US20090200036A1 - Method for Subsea Hydrocarbon Recovery - Google Patents

Method for Subsea Hydrocarbon Recovery Download PDF

Info

Publication number
US20090200036A1
US20090200036A1 US12/225,306 US22530606A US2009200036A1 US 20090200036 A1 US20090200036 A1 US 20090200036A1 US 22530606 A US22530606 A US 22530606A US 2009200036 A1 US2009200036 A1 US 2009200036A1
Authority
US
United States
Prior art keywords
base
pipeline
assembly
drilling
connecting element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/225,306
Inventor
Joop Roodenburg
Diederick Bernardus Wijning
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.)
ltrec BV
Huisman Equipment BV
Original Assignee
ltrec BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ltrec BV filed Critical ltrec BV
Assigned to ITREC B.V. reassignment ITREC B.V. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ROODENBURG, JOOP, WIJNING, DIEDERICK BERNARDUS
Publication of US20090200036A1 publication Critical patent/US20090200036A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
    • E21B43/013—Connecting a production flow line to an underwater well head
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/08—Underwater guide bases, e.g. drilling templates; Levelling thereof
    • 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
    • B63B35/03—Pipe-laying vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
    • F16L1/12—Laying or reclaiming pipes on or under water
    • F16L1/20—Accessories therefor, e.g. floats, weights
    • F16L1/202—Accessories therefor, e.g. floats, weights fixed on or to vessels
    • F16L1/203—Accessories therefor, e.g. floats, weights fixed on or to vessels the pipes being wound spirally prior to laying

Definitions

  • the present invention relates to a method for subsea hydrocarbon recovery, in which a wellbore is drilled using a base installed on the seabed, said base comprising a drilling guide, in which method at least one pipeline is to be connected to a network for storage and/or processing operations.
  • a method conventionally comprises the steps of:
  • the aim of the present invention is to provide an improved method for subsea hydrocarbon recovery. With hydrocarbon recovery all types of recovery including oil and gas recovery are intended. This is achieved by a method according to claim 1 , characterized by the following steps:
  • One of the advantages of a pre-assembled base and one or more pipelines is that the one or more pipelines are laid at an earlier stage in the operation for subsea hydrocarbon recovery, enabling an earlier connection of the pipeline with the network for storage and/or processing operations.
  • Another advantage is that the placing of the connecting element is facilitated considerably, since the orientation between the pipeline end and the drilling guide for the wellbore is fixed. Normally this is done by specially manufactured jumpers, the dimension of which has to be measured after the pipeline has been laid.
  • no additional PipeLine End Terminal (PLET) is required when lowering the pipeline, since the base now acts as an end terminal.
  • the base is lowered first with two or more pipelines connected to it.
  • the base of a second pre-assembly is connected to the pipeline of the first pre-assembly.
  • a first pipeline is lowered, which can be assembled with a first base forming a first pre-assembly (but can also be connected to a network), and subsequently connect a second base to this launched first pipeline, to which yet another second pipeline is connected.
  • an anchor is lowered and/or positioned on the seabed prior to the pre-assembly to assist the lowering of the assembly.
  • the weight of the base can be too little to properly and accurately lower the pipeline. Then, an anchor can assist in lowering and accurately positioning the base and the pipeline.
  • the base contains a single drilling guide. It is also possible to provide multiple drilling guides in a single base, e.g. to speed up oil recovery.
  • the method for subsea oil or gas recovery comprises the step of positioning a christmas tree above the wellbore.
  • possibly wellhead equipment is placed on top of the wellbore, and possibly well completion is performed e.g. by providing conductor pipe or casing in the wellbore.
  • well completion is performed and wellhead equipment is placed after drilling the wellhole.
  • a connecting element can subsequently be placed between the wellhead equipment and the pipeline.
  • a connecting element for example a jumper can be used.
  • the wellhead equipment and the connecting element are integrated in a christmas tree.
  • a christmas tree comprises a set of valves, spools and fittings and is conventionally connected to the top of a well to direct and control the flow of fluids from the well.
  • the christmas tree is placed on the seabed prior to drilling.
  • blow-out preventer is positioned as is common in subsea oil or gas recovery operations requiring access to the wellbore in a later stage, such as workover operations.
  • FIGS. 1 a - c show in perspective part of a vessel suitable for performing the method according to the invention
  • FIGS. 2 a - 2 c show in perspective view various steps of a method for subsea oil or gas recovery according to the invention
  • FIG. 3 shows in perspective view a blow-out preventer positioned on a pre-assembly according to the invention.
  • FIGS. 1 a - 1 c part of a vessel 1 is shown, suitable for performing the method according to the present invention.
  • the vessel 1 comprises on deck 3 a reel 2 for storage of pipeline (not shown).
  • a crane 4 is arranged, which can be used to lower an anchor (not shown), but can also assist in lowering accessories such as a base, possibly pre-assembled with a pipeline according to the invention.
  • Tower 5 is arranged at the stern 15 of the vessel 1 .
  • Tower 5 is extending upwards from the deck and can be tilted.
  • the tower is moveable across the deck 3 parallel to the stern 15 of the vessel 1 across rails 5 c .
  • the tower is moveable for unwinding the pipeline more easily.
  • Tower 5 is composed of an A-frame 5 a in which an assembly 5 b with a pipeline guide, in the shown embodiment aligner 6 for a pipeline (only shown partially in FIG. 1 b ) is moveably arranged.
  • the arrangement of tower 5 and aligner 6 shown in FIG. 1 a ensures easy laying of pipeline, tower 5 and aligner 6 acting as a ramp across which the pipeline enters the water.
  • Assembly 5 b with aligner 6 can be moved or rotated backwards towards the deck 3 of the vessel as is shown in FIGS. 1 b and 1 c .
  • By retracting the assembly 5 b with aligner 6 space is created in the tower 5 a to introduce an accessory, such as a pre-assembled base and pipeline.
  • Tower 5 further comprises a working platform 7 which can be entered e.g. by welding engineers to weld a pipeline to a base in order to create a pre-assembled base and pipeline according to the invention.
  • the working platform 7 can also be used for other operations such as inspection.
  • a straightener 8 and a pipe clamp 9 are arranged in the assembly 5 b arranged in the A-frame 5 a of the tower 5 below the aligner 6 .
  • a working platform 10 and a pipe clamp 11 are mounted to the A-frame 5 a of tower 5 .
  • Working platform 10 can be retracted away from the firing line to enable the passage of accessories such as base 12 shown in FIG. 1 c by opening as is shown in FIG. 1 b or alternatively for example by skidding or rotating.
  • Working platform 10 can for example be used to connect an accessory to a launched pipeline, clamped in pipe clamp 11 .
  • pipe parts have been shown in pipe clamps 9 and 11 , while no other part of the pipeline is shown.
  • FIG. 1 c a base 12 is shown.
  • the shown base 12 is not yet assembled with a pipeline.
  • FIGS. 2 a - 2 d various steps of a method for subsea oil or gas recovery according to the invention are illustrated.
  • an assembly 20 according to the invention is shown launched on the seabed 21 .
  • the assembly 20 is pre-assembled from a pipeline 20 a and a base 20 b .
  • Base 20 b comprises a drilling guide 20 c to enable drilling of a wellbore and a pipeline end terminal 20 d which can be connected to the wellbore via a connecting element.
  • Base 20 b further comprises a hook member 20 e that can be used to connect base 20 b during launch e.g. via a cable to an anchor to assist in lowering and/positioning the assembly 20 .
  • Positioning elements are arranged on the assembly 20 to enable an easy and precise connection between the assembly 20 and connection element 22 .
  • the connection elements are elements according to the API Standard Guide Post dimensions.
  • columns 20 f extending from base 20 b are arranged as positioning elements to enable an easy and precise connection between the assembly 20 and connection element 22 , in this case christmas tree 22 as shown in FIG. 2 b .
  • Christmas tree 22 comprises recesses 22 a complementary to columns 20 f on assembly 20 to enable interconnection.
  • Christmas tree 22 further comprises connecting members 22 c and 22 b to form a interconnection between the wellbore at the seabed surface in drilling guide 20 c and the pipeline end terminal 20 d.
  • FIG. 2 c the christmas tree 22 is positioned on base and pipeline assembly 20 .
  • FIG. 2 d shows a blow-out preventer 23 positioned on pre-assembly 20 on the seabed 21 .

Abstract

The invention relates to a method for subsea hydrocarbon recovery in which a wellbore is drilled using a base installed on the seabed, said base comprising a drilling guide, in which at least one pipeline is to be connected to a network for storage and/or processing operations. The method according to the invention includes the following steps:
    • preparing a pre-assembly of a base and one or more pipelines,
    • lowering and positioning the pre-assembly on the seabed,
    • drilling the wellbore through the base,
    • placing a connecting element between the wellbore and the pipeline.

Description

  • The present invention relates to a method for subsea hydrocarbon recovery, in which a wellbore is drilled using a base installed on the seabed, said base comprising a drilling guide, in which method at least one pipeline is to be connected to a network for storage and/or processing operations. Such a method conventionally comprises the steps of:
      • lowering and positioning a base on the seabed,
      • drilling a wellbore through the drilling guide of the base,
      • lowering and positioning the pipeline on the seabed, to which pipeline an end termination is connected,
      • measuring the exact distance between the end termination of the pipeline and the base,
      • preparing a connecting element made to size
      • placing the connecting element manufactured to size between the wellbore and the pipeline.
  • Such a method is well-known and commonly applied in the art. A disadvantage of the known method is that the positioning of the pipeline and the placing of the connecting element are precise and therefore time-consuming and expensive operations.
  • The aim of the present invention is to provide an improved method for subsea hydrocarbon recovery. With hydrocarbon recovery all types of recovery including oil and gas recovery are intended. This is achieved by a method according to claim 1, characterized by the following steps:
      • preparing a pre-assembly of a base and one or more pipelines,
      • lowering and positioning the pre-assembly on the seabed,
      • drilling the wellbore through the drilling guide of the base,
      • placing a connecting element between the wellbore and the pipeline.
  • One of the advantages of a pre-assembled base and one or more pipelines is that the one or more pipelines are laid at an earlier stage in the operation for subsea hydrocarbon recovery, enabling an earlier connection of the pipeline with the network for storage and/or processing operations. Another advantage is that the placing of the connecting element is facilitated considerably, since the orientation between the pipeline end and the drilling guide for the wellbore is fixed. Normally this is done by specially manufactured jumpers, the dimension of which has to be measured after the pipeline has been laid. Yet another advantage is that no additional PipeLine End Terminal (PLET) is required when lowering the pipeline, since the base now acts as an end terminal.
  • It is both possible to connect one or multiple pipelines to a single base, which will for example be dependent on the product(s) flowing through the pipeline(s). In a possible embodiment, the base is lowered first with two or more pipelines connected to it.
  • In a preferred embodiment, after lowering and positioning a first pre-assembly on the seabed, the base of a second pre-assembly is connected to the pipeline of the first pre-assembly. Possibly, initially a first pipeline is lowered, which can be assembled with a first base forming a first pre-assembly (but can also be connected to a network), and subsequently connect a second base to this launched first pipeline, to which yet another second pipeline is connected. This way it is possible to install a series of bases, interconnected with pipelines, which are also connected to a network for storage and/or processing operations.
  • In a preferred embodiment of the method according to the invention, an anchor is lowered and/or positioned on the seabed prior to the pre-assembly to assist the lowering of the assembly. The weight of the base can be too little to properly and accurately lower the pipeline. Then, an anchor can assist in lowering and accurately positioning the base and the pipeline.
  • In a preferred embodiment, the base contains a single drilling guide. It is also possible to provide multiple drilling guides in a single base, e.g. to speed up oil recovery.
  • Preferably, the method for subsea oil or gas recovery according to the invention comprises the step of positioning a christmas tree above the wellbore. After drilling the wellbore, possibly wellhead equipment is placed on top of the wellbore, and possibly well completion is performed e.g. by providing conductor pipe or casing in the wellbore. In a possible embodiment, well completion is performed and wellhead equipment is placed after drilling the wellhole. A connecting element can subsequently be placed between the wellhead equipment and the pipeline. As a connecting element, for example a jumper can be used.
  • In another preferred embodiment, the wellhead equipment and the connecting element are integrated in a christmas tree. Such a christmas tree comprises a set of valves, spools and fittings and is conventionally connected to the top of a well to direct and control the flow of fluids from the well. Possibly, the christmas tree is placed on the seabed prior to drilling. Analogously, it is possible to place the connecting element on the seabed prior to drilling.
  • Possibly, on the christmas tree, a blow-out preventer is positioned as is common in subsea oil or gas recovery operations requiring access to the wellbore in a later stage, such as workover operations.
  • The invention will further be explained with respect to the accompanying drawings, in which:
  • FIGS. 1 a-c show in perspective part of a vessel suitable for performing the method according to the invention,
  • FIGS. 2 a-2 c show in perspective view various steps of a method for subsea oil or gas recovery according to the invention,
  • FIG. 3 shows in perspective view a blow-out preventer positioned on a pre-assembly according to the invention.
    •
  • In FIGS. 1 a-1 c part of a vessel 1 is shown, suitable for performing the method according to the present invention. The vessel 1 comprises on deck 3 a reel 2 for storage of pipeline (not shown). On deck 3 furthermore a crane 4 is arranged, which can be used to lower an anchor (not shown), but can also assist in lowering accessories such as a base, possibly pre-assembled with a pipeline according to the invention.
  • At the stern 15 of the vessel 1 a tower 5 is arranged. Tower 5 is extending upwards from the deck and can be tilted. The tower is moveable across the deck 3 parallel to the stern 15 of the vessel 1 across rails 5 c. The tower is moveable for unwinding the pipeline more easily. Tower 5 is composed of an A-frame 5 a in which an assembly 5 b with a pipeline guide, in the shown embodiment aligner 6 for a pipeline (only shown partially in FIG. 1 b) is moveably arranged. The arrangement of tower 5 and aligner 6 shown in FIG. 1 a ensures easy laying of pipeline, tower 5 and aligner 6 acting as a ramp across which the pipeline enters the water. Assembly 5 b with aligner 6 can be moved or rotated backwards towards the deck 3 of the vessel as is shown in FIGS. 1 b and 1 c. By retracting the assembly 5 b with aligner 6, space is created in the tower 5 a to introduce an accessory, such as a pre-assembled base and pipeline.
  • Tower 5 further comprises a working platform 7 which can be entered e.g. by welding engineers to weld a pipeline to a base in order to create a pre-assembled base and pipeline according to the invention. Of course, the working platform 7 can also be used for other operations such as inspection. In the assembly 5 b arranged in the A-frame 5 a of the tower 5 below the aligner 6 a straightener 8 and a pipe clamp 9 are arranged. In the embodiment shown, a working platform 10 and a pipe clamp 11 are mounted to the A-frame 5 a of tower 5. Working platform 10 can be retracted away from the firing line to enable the passage of accessories such as base 12 shown in FIG. 1 c by opening as is shown in FIG. 1 b or alternatively for example by skidding or rotating. Working platform 10 can for example be used to connect an accessory to a launched pipeline, clamped in pipe clamp 11. For reasons of clarity, pipe parts have been shown in pipe clamps 9 and 11, while no other part of the pipeline is shown.
  • Although it should be understood that tower 5 is appropriate for lowering any accessory, in FIG. 1 c a base 12 is shown. The shown base 12 is not yet assembled with a pipeline.
  • In FIGS. 2 a-2 d various steps of a method for subsea oil or gas recovery according to the invention are illustrated. In FIG. 2 a an assembly 20 according to the invention is shown launched on the seabed 21. The assembly 20 is pre-assembled from a pipeline 20 a and a base 20 b. Base 20 b comprises a drilling guide 20 c to enable drilling of a wellbore and a pipeline end terminal 20 d which can be connected to the wellbore via a connecting element. Base 20 b further comprises a hook member 20 e that can be used to connect base 20 b during launch e.g. via a cable to an anchor to assist in lowering and/positioning the assembly 20.
  • Positioning elements are arranged on the assembly 20 to enable an easy and precise connection between the assembly 20 and connection element 22. Preferably the connection elements are elements according to the API Standard Guide Post dimensions. In the embodiment shown in FIG. 2 a, columns 20 f extending from base 20 b are arranged as positioning elements to enable an easy and precise connection between the assembly 20 and connection element 22, in this case christmas tree 22 as shown in FIG. 2 b. Christmas tree 22 comprises recesses 22 a complementary to columns 20 f on assembly 20 to enable interconnection. Christmas tree 22 further comprises connecting members 22 c and 22 b to form a interconnection between the wellbore at the seabed surface in drilling guide 20 c and the pipeline end terminal 20 d.
  • In FIG. 2 c the christmas tree 22 is positioned on base and pipeline assembly 20.
  • FIG. 2 d shows a blow-out preventer 23 positioned on pre-assembly 20 on the seabed 21.

Claims (18)

1. Method for subsea hydrocarbon recovery in which a wellbore is drilled using a base installed on the seabed, said base comprising a drilling guide, in which method at least one pipeline is to be connected to a network for storage and/or processing operations, characterized by the following steps:
preparing a pre-assembly of a base and one or more pipelines,
lowering and positioning the pre-assembly on the seabed,
drilling the wellbore through the drilling guide of the base,
placing a connecting element between the wellbore and the pipeline.
2. Method according to claim 1, in which an anchor is lowered prior to the pre-assembly to assist the lowering and/or positioning of the pre-assembly.
3. Method according to claim 1, in which the base contains a single drilling guide.
4. Method according to claim 1, wherein the connecting element is placed on the seabed prior to drilling.
5. Method according to claim 1, wherein the connecting element is a christmas tree.
6. Method according to claim 1, in which two or more pipelines connected to a single base are lowered simultaneously from two or more reels.
7. Method according to claim 1, in which after lowering and positioning a first pre-assembly on the seabed, the base of a second pre-assembly is connected to the pipeline of the first pre-assembly.
8. Pre-assembled base comprising a drilling guide for drilling a wellbore and one or more pipelines to be connected to a network for storage and/or processing operations for subsea hydrocarbon recovery.
9. Method according to claim 2, in which the base contains a single drilling guide.
10. Method according to claim 2, wherein the connecting element is placed on the seabed prior to drilling.
11. Method according to claim 3, wherein the connecting element is placed on the seabed prior to drilling.
12. Method according to claim 2, wherein the connecting element is a christmas tree.
13. Method according to claim 3, wherein the connecting element is a christmas tree.
14. Method according to claim 4, wherein the connecting element is a christmas tree.
15. Method according to claim 2, in which two or more pipelines connected to a single base are lowered simultaneously from two or more reels.
16. Method according to claim 3, in which two or more pipelines connected to a single base are lowered simultaneously from two or more reels.
17. Method according to claim 4, in which two or more pipelines connected to a single base are lowered simultaneously from two or more reels.
18. Method according to claim 5 in which two or more pipelines connected to a single base are lowered simultaneously from two or more reels.
US12/225,306 2006-03-22 2006-03-22 Method for Subsea Hydrocarbon Recovery Abandoned US20090200036A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/NL2006/000152 WO2007108672A1 (en) 2006-03-22 2006-03-22 Pre-assembly of a subsea base and pipeline

Publications (1)

Publication Number Publication Date
US20090200036A1 true US20090200036A1 (en) 2009-08-13

Family

ID=37387251

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/225,306 Abandoned US20090200036A1 (en) 2006-03-22 2006-03-22 Method for Subsea Hydrocarbon Recovery

Country Status (6)

Country Link
US (1) US20090200036A1 (en)
EP (1) EP2004954B1 (en)
AT (1) ATE519016T1 (en)
BR (1) BRPI0621517A2 (en)
NO (1) NO340881B1 (en)
WO (1) WO2007108672A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130287498A1 (en) * 2010-12-28 2013-10-31 Itrec B.V. Marine pipeline installation system and methods

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2010511C2 (en) 2013-03-22 2014-09-24 Itrec Bv Marine pipeline installation vessel and method.

Citations (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3618661A (en) * 1969-08-15 1971-11-09 Shell Oil Co Apparatus and method for drilling and producing multiple underwater wells
US3698348A (en) * 1970-09-21 1972-10-17 Subsea Equipment Ass Ltd Method and apparatus for subsurface towing of flowlines
US3877520A (en) * 1973-08-17 1975-04-15 Paul S Putnam Subsea completion and rework system for deep water oil wells
US3934647A (en) * 1974-06-21 1976-01-27 Dolphin International, Inc. Pipe laying system
US3943725A (en) * 1973-09-03 1976-03-16 Subsea Equipment Associates, Ltd. Apparatus for guiding a load between a surface apparatus and a submerged base platform
US4075862A (en) * 1976-09-15 1978-02-28 Fmc Corporation Method and apparatus for installing underwater flowlines
US4086778A (en) * 1977-01-06 1978-05-02 Mobil Oil Corporation Subsea connection unit
US4120362A (en) * 1976-11-22 1978-10-17 Societe Nationale Elf Aquitaine (Production) Subsea station
US4147221A (en) * 1976-10-15 1979-04-03 Exxon Production Research Company Riser set-aside system
US4161367A (en) * 1978-02-15 1979-07-17 Fmc Corporation Method and apparatus for completing diverless subsea flowline connections
US4175620A (en) * 1977-12-06 1979-11-27 Brown & Root, Inc. Methods and apparatus for anchoring offshore pipeline
US4417624A (en) * 1981-01-15 1983-11-29 Conoco Inc. Method and apparatus for controlling the flow of fluids from an open well bore
US4544036A (en) * 1984-02-17 1985-10-01 Mobil Oil Corporation Vertical flowline connector
US4611661A (en) * 1985-04-15 1986-09-16 Vetco Offshore Industries, Inc. Retrievable exploration guide base/completion guide base system
US4625806A (en) * 1979-09-26 1986-12-02 Chevron Research Company Subsea drilling and production system for use at a multiwell site
US4673313A (en) * 1985-04-11 1987-06-16 Mobil Oil Corporation Marine production riser and method for installing same
US4695190A (en) * 1986-03-04 1987-09-22 Smith International, Inc. Pressure-balanced stab connection
US4784523A (en) * 1987-03-26 1988-11-15 Exxon Production Research Company Method and apparatus for remotely orienting a flowline for connection to a subsea structure
US4832124A (en) * 1985-01-03 1989-05-23 Texaco Ltd Subsea well head template
US5005650A (en) * 1989-02-23 1991-04-09 The British Petroleum Company P.L.C. Multi-purpose well head equipment
US5775846A (en) * 1994-12-20 1998-07-07 Seahorse Equipment Corporation Offshore production platform and method of installing the same
US5823712A (en) * 1995-03-10 1998-10-20 Allseas Group S.A. Method and installation for laying a pipeline on a surface located under water
US20030051878A1 (en) * 2001-08-20 2003-03-20 Deberry Blake T. Horizontal spool tree wellhead system and method
US20040200614A1 (en) * 2003-04-09 2004-10-14 Cooper Cameron Corporation Drill-through spool body sleeve assembly
US6832874B2 (en) * 2000-08-18 2004-12-21 Alpha Thames Ltd. Modular seabed processing system
US6871609B2 (en) * 2002-08-30 2005-03-29 Itrec B.V. Multipurpose tower for monohull
US20050109537A1 (en) * 2002-04-30 2005-05-26 Ayling Laurence J. Drilling rig
US6901998B1 (en) * 2003-03-17 2005-06-07 Itrec B.V. Method for using a multipurpose system
US7296629B2 (en) * 2003-10-20 2007-11-20 Fmc Technologies, Inc. Subsea completion system, and methods of using same
US7422063B2 (en) * 2006-02-13 2008-09-09 Henry B Crichlow Hydrocarbon recovery from subterranean formations
US7461699B2 (en) * 2003-10-22 2008-12-09 Baker Hughes Incorporated Method for providing a temporary barrier in a flow pathway
US20090008099A1 (en) * 2005-02-21 2009-01-08 Arvid Iversen Centralization and Running Tool and Method
US7516795B2 (en) * 2004-08-17 2009-04-14 Petroleo Brasileiro S.A. - Petrobras Subsea petroleum production system method of installation and use of the same
US20090255686A1 (en) * 2003-10-22 2009-10-15 Baker Hughes Incorporated Method for providing a temporary barrier in a flow pathway
US7703534B2 (en) * 2006-10-19 2010-04-27 Adel Sheshtawy Underwater seafloor drilling rig
US20110042094A1 (en) * 2008-04-24 2011-02-24 Saipem S.A. Bottom-to-surface connection installation of a rigid pipe with a flexible pipe having positive buoyancy

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1201471A (en) * 1966-10-10 1970-08-05 Cameron Iron Works Inc Connector for underwater pipelines
NO307210B1 (en) 1996-11-27 2000-02-28 Norske Stats Oljeselskap Oil or gas extraction system

Patent Citations (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3618661A (en) * 1969-08-15 1971-11-09 Shell Oil Co Apparatus and method for drilling and producing multiple underwater wells
US3698348A (en) * 1970-09-21 1972-10-17 Subsea Equipment Ass Ltd Method and apparatus for subsurface towing of flowlines
US3877520A (en) * 1973-08-17 1975-04-15 Paul S Putnam Subsea completion and rework system for deep water oil wells
US3943725A (en) * 1973-09-03 1976-03-16 Subsea Equipment Associates, Ltd. Apparatus for guiding a load between a surface apparatus and a submerged base platform
US3934647A (en) * 1974-06-21 1976-01-27 Dolphin International, Inc. Pipe laying system
US4075862A (en) * 1976-09-15 1978-02-28 Fmc Corporation Method and apparatus for installing underwater flowlines
US4147221A (en) * 1976-10-15 1979-04-03 Exxon Production Research Company Riser set-aside system
US4120362A (en) * 1976-11-22 1978-10-17 Societe Nationale Elf Aquitaine (Production) Subsea station
US4086778A (en) * 1977-01-06 1978-05-02 Mobil Oil Corporation Subsea connection unit
US4175620A (en) * 1977-12-06 1979-11-27 Brown & Root, Inc. Methods and apparatus for anchoring offshore pipeline
US4161367A (en) * 1978-02-15 1979-07-17 Fmc Corporation Method and apparatus for completing diverless subsea flowline connections
US4625806A (en) * 1979-09-26 1986-12-02 Chevron Research Company Subsea drilling and production system for use at a multiwell site
US4417624A (en) * 1981-01-15 1983-11-29 Conoco Inc. Method and apparatus for controlling the flow of fluids from an open well bore
US4544036A (en) * 1984-02-17 1985-10-01 Mobil Oil Corporation Vertical flowline connector
US4832124A (en) * 1985-01-03 1989-05-23 Texaco Ltd Subsea well head template
US4673313A (en) * 1985-04-11 1987-06-16 Mobil Oil Corporation Marine production riser and method for installing same
US4611661A (en) * 1985-04-15 1986-09-16 Vetco Offshore Industries, Inc. Retrievable exploration guide base/completion guide base system
US4695190A (en) * 1986-03-04 1987-09-22 Smith International, Inc. Pressure-balanced stab connection
US4784523A (en) * 1987-03-26 1988-11-15 Exxon Production Research Company Method and apparatus for remotely orienting a flowline for connection to a subsea structure
US5005650A (en) * 1989-02-23 1991-04-09 The British Petroleum Company P.L.C. Multi-purpose well head equipment
US5775846A (en) * 1994-12-20 1998-07-07 Seahorse Equipment Corporation Offshore production platform and method of installing the same
US5823712A (en) * 1995-03-10 1998-10-20 Allseas Group S.A. Method and installation for laying a pipeline on a surface located under water
US6832874B2 (en) * 2000-08-18 2004-12-21 Alpha Thames Ltd. Modular seabed processing system
US20030051878A1 (en) * 2001-08-20 2003-03-20 Deberry Blake T. Horizontal spool tree wellhead system and method
US20050109537A1 (en) * 2002-04-30 2005-05-26 Ayling Laurence J. Drilling rig
US6871609B2 (en) * 2002-08-30 2005-03-29 Itrec B.V. Multipurpose tower for monohull
US6901998B1 (en) * 2003-03-17 2005-06-07 Itrec B.V. Method for using a multipurpose system
US20040200614A1 (en) * 2003-04-09 2004-10-14 Cooper Cameron Corporation Drill-through spool body sleeve assembly
US7296629B2 (en) * 2003-10-20 2007-11-20 Fmc Technologies, Inc. Subsea completion system, and methods of using same
US7461699B2 (en) * 2003-10-22 2008-12-09 Baker Hughes Incorporated Method for providing a temporary barrier in a flow pathway
US20090255686A1 (en) * 2003-10-22 2009-10-15 Baker Hughes Incorporated Method for providing a temporary barrier in a flow pathway
US7516795B2 (en) * 2004-08-17 2009-04-14 Petroleo Brasileiro S.A. - Petrobras Subsea petroleum production system method of installation and use of the same
US20090008099A1 (en) * 2005-02-21 2009-01-08 Arvid Iversen Centralization and Running Tool and Method
US7422063B2 (en) * 2006-02-13 2008-09-09 Henry B Crichlow Hydrocarbon recovery from subterranean formations
US7703534B2 (en) * 2006-10-19 2010-04-27 Adel Sheshtawy Underwater seafloor drilling rig
US20110042094A1 (en) * 2008-04-24 2011-02-24 Saipem S.A. Bottom-to-surface connection installation of a rigid pipe with a flexible pipe having positive buoyancy

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130287498A1 (en) * 2010-12-28 2013-10-31 Itrec B.V. Marine pipeline installation system and methods
US8905676B2 (en) * 2010-12-28 2014-12-09 Itrec B.V. Marine pipeline installation system and methods

Also Published As

Publication number Publication date
NO20083984L (en) 2008-12-22
ATE519016T1 (en) 2011-08-15
WO2007108672A1 (en) 2007-09-27
EP2004954B1 (en) 2011-08-03
EP2004954A1 (en) 2008-12-24
NO340881B1 (en) 2017-07-03
BRPI0621517A2 (en) 2012-09-11

Similar Documents

Publication Publication Date Title
US11781401B2 (en) Tie-in of subsea pipeline
US7044228B2 (en) Flowline jumper for subsea well
US11142984B2 (en) Apparatus, systems and method for oil and gas operations
US7975770B2 (en) Dual-BOP and common riser system
US4175620A (en) Methods and apparatus for anchoring offshore pipeline
AU2018388843B2 (en) Interconnection of subsea pipelines and structures
EP2004954B1 (en) Pre-assembly of a subsea base and pipeline
WO2021001056A1 (en) Vertical branch inline manifold system
Moreira et al. Further advances in deepwater flowline connection technology
GB2614726A (en) A method for connecting a subsea well to a subsea pipeline
White et al. Foinaven subsea system connection
NO20211206A1 (en) Pipeline deployment and tie-in method
GB2594010A (en) Tie-in of subsea pipeline
Clegg et al. Tahoe Subsea Completion A Successful Application of Existing and New Technologies

Legal Events

Date Code Title Description
AS Assignment

Owner name: ITREC B.V., NETHERLANDS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ROODENBURG, JOOP;WIJNING, DIEDERICK BERNARDUS;REEL/FRAME:022346/0378

Effective date: 20090220

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION