WO2020067905A1 - Coil tubing injector integrated heave compensation and a coil tubing heave compensation method - Google Patents
Coil tubing injector integrated heave compensation and a coil tubing heave compensation method Download PDFInfo
- Publication number
- WO2020067905A1 WO2020067905A1 PCT/NO2019/050195 NO2019050195W WO2020067905A1 WO 2020067905 A1 WO2020067905 A1 WO 2020067905A1 NO 2019050195 W NO2019050195 W NO 2019050195W WO 2020067905 A1 WO2020067905 A1 WO 2020067905A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coiled
- heave
- tubing
- injector
- injector head
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000007667 floating Methods 0.000 claims abstract description 43
- 238000009434 installation Methods 0.000 claims abstract description 41
- 230000033001 locomotion Effects 0.000 claims abstract description 40
- 238000006073 displacement reaction Methods 0.000 claims abstract description 33
- MYWUZJCMWCOHBA-VIFPVBQESA-N methamphetamine Chemical compound CN[C@@H](C)CC1=CC=CC=C1 MYWUZJCMWCOHBA-VIFPVBQESA-N 0.000 claims 1
- 238000005553 drilling Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000009183 running Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 244000261422 Lysimachia clethroides Species 0.000 description 1
- 208000036366 Sensation of pressure Diseases 0.000 description 1
- 206010043268 Tension Diseases 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000007704 transition 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
- 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
-
- 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
- E21B19/22—Handling reeled pipe or rod units, e.g. flexible drilling pipes
Definitions
- the invention relates to a coiled-tubing injector comprising an injector head provided with driving means arranged to displace a coiled tubing in the axial direction of the coiled tub- ing, and a control unit which is connected to the driving means and which, by a first set of control signals, is arranged to control the axial displacement of the coiled tubing by the driving means.
- the invention also relates to a method for simultaneous axial displacement of a coiled tubing relative to a subsea well and heave compensation relative to the heave motion of a floating installation.
- the so-called coiled-tubing injector with associated components must be heave-compensated by the coiled-tubing injector being placed in a frame which is suspended from a heave-compensation system, for example by said frame being suspended from a heave-compensated top drive or a heave-compensated hoisting block, possibly by said frame being provided with an integrated heave-compensation sys tem which counterbalances the vertical movements of the floating installation.
- a drawback in the heave compensation of prior-art coiled-tubing injectors is that relatively tall structures are required to provide vertical guide tracks, for example in a tower, and this results in relatively large structures being in vertical motion relative to the floating installa- tion, and relatively much energy being required for the constantly changing direction of motion and change of speed that must be applied to the coiled-tubing injector in order for the vertical motion of the floating installation not to be transmitted to the part of the coiled tubing that is in or at the wellhead or in the subsea well.
- a floating installation provided with a heave-compensated upper floor in which several hydraulic cylinders extend between the upper floor and a lower base.
- the upper floor carries a coiled-tubing system comprising a coiled-tubing reel and an injector head for paying out and retracting a coiled tubing.
- the upper floor also comprises counterweights for counterbalancing the weight of the coiled-tubing reel.
- a substantial drawback of the device is that a considerable mass will have to be put into motion during the heave compensation, as both the coiled-tubing reel and the counter- weights are to be accommodated on the upper, heave-compensated floor, which results in an additional mass, both because of a floor of large dimensions and because of the weight of the coiled-tubing reel and the counterweights, in relation to an injector head alone.
- the invention has for its object to remedy or to reduce at least one of the drawbacks of the prior art or at least to provide a useful alternative to the prior art.
- the invention provides a surface unit for coiled-tubing operations in connection with a subsea well, in which, in a manner known perse, an injector head on a coiled-tubing in- jector comprises several driving means comprising one or more driving motors which are connected to driving devices which are arranged to rest against a coiled tubing to displace the coiled tubing in its axial direction through the coiled-tubing injector.
- the driving devic es may be wheels, rollers, chains with gripping blocks, etc., according to the prior art known perse.
- the coiled-tubing injector also comprises further equipment required for a coiled-tubing operation to be performed in a manner which is safe and according to regulations, typically by the coiled-tubing injector being provided with a gooseneck directing the coiled tubing from a reel associated with the coiled-tubing injector into the injector head, strippers fitting tightly around the coiled tubing and forming active pressure barriers between the injector head and the well, and one or more blowout preventers.
- a drive unit is connected to the coiled-tubing injector for the supply of electri cal energy, pressurized fluid, etc., for the operation of engines and actuators.
- a control unit is connected to the coiled-tubing injector to monitor and control the coiled- tubing operation.
- the coiled-tubing injector is supported on a suitable structure on the floating installation from which the coiled-tubing operation is carried out.
- Said structure is typically a floor, for example a well floor or a drilling floor, the coiled-tubing injector being so placed that the centre axis of the coiled-tubing injector is arranged above a production tubing, a marine riser or an opening in said floor.
- the control unit is connected to means that register the vertical movements (heave motion) of the floating installation and generate control signals for heave-compensation means connected to the coiled-tubing injector.
- the active heave compensation may be combined with passive heave compensation of a suitable type to relieve a tool that is to be landed in or at the well, for example by the heave-compensation means being connected to one or more hydraulic accumulators. Active and passive heave compensations may preferably be operated independently of each other.
- the heave-compensation means are arranged to vertically displace the entire coiled-tubing injector in opposite phase to the heave motion of the floating in stallation, typically in the form of a platform carrying the coiled-tubing injector, the platform hanging from or resting on one or more heave-compensation cylinders.
- the heave-compensation means may be made up of the driving motors of the coiled-tubing injector, the driving motors thereby being able to displace the coiled tub- ing in opposite phase to the vertical motion of the floating installation.
- these control signals for compensating the heave motion may be superimposed on the control signals for the ordinary vertical displacement of the coiled tubing when the coiled tubing is being run into or out of the well.
- the injector head may displace the coiled tubing relative to the well, ensuring at the same time that the coiled tubing is heave compensated in that the vertical motion of the floating installation relative to the well will be counterbalanced.
- the active heave compensation may be provided as a constant-tension con trol; that is to say, the heave-compensation means of the coiled-tubing injector are set to hold a constant tension of a prescribed magnitude on the coiled tubing.
- the invention is defined by the independent claims.
- the dependent claims define advan tageous embodiments of the invention.
- an injector head provided with driving means arranged to displace a coiled tubing in the axial direction of the coiled tubing
- control unit which is connected to the driving means and, by means of a first set of control signals, is arranged to control the axial displacement of the coiled tubing by the driving means
- the injector head being supported by a heave compensator which forms a connec tion between a base formed on a floating installation and the injector head, and
- the heave compensator being provided with one or more heave-compensation cylinders which are arranged to generate a heave-compensated vertical movement of the injector head.
- the heave-compensation cylinders may be connected to a drive unit,
- a heave-registration unit which is arranged to register a vertical movement of a floating installation that supports the coiled-tubing injector may be connected to the control unit and may be arranged to generate a second set of control signals, and
- control unit may be connected to the drive unit and is arranged, by means of the second set of control signals, to control the displacement of the heave compensator by the heave-compensation cylinders in order thereby to be able to generate an actively heave-compensated vertical movement of the injector head independently of the first set of control signals.
- the heave-registration unit may be a motion reference unit arranged on the floating instal lation.
- the heave-registration unit may be a unit arranged to measure an axial ten- sion in the coiled tubing.
- a coiled-tubing guide which may be arranged on the injector head may be provided with heave-compensation means.
- the coiled-tubing guide may be provided with passive heave-compensation means.
- the coiled-tubing guide may be provided with active heave-compensation means arranged to be controlled by means of the second set of control signals.
- the heave-compensation cylinders of the heave compensator may be connected to a platform arranged to support the injector head.
- the invention relates, more specifically, to a method of heave- compensating a coiled tubing during a coiled-tubing operation in a subsea well performed from a floating installation, the method comprising the following steps:
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112021005524-0A BR112021005524A2 (en) | 2018-09-26 | 2019-09-25 | flexitube injector with integrated rise and fall compensation and flexitube rise and fall compensation method |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20181250 | 2018-09-26 | ||
NO20181250 | 2018-09-26 | ||
NO20190034A NO344996B1 (en) | 2018-09-26 | 2019-01-10 | Coiled tube injector with integrated HIV compensation and procedure for HIV compensation of coiled tubing |
NO20190034 | 2019-01-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020067905A1 true WO2020067905A1 (en) | 2020-04-02 |
Family
ID=69950808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NO2019/050195 WO2020067905A1 (en) | 2018-09-26 | 2019-09-25 | Coil tubing injector integrated heave compensation and a coil tubing heave compensation method |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2020067905A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO20220053A1 (en) * | 2021-01-29 | 2022-08-01 | Electrical Subsea & Drilling As | A system and a method for heave compensated make-up and break-out of drill pipe connections in connection with drilling |
US11434103B2 (en) | 2015-07-17 | 2022-09-06 | PATCO Machine & Fab., Inc. | Reel assemblies with automated control systems |
WO2023034187A1 (en) * | 2021-08-30 | 2023-03-09 | Lehnen Industrial Services, Inc. | Flexible tubing guidance device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070187108A1 (en) * | 2006-02-15 | 2007-08-16 | Shunfeng Zheng | Offshore coiled tubing heave compensation control system |
WO2011008835A2 (en) * | 2009-07-15 | 2011-01-20 | My Technologies, L.L.C. | Downhole intervention |
US20180080850A1 (en) * | 2016-09-16 | 2018-03-22 | Onesubsea Ip Uk Limited | Conduit fatigue management systems and methods |
WO2018094264A1 (en) * | 2016-11-17 | 2018-05-24 | Wright David C | Motion compensating floors system and method |
-
2019
- 2019-09-25 WO PCT/NO2019/050195 patent/WO2020067905A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070187108A1 (en) * | 2006-02-15 | 2007-08-16 | Shunfeng Zheng | Offshore coiled tubing heave compensation control system |
WO2011008835A2 (en) * | 2009-07-15 | 2011-01-20 | My Technologies, L.L.C. | Downhole intervention |
US20180080850A1 (en) * | 2016-09-16 | 2018-03-22 | Onesubsea Ip Uk Limited | Conduit fatigue management systems and methods |
WO2018094264A1 (en) * | 2016-11-17 | 2018-05-24 | Wright David C | Motion compensating floors system and method |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11434103B2 (en) | 2015-07-17 | 2022-09-06 | PATCO Machine & Fab., Inc. | Reel assemblies with automated control systems |
NO20220053A1 (en) * | 2021-01-29 | 2022-08-01 | Electrical Subsea & Drilling As | A system and a method for heave compensated make-up and break-out of drill pipe connections in connection with drilling |
NO346881B1 (en) * | 2021-01-29 | 2023-02-13 | Electrical Subsea & Drilling As | A system and a method for heave compensated make-up and break-out of drill pipe connections in connection with drilling |
WO2023034187A1 (en) * | 2021-08-30 | 2023-03-09 | Lehnen Industrial Services, Inc. | Flexible tubing guidance device |
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