WO2013006963A1 - Dispositif rotatif de régulation d'écoulement à l'intérieur d'une colonne montante - Google Patents

Dispositif rotatif de régulation d'écoulement à l'intérieur d'une colonne montante Download PDF

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Publication number
WO2013006963A1
WO2013006963A1 PCT/CA2012/000674 CA2012000674W WO2013006963A1 WO 2013006963 A1 WO2013006963 A1 WO 2013006963A1 CA 2012000674 W CA2012000674 W CA 2012000674W WO 2013006963 A1 WO2013006963 A1 WO 2013006963A1
Authority
WO
WIPO (PCT)
Prior art keywords
riser
stationary housing
bearing assembly
flanged
pipe
Prior art date
Application number
PCT/CA2012/000674
Other languages
English (en)
Inventor
Michael Boyd
Original Assignee
Michael Boyd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Michael Boyd filed Critical Michael Boyd
Priority to US14/232,512 priority Critical patent/US20140238686A1/en
Priority to CA2841609A priority patent/CA2841609A1/fr
Publication of WO2013006963A1 publication Critical patent/WO2013006963A1/fr

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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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/01—Risers
    • 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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/08—Wipers; Oil savers
    • E21B33/085—Rotatable packing means, e.g. rotating blow-out preventers
    • 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
    • E21B34/00—Valve arrangements for boreholes or wells

Definitions

  • the present invention relates to a rotating flow control device, and more particularly to a rotating flow control device for use inside a riser.
  • the riser consists of a string of pipe that extends from a floating drilling platform down to the sea floor.
  • the riser string is comprised of lengths of riser pipe that are attached end to end by means of flanged or custom connections. Drilling mud, cuttings and hydrocarbon products from the borehole in the seafloor are returned to the drilling platform through the riser.
  • the top of the riser is attached to the drilling platform while its lower end is secured to the wellhead on the seafloor.
  • the riser Immediately below the drilling platform, the riser has a slip joint, or tension joint as it is also known, that is configured to telescope to compensate for the heave and swell that the floating drilling platform experiences in the sea.
  • a blow out preventer hereafter a "BOP" is placed between the wellhead and the riser to provide protection against the sudden release of gas which can arise if the drilling operations encounter pressurized formations.
  • BOP blow out preventer
  • a second BOP is also frequently placed at the top of the riser proximate to the drilling platform.
  • a rotating flow control device hereafter a "RFCD"
  • the RFCD serves multiple purposes including the provision of a pressure seal around drill pipe that is being moved in and out of the riser and the wellbore while allowing rotation of same.
  • Conventional diverters are also placed at the head of the riser above the slip joint to divert wellbore returns to the surface separation and storage equipment.
  • the RFCD of the present invention seeks to mitigate these problems by being positioned in the riser string in a position below the drilling platform and the weakest pressure rated assembly in the riser string, namely the slip joint, thus giving the riser string a greater typical pressure integrity.
  • the RFCD of the present invention creates a pressure seal that isolates the pressurized wellbore returns in the riser below the drilling platform such that it can be contained and diverted if required at a subsurface level thereby substantially eliminating the exposure of the drilling platform to danger.
  • the RFCD of the present invention provides an additional safety system to compliment the surface level BOP and RCFD.
  • a subsurface RFCD is described in US 2006/0102387 to Bourgoyne et al.
  • such device is integrated in the riser string such that its housing forms part of the riser string and is therefore load bearing.
  • Mechanical stress and pressure loads on the riser string which has an inclination to move with the swell of the surrounding water, can impede the mechanical performance of the RFCD and can compromise its pressure integrity.
  • a RFCD that can be used to create an additional pressure seal between the wellbore and the external environment which can be mounted in the riser assembly in a position that is below the slip joint and the drilling platform.
  • the RFCD should be configured such that it is not a load bearing component of the riser string, thereby mitigating the risk of mechanical failure due to load stress on the riser string. It would be preferable if the bearing assembly of the apparatus could be installed and un-installed remotely for maintenance, and if the device were robust and relatively simple.
  • the invention comprises a rotating flow control device apparatus for use inside a riser, the riser comprising a string of riser pipes, each such riser pipe having two ends whereby the ends of adjacent riser pipes are interconnected to form the string, the apparatus comprising; (a) a tubular stationary housing mounted inside the riser, the stationary housing having a first end and a second end, the second end having a connector, the connector being adapted to form part of the interconnection between the ends of two interconnected adjacent riser pipes whereby the second end of the stationary housing is rigidly attached to the riser and the first end of the stationary housing is contained within but not attached to the riser;
  • a removable bearing assembly releasably mounted on the stationary housing, the bearing assembly comprising an outer housing, and an axially rotatable inner tubular shaft;
  • the ends of the riser pipe are flanged and the connector at the second end of the stationary housing is flanged.
  • the flanged connector of the stationary housing is sandwiched between the flanged ends of the interconnected adjacent riser pipes.
  • the flanged connector and the flanged ends of the riser pipe have aligned bolt holes and bolts are employed to secure the interconnection.
  • the bearing assembly is releasably mounted on the stationary housing by means of a moveable latch projecting from the stationary housing that engages a complementary pocket in the outer housing of the bearing assembly.
  • the moveable latch is spring loaded.
  • the moveable latch may be actuated remotely using hydraulic pressure or pneumatic pressure.
  • the riser further comprises a slip joint and the apparatus is mounted in the riser beneath the slip joint.
  • the stripper element is elastomeric.
  • the invention comprises a system for controlling pressurized wellbore returns in a riser extending from a surface drilling platform to a subsea wellhead, the system comprising;
  • the at least one port of the flow spool being connected to a pipe extending to the surface and whereby the at least one port may be selectively opened and closed remotely from the drilling platform.
  • the invention comprises a rotating flow control device apparatus for use inside a conventional riser pipe, the riser pipe having a first end and a second end, the apparatus comprising;
  • a bearing assembly comprising an outer housing, and an axially rotatable inner tubular shaft, the bearing assembly being releasably mounted on the stationary housing;
  • the ends of the riser pipe are flanged and the second end of the stationary housing forms a complementary flanged connector.
  • the bearing assembly is releasably mounted on the stationary housing by means of a moveable latch projecting from the stationary housing that engages a complementary pocket in the outer housing of the bearing assembly.
  • Figure 1 is a diagrammatic depiction of one embodiment of an offshore drilling operation including a riser having a rotating flow control device of the present invention.
  • Figure 2 is a diagrammatic view through a vertical cross section of one embodiment of the apparatus of the present invention.
  • Figure 3 is a diagrammatic view through a vertical cross section of a riser with one embodiment of the apparatus of the present invention mounted therein.
  • Figure 4 is a diagrammatic depiction of the flanged interconnection of two adjacent sections of riser pipe with the flanged connection of one embodiment of the apparatus of the present invention sandwiched therebetween.
  • Figure 5 is a diagrammatic depiction of a portion of a riser string with a vertical cross sectional view of one embodiment of the apparatus of the present invention.
  • the invention relates to a rotating flow control device ("RFCD") for use in the riser of an offshore drilling operation.
  • RFCD rotating flow control device
  • the riser (50) extends from the drilling platform (51 ) down to the sea floor (53).
  • the drilling platform (5 1) may comprise a floating rig or a drill ship, or any like surface platform employed by the offshore drilling industry.
  • a BOP stack (60) is landed on and secured to the well head (not shown in the figures).
  • the BOP (60) is connected to the riser (50) which extends to the drilling platform (51).
  • the blow out preventer (60) is tested to ensure operational functionality following which, drilling operations commence through the riser (50) in an incremental manner.
  • Drill pipe (not shown) is lowered down through the riser (50) and drilling mud is injected down through the drill pipe. Drilling mud, cuttings and hydrocarbon returns from the borehole travel up to the drilling platform (51 ) through the riser (50).
  • the riser (50) Immediately below the drilling platform (51), the riser (50) has a slip joint (54) that is configured to telescope in an open and closed fashion to compensate for the heave and swell that the floating drilling platform (51 ) experiences in the sea.
  • the slip joint (54) prevents the riser (50) from being pulled or pushed off the well head as the drilling platform (51 ) raises and lowers with the movement of the sea.
  • the riser (50) is comprised of a string of interconnected sections of riser pipe (70). Commonly the riser pipe sections (70) are flanged at each end. The flanged ends of the riser pipe sections (72) attach in a complementary manner and are secured by bolts (74) as shown in Figures 4 and 5.
  • bolts (74) as shown in Figures 4 and 5.
  • flanged riser pipe ends is not intended to be limiting of the invention claimed herein and it will be understood by one skilled in the art that there are other suitable means for connecting the ends of riser pipes that are employed in the industry.
  • the apparatus of the present invention may also be used with riser pipe having such other connection means.
  • a second BOP (65) may be employed proximate to the drilling platform (51 ).
  • a RFCD (67) at the head on the riser on the drilling platform (51 ).
  • the surface RFCD (67) serves multiple purposes including the provision of a pressure seal around tubular are being tripped in and out of the riser (50), and ultimately the wellbore (64) itself, while allowing rotation of the tubulars.
  • a conventional diverter (56) is also placed at the head of the riser (50) beneath the surface RFCD (67) to divert wellbore returns from the riser (50) to the surface separation and storage equipment (not shown).
  • the present invention seeks to mitigate these problems by positioning a RFCD apparatus ( 10) in the riser (50) in a position below both the drill platform (51 ) and the weakest pressure rated assembly in the riser string, namely the slip joint (54), thus giving the riser (50) a much greater typical pressure integrity.
  • a riser (50) employing the apparatus of the present invention ( 10) may have a pressure integrity of up to 1500 psi.
  • the RFCD of the present invention (10) creates a pressure seal that isolates the pressurized wellbore returns in the riser (50) below the drilling platform (5 1 ) such that it can be contained and diverted if required at a subsurface level thereby substantially eliminating the exposure of the drilling platform to danger.
  • the RFCD of the present invention ( 10) provides an effective additional safety system to compliment the surface level diverter (56), BOP (65) and the surface RFCD (67).
  • a rotating flow control device typically consists of rubber strippers or sealing elements and an associated hollow quill that rotates with the drill string within a robust housing.
  • Rotation of the strippers and the hollow quill is facilitated by a bearing assembly having an inner race that rotates with the drill string and an outer race that remains stationary with the housing.
  • the bearing assembly is isolated from the corrosive wellbore fluids and gases by seals.
  • FIG 2 depicts one embodiment of a RFCD (10) of the present invention.
  • the rotating flow control device (10) comprises a stationary housing (14) having a first end ( 1 1 ) and a second end (13).
  • the second end (13) has a connector (16) adapted to rigidly attach to the riser (50) by forming part of the interconnection between sections of adjacent riser pipes (70).
  • the connector (16) at the second end of the stationary housing (13) is formed into a flange connection, to operatively connect with the flanged ends (72) of sections of riser pipe (70).
  • the connector (16) at the second end of the stationary housing (13) does not have to be restricted to only a flanged connector with bolt holes and may be configured to be complementary to any type of connection system that is being employed to connect the ends of sections of adjacent riser pipe provided that a rigid attachment to the riser (50) at the second end of the stationary housing (13) can be achieved.
  • the stationary housing ( 14) has a bore (28) for receiving fluid and gas from the riser (50) and wellbore (64).
  • the RFCD (10) has a sealed bearing assembly (15) having an axially rotatable inner tubular shaft (12) disposed therein.
  • the inner tubular shaft (12) has an elastomeric stripper element (18) supported at a downhole end of the inner tubular shaft (12).
  • the stripper element (18) is well known in the industry and may be constructed from any suitable rubber, elastomer or polymer substance.
  • the bearing assembly (15) has a robust outer housing (22).
  • the bearing assembly outer housing (22) and the inner tubular shaft (12) form an annular space (24) disposed in which is a bearing element (not shown).
  • the bearing elements may comprise any suitable type used for like purposes by those skilled in the art, and may be arranged in any manner in the annular space (24) that provides appropriate axial and radial support to the inner tubular shaft (12). Any suitable lubricating fluid may be utilized in the annular space to cool and lubricate the bearing element.
  • the bearing element is isolated from the wellbore fluid by a lower seal (20). As shown in Figure 2, the elastomeric stripper element (18), the lower seal (20) and the outer housing (22) of the bearing assembly (15) form a pressure seal on a tubular.
  • the stationary housing ( 14) and the outer housing of the bearing assembly (15) and the inner tubular shaft (12) may be constructed from any suitable metallic material including, without limit, 41/30 alloy steel.
  • a flow spool (58) having one or more ports or outlets is positioned in the riser string beneath the RFCD (10).
  • the flow spool (58) is connected to pipes or hoses (59) which travel to the surface for the selective discharge of well fluids and gases.
  • the outlets in the flow spool (58) may be opened and closed remotely using surface controls to facilitate the selective venting and diversion of the well bore returns.
  • the stationary housing (14) defines a pocket (33) containing a spring (29) loaded metal finger or latch (30).
  • the springs (29) are biased to urge the latch (30) in a direction towards the interior of the housing ( 14).
  • the embodiment shown depicts one continual ring shaped latch, however, in an alternative embodiment there may be a plurality of discrete individual latches.
  • the outer housing (22) of the bearing assembly (15) defines a complementary recess or pocket (31 ) that receives the latch (30) (or a plurality of pockets to receive a plurality of latches as the case may be).
  • the latch (30) is hydraulically or pneumatically actuated remotely from the drilling platform.
  • an operator may remove and reinstall the bearing assembly (15) and associated inner tube ( 12) and stripper element (18) by using pneumatic or hydraulic pressure to cycle the spring loaded latches (30).
  • the latch (30) When the latch (30) is engaged in the pocket (31 ) of the outer housing (22) of the bearing assembly (15), the bearing assembly (15) and associated inner tube (12) will be securely held in place in the stationary housing (14) creating a pressure seal in the riser (51).
  • Activation of the hydraulic or pneumatic pressure will cause the latches (30) to retract by comparing the springs (29) and the bearing assembly ( 15), inner tube (12) and elastomeric stripper element ( 18) may be removed through the riser (51 ).
  • This arrangement facilitates easy removal for maintenance and parts replacement.
  • the bearing assembly ( 15) and associated inner tube (12) may be lowered from the drilling platform down the riser string (50) to the stationary housing (14) when required on a tubular string. Once in place, pressure on the latches (30) is released allowing the springs (29) to urge the latches (30) into the pockets in the outer housing (22) of the bearing assembly (15) to secure the bearing assembly (15) in place.
  • the bearing assembly ( 15) and associated inner tube ( 12) may be removed following the reverse operation. If the stripper element (18) is not too compromised, removal may be effected using a tubular, however, if the stripper element (18) is unable to form an adequate seal on a tubular, then a recovery tool may be used for removal.
  • the connector (16) is configured to comprise a flange connection as shown in the Figures, it can be an API flange or can be custom sized to match riser pipe flange connections. As shown in Figures 4 and 5, in one embodiment, the flanged connector (16) of the stationary housing (14) of the rotating flow control device (10) is sandwiched between the flanges (72) of two adjacent riser pipe sections (70).
  • Bolts (74) extend through bolt holes (75) and hold the three flanged elements together.
  • the rotary flow control device (10) of the present invention may be mounted anywhere in the riser string where there is such a flanged connection.
  • Figure 1 depicts the apparatus of the present invention (10) in a riser string.
  • the apparatus (10) provides a seal on drill pipe or casing that is being run into or out of the wellbore (64) and provides an additional pressure barrier between the external environment and the wellbore (64) at a subsea level below the drilling platform (51). It also isolates the relatively weak slip joint (54) from pressurized well bore returns.
  • the RFCD ( 10) of the present invention will form a pressure seal thus precluding exposure of the slip joint (54) and the drilling platform (51) components to the pressurized fluid or gas. If venting is required to reduce the pressure in the riser (50) beneath the RFCD (10), ports in the flow spool (58) may be opened and the associated hose or pipe (59) will conduct the vented substances to a location that is a safe distance from the drilling platform. In this manner the RFCD (10) and the flow spool (58) comprise a system for controlling pressurized wellbore returns in a riser.
  • the RFCD (10) of the present invention may be employed for well control operations, to promote safety and to mitigate environmental concerns and to manage high pressure drilling activities.
  • inventions of the internal positioning of the apparatus (10) within the riser (50) include the ability to remotely install and remove the bearing assembly (15), outer housing (22), the inner tubular shaft (12) and the stripper element (18), and the protection of the apparatus (10) from the external sea water environment. Furthermore, the use of a stationary housing (14) that is adapted to mount between the ends of adjacent sections of riser pipe enables the apparatus (10) to operate within the riser (50) without forming an active part of the load path of the riser (50). It can also be understood, the apparatus of the present invention may be mounted within any conventional riser pipe and that it would relatively
  • the apparatus of the present invention is relatively simple and economical to use.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

L'invention concerne un dispositif rotatif de régulation d'écoulement et, plus particulièrement, un dispositif rotatif de régulation d'écoulement destiné à être utilisé à l'intérieur d'un ensemble de colonne montante au cours d'activités de forage en mer. Le dispositif rotatif de régulation d'écoulement comprend un corps fixe conçu pour être monté entre les extrémités reliées du tube goulotte. L'ensemble support du dispositif rotatif de régulation d'écoulement est totalement positionné à l'intérieur du tube goulotte et peut être désolidarisé et retiré à distance du corps fixe. Le dispositif rotatif de régulation d'écoulement peut être positionné dans la colonne montante de manière à isoler efficacement le joint coulissant de la colonne montante des renvois de forage de puits sous pression.
PCT/CA2012/000674 2011-07-14 2012-07-16 Dispositif rotatif de régulation d'écoulement à l'intérieur d'une colonne montante WO2013006963A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US14/232,512 US20140238686A1 (en) 2011-07-14 2012-07-16 Internal riser rotating flow control device
CA2841609A CA2841609A1 (fr) 2011-07-14 2012-07-16 Dispositif rotatif de regulation d'ecoulement a l'interieur d'une colonne montante

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161507873P 2011-07-14 2011-07-14
US61/507,873 2011-07-14

Publications (1)

Publication Number Publication Date
WO2013006963A1 true WO2013006963A1 (fr) 2013-01-17

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PCT/CA2012/000674 WO2013006963A1 (fr) 2011-07-14 2012-07-16 Dispositif rotatif de régulation d'écoulement à l'intérieur d'une colonne montante

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Country Link
US (1) US20140238686A1 (fr)
CA (1) CA2841609A1 (fr)
WO (1) WO2013006963A1 (fr)

Cited By (7)

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EP2896781A1 (fr) * 2014-01-20 2015-07-22 Weatherford/Lamb Inc. Dispositif de commande de rotation disposant d'un démarrage pour ligne auxiliaire de colonne montante
EP3152388A4 (fr) * 2014-06-09 2017-11-29 Weatherford Technology Holdings, LLC Colonne montante comportant un dispositif rotatif de régulation de débit interne
US10012044B2 (en) 2014-11-18 2018-07-03 Weatherford Technology Holdings, Llc Annular isolation device for managed pressure drilling
US10018012B2 (en) 2011-09-14 2018-07-10 Weatherford Technology Holdings, Llc Rotating flow control device for wellbore fluid control device
US10435980B2 (en) 2015-09-10 2019-10-08 Halliburton Energy Services, Inc. Integrated rotating control device and gas handling system for a marine drilling system
US10774599B2 (en) 2013-12-19 2020-09-15 Weatherford Technology Holdings, Llc Heave compensation system for assembling a drill string
GB2590738A (en) * 2019-12-30 2021-07-07 Ntdrill Holdings Llc Deployment tool and deployment tool assembly

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WO2013185227A1 (fr) 2012-06-12 2013-12-19 Elite Energy Ip Holdings Ltd. Déflecteur rotatif de réglage de débit ayant des éléments racleurs doubles
NO347257B1 (en) 2013-12-30 2023-08-14 Halliburton Energy Services Inc Method and system for drill tool insert removal
BR112020011247B1 (pt) 2017-12-12 2023-11-14 Ameriforge Group Inc Método para monitoramento de condição de vedação para um sistema de vedação anular
US10808487B2 (en) 2018-08-03 2020-10-20 Nabors Drilling Technologies Usa, Inc. Quick disconnect stripper packer coupling assembly
US10941629B2 (en) * 2018-08-03 2021-03-09 Nabors Drilling Technologies Usa, Inc. Rotating control device having a locking block system
US10724325B2 (en) 2018-08-03 2020-07-28 Nabors Drilling Technologies Usa, Inc. Rotating control device having locking pins for locking a bearing assembly
US10858904B2 (en) * 2018-08-03 2020-12-08 Nabors Drilling Technologies Usa, Inc. Rotating control device having an anti-rotation locking system
WO2020081175A1 (fr) 2018-10-19 2020-04-23 Ameriforge Group Inc. Système faisant étanchéité annulaire et joint de colonne montante de forage à pression contrôlée intégré
EP3874119B1 (fr) 2018-11-02 2023-08-30 Grant Prideco, Inc. Systèmes d'étanchéité annulaires statiques et joints de colonne montante de forage à pression commandée intégrés pour environnements hostiles

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Publication number Priority date Publication date Assignee Title
US10018012B2 (en) 2011-09-14 2018-07-10 Weatherford Technology Holdings, Llc Rotating flow control device for wellbore fluid control device
US10774599B2 (en) 2013-12-19 2020-09-15 Weatherford Technology Holdings, Llc Heave compensation system for assembling a drill string
US11193340B2 (en) 2013-12-19 2021-12-07 Weatherford Technology Holdings, Llc Heave compensation system for assembling a drill string
EP2896781A1 (fr) * 2014-01-20 2015-07-22 Weatherford/Lamb Inc. Dispositif de commande de rotation disposant d'un démarrage pour ligne auxiliaire de colonne montante
US9422776B2 (en) 2014-01-20 2016-08-23 Weatherford Technology Holdings, Llc Rotating control device having jumper for riser auxiliary line
AU2015200185B2 (en) * 2014-01-20 2016-10-13 Weatherford Technology Holdings, Llc Rotating control device having jumper for riser auxiliary line
EP3152388A4 (fr) * 2014-06-09 2017-11-29 Weatherford Technology Holdings, LLC Colonne montante comportant un dispositif rotatif de régulation de débit interne
US10677004B2 (en) 2014-06-09 2020-06-09 Weatherford Technology Holdings, Llc Riser with internal rotating flow control device
US10012044B2 (en) 2014-11-18 2018-07-03 Weatherford Technology Holdings, Llc Annular isolation device for managed pressure drilling
US10435980B2 (en) 2015-09-10 2019-10-08 Halliburton Energy Services, Inc. Integrated rotating control device and gas handling system for a marine drilling system
GB2590738A (en) * 2019-12-30 2021-07-07 Ntdrill Holdings Llc Deployment tool and deployment tool assembly
US11473374B2 (en) 2019-12-30 2022-10-18 NTDrill Holdings, LLC Deployment tool and deployment tool assembly

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US20140238686A1 (en) 2014-08-28

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