US3385069A - Mobile marine platform apparatus - Google Patents
Mobile marine platform apparatusDownload PDFInfo
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- US3385069A US3385069AUS585119AUS58511966AUS3385069AUS 3385069 AUS3385069 AUS 3385069AUS 585119 AUS585119 AUS 585119AUS 58511966 AUS58511966 AUS 58511966AUS 3385069 AUS3385069 AUS 3385069A
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- hull
- pontoon
- hull assembly
- mobile marine
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- XLYOFNOQVPJJNP-UHFFFAOYSA-NwaterSubstancesOXLYOFNOQVPJJNP-UHFFFAOYSA-N0.000description16
- VJYFKVYYMZPMAB-UHFFFAOYSA-NethoprophosChemical compoundCCCSP(=O)(OCC)SCCCVJYFKVYYMZPMAB-UHFFFAOYSA-N0.000description3
- 238000010276constructionMethods0.000description1
- 238000005553drillingMethods0.000description1
- 230000003028elevating effectEffects0.000description1
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Classifications
- 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
- E02B17/021—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 with relative movement between supporting construction and platform
- 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
- B63B35/34—Pontoons
- B63B35/38—Rigidly-interconnected pontoons
- 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
- E02B2017/0056—Platforms with supporting legs
- E02B2017/006—Platforms with supporting legs with lattice style supporting legs
- 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
- E02B2017/0056—Platforms with supporting legs
- E02B2017/0073—Details of sea bottom engaging footing
- E02B2017/0086—Large footings connecting several legs or serving as a reservoir for the storage of oil or gas
Definitions
- MOBILE MARINE PLATFORM APPARATUSFiled Oct. 7, 1966 I 2 Sheets-Sheet 1 h. "r; QQWMQMMWWW F7 John C Estes May 28, 1968 J. c. ESTES 3,385,069 A MOBILE MARINE PLATFORM APPARATUS Filed 001;. 7, 1966 2 Sheets-Sheet 2 United States Patent 3,385,069 MOBILE MARINE PLATFORM APPARATUS .l'ohn C. Estes, Beaumont, Tcx., assiguor to Bethlehem Steel Corporation, a corporation of Delaware Filed Oct. 7, 1966, Ser. No. 585,119 2 Claims. (Cl.
- the hull of a mobile marine platformcomprises two or more horizontally spaced, parallel ballastable pontoons aligned parallel to the direction of tow. Bracing elements extend between and are secured to the top surfaces of the pontoons. Two vertical columns are secured to the pontoons and one vertical column to the midpoint of a bracing element. An operating platform is mounted to the columns in vertically adjustable relationship to the hull.
- This inventionrelates broadly to mobile marine platform apparatus. More specifically, this invention relates to mobile marine platform apparatus having a divided hull assembly to reduce towing resistance when the apparatus is being moved from one location to another.
- Mobile marine platform apparatussuch as the wellknown offshore drilling barges to be found in great profusion in the Gulf of Mexico, are employed to perform various operations in a marine environment and, as their name implies, are regularly and sometimes quite frequently moved from one location to another location which may be a great distance away.
- Some of these mobile marine platformsare of the type employing a hull or a mat which is a large pontoon structure usually submerged below the water surface and sometimes actually bottomed on the marine floor when one particular kind of platform is set up on location. This hull or mat can create tremendous resistance to towing when the platform is being moved. This has proven to be quite expensive for several reasons which will be apparent to those familiar with this art.
- One of the objects of this inventionis to provide improved mobile marine platform apparatus.
- Another object of this inventionis to provide mobile marine platform apparatus having markedly reduced towing resistance over conventional designs.
- FIGURE 1represents a side view in elevation of mobile marine platform apparatus with the improved hull or mat, the particular apparatus shown being of the type which has the hull or mat bearing on the marine floor when the apparatus is set up on location and ready for operation.
- FIGURE 2represents a partial side view in elevation, showing the mobile marine platform apparatus in floating condition with the hull Or mat at the surface of the water, and ready for towing.
- FIGURE 3represents a partial end view in elevation showing the mobile marine platform apparatus in floating condition, with the hull or mat at the surface of the water, and ready for towing.
- FIGURE 4represents a section taken along the line 4-4 of FIGURE 1, and shows in plan the divided hull or mat.
- FIGURE 5represents a view in plan of the operating platform of the mobile marine platform apparatus, the hull or mat being omitted for purposes of clarity.
- Mobile marine platform apparatus 1is seen, in the particular embodiment shown, as comprising hull assembly 2, columns 3 secured to hull assembly 2 and extending upwardly therefrom, and operating platform 4 through which said columns 3 extend.
- Mobile marine platform apparatus 1is of the wellknown two boat type and it will be recognized that operating platform 4 is actually a portion capable of stably buoyantly supporting the entire apparatus during the time hull assembly 2 is below the surface of water 5 and above the marine floor 6. It will also be recognized that hull assembly 2 is a pontoon means capable of stably buoyantly supporting the entire apparatus in floating condition as shown in FIGURES 2 and 3.
- This particular type of structurecalls for elevating the operating platform 4 above the surface of water 5 to the positiOn shown in FIGURE 1, when setting upon location, and for lowering operating platform 4 to the surface of water 5 pri r to raising hull assembly 2 from the marine floor 6, in preparation for towing to another location.
- jacking means mounted on operating platform 4 in housings 7 and engaging columns 3are provided.
- jacking meansmounted on operating platform 4 in housings 7 and engaging columns 3 are provided.
- jacking meansthere are many types of jacking means currently used in this art for the same purpose and, as the particular design of jacking means forms no part of the present invention, the same will not be further described herein.
- Hull assembly 2comprises two ballastable and deballastable pontoon elements 8, each extending from the bow (right end of hull assembly 2 as viewed in FIGURE 1) to the stern (left end of hull assembly 2 as viewed in FIG- URE 1) of the said hull assembly 2.
- Pontoon elements 8have sufiicient buoyancy when deballasted to collectively support the mobile marine platform apparatus 1 with the said pontoon element 8 having frceboard.
- Various means for ballasting and deballasting pontoonsare well known in this art. As the particular design for ballasting and deballasting means forms no part of the present invention, the same will not be further described herein.
- Brackets 9are suitably secured to the upper surfaces of the said pontoon elements 8, and tubular brace elements 10 are suitably secured to the said brackets 9, whereby the said pontoon elements 8 are rigidly maintained in horizontally spaced parallel relation in a common horizontal plane, to provide a structurally secure hull assembly 2. It will be noted that the said pontoon elements 8 are aligned parallel to the direction of tow which is toward the right of FIGURES 1, 2 and 4.
- Mobile marine platform apparatus 1has, in the disclosed embodiment, three columns 3 interposed between hull assembly 2 and operating platform 4, said columns 3 being arranged relative to each other in the form of an isosceles triangle as viewed in plan (see FIGURE 4). Two of these columns 3, defining the base of the isosceles triangle, are secured at their lower ends directly to the pontoon elements 8, one column 3 on each pontoon element 8. The third column 3 is secured at its lower end, and hence is supported by, one pair of tubular brace elements 1t) midway between the pontoon elements 8. This arrangement provides a sturdy, stable and convenient form of construction.
- the mobile marine platform apparatus 1is set up on location as shown in FIGURE 1, with pontoon elements 8 in at least partially ballasted condition and sitting on marine floor 6.
- Operating platform 4is lowered by the herein mentioned jacking means in h usings 7 until it is in floating position on the surface of the water 5.
- hull assembly 2is elevated from the marine floor 6.
- thisis done initially by employment of the jacking means acting on columns 3 to pull up the hull assembly 2, against the buoyancy of operating platform 4 until brackets 9 engage the underside of operating platform 4.
- pontoon elements 8are deballasted to acquire freeboard whereupon tubular brace elements 10 are elevated above the surface of the water 5.
- Mobile marine platform apparatus 1may now be towed to a new location.
- the only resistance during this towwill be that of the relatively small-beam pontoon elements 8. It will be appreciated that this resistance is only a minor fraction of the resistance that would be offered if hull assembly 2 were a unitary pontoon having a beam extending from the outboard or extreme side of one pontoon element 8 to the outboard or extreme side of the other pontoon element 8. It will also be appreciated that the resistance of the hull assembly 2 f the present invention, when afloat and under tow, is only a minor fraction of the resistance that would be obtained if tubular elements 10 or operating platform 4 had draft while under tOW.
- pontoon elements 8are ballasted and consequently will sink in water until operating platform 4 becomes afloat and acquires suflicient buoyancy to support mobile marine platform apparatus 1. Thereafter, hull assembly 2 is jacked down to marine floor 6. Continued operation of the jacking means will then elevated operating platform 4 out of the water 5 to the position shown in FIGURE 1.
- Hull assembly 2may be used with other types of mobile marine platform apparatus not of the two boat type herein shown.
- hull assembly 2may be used with the well-known floater type rigs in which columns 3 are actually buoyant ballastable cylinders.
- setting up on locationis achieved by submerging hull assembly 2 from a floating condition with freeboard to a submerged position intermediate the surface of the water 5 and marine floor 6, stability being provided by the cylinders.
- hull assembly 2will be deballasted to acquire freeboard, thereby to reduce towing resistance in the same manner and for the same reasons as in the embodiment of mobile marine platform apparatus herein specifically shown.
- Apparatus for marine operationsadapted to be positioned at an operating site over water-covered land and further adapted to be moved from one such operating site to another such operating site, said apparatus comprising:
- a hull assemblyadapted to buoyantly support said operating platform completely above the surface of the water when said apparatus is being moved between operating sites or selectively to be submerged below the surface of the water when said apparatus is positioned at an operating site, said hull assembly comprising:
- brace elementsextending between said pontoon elements
- column meansrigidly secured to said hull assembly and extending upwardly therefrom, said column means comprising a column rigidly secured at its lower end to the midpoint of a brace element,
- said fastening meanscomprising brackets secured to said brace elements and to the top surfaces of said pontoon elements,
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Earth Drilling (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Bridges Or Land Bridges (AREA)
Description
y 8, 1968 J. c ESTES 3,385,069
MOBILE MARINE PLATFORM APPARATUS Filed Oct. 7, 1966 I 2 Sheets-Sheet 1 h. "r; QQWMQMMWWW F7 John C Estes May 28, 1968 J. c. ESTES 3,385,069 A MOBILE MARINE PLATFORM APPARATUS Filed 001;. 7, 1966 2 Sheets-Sheet 2 United States Patent 3,385,069 MOBILE MARINE PLATFORM APPARATUS .l'ohn C. Estes, Beaumont, Tcx., assiguor to Bethlehem Steel Corporation, a corporation of Delaware Filed Oct. 7, 1966, Ser. No. 585,119 2 Claims. (Cl. 61-465) ABSTRACT OF THE DISCLOSURE The hull of a mobile marine platform comprises two or more horizontally spaced, parallel ballastable pontoons aligned parallel to the direction of tow. Bracing elements extend between and are secured to the top surfaces of the pontoons. Two vertical columns are secured to the pontoons and one vertical column to the midpoint of a bracing element. An operating platform is mounted to the columns in vertically adjustable relationship to the hull.
This invention relates broadly to mobile marine platform apparatus. More specifically, this invention relates to mobile marine platform apparatus having a divided hull assembly to reduce towing resistance when the apparatus is being moved from one location to another.
Mobile marine platform apparatus, such as the wellknown offshore drilling barges to be found in great profusion in the Gulf of Mexico, are employed to perform various operations in a marine environment and, as their name implies, are regularly and sometimes quite frequently moved from one location to another location which may be a great distance away. Some of these mobile marine platforms are of the type employing a hull or a mat which is a large pontoon structure usually submerged below the water surface and sometimes actually bottomed on the marine floor when one particular kind of platform is set up on location. This hull or mat can create tremendous resistance to towing when the platform is being moved. This has proven to be quite expensive for several reasons which will be apparent to those familiar with this art.
One of the objects of this invention is to provide improved mobile marine platform apparatus.
Another object of this invention is to provide mobile marine platform apparatus having markedly reduced towing resistance over conventional designs.
Yet other and further objects of this invention will be apparent from the specification, the drawings, and the appended claims.
Broadly speaking, I have discovered that the foregoing objects can be attained by dividing the above mentioned hull or mat into two or more horizontally spaced parallel pontoons aligned parallel to the direction of tow and firmly braced to each other by elements which are secured to the top surfaces of the said pontoons.
Referring now to the drawings, in which like numerals represent like parts in the several views:
FIGURE 1 represents a side view in elevation of mobile marine platform apparatus with the improved hull or mat, the particular apparatus shown being of the type which has the hull or mat bearing on the marine floor when the apparatus is set up on location and ready for operation.
FIGURE 2 represents a partial side view in elevation, showing the mobile marine platform apparatus in floating condition with the hull Or mat at the surface of the water, and ready for towing.
FIGURE 3 represents a partial end view in elevation showing the mobile marine platform apparatus in floating condition, with the hull or mat at the surface of the water, and ready for towing.
3,385,%9 Patented May 28, 19-68 ice FIGURE 4 represents a section taken along the line 4-4 of FIGURE 1, and shows in plan the divided hull or mat.
FIGURE 5 represents a view in plan of the operating platform of the mobile marine platform apparatus, the hull or mat being omitted for purposes of clarity.
Mobile marine platform apparatus 1 is seen, in the particular embodiment shown, as comprising hull assembly 2,columns 3 secured to hull assembly 2 and extending upwardly therefrom, andoperating platform 4 through which saidcolumns 3 extend.
Mobile marine platform apparatus 1 is of the wellknown two boat type and it will be recognized thatoperating platform 4 is actually a portion capable of stably buoyantly supporting the entire apparatus during the time hull assembly 2 is below the surface ofwater 5 and above themarine floor 6. It will also be recognized that hull assembly 2 is a pontoon means capable of stably buoyantly supporting the entire apparatus in floating condition as shown in FIGURES 2 and 3. This particular type of structure, as is well-known, calls for elevating theoperating platform 4 above the surface ofwater 5 to the positiOn shown in FIGURE 1, when setting upon location, and for loweringoperating platform 4 to the surface ofwater 5 pri r to raising hull assembly 2 from themarine floor 6, in preparation for towing to another location. Therefore, jacking means mounted onoperating platform 4 in housings 7 andengaging columns 3 are provided. There are many types of jacking means currently used in this art for the same purpose and, as the particular design of jacking means forms no part of the present invention, the same will not be further described herein.
Hull assembly 2 comprises two ballastable anddeballastable pontoon elements 8, each extending from the bow (right end of hull assembly 2 as viewed in FIGURE 1) to the stern (left end of hull assembly 2 as viewed in FIG- URE 1) of the said hull assembly 2. Pontoonelements 8 have sufiicient buoyancy when deballasted to collectively support the mobile marine platform apparatus 1 with the saidpontoon element 8 having frceboard. Various means for ballasting and deballasting pontoons are well known in this art. As the particular design for ballasting and deballasting means forms no part of the present invention, the same will not be further described herein.Brackets 9 are suitably secured to the upper surfaces of the saidpontoon elements 8, andtubular brace elements 10 are suitably secured to the saidbrackets 9, whereby the saidpontoon elements 8 are rigidly maintained in horizontally spaced parallel relation in a common horizontal plane, to provide a structurally secure hull assembly 2. It will be noted that the saidpontoon elements 8 are aligned parallel to the direction of tow which is toward the right of FIGURES 1, 2 and 4.
Mobile marine platform apparatus 1 has, in the disclosed embodiment, threecolumns 3 interposed between hull assembly 2 andoperating platform 4, saidcolumns 3 being arranged relative to each other in the form of an isosceles triangle as viewed in plan (see FIGURE 4). Two of thesecolumns 3, defining the base of the isosceles triangle, are secured at their lower ends directly to thepontoon elements 8, onecolumn 3 on eachpontoon element 8. Thethird column 3 is secured at its lower end, and hence is supported by, one pair of tubular brace elements 1t) midway between thepontoon elements 8. This arrangement provides a sturdy, stable and convenient form of construction.
The operation of this invention will now be described. It will be assumed that the mobile marine platform apparatus 1 is set up on location as shown in FIGURE 1, withpontoon elements 8 in at least partially ballasted condition and sitting onmarine floor 6.Operating platform 4 is lowered by the herein mentioned jacking means in h usings 7 until it is in floating position on the surface of thewater 5. Thereafter, hull assembly 2 is elevated from themarine floor 6. Preferably, this is done initially by employment of the jacking means acting oncolumns 3 to pull up the hull assembly 2, against the buoyancy ofoperating platform 4 untilbrackets 9 engage the underside ofoperating platform 4. Thereafter,pontoon elements 8 are deballasted to acquire freeboard whereupontubular brace elements 10 are elevated above the surface of thewater 5. Mobile marine platform apparatus 1 may now be towed to a new location. The only resistance during this tow will be that of the relatively small-beam pontoon elements 8. It will be appreciated that this resistance is only a minor fraction of the resistance that would be offered if hull assembly 2 were a unitary pontoon having a beam extending from the outboard or extreme side of onepontoon element 8 to the outboard or extreme side of theother pontoon element 8. It will also be appreciated that the resistance of the hull assembly 2 f the present invention, when afloat and under tow, is only a minor fraction of the resistance that would be obtained iftubular elements 10 oroperating platform 4 had draft while under tOW.
At the new location,pontoon elements 8 are ballasted and consequently will sink in water untiloperating platform 4 becomes afloat and acquires suflicient buoyancy to support mobile marine platform apparatus 1. Thereafter, hull assembly 2 is jacked down tomarine floor 6. Continued operation of the jacking means will then elevatedoperating platform 4 out of thewater 5 to the position shown in FIGURE 1.
Hull assembly 2 may be used with other types of mobile marine platform apparatus not of the two boat type herein shown. Thus, hull assembly 2 may be used with the well-known floater type rigs in whichcolumns 3 are actually buoyant ballastable cylinders. In this type of structure, setting up on location is achieved by submerging hull assembly 2 from a floating condition with freeboard to a submerged position intermediate the surface of thewater 5 andmarine floor 6, stability being provided by the cylinders. When such structures are under tow, hull assembly 2 will be deballasted to acquire freeboard, thereby to reduce towing resistance in the same manner and for the same reasons as in the embodiment of mobile marine platform apparatus herein specifically shown.
Although the specification refers to the mobile marine platform apparatus as being towed from one location to another, it will be understood that the present invention is also intended to be used with self-propelled marine structures.
I claim:
1. Apparatus for marine operations adapted to be positioned at an operating site over water-covered land and further adapted to be moved from one such operating site to another such operating site, said apparatus comprising:
(a) an operating platform,
(b) a hull assembly adapted to buoyantly support said operating platform completely above the surface of the water when said apparatus is being moved between operating sites or selectively to be submerged below the surface of the water when said apparatus is positioned at an operating site, said hull assembly comprising:
two ballastable and deballastable elongated, horizontally spaced parallel ponto n elements, each extending from the bow to the stern of said hull assembly, said pontoon elements being in a common horizontal plane, said pont on elements having sufiicient buoyancy when deballasted to collectively support said apparatus with the said pontoon elements having freeboard,
brace elements extending between said pontoon elements,
fastening means to secure said brace elements to the top surface of said pontoon elements whereby said pontoon elements are rigidly braced to each other,
(c) column means rigidly secured to said hull assembly and extending upwardly therefrom, said column means comprising a column rigidly secured at its lower end to the midpoint of a brace element,
(d) means mounted to said operating platform and engaging said column means above said hull assembly to secure said operating platform to said column means and to vary the vertical distance between said operating platform and said hull assembly,
(e) whereby said hull assembly buoyantly supports said operating platform completely above the surface of the water when said pontoon elements are deballasted to acquire freeboard, the brace elements then being above the surface of the water, and whereby said hull assembly is submerged below the surface of the water when said pontoon elements are ballasted.
2. Apparatus as in claim 1, further comprising:
(g) said fastening means comprising brackets secured to said brace elements and to the top surfaces of said pontoon elements,
(h) said operating platform engaging said brackets when the vertical distance between said operating platform and said hull assembly has been adjusted to a minimum.
References Cited UNITED STATES PATENTS 1,470,459 10/1923 Lonsinger 61-465 X 2,975,747 3/1961 Opie 114-61 3,323,478 6/ 1967 Hunsucker 114-0.5
JACOB SHAPIRO, Primary Examiner.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US585119AUS3385069A (en) | 1966-10-07 | 1966-10-07 | Mobile marine platform apparatus |
| NL6713643ANL6713643A (en) | 1966-10-07 | 1967-10-06 | |
| GB45691/67AGB1197762A (en) | 1966-10-07 | 1967-10-06 | Improvements in or relating to Mobile Marine Platform Apparatus. |
| FR123572AFR1540623A (en) | 1966-10-07 | 1967-10-06 | Advanced training in mobile marine platforms |
| DE19671558962DE1558962C3 (en) | 1966-10-07 | 1967-10-06 | Floating oil rig |
| SE13762/67ASE343354B (en) | 1966-10-07 | 1967-10-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US585119AUS3385069A (en) | 1966-10-07 | 1966-10-07 | Mobile marine platform apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3385069Atrue US3385069A (en) | 1968-05-28 |
Family
ID=24340115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US585119AExpired - LifetimeUS3385069A (en) | 1966-10-07 | 1966-10-07 | Mobile marine platform apparatus |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3385069A (en) |
| GB (1) | GB1197762A (en) |
| NL (1) | NL6713643A (en) |
| SE (1) | SE343354B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3575005A (en)* | 1967-06-29 | 1971-04-13 | Maurice N Sumner | Method and apparatus for offshore operations |
| USRE29167E (en)* | 1968-09-04 | 1977-04-05 | Santa Fe International Corporation | Twin hull variable draft drilling vessel |
| US4181452A (en)* | 1977-05-02 | 1980-01-01 | Entreprise d'Equipments Mecaniques et Hydrauliques E.M.H. | Oil-production platform and method of assembling and installing the same on a sea bed |
| US4380406A (en)* | 1981-04-29 | 1983-04-19 | Shell Oil Company | Jackup platform trailer |
| US5558467A (en)* | 1994-11-08 | 1996-09-24 | Deep Oil Technology, Inc. | Deep water offshore apparatus |
| US5855455A (en)* | 1997-07-09 | 1999-01-05 | Ensco International, Inc. | Submersible and semi-submersible dry lift carrier and method of operation for carrying a drilling rig and platform |
| WO2000024972A1 (en)* | 1998-10-26 | 2000-05-04 | Ove Arup Partnership Limited | Offshore structure |
| US6139224A (en)* | 1997-12-12 | 2000-10-31 | Doris Engineering | Semi-submersible platform for offshore oil field operation and method of installing a platform of this kind |
| US6196767B1 (en)* | 1998-03-11 | 2001-03-06 | Technip Geoproduction | Jack-up platform having a submerged tank and methods for installing and raising the tank |
| US6539888B1 (en)* | 1998-12-23 | 2003-04-01 | Buitendijk Holding B.V. | Working ship |
| US6808337B1 (en)* | 1999-09-28 | 2004-10-26 | A2Sea A/S | Vessel with vertically elevational support legs |
| AU2021202442B2 (en)* | 2021-03-16 | 2023-10-19 | Linch-pin Enterprises Pty Ltd | Gravity-Based Structure For Off-Shore Structures |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2306920B (en) | 1995-11-06 | 2000-01-12 | British Gas Plc | Offshore exploration or production operation |
| NL1004911C2 (en)* | 1996-12-30 | 1998-07-01 | Marine Structure Consul | Lifting platform with storage tank and method for installing such a lifting platform. |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1470459A (en)* | 1922-08-22 | 1923-10-09 | Charles L Lonsinger | Pontoon-supported derrick |
| US2975747A (en)* | 1957-12-19 | 1961-03-21 | Opie John | Pontoon and boat construction |
| US3323478A (en)* | 1965-09-20 | 1967-06-06 | William A Hunsucker | Floating support |
- 1966
- 1966-10-07USUS585119Apatent/US3385069A/ennot_activeExpired - Lifetime
- 1967
- 1967-10-06GBGB45691/67Apatent/GB1197762A/ennot_activeExpired
- 1967-10-06NLNL6713643Apatent/NL6713643A/xxunknown
- 1967-10-09SESE13762/67Apatent/SE343354B/xxunknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1470459A (en)* | 1922-08-22 | 1923-10-09 | Charles L Lonsinger | Pontoon-supported derrick |
| US2975747A (en)* | 1957-12-19 | 1961-03-21 | Opie John | Pontoon and boat construction |
| US3323478A (en)* | 1965-09-20 | 1967-06-06 | William A Hunsucker | Floating support |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3575005A (en)* | 1967-06-29 | 1971-04-13 | Maurice N Sumner | Method and apparatus for offshore operations |
| USRE29167E (en)* | 1968-09-04 | 1977-04-05 | Santa Fe International Corporation | Twin hull variable draft drilling vessel |
| US4181452A (en)* | 1977-05-02 | 1980-01-01 | Entreprise d'Equipments Mecaniques et Hydrauliques E.M.H. | Oil-production platform and method of assembling and installing the same on a sea bed |
| US4380406A (en)* | 1981-04-29 | 1983-04-19 | Shell Oil Company | Jackup platform trailer |
| US5558467A (en)* | 1994-11-08 | 1996-09-24 | Deep Oil Technology, Inc. | Deep water offshore apparatus |
| WO1999002785A1 (en)* | 1997-07-09 | 1999-01-21 | Ensco International Incorporated | Submersible/semi-submersible dry lift carrier and method of operation for carrying a drilling rig and platform |
| US5855455A (en)* | 1997-07-09 | 1999-01-05 | Ensco International, Inc. | Submersible and semi-submersible dry lift carrier and method of operation for carrying a drilling rig and platform |
| US6139224A (en)* | 1997-12-12 | 2000-10-31 | Doris Engineering | Semi-submersible platform for offshore oil field operation and method of installing a platform of this kind |
| US6196767B1 (en)* | 1998-03-11 | 2001-03-06 | Technip Geoproduction | Jack-up platform having a submerged tank and methods for installing and raising the tank |
| WO2000024972A1 (en)* | 1998-10-26 | 2000-05-04 | Ove Arup Partnership Limited | Offshore structure |
| US6539888B1 (en)* | 1998-12-23 | 2003-04-01 | Buitendijk Holding B.V. | Working ship |
| US6808337B1 (en)* | 1999-09-28 | 2004-10-26 | A2Sea A/S | Vessel with vertically elevational support legs |
| AU2021202442B2 (en)* | 2021-03-16 | 2023-10-19 | Linch-pin Enterprises Pty Ltd | Gravity-Based Structure For Off-Shore Structures |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1197762A (en) | 1970-07-08 |
| DE1558962B2 (en) | 1976-03-25 |
| DE1558962A1 (en) | 1970-04-23 |
| NL6713643A (en) | 1968-04-08 |
| SE343354B (en) | 1972-03-06 |
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