WO2017147667A1 - Conector hidráulico de cabeça de poço - Google Patents
Conector hidráulico de cabeça de poço Download PDFInfo
- Publication number
- WO2017147667A1 WO2017147667A1 PCT/BR2016/050045 BR2016050045W WO2017147667A1 WO 2017147667 A1 WO2017147667 A1 WO 2017147667A1 BR 2016050045 W BR2016050045 W BR 2016050045W WO 2017147667 A1 WO2017147667 A1 WO 2017147667A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hydraulic
- locking
- piston
- hydraulic connector
- connector according
- Prior art date
Links
- 238000000034 method Methods 0.000 claims description 13
- 230000036316 preload Effects 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000605 extraction Methods 0.000 description 3
- 241000191291 Abies alba Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/035—Well heads; Setting-up thereof specially adapted for underwater installations
- E21B33/038—Connectors used on well heads, e.g. for connecting blow-out preventer and riser
Definitions
- the present invention is a hydraulic connector for providing connection between equipment installed on land or sea surface as well as between equipment installed in an underwater environment. More specifically, the present invention relates to a hydraulic connector for providing connection between remotely installed equipment at great depths in subsea applications for oil extraction.
- the hydraulic connector according to the present invention is of the "Titus” type which, among other applications, include ANM (Wet Christmas Tree) connection with the underwater wellhead, MCV (Vertical Connection Module) connector with PLET (Pipeline). End Termination).
- the present invention also relates to a process for realizing a hydraulic connection using said hydraulic connector.
- Submarine hydraulic connectors have the function of making a rigid connection between two equipment and making the consequent sealing between them.
- the locking of the connector is accomplished by driving a hydraulic piston which, through a force transmission mechanism, generates a connector design preload necessary for its proper operation.
- the first connector concept utilizes a parallel locking system where interference is generated through a mounting adjustment system. This interference produces the preload defined in the connector design for a proper functioning.
- This concept is applied to the connectors disclosed in the prior art documents CA1224410, US2003 / 0151254 and US2005 / 0001427.
- the second connector concept currently in use has a self-locking friction system for locking and the consequent rigid connection between two devices. This type of connector requires fewer components and is much more dependent on friction between surfaces when applying connector design preload.
- Prior art documents US4516795, US6070669, US7614453 and US 8474537 disclose this type of hydraulic connector.
- wellhead connectors are designed to connect a BOP (BIow Out Preventer) to the wellhead, either directly or indirectly via flow-line.
- BOP Biow Out Preventer
- such connectors typically include an annular main body that is aligned and axially connected to the underwater wellhead.
- the connector is commonly provided with a cam ring which moves radially due to a hydraulic actuator, usually a hydraulically actuated piston, forcing the cam ring and hence the tongs for locking or unlocking purposes. .
- connection to wellheads consisted of a generally "C” shaped clamp with a single contact surface. Subsequently, connections with H4 profiles were designed which are characterized by better distributing the stresses compared to those used with single surface.
- US4496172 discloses a connector comprising jaws driven by a cam ring that moves parallel to the locking ring, being connected to piston rods in cylinders, for example. through an annular plate.
- the pistons are actuated remotely and preferably by hydraulic fluid lines.
- Document GB2480571 also illustrates a multi-profile profile connector that scales the load by profile for better connection reliability and less connector wear.
- US3096999 exemplifies a connector with a single contact surface profile.
- connectors may differ in size, shape, number of teeth, types of hydraulic actuators, locking systems, etc.
- Parallel locking connectors have, among others, a major technical drawback, which is the extreme dependence on a large number of components that allow the adjustment of the pressure required for mounting the equipment, also leading to a major drawback of installation costs. manufacture and assembly.
- friction locking connectors have extreme dependence between the preload and the coefficient of friction between the surfaces of the various connector components.
- the self-locking friction connector has a high sensitivity to manufacturing tolerances, making the connection susceptible to accidental unlocking, especially in the presence of vibration, which requires the connector to include a safety system to prevent accidental unlocking for obtaining greater reliability. This requirement for extra components and also for this type of connector creates a major technical drawback, which additionally promotes a significant increase in manufacturing costs, assembly and consequently the cost of operation.
- the hydraulic connector according to the present invention is of the "Titus” type and has parallel locking characteristics, but without requiring extra components for adjusting the locking pressure.
- the hydraulic connector of the present invention has an annular shape for wellhead application in subsea bed oil production and extraction operations, comprising parallel locking characteristics via primary locking lines and primary and secondary unlocking without This requires extra components to adjust the locking pressure.
- the hydraulic connector according to the present invention allows the connection between two cylindrical bodies (1) and (2) and comprises jaws (3) positioned and preloaded by a piston. hydraulic actuator (4) through the pressurization chamber (5).
- the hydraulic connector has redundancy in unlocking through the secondary hydraulic piston (6).
- Pressurization chambers (5), (7) and (8) are provided by sealing elements (9, 10, 11, 12), main (4) and secondary (6), outer sleeve (13) and bottom guide (14).
- the hydraulic connector of the present invention also comprises a split top cap (15) secured to the outer sleeve (13) by screws (16). Said split top cap (15) is also fixed to the upper cylindrical body (1), but through a split ring (17) whose two parts are preferably secured to each other by screws (18) positioned in the circumferential direction of said split ring (17). ).
- the process for making a hydraulic connection according to the present invention comprises locking the hydraulic connector according to the present invention, together with applying the specified preload, through hydraulic locking fluid lines (22) from from any source. This hydraulic fluid line (22) pressurizes the chamber (5) by actuating the main locking piston (4).
- the locking main piston (4) which has cylindrical faces (19), is then forced in vertical downward movement causing the interference of said cylindrical faces (19) with the internal diameters of the main piston (4) in the region, moving the jaws (3) in the radial direction so as to make the connection between the surfaces of the cylindrical bodies (1) and (2) thereby preloading the connection.
- the hydraulic pressure is removed and the equipment is locked without the need for external forces.
- Hydraulic connector unlocking occurs by pressurizing the primary (7) or secondary (8) unlocking chambers using the hydraulic fluid lines (21) and (23) respectively. This procedure forces the secondary piston (6) to act on the main piston (4) causing its vertical upward movement and releasing the load on the jaws (3), causing the jaws (3) to move radially outwards. returns to the unlocked position.
- the hydraulic connector according to the present invention utilizing locking together with the application of the specified preload, thus allows to dispense the extra components to the regulating system during the assembly procedure, in addition to ensure no accidental unlocking in the presence of vibration.
- the hydraulic connector of the present invention combines the advantages of parallel locking in the same equipment with the advantage of not requiring adjustment during assembly of the equipment assembly, while providing positive locking characteristics with the added advantage of not requiring additional components to perform the locking. locking pressure adjustment of the equipment.
- the multiple faces with parallel locking allow the reduction of the drive piston stroke and its lag during actuation also allows the reduction of the force required to lock the hydraulic connector.
- hydraulic connector object of the present invention has been designed, notably, for use in subsea equipment for rigid connection of two equipment such as wellhead, ANM, PLET, MCV, riser among others. many.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Earth Drilling (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP16720316.5A EP3425159B1 (en) | 2016-03-02 | 2016-03-02 | Hydraulic wellhead connector |
PCT/BR2016/050045 WO2017147667A1 (pt) | 2016-03-02 | 2016-03-02 | Conector hidráulico de cabeça de poço |
US16/081,220 US10767434B2 (en) | 2016-03-02 | 2016-03-02 | Hydraulic wellhead connector |
BR112018017207-3A BR112018017207B1 (pt) | 2016-03-02 | 2016-03-02 | Conector hidráulico e processo para realização de conexão hidráulica |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/BR2016/050045 WO2017147667A1 (pt) | 2016-03-02 | 2016-03-02 | Conector hidráulico de cabeça de poço |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017147667A1 true WO2017147667A1 (pt) | 2017-09-08 |
Family
ID=55910674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BR2016/050045 WO2017147667A1 (pt) | 2016-03-02 | 2016-03-02 | Conector hidráulico de cabeça de poço |
Country Status (4)
Country | Link |
---|---|
US (1) | US10767434B2 (pt) |
EP (1) | EP3425159B1 (pt) |
BR (1) | BR112018017207B1 (pt) |
WO (1) | WO2017147667A1 (pt) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018191803A1 (pt) * | 2017-04-18 | 2018-10-25 | Fmc Technologies Do Brasil Ltda | Conector hidráulico e processo para realização de conexão hidráulica |
US11828125B2 (en) | 2021-04-22 | 2023-11-28 | Onesubsea Ip Uk Limited | Connector assembly for multiple components |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021091555A1 (en) * | 2019-11-06 | 2021-05-14 | Fmc Technologies, Inc. | Collet-type wellhead connector system |
US11614190B2 (en) | 2020-08-13 | 2023-03-28 | Fmc Technologies, Inc. | Secondary unlock tool for subsea connectors |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3096999A (en) | 1958-07-07 | 1963-07-09 | Cameron Iron Works Inc | Pipe joint having remote control coupling means |
US3851897A (en) * | 1973-05-24 | 1974-12-03 | Rucker Co | Well connector |
US4496172A (en) | 1982-11-02 | 1985-01-29 | Dril-Quip, Inc. | Subsea wellhead connectors |
US4516795A (en) | 1982-01-28 | 1985-05-14 | Baugh Benton F | Torus type connector |
US4647254A (en) * | 1985-04-18 | 1987-03-03 | Mobil Oil Corporation | Marine riser structural core connector |
CA1224410A (en) | 1983-05-03 | 1987-07-21 | William M. Coffey | Subsea wellhead connector |
US6070669A (en) | 1997-02-15 | 2000-06-06 | Abb Vetco Gray Inc. | Adjustable wellhead connector |
US20030151254A1 (en) | 2002-02-11 | 2003-08-14 | Baugh Benton F. | Torus type connector |
US20050001427A1 (en) | 2003-05-20 | 2005-01-06 | Fmc Technologies, Inc. | Low profile connector |
US20050034870A1 (en) * | 2003-08-14 | 2005-02-17 | Buckle Kevin G. | Secondary release for wellhead connector |
US7614453B2 (en) | 2006-06-01 | 2009-11-10 | Cameron International Corporation | Stress distributing wellhead connector |
US8474537B2 (en) | 2008-07-09 | 2013-07-02 | Vetco Gray Inc. | High capacity wellhead connector having a single annular piston |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1913030A (en) * | 1931-06-17 | 1933-06-06 | Hux Frank | Packer attaching means |
US4424988A (en) * | 1981-12-28 | 1984-01-10 | Consumers' Gas Company Limited | Frangible pipe coupling |
US4902044A (en) * | 1989-05-04 | 1990-02-20 | Drill-Quip, Inc. | Well apparatus |
US20040102069A1 (en) * | 2002-11-21 | 2004-05-27 | Singeetham Shiva P. | Hydraulic connector |
CN104334823B (zh) * | 2012-04-05 | 2017-03-01 | 国民油井华高公司 | 具有活塞驱动套筒的井场连接器及其使用方法 |
US9650855B2 (en) * | 2013-03-15 | 2017-05-16 | Safestack Technology L.L.C. | Riser disconnect package for lower marine riser package, and annular-release flex-joint assemblies |
-
2016
- 2016-03-02 WO PCT/BR2016/050045 patent/WO2017147667A1/pt active Application Filing
- 2016-03-02 US US16/081,220 patent/US10767434B2/en active Active
- 2016-03-02 EP EP16720316.5A patent/EP3425159B1/en active Active
- 2016-03-02 BR BR112018017207-3A patent/BR112018017207B1/pt active IP Right Grant
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3096999A (en) | 1958-07-07 | 1963-07-09 | Cameron Iron Works Inc | Pipe joint having remote control coupling means |
US3851897A (en) * | 1973-05-24 | 1974-12-03 | Rucker Co | Well connector |
US4516795A (en) | 1982-01-28 | 1985-05-14 | Baugh Benton F | Torus type connector |
US4496172A (en) | 1982-11-02 | 1985-01-29 | Dril-Quip, Inc. | Subsea wellhead connectors |
CA1224410A (en) | 1983-05-03 | 1987-07-21 | William M. Coffey | Subsea wellhead connector |
US4647254A (en) * | 1985-04-18 | 1987-03-03 | Mobil Oil Corporation | Marine riser structural core connector |
US6070669A (en) | 1997-02-15 | 2000-06-06 | Abb Vetco Gray Inc. | Adjustable wellhead connector |
US20030151254A1 (en) | 2002-02-11 | 2003-08-14 | Baugh Benton F. | Torus type connector |
US20050001427A1 (en) | 2003-05-20 | 2005-01-06 | Fmc Technologies, Inc. | Low profile connector |
US20050034870A1 (en) * | 2003-08-14 | 2005-02-17 | Buckle Kevin G. | Secondary release for wellhead connector |
US7614453B2 (en) | 2006-06-01 | 2009-11-10 | Cameron International Corporation | Stress distributing wellhead connector |
GB2480571A (en) | 2006-06-01 | 2011-11-23 | Cameron Int Corp | Stress distributing wellhead connector |
US8474537B2 (en) | 2008-07-09 | 2013-07-02 | Vetco Gray Inc. | High capacity wellhead connector having a single annular piston |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018191803A1 (pt) * | 2017-04-18 | 2018-10-25 | Fmc Technologies Do Brasil Ltda | Conector hidráulico e processo para realização de conexão hidráulica |
US10975652B2 (en) | 2017-04-18 | 2021-04-13 | Fmc Technologies Do Brasil Ltda | Hydraulic connector and process for performing hydraulic connection |
EP3613941B1 (en) * | 2017-04-18 | 2022-11-09 | FMC Technologies Do Brasil LTDA | Hydraulic connector and method for achieving a hydraulic conection |
US11828125B2 (en) | 2021-04-22 | 2023-11-28 | Onesubsea Ip Uk Limited | Connector assembly for multiple components |
Also Published As
Publication number | Publication date |
---|---|
EP3425159B1 (en) | 2022-11-30 |
BR112018017207A2 (pt) | 2019-01-02 |
BR112018017207B1 (pt) | 2022-07-26 |
US10767434B2 (en) | 2020-09-08 |
EP3425159A1 (en) | 2019-01-09 |
US20190085650A1 (en) | 2019-03-21 |
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