US3815540A - Drilling platform with corresponding supply vessel - Google Patents

Drilling platform with corresponding supply vessel Download PDF

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Publication number
US3815540A
US3815540A US00331175A US33117573A US3815540A US 3815540 A US3815540 A US 3815540A US 00331175 A US00331175 A US 00331175A US 33117573 A US33117573 A US 33117573A US 3815540 A US3815540 A US 3815540A
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US
United States
Prior art keywords
drilling platform
vessel
supply vessel
platform
drilling
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
US00331175A
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English (en)
Inventor
H Peereboom
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 NV
Original Assignee
IHC Holland NV
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 NV filed Critical IHC Holland NV
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Publication of US3815540A publication Critical patent/US3815540A/en
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    • 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
    • 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
    • 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
    • B63B35/66—Tugs
    • B63B35/665—Floating propeller units, i.e. a motor and propeller unit mounted in a floating box
    • 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
    • B63B35/66—Tugs

Definitions

  • the present invention relates to a drilling platform or similar movable installation with a corresponding supply vessel, whichis simultaneously adapted to propel the drilling platform or the movable installation to the form is towed by one or more tugs with the aid of long tow-ropes or hawsers. With the other method the drilling platform itself is equipped with propellers and navigational equipment, so that tugs have become superfluous.
  • the drilling platform is generally provided with its own power for drilling, raising, and similar purposes, which is generally on the order of magnitude of 4,000 hp.
  • the power required for the propulsion of a self propelled drilling platform, or adrilling platform propelled with the aid of one-ormore tugs is generally about 8,000 h.p.
  • the power required for towing the drilling platform is simply generated by choosing the appropriate number of tugs.
  • the acquisition of tugs generally does not present any problems, while furthermore this method does not require any expensive provisions, however, a great disadvantage of this method is that transportation is slow and therefore expensive due tothe unfavourable shape of the drilling platform to be towed, this causes a high resistance to be produced, which slows down the speed of the transport.
  • a further disadvantage is the fact that the drilling platform is practically left to the mercy of the sea in case the hawser's get broken, in a storm for instance, when it can be a most difficult job to renew the contact.
  • a further disadvantage is the possibility that towing a drilling platform is a new experience to the crew of a tug. Ignorance and inexperience where towing drilling platforms is concerned may lead to further errors and delays. Furthermore manoeuvring a drilling platform being towed is a'relatively complicated procedure.
  • the second method i.e. the method in which the drilling platform is self-propelled, requires additional power to be installed inthe drillingplatform, more particularly for the propulsion and displacement of the same.
  • the shape and lay-out of the drilling platfonn have to be adapted to the location of the propellers and the driving gear.
  • the drilling platform will generally have to be given a reasonably stream-lined shape in order to be able to move at a fair and yet safe speed.
  • a further disadvantage is that the drilling platform must be provided with navigational apparatuses, additional crew, additional accommodation, etc.
  • a drilling platform generally needs a supply vessel, said vessel carryingthe required stores, food, mud, drills, etc.
  • the supply vessel can simply serve as one of the tugs.
  • the supply vessel is not used as the only tug, inasmuch as such a vessel has not got the capacity for towing the drilling platform at a safe speed, for instance, in case of a storm, tides, and'the like.
  • the drilling platform is not only self-propelled but needs a supply vessel as well, this makes this method even more expensive when compared with the towing method.
  • the object of the present invention is to eliminate the disadvantages of both the aforementioned methods and to provide a better method for displacing a drilling platform.
  • a source of energy comprising supply vessel is generally on the order of magnitude of an engine and generator or pump, while the supply vessel is simultaneously provided with a driving propeller with driving motor, which is connected with the generator and pump of the vessel respectively, whereby the driving motor(s') of the propeller(s) of the supply vessel is (are) suited to receive simultaneously the full power of both the generator or pump of the supply vessel and the generator or pump of the platform, means having beenprovidedin order to connectvessel with platform in propelling or towing connection, and means to conmeet the generator or pump of the platform with a propeller driving engine of the supply vessel in said connected condition.
  • the presentinvention provides a method for displacing a drilling'platform withthe aid of one vessel, and this the supply vessel, whereby the drilling platform can be propelled to its destination at a satisfactory and safe speed by making use for the propulsion of said drilling platform of the source of energy present on the drilling platform as well as of the source of energy present on the vessel itself.
  • a supply vessel having a power of about 4,000 hp. of its own plus a power of about 4,000 hp. originating from the drilling platform.
  • the rear portion of the vessel is connected with the drilling platform in said recessed portion.
  • the disadvantage is that the propeller(s) of the vessel are between the vessel and the drilling platform, so that a satisfactory propeller action and propeller flow are interfered with.
  • additional provisions are required, such as additional propellers and driving motors in the bow portion of the vessel. If the additional propellers are reversible cycloid propellers the vessel can either tow the drilling platform or push it.
  • the combined drilling platform-vessel according to the present invention has more particularly advantages from an economic point of view with respect to the conventional methods for the displacement of a drilling platform, i.e. towing and self-propulsion.
  • the initial costs When compared with the towing method the initial costs will be higher on account of the required provisions on the vessel and the drilling platform according to the invention, but the cost of transport will be considerably lower because the conventional towing operation with a number of tugs is a time-comsuming and expensive procedure.
  • the economic advantage is even greater with respect to a self-propelled drilling platform.
  • the initial costs of such a platform increased by the cost of a conventional vessel for the supplies, are considerably higher than those of the installation according to the invention.
  • the operational costs are higher on account of the numerous provisions required on such a drilling platform with a propulsion of its own, such as propellers, additional engines, navigational means, additional crew, and the like.
  • FIG. 1 is a top view of a drilling platform with a pushing supply vessel according to a preferred embodiment of the invention
  • FIG. 2 is a side view of the drilling platform with vessel of FIG. 1 on an enlarged scale
  • FIG. 3 is a top view of a drilling platform with a towing supply vessel according to an alternative embodiment of the invention.
  • FIG. 4 is a side view, on an enlarged scale, of the drilling platform with vessel of FIG. 3.
  • FIG. 1 shows a drilling platform I with four columns (la, lb, 1c and 1d) and a slight stream-lined shape at the front in front of the columns la and lb.
  • the drilling platform I has been provided with a diesel engine 2 with a coupled generator 3, which is adapted to provide the required energy, for instance, for raising and drilling. Every drilling platform is generally provided with such a diesel engine-generator combination, so that these provisions are not a novelty.
  • a recessed portion 4 At the rear portion of the drilling platform I is provided a recessed portion 4. Drilling through this recessed portion is a normal procedure.
  • a pushing vessel 5 fits with its front portion in the recessed portion 4 of the drilling platform 1.
  • FIGS. 1 shows a drilling platform I with four columns (la, lb, 1c and 1d) and a slight stream-lined shape at the front in front of the columns la and lb.
  • the drilling platform I has been provided with a diesel engine 2 with a coupled generator 3, which is adapted to provide
  • the pushing vessel 5 is provided with a diesel engine 7 with a coupled generator 8.
  • the generator 8 is connected with one or more electric motors 9, which are adapted to energize adjustable propeller or propellers 10. If the pushing vessel 5 is connected with the drilling platform 1, as is shown in the drawing, a connection can be made in a cable 11 between the generator 3 of the drilling platform 1 and the electric motor(s) 9 of the pushing vessel 5.
  • the electric motor(s) 9 has (have) a sufficiently large capacity to take up both the full power of 'the generator 3 of the drilling platform 1, for instance, 4,000 hp, and the power of v the generator 8 of the'pushing vessel 5 itself, for instance, 4,000 hp. and to transfer the combined power to the propellers 10.
  • the power of the generator 3 of the drilling platform 1 is transferred through the cable 11 to the pushing vessel 5 and is there taken up and used by the electric motor(s) 9 to which also they power of its own generator 8 is transferred.
  • the electric motor(s)- 9 transfer the combined power to the propellers 10 with the result that the pushing vessel 5 has a sufficient total capacity to propel the drilling platform 1 with a fair, safe speed to be disconnected, for instance, to serve as supply vessel, the cable 11 is interrupted by detaching a connecting piece in said cable which may be fitted in any chosen spot in said cable 11. Subsequently the removable connecting means 6 are taken away, so that it is possible for the vessel 5 to sail away from the recessed portion 4 of the drilling platform.
  • the drive means 9 is fed only by the generator 8 of the vessel 5 itself, which is sufficient for normal use.
  • FIGS. 3 and 4 an alternative embodiment of the invention is shown.
  • the stern of the supply vessel is in the recessed portion of the drilling platform and connected with the drilling platform.
  • Like elements are denoted by like reference numerals, as in FIGS. 1 and 2.
  • the supply vessel 5 is provided with an additional drivingmotor 9 with additional propeller(s) 10 (see FIG. 4) in the front portion of the vessel.
  • the generators 3 and 8 supply their energy to the driving motor(s) 9 for driving the propellers 10.
  • This embodiment is also suited to push instead of to tow the drilling platform. In that case the vessel 5 sails backwards.
  • the propellers 10 are reversible propellers, it is possible either to push or to tow the drilling platform in the coupled condition, as is shown in FIGS. 3 and 4.
  • the supply vessel 5 may, for instance, be condevices than the connecting members 6 and in a different manner.
  • The'propellers of the vessel may be cycloid propellers.
  • the system to transfer the energy from drilling platform to vessel may be a hydraulic system, in which the system comprises pumps and hydromotors instead of generators and electric motors. it is possible to provide the supply vessel with a second motor which is connectable by means of a propeller shaft and can only be taken up in the circuit of the generator or pump of the drilling platform.
  • Apparatus as claimed in claim 1 one side of said drilling platfonn having a recess through which drilling operations are conducted in the absence of said supply vessel, said interconnecting means releasably connecting one end of said supply vessel in said recess to said platform.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Catching Or Destruction (AREA)
  • Earth Drilling (AREA)
US00331175A 1972-02-10 1973-02-09 Drilling platform with corresponding supply vessel Expired - Lifetime US3815540A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7201761.A NL160769C (nl) 1972-02-10 1972-02-10 Booreiland met bijbehorende verzorgingsboot.

Publications (1)

Publication Number Publication Date
US3815540A true US3815540A (en) 1974-06-11

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ID=19815344

Family Applications (1)

Application Number Title Priority Date Filing Date
US00331175A Expired - Lifetime US3815540A (en) 1972-02-10 1973-02-09 Drilling platform with corresponding supply vessel

Country Status (4)

Country Link
US (1) US3815540A (da)
JP (1) JPS5743477B2 (da)
GB (1) GB1383862A (da)
NL (1) NL160769C (da)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6276876B1 (en) * 1995-11-06 2001-08-21 Bg Plc Offshore exploration or production operation
US6336419B1 (en) * 1998-06-05 2002-01-08 Navion As Floating structure
US6682265B1 (en) * 1999-05-27 2004-01-27 A.P. Moller-Maersk A/S Method of establishing and/or operating a bore well in a seabed and a drilling vessel for use in connection therewith
US20050172880A1 (en) * 2004-02-09 2005-08-11 Mika Laurilehto Barge arrangement, barge unit and tug unit
US20060053806A1 (en) * 2004-09-13 2006-03-16 Argent Marine Operations, Inc. System and process for transporting LNG by non-self-propelled marine LNG carrier

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3618336A1 (de) * 1986-05-30 1987-12-03 Schiffko Schiffskonstruktion U Eisfahrtfaehiger schiffsverband

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1014313A (en) * 1910-09-15 1912-01-09 William R Macklind Hydrotrain.
US2039399A (en) * 1932-02-19 1936-05-05 Englis John Vessel
US3271964A (en) * 1955-10-21 1966-09-13 Kerr Mc Gee Oil Ind Inc Method of operating a submersible barge for submarine operations
US3442239A (en) * 1968-03-28 1969-05-06 Wilson John H Submergible stabilizer for barges
US3483842A (en) * 1968-10-03 1969-12-16 Aoki Construction Ocean-going push-barge and bargeline

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2375139A (en) * 1942-07-16 1945-05-01 Walter W Schmitt Boat
GB949654A (en) * 1961-04-14 1964-02-19 Atomic Energy Commission Multiple ship propulsion system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1014313A (en) * 1910-09-15 1912-01-09 William R Macklind Hydrotrain.
US2039399A (en) * 1932-02-19 1936-05-05 Englis John Vessel
US3271964A (en) * 1955-10-21 1966-09-13 Kerr Mc Gee Oil Ind Inc Method of operating a submersible barge for submarine operations
US3442239A (en) * 1968-03-28 1969-05-06 Wilson John H Submergible stabilizer for barges
US3483842A (en) * 1968-10-03 1969-12-16 Aoki Construction Ocean-going push-barge and bargeline

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6276876B1 (en) * 1995-11-06 2001-08-21 Bg Plc Offshore exploration or production operation
US6336419B1 (en) * 1998-06-05 2002-01-08 Navion As Floating structure
US6682265B1 (en) * 1999-05-27 2004-01-27 A.P. Moller-Maersk A/S Method of establishing and/or operating a bore well in a seabed and a drilling vessel for use in connection therewith
US20050172880A1 (en) * 2004-02-09 2005-08-11 Mika Laurilehto Barge arrangement, barge unit and tug unit
US7047899B2 (en) 2004-02-09 2006-05-23 Wartsila Finland Oy Barge arrangement, barge unit and tug unit
US20060053806A1 (en) * 2004-09-13 2006-03-16 Argent Marine Operations, Inc. System and process for transporting LNG by non-self-propelled marine LNG carrier
WO2006031634A1 (en) * 2004-09-13 2006-03-23 Argent Marine Operations, Inc System and process for transporting lng by non-self-propelled marine lng carrier
US8499569B2 (en) * 2004-09-13 2013-08-06 Argent Marine Management, Inc. System and process for transporting LNG by non-self-propelled marine LNG carrier

Also Published As

Publication number Publication date
NL160769C (nl) 1979-12-17
NL160769B (nl) 1979-07-16
NL7201761A (da) 1973-08-14
JPS4888701A (da) 1973-11-20
JPS5743477B2 (da) 1982-09-14
GB1383862A (en) 1974-02-12

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