EP1719842A1 - System und Methode zur Einstellung von Fundamentelementen - Google Patents

System und Methode zur Einstellung von Fundamentelementen Download PDF

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Publication number
EP1719842A1
EP1719842A1 EP05103713A EP05103713A EP1719842A1 EP 1719842 A1 EP1719842 A1 EP 1719842A1 EP 05103713 A EP05103713 A EP 05103713A EP 05103713 A EP05103713 A EP 05103713A EP 1719842 A1 EP1719842 A1 EP 1719842A1
Authority
EP
European Patent Office
Prior art keywords
converter
driver
hydraulic
piston
foundation element
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Withdrawn
Application number
EP05103713A
Other languages
English (en)
French (fr)
Inventor
Geert Jonker
Arris Van Duijvenboden
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IHC Holland lE BV
Original Assignee
IHC Holland lE BV
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 IHC Holland lE BV filed Critical IHC Holland lE BV
Priority to EP05103713A priority Critical patent/EP1719842A1/de
Priority to EP06754973A priority patent/EP1880060A1/de
Priority to US11/913,133 priority patent/US20080292407A1/en
Priority to PCT/EP2006/062006 priority patent/WO2006117380A1/en
Priority to MX2007013707A priority patent/MX2007013707A/es
Publication of EP1719842A1 publication Critical patent/EP1719842A1/de
Priority to NO20075539A priority patent/NO20075539L/no
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/02—Placing by driving
    • E02D7/06—Power-driven drivers
    • E02D7/10—Power-driven drivers with pressure-actuated hammer, i.e. the pressure fluid acting directly on the hammer structure

Definitions

  • the invention pertains to a system for installing foundation elements, such as piles or conductors, in a sub-sea ground formation, comprising a hydraulic driver and a power converter for generating hydraulic pressure in a hydraulic fluid for the driver.
  • the invention also relates to a method of installing foundation elements.
  • US 4,964,473 relates to a method for driving a hydraulic submerged tool, whereby the hydraulic pressure energy is generated in a submerged power converter. As explained in US 4,964,473 , such a method was already known in the art, i.e. from the Netherlands patent application Nr. 7513240 .
  • the latter document discloses a hydraulically driven pile driver to which an electrically driven hydraulic power unit is attached in which electric power is converted into hydraulic power. Feeding this power converter occurs by supplying electric energy by electric cables to the power converter from a generator located above water ashore, or on a ship or on a work platform. In the same way other submerged tools are driven, such as drilling tools, sampling apparatuses and tools for working at or inspecting submarine constructions.
  • the electrical cables are uncoiled from a reel on deck to follow the power converter lowered below the water.
  • the electrical cables are uncoiled from a reel on deck to follow the power converter lowered below the water.
  • US 4,964,473 aims to provide a method as well as a device for driving a hydraulic submerged tool with which these problems can be solved in an easy way.
  • this object is obtained by driving the converter with pressurised surrounding water, which, after the energy transfer, is exhausted into the surrounding water.
  • a simple drive is obtained whereby no return conduct is necessary.
  • this method will give a considerable cost reduction, whereas the working depth may be very large.
  • the system according to the present invention is characterised in that the driver and the converter are adapted to fit inside the foundation elements.
  • hydraulic pile drivers are connected to a tank for a hydraulic fluid and comprise a hydraulic cylinder, a piston accommodated in the hydraulic cylinder, an impact weight connected to the piston, high and low-pressure accumulators, a valve system for alternately connecting the hydraulic cylinder to the high and low-pressure accumulators, and conduits for operatively connecting these components in a manner known in itself.
  • the tank is mounted on or integrated with the converter. It is also preferred that the cylinder, piston, accumulators, and the valve system are mounted on or integrated with the converter.
  • a housing for the weight may be omitted and/or tolerances and shape of the weight become less critical.
  • the invention further relates to a method of installing foundation elements, such as piles or conductors, in a sub-sea ground formation, by means of a hydraulic driver and a power converter for generating hydraulic pressure in a hydraulic fluid for the driver, which method comprises the steps of (in no particular order) mounting the driver inside a foundation element and subsequently mounting the converter inside the foundation element, lowering the foundation element, the driver, and the power converter from a vessel, such as an drilling platform or ship, and preferably by means of a drill string.
  • a vessel such as an drilling platform or ship
  • an energy transferring fluid in particular water taken from the surroundings of the drilling platform or ship, is fed to the converter through the drill string.
  • WO 2004/051004 discloses a "pile-driving apparatus comprising a pile, a shoe tip coupled to a toe of the pile, and a drill string disposed within the pile.
  • the drill string comprises a gripping device coupling the drill string to the pile and a hammer deployed into the pile such that the hammer is capable of transmitting a force to the shoe tip.”
  • the hammer receives fluid to generate the force, used to drive the shoe tip, and controlling signals via an umbilical.
  • US 6,626,248 discloses a "method for driving a drive pipe into a sub-sea formation, said method comprising: accelerating at least one mass relative to the drive pipe, wherein the at least one mass is accelerated within the drive pipe; transferring energy from the accelerated at least one mass to the drive pipe; suspending the drive pipe from a drill string; and isolating [by means of a "running tool"] the drill string from the transferred energy from the accelerated at least one mass.”
  • the Figures show a system 1 for installing foundation elements, such as tubular piles or conductors 2, in a seabed 3, suspended from a drilling platform 4 by means of a hose or, preferably, a drill string 5.
  • foundation elements such as tubular piles or conductors 2
  • the foundation element is a so-called conductor pipe 2, i.e. a hollow metal tube, which typically has a length in a range from 50 to 125 m or even up to 250 m (in deep water) and a diameter in a range from 70 to 100 cm, for instance 30 or 36 inch.
  • the conductor pipe 2 is provided with a drive shoe 6 and a toe drive assembly, a steel plate or a solid steel anvil 7.
  • the system 1 comprises a hydraulic driver 8 and a power converter 9 for generating hydraulic pressure in a hydraulic fluid and supplying the same to the driver 8, which both fit inside the conductor pipe 2.
  • the driver 8 comprises a tank 10 for hydraulic fluid, such as hydraulic oil or (sea)water optionally including appropriate additives, a hydraulic cylinder 11, a piston 12 reciprocatingly accommodated in the hydraulic cylinder 11, high and low-pressure accumulators 13, 14, a valve system 15 for alternately connecting the hydraulic cylinder 11 to the high and low-pressure accumulators 13, 14, a volume compensator (not shown), typically a piston compensator, for compensating fluctuations of the volume of hydraulic fluid in the tank 10 (resulting from the movements of the piston 12), and an impact weight 17. Further, an acceleration chamber 16 is positioned above the piston 12 and connected to the valve system 15.
  • hydraulic fluid such as hydraulic oil or (sea)water optionally including appropriate additives
  • a hydraulic cylinder 11 for hydraulic oil or (sea)water optionally including appropriate additives
  • a hydraulic cylinder 11 for reciprocatingly accommodated in the hydraulic cylinder 11
  • high and low-pressure accumulators 13, 14 for alternately connecting the hydraulic cylinder 11 to the high and low-pressure accumulators 13, 14, a volume compens
  • the impact weight 17 has been separated from the other components 10-15 of the driver 8 and has been adapted to reciprocate inside the conductor pipe 2.
  • the impact weight 17 comprises a plurality of guides 18, preferably mounted along the circumference of the impact weight 17 and at least at or near its upper and lower ends.
  • the guides 18 abut the inner wall of the foundation element 2 and are preferably made of a synthetic material, such as HDPE, or a metal, such as brass.
  • the guides 18 eliminate nearly all wear on the impact weight 17 and allow the weight 17 to work at inclinations.
  • the impact weight 17 is connected to the lower end of the piston 12 by means of a flexible element 19, e.g. a steel cable, and a shock absorber 20.
  • the converter 9 preferably comprises a so-called mud motor 21, a fluid inlet 22, connected to the drill string 5, such that a fluid, in particular seawater taken from the surroundings of the drilling platform 4, can be fed through the drill string 5 to the converter 9, and a pump 23 connected to the high-pressure accumulator 13 and the valve system 15. Further, conduits 24, 25 are provided to connect the low-pressure accumulator 14 to the tank 10 and the pump 23 to the tank 10 and the high-pressure accumulator 13, respectively.
  • the mud motor 21 e.g. a Moyno 962M3460 or a 212R5625 ex Roper pumps, is known in itself and comprises a power section, connected, via the fluid inlet 22, to the drill string 5, a transmission, and an output shaft connected to the pump 23.
  • the converter comprises one or more work cylinders, which each by means of a floating piston are divided in a space filled with pressurised water and a space filled with a hydraulic work medium, switching means being provided which are activated each time that a floating piston reaches the end of its work stroke, by reason of which at each work cylinder the space which can be filled with pressurised water alternately is connected either to a feed conduit of pressurised water, in particular the drill string 5, or to a free exhaust (not shown), each work cylinder at the side of the hydraulic work medium being connected to the pressure conduit 25 running to the high-pressure accumulator 13.
  • the tank, cylinder, piston, accumulators, and valve system have been integrated with the converter to form a converter driver unit 26.
  • An expandable ring for instance a so-called packer 27, or a gripper has been attached about the circumference of the unit 26, e.g. halfway or at both the upper and lower ends of the unit 26, to temporarily secure the unit 26 to the inner wall of the foundation element 2.
  • the ring 27 and the anvil 7 provide air tight seals, in which case water below the unit 26 can be replaced by e.g. air thus reducing the resistance on the impact weight 17 during reciprocating movement inside the foundation element 2.
  • the conductor pipe 2 is installed in the seabed 3, by lowering the conductor pipe 2 from the platform 4 into the sea, mounting the impact weight 17 and the converter driver unit 26 inside the pipe 2, attaching the converter driver unit to the drill string, securing the latter against the inner wall of the pipe 2 by expanding the ring 27 and/or connecting the pipe 2 to the drill string 5 by means of (W)ROV disconnectable slings, lowering the assembly thus obtained from the drilling platform 4 by means of the drill string 5, and positioning the conductor pipe 2 on the seabed 3.
  • the operating cycle begins with an upward movement involving the lifting of the piston 12 and the impact weight 17.
  • a first valve (within the valve system 15) in the high-pressure line (25) is opened and a second valve in the return line (24) is closed. Once a preset stroke has been reached, the first valve is closed and the second valve opened, allowing the impact weight 17 to start its downward movement.
  • the flexible element 19 is sufficiently short to enable the piston 12 to abut and hence accelerate the impact weight 17 during downward movement by connecting the chamber 16 above the piston 12 to the high-pressure line, giving the impact weight 17 a total acceleration of up to 2 g. This reduces the actual stroke required and increases the blow rate.
  • the weight strikes the anvil 7 and the pipe 2 is driven into the seabed 3.
  • system according to the invention enables so-called "pile toe driving" without the need for an umbilical between the converter and the driver. Further, by integrating one or more components of the driver with the converter, preferably most or all components except for the impact weight, handling of the system is simplified, a housing for the weight may be omitted and/or tolerances and shape of the weight become less critical.
  • the impact weight (17) may be rigidly connected to the piston (12).
  • the means (27) for securing the converter driver unit to the inner wall of the foundation element can be employed to absorb torque generated in the converter, thus reducing or even preventing torque in the drill string.
  • the converter may comprise two or more pumps, e.g. two main pumps driven in opposite directions (again, reducing torque) and a pump for driving a jet for removing obstacles in the way of the impact weight.
  • the converter and driver can be configured as separate units, preferably connected by a flexible element and suitable conduits for the hydraulic fluid and/or each provided with a means for securing the same to the inner wall of the foundation element.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Piles And Underground Anchors (AREA)
EP05103713A 2005-05-03 2005-05-03 System und Methode zur Einstellung von Fundamentelementen Withdrawn EP1719842A1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP05103713A EP1719842A1 (de) 2005-05-03 2005-05-03 System und Methode zur Einstellung von Fundamentelementen
EP06754973A EP1880060A1 (de) 2005-05-03 2006-05-03 System und verfahren zur einstellung von fundamentelementen
US11/913,133 US20080292407A1 (en) 2005-05-03 2006-05-03 System and Method for Installing Foundation Elements
PCT/EP2006/062006 WO2006117380A1 (en) 2005-05-03 2006-05-03 System and method for installing foundation elements
MX2007013707A MX2007013707A (es) 2005-05-03 2006-05-03 Sistema y metodo para instalar elementos de cimentacion.
NO20075539A NO20075539L (no) 2005-05-03 2007-11-02 System og fremgangsmate for installasjon av fundamenteringselementer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05103713A EP1719842A1 (de) 2005-05-03 2005-05-03 System und Methode zur Einstellung von Fundamentelementen

Publications (1)

Publication Number Publication Date
EP1719842A1 true EP1719842A1 (de) 2006-11-08

Family

ID=34979265

Family Applications (2)

Application Number Title Priority Date Filing Date
EP05103713A Withdrawn EP1719842A1 (de) 2005-05-03 2005-05-03 System und Methode zur Einstellung von Fundamentelementen
EP06754973A Withdrawn EP1880060A1 (de) 2005-05-03 2006-05-03 System und verfahren zur einstellung von fundamentelementen

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP06754973A Withdrawn EP1880060A1 (de) 2005-05-03 2006-05-03 System und verfahren zur einstellung von fundamentelementen

Country Status (5)

Country Link
US (1) US20080292407A1 (de)
EP (2) EP1719842A1 (de)
MX (1) MX2007013707A (de)
NO (1) NO20075539L (de)
WO (1) WO2006117380A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103572758A (zh) * 2013-11-18 2014-02-12 天津理工大学 一种用于水中打桩的柔性密封水击锤
CN106284350A (zh) * 2015-06-03 2017-01-04 毕建东 内击式液压打桩锤的改进方法及其应用
EP3146112A1 (de) * 2014-05-22 2017-03-29 IHC Holland IE B.V. Röhrenförmiges fundament

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2448358B (en) * 2007-04-12 2009-07-08 Tidal Generation Ltd Installation of underwater ground anchorages
EP2312060B1 (de) 2009-10-16 2012-09-26 IHC Holland IE B.V. System und Verfahren zur Installation von Fundamentelementen in einer Gewässergrund
NL2008279C2 (en) * 2012-02-13 2013-08-14 Ihc Holland Ie Bv A template for and method of installing a plurality of foundation elements in an underwater ground formation.
CN105064363A (zh) * 2015-08-17 2015-11-18 中机锻压江苏股份有限公司 深海水下强力锤

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3526283A (en) * 1968-07-23 1970-09-01 S O G Research & Dev Corp Pile driver
US3817335A (en) * 1972-11-28 1974-06-18 Bolt Associates Inc Airgun repeater powered pile driver
US4043405A (en) * 1974-11-16 1977-08-23 Koehring Gmbh Pile-driving arrangement
US4098355A (en) * 1977-01-27 1978-07-04 Raymond International Inc. Underwater hammer with circumferential flow seal
US4964473A (en) 1988-03-15 1990-10-23 Ihc Holland N.V. Method for driving a hydraulic submerged tool
US6626248B1 (en) 1999-05-05 2003-09-30 Smith International, Inc. Assembly and method for jarring a drilling drive pipe into undersea formation
WO2004051004A2 (en) 2002-12-02 2004-06-17 Bj Services Company Method and apparatus for sub-sea pile-driving

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3646598A (en) * 1969-06-25 1972-02-29 Bolt Associates Inc Pile driver systems apparatus and method for driving a pile
FR2369908A1 (fr) * 1976-11-08 1978-06-02 Montabert Roger Appareil a percussions hydraulique
US4154307A (en) * 1976-11-19 1979-05-15 Raymond International, Inc. Pile driving system
GB2043510B (en) * 1979-02-27 1982-12-22 Hollandsche Betongroep Nv Pile driving apparatus
US4372707A (en) * 1979-11-29 1983-02-08 Pipe Technology Systems, Inc. Pile installation and removal mechanisms in off-shore rigs and method of using same
DE3047375C2 (de) * 1980-12-16 1985-09-05 Koehring Gmbh, 2000 Hamburg Tauchfähige Rammvorrichtung
FR2802949B1 (fr) * 1999-12-22 2002-09-27 Durmeyer Entrp Travaux Publics Marteau electromagnetique a masse ferromagnetique mobile
US6962202B2 (en) * 2003-01-09 2005-11-08 Shell Oil Company Casing conveyed well perforating apparatus and method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3526283A (en) * 1968-07-23 1970-09-01 S O G Research & Dev Corp Pile driver
US3817335A (en) * 1972-11-28 1974-06-18 Bolt Associates Inc Airgun repeater powered pile driver
US4043405A (en) * 1974-11-16 1977-08-23 Koehring Gmbh Pile-driving arrangement
US4098355A (en) * 1977-01-27 1978-07-04 Raymond International Inc. Underwater hammer with circumferential flow seal
US4964473A (en) 1988-03-15 1990-10-23 Ihc Holland N.V. Method for driving a hydraulic submerged tool
US6626248B1 (en) 1999-05-05 2003-09-30 Smith International, Inc. Assembly and method for jarring a drilling drive pipe into undersea formation
WO2004051004A2 (en) 2002-12-02 2004-06-17 Bj Services Company Method and apparatus for sub-sea pile-driving

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103572758A (zh) * 2013-11-18 2014-02-12 天津理工大学 一种用于水中打桩的柔性密封水击锤
CN103572758B (zh) * 2013-11-18 2015-04-29 天津理工大学 一种用于水中打桩的柔性密封水击锤
EP3146112A1 (de) * 2014-05-22 2017-03-29 IHC Holland IE B.V. Röhrenförmiges fundament
CN106284350A (zh) * 2015-06-03 2017-01-04 毕建东 内击式液压打桩锤的改进方法及其应用

Also Published As

Publication number Publication date
WO2006117380A1 (en) 2006-11-09
EP1880060A1 (de) 2008-01-23
US20080292407A1 (en) 2008-11-27
NO20075539L (no) 2007-12-03
MX2007013707A (es) 2008-04-09

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