KR101836902B1 - Stacking platform of bare riser joint - Google Patents

Abstract

The present invention relates to a storage platform for a bare riser joint, and more particularly to a bare riser joint mounted on top of a buoyancy riser joint in a drill rig without a dedicated area for storing a bare riser joint A bare riser joint can be safely stored on top of the booster unshifter joint and replaced with a costly protection to protect the bare riser joint thereby reducing the cost of storing the bare riser joint To a storage platform for a joint.
The storage platform of the bare riser joint according to the present invention is constructed such that a bare riser joint 20 is stored on top of a buoyancy riser joint 10 loaded by a riser rack 31 A support frame (110) installed on top of the booster riser joint (10), supported by the riser rack (31), for allowing the bare riser joint (20) to be mounted on the upper surface; And a support 120 provided to support the bare riser joint 20 on the upper surface of the support frame 110.

Description

{STACKING PLATFORM OF BARE RISER JOINT}

The present invention relates to a storage platform for a bare riser joint, and more particularly to a bare riser joint mounted on top of a buoyancy riser joint in a drill rig without a dedicated area for storing a bare riser joint To a storage platform of a bare riser joint configured to safely store a bare riser joint on top of a booster freezer joint.

In general, the use of global resources such as oil has been increasing steadily as the international phenomenon of industrialization and industrial development has progressed. As a result, the stable production and supply of oil has become a very important issue globally.

For this reason, the development of the marginal field or deep-sea oil field, which had been neglected due to economic difficulties, has become economic in recent years. Therefore, along with the development of seabed mining technology, drilling rigs with drilling facilities suitable for the development of such oilfields have been developed.

Conventional submarine drilling has been mainly used for rig ships or rigid platforms for underwater drilling that can be sailed only by other tugboats and for submarine drilling with anchorage at one point in the sea using a mooring device Recently, a so-called drillship, which is equipped with advanced drilling equipment and manufactured in the same form as a general ship, has been developed for underwater drilling so that it can be sailed with its own power.

In order to drill oil and gas existing in the basement of such sea bed, a riser or drill rig (hereinafter referred to as "riser") for drilling oil and gas existing under the seabed A moonpool is formed so that a drill pipe or a drill pipe can be moved up and down.

In addition, the drill rig is provided with a riser deck for providing space for mounting the riser joint, and a riser rack vertically fixed to the riser deck.

However, in the conventional riser joint mounting space, there is no dedicated section for storing exposed riser joints, i.e., bare riser joints, without buoyancy members, so that the bare riser joints are mounted on the booster riser joint it was difficult to safely store it on the buoyancy riser joint.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a bare riser joint which is mounted on a buoyancy riser joint from a drill rig without a dedicated area for storing a bare riser joint, The purpose of this is to keep the riser joint securely on top of the booster riser joint.

According to an aspect of the present invention, there is provided a platform for storing a bare riser joint on a buoyancy riser joint loaded by a riser rack, A support frame mounted on the upper portion of the visor riser joint and supported by the riser rack, the support frame allowing the bare riser joint to be stacked on the upper surface; And a support provided to support the bare riser joint on the upper surface of the support frame.

The support frame may be provided with workbenches on both sides thereof, and handrails may be installed on the workbench.

The support frame may be provided with a latching frame so as to be engaged with the riser racks located on both sides.

The support frame may be provided with a plurality of pad eyes for connection with a crane.

The support frame may be provided with a plurality of legs extending downward, the legs being supported by the flange of the booster chassis joint.

The support frame may be provided on the upper surface and the lower surface of the first coupling portion and the second coupling portion, respectively, so as to be coupled to each other when stacked vertically.

The support includes a plurality of support beams arranged to individually support the bearer joints on the upper surface of the support frame; And a flange support provided on an upper surface of the support frame so as to be parallel to the support beam and supporting a flange of the bare riser joint.

The support beam may be provided with a shock absorbing pad for shock absorption at a contact portion with the bare riser joint.

According to another aspect of the present invention there is provided a platform for storing a bare riser joint on top of a buoyancy riser joint loaded by a riser rack, And a support frame mounted on the joint so as to be supported by the riser rack, wherein the support frame has a plurality of bare riser joints stacked on the upper surface thereof, and a leg supported on the flange of the booster riser joint There is provided a storage platform for a bare riser joint which can be provided in a plurality of downwardly extending manner.

According to the present invention, a bare riser joint is mounted on top of a buoyancy riser joint in a drill rig without a dedicated area for storing the bare riser joint, And it is possible to replace the expensive protection for the protection of the bare riser joint, thereby reducing the cost of storing the bare riser joint.

1 is a perspective view showing a storage platform of a bare riser joint according to an embodiment of the present invention;
FIG. 2 is a front view showing an installation state of a storage platform of a bare riser joint according to an embodiment of the present invention; FIG.
FIG. 3 is a plan view showing an installation state of a storage platform of a bare riser joint according to an embodiment of the present invention; FIG.
4 is a view showing a main part of a storage platform of a bare riser joint according to an embodiment of the present invention;
FIG. 5 is a front view showing a stacking state of a storage platform of a bare riser joint according to an embodiment of the present invention; FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, the following examples can be modified in various forms, and the scope of the present invention is not limited to the following examples.

FIG. 1 is a perspective view showing a storage platform of a bare riser joint according to an embodiment of the present invention, and FIGS. 2 and 3 are views showing the installation of a bare riser joint storage platform according to an embodiment of the present invention. A front view and a plan view.

1 to 3, a storage platform 100 of a bare riser joint according to an embodiment of the present invention includes a buoyancy riser (not shown) loaded by a riser rack 31, A platform for storing a bare riser joint 20 on top of a joint 10 includes a support frame 110 mounted on a riser rack 31 and supported on a riser rack 31 And both ends of the bare riser joint 20 can be supported by being provided at both ends of the balkanizer joint 10 as in the present embodiment.

The support frame 110 may be in the form of a panel reinforced by a reinforcing member and may be manufactured by, for example, bolting or welding an H beam and an iron plate. The support frame 110 is installed on the upper portion of the viscous riser joint 10, 31, and a plurality of bare riser joints 20 are stacked on the upper surface thereof. On the other hand, the riser racks 31 are fixed on a riser rack deck 30, which provides a place for the loading of the absent riser joints 10, in a plurality of vertical spaced apart arrangements, So that the joints 10 are stacked horizontally in a plurality of rows. Also, the booster unshifter joint 10 is a riser joint equipped with a buoyant force generating buoyancy, and the bare riser joint 20 is a riser joint to which such buoyant material is not attached.

The support frame 110 may be provided with a work table 111 to provide an area where workers can be positioned on both sides and a handrail 112 may be installed on the work table 111 to prevent an operator from falling have. Here, the hand rail 112 can be detachably fixed from the work table 111 by the socket 112a. In particular, when the support frame 110 is separated from the work table 111 during the stacking, It is possible to prevent the damage due to the stacking.

The support frame 110 may be integrally provided at the rear side with a locking frame 113 so as to be hung on the riser racks 31 located on both sides of the support frame 110. The pad frame 114 for connection with a crane for convenience of transportation, And a plurality of legs 115 supported by the flange 11 of the booster riser joint 10 may be provided so as to extend downward. 4, when the support frame 110 is placed on the booster rigidizer joint 10, the center of gravity is directed toward one side and the bare riser joint 20 is moved toward the bow or stern until the bare riser joint 20 is mounted So that the legs 115 are held in the flange 11 of the viscous riser joint 10 to maintain the horizontal state.

The support 120 is provided to support the bare riser joint 20 on the support frame 110. For example, a support 120 may be provided on the upper surface of the support frame 110 to support a plurality of bare riser joints 20, And the flange 21 of the bare riser joint 20 is supported on the upper surface of the support frame 110 so as to be parallel to the longitudinal direction of the beam 121 and the bare riser joint 20 to be mounted on the support beam 121 (Not shown).

The flange support 122 is provided on one side of the flange 21 of the bare riser joint 20 so as to prevent the bare riser joint 20 from slipping out of the riser rack 31 due to the vibration of the drill string. .

The support beams 121 may be formed in a pair so that their respective ends are inclined with the bare riser joint 20 interposed therebetween. In order to protect the coating film on the surface of the bare riser joint 20, A cushioning pad 123 made of an impact-absorbing material such as rubber, urethane, silicone, or the like may be provided for shock absorption against the contact portion with the contact portion 20.

The flange support 122 may be formed of a plate having a groove for mounting the flange 21 of the bare riser joint 20, for example.

As shown in FIG. 5, the support frame 110 may be vertically stacked on the upper surface and the lower surface of the support frame 110. The first and second engagement portions 116, Respectively. Here, the first coupling portion 116 may have a bar shape, and the second coupling portion 117 may have a pipe shape for fitting the bar-shaped first coupling portion 116, The first and second coupling portions 116 and 117 may have various structures for coupling with each other.

The operation of the storage platform of the bare riser joint according to the present invention will now be described.

A support frame 110 is provided so as to extend around the load path of the unthreader joint 10 and a support 120 provided on the support frame 110 is installed in a V shape to form a bare riser joint 20 and is provided with a cushioning pad 123 at the portion of contact with the bushing joint 20 to protect the coating of the bushing 20.

In addition, a workbench 111 is provided to enable a high-altitude work, a handrail 112 is installed on a workbench 111 for protection of lives due to high-altitude work, and legs 115 are provided on a support frame 110 When the support frame 115 is mounted on the upper portion of the visor riser joint 10, it is prevented from tilting before the bare riser joint 20 is mounted, and when the support frame 110 is stored elsewhere, So that they can be stacked and stored by using the second coupling portions 116 and 117. [

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention will be.

10: The booster sealer joint 11: Flange
20: Bare riser joint 21: Flange
30: Riser Rack Deck 31: Riser Rack
110: support frame 111: work table
112: Handrail 112a: Socket
113: latch frame 114: pad eye
115: leg 116: first engaging portion
117: second coupling portion 120: support
121: Support beam 122: Flange support
123: buffer pad

Claims (9)

A platform for storing a bare riser joint (20) on top of a buoyancy riser joint (10) loaded by a riser rack (31)
A support frame (110) mounted on the upper portion of the visorsizer joint (10) and supported by the riser rack (31), the bare riser joint (20) being mounted on the upper surface; And a support (120) provided to support the bare riser joint (20) on the upper surface of the support frame (110). / RTI >
The support (120)
A plurality of support beams 121 arranged on the upper surface of the support frame 110 to individually support the bare riser joints 20; And a flange (21) of the bare riser joint (20) is provided on an upper surface of the support frame (110) so as to be parallel to the longitudinal direction of the bare riser joint (20) A flange support (122) supported on the flange; / RTI >
The supporting frame 110 is installed so as to extend around a load path of the viscous riser joint 10 and the support 120 provided in the supporting frame 110 is installed in a V- Avoiding the auxiliary pipe line of the bare riser joint 20,
Characterized in that the support ribs (121) are provided with cushioning pads (123) to absorb the shock at the contact with the bare riser joint (20), thereby protecting the coating of the bare riser joint Storage platform for. [2] The apparatus according to claim 1, wherein the support frame (110)
Wherein a workbench (111) is provided on both sides and a handrail (112) is installed on the workbench (111). [2] The apparatus according to claim 1, wherein the support frame (110)
And a latching frame (113) is provided to be engaged with the riser racks (31) located on both sides, respectively. [2] The apparatus according to claim 1, wherein the support frame (110)
And a plurality of pad eyes (114) for connection with a crane are provided. The apparatus according to any one of claims 1 to 4, wherein the support frame (110)
Wherein a plurality of legs (115) supported by flanges (11) of said visor riser joint (10) extend downwardly. The apparatus according to any one of claims 1 to 4, wherein the support frame (110)
Wherein a first coupling portion (116) and a second coupling portion (117) are provided on the upper and lower surfaces, respectively, so as to be coupled to each other when stacked vertically. delete delete delete

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