Submersible production storage barge and method for transporting and installing a jack-up rig in a body of water

• US 4,907,912 A
• Filed: 10/05/1988
• Issued: 03/13/1990
• Est. Priority Date: 10/05/1988
• Status: Expired due to Fees

• Current Assignee: JFP Offshore, Inc.
• Original Assignee: JFP Energy, Inc.
• Inventors: Smith, Marvin L.
• Primary Examiner(s): Taylor, Dennis L.
• Assistant Examiner(s): MCBEE, J
• Application Number:
  US07/253,767
• Time in Patent Office: 524 Days
• Field of Search: 405/210, 405/207, 405/208, 405/217, 405/200, 405/196, 405/203, 405/204, 405/205, 405/227, 141/82
• US Class Current: 405/208
• CPC Class Codes: E02B 17/021 with relative movement between supporting construction and platform
• CPC Class Codes: E02B 2017/006 with lattice style supporting legs
• CPC Class Codes: E02B 2017/0082 Spudcans, skirts or extended feet
• CPC Class Codes: E02B 2017/0086 Large footings connecting several legs or serving as a reservoir for the storage of oil or gas

Abstract

A submersible production storage barge and method for transporting and installing a jack-up rig in a body of water has the submersible production storage barge releasably secured to a jack-up rig while the jack-up rig and submersible production storage barge are towed as a unit to the desired offshore location.

Claims

1. A method for transporting and installing, in a body of water, a jack-up rig, having a hull and a plurality of jack-up legs, comprising the steps of:

(a) associating a submersible production storage barge, having an upper wall surface, with the hull of the jack-up rig;

(b) passing the plurality of jack-up legs through openings formed in the submersible production storage barge and releasably securing the submersible production storage barge to the jack-up rig;

(c) moving the jack-up rig and submersible production storage barge to a desired site in the body of water, the jack-up rig being disposed above the upper wall surface of the submersible production storage barge while the jack-up rig and the submersible production storage barge are being moved; and

(d) lowering the plurality of jack-up legs and the submersible production storage barge until they rest upon a surface below the body of water.

2. The method of claim 1, wherein while the jack-up rig and submersible production storage barge are being moved, the hull of the jack-up rig is disposed above the body of water and rests upon the upper wall surface of the submersible production storage barge, and flotation of the jack-up rig is provided by the submersible production storage barge.

3. The method of claim 1, including the steps of providing ballast to the submersible production storage barge to make it slightly negatively buoyant prior to lowering the plurality of jack-up legs;

and supporting the submersible production storage barge by the plurality of jack-up legs after the submersible production storage barge has become slightly negatively buoyant.

4. The method of claim 3, including the steps of further lowering the plurality of jack-up legs and slightly negatively buoyant submersible production storage barge to a location intermediate an upper surface of the body of water and the surface below the body of water;

and moving the jack-up rig and submersible production storage barge, prior to lowering the plurality of jack-up legs and submersible production storage barge until they rest upon the surface below the body of water.

5. The method of claim 1, including the step of flooding at least a portion of the submersible production storage barge after it has been lowered to rest upon the surface below the body of water.

6. The method of claim 1 including the step of storing hydrocarbon fluids within the submersible production storage barge, after the submersible production storage barge rests upon the surface below the body of water.

7. The method of claim 6, including the step of associating at least one fluid transfer device with the submersible production storage barge and transferring the stored hydrocarbon fluids from the submersible production storage barge to a tanker by use of the fluid transfer device.

8. A submersible production storage barge, adapted to be transported and installed in a body of water with a jack-up rig having a hull and a plurality of jack-up legs comprising:

(a) a plurality of wall members defining at least one enclosed cavity for the storage of hydrocarbon fluids, the plurality of wall members forming an upper wall surface, a lower wall surface, and at least one side wall surface; and

(b) means for releasably secured the plurality of wall members to the jack-up rig while the jack-up rig is being transported to a site in the body of water, whereby a jack-up rig and plurality of walls members may be transported together to the site int he body of water, the releasable securing means including a plurality of openings formed in the upper and lower wall surfaces through while the plurality of jack-up legs pass through, where the plurality of wall members may be lowered to rest upon a surface below the body of water.

9. The submersible production storage barge of claim 8, including means for heating hydrocarbon fluids to be contained in the at least one cavity.

10. The submersible production storage barge of claim 9, wherein the heating means includes a plurality of pipes disposed within the at least one cavity, the plurality of pipes adapted to contain a high temperature fluid.

11. The submersible production storage barge of claim 8, wherein the releasable securing means further includes at least one stop member associated with the at least one opening, and is adapted to abut a portion of the at least one jack-up leg.

12. The submersible production storage barge of claim 11, including guide members associated with the at least one opening and adapted to guide the at least one jack-up leg through the at least one opening as the plurality of wall members move with respect to the at least one jack-up leg.

13. The submersible production storage barge of claim 8, wherein a single wall member is disposed between the at least one enclosed cavity and the body of water.

14. The submersible production storage barge of claim 8, wherein two wall members, spaced apart from one another to define an enclosed space, are disposed between the at least one enclosed cavity and the body of water.

15. The submersible production storage barge of claim 14, wherein insulation is disposed in the enclosed space between the two wall members.

16. The submersible production storage barge of claim 8, wherein the size of the at least one enclosed cavity defined by the plurality of wall members has enough buoyancy to provide flotation of the jack-up rig above the body of water when the hull of the jack-up rig rests upon the upper wall surface of the plurality of wall members.