KR200483819Y1 - Test Apparatus for Testing Drilling Equipment - Google Patents

Abstract

The present invention relates to a drilling equipment testing apparatus, which can expose drilling equipment used in a deep sea environment such as a BOP equipment to a condition similar to a deep water environment to perform various tests, It is possible to smoothly and quickly perform the installation and operation of the drilling equipment at the actual installation site such as the deep sea, and to improve the structure of the container body and the container cover of the pressure vessel into which the drilling equipment is inserted, The present invention provides a drilling equipment testing apparatus which can improve the internal pressure of a pressure vessel and thereby enable a more stable test operation.

Description

≪ Desc / Clms Page number 1 > Test Apparatus for Testing Drilling Equipment &

The present invention relates to a drilling rig test apparatus. More specifically, drilling equipment used in a deep sea environment such as BOP equipment can be exposed to similar conditions in deep water environment, so that various tests can be performed, thereby preventing and managing troubles of drilling equipment in advance. The installation and operation of the drilling equipment can be carried out smoothly and quickly at the actual installation site and the structure of the container body and the container cover of the pressure vessel into which the drilling equipment is inputted is configured to be strengthened with each other, To thereby improve the internal pressure of the drilling rig, thereby enabling a more stable test operation.

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, 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 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 recent years, the development of deep-sea oil fields has been actively promoted, so safety of various drilling equipments is especially important. Among the drilling equipments, the most relevant equipment for drilling is BOP (Blow out Preventer, Prevention device).

BOP equipment is installed to prevent the gas explosion of submarine wells by safely removing high pressure gas generated during drilling process and connected to the upper wellhead of submarine oil well through a riser from marine drilling facility .

These BOP equipment is designed to withstand a pressure of 15,000 psi with internal pressure in a high pressure (4,300 psi) environment at depths of 3,000 m or more, suitable for deep sea environments. However, since the test is not performed in the actual environment until it is installed in the actual deep water well, various problems arise in actual installation work.

Generally, the test for the BOP equipment is partially tested by applying external pressure or internal pressure separately to each part constituting the BOP equipment, and there is no device capable of performing such a test in the fully assembled state As a state, there is a desperate need for a device capable of performing various types of testing under the same conditions as the actual environment.

Korean Patent No. 10-1185286

The object of the present invention is to expose drilling equipment used in a deep sea environment such as BOP equipment to a condition similar to a deep sea environment to perform various tests, And it is an object of the present invention to provide a drilling equipment testing apparatus that can prevent and manage problems with equipment in advance so that installation and operation of drilling equipment can be smoothly and quickly performed in actual installation sites such as deep sea.

Another object of the present invention is to improve the internal pressure of the pressure vessel by constructing the structure of the pressure vessel into which the drilling equipment is inputted to the container body and the container cover in such a manner as to strengthen the mutual coupling force, And to provide a drilling equipment test apparatus which enables the drilling equipment to be tested.

The present invention relates to a drilling equipment testing apparatus for testing a drilling equipment used in a deep sea environment, in which a test chamber is formed so that the equipment to be tested can be inserted therein, and the test chamber is provided with a liquid A pressure vessel to be stored; And an external pressure supply unit for raising a pressure of the liquid so that a pressure of the liquid stored in the test chamber reaches a deep pressure, wherein the pressure vessel includes a container body in which the test chamber is formed, A main body clutch portion and a cover clutch portion which are engaged with the container main body and the container cover so as to restrain the upward and downward movement while being mutually engaged, To provide a drilling rig testing device.

At this time, the device under test can be applied as BOP equipment.

Also, a test well head may be fixedly mounted on the lower portion of the inner space of the pressure vessel so that the BOP equipment is seated.

The apparatus may further include an internal pressure supply unit for supplying a high-pressure fluid to the test well head so that internal pressure is transferred to the BOP equipment through the test well head.

Further, a separate sealing member may be interposed between the container body and the container cover.

The cover clutch portion is formed around the outer circumferential surface of the lower end of the container cover. The cover clutch portion is formed at a predetermined angle in a state in which the container cover is in contact with the upper surface of the container body, The main clutch portion and the cover clutch portion can be engaged with each other.

The main body clutch unit may include a main body flange portion protruding outwardly along an outer circumferential surface of an upper end of the container main body; An outer support portion bent upward from an outer end of the body flange portion; A plurality of upper supporting portions formed at equal intervals along the upper end of the outer supporting portion and protruding inward; And an inner support portion bent downward from an inner end of the upper support portion.

The cover clutch part may include a cover flange part formed on the upper surface of the main body flange part such that a plurality of the cover clutch parts are formed at equal intervals around the outer circumferential surface of the lower end of the container cover, And a cover supporting part formed upwardly bent at an outer end of the cover flange part and inserted into a space between an outer supporting part and an inner supporting part of the main body clutch part as the container cover rotates at a predetermined angle.

The upper end of the cover support portion of the cover clutch portion is in close contact with the lower surface of the upper support portion of the main body clutch portion in a state where the main clutch portion and the cover clutch portion are mutually meshed, Can be formed in close contact with the upper surface of the sub cover flange portion.

The same type of tapped holes are continuously formed in the outer support portion and the inner support portion of the main body clutch portion and the cover support portion of the cover clutch portion so that one fastening bolt is simultaneously engaged with the main clutch portion and the cover clutch portion. .

Meanwhile, the present invention is a pressure vessel for testing a drilling rig used for testing a drilling equipment used in a deep sea environment, wherein a test chamber is formed inside the drilling rig, A container body in which the liquid to be tested is stored so as to be immersed in the test chamber; And a container cover which is hermetically coupled to an open upper surface of the container body. The container body and the container cover are each formed with a main clutch portion and a cover clutch portion which are engaged with each other to restrain upward and downward movement To provide a pressure vessel for testing a drilling rig.

According to the present invention, drilling equipment used in deep sea environments such as BOP equipment can be exposed to similar conditions in deep sea environment and various tests can be performed, thereby preventing and managing the problems of drilling equipment in advance, It is possible to smoothly and quickly perform the installation and operation of the drilling equipment in the same actual installation site.

Further, since the structure of the container body and the container cover of the pressure vessel into which the drilling equipment is inputted is configured in such a manner that the mutual coupling force is strengthened, the internal pressure of the pressure vessel can be improved, It is effective.

1 is a conceptual diagram schematically showing a configuration of a drilling rig testing apparatus according to an embodiment of the present invention;
FIG. 2 is an operational state diagram schematically illustrating an internal construction of a pressure vessel and a drilling equipment input process according to an embodiment of the present invention;
3 is a cross-sectional view schematically showing a mutual coupling structure for a container body and a container cover of a pressure vessel according to an embodiment of the present invention;
4 is a perspective view schematically showing a mutual coupling structure of a container body and a container cover of a pressure vessel 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.

FIG. 1 is a conceptual diagram schematically showing a configuration of a drilling rig testing apparatus according to an embodiment of the present invention. FIG. 2 is a schematic view illustrating an internal configuration of a pressure vessel and a drilling apparatus loading process according to an embodiment of the present invention. FIG.

The apparatus for testing a drilling rig according to an embodiment of the present invention is an apparatus capable of performing various types of tests by exposing a drilling equipment used in a deep-sea environment to environmental conditions similar to a deep-sea environment. The apparatus includes a pressure vessel 100, And a supply unit 400.

The test chamber C is formed in the inner space of the pressure vessel 100 so that the equipment to be tested can be inserted therein and the liquid L is stored in the test chamber C so that the equipment to be tested is locked. In this case, the equipment to be tested may be a device used in a deep sea environment, for example, a BOP equipment 200 that is latched to the upper well head of a seabed well to prevent internal gas explosion of the seabed well can be applied . Hereinafter, for convenience of explanation, the case where the BOP equipment 200 is applied as the equipment to be tested will be described as an example.

The pressure vessel 100 may be formed in the form of a container having various shapes in which a test chamber C is formed. It is preferable that the pressure vessel 100 is formed in a cylindrical shape in consideration of the supporting strength against the internal pressure of the pressure vessel 100 . In addition, the pressure vessel 100 may be configured in such a manner that it is connected to a negative electrode power source for corrosion prevention.

1, the pressure vessel 100 includes a container body 110 having a part of an upper surface thereof opened so as to form a test chamber C in an inner space thereof, And can be separately formed by the container cover 120 to be coupled. The liquid L can be stored in the test chamber C of the container body 110 with the container cover 120 opened through such a structure and the liquid L can be stored in the test chamber C of the BOP equipment 200 may be charged into the test chamber C so as to be immersed in the liquid L. The container body 110 may be provided with an external pressure supply port 111 and an internal pressure supply port 112 so as to be supplied with pressure from an external pressure supply unit 400 and an internal pressure supply unit 500 to be described later. The container body 110 and the container cover 120 may be sealed to each other so that the liquid L stored in the internal test chamber C can be maintained at a high pressure state through the pressure supply by the external pressure supply unit 400 .

The external pressure supply unit 400 is configured to raise the pressure of the liquid so that the pressure of the liquid L stored in the test chamber C of the pressure vessel 100 reaches a pressure under a severe condition, for example, a pressure of 4,300 psi or more .

The external pressure supply unit 400 includes an external pressure supply pump 410 which operates to supply fluid to the test chamber C of the pressure vessel 100 at a high pressure and a high pressure fluid which is supplied from the external pressure supply pump 410 to the test chamber C And an external pressure connection line 420 connecting the external pressure supply pump 410 and the test chamber C to be supplied to the test chamber C. The external pressure supply pump 410 generally supplies the liquid and may be applied in the form of a compressor to supply the gas. The external pressure connection line 420 may be installed to be connected from the external pressure supply pump 410 to the external pressure supply port 111 of the pressure vessel 100. In the case where a too high pressure is formed in the internal space of the pressure vessel 100 or the internal passage of the external pressure connection line 420, a separate pressure safety device may be provided to adjust the pressure. For example, The relief valve 401 may be mounted on the external connection line 420 as shown in FIG. Of course, the relief valve 401 may be mounted on one side of the pressure vessel 100.

At this time, the pressure vessel 100 may be disposed on the land according to an embodiment of the present invention. As shown in FIG. 1, the pressure vessel 100 may be partially or completely embedded in the land, fixed or not shown, And can be configured in a fixed manner.

Since the pressure vessel 100 is fixedly installed on the land, it is easy to install the pressure vessel 100 in comparison with the sea, and the test operation on the BOP apparatus 200 can be performed on the land, Can be performed. Particularly, since the BOP equipment 200 can be carried by using the on-land crane in the process of injecting the BOP equipment 200 into the pressure vessel 100, the process of inputting the BOP equipment 200 can be performed more quickly and simply have.

Of course, the pressure vessel 100 may be installed in the sea, and in this case, it is advantageous in that the same installation process as the actual BOP equipment 200 can be reproduced.

The test well head 300 is fixedly mounted on the lower portion of the inner space of the pressure vessel 100 so that the lower end of the BOP apparatus 200 is seated and engaged with the BOP apparatus 200 in the test chamber C, The test well head 300 may be mounted so as to be in communication with the above described pressure-resistant supply port 112. The test well head 300 is the same as the wellhead coupled to the top of the subsea well and is fixedly mounted within the pressure vessel 100 for testing of the BOP equipment 200 in one embodiment of the present invention. Accordingly, the BOP equipment 200 and the test well head 300 are coupled to each other so that the internal spaces are communicated with each other in a state where the BOP equipment 200 and the test well head 300 are latched to each other.

In this case, it is preferable to further include an internal pressure supply unit 500 for supplying a high-pressure fluid to the test well head 300 so that internal pressure is transmitted to the BOP equipment 200 through the test well head 300. The pressure-resistant supply unit 500 is configured to supply high-pressure fluid so that the internal pressure of the BOP equipment 200 is so high that a pressure occurring when a gas explosion occurs in the oil well, for example, a pressure of 15,000 psi or more.

The pressure-resistant supply unit 500 includes an internal pressure supply pump 510 that operates to supply a high-pressure fluid to the test well head 300 and an internal pressure supply pump 510 that supplies high-pressure fluid from the internal pressure supply pump 510 to the test chamber C And an internal pressure connection line 520 connecting the internal pressure supply pump 510 and the test well head 300. The pressure-resistant supply pump 510 may be applied in the form of a pump for supplying liquid, or may be applied in the form of a multi-phase pump capable of simultaneously supplying liquid and gas to reproduce the gas generating situation in the oil well have. At this time, when a too high pressure is formed in the internal space of the test well head 300 or the internal flow path of the internal pressure connection line 520, a pressure safety device is provided so as to adjust the pressure. For example, A separate relief valve 401 may be mounted on the pressure connection line 520 as shown in FIG.

1 shows a state in which a pressure resistant supply port 112 is formed in the container body 110 of the pressure vessel 100 and the test well head 300 is connected to the pressure resistant supply port 112. In this case, And the pressure-resistant connection line 520 may be connected to the pressure-resistant supply port 112.

At this time, the test well head 300 is supported through a separate well head support 310 as shown in FIG. 2 or is separated from the inner bottom surface of the pressure vessel 100 by a separate frame (not shown) The test well head 300 disposed in this manner is connected to the internal pressure supply port 112 and the test well head 300 so that high pressure fluid can be supplied from the internal pressure supply unit 500 A flexible hydraulic hose (not shown) may be provided. 2, the flexible hydraulic hose is formed to have flexibility so that it can be bent in a curved shape as the vertical position of the test well head 300 is changed. In addition, the flexible hydraulic hose is formed to have flexibility of 15,000 psi pressure Respectively.

1, the external pressure supply pump 410 and the internal pressure supply pump 510 are mounted on a land structure P installed adjacently to the sea and pumped seawater into the external pressure supply port 111 and the internal pressure And the supply port 112, respectively.

According to this configuration, the drilling rig testing apparatus according to an embodiment of the present invention raises the pressure of the internal liquid L in the separate pressure vessel 100 to the deep sea pressure state of 3,000 m or more by the external pressure supply unit 400 The external pressure test for the BOP equipment 200 can be performed. That is, when the BOP equipment 200 is exposed to deep pressure, it can be tested whether it is structurally stable, whether it operates normally, or whether leaks occur.

Also, by providing the BOP equipment 200 with an internal pressure of 15,000 psi or more through the pressure-resistant supply unit 500, it is possible to perform the pressure resistance test of the deep-sea environment for the BOP equipment 200. [ For example, it is possible to perform an internal pressure test on Ram, Annular, and various valves constituting the BOP equipment 200.

First, the container body 110 of the pressure vessel 100 is installed on the shore, and then the liquid L is stored in the test chamber C. As shown in FIG. The process of storing the liquid L in the test chamber C may be performed by supplying seawater through the external pressure supply unit 400, but a separate pump may be used. In the state where the liquid L is stored in the test chamber C, the BOP equipment 200 is put into the test chamber C using a crane (not shown) so as to be immersed in the liquid, Tightly.

2, the BOP equipment 200 is installed in a state of being coupled to the lower end of the container cover 120 and is configured to be inserted into the test chamber C at the same time in the sealing process of the container cover 120 . That is to say, by coupling the container cover 120 and the BOP equipment 200 together so that the container cover 120 is coupled to the upper surface of the container body 110 by the crane, May be configured to be injected into the test chamber (C). At this time, the BOP equipment 200 is put into the test chamber C, and at the same time, it is fit to the test well head 300 located under the inner space of the container body 110. Therefore, the operation of closing the container cover 120 to the container body 110 and the operation of engaging the test well head 300 can be performed. This simplifies the operation and can be performed conveniently and quickly.

In this case, in order to guide the vertical movement path of the BOP equipment 200 in the process of putting the BOP equipment 200 together with the container cover 120 into the inner space of the pressure vessel 100, As shown in FIG. 2, a separate movement guide unit 130 may be mounted in the inner space.

The test well head 300 may also be arranged to be supported by a separate well head support 310 as shown in Figure 2. The well head support 310 may be configured to raise the test well head 300 And may be configured in the form of a cylinder or an elastic spring which is actuated by hydraulic pressure so as to support the piston. 2 (a), when the BOP equipment 200 is not seated in the test well head 300, the test well head 300 is moved upward by the well head support 310 And the test well head 300 is held by the well head support 300 as the BOP equipment 200 is inserted into the pressure vessel 100 and is seated on the test well head 300 as shown in FIG. (Not shown). According to this structure, the coupling process between the BOP equipment 200 and the test well head 300 can be performed more accurately and stably.

When the BOP equipment 200 is actually installed in a submarine well, it is connected to a drilling facility in the sea via a riser. Therefore, a separate riser 220 is connected to the BOP equipment 200 to be supplied to the test chamber C , Which may be configured to be connected to a separate control room 600.

The control chamber 600 may be configured to control the operation of the BOP equipment 200, the external pressure supply unit 400 and the internal pressure supply unit 500 and to monitor the operation state of the BOP equipment 200, And may be installed on the shore near the vessel 100.

In order to control the BOP equipment 200 in the control room 600, two pieces of Mux cables for supplying electric signals are connected from the control room to the BOP equipment, and two pieces of BOP equipment are connected from the hydraulic pressure supply unit such as HPU (Hydraulic Power Unit) It is configured to supply hydraulic pressure to the BOP equipment through two hydraulic lines (conduit line) equipped in the equipment. That is, the power and valve operation signals are transmitted through the mux cable, and the operations of closing and opening are performed using the supplied hydraulic pressure of the ram and the annulus of the BOP equipment. In other words, the control room 600 can be operated by controlling the BOP equipment by connecting the MOP cable with the MOP cable to supply the control command and the hydraulic line to supply the hydraulic pressure. The electric cable and the hydraulic line are connected to the riser 220, As shown in FIG. In this case, the riser 220 may not be provided if necessary.

According to this structure, it is possible to test whether or not the installation process of the BOP equipment 200 is normally performed in addition to the external pressure and internal pressure test for the BOP equipment 200. For example, it may be tested whether the BOP equipment 200 normally latches into the test well head 300. [ In addition, various control tests for the BOP equipment 200 and all operations occurring in the actual seabed well are performed through the control room 600, which performs the same function as the BOP control system in the drilling facility and can control the operation of the BOP equipment 200 It is possible to test it.

Various sensors and image devices may be further installed inside the pressure vessel 100 to monitor the internal state of the pressure vessel 100 and the operation state of the BOP equipment 200. In addition, The devices may be connected to the control room 600 to monitor the operation status of the BOP equipment 200 through the control room 600. [

For example, an underwater camera 150 and an illumination (not shown) may be mounted inside the pressure vessel 100 to observe the internal state of the pressure vessel 100, as shown in FIG. 2, The sensor module 140 may be mounted inside the pressure vessel 100 to measure the internal state of the pressure vessel 100. The sensor module 140 may include a pressure sensor, a temperature sensor, a strain gauge, a level meter, and the like. The deformation amount of the BOP apparatus 200 with respect to the ram apparatus can be measured through the strain gauge and the environmental conditions such as the pressure and temperature with respect to the internal space of the pressure vessel 100 can be measured through the pressure sensor and the temperature sensor . Also, it is possible to observe the latching process of the BOP equipment and the test well head through the underwater camera 150, and confirm whether the equipment is broken or not.

2, an acoustic control unit 160 for transmitting and receiving information to / from the control room 600 may be mounted in the pressure vessel 100. The acoustic control unit 160 may include an acoustic control command unit, a transducer, And a transceiver. It is possible to perform the operation control function of the BOP equipment through the acoustic control command unit and to receive the BOP equipment control information and transmit the monitoring information through the transducer and the transceiver.

Meanwhile, a separate robot arm 700 may be mounted in the pressure vessel 100 so as to perform a test auxiliary operation on the BOP equipment 200 fixedly mounted in the test chamber C. The robot arm 700 can be manufactured in various forms, and a robot arm used in a general ROV (Remotely Operated Vehicle) can be applied. The robot arm 700 may be configured to assist a coupling process between the BOP equipment 200 and the test well head 300 or perform various operations such as an operation test function, a pressure test assist function, and a maintenance function for the BOP equipment And the operation control for this can be performed through the control room 600.

A guide rail 710 may be mounted on the inner surface of the pressure vessel 100 to move the robot arm 700 and the robot arm 700 may be movably coupled along the guide rail 710 . 1, the guide rail 710 may be formed long in the vertical direction on the inner surface of the pressure vessel 100, and may be formed long in the circumferential direction on the inner surface of the pressure vessel 100 Or may be formed in various forms.

In the above description, only the BOP equipment 200 has been described as the equipment to be tested. However, in addition to the BOP equipment 200, various drilling equipment used in a deep sea environment such as a Christmas tree can be applied. You will also be able to perform integrated operation tests, including transport and mud circulation tests and Christmas tree equipment tests. Here, the integrated operation test may include all the system operations from departure to mission return to return. In addition, the equipment under test can be applied to all types of equipment working or installed in the deep sea as well as drilling equipment, and external pressure test and pressure test can be applied to them.

FIG. 3 is a cross-sectional view schematically showing a mutual coupling structure for a container body and a container cover of a pressure vessel according to an embodiment of the present invention. FIG. 4 is a cross- Fig. 2 is a perspective view schematically showing a mutual coupling structure for a cover.

The pressure vessel 100 according to one embodiment of the present invention is separated into a container body 110 and a container cover 120 as described above. The container body 110 and the container cover 120 are provided with a container body 110 And the cover cover 120 are coupled to each other so as to restrain the upward and downward movement, respectively, and the cover clutch portion 820 can be respectively formed. Further, although not shown, a separate sealing member (not shown) may be interposed between the container body 110 and the container cover 120.

The main clutch portion 810 is formed around the upper end peripheral surface of the container body 110 and the cover clutch portion 820 is formed around the lower end peripheral surface of the container cover 120, The main clutch portion 810 and the cover clutch portion 820 are rotated as the cover 120 is rotated at a predetermined angle alpha along the center axis CL of the pressure vessel 100 in a state where the cover 120 is in contact with the upper surface of the container body 110. [ May be configured to be interdigitated.

The main body clutch portion 810 includes a main body flange portion 811 protruding outwardly from a front portion along the periphery of the upper end of the container main body 110 and a flange portion 811 protruding upward from the outer end of the main body flange portion 811 An upper support portion 813 formed to be spaced apart at equal intervals along the upper end of the outer support portion 812 and protruding inwardly from the inner end of the upper support portion 813; And an inner support portion 814 that is downwardly bent.

The cover clutch portion 820 includes a cover flange portion 821 formed at an equal interval along the outer circumferential surface of the lower end of the container cover 120 and protruding outwardly and seated on the upper surface of the body flange portion 811, A cover which is bent upward at the outer end of the cover flange portion 821 and inserted into the space between the outer support portion 812 and the inner support portion 814 of the main body clutch portion 811 as the container cover 120 rotates by a predetermined angle, And a support portion 822.

The container cover 120 is pressed against the container body 110 in a state in which the container cover 120 is in contact with the container body 110 so that the cover flange portion 821 is seated on the body flange portion 811, The cover support portion 822 of the cover clutch portion 820 is rotated about the center axis CL of the container 100 by the outer support portion 812 of the main body clutch portion 811 and the inner support portion 812 of the main clutch portion 811, (814).

The upper end of the cover supporting portion 822 of the cover clutch portion 820 is formed in close contact with the lower surface of the upper supporting portion 813 of the main body clutch portion 810 and at the same time the inner supporting portion 814 ) May be formed in close contact with the upper surface of the cover flange portion 821 of the cover clutch portion 820.

Accordingly, when the main clutch portion 810 and the cover clutch portion 820 are engaged with each other in this manner, the cover clutch portion 820 and the main body clutch portion 810 are interlocked with each other, It is possible to prevent the container cover 120 and the container body 110 from being separated by pressure even if the pressure inside the pressure container 100 is increased.

The main clutch portion 810 and the cover clutch portion 820 are connected to the outer support portion 812 and the inner support portion 814 of the main body clutch portion 810 and the cover support portion 822 of the cover clutch portion 820, The same type of the tap holes T may be continuously formed so that one fastening bolt 830 may be coupled to the fastening bolt 830 at the same time.

Therefore, by fastening the fastening bolt 830 to the tapped hole T, the mutual coupling force between the container body 110 and the container cover 120 can be enhanced by the bolt coupling force, The engagement force of the container body 110 and the container cover 120 can be further enhanced through the mutual engagement of the cover clutch portion 820. [

The description above 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 this specification are intended to illustrate rather than limit the technical idea 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 which are within the scope of the same should be interpreted as being included in the scope of the present invention.

100: pressure vessel 110: container body
111: External pressure supply port 112: Internal pressure supply port
120: container cover 130: moving guide part
140: Sensor module 150: Underwater camera
160: Acoustic control unit 200: BOP equipment
210: Drilling facility 220: riser
300: Test well head 400: External pressure supply unit
500: internal pressure supply unit 600: control chamber
700: Robot arm 710: Guide rail
810: Main body clutch part 820: Cover clutch part
830: fastening bolt

Claims (11)

A drilling rig test apparatus for testing a drilling rig used in a deep sea environment,
A test chamber is formed in the test chamber so that the test target equipment can be inserted into the test chamber, and a liquid is stored in the test chamber so that the test target equipment is locked; And an external pressure supply unit for raising the pressure of the liquid so that the pressure of the liquid stored in the test chamber reaches a deep pressure,
Wherein the pressure vessel is divided into a container body in which the test chamber is formed and a container cover which is hermetically coupled to an open upper surface of the container body, A main clutch portion and a cover clutch portion are engaged with each other to restrain the upward and downward movement, respectively,
The main body clutch unit includes a main body flange portion protruding outward along the periphery of an upper end of the container main body; An outer support portion bent upward from an outer end of the body flange portion; A plurality of upper supporting portions formed at equal intervals along the upper end of the outer supporting portion and protruding inward; And an inner support portion bent downward from an inner end of the upper support portion; Wherein the drilling equipment test apparatus comprises: The method according to claim 1,
Wherein the equipment to be tested is a BOP equipment. 3. The method of claim 2,
And a test well head is fixedly mounted on the lower portion of the inner space of the pressure vessel so that the BOP equipment is seated and engaged. The method of claim 3,
Further comprising an internal pressure supply unit for supplying a high-pressure fluid to the test well head so that internal pressure is transferred to the BOP equipment through the test well head. 5. The method according to any one of claims 1 to 4,
Wherein a separate sealing member is inserted and interposed at a joint portion between the container body and the container cover. 5. The method according to any one of claims 1 to 4,
Wherein the cover clutch is formed around the outer peripheral surface of the lower end of the container cover and rotates at a predetermined angle with the container cover in contact with the upper surface of the container body, Wherein the main clutch portion and the cover clutch portion are engaged with each other. delete The method according to claim 1,
The cover clutch
A cover flange portion formed on the upper surface of the main body flange portion, the cover flange portion being formed at a plurality of equal intervals around the lower end peripheral surface of the container cover and protruding outwardly; And
A cover supporting portion formed upwardly at an outer end of the cover flange portion and inserted into a space between an outer support portion and an inner support portion of the main body clutch portion as the container cover rotates at a predetermined angle; Wherein the drilling equipment test apparatus comprises: 9. The method of claim 8,
Wherein an upper end of a cover support portion of the cover clutch portion is formed in close contact with a lower surface of an upper support portion of the main body clutch portion in a state where the main clutch portion and the cover clutch portion are mutually meshed with each other, And is formed in close contact with the upper surface of the flange portion. 9. The method of claim 8,
The same type of tapped holes are continuously formed on the outer support portion and the inner support portion of the main body clutch portion and on the cover support portion of the cover clutch portion so that one coupling bolt is simultaneously coupled through the main clutch portion and the cover clutch portion. Drilling equipment test equipment to be. delete

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