US3713415A - Ship mooring arrangement and a submerged oil storage tank - Google Patents

Ship mooring arrangement and a submerged oil storage tank Download PDF

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Publication number
US3713415A
US3713415A US00118921A US3713415DA US3713415A US 3713415 A US3713415 A US 3713415A US 00118921 A US00118921 A US 00118921A US 3713415D A US3713415D A US 3713415DA US 3713415 A US3713415 A US 3713415A
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US
United States
Prior art keywords
tank
main frame
storage tank
ship
ballast tank
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
US00118921A
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English (en)
Inventor
Y Arita
K Ninomiya
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Mitsubishi Heavy Industries Ltd
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Mitsubishi Heavy Industries Ltd
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Filing date
Publication date
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Publication of US3713415A publication Critical patent/US3713415A/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/20—Equipment for shipping on coasts, in harbours or on other fixed marine structures, e.g. bollards
    • E02B3/24—Mooring posts
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/20—Equipment for shipping on coasts, in harbours or on other fixed marine structures, e.g. bollards
    • E02B3/26—Fenders
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways

Definitions

  • ABSTRACT [30] Foreign Application Priority Data
  • a ship mooring arrangement comprising a movable March 5, 1970 Japan ..45/18304 fender System capable of varying the Spring Constant optionally by selecting the dimensions and shapes of a 52 US. Cl. ..114/230, 61/48, 114/219 fender mechanism and a ballast tank yp of g [51] Int.
  • This invention relates to a ship mooring arrangement which is very effective for use in gathering, storing and loading oil.
  • the oil excavated from an undersea oil field is fed from a flow station through a gathering station and a submarine pipe to a land oil storage tank, and the oil is shipped again through the submarine pipe to a mooring arrangementin the offing.
  • a long submarine pipe is necessary, and yet huge facilities for feeding oil to the tank on land is also required.
  • a mooring arrangement must be provided far from the land, since a modern tanker requires large depth of the sea as its structure becomes enlarged, and accordingly expensive construction cost is incurred.
  • it is desirable to decrease the construction expense by providing a facility which has functions of gathering, storing and loading oil in the oil field district.
  • This invention contemplates to provide a ship mooring arrangement which may sufficiently satisfy the aforementioned necessity, and the scope of this invention resides in a ship mooring arrangement which adopts a movable fender system capable of selecting any spring constant by selecting dimensions and shapes of both fender mechanism, and weight, and fixes the main frame of mooring arrangementto the foot of the oil storage tank in such a way that the posts of the main frame are fixed rigidly to the anchoring piles of the tank and which also adopts the ballast tank type of weight of the fender system to be filled with water to be sunk onto the top of the tank.
  • the present invention may lighten the weight of facility and may also reduce the construction expense.
  • FIG. 1 is a plan view of a ship mooring arrangement according to the present invention
  • FIGS. 2 through 5 are sectional views of the arrangement taken along the lines and arrows A,B,C and D, respectively in FIG. 1
  • FIG. 6 is an analytical view of a fender system in accordance with this invention.
  • reference numeral 1 illustrates a submarine oil storage tank, 2 a ship mooring arrangement, 3 a platform for accomodatinga facility for loading and unloading oil to or from a moored ship 4. If the oil is supplied directly to the oil storage tank 1 from a flow station as in they case of oil field districts, a gas separating plant (not shown) is provided on the platform 3.
  • a gas separating plant (not shown) is provided on the platform 3.
  • reference numeral 10 designates an outer shell of the tank having proper curvature, 1b and 10 supporting frames of the outer shell 1a, 1d beams provided on a bottom plate, 1e foot of the tank filling concrete, 1 f piles for anchoring the tank on the sea bottom and numerals lg and 1h designate respectively openings for flowing in and out seawater into and from the tank and these are provided on the supporting frames 1b.
  • reference numeral 2a depicts main frames of the ship mooring arrangement fixed to the foot 1e of the oil storage tank 1, 2b a movable fender frame, 20 a pivot pin for mounting the fender frame rotatably onto the main frame 2a of the mooring arrangement, 2d a fender, 2e weights of ballast type for absorbing the energy caused in case of mooring the ship for.
  • FIG. 1 depicts main frames of the ship mooring arrangement fixed to the foot 1e of the oil storage tank 1, 2b a movable fender frame, 20 a pivot pin for mounting the fender frame rotatably onto the main frame 2a of the mooring arrangement, 2d a fender, 2e weights of ballast type for absorbing the energy caused in case of mooring the ship for.
  • 3a a platform for loading various facilities for loading and unloading the oil and various devices and equipment for separating gas if required
  • 3b designates posts of the platform of which inner hollow portions serve as oil passages
  • 3c is an opening for introducing the oil in the storage tank 1 to said oil passage.
  • the submarine oil storage tank 1 has spherical outer shell 1a of the tank as shown in FIG. 2 to form an economical structure againstthe inner pressure produced when oil is filled within'the tank, and the tank of a huge capacity has plural spherical outer shells to make the structure economic and convex outer shell la to reduce the quantity of the mixed layer of seawater and oil when the residual oil is slight, and the tank itself is constructed in a spherical shape by the outer shell 1a of the tank, supporting frames 1b and 1c, and beams 1d of the bottom plate so as to provide an economic construction for the inner pressure and wave pressure.
  • Thesupporting frame 1b is so constructed as to be in closed section of water-tight type, and an opening lg opened outwardly is provided at the upper portion of the supporting frame and an opening 1h opened in the tank 1 is provided at the lower portion of the supporting frame, whereby as oil is introduced into the tank or is fed out of the tank, the seawater within the tank is optionally discharged from the tank or is flown into the tank, thus, the buoyancy of the tank is reduced. And, concrete is filled into the foot 1e of the tank in order to prevent the tank from floating due to the buoyancy produced as oil is filled into the tank and floating pressure caused by the wave, and to also prevent the tank from sliding due to the horizontal force produced by the tide.
  • a movable fender system comprises a fender system 2b, a pivot pin 20, a fender 2d and a weight 2e. Said fender system 2b rotates around said pivot pin 20 so as to greatly decrease the shocking force of the ship upon mooring.
  • the present movable fender system may absorb the contacting energy of the ship to the shore by the buoyancy of the weight 2e and displaced amount thereof by rotating the fender mechanism 2b around the rotary pin 20 as a center when the contacting energy of the ship to the shore is applied tothe system.
  • the energy absorbed by the novel fender system increases greatly by the rotation of the fender mechanism and the spring constant of the fender mechanism may be selected op tionally depending upon the dimensions and shapes of the fender system and weight.
  • the weight 2e is constructed as a type of a ballast tank, and so the external force to be applied to the rotary pin 20 and main mechanism 2a in case of stormy weather, can be decreased by pouring water into'the tank so that the latter be sunk onto the base 2h.
  • the oil produced from the well in the oil field is fed through the flow station to the gathering and loading platform by the sea bottom pipe, after gas is separated therefrom, it is stored in the oil storage tank, and the oil may be shipped by approaching the tanker to the shore, with the result that the arrangement of this invention may be utilized as a facility having general functions of gathering, storing and shipping the oil.
  • the mooring arrangement can be utilized independently of the oil storage tank facility and, conversely, the submerged oil storage tank can be used, if desired without the mooring frame construction.
  • a ship mooring arrangement comprising a submerged elongated storage tank having a flat bottom anchored to the sea bottom and generally convexly curved exterior walls, said tank having a top provided with at least one generally planar platform, a main frame having a base connected to said tank and anchored in the sea bottom, said main frame extending upwardly above the sea surface a predetermined distance above said platform, said arrangement further including at least one adjustable fender comprising a support frame pivotally mounted about a generally horizontal pivot axis on said main frame adjacent said planar platform of said storage tank, said support frame having a ship engaging member attached thereto on one side of said pivot axis, located outside of said main frame, and a ballast tank attached on the opposite side of said ivot axis and located inside of said main frame substan rally directly above said planar platform and spaced therefrom a predetermined distance, said ballast tank being adapted to be filled with a liquid to ad-.
  • ballast tank having a liquid holding capacity and said support frame having dimensions so that said ballast tank can be sunk to come in contact with said planar platform.
  • said storage tank has an upper and a lower side and at least one opening in each of said sides so that when oil is fed to or from said storage tank through one of said openings, sea water will pass out of or into, respectively, said storage tank through the other of said openings in proportion to the oil displaced.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Revetment (AREA)
US00118921A 1970-03-05 1971-02-25 Ship mooring arrangement and a submerged oil storage tank Expired - Lifetime US3713415A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45018304A JPS506959B1 (enExample) 1970-03-05 1970-03-05

Publications (1)

Publication Number Publication Date
US3713415A true US3713415A (en) 1973-01-30

Family

ID=11967858

Family Applications (1)

Application Number Title Priority Date Filing Date
US00118921A Expired - Lifetime US3713415A (en) 1970-03-05 1971-02-25 Ship mooring arrangement and a submerged oil storage tank

Country Status (5)

Country Link
US (1) US3713415A (enExample)
JP (1) JPS506959B1 (enExample)
FR (1) FR2084230A5 (enExample)
GB (1) GB1319169A (enExample)
NL (1) NL7102286A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040216485A1 (en) * 2003-05-01 2004-11-04 Landry David Charles Berthing method and system
CN106184626A (zh) * 2016-07-29 2016-12-07 中国海洋石油总公司 张力腿平台的码头系泊方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5255657U (enExample) * 1975-10-20 1977-04-21
GB2418914B (en) 2004-10-08 2008-11-26 Electromagnetic Geoservices As Controlled deterioration of non-reinforced concrete anchors

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040216485A1 (en) * 2003-05-01 2004-11-04 Landry David Charles Berthing method and system
US7287484B2 (en) * 2003-05-01 2007-10-30 David Charles Landry Berthing method and system
CN106184626A (zh) * 2016-07-29 2016-12-07 中国海洋石油总公司 张力腿平台的码头系泊方法

Also Published As

Publication number Publication date
NL7102286A (enExample) 1971-09-07
JPS506959B1 (enExample) 1975-03-19
FR2084230A5 (enExample) 1971-12-17
GB1319169A (en) 1973-06-06

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