KR20150132901A - A Method for Installing Choke and Kill Manifold of Drill Ship - Google Patents

Abstract

The present invention relates to a method for loading a choke and kill manifold of a drillship, which easily loads a choke and kill manifold after the construction of all types of structures without waiting in the case that the water entering time of the choke and kill manifold is delayed during a drillship construction process. The present invention comprises: a first step of mounting the front end part of a choke and kill manifold (10) in an inlet part on a drill floor (21) of a drillship (20); a second step of extending a second towing member (120) connected to the choke and kill manifold (10) and a fourth towing member (140) arranged to face the second towing member (120); a third step of vertically arranging first and third towing members (110, 130); a fourth step of separating the extended second and fourth towing members (120, 140) from the choke and kill manifold (10); a fifth step of mounting the choke and kill manifold (10) on the drill floor (21); a sixth step of separating the vertically positioned first and third towing members (110, 130) from the choke and kill manifold (10) on the drill floor (21); and a seventh step of moving the choke and kill manifold (10) on the drill floor (21) to be mounted on a certain foundation.

Description

[0001] The present invention relates to a choke and a manifold for a drill chuck,

The present invention relates to a method of mounting a choke and a manifold on a drill chuck, and more particularly, to a method of mounting a choke and kill manifold on a drill chuck, So that it can be easily mounted even after drying of various structures.

In general, drillship is a vessel for extracting crude oil or gas from the ocean, and is capable of drilling crude oil in the deep sea region where the platform can not be installed or the sea where the waves are severe.

These drillships are one of the high-tech vessels used to develop deep-sea (over 3000m water depth) oilfields by installing crude oil drilling facilities on the hull to extract crude oil from the deep sea.

The basic installation structure of the drill ship is constructed with various advanced equipments such as derrick and oil drilling equipment which can install drill pipe for crude oil drilling.

A drill pipe is installed at the end of a drill pipe for drilling crude oil, and the drill pipe is connected to a top driver installed in a derrick of a drill rig, which rotates the drill pipe using a motor.

In addition, the drill bit is used for a large number of HP hoses (choke / kill / booster / hydraulic) that can force the mud to the drill pipe so that the soil and stone are continuously generated by the bit when digging the submarine. line is installed and a choke line for discharging a kick from the well and a mud for discharging gas, water, oil and the like) A mud booster line for controlling the viscosity of the drilling material, a hydraulic line for supplying a high-pressure fluid, and a kill line for increasing the pressure inside the well to prevent a kick, .

In other words, the kill line and the choke line are connected to the pipemade system along the marine riser in the BOP Stack, and the kill line is used to prevent the blowout of the high pressure gas after the blow-out prevention device (BOP) A large mud is injected into the piping, and the choke line controls the pressure in the well during the suppression of the jet, which sends gas or mud to the mud system.

In this drilling, a choke and anchor manifold including various valves and gauges is mounted as a valve assembly to which the choke line and the kill line are connected. In FIG. 1, a typical choke and keel manifold 10 is shown .

The choke and ankle manifold 10 is mounted on a drill rig, and before being installed on a hull of a drill rig, a structure such as a derrick or the like is opened. The choke and anchor manifold 10 are rope-bound using a crane (for example, a jib crane) To the upper part of the hull.

However, since the choke and ankle manifold 10 is delivered from another manufacturer, there is no problem if the time of arrival is timely, but if the time of arrival is delayed, the entire drying process of the drill can be delayed.

Therefore, in the case where the chock-and-oil manifold 10 is delayed in time of arrival, the process of continuously installing the remaining structures (derrick, etc.) is continued without stopping the drill-drying process in order to prevent the loss due to the delay in the drying process do.

Therefore, when the choke-and-forgetting manifold 10 is to be mounted in a state in which the remaining structures are installed, there is a problem in that it is considerably difficult to mount the choke-and-

Accordingly, it is an object of the present invention to provide a choke-and-vane manifold that can be easily mounted even if the choke-and- And to provide a method for mounting a choke and a manifold in a drill bit.

In order to solve the above-mentioned problems, the present invention provides a choke and anchor manifold for lifting and moving a choke and ankle manifold connected with a traction member using a crane, Step 1;

A second traction member connected to the choke and lever manifold after the first step, a second traction member extending a length of the second traction member and a fourth traction member disposed opposite the second traction member;

A third step of causing the crane to vertically dispose the first pulling member and the third pulling member after performing the second step;

A fourth step of separating the elongated second pulling member and the fourth pulling member from the choke and the manifold after performing the third step;

After the fourth step, a fifth step of pulling the choke and ankle manifold completely into the drill floor so as to be seated;

A sixth step of separating the first and third towing members vertically erected from the choke enqueue manifold fully entered on the drill floor after performing the fifth step;

After the sixth step, a seventh step of pulling and moving the choke and ankle manifold on a drill floor and placing the choke and anchor manifold on a foundation at a predetermined position is included.

Further, in the present invention, a base frame is formed below the choke-and-forget manifold, and a support beam equipped with a plurality of roller assemblies is detachably installed in the lower part of the base frame to be smoothly moved on a drill floor .

In the second step, the length of the second and fourth pulling members is extended to the second and fourth pulling members through the chain block.

Further, in the third step, the crane is moved backward and upward so that the first pulling member and the third pulling member are arranged vertically.

As described above, the present invention can be applied to other structures (for example, in order to prevent delay in the overall drying time of the ship, without waiting until the choke and anchor manifold are in stock when the arrival time of the choke- For example, derrick, other parts, etc.) are installed in advance, they can be easily mounted and transported to a corresponding position through a crane.

1 is a front view of a typical conventional choke and keel manifold.
2A is a schematic view for explaining a mounting method of the present invention.
FIG. 2B is a schematic view showing the state seen from the side of FIG. 2A.
3A to 3D are schematic views sequentially showing a mounting method according to the present invention.
4 is a view showing a connection structure of a traction member according to an embodiment of the present invention.
5 is a schematic plan view showing the structure of the first, second, third, and fourth traction members fastened to the choke and toe manifold according to an embodiment of the present invention.
6 is an enlarged view seen from A of Fig.
7 is an enlarged view of a roller assembly installed at the bottom of a support beam according to one embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

2A and 2B are schematic views for explaining the mounting method of the present invention. FIG. 5 is a plan view showing the structure of the first, second, third and fourth pulling members fastened to the choke-and-keel manifold.

The method of mounting a choke and ankle manifold according to an embodiment of the present invention is a method of mounting a choke and anchor manifold connected by a traction member through a crane, even if other structures are present. The drawing member applied to the present invention is a term including the first, second, third, and fourth traction members described below.

As shown in the figure, the crane 100 (for example, a jib crane) at the side edge portions of the choke-and-tilting manifold 10 to be mounted on the drill bit 20, And the members 110 and 120 are connected to the third and fourth traction members 130 and 140.

6, a spread beam 150 is provided across the upper ends of the first and second tow members 110 and 120 and the third and fourth tow members 130 and 140, The upper wire rope 160 is connected to the upper end of the spread beam 150 in the upper direction and then the upper end of the upper wire rope 160 is connected to the pull rope 170. [

A connecting piece 152 is formed at both ends of the spread beam 150. A shackle 154 is coupled to upper and lower ends of the connecting piece 152, The first, second, third, and fourth wire ropes 115, 126, 136, 146 of the towing members 110, 120, 130, 140 are connected, 154 to the upper wire rope 160.

The tow rope 170 is connected to the upper end of the crane 100.

In this state, as shown in FIGS. 3A to 3D, the crane 100 is used to lift and move the choke and ankle manifold 10 connected with the traction member, thereby moving the drill floor of the drill bit 20, (Step of positioning the leading end of the choke-and-lever joint manifold 10 through the crane) is carried out by placing the leading end of the choke-and-

The choke and ankle manifold 10 includes a base frame 30 at a lower portion of the choke-and-amp manifold 10 so as to be smoothly movable on the drill floor 21.

A second traction member 120 connected to the choke and lever manifold 10 after the first step and a second traction member 120 and a fourth traction member 120 disposed opposite the second traction member 120 140) (extending the length of the second and fourth traction members).

After performing the second step, a third step is performed to move the crane 100 backward and upward so that the first pulling member 110 and the third pulling member 130 are vertically disposed And arranging the first and third tow members vertically).

In other words, the crane 100 is slightly backwardly and upwardly moved so that the first pulling member 110 and the third pulling member 130 are vertically disposed. At this time, the second pulling member 120 and the fourth The length of the pulling member 140 is extended to the position where the first and third pulling members 110 and 130 are vertical.

After the third step, a fourth step of separating the elongated second pulling member 120 and the fourth pulling member 140 from the choke and lever manifold 10 is performed .

After the fourth step is performed, a fifth step of pulling the choke and ankle manifold 10 completely on the drill floor 21 so as to be seated is carried out (the seating step of the choke and keel manifold).

After the fifth step, a sixth step of separating the first and third tow members 110 and 130 vertically erected from the choke-and-tear-off manifold 10 that has completely entered the drill floor 21 is performed The first and third traction member separation steps).

After carrying out the sixth step, a seventh step of pulling and moving the choke and ankle manifold 10 on the drill floor 21 and placing it on a foundation at a predetermined position is performed Folding the fold to the foundation).

In the mounting method according to the present invention, when a traction member is connected to the choke-and-vane manifold 10, the base frame 30 is provided below the choke-and-forget manifold 10, The support beams 32 and 34 are detachably coupled to the lower portion of the support frame 30 as shown in FIG.

The support beams 32 and 34 are spaced apart from each other at the lower portion of the base frame 30. Although not shown in the figure, the support beams 32 and 34 are detachably assembled through a fastening member such as a bolt.

In addition, lugs 32a, 32b, 34a, 34b for pulling are formed on both ends of the pair of support beams 32, 34, respectively.

A plurality of roller assemblies 40 are provided on the lower surface of the support beams 32 and 34 for smooth movement of the choke and the manifold 10.

On the drill floor 21, a guide rail 22 is installed and fixed so that the roller assembly 40 can be smoothly guided and moved.

7, the roller assembly 40 includes a bracket 41 provided at intervals, two first rollers 42 arranged parallel to the upper portion of the bracket 41, And one second roller (43) provided so as to be in contact with the lower portion of the first roller (42).

Here, two first rollers 42 are disposed on the upper portion of the roller assembly 40, and one second roller 43 is disposed below the first rollers 42. Thus, The load exerted from the choke and the manifold 10 mounted on the upper portions of the support beams 32 and 34 can be dispersed and the transfer of the choke and the manifold 10 can be performed with less load It can be done smoothly.

The first, second, third, and fourth traction members 110, 120, 130, and 140 may include lifting lugs 32a, 32b, and 34a formed at the respective corners of the support beams 32 and 34 5, the first, second, third, fourth, and fourth traction members 110, 120, 130, and 140, respectively, Is shown as being opened for convenience of explanation, but it is actually a structure that is vertically erected and arranged.

The first pulling member 110 is connected to the supporting beam 32 on which the choke and the manifold 10 is mounted and is connected to the first and second pulling members 32a and 32b which are fastened to the lifting lug 32a formed at one end of the supporting beam 32, A second shackle 112 coupled to the first shackle 111, a sling belt 113 connected to the second shackle 112, And a first wire rope 115 that includes a third shackle 114 connected to the third shackle 114.

The second traction member 120 is connected to a lifting lug 34a formed at one end of the support beam 34 and includes a first shackle 121 fastened to the lifting lug 34a, A second shackle 122 connected to the second shackle 121, a chain block 123 connected to the second shackle 122, a sling belt 124 connected to the chain block 123, A third shackle 125 connected to the third shackle 124 and a second wire rope 126 connected to the third shackle 125.

Of course, the first and second wire ropes 115 and 126 may be connected by a single wire rope,

The third towing member 130 is connected to a lifting lug 32b formed at the other end of the support beam 32. The first towing member 130 is coupled to the lifting lug 32b, A second shackle 132 connected to the first shackle 131 and a chain block 133 connected to the second shackle 132. The third and fourth shackles 134 connected to the chain block 133, (135) and a third wire rope (136) connected to the fourth shackle (135).

The fourth towing member 140 is connected to a lifting lug 34b formed at the other end of the supporting beam 34. The first towing member 140 has a first shackle 141 fastened to the lifting lug 34b, A second shackle 142 connected to the first shackle 141, a chain block 143 connected to the second shackle 142, a sling belt 144 connected to the chain block 143, A third shackle 145 connected to the sling belt 144 and the fourth wire rope 146 connected to the third shackle 145.

Of course, the third and fourth wire ropes 136 and 146 may be connected by a single wire rope.

According to the mounting method of the present invention, in the second step, when the length of the second and fourth traction members 120 and 140 is extended, the length of the chain blocks 120 and 140 constituting the second and fourth traction members 120 and 140 (123) and (143) to extend the length.

In the third step, when the first and third tow members 110 and 130 are disposed vertically through the crane 100, the chain blocks of the second and fourth tow members 120 and 140 When the crane 100 is operated to move the first and third tow members 110 and 130 slightly upward and backward while the length is extended through the first and second tow members 120 and 123 140 are pulled down, the inclination angle is lowered (decreased), and at the same time, the first and third tow members 110, 130 are arranged in a vertical state in an inclined state.

A sling belt (not shown) and a puller (not shown) are attached to the tip end of the base frame 30 in order to pull the choke and vhelil manifold 10 completely into the drill floor 21, (Not shown) to be seated on the drill floor 21.

When the choke-and-forget manifold 10 is mounted on a foundation at a predetermined position on the drill floor 21, the support beams 32 and 34 are disassembled and removed from the base frame 30, 32) 34 are also removed together.

According to an embodiment of the present invention, when a traction member is connected to the choke and vhelil manifold 10, the traction member and the valve member of the various valve handles (portions shown in a circle in Fig. 1 and the like) The valve handle, which may cause interference, can be mounted and transported with the valve removed.

When the chock-and-wake-up manifold 10 is delayed in time of arrival, the upper part of the drill floor 20 of the drill rig 10 is moved to the upper part of the drill floor 20 in order to prevent the entire drying process from being delayed, , And a support frame structure (60) is provided on the side of the derrick (50). Of course, there are many other structures on board.

Therefore, in order to mount the choke-and-forget manifold 10 at a predetermined position on the drill floor 21, the installed support frame structure 60 is a failure.

In other words, the wire rope connected to the crane 100 is moved to the support frame structure 40 in order to move the choke-and-lever manifold 10 to the entrance portion (left side in FIG. 3B) It is difficult to easily move and mount the choke-and-forget manifold 10, so that the mounting method according to the present invention can be mounted more easily.

Although the present invention has been described with respect to a method of mounting a choke and anchor manifold mounted on a drill rig, the present invention is not limited to this, and various types of structures to be mounted inside the ship may be easily mounted have.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, But fall within the scope of the appended claims.

10: choke & kill manifold
20: Drill
21: Drill Floor
22: Guide rail
30: Base frame
32, 34: Support beam
32a, 32b, 34a, 34b: lifting lugs
40: roller assembly
41: Bracket
42: first roller
43: second roller
50: Derrick
60: support frame structure
100: Crane
110: first pulling member
111: 1st shackle
112: 2nd shackle
113: Sling belt
114: Third shackle
115: first wire rope
120: second pulling member
121: 1st shackle
122: 2nd shackle
123: Chain block
124: Sling belt
125: Third shackle
126: second wire rope
130: third traction member
131: 1st shackle
132: 2nd shackle
133: Chain block
134: Third shackle
135: fourth shackle
136: Third wire rope
140: fourth traction member
141: 1st shackle
142: second shackle
143: Chain block
144: Sling belt
145: Third shackle
146: Fourth wire rope
150: Spread beam
152: Connection
154: Shackle
160: Upper wire rope
170: tow rope

Claims (4)

The manifold 10 is lifted and moved using a crane 100 by means of a pulling member so as to move the choke and the manifold 10 to the inlet of the drill floor 21 of the drill rig 20, Step 1;
A second traction member 120 connected to the choke and lever manifold 10 after the first step and a second traction member 120 and a fourth traction member 120 disposed opposite the second traction member 120 140); < / RTI >
A third step of moving the first towing member 110 and the third towing member 130 vertically after the second step is performed by moving the crane 100 backward and upward;
A fourth step of separating the elongated second pulling member 120 and the fourth pulling member 140 from the choke and lever manifold 10 after performing the third step;
After the fourth step, a fifth step of pulling the choke and ankle manifold 10 completely on the drill floor 21 so as to be seated;
A sixth step of separating the first and third tow members 110 and 130 vertically erected from the fully entered choke and keel manifold 10 on the drill floor 21 after performing the fifth step;
After the sixth step, a seventh step of pulling and moving the choke-and-forget manifold 10 on the drill floor 21 and placing it on a foundry at a predetermined position;
Wherein the choke and the manifold are mounted on the choke and the manifold.
The method according to claim 1,
A base frame 30 is formed below the choke-and-forget manifold 10 and support beams 32 and 34 having a plurality of roller assemblies 40 are detachably attached to the base frame 30 To be smoothly moved on the drill floor (21).
The method according to claim 1,
The length of the second and fourth pulling members 120 and 140 is extended through the chain blocks 123 and 143 to the second and fourth pulling members 120 and 140 in the second step How to mount a choke and a manifold on a drill chute.
The method according to claim 1,
In the third step, the crane (100) is moved backward and upward so that the first pulling member (110) and the third pulling member (130) are arranged vertically.

Images