KR102659961B1 - Connecting apparatus for mud drainage of drillship - Google Patents

Abstract

A mud drain connection device for a drilling ship is disclosed.
According to one embodiment of the present invention, it is provided to connect a mud pipe connected to a mud bucket equipment and a drain pipe connected to a drain equipment, and is inserted into and installed at one end of the drain pipe located on the drill floor to be detachable from the mud pipe. a connection unit capable of being coupled; and a cover unit installed on the drain pipe to protect the drain pipe when the connection unit is removed from the drain pipe. A mud drain connection device for a drill ship may be provided, including a cover unit.

Description

CONNECTING APPARATUS FOR MUD DRAINAGE OF DRILLSHIP}

The present invention relates to a mud drain connection device for a drilling vessel.

Recently, with the rapid international industrialization and industrial development, limited earth resources are gradually running out, and stable production and supply of resources have become a very important issue.

Accordingly, in recent years, along with the development of oil extraction technology on the seabed, the development of small marginal fields or deep-sea oil fields, which until now had lost economic feasibility, is progressing more actively, and drilling facilities suitable for the development of these fields are being equipped. A drillship is being developed.

In the past, drill ships could only be navigated by other tugboats, and rig ships or fixed platforms were mainly used to drill undersea while anchored at a point in the sea using a mooring device. However, recently, advanced drilling equipment has been used. A drillship, manufactured in the same form as a regular ship so that it can be mounted and sail under its own power, has been developed and is being used for underwater drilling.

In the center of a rig ship or drill ship (hereinafter referred to as “drill ship”) equipped with various drilling equipment to drill for oil or gas existing underground in the seabed, drilling for oil or gas existing underground in the seabed is carried out. A moonpool may be formed so that a riser or drill pipe can be moved up and down.

Meanwhile, due to the nature of drilling operations, drilling ships generate oil mixtures and mud (hereinafter referred to as “mud”), and this mud can be temporarily stored in mud bucket equipment. When the mud stored in the mud bucket equipment is full, it must be drained. However, if this mud is discharged into the sea as is, it will cause serious marine pollution. Therefore, mud generated from the drill ship can be moved to the drain equipment through the drain pipe.

The mud bucket equipment and drain equipment are temporarily connected only when mud needs to be drained. When connected, the mud pipe connected to the mud bucket equipment and the drain pipe connected to the drain device can be connected to each other through flange coupling.

The connection between the mud pipe and the drain pipe is performed on one side of the drill floor. When the drain treatment is finished, the mud pipe is removed from the drill floor because the flange connection with the drain pipe is released, but the drain pipe continues to remain on the drill floor. do.

However, the mud drain connection part of a conventional drill ship has a drain pipe located on the drill floor that protrudes above the drill floor, so it interferes with surrounding structures on the drill floor, interferes with the movement of other equipment, and can cause workers to trip and fall. there is a problem.

In addition, as described above, the structure in which the drain pipe protrudes above the drill floor does not meet the requirements for a mud bucket drain, so structural improvement is urgently needed.

Additionally, since the drill pipe is open when separated from the mud pipe, there is a problem that foreign substances may enter the open drain pipe.

Korean Patent No. 10-1250775 (registered on March 29, 2013)

An embodiment of the present invention is intended to provide a mud drain connection device for a drill ship that can prevent a drain pipe separated from the mud pipe from protruding above the drill floor and prevent external foreign substances from being introduced into the drain pipe.

According to one aspect of the present invention, it is provided to connect a mud pipe connected to a mud bucket equipment and a drain pipe connected to a drain equipment, and is inserted into and installed at one end of the drain pipe located on the drill floor to be detachable from the mud pipe. a connection unit that is coupled; and a cover unit installed on the drain pipe to protect the drain pipe when the connection unit is removed from the drain pipe. A mud drain connection device for a drill ship may be provided, including a cover unit.

In addition, the connection unit may include: an intubation portion formed to have a diameter smaller than the drain pipe and having a predetermined length to be inserted into the drain pipe; and a flange portion connected to one end of the intubation portion, formed with an outer diameter larger than the diameter of the drain pipe, provided to be caught on an end of the drain pipe, and flange-coupled with a flange portion formed on the mud pipe.

In addition, a recessed receiving groove is formed in the drill floor to accommodate the drain pipe and the connection unit, and the height of the connection unit inserted into the drain pipe may be provided to have the same height as the upper surface of the drill floor.

Additionally, the cover unit may include a cover panel formed with a diameter larger than the outer diameter of the drain pipe to close one end of the drain pipe; and a fixing part that is inserted from the lower surface of the cover panel into the inner diameter of the drain pipe to secure the cover panel on the drain pipe.

Additionally, the cover unit may further include a handle provided on the upper surface of the cover panel for gripping.

According to an embodiment of the present invention, the drain pipe is easily installed without a separate fastening means, and the drain pipe does not protrude above the drill floor when separated from the mud pipe, thereby interfering with surrounding structures or workers or interfering with the movement of other equipment. There is an advantage in that it does not work.

In addition, according to the embodiment according to the present invention, the open portion of the drain pipe is protected with a cover unit when separated from the mud pipe, so there is an advantage in preventing external foreign substances from being introduced into the drain pipe.

Figure 1 is a diagram schematically showing the connection between mud bucket equipment and a drain device using a mud drain connection device of a drilling ship according to an embodiment of the present invention.
Figure 2 is a side view showing a state in which the connection unit of the mud drain connection device of the drilling ship according to an embodiment of the present invention is inserted into the drain pipe.
Figure 3 is a side view showing a state in which the connection unit of Figure 2 is pulled out from the drain pipe.
Figure 4 is a side view showing a state before the cover unit of the mud drain connection device of the drilling ship according to an embodiment of the present invention is installed on the drain pipe.
Figure 5 is a side view showing a state in which the cover unit of Figure 4 is installed on the drain pipe to protect the drain pipe.

Hereinafter, the configuration and operation according to an embodiment of the present invention will be described in detail with reference to the attached drawings. The following description is one of several aspects of the invention that may be claimed for patent, and the following description may form part of a detailed description of the invention.

However, when describing the present invention, detailed descriptions of well-known structures or functions may be omitted for clarity of the present invention.

Since the present invention can make various changes and include various embodiments, specific embodiments will be illustrated in the drawings and described in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention.

Terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by these terms. These terms are used only to distinguish one component from another.

When a component is said to be 'connected' or 'connected' to another component, it is understood that it may be directly connected or connected to the other component, but that other components may exist in between. It should be.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise.

Hereinafter, an embodiment of the present invention will be described with reference to the attached drawings.

Referring to FIGS. 1 to 5 , the mud drain connecting device 10 of a drilling ship according to an embodiment of the present invention may include a connecting unit 100 and a cover unit 200.

The connection unit 100 may be provided to connect the mud pipe 21 connected to the mud bucket equipment 20 and the drain pipe 31 connected to the drain equipment 30.

The mud bucket equipment 20 is provided to temporarily store mud generated from the drilling ship. When the mud bucket equipment 20 is full of mud, the mud in the mud bucket equipment 20 is transferred to the mud pipe 21 and the drain pipe. (31) can be connected to each other and moved to the drain equipment (30) for drain processing.

The connection unit 100 may be used to connect the mud pipe 21 and the drain pipe 31 to each other in order to send the mud filled in the mud bucket equipment 20 to the drain equipment 30. One end of the drain pipe 31 is fixedly coupled to the drill floor 1 as shown in FIG. 1, and the other end of the drain pipe 31 is connected to the drain equipment 30.

The mud pipe 21 is connected between the mud bucket equipment 20 and the drain pipe 31 when draining the mud from the mud bucket equipment 20, and is separated from the drain pipe 31 when the drain treatment process is completed. can be removed

However, since the drain pipe 31 is fixedly coupled to the drill floor 1, it cannot be recovered or removed as needed like the mud pipe 21 and is always located on the drill floor 1. Accordingly, a receiving groove 2 recessed to a predetermined depth may be formed in the drill floor 1 so that the drain pipe 31 is accommodated therein rather than protruding on the drill floor 1.

The connection unit 100 may be inserted and installed into one end of the drain pipe 31 located on the drill floor 1, as shown in FIG. 2. At this time, the height of the connection unit 100 may be provided to be the same as or lower than the upper surface of the drill floor 1 so that it does not protrude to the top of the drill floor 1.

Additionally, the connection unit 100 inserted into the drain pipe 31 may be detachably coupled to the mud pipe 21 connected to the mud bucket equipment 20. A flange portion 21a may be formed at the end of the mud pipe 21 to be flange-coupled with the connection unit 100, and the flange portion 21a of the mud pipe 21 and the connection unit 100 may be connected with a bolt or nut. The flange can be coupled through a fastening means such as.

Referring to Figures 2 and 3, the connection unit 100 may include an intubation part 110 and a flange part 120.

The intubation unit 110 is formed to have a smaller diameter than the drain pipe 31 so that it can be inserted into the drain pipe 31 and may have a predetermined length. The intubation unit 110 can be slidably moved in the longitudinal direction (up and down direction) while inserted into the drain pipe 31, and accordingly, unless the intubation unit 110 is completely withdrawn from the drain pipe 31, the drain pipe 31 By sliding in the longitudinal direction of the pipe 31, a certain length gain can be achieved.

Therefore, in a state where the connection unit 100 connects the drain pipe 31 and the mud pipe 21, the effect of extending the length of the drain pipe 31 can be obtained by being pulled out in the longitudinal direction of the drain pipe 31, and the mud pipe 21 Even if the flange portion 120 flange coupled to the drain pipe 31 is slightly pulled in a direction away from the drain pipe 31, the connection with the drain pipe 31 can be maintained by the intubation portion 110 without being released.

Additionally, the flange portion 120 is connected to one end of the intubation portion 110 and may be formed to have an outer diameter larger than the diameter of the drain pipe 31 so as to be hung on the end of the drain pipe 31.

That is, because the flange portion 120 is caught at the end of the drain pipe 31, the intubation portion 110 is not completely inserted into the interior of the drain pipe 31 and can maintain a constant position at the end of the drain pipe 31. .

In addition, the flange portion 120 is flange coupled to the flange portion 21a formed at the end of the mud pipe 21 and is connected to the mud pipe 21, so that the mud from the mud bucket equipment 20 can be drained with the mud pipe 21. It can be moved to the drain equipment (30) through the pipe (31).

Meanwhile, when the drain treatment of the mud in the mud bucket equipment 20 is completed and the connection unit 100 is pulled out and removed from the drain pipe 31 as shown in FIG. 3, as shown in FIGS. 4 and 5 Likewise, the cover unit 200 may be installed on the drain pipe 31.

The cover unit 200 is provided to protect the drain pipe 31 whose end is open after the connection unit 100 is removed and to prevent people from falling into the receiving groove 2 of the drill floor 1. It can be.

Additionally, since the cover unit 200 covers the open end of the drain pipe 31, it can prevent external foreign substances from entering the drain pipe 31.

Specifically, the cover unit 200 may include a cover panel 210 and a fixing part 220, and may further include a handle part 230.

The cover panel 210 may be formed to have a diameter larger than the outer diameter of the drain pipe 31 to close one end of the drain pipe 31. The cover panel 210 may be formed in a smaller size than the receiving groove 2 to be inserted into the receiving groove 2 of the drill floor 1, and after being installed on the drain pipe 31, the cover panel 210 may be installed on the upper surface of the drill floor 1. It may be provided to have the same or lower height.

Additionally, the fixing part 220 may be inserted from the lower surface of the cover panel 210 into the inner diameter of the drain pipe 31 to fix the cover panel 210 on the drain pipe 31.

The fixing part 220 may be made of an elastic material that is elastically deformable, and after being inserted into the drain pipe 31, it provides elastic force to the drain pipe 31 and is elastically supported on the drain pipe 31, thereby forming the cover unit 200. It is possible to prevent it from arbitrarily leaving the drain pipe 31.

Meanwhile, the cover unit 200 may further include a handle portion 230 provided on the upper surface of the cover panel 210 so that the user can hold it with his or her hand. The handle portion 230 may protrude upward from the cover unit 200, and when the user lifts the handle portion 230, the fixing portion 220 is separated from the drain pipe 31 and covers the cover panel 210. And the fixing part 220 can be removed from the drain pipe 31 together with the handle part 230.

Above, the present invention has been described using preferred embodiments, but the scope of the present invention is not limited to the specific embodiments described, and those skilled in the art may use the scope of the present invention. Substitution and change of components are possible, and this also falls within the rights of the present invention.

1: Drill floor 2: Receiving groove
10: Mud drain connection device 20: Mud bucket equipment
21: mud pipe 30: drain equipment
31: drain pipe 100: connection unit
110: intubation unit 120: flange unit
200: cover unit 210: cover panel
220: fixing part 230: handle part

Claims (5)

It is provided to connect the mud pipe 21 connected to the mud bucket equipment 20 and the drain pipe 31 connected to the drain equipment 30, and one end of the drain pipe 31 located on the drill floor 1 A connection unit 100 is inserted into and detachably coupled to the mud pipe 21; and
When the connection unit 100 is removed from the drain pipe 31, a cover unit 200 is installed on the drain pipe 31 to protect the drain pipe 31,
A recessed receiving groove (2) is formed in the drill floor (1) to accommodate the drain pipe (31) and the connection unit (100),
The height of the connection unit 100 inserted into the drain pipe 31 is provided to have a height equal to or lower than the upper surface of the drill floor 1,
Mud drain connection on a drilling vessel. According to claim 1,
The connection unit 100 is,
an intubation portion 110 formed with a diameter smaller than that of the drain pipe 31 and having a predetermined length to be inserted into the drain pipe 31; and
It is connected to one end of the intubation unit 110, is formed with an outer diameter larger than the diameter of the drain pipe 31, and is provided to be caught at the end of the drain pipe 31, and a flange portion formed on the mud pipe 21 Including a flange portion 120 that is flange coupled to (21a),
Mud drain connection on a drilling vessel. delete According to claim 1,
The cover unit 200 is,
a cover panel 210 formed with a diameter larger than the outer diameter of the drain pipe 31 to close one end of the drain pipe 31; and
A fixing part 220 is inserted from the lower surface of the cover panel 210 into the inner diameter of the drain pipe 31 to fix the cover panel 210 on the drain pipe 31.
Mud drain connection on a drilling vessel. According to claim 4,
The cover unit 200 further includes a handle portion 230 provided on the upper surface of the cover panel 210 for a user to hold.
Mud drain connection on a drilling vessel.

Images