EP3209593A1 - Systeme de compensation de pilonnement pour un element accroche a une installation mobile - Google Patents
Systeme de compensation de pilonnement pour un element accroche a une installation mobileInfo
- Publication number
- EP3209593A1 EP3209593A1 EP15759713.9A EP15759713A EP3209593A1 EP 3209593 A1 EP3209593 A1 EP 3209593A1 EP 15759713 A EP15759713 A EP 15759713A EP 3209593 A1 EP3209593 A1 EP 3209593A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- muffle
- pulley
- link
- axis
- length
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000009434 installation Methods 0.000 claims description 50
- 238000005553 drilling Methods 0.000 claims description 14
- 238000005259 measurement Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- VJYFKVYYMZPMAB-UHFFFAOYSA-N ethoprophos Chemical compound CCCSP(=O)(OCC)SCCC VJYFKVYYMZPMAB-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/002—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling
- E21B19/004—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling supporting a riser from a drilling or production platform
- E21B19/006—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling supporting a riser from a drilling or production platform including heave compensators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/02—Devices for facilitating retrieval of floating objects, e.g. for recovering crafts from water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/30—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/52—Details of compartments for driving engines or motors or of operator's stands or cabins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/40—Control devices
- B66D1/48—Control devices automatic
- B66D1/52—Control devices automatic for varying rope or cable tension, e.g. when recovering craft from water
-
- 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
- E21B19/002—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling
-
- 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
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
- E21B19/09—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods specially adapted for drilling underwater formations from a floating support using heave compensators supporting the drill string
Definitions
- the present invention relates to the field of motion compensation of a mobile element suspended from a mobile installation.
- the invention relates more particularly to the compensation of a heave movement of an offshore installation (offshore) for an offshore drilling tool, for a riser or for a tool for installing a sea pressure shutter block.
- the swell causes, among other effects, the heave, that is to say an oscillatory movement of vertical translation, floating devices.
- these support tools such as drilling tools, it is necessary to compensate the heave so that the tool is permanently in contact with the bottom of the hole.
- the type of device of the third family conventionally solves the problem of compensation for heave by making mobile a first muffle, said muffle fixed (in English "crown block”) and also includes a second muffle, said muffle mobile (in English "traveling block ").
- the first muffle is said fixed because it is fixed relative to the mobile installation and the second muffle is said to be mobile because it is mobile with respect to the mobile installation.
- the second muffle is made substantially fixed with respect to the seabed. It is recalled that a muffle is a mechanical device for lifting a load by several strands of cable.
- this type of device generally comprises at least one jack connected to accumulators, in particular pneumatic. These accumulators occupy a large volume, which is penalizing, in particular for an offshore application.
- the present invention relates to a motion compensation system for an element attached to a mobile installation, the system comprising two mittens, at least two articulated arms, a compensation cylinder, a cable.
- at least one characteristic length of the articulated system (for example: the length of a rod or the distance between two pulleys of two articulated arms) is controlled according to the movement to reduce the error and therefore improve the compensation some movement.
- the invention relates to a system for compensating a movement for an element attached to a mobile installation, said system comprising a first muffle and a second muffle for hanging said element, said first muffle being connected to said mobile installation by means of at least two articulated arms, each articulated arm comprising at least one pulley, said system comprising a cable fixed on holding means and passing through the pulleys of said articulated arms and by said first and second mittens, said system further comprising at least one compensation cylinder connected to said first muffle and said mobile installation.
- the system comprises means for adjusting at least a characteristic length of said articulated arms is adjusted according to said movement.
- each of said articulated arms comprises at least one link
- said characteristic length of said articulated arms is the length of said link and / or the horizontal distance separating the axes of said pulleys from said two articulated arms and / or the distance horizontal between the axis of said first muffle and the axis of said pulley said articulated arm and / or the vertical distance between the low position of the axis of said pulleys of said first muffle and the axis of said pulley of said articulated arm.
- each of said articulated arms comprises a return pulley connected to said mobile installation, an intermediate pulley, a first link between said return pulley and said intermediate pulley and a second link between said intermediate pulley and said first muffle.
- said adjusted characteristic length is determined by minimizing the error function defined by a formula of the form:
- V 0 reference volume of the compensation cylinder
- N number of pulleys
- said return pulley is connected to said mobile installation by controlled means of adjustable length.
- At least one of said links comprises a hydraulic cylinder, pneumatic or electric, controlled in position.
- only a length of a link or only the distance between the axes of said pulleys is controlled.
- said first and second muffles are aligned vertically and said movement is vertical.
- said mobile installation is an installation at sea, in particular a ship.
- said element is a drilling tool or a riser or a tool for laying parcels.
- said compensation cylinder is a pneumatic cylinder powered by at least one accumulator.
- said cable retaining means may comprise at least one winch.
- the invention relates to the use of a compensation system according to the invention for the support of drilling tools and / or for a riser and / or for a tool for installing a pressure shutter block at sea.
- Figure 1 illustrates a compensation system for two different positions.
- Figure 2 illustrates an articulated arm of a compensation system.
- FIG. 3 is a curve illustrating the variation of the length of a first link of an articulated arm as a function of the heave H.
- FIG. 4 is a curve illustrating the variation of the length of a second link of an articulated arm as a function of the heave H.
- the present invention relates to a motion compensation system for an element attached to a mobile installation.
- the compensation system comprises:
- a first muffle equipped with at least one pulley
- a second muffle on which is hung the element, the second muffle being equipped with at least one pulley; preferably the first and second muffles are aligned vertically,
- an articulated system comprising at least two articulated arms, preferably two or four arranged symmetrically, the articulated system connecting the mobile installation to the first muffle, each articulated arm comprising at least one pulley, a cable fixed by retaining means to the mobile installation and passing through the pulleys of the articulated arms and the first and second muffles, the cable forming at least one loop around the first and second mittens, the means for retaining the cable on the mobile installation may comprise at least one winch for adjusting the length of the cable, and at least one jack, said compensation cylinder, one end is connected to the first muffle and the other end is connected to the mobile installation; the cylinder is powered by at least one accumulator, for example by an oleopneumatic connection.
- the movement of the mobile installation (eg heave) is largely compensated by the movement of the first muffle relative to the mobile installation.
- the second muffle is stationary relative to a fixed reference.
- the movement of the first muffle is controlled by the compensation cylinder and is enabled by the articulated system.
- At least one characteristic length of the articulated system is adjustable and adjusted (driven) according to the movement, so as to reduce the compensation error and thus increase the compensation of the system.
- the characteristic length of the articulated system is adjusted continuously, in real time, during the use of the compensation system.
- the adjusted characteristic length (controlled) depends on the geometry (design) of the articulated system. This is a design length of the articulated system that is variable. This characteristic length is not a distance that varies by the displacement of the compensation cylinder. It may be the length of one of the parts of the articulated system, for example a link, or the distance of a pulley from the system articulated to the axis of the mittens, or the distance between two pulleys of the articulated system.
- the characteristic lengths of the articulated system are adjusted (controlled) simultaneously in the same way, if the system is symmetrical.
- the characteristic length is therefore variable, which is contrary to the compensation systems of the prior art, for which the characteristic lengths (lengths of parts, pulley-muffle distances, pulley-pulley distances) are constant. In the remainder of the description, the compensation system is described in the case of offshore use.
- FIG. 1 represents a compensation system according to one embodiment of the invention in two positions (low in FIG. 1a, and high in FIG. 1b) as a function of the sea level.
- the compensation system 1 is installed on an offshore mobile facility.
- the compensation system allows to hang an element (not shown) on a second muffle 3 via a hook.
- the compensation system 1 further comprises a first muffle 2, two articulated arms 4 connected on the one hand to a support 13 connected to the mobile installation and secondly to the first muffle 2, two compensation cylinders 5 connected to accumulators 1 1 by means of an oleopneumatic system 12 which serves as an interface between the hydraulic cylinders 5 and the pneumatic accumulators 1 1 and a cable 10 passing through the pulleys of the articulated arms 4 and the first and second muffles 2 and 3.
- the cylinders 5 are connected to the mobile installation 13 and the first muffle 2. As shown, the first muffle 2 , the second muffle 3 and the hung element are aligned vertically, and the movement to compensate is a vertical movement.
- each articulated arm 4 comprises a return pulley 6 connected to the mobile installation 13, an intermediate pulley 7, a first link 8 between the return pulley 6 and the intermediate pulley 7 and a second link 9 between the intermediate pulley 7 and the first muffle 2.
- each articulated arm may be formed of connecting rods connecting pulleys.
- each articulated arm may comprise a return pulley connected to the mobile installation, an intermediate pulley, a first link between the return pulley and the intermediate pulley, and a second link between the intermediate pulley and the first muffle.
- each articulated arm may further comprise a second intermediate pulley, and a third link between the two intermediate pulleys.
- the characteristic length of the articulated system which is adjustable and adjusted according to the movement, can be in particular the length of one of the links of the articulated system, the horizontal distance between the axis of the pulleys of the first muffle and the return pulley, etc.
- the rods may be of adjustable length, and may include pneumatic cylinders, hydraulic or electric.
- the power supply pneumatic, hydraulic or electric
- the rods of adjustable size can be implemented by mechanical devices comprising a spring.
- each return pulley can be connected to the mobile installation by controlled means of adjustable length, in particular an electric, pneumatic or hydraulic jack for varying the horizontal and / or vertical distance. the axis of the pulley relative to the mobile installation.
- the cylinder can be placed between the pulley and the mobile installation.
- the power supply pneumatic, hydraulic or electric
- the horizontal and / or vertical distance separating the return pulley and the axis of the first muffle or the horizontal and / or vertical distance separating two return pulleys is adjusted.
- FIG. 2 diagrammatically represents an articulated arm of a compensation system according to one embodiment of the invention.
- the following notations are used:
- Rc radius of the pulley of the first muffle 2
- V 0 reference volume of the compensation cylinder
- N number of pulleys
- the articulated system comprises a return pulley 6 of radius RI, an intermediate pulley 7 of radius R 1, a first link 8 of length B between the return pulley 6 and the intermediate pulley 7 and a second link 9 of length C between the intermediate pulley 7 and the pulley of the first muffle 2.
- at least one of the links may be of adjustable length and controlled.
- the first muffle 2 in the low position.
- the compensation system comprises two compensation cylinders 5.
- the path of the cable between the first block 2 and the return pulley 6 can have four variants:
- angles ⁇ and ⁇ depend only on the lengths B and C and the radii of the pulleys.
- angles ⁇ and ⁇ depend on H which varies with the movement of the mobile installation (heave). But these angles also depend on the lengths A, B, C and G which are derived from the sizing of the compensator.
- the invention consists in varying one of these parameters: lengths A, B, C and G as a function of H to cancel the error defined by means of the preceding equations.
- the geometric factor Gf (see above) depends only on angles which are themselves functions of the geometric quantities A, B, C and G. Gf also depends on H. H is a function of time since it represents the movement of the mobile installation (for example the heave of the drill ship).
- U is a constant related to the design of the system.
- Q is the hanging weight (hooked to the second mitt) minus the WOB (weight set on the hung element). Since the purpose of the compensation system is to keep the parameter WOB constant, we consider Q constant. So the effort Fm depends only on the lengths A, B, C, G and H.
- the effort Fa depends on constants (Q, U, Vo and De 0 ). From, which is the stroke of the cylinder, varies according to H constant, w being
- the error function E therefore depends only on the lengths A, B, C, G and H. If one of the quantities A, B, C or G is varied as a function of time, this function can be made independent of H.
- the function connecting the length A, B, C or G to H to cancel the error E is unambiguous: for a given H, there is only one A, B, C or G which makes it possible to cancel the 'error.
- the lengths A and B may be adjusted by means of rods of adjustable length, which may comprise at least one jack.
- the lengths C and G can be adjusted by adjusting the horizontal and vertical position respectively of the return pulley, in particular by means of an adjustment cylinder (arranged respectively horizontally and vertically) placed between the mobile installation and the pulley.
- H being the distance between the axis of the first muffle and the axis of the return pulley, the direct measurement of this distance can be implemented.
- this distance which may represent the heave of the mobile installation, is also a function of the lengths B or C.
- Another solution may be to measure the heave of the mobile installation. From this measurement, the length H is deduced by subtracting from the measurement the length G which is a design constant of the compensation system. And we can directly control A, B, C or G from the knowledge of H. This solution eliminates a retro-control loop control.
- the compensation system according to the invention can be used in particular to compensate for the heave of a ship during a drilling operation at sea, during the installation of a riser (in English "riser"), for a tool of installation of a sea pressure shutter block, or resumption of the bottom to restart the drilling.
- the mobile installation is a floating installation, in particular a ship, and the hung element is a drilling tool or a riser or a pipe laying tool at sea.
- the compensation system according to the invention makes it possible to cancel the compensation error inherent in the systems of the prior art.
- the invention also makes it possible to compensate for heave even when the element (for example a drilling tool) is not supported on the seabed (for example the bottom of the well).
- the compensation systems according to the prior art all aim to maintain constant hook tension during use (for example during drilling).
- the prior art heave compensators are ineffective because the hook tension does not vary during a heave period.
- the vertical accelerations induced by the heave are then too weak to be detected by these systems.
- the control, according to the invention of a characteristic length of articulated arms according to the heave makes it possible to keep the hook at a fixed vertical distance from the seabed.
- the design of the articulated arm with rods of adjustable length or with means for varying the distances of the articulated system reduces the volume of the accumulators of the compensation cylinder.
- FIG. 3 illustrates the variations of the length B which cancel the error E for each heave height H. It is noted that the length B varies from 2.25 m to 4.20 m, ie a stroke of 1.95 m. The variation of the length B of the first rod also causes a variation of the cable length of 0.93 m.
- Figure 4 shows the variations of the length C which cancel the error E for each heave height H. It is noted that the length C varies from 2.30 m to 9.37 m, ie a stroke of 7.07 m. The variation of the length C of the second link also causes a variation of the cable length of 9.67 m. It is therefore possible to cancel the error of the heave compensation system of the prior art by adjusting either the horizontal and / or vertical position of the return pulley, or the length of one of the two links depending on the heave H of the drill ship.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Earth Drilling (AREA)
- Manipulator (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1460086A FR3027298A1 (fr) | 2014-10-20 | 2014-10-20 | Systeme de compensation de pilonnement pour un element accroche a une installation mobile |
PCT/EP2015/069719 WO2016062437A1 (fr) | 2014-10-20 | 2015-08-28 | Systeme de compensation de pilonnement pour un element accroche a une installation mobile |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3209593A1 true EP3209593A1 (fr) | 2017-08-30 |
Family
ID=52007188
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15759713.9A Withdrawn EP3209593A1 (fr) | 2014-10-20 | 2015-08-28 | Systeme de compensation de pilonnement pour un element accroche a une installation mobile |
Country Status (5)
Country | Link |
---|---|
US (1) | US10214974B2 (fr) |
EP (1) | EP3209593A1 (fr) |
BR (1) | BR112017003827A2 (fr) |
FR (1) | FR3027298A1 (fr) |
WO (1) | WO2016062437A1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3029712B1 (fr) * | 2014-12-03 | 2017-12-15 | Ifp Energies Now | Systeme d'actionnement lineaire electrique equipe de moyens de stockage d'energie |
US9976364B2 (en) * | 2016-09-07 | 2018-05-22 | Frontier Deepwater Appraisal Solutions LLC | Floating oil and gas facility with a movable wellbay assembly |
FR3060549B1 (fr) | 2016-12-19 | 2018-12-07 | IFP Energies Nouvelles | Systeme de compensation de mouvement d'une charge accrochee a une installation mobile avec verin principal et verin secondaire |
CN108992080B (zh) * | 2018-05-31 | 2022-05-10 | 东软医疗系统股份有限公司 | 重力平衡机构 |
CN112178365B (zh) * | 2020-08-24 | 2022-05-17 | 中央广播电视总台 | 一种摄像机有轨运动系统及控制方法 |
CN113371158B (zh) * | 2021-07-15 | 2024-05-24 | 烟台宏远载人压力舱工程技术研究院有限公司 | 一种多自由度脐带缆升沉补偿装置 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3743249A (en) * | 1970-04-30 | 1973-07-03 | Shell Oil Co | Heave compensator |
US3791628A (en) | 1972-07-26 | 1974-02-12 | Ocean Science & Eng | Motion compensated crown block system |
US4432420A (en) * | 1981-08-06 | 1984-02-21 | Exxon Production Research Co. | Riser tensioner safety system |
US4688764A (en) * | 1984-10-31 | 1987-08-25 | Nl Industries, Inc. | Crown block compensator |
FR2575452B1 (fr) * | 1984-12-28 | 1987-11-13 | Inst Francais Du Petrole | Methode et dispositif pour soustraire un element accroche a une installation mobile aux mouvements de cette installation |
US5520369A (en) | 1984-12-28 | 1996-05-28 | Institut Francais Du Petrole | Method and device for withdrawing an element fastened to a mobile installation from the influence of the movements of this installation |
US4886397A (en) * | 1987-08-27 | 1989-12-12 | Cherbonnier T Dave | Dynamic load compensating system |
WO2002006632A2 (fr) * | 2000-07-14 | 2002-01-24 | The Texas A & M University System | Systeme et procede permettant de communiquer des informations relatives a un composant de forage |
NO315435B1 (no) * | 2002-06-21 | 2003-09-01 | Hydralift Asa | Kompenseringsanordning |
US7231981B2 (en) * | 2003-10-08 | 2007-06-19 | National Oilwell, L.P. | Inline compensator for a floating drill rig |
CN101654145B (zh) * | 2009-09-30 | 2012-06-27 | 宝鸡石油机械有限责任公司 | 海洋浮式钻井平台天车升沉补偿装置 |
KR101219575B1 (ko) * | 2010-10-05 | 2013-01-08 | 주식회사 칸 | 상하동요 보상장치 |
NO341753B1 (no) * | 2013-07-03 | 2018-01-15 | Cameron Int Corp | Bevegelseskompensasjonssystem |
-
2014
- 2014-10-20 FR FR1460086A patent/FR3027298A1/fr not_active Withdrawn
-
2015
- 2015-08-28 EP EP15759713.9A patent/EP3209593A1/fr not_active Withdrawn
- 2015-08-28 BR BR112017003827A patent/BR112017003827A2/pt not_active Application Discontinuation
- 2015-08-28 WO PCT/EP2015/069719 patent/WO2016062437A1/fr active Application Filing
- 2015-08-28 US US15/520,365 patent/US10214974B2/en not_active Expired - Fee Related
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2016062437A1 * |
Also Published As
Publication number | Publication date |
---|---|
US10214974B2 (en) | 2019-02-26 |
BR112017003827A2 (pt) | 2017-12-05 |
WO2016062437A1 (fr) | 2016-04-28 |
US20170321498A1 (en) | 2017-11-09 |
FR3027298A1 (fr) | 2016-04-22 |
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