KR20150096235A - Test Pipe Deflection Device and BOP Test Apparatus Using The Same - Google Patents

Abstract

The present invention relates to a test pipe deformation device and a BOP test apparatus using the same. The test pipe inserted into BOP equipment is pressed and deformed inside the BOP equipment so as to control an arrangement state such as a tilted form or an eccentric form in order to test the operation state of a ram device and an annular device while the arrangement state of the test pipe is variously controlled. The present invention is capable of more accurately and variously testing whether or not the BOP equipment is normally operated or a gas is leaked. Therefore, the present invention is capable of improving accuracy and reliability with respect to a test result.

Description

[0001] The present invention relates to a test pipe deformation device and a BOP test device using the same,

The present invention relates to a test pipe deformation apparatus and a BOP test apparatus using the same. More specifically, the test pipe inserted into the BOP equipment is press-deformed to be inclined or eccentrically disposed inside the BOP equipment, so that the arrangement state of the test pipe can be adjusted. Thus, And the operation status of the annuno device can be tested. In this state, it is possible to test more accurately and variously whether the BOP equipment is operating normally or whether gas leakage occurs, And a test pipe deformation apparatus capable of improving reliability and a BOP test apparatus using the same.

As the international phenomenon of industrialization and industry develops, the use of resources such as petroleum is gradually increasing, and thus the stable production and supply of oil is becoming a very important issue on a global scale.

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, in recent years, development of deep sea oil field has become more active with the development of submarine mining technology.

Conventional submarine drilling has been mainly used as a fixed platform for drilling at one point in the offshore area. Recently, floating drilling facility capable of drilling in depths of 3,000m or more has been developed and used for deep sea drilling.

These drilling facilities are equipped with various drilling equipments such as derrick system, riser, drill string and so on to drill oil and gas existing under the sea floor.

In the development of deep-sea oilfields, safety must be a top priority, and BOP (Blowout Preventer) equipment is installed at the top of the submarine oil well as a last safety measure to prevent oil explosion. The BOP equipment is connected to the riser of a drill ship floating on the sea and is seated on the upper well head of the seabed well. A plurality of ram devices and an annular device are mounted to prevent oil or gas from being blown from the inside of the well .

1 is a conceptual diagram schematically showing an internal structure of a general BOP equipment.

1, the general BOP equipment 200 includes a BOP bore hole 210 formed therein, a lower end coupled to a well head (not shown) installed at the upper end of the submarine well, and a BOP bore hole 210 The drilling pipe 220, for example, a drill pipe or the like is inserted into the submarine oil well.

The BOP equipment 200 is provided with a plurality of ram devices 202 and an annular device 201. When the oil or gas is ejected from the submarine oil wells, The BOP borehole 210 of the first embodiment shown in FIG. The plurality of ram devices 202 may be configured in various ways such as a blindshare ram, a casing shear ram, a pipe ram, a variable ram, and each ram device 202 may cut or break the drilling pipe 220 present therein The inner BOP borehole 210 of the BOP equipment is blocked by surrounding the outer circumferential surface of the pipe 220 for drilling.

Such a BOP equipment 200 generally performs a test operation in a drill ship or on the ground. Such a test operation is performed with a separate test pipe inserted in the BOP equipment so as to be similar to the actual environment. At this time, the test pipe is inserted in the vertical direction along the center of the inner BOP bore of the BOP equipment, and the operation test is performed on the ram device and the annular device while maintaining this arrangement state.

However, when a gas spill accident occurs from an actual seabed well, the drilling pipe is eccentrically or inclined from the center of the well head due to the gas ejection pressure, etc., There is a problem that the pipe for drilling can not be normally cut or the BOP bore hole of the BOP equipment can not be completely cut off. Therefore, a test procedure for such a situation is required in the test process for the BOP equipment. However, the conventional BOP test apparatus according to the prior art has a problem in that accuracy and reliability of the test result can not be secured because the test process is not performed.

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the prior art, and it is an object of the present invention to provide a test apparatus for testing a test pipe inserted in a BOP apparatus, It is possible to test the operation state of the ram device and the annuno device while variously arranging the test pipe, and it is possible to test whether the BOP equipment operates normally or whether gas leakage occurs And to provide a test pipe deformation apparatus and a BOP test apparatus using the test pipe deformation apparatus, which can accurately and variously test the apparatus and improve the accuracy and reliability of the test results.

The present invention relates to a test pipe deformation device for adjusting a placement state of a test pipe by deforming a test pipe inserted in a BOP bore hole of the BOP equipment for testing the BOP equipment, And the test pipe is deformed by pressing the pipe in the direction crossing the longitudinal direction.

At this time, the test pipe deformation device includes a cam block having a coupling hole formed at one side thereof to allow the test pipe to penetrate therethrough. And a driving unit for rotating the cam block, wherein a rotation axis of the cam block and the coupling holes are formed at positions spaced apart from each other, and as the cam block rotates about the rotation axis, And can be deformed under pressure.

Further, the cam block may be inserted into or withdrawn from the BOP bore hole along the test pipe penetrating the coupling hole.

The test pipe deformation device may further include a hollow pipe that can be inserted into the inner space of the BOP borehole, and the cam block and the driving unit may be mounted in the inner space of the moving pipe.

Also, the cam block is formed in the shape of a cylindrical solid pipe, and a gear tooth is formed on an outer circumferential surface of the cam block, and the driving unit is arranged to engage with a gear tooth of the cam block. And a drive motor for rotating the drive gear.

On the other hand, the present invention is characterized in that the test pipe deformation device; A test well head to which the BOP equipment is latched; And an internal pressure supply unit for supplying internal pressure to the BOP equipment via the test well head.

At this time, the test well head and the BOP equipment are mounted in a separate storage container, and the liquid may be stored in the storage container so that the test well head and the BOP equipment are locked.

The test pipe deformation device may be configured to test the operation state of the ram device and the annular device mounted on the BOP device while the test pipe arrangement state is adjusted.

According to the present invention, the test pipe inserted in the BOP equipment is press-deformed in the BOP equipment and can be adjusted in its inclined or eccentric configuration. Thus, It is possible to test the operation status of the device and the annular device, and in this state, it is possible to more accurately and variously test whether the BOP equipment is operating normally or whether gas leakage occurs, Accuracy and reliability can be improved.

1 is a conceptual diagram schematically showing an internal structure of a general BOP equipment,
2 and 3 are conceptual diagrams schematically showing a configuration of a BOP test apparatus using a test pipe deformation apparatus according to an embodiment of the present invention,
4 is a schematic view illustrating a state in which a test pipe is deformed using a test pipe deforming apparatus according to an embodiment of the present invention;
5 is a perspective view schematically showing a configuration of a test pipe deformation apparatus according to an embodiment of the present invention,
6 is a schematic view illustrating an operation state of a test pipe deformation apparatus according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIGS. 2 and 3 are conceptual diagrams schematically showing a configuration of a BOP test apparatus using a test pipe deformation apparatus according to an embodiment of the present invention. FIG. 4 is a schematic view illustrating a test pipe deformation apparatus using a test pipe deformation apparatus according to an embodiment of the present invention FIG. 2 is a view schematically showing a state in which a test pipe is deformed.

As described in the related art, the BOP equipment 200 is provided with a BOP borehole 210 therein, and a pipe for drilling is inserted into the BOP borehole 210. In a state where the pipe for drilling is inserted, A plurality of ram devices 202 and an annular device 201 are mounted so as to close the door 210. Therefore, in order to test the BOP equipment 200, a test is performed in a state where a separate test pipe 220 is inserted into the BOP borehole 210.

The test pipe 220 is inserted into the BOP bore hole 210 of the BOP equipment 200 for testing the BOP equipment 200 and the test pipe 220 Apparatus 400 and a BOP test apparatus capable of testing BOP equipment 200 using such a test pipe deformation apparatus 400. [

2 to 4, the test pipe 220 is inserted into the BOP bore hole 210 to press the test pipe 220 in the direction crossing the longitudinal direction, Which will be described in detail with reference to FIGS. 5 and 6. FIG.

The BOP test apparatus according to an embodiment of the present invention includes a test pipe 220 inserted into the BOP borehole 210 so as to perform a test on the BOP apparatus 200 in an environment similar to an actual environment, And is configured to be able to test the operating state of the RAM device 202 and the annular device 201. At this time, the above-described test pipe deformation apparatus 400 is provided so that the test pipe 220 inserted in the BOP borehole 210 can be deformed to adjust the placement state.

In addition, a test well head 300 is provided so that the BOP equipment 200 is seated and latched, and an internal pressure supply unit 500 is provided to supply the internal pressure to the BOP equipment 200 through the test well head 300 do.

The test well head 300 is formed in the same shape as the well head installed at the upper end of the actual seabed well so as to allow the BOP equipment 200 to be seated on the BOP equipment 200. In the BOP equipment 200, A well head bore hole 310 is formed so as to communicate with the well 210. The pressure-resistant supply unit 500 may be formed in the form of a pump capable of pumping the fluid, and is coupled to the test well head 300 via a separate pressure-resistant connection line. Accordingly, the pressure-resistant supply unit 500 can supply the internal pressure to the BOP equipment 200 through the test well head 300. [

According to this structure, after the test pipe 220 is inserted into the BOP bore 210 of the BOP device 200, any one of the plurality of ram devices 202 and the annular device 201 is operated, The test operation is performed in such a manner that the internal pressure is supplied to the test well head 300 and the BOP equipment 200 by the supply unit 500.

At this time, the test pipe 220 is arranged in the BOP equipment 200 by the test pipe deformation device 400, and the test pipe 220 is adjusted in the state where the test pipe 220 is disposed. do.

For example, the test pipe 220 may be bent to cause a bending deformation inside the BOP borehole 210 of the BOP equipment 200 through the test pipe deforming apparatus 400 as shown in FIG. 4 to have an inclination angle? And the testing operation can be performed in such a manner that any one of the plurality of ram devices 202 and the annular devices 201 is operated while the test pipe 220 is inclined.

In a case where a gas spout accident occurs in an actual seabed well, as described in the related art, the drilling pipe is eccentrically or inclined in the BOP equipment 200, and the arrangement of the pipe changes, for example, according to an embodiment of the present invention. The BOP test apparatus can change the arrangement state of the test pipe 220 through the test pipe deformation apparatus 400 so as to simulate the actual environment, The device 201 may be operated to test whether the BOP equipment 200 is operating normally or whether fluid leakage has occurred.

Therefore, the accuracy and reliability of the test result of the BOP equipment 200 can be further improved because it can be tested in an environment more similar to the actual environment.

3, the test well head 300 and the BOP equipment 200 may be arranged in a separate storage container 100, At this time, the liquid L may be stored in the storage container 100 such that the test well head 300 and the BOP equipment 200 are locked. In this case, the storage container 100 may be provided with an internal pressure supply port 110 to be communicated with the well head bore hole 310 of the test well head 300, and the internal pressure supply unit 500 may be connected to the internal pressure supply port 110 ).

According to such a configuration, since the test operation for the BOP equipment 200 is performed in the same manner as in the actual environment, not in the air, more accurate test results can be obtained.

In addition, although not shown, the storage vessel 100 may be formed in a closed form, and the pressure of the liquid stored in the internal space of the storage vessel 100 may be raised to a deep-water pressure through a separate external pressure supply unit Which may apply an external pressure similar to a deep water environment to the BOP equipment 200 so as to perform an external pressure test on the BOP equipment 200.

Next, the configuration of the test pipe deformation apparatus 400 will be described in more detail with reference to FIGS. 5 and 6. FIG.

FIG. 5 is a perspective view schematically showing a configuration of a test pipe deforming apparatus according to an embodiment of the present invention, and FIG. 6 is a view schematically showing an operation state of a test pipe deforming apparatus according to an embodiment of the present invention .

The test pipe deformation apparatus 400 according to an embodiment of the present invention is inserted into the BOP borehole 210 to press the test pipe 220 in a direction crossing the longitudinal direction, So that the test pipe 220 can be deformed.

This test pipe deformation device 400 includes a pressing means capable of pressing the test pipe 220 in the lateral direction. To this end, a test pipe 220 is inserted into a cam A block 410, and a driving unit 420 for driving the cam block 410 to rotate.

The cam block 410 is configured such that the rotation axis 412 of the cam block 410 and the engaging hole 411 are formed at positions spaced apart from each other. For example, the cam block 410 is formed in the shape of a cylindrical solid pipe And a coupling hole 411 may be formed at an edge portion apart from the rotation axis 412. [ The driving unit 420 may be connected to the rotating shaft 412 of the cam block 410 to rotate the rotating shaft 412 of the cam block 410 or rotate the cam block 410 in various other ways.

5 and 6, a gear tooth 413 is formed on the outer circumferential surface of the cam block 410, and the driving unit 420 is engaged with the gear tooth 413 of the cam block 410. [ And a driving motor 421 for driving the driving gear 422 to rotate.

According to this configuration, when the cam block 410 is rotated by the driving unit 420, the test pipe 220 is pressurized and deformed in the lateral direction at a portion penetrating the coupling hole 411 of the cam block 410 .

At this time, since the test pipe 220 is inserted into the coupling hole 411 of the cam block 410, the cam block 410 can move up and down along the test pipe 220. That is, the test pipe 220 can be inserted into or withdrawn from the BOP borehole 210, and the vertical position of the BOP borehole 210 can be adjusted.

Therefore, by adjusting the vertical position of the cam block 410 in the BOP bore hole 210, the pressure deformation section of the test pipe 220 can be variously adjusted, Can be formed.

The test pipe deformation device 400 further includes a hollow type moving pipe 430 which can be inserted into the inner space of the BOP bore hole 210. The test pipe deformation device 400 includes a cam block 410 in an inner space of the moving pipe 430, And the driving unit 420 may be mounted (see Fig. 4). Therefore, by moving the moving pipe 430 into the internal space of the BOP bore 210 with the coupling hole 411 of the cam block 410 inserted into the test pipe 220, And the driving unit 420 can be inserted into or withdrawn from the BOP bore hole 210.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100: Storage container 110: Internal pressure supply port
200: BOP equipment 201: Anunus device
202: Ram device 210: BOP bore hole
220: test pipe 300: test well head
310: Wellhead Borehole 400: Test pipe deformation device
410: Cam block 411: Coupling hole
412: rotational shaft 413: gear tooth type
420: driving unit 421: driving motor
422: driving gear 430: moving pipe
500: pressure-resistant supply unit

Claims (8)

A test pipe deformation apparatus for deforming a test pipe inserted in a BOP bore of a BOP equipment for testing of the BOP equipment,
And the test pipe is deformed by pressing the test pipe in a direction crossing the longitudinal direction by being inserted into the BOP bore hole. The method according to claim 1,
The test pipe deformation device
A cam block having a coupling hole formed at one side thereof to allow the test pipe to penetrate therethrough; And
A driving unit for rotationally driving the cam block;
Wherein the rotation axis of the cam block and the engagement hole are formed at positions spaced apart from each other, and as the cam block rotates about the rotation axis, the test pipe is press-deformed at a portion penetrating the engagement hole And the test pipe deforming device. 3. The method of claim 2,
Wherein the cam block is inserted or withdrawn into the BOP borehole along the test pipe threaded through the engagement hole. The method of claim 3,
The test pipe deformation device
Further comprising a hollow-shaped moving pipe that can be inserted into the inner space of the BOP borehole, wherein the cam block and the driving unit are mounted in the inner space of the moving pipe. 5. The method according to any one of claims 2 to 4,
Wherein the cam block is formed in the shape of a cylindrical solid pipe, a gear tooth is formed on an outer peripheral surface thereof,
The driving unit
A driving gear disposed to be engaged with a gear tooth of the cam block; And
And a driving motor
Wherein the test pipe deforming device comprises: A test pipe deformation device according to claim 1;
A test well head to which the BOP equipment is latched; And
Pressure supply unit for supplying an internal pressure to the BOP equipment through the test well head,
The BOP test apparatus comprising: The method according to claim 6,
Wherein the test well head and the BOP equipment are mounted in a separate storage container, and the liquid is stored in the storage container so that the test well head and the BOP equipment are locked. The method according to claim 6,
Wherein the operation state of the ram device and the annuno device mounted on the BOP device is tested in a state where the arrangement of the test pipe is adjusted through the test pipe deformation device.

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