US3751930A - Articulated marine structure with prepositioned anchoring piles - Google Patents

Articulated marine structure with prepositioned anchoring piles Download PDF

Info

Publication number
US3751930A
US3751930A US00212074A US3751930DA US3751930A US 3751930 A US3751930 A US 3751930A US 00212074 A US00212074 A US 00212074A US 3751930D A US3751930D A US 3751930DA US 3751930 A US3751930 A US 3751930A
Authority
US
United States
Prior art keywords
deck
pile
hull
marine structure
carried
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.)
Expired - Lifetime
Application number
US00212074A
Other languages
English (en)
Inventor
G Mott
J Wilbourn
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.)
Texaco Inc
Original Assignee
Texaco Inc
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 Texaco Inc filed Critical Texaco Inc
Application granted granted Critical
Publication of US3751930A publication Critical patent/US3751930A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B35/4413—Floating drilling platforms, e.g. carrying water-oil separating devices
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto

Definitions

  • ABSTRACT 52 us. Cl 61/465, 61/535, 173/43 The relates a marine Strum": use in 51 Int. Cl. E02b 17/00, E02d 11/00 water Where Piling is required [58] Field Of Search 61/465, 46 53.5 h1dthe Structure in Place- It relates in Pafticular a 61/63. floatable marine structure which is sufficiently buoyant to be floated to an offshore working site carrying a plu- [56] References Cited rality of positioning piles thereon.
  • a marine platform of the type presently disclosed can serve many purposes and may be utilized by a number of industries. In the specific instance of the petroleum industry, the platform would be positioned in an offshore body of water to drill into and explore the substratum for the purpose of producing crude oil and gas. Normally, in water depths up to several hundred feet such marine platforms would be attached to the drilling site by piles or similar retaining means.
  • the marine platform be designed to resist ice forces by means of piling driven or drilled and cemented into place at relatively high angles of batter. If it is later desired to move the platform it could 'be disconnected by cutting off the piling below the mud line by means of conventional shaped explosive charges or any of a number of inside cutting devices and thence refloated and moved to a new location.
  • the latter would have to be mobile to the extent that it could be readily towed to a drilling site and thereafter submerged to assume a fixed position.
  • the floatable unit itself, or a portion thereof must be capable of being ballasted tosubmerge at the site for positioning drilling equipment such as a derrick, rotary table, etc. beyond the waters surface to protect such equipment from the elements.
  • the piling in such an instance can be made of sufficient length to penetrate the substratum to a desired depth.
  • the amount of piling provided for holding the platform is normally carried on a barge or similar vesselwhich accompanies the platform as it is either carried or floated to a desired site.
  • platforms of the type contemplated will carry pile driving or pile drilling apparatus mounted in conjunction with a crane type derrick or with the main drilling. structure whereby piles can be individually drivenvort drilled into the substratum.
  • pile driving or pile drilling apparatus mounted in conjunction with a crane type derrick or with the main drilling. structure whereby piles can be individually drivenvort drilled into the substratum.
  • there are of course problems concerning the piling since the piles must be transferred from a carrying vessel; in lengths which can be easily handled, welded-into atcontinuous length, aligned through a supportleg, andtthereafter driven into the substratum with or without the aid of a stinger at the pile upper end.
  • the presently disclosed structure is of the semi-submersible type such that it may be readily floated to a drill site in a buoyed condition. Thereafter, it can be ballasted to sink and rest the lower portion thereof at the ocean floor.
  • a work deck carried on the structure's upper side can be raised to an elevated working height above the waters surface.
  • a plurality of prepositioned anchor piles can be driven downwardly through the structures lower end or base and into the substratum for a sufficient distance to rigidly fix said base and prohibit movement thereof in spite of lateral forces exerted by the wind, waves, ice, etc.
  • Offshore structures of the type described are most commonly used in the drilling for and production of petroleum fluids as crude oil and gas. They are particularly useful in Arctic waters such as those surrounding Alaska which are generally shallow and where heavy ice concentrations prohibit a normal floating or fixed platform operation.
  • FIG. 1 illustrates a marine platform of the type contemplated, floating at the waters surface.
  • FIG. 2 is similar to FIG. ll showing the platform submerged.
  • FIG. 3 is a top view of FIG. I.
  • FIG. d is an enlarged segmentary view of a portion of the platform in FIG. 2.
  • FIG. 5 is a side view in partial cross section of FIG. 4 and FIG. 6 is an end view of-the slide member shown in FIG. 5.
  • FIG. 1 illustrates a platform 10 of the type contemplated shown in the floating position at the surface of a body of water Ill.
  • the platform lower end comprises a base or a hull 12 which conveniently assumes a circular, octagonal or other multi-sided shape.
  • base 12 In the normal submerged position, base 12 assumes a generally horizontal position at the ocean floor to facilitate the work from deck 13.
  • Base 12 carries an upstanding, generally elongated support column 14 which is fixed at its lower end in a cavity or sleeve formed within base 12, and which extends for a sufficient height as to position working deck 13 beyond the waters surface.
  • the length of support column 14 can be adjusted by removal therefrom or by addition thereto of a particular length of column segment.
  • This portion of the marine structure 10 is to properly support working deck 13 in such a manner to permit movement of the latter therealong.
  • Column 14 thereby embodies means for engaging jacks, clamps or similar mechanisms not presently shown whereby the periphery of the column can be releasably engaged with said jacks to elevate the deck a predetermined or desired distance along the column.
  • deck 13 can be elevated beyond the waters surface during a drilling operation. Further, as the structure is being propelled between drilling sites deck 13 is lowered to as close a position as possible with respect to hull 12 whereby to promote the sea worthiness of the entire unit.
  • the marine structure 10 is provided with means to accommodate a plurality of elongated piles 16 which are supported between hull l2 and deck 13. These piles are so arranged as to be firmlyheld while they are being transported, and yet readily released so as to be inserted into the substratum.
  • the number of piles actually used at any particular working site will be determined in accordance with the composition and consistency of the substratum at the working site.
  • the lower portion or hull 12 of the structure when in the ballasted condition is relatively heavy to provide a firm foundation for the upper portion, the use of piling is dictated by the adverse ice and soil conditions often encountered in the waters where such platforms are to be used. Such conditions necessitate the safety factor of anchor piling for holding the drilling structure at the site.
  • Base or hull member 12 comprises in effect a bargelike vessel formed of a plurality of closed, individually controlled buoyancy tanks such as 17 and 18. By regulation of the buoyancy of the respective tanks, both the attitude and disposition of base 12 can be readily controlled between the ocean floor, and the water's surface.
  • Base 12 is preferably formed of welded steel or reinforced concrete sections of sufficient strength and so reinforced to resist the external forces or pressures expected in the depths of water where platform would normally be positioned.
  • the respective compartments 17 and 18 within the hull are individually separated by discretely placed bulkheads and panels. Thus, selective adjustments of the buoyancy of said compartments results in the entire unit being raised to a floating position at the water's surface, or lowered to a desired depth, or positioned at a desired attitude.
  • each compartment 17 and 18 is connected with a buoyancy system which is controlled from the water's surface and adapted to urge a fluid ballasting medium such as water or drilling mud through the respective compartments. Regulating the flow of said ballasting fluid achieves the purpose of adjusting the disposition of hull 12 as required.
  • the hull 12 as mentioned, can assume a number of shapes compatible with its function. However, as shown in FIG. 3 in the instant embodiment the hull is formed in a generally circular shape to better accommodate the prepositioned piles 16 when the latter are being transported to the working site.
  • Elongated support column 14 is positioned centrally of and fastened to the hull 12 for the purpose of properly supporting the deck 13 thereon.
  • Said column 14 in its preferred structure includes a cylindrical, elongated member having sufficient strength to safely bear the compressive weight of working deck 13 together with the ancillary drilling equipment.
  • Column 14 must also be designed to withstand the crushing and bending forces imposed on the unit by moving ice.
  • the essential purpose of this unit remains the same, that is to support deck 13 in a desired manner so as to permit the latter to be leveled and vertically adjusted to facilitate a drilling operation.
  • Column 14 is further provided with means on the outer surface such as indentations or slots or similar facilities, whereby to accommodate the clamping or jacking mechanisms carried on deck 13.
  • the latter are actuatable to engage said column outer surface whereby to adjust the horizontal position of the deck with respect to the water's surface.
  • said column 14 can be either elongated or shortened to best accommodate the deck for a particular drilling site. Further, column 14 can be elongated by welding thereto column segments at such time as the platform reaches a working site. Thus, the floatability of platform 10 can be adjusted to make it more seaworthy during the transportation when it is most susceptible to damage by storms, inclement weather, or the like.
  • Working deck 13 as mentioned, is slidably carried on the column 14 outer surface and guided therealong by jacks on or within the deck.
  • Such apparatus is well known in the art and utilized for the purpose noted of raising a platform or deck on one or more legs which are normally positioned in the floor of a body of water.
  • the respective climbing jacks are individually operable, and so arranged to permit leveling of the deck 13 with respect to the waters surface in such an instance where column 14 is found to be canted from a vertical disposition.
  • Deck section 13 of course accommodates the normal complement of drilling equipment as is found on any marine structure adapted to this purpose.
  • the deck carries preferably at its center, an upstanding derrick 19 which is so positioned to straddle the upper end of column 14 whereby one or more wells might be drilled down through the column thus protecting the drilling operation from movement of the surrounding waters.
  • Also carried on the deck 13 is the necessary draw works, rotary table and crews quarters, etc. which will permit a complete, self contained drilling operation.
  • the deck further supports in the usual manner one or more cranes 21 which are so positioned on the deck to be suspended over the sides to reach a vessel at the waters surface and to assist in the pile driving operations.
  • deck 13 also supports a pile guide means 22 which is operably carried thereon and adjustable to be positioned with respect to a pile 16 as will be herein noted.
  • the plurality of elongated piles 16 are positioned on the marine structure in such a manner that they can be readily carried to a drilling site and thereafter released as to be in a position to be driven into the substratum beneath submerged hull l2.
  • hull 12 is provided with a number of sleeves or transverse openings 23 adapted to slidably receive a pile 16 therethrough whereby to guide the latter toward its embedded position in the substratum.
  • the piles 16 which are normally cylindrical in cross section and have a relatively heavy wall, can withstand both the shearing and bending stresses imposed thereon as result of wave and ice action against the platform.
  • the respective piles 16 are carried with the lower end disposed in alignment with the transverse opening or sleeve 23 formed in the hull 12.
  • the respective piles 16 are canted inwardly at their upper ends toward the center of platform 10, and further supported at the periphery of the working deck 13.
  • deck 13 can be elevated to any desired position along the central or support column 14.
  • the latter is further provided with means for releasably holding the respective piles in a fixed position at the periphery of the deck so as to maintain the stability of the unit even though the latter is subjected to heavy wave conditions which would cause it to pitch and roll.
  • the mobile pile guide means 22 carried on working deck 13 is such as to be operable along the deck and so positioned at the edge of the latter as to accommodate and guide a single pile as the latter is driven into the substratum.
  • the controlled buoyancy hull 12 is flooded or ballasted so that the latter sinks to the floor of the offshore site.
  • Deck 13 comprises a water tight hull and provides both buoyancy, and a stabilizing effect during the sinking operation. As base 12 is lowered to the bottom, deck 13 is jacked up along column 14.
  • the means securing the piles is adjusted to permit the rising deck 13 to slide along the piles edges and yet maintain a releasable grip on the latter so that they are not displaced vertically due to the movement of the deck and/or the entire platform.
  • piles l6 become aligned with hull openings 23 and are released and embedded one by one into the substratum. This is achieved by aligning the pile guide mechanism 22 with a pile 16 to be driven and thereafter lowering the latter or adding pile sections thereto should the necessary pile lengths require such operation.
  • the pile guide mechanism 22 includes carriage 26 which is operably carried on a pair of tracks 27 and 28, and is shown in FIG. 5.
  • the first of said tracks 27 is disposed at the deck upper surface and extends about the periphery thereof.
  • Lower track 28 similarly is disposed at the deck periphery and arranged to exert a horizontal force against thecarriage 26 to properly support a pile.
  • a plurality of support wheels 31 are journaled at the carriage upper end and supported by the circular upper track 27.
  • a plurality of laterally positioned guide wheels 33 and 34 engage track 27 whereby to stabilize the carriage as the latter is moved between operating positions.
  • a similar arrangement is disposed at the lower portion of the carriage 26 embodying a plurality of guide wheels 36 and 37, which engage a flange on the said lower track 28.
  • FIG. 6 the elongated pile lead or slide 40 is shown extending outboard from the platform and is supported on the carriage by hinge 35 near the carriage upper end, and connected with pins 39.
  • said pile lead 40 is so arranged to adjust its vertical angularity whereby to best accommodate a pile as the latter is being driven into the substratum.
  • the angular disposition of pile slide 40 is regulated by one or more lower hydraulic cylinders 43 or an appropriate mechanical linkage carried on carriage 26, which cylinders or linkages are secured to leads 46 and 47 at the slide undersurface.
  • the angle of the pile slide 40 is adjustable to support the upper end of a pile 16 during the driving operation.
  • Said pile lead or slide 40 comprises a pair of parallel extending sides 46 and 47 which are fastened by transverse frames 51 extending therebetween as shown in FIGS. 4 and 6.
  • a plurality of concave faced rollers 52 are disposed along the pile slide, and journaled to permit free movement thereof as a pile 16 is progressively driven downward.
  • FIG. 7 illustrates a cross section of slide 40 with pile driving hammer 50 operably supported thereon by rollers 48 and 49.
  • the hammer is supported vertically by the pile during the driving operation and is handled on and off the pile by a crane operably guided on tracks 31 and 32.
  • a pile 16 is restrained in the manner noted along the pile lead 40, it is driven downwardly therethrough by a pile driver 50.
  • the latter comprises an apparatus, although not presently shown, which is well known in the art and is normally structured as to assume a desired angle. In the instant arrangement, it would be adapted to accommodate-the particular pile being driven.
  • the pile driving mechanism is disposed adjacent the pile supporting carriage 26 and the driving mechanism is controllably actuated to drive a pile downwardly along lead 40.
  • a removable pile follower can be inserted in the pile and the hammer replaced on the follower to complete the driving operatlon.
  • a floatable marine structure adapted to be fixedly positioned to the floor of an offshore site which comprises;
  • controllable buoyancy means operable to regulate the disposition of said marine structure within a body of water
  • a working deck operably received on said support means and being longitudinally movable along the .latter to regulate the disposition of said working deck with respect to said hull
  • anchor piles removably carried on said marine structure, being aligned in position to be embedded into the substratum beneath said body of water when said hull is submerged to rest on the floor of the latter,
  • pile guide means operably carried on said working deck and being adjustable to slidably support a pile as the latter is embedded into said substratum
  • said track includes; a portion thereof being disposed outboard of said deck, and said pile guide means includes a carriage extending between the deck edge to be supported on said track.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Earth Drilling (AREA)
US00212074A 1971-12-27 1971-12-27 Articulated marine structure with prepositioned anchoring piles Expired - Lifetime US3751930A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21207471A 1971-12-27 1971-12-27

Publications (1)

Publication Number Publication Date
US3751930A true US3751930A (en) 1973-08-14

Family

ID=22789449

Family Applications (1)

Application Number Title Priority Date Filing Date
US00212074A Expired - Lifetime US3751930A (en) 1971-12-27 1971-12-27 Articulated marine structure with prepositioned anchoring piles

Country Status (4)

Country Link
US (1) US3751930A (da)
CA (1) CA970580A (da)
DK (1) DK141413B (da)
NO (1) NO136650C (da)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5097136A (da) * 1973-12-26 1975-08-01
US4084385A (en) * 1976-08-02 1978-04-18 Varco International, Inc. Pile handing methods
US4238166A (en) * 1978-04-07 1980-12-09 Raymond International Builders, Inc. Underwater driving of piles
WO1981001310A1 (en) * 1979-11-02 1981-05-14 Ostlund As Method and column for collection and separation of oil,gas and water from blowing wells at the sea bed
US4307785A (en) * 1977-02-07 1981-12-29 Ortemund Leon D Pile driving rig having angulating knuckle lead therefor
US4618286A (en) * 1984-02-16 1986-10-21 Fluor-Doris Incorporated Composite platform for petroleum workings in polar seas
US5127767A (en) * 1989-01-11 1992-07-07 Maersk Olie Og Gas A/S Method and a device for mounting the piles associated with the installation of a pile-founded offshore platform
GB2256889A (en) * 1991-06-19 1992-12-23 Kvaerner Earl & Wright Offshore structure and installation method
GB2460172A (en) * 2008-05-24 2009-11-25 Marine Current Turbines Ltd Installation of a pile in the seabed using a guide structure
US20110002741A1 (en) * 2009-06-30 2011-01-06 William Dennis Nottingham Modular offshore platforms and associated methods of use and manufacture
US20110315396A1 (en) * 2010-06-24 2011-12-29 Subsea IP Holdings LLC Method and apparatus for controlling valves of a subsea oil spill containment assembly
US20110315393A1 (en) * 2010-06-24 2011-12-29 Subsea IP Holdings LLC Method and apparatus for containing an undersea oil and/or gas spill caused by a defective blowout preventer (bop)
US20120020742A1 (en) * 2010-07-22 2012-01-26 Mahmoud Mostafa H Underwater Reinforced Concrete Silo for Oil Drilling and Production Applications
US20120128434A1 (en) * 2010-10-21 2012-05-24 Conocophillips Company Ice worthy jack-up drilling unit with conical piled monopod
US20120128435A1 (en) * 2010-10-21 2012-05-24 Conocophillips Company Ice worthy jack-up drilling unit with conical piled monopod and sockets
US20130202360A1 (en) * 2012-02-03 2013-08-08 Nordic Yards Holding Gmbh Base Frame for an Offshore Platform and Method for Installing Such a Base Frame
CN104417726A (zh) * 2013-09-11 2015-03-18 财团法人船舶暨海洋产业研发中心 离岸式浮船施工法
US20150211200A1 (en) * 2012-07-20 2015-07-30 Itogumi Construction Co., Ltd., Pile foundation and pile foundation installation method
US9657454B2 (en) 2000-07-28 2017-05-23 Pnd Engineers, Inc. Earth retaining system such as a sheet pile wall with integral soil anchors
US10024017B2 (en) 2009-09-11 2018-07-17 Pnd Engineers, Inc. Cellular sheet pile retaining systems with unconnected tail walls, and associated methods of use
US20180355575A1 (en) * 2017-06-12 2018-12-13 Ship And Ocean Industries R&D Center Operating method of pile guide frame coupled with rotatable arm
US20180355574A1 (en) * 2017-06-12 2018-12-13 Ship And Ocean Industries R&D Center Pile guide frame coupled with rotatable arm
US20200385946A1 (en) * 2017-12-07 2020-12-10 Ihc Holland Ie B.V. A coupling system, an assembly of a vessel and a coupling system, and an assembly of a coupling system, jacket pile and foundation pile
US11346071B2 (en) * 2014-08-21 2022-05-31 Ihc Holland Ie B.V. Method of and system for installing foundation elements in an underwater ground formation

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1020555A (da) *
US2927435A (en) * 1955-09-23 1960-03-08 Raymond Int Inc Offshore platforms
US3224204A (en) * 1963-08-15 1965-12-21 Shell Oil Co Method of anchoring an offshore structure
GB1104352A (en) * 1963-08-28 1968-02-28 Christiani & Nielsen Ltd Improvements in and relating to methods of and apparatus for building marine structures such as lighthouses
US3524322A (en) * 1968-06-27 1970-08-18 Texaco Inc Splay footed platform anchor
US3668876A (en) * 1970-04-20 1972-06-13 Brown & Root Offshore tower apparatus and method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1020555A (da) *
US2927435A (en) * 1955-09-23 1960-03-08 Raymond Int Inc Offshore platforms
US3224204A (en) * 1963-08-15 1965-12-21 Shell Oil Co Method of anchoring an offshore structure
GB1104352A (en) * 1963-08-28 1968-02-28 Christiani & Nielsen Ltd Improvements in and relating to methods of and apparatus for building marine structures such as lighthouses
US3524322A (en) * 1968-06-27 1970-08-18 Texaco Inc Splay footed platform anchor
US3668876A (en) * 1970-04-20 1972-06-13 Brown & Root Offshore tower apparatus and method

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5097136A (da) * 1973-12-26 1975-08-01
JPS5549217B2 (da) * 1973-12-26 1980-12-10
US4084385A (en) * 1976-08-02 1978-04-18 Varco International, Inc. Pile handing methods
US4307785A (en) * 1977-02-07 1981-12-29 Ortemund Leon D Pile driving rig having angulating knuckle lead therefor
US4238166A (en) * 1978-04-07 1980-12-09 Raymond International Builders, Inc. Underwater driving of piles
WO1981001310A1 (en) * 1979-11-02 1981-05-14 Ostlund As Method and column for collection and separation of oil,gas and water from blowing wells at the sea bed
US4618286A (en) * 1984-02-16 1986-10-21 Fluor-Doris Incorporated Composite platform for petroleum workings in polar seas
US5127767A (en) * 1989-01-11 1992-07-07 Maersk Olie Og Gas A/S Method and a device for mounting the piles associated with the installation of a pile-founded offshore platform
GB2256889A (en) * 1991-06-19 1992-12-23 Kvaerner Earl & Wright Offshore structure and installation method
US5383748A (en) * 1991-06-19 1995-01-24 Kvaerner Earl And Wright (A Division Of Kvaerner H&G Offshore Ltd.) Offshore structure and installation method
GB2256889B (en) * 1991-06-19 1995-07-12 Kvaerner Earl & Wright Offshore structure and installation method
US10287741B2 (en) 2000-07-28 2019-05-14 Pnd Engineers, Inc. Earth retaining system such as a sheet pile wall with integral soil anchors
US9657454B2 (en) 2000-07-28 2017-05-23 Pnd Engineers, Inc. Earth retaining system such as a sheet pile wall with integral soil anchors
GB2460172A (en) * 2008-05-24 2009-11-25 Marine Current Turbines Ltd Installation of a pile in the seabed using a guide structure
GB2460172B (en) * 2008-05-24 2013-01-02 Marine Current Turbines Ltd Installation of structures in water
US8444348B2 (en) * 2009-06-30 2013-05-21 Pnd Engineers, Inc. Modular offshore platforms and associated methods of use and manufacture
US20110002741A1 (en) * 2009-06-30 2011-01-06 William Dennis Nottingham Modular offshore platforms and associated methods of use and manufacture
US11149395B2 (en) 2009-09-11 2021-10-19 Pnd Engineers, Inc. Cellular sheet pile retaining systems with unconnected tail walls, and associated methods of use
US10024017B2 (en) 2009-09-11 2018-07-17 Pnd Engineers, Inc. Cellular sheet pile retaining systems with unconnected tail walls, and associated methods of use
US20110315396A1 (en) * 2010-06-24 2011-12-29 Subsea IP Holdings LLC Method and apparatus for controlling valves of a subsea oil spill containment assembly
US20110315393A1 (en) * 2010-06-24 2011-12-29 Subsea IP Holdings LLC Method and apparatus for containing an undersea oil and/or gas spill caused by a defective blowout preventer (bop)
US20110315395A1 (en) * 2010-06-24 2011-12-29 Subsea IP Holdings LLC Method and apparatus for containing a defective blowout preventer (bop) stack using bopstopper assemblies having remotely controlled valves and heating elements
US8684630B2 (en) * 2010-07-22 2014-04-01 Mostafa H. Mahmoud Underwater reinforced concrete silo for oil drilling and production applications
US20120020742A1 (en) * 2010-07-22 2012-01-26 Mahmoud Mostafa H Underwater Reinforced Concrete Silo for Oil Drilling and Production Applications
US20120128435A1 (en) * 2010-10-21 2012-05-24 Conocophillips Company Ice worthy jack-up drilling unit with conical piled monopod and sockets
US8870497B2 (en) * 2010-10-21 2014-10-28 Conocophillips Company Ice worthy jack-up drilling unit with conical piled monopod
US8807875B2 (en) * 2010-10-21 2014-08-19 Conocophillips Company Ice worthy jack-up drilling unit with conical piled monopod and sockets
US20120128434A1 (en) * 2010-10-21 2012-05-24 Conocophillips Company Ice worthy jack-up drilling unit with conical piled monopod
US9234326B2 (en) * 2012-02-03 2016-01-12 Nordic Yards Holding Gmbh Base frame for an offshore platform and method for installing such a base frame
US20130202360A1 (en) * 2012-02-03 2013-08-08 Nordic Yards Holding Gmbh Base Frame for an Offshore Platform and Method for Installing Such a Base Frame
US20150211200A1 (en) * 2012-07-20 2015-07-30 Itogumi Construction Co., Ltd., Pile foundation and pile foundation installation method
US9518368B2 (en) * 2012-07-20 2016-12-13 Itogumi Construction Co., Ltd. Pile foundation and pile foundation installation method
CN104417726A (zh) * 2013-09-11 2015-03-18 财团法人船舶暨海洋产业研发中心 离岸式浮船施工法
US11346071B2 (en) * 2014-08-21 2022-05-31 Ihc Holland Ie B.V. Method of and system for installing foundation elements in an underwater ground formation
US20180355575A1 (en) * 2017-06-12 2018-12-13 Ship And Ocean Industries R&D Center Operating method of pile guide frame coupled with rotatable arm
US10487470B2 (en) * 2017-06-12 2019-11-26 Ship And Ocean Industries R&D Center Operating method of pile guide frame coupled with rotatable arm
US10494785B2 (en) * 2017-06-12 2019-12-03 Ship And Ocean Industries R&D Center Pile guide frame coupled with rotatable arm
CN109024599A (zh) * 2017-06-12 2018-12-18 财团法人船舶暨海洋产业研发中心 旋臂式样架
US20180355574A1 (en) * 2017-06-12 2018-12-13 Ship And Ocean Industries R&D Center Pile guide frame coupled with rotatable arm
US20200385946A1 (en) * 2017-12-07 2020-12-10 Ihc Holland Ie B.V. A coupling system, an assembly of a vessel and a coupling system, and an assembly of a coupling system, jacket pile and foundation pile

Also Published As

Publication number Publication date
NO136650B (da) 1977-07-04
DK141413C (da) 1980-09-01
DK141413B (da) 1980-03-10
NO136650C (no) 1977-10-12
CA970580A (en) 1975-07-08

Similar Documents

Publication Publication Date Title
US3751930A (en) Articulated marine structure with prepositioned anchoring piles
US3754403A (en) Offshore marine structure embodying anchor pile means
US5551802A (en) Tension leg platform and method of installation therefor
US3896628A (en) Marine structures
US3797256A (en) Jack-up type offshore platform apparatus
US2589146A (en) Submersible deepwater drilling apparatus
US3540396A (en) Offshore well apparatus and system
JPS6315381Y2 (da)
US3793840A (en) Mobile, arctic drilling and production platform
US3572044A (en) Multiunit offshore platform
US3708985A (en) Articulated marine platform
US3872679A (en) Apparatus and method for reducing the forces on extendible legs of a floating vessel
US4618286A (en) Composite platform for petroleum workings in polar seas
US3528254A (en) Offshore platform structure and construction method
EA002258B1 (ru) Система установки палубы на морском основании
US3996754A (en) Mobile marine drilling unit
US3852969A (en) Offshore platform structures
US4063426A (en) Three column tower
US4266887A (en) Self-elevating fixed platform
US2657540A (en) Method of erecting and positioning marine structures
EP0035023A1 (en) METHOD AND APPARATUS FOR THE WEIGHT BASE OF A RUBBER PLATFORM.
US3667239A (en) Anchor for buoyant marine structures
US3624702A (en) Offshore platform support
US3643446A (en) Marine platform foundation member
US2667038A (en) Subaqueous supporting structure for working platforms