure in the subsea housing and a pressure compensation mechanism pressurize bearings in the bearing assembly at a predetermined pressure.

Abstract: A wellhead has, instead of a conventional Christmas tree, a spool tree (34) in which a tubing hanger (54) is landed at a predetermined angular orientation As the tubing string can be pulled without disturbing the tree, many advantages follow, including access to the production casing hanger (21) for monitoring production casing annulus pressure, and the introduction of larger tools into the well hole without breaching the integrity of the well.

Abstract: The preferred embodiment includes methods and apparatus for locating a member within an aperture. One preferred apparatus generally includes a housing containing at least one rotatably connected ring, and a plurality of tie members spaced evenly about the ring's perimeter. The tie members are connected to the rotating ring and the housing such that rotation of the ring pulls the tie members taut across the inside of the ring. Rotating the ring in the opposite direction returns the tie members to their initial orientation. When the tie members are taut they urge elements passing through an opening towards the center. When the apparatus is installed in a drilling rig floor, it results in a simpler and more effective pipe centering technology than currently exists allowing pipe strings to be centered in the slip bowl or power slips so that the slips are easily and securely installed about the pipe string.

Abstract: An apparatus for transporting an injector assembly, such as an injector and a BOP, for coiled tubing to a wellhead may have a platform, such as a trailer, having a shaft attached thereto by at least one bracket. Pivotally on the bracket may be a boom, which may have telescopic sections, and at least one member, which may have a substantially boomerang shape. The member may be attachable to the bracket by an extendable boom fold actuator, and may be attachable to the boom via an extendable boom operating actuator. By selectively extending and contracting the boom fold actuators and the boom operating actuators, the boom may be selectively positioned between a transport mode, a vertical mode, and an operating mode. In this way, one assembly may be used to transport the coiled tubing and the injector assembly for connection to the wellhead, thus minimizing rig-up or set up time.

Abstract: An improved tong positioning apparatus which includes a base positionable on the rig floor; a hydraulic cylinder positioned on the base, having a first end engageable to a rear support member and a second end engageable to a pivotal moment arm; a forward shock attachment arm engaged at a first end to one of three attachment points on the moment arm, and a second end which attaches to a tong frame attachment point on the tong. The forward shock attachment arm includes a pair of shock absorbers engaged along its length to provide a smooth, non-jerking motion both vertically and horizontally in moving the power tong. The tong positioning apparatus is designed to be remotely operated by hydraulic, air, air over hydraulics, electronically, by a single operator.

Abstract: The present invention generally relates to methods and apparatus for connecting tubulars and reforming the connection between the tubulars. In one aspect of the invention, the tubulars are aligned, connected, and then reformed at the connection. In one embodiment, the reforming is accomplished by removing material from the tubular connection. Preferably, a broach is used to remove the material. In another embodiment, a reforming member operatively connected to a telescoping tubular is inserted into the tubulars.

Abstract: In one aspect, an apparatus for aligning tubulars is provided, comprising at least one guide, a tong, and a backup unit, wherein the guide is arranged on or between the tong and the backup unit, and wherein the guide is, in use, movable towards and away from the tubular with respect to the backup unit. In another aspect, an apparatus for aligning tubulars is provided, comprising a tong, a backup unit, at least one torsion post arranged therebetween, and at least one guide, the guide mounted on the torsion post. In another aspect, a method for aligning tubulars using the apparatus of the invention is provided, comprising moving the guide towards and away from the tubular with respect to the backup unit.

Abstract: An apparatus for facilitating the connection of tubulars using a top drive, said apparatus comprising a motor (4, 4?) for rotating a tool (30) for drivingly engaging a tubular, and means (3) for connecting said motor (4, 4?) to said top drive, the apparatus being such that, in use, said motor (4, 4?) can rotate one tubular with respect to another to connect said tubular.

Abstract: A modular work system permits Rig Up time to be substantially reduced by reducing the number of crane lifts required to offload equipment for a transport boat or vehicle. This is achieved by developing transport skids capable of holding multiple system components. The number of equipment components that must be mechanically coupled on location is reduced by pre-assembling the components and maintaining the assembly in operating condition during storage and transport. Skid design concepts are employed, wherein a skid system carries various pre-assembled components for transport, storage and operation. Specifically, a skid sub-system includes various related components. The components are either pre-assembled or are designed to complete a sub-assembly through final assembly on the rig. The skid is moved into place using the crane, and the assembly is completed. Additional sub-systems are mounted on additional skids which are designed to be mated with the other related skids and sub-assemblies.

Abstract: The invention is directed to pressure lines for use with equipment associated with drilling and production risers, and in particular, pressure lines having breechblock connections with the equipment and with choke and kill lines for use in connection with different sized blowout preventer stacks (“BOP stacks”). The pressure line systems and choke and kill line systems of the invention include a breechblock connection for quick and easy removal and installation of the pressure lines to riser equipment and the choke and kill lines to BOP stacks. Additionally, the choke and kill lines of the invention may include a coupling system having a BOP connector, or plate assembly, for permitting one set of choke and kill lines to be used on various sized BOP stacks. The plate assembly is in fluid communication with a first choke or kill line connector.

Abstract: A coiled tubing injector assembly includes a coiled tubing injector and a tubing guide. The tubing guide has an automatic clamping mechanism that includes a pair of clamping slips. The clamping slip will automatically move from an open position in which coiled tubing can pass through the clamping sips, to a closed position in which the clamping slips positively clamp the coiled tubing to the tubing guide. The clamping mechanism moves from the open to the closed position when the tubing guide is lifted from an installation platform in which the coiled tubing is positioned in the tubing guide so that it can be positioned on top of the coiled tubing injector. The clamping mechanism will automatically clamp the coiled tubing to the tubing guide when the tubing guide is removed from the coiled tubing injector.

Abstract: A method and apparatus for moving pipe on a rig floor between a number of different stations including an off-floor rack, a preparation opening, a borehole, and a storage area, such that tubulars can be loaded onto the drill floor, prepared at the preparation opening, loaded onto or off of the storage rack, and connected to a drill string while drilling is simultaneously conducted at the borehole, comprising at least two pipehandling devices, at least one of the pipehandling devices having multiple independent gripping arms, the pipehandling devices being arranged for communicating pipe between a storage area off the drill floor, a storage area on the drill floor, at least one preparation opening, and a drill opening are provided.

Abstract: A method and apparatus for moving pipe on a rig floor between a number of different stations are provided. Generally the apparatus includes pipehandling equipment arranged to interact with an off-floor rack, a preparation opening, a borehole, and a storage area, such that tubulars can be loaded onto the drill floor, prepared at the preparation opening, loaded onto or off of the storage rack, and connected to a drill string while drilling is simultaneously conducted at borehole. In one embodiment, the system includes at least two pipehandling devices for communicating pipe between a storage area off the drill floor, a storage area on the drill floor, at least one preparation opening, and a drill opening.

Abstract: A casing alignment tool detachably mounts on a wellhead flange for moving a section of a casing into a concentric alignment with the wellhead of a well bore. The tool has a base plate attachable to the flange and a perpendicularly extending back plate, which supports a hydraulic jack or a winch. In the embodiment having a hydraulic jack, the tool provides for a V-block assembly with spread arms for pushing against the casing when the hydraulic jack is operated. In the embodiment using a winch, one or more flexible, non-stretchable bands are provided for wrapping around the casing and pulling the casing into alignment, with the flange acting as a fulcrum.

Abstract: The spider for large pipe has a base that straddles a slip bowl and supports an overarm that extends part way around pipe to be supported. The overarm is pivotally attached to the base and is moved vertically by an air bag or power cylinders to move a slip assembly into and out of the tapered bore of the slip bowl to releasably support a pipe string.

Abstract: A wear bushing has a lower portion that is landed on a casing hanger in a wellhead housing. The wear bushing is mounted to the running tool, which is joined to a drill string. With running-in keys locked on the tool, the wear bushing is lowered down the well into the wellhead housing. The wear bushing is landed on the casing hanger and anti-rotation pins are pressed upward as they contact a seal assembly. The wear bushing is rotated until the anti-rotation pins align and fall into slots. With the anti-rotation pins in the slots, the running tool is released from the wear bushing by opposite rotation, and the running tool may then be run deeper into the well. The wear bushing is extracted using a retrieval tool. The retrieval tool is axially positioned relative to the wear bushing such that tool retrieval teeth engage a wear bushing retrieval ring so that the wear bushing can be extracted from the casing hanger.

Abstract: A gooseneck for coiled tubing operations have a folding design to allow for a more compact design for storage and transport. The gooseneck may remain attached to the injector during transport, thereby decreasing the equipment required to move and set-up the coiled tubing equipment. The gooseneck includes a linkage mechanism for connecting a pair of support struts between the injector body and the tubing guide. The linkage allows the guide to follow a substantially parabolic path as it tracks the tubing from the reel to the injector.

Abstract: A bracket and tension rod device is mounted to a top-drive dolly to carry the weight of a sheave wheel assembly. The device is deployed by connecting the sheave wheel assembly to a rigid dolly arm with an adjustable tension rod to relieve a gooseneck from adverse tensile, compressive and bending forces from the movement of a wireline through the sheave assembly.

Abstract: An improved V-style gripper block to better accommodate a variable outer diameter material (e.g. cable, plastic, wire, or pipe). The gripper block comprises a block body being connectable to a gripper chain in an injector apparatus, a gripper plate having arcuate and/or angled gripping surfaces for engaging tubing of various outer diameters, and a flex layer disposed between the gripper plate and the block body to allow the gripping surface of the gripper plate to move relative to the block body to which it is attached. This relative movement allows the gripping surface of the gripper block to rapidly conform to changes in the outer diameter of coiled tubing. In various embodiments, the flex layer may be formed of elastomeric materials including natural or synthetic rubber; an encapsulated gel or liquid within a flexible membrane; or mechanical means such as springs.

Abstract: A continuous well string injection system, comprising a rig, such as a drilling or service rig, a continuous feed injection unit suspended from the rig, a continuous well string guide forming a conduit for continuous well string between a continuous well string holder and the continuous feed injection unit, the continuous well string guide being suspended from the rig at a suspension point between the continuous feed injection unit and the continuous well string holder; and a tension device, such as a cable, straddling the suspension point to restrain lateral movement of the continuous well string injection unit in relation to the continuous well string holder.

Abstract: A gooseneck for coiled tubing operations have a folding design to allow for a more compact design for storage and transport. The gooseneck may remain attached to the injector during transport, thereby decreasing the equipment required to move and set-up the coiled tubing equipment. The gooseneck includes a linkage mechanism for connecting a pair of support struts between the injector body and the tubing guide. The linkage allows the guide to follow a substantially parabolic path as it tracks the tubing from the reel to the injector.

Abstract: A centering tool assembly helps centrally position a casing in a tubing using a baseplate, actuator, support tube, power source, and reaction studs. The baseplate is positioned on an outside edge of the tubing. The actuator is either preinstalled on the baseplate or installed after positioning on the tubing's outside edge. The support tube vertically adjusts the actuator. The power source activates the actuator which provides a force against the casing, moving the casing into the central position. Reaction studs or counteracting members help stabilize the centering tool assembly during this positioning. The centering tool assembly may be used to either pull or push the casing into the desired position. Additionally, a method for centering a casing into a central or desired position in a tubing involves placing a baseplate on the edge of the casing. An actuator is installed on the baseplate and vertically adjusted via a support tube.

Abstract: A method of supporting an pipe in a bowl without marking the surface of the pipe by providing a pair of intermediate surfaces between the sloping surface of the bowl and the contact surface with the pipe. The intermediate surfaces are approximately perpendicular to each other in order to amplify the force against the pipe in comparison to the force from the bowl.

Abstract: An apparatus and a method for positioning a tubular relative to a tong is provided. In one aspect, a positioning tool may be mounted on a lower portion of the tong. The positioning tool includes a positioning member for determining a position of the tubular and a centering member for engaging the tubular. The positioning tool further includes an actuation device for actuating the centering member. The position of the tubular may be actively adjusted by actuating the centering member.

Abstract: A boring device for producing a bore with a casing tube has a linkage, a boring tool, which can be fixed to the lower end of the linkage, a mounting frame for mounting on the casing tube, a drive and a connecting device, which is used for producing a rotary connection between the casing tube and the mounting frame. The linkage is hollow and has a first and a second flushing line. In the vicinity of the upper end of the link-age are provided a first connection for the supply of a fluid to the first flushing line and a second connection for removing the borings via the second flushing line. A boring method introduced the casing tube into the soil prior to an excavation.

Abstract: A tubing guide for directing coiled tubing through an injector apparatus and into a well. The tubing guide comprises a frame, which is also referred to as a tubing carrier, extending from a base. The shape of the tubing guide changes depending upon the natural radius of curvature of the tubing. The tubing carrier will conform to provide a path for the coiled tubing that more nearly approximates the residual radius of curvature of the coiled tubing. The carrier has a plurality of segments pivotably connected to one another. The segments can pivot and thus the carrier itself can move from a fully retracted position to a fully rotated position. In the fully rotated position, the carrier can approximate a radius larger than that in the fully closed position. The segments are allowed to pivot or rotate as the tubing is passing therethrough so that the shape of the carrier is continually adjusting so as to provide a more natural path for the coiled tubing.

Abstract: A wear bushing has a lower portion that is landed on a casing hanger in a wellhead housing. An upper portion of the wear bushing has a shear ring in a locking profile that locks the wear bushing to the casing hanger. A locking ring resides in a bore of the wear bushing and has passages for fluid flow. The inner surface of the locking ring has teeth for engaging the teeth of a running tool when the tool is moved upward relative to the wear bushing. A plurality of locking keys extend radially inward through the bore of the wear bushing beneath the locking ring. A beveled ridge on the tool mates with the locking ring. The wear bushing is mounted to the tool which is joined to a drill string. With the locking keys locked on the tool, the wear bushing is lowered down the well into the wellhead housing. The wear bushing is landed on the casing hanger and the locking pins are pressed upward as they contact a seal assembly. The wear bushing is rotated until the locking pins align and fall into slots.

Abstract: A tubing guide for directing coiled tubing through an injector apparatus and into a well. The tubing guide comprises a frame, which is also referred to as a tubing carrier, extending from a base. The shape of the tubing guide changes depending upon the natural radius of curvature of the tubing. The tubing carrier will conform to provide a path for the coiled tubing that more nearly approximates the residual radius of curvature of the coiled tubing. The carrier has a plurality of segments pivotably connected to one another. The segments can pivot and thus the carrier itself can move from a fully retracted position to a fully rotated position. In the fully rotated position, the carrier can approximate a radius larger than that in the fully closed position. The segments are allowed to pivot or rotate as the tubing is passing therethrough so that the shape of the carrier is continually adjusting so as to provide a more natural path for the coiled tubing.

Abstract: The present invention is an auxiliary chain for drawing assemblies including at least a track formed by multiple contiguous links able to act on a product to draw it. The auxiliary chain is interposed between the relative track and support the auxiliary chain including multiple contiguous links, each link including an idler roll equipped with an axial hole, a join pin and two connection elements each suitable to cooperate with a respective end of the idler roll.

Abstract: A coil tubing hanger system and a method of installing such system is provided. The coil tubing hanger system comprises a body having an axial opening there through. A slip bowl having a base and housing a slip that can be retained in a first position spaced apart from bowl base and a second position proximate the bowl base is fitted within the opening. The slip has inner teeth. Tubing is fitted within the slip and through the bowl while the slip is retained in the first position. The slip is then allowed to drop to the second position such that the slip teeth bite onto the outer surface of the tubing.

Abstract: A tubing centralizer for borehole drilling disclosed. The centralizer includes a retaining collar and an outer sleeve. In a method for installing the centralizer onto a joint of tubing, the retaining collar is mounted onto the joint of tubing and the outer sleeve is installed thereover.

Abstract: A means and method for improving the injection of coiled tubing into and from a well by providing a secondary injection device for supplementing the thrust forces of the primary injector means. Use of the secondary injection device coacting in tandem with the coiled tubing injector permits developing significantly higher axial forces in the tubing than can be provided by the primary injector alone. The selectably operable thrust enhancement device of this invention provides a short, repeatable stroke in either direction. The thrust enhancement device operates by selectably gripping the tubing with a reciprocably moveable means in a first position, shifting the moveable means to a second position thereby moving the tubing, gripping the tubing with a static means at its new position, releasing the tubing from the moveable means, and returning the moveable means to its first position. When the thrust enhancement device is not needed for the injection operation, its gripping means are disengaged from the tubing.

Abstract: A string of pipe formed by the connection together of multiple joints of shorter pipe segments is stored in the water space adjacent an offshore drilling rig. The pipe string bends from the drilling rig floor in a semicircular arc and enters the water adjacent the drilling rig. A curving guide is used to direct the pipe string movement. A platform extension from the corner of the drilling rig is provided to position a work area above the point at which the pipe enters the water. Multiple guides may be employed for simultaneously running two strings of pipe. The string may be stored in one or more long sections or in a single continuous string. The major portions of the string or long pipe sections may be stored below the surface of the water. Provision is made for pumping fluids through the pipe string, and/or the pipe sections, to the well. The string may be stored in a sleeve.

Abstract: Apparatus for applying torque to a first tubular relative to a second tubular, the apparatus comprising a first tong for gripping the first tubular and a second tong for gripping the second tubular, wherein the first tong is provided with teeth around a peripheral surface thereof, the second tong is provided with at least one pinion, and the pinion meshes with the teeth in such a way that the first tong and the second tong can be rotated relative to one another when the pinion is rotated. The apparatus may include a positioning apparatus for determining the position of the tubular relative to the tong. The positioning apparatus comprising a plunger movably disposed on a base and coupled to a visual indicator. The plunger includes a contact member disposed at one end, whereby contact with the tubular causes the plunger to move along the base and the distance traveled is indicated by the visual indicator. The apparatus may further include a torque measuring flange.

Abstract: An apparatus for handling a plurality of tubular members. The apparatus comprises A tong member for coupling a first tubular with a second tubular. A first axial roller is positioned on the first side of the tong member and a second axial roller is positioned on the second side of the tong member. A hydraulic power pack is used to provide power to the first roller, the second roller, and the tong member. A first Y-frame roller is positioned on the first side of the tong means, and a second Y-frame roller positioned on the second side of the tong member. In the preferred embodiment, the axial and Y-frame rollers are connected to a support member, with the first axial roller being configured for movement of the plurality of tubular members in a longitudinal direction and the second Y-frame rollers being configured for movement of the plurality of tubular member in a radial direction.

Abstract: A mounting device for mounting a Christmas tree on a wellhead at sea, for use during a lowering of the Christmas tree from a platform to a drilling template which is located on the seabed. The mounting device includes an adaptor with end sections for connection with respective sections of the drilling template and the Christmas tree. The end sections of the adaptor have alignment bodies which are arranged for engagement with coacting alignment bodies of the drilling template and the Christmas tree.

Abstract: A means and method for supporting and applying transverse loads to coiled tubing during its injection into and withdrawal from a well by using novel rollers having coaxial segmented arcuate faces. The arcuate faces have arcs with the same radius as that of the tubing to be supported and are mutually concentric, but are independently rotatable. The novel rollers may be both driven and undriven.

Abstract: A centralizer for guiding a well servicing tool through the bore of a BOP stack or the like and into a radially eccentric position within a wellhead assembly, the centralizer comprising a mandrel having a top end which is connected to a running string and a bottom end to which the well servicing tool is connected, a collar having at least one eccentric hole through which the mandrel extends, the collar being rotatably connected to the mandrel, and an energy absorbing bumper supported above the collar and having at least one opening in alignment with the hole in the collar through which the top end of the mandrel projects; wherein the distance between the center of the collar and the center of the eccentric hole is selected to correspond to the radial distance between the center of the BOP bore and the eccentric position within the wellhead assembly; and wherein the outer diameters of both the collar and the bumper are selected to be only slightly smaller than the diameter of the BOP bore; such that the collar

Abstract: An apparatus for handling a plurality of tubular members. The apparatus comprises A tong member for coupling a first tubular with a second tubular. A first axial roller is positioned on the first side of the tong member and a second axial roller is positioned on the second side of the tong member. A hydraulic power pack is used to provide power to the first roller, the second roller, and the tong member. A first Y-frame roller is positioned on the first side of the tong means, and a second Y-frame roller positioned on the second side of the tong member. In the preferred embodiment, the axial and Y-frame rollers are connected to a support member, with the first axial roller being configured for movement of the plurality of tubular members in a longitudinal direction and the second Y-frame rollers being configured for movement of the plurality of tubular member in a radial direction.