KR20150040516A - Pressure Vessel for Testing Drilling Equipment and Test Apparatus Using The Same - Google Patents

Abstract

The present invention relates to a pressure vessel for testing drilling equipment and an apparatus for testing drilling equipment using the same, which exposes drilling equipment used in deep-sea environment such as BOP equipment to similar conditions with deep-sea environment, and performs various tests, thereby preventing and managing problems about drilling equipment in advance, and smoothly and rapidly performing installation and operation processes of drilling equipment in the real field such as deep sea. Also, interaction can be improved by sealing and bonding a vessel body and a vessel cover of the pressure vessel in which drilling equipment is inputted through an extra collet connection module. Especially, bonding work can be performed more conveniently and stably by using an unmanned submarine without inputting an extra submarine.

Description

TECHNICAL FIELD [0001] The present invention relates to a pressure vessel for testing drilling equipment, and a drilling equipment testing apparatus using the same.

The present invention relates to a pressure vessel for testing a drilling rig and a drilling rig testing apparatus using the same. 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 performed smoothly and quickly at the actual installation site, and the container body of the pressure vessel into which the drilling equipment is inputted and the container cover are hermetically sealed through the separate collet connection module. The present invention relates to a pressure vessel for testing a drilling rig capable of performing a joining operation more conveniently and stably because the joining operation can be performed using an unmanned submersible without the need of a separate diver, and a drilling rig testing apparatus using the same will be.

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

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 expose drilling equipments used in a deep sea environment such as BOP equipment to various conditions, It is possible to prevent and manage the problem of the equipment in advance so that the installation and operation of the drilling equipment can be performed smoothly and quickly in the actual installation site such as the deep sea. .

It is another object of the present invention to improve the mutual coupling force by sealingly connecting the container body of the pressure vessel into which the drilling equipment is inserted and the container cover through a separate collet connection module, and in particular, by using an unmanned submersible The present invention relates to a pressure vessel for testing a drilling machine and a drilling machine testing apparatus using the same, which can more easily and stably perform a joining operation.

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 a liquid A pressure vessel to be stored; 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 chamber is formed in the inside of the test chamber, And a container cover sealingly coupled to an open top surface of the container body, wherein the container body and the container cover are hermetically sealed through a collet connection module which surrounds and presses the outer circumferential surfaces of the joint parts. A test apparatus is provided.

At this time, the collet connecting module includes a connection housing formed to surround the outer circumferential surface of the joint portion of the container body and the container cover; An operating rod linearly movably coupled to an inner space of the connection housing; And a collet moving block for pressing or releasing the outer peripheral surface of the container main body and the container cover in conjunction with the linear movement of the operating rod.

In addition, the operation rod may be configured to be moved by a separate rod driving unit to move linearly.

Further, an engaging groove may be formed on the outer circumferential surface of the container body and the container cover, and an engaging projection may be formed on the collet moving block to engage the engaging groove with the outer peripheral surface of the container body and the container cover being pressed have.

Further, the collet connecting module may be fixedly mounted on an outer circumferential surface of the container cover.

A latching groove may be formed on an outer circumferential surface of the container body, and a latching protrusion may be linearly movably coupled to the latching groove of the collet connecting module so as to be inserted into the latching groove.

The latching protrusion may be elastically supported by a separate elastic spring so as to protrude in a direction to be inserted into the latching groove.

In addition, the connection housing may be equipped with a release switch operable to allow the latching protrusion to be inserted and released from the latching groove.

In addition, the equipment 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 drilling equipment testing 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.

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 sealingly coupled to the open top surface of the container body so as to be opposed to each other, wherein the container body and the container cover are sealedly coupled through a collet connecting module which surrounds and presses the outer circumferential surfaces of the joining parts. To provide a pressure vessel for drilling rig testing.

According to the present invention, drilling equipment used in deep sea environment such as BOP equipment can be exposed to conditions similar to deep-sea environment and various tests can be performed, thereby preventing and managing problems with 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.

In addition, by sealingly connecting the container body of the pressure vessel into which the drilling equipment is inserted and the container cover through a separate collet connection module, the mutual engagement force can be improved, and in particular, by using the unmanned submersible, So that it is possible to carry out the joining operation more conveniently and stably.

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 illustrating a mutual coupling structure of a container body and a container cover of a pressure vessel according to an embodiment of the present invention,
FIG. 4 is a cross-sectional view schematically showing a separation state of a container body and a container cover of a pressure vessel according to an embodiment of the present invention. FIG.
5 is a cross-sectional view schematically illustrating a process of coupling a pressure vessel to a container body and a container cover 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.

A drilling equipment testing apparatus according to an embodiment of the present invention is capable of performing various types of tests by exposing a drilling equipment used in a deep-sea environment to environmental conditions similar to deep-sea environments. The drilling equipment testing 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 top surface opened to form a test chamber C in an inner space, The container cover 120 can be formed separately. 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 such a 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 the 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.

Next, the configuration of the pressure vessel according to one embodiment of the present invention will be described in detail with reference to FIGS. 3 to 5. FIG.

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. 5 is a cross-sectional view schematically illustrating a process of coupling a pressure vessel to a container body and a container cover according to an embodiment of the present invention. Referring to FIG.

The pressure vessel 100 according to an embodiment of the present invention is divided into a container body 110 and a container cover 120 as described above. And is tightly coupled through a collet connecting module 800 that pressurizes and pressurizes.

The collet connecting module 800 is fixedly mounted on the container body 110 or the container cover 120 so as to enclose the container body 110 and the container cover 120 so as to be hermetically sealed And can be configured in various ways.

A connection housing 810 formed to surround the outer circumferential surface of the coupling portion of the container main body 110 and the container cover 120 and an operation rod 840 connected to the inner space of the connection housing 810 so as to be linearly movable And a collet moving block 830 for pressing or releasing the outer peripheral surface of the container main body 110 and the container cover 120 in conjunction with the linear movement of the operating rod 820, The container body 110 and the container cover 120 are hermetically coupled to each other by the pressing force of the block 830. [ At this time, the operation rod 820 may be driven to move linearly by manual operation of the operator, but it is preferable that the operation rod 820 is configured to be linearly driven by a separate rod driver 840.

For example, the connection housing 810 is fixedly mounted on the outer peripheral surface of the container cover 120, and the operation rod 820 is inserted into the connection housing 810 so as to linearly move in the up- And the collet moving block 830 can be mounted so as to reciprocate in the radial direction of the pressure vessel 100 in conjunction with the upward and downward movement of the operating rod 820.

The collet actuating block 830 moves inward along the radial direction when the operation rod 820 moves downward and presses the outer circumferential surface of the joining portion of the container body 110 and the container cover 120. In this case, And a coupling protrusion 831 may be formed in the collet movable block 830 so that the collet movable block 830 can be inserted into the coupling groove 832 . According to this structure, the collet movable block 830 can be engaged with the engaging groove 832 by engaging the engaging projection 831 with the outer peripheral surface of the container body 110 and the container cover 120 being pressed, It is possible to enhance the bonding force and the separation preventing function for the main body 110 and the container cover 120. [

A separate latching groove 851 is formed on the outer circumferential surface of the container body 110 and a separate latching protrusion 851 is formed in the connection housing 810 of the collet connecting module 800 so as to be inserted into the latching groove 851. [ (850) can be linearly movably coupled. At this time, the latching protrusion 850 may be elastically supported by a separate elastic spring 860 so as to protrude in a direction to be inserted into the latching groove 851. When the container body 110 and the container cover 120 are brought into close contact with each other according to this structure, the latching protrusion 850 is engaged with the latching groove 851 by the elastic force so that the container body 110 and the container cover 120 And at the same time, can perform a guiding function with respect to the engagement position of the container main body 110 and the container cover 120. [ On the other hand, in this engaged state, a releasing operation switch 870 of a type that can be operated by a user can be mounted on the connecting housing 810 so that the latching protrusion 850 can be released from the latching groove 851.

5, when the container body 110 and the container cover 120 are assembled with each other as shown in FIG. 5 (a) The latching protrusion 850 elastically protruding inward from the connection housing 810 of the collet connecting module 800 contacts the outer circumferential surface of the container body 110 and the protrusion is released Lt; / RTI >

5 (b), when the container body 110 and the container cover 120 are moved close to each other until the container body 110 and the container cover 120 come into contact with each other, And is elastically inserted into the latching groove 851. When the latching protrusion 850 is engaged with the latching groove 851 as described above, the relative positions of the container body 110 and the container cover 120 are fixed, It can be judged by the engagement state of the latching protrusion 850 and the latching groove 851 without visually confirming whether or not it is positioned at the correct position for mutual coupling.

When the container body 110 and the container cover 120 are positioned and fixed in the correct position for mutual coupling, the operation rod 820 is moved downward as shown in FIG. 5 (c). When the operation rod 820 moves downward, the collet moving block 830 moves inward and the engaging projection 831 is inserted into the engaging groove 832 while at the same time the container body 110 and the container cover 120 are moved, As shown in Fig. Through this process, the container body 110 and the container cover 120 are sealed to each other.

Accordingly, in the pressure vessel 100 according to the embodiment of the present invention, the container body 110 and the container cover 120 are hermetically coupled to each other through the collet connection module 800, A more stable structure can be achieved even if the internal pressure is increased.

Particularly, when the joining operation of the container body 110 and the container cover 120 proceeds from the sea floor, the joining operation can proceed using an unmanned submersible such as ROV (Remotely Operated Vehicle) And the position guide of the container body 110 and the container cover 120 can also be made through the latching protrusion 850. Therefore, The pressure vessel 100 according to the embodiment can perform the remote coupling work using the unmanned submersible also very steadily and smoothly without the addition of the additional diver.

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: 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
800: Collet connection module 810: Connection housing
820: operating rod 830: collet moving block
831: engaging projection 832: engaging groove
840: a rod driving part 850: a latching projection
851: latching groove 860: elastic spring
870: release operation switch

Claims (12)

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,
, The pressure vessel
Wherein the container body and the container cover are separated from each other by an outer circumferential surface of the joint portion and an inner surface of the container body, And is sealingly coupled through a collet connecting module that encloses and pressurizes. The method according to claim 1,
The collet connection module
A connection housing formed to surround the outer circumferential surface of the joining portion of the container body and the container cover;
An operating rod linearly movably coupled to an inner space of the connection housing; And
A collet moving block for pressing or releasing the outer peripheral surface of the container main body and the container cover in cooperation with the linear movement of the operating rod;
Wherein the drilling equipment testing apparatus comprises: 3. The method of claim 2,
Wherein the operation rod is driven by a separate rod driving unit and linearly moved. 3. The method of claim 2,
Wherein an engaging groove is formed on an outer circumferential surface of the container body and the container cover,
Wherein the collet moving block is formed with a coupling protrusion which can be inserted into the coupling groove while the outer peripheral surface of the container body and the container cover are pressed. 3. The method of claim 2,
And the collet connecting module is fixedly mounted on an outer circumferential surface of the container cover. 6. The method of claim 5,
A latching groove is formed on an outer peripheral surface of the container body,
Wherein a latching protrusion is linearly movably coupled to the coupling housing of the collet connecting module so that the latching protrusion can be engaged with the latching groove. The method according to claim 6,
Wherein the latching protrusion is elastically supported by a separate elastic spring so as to protrude in a direction to be inserted into the latching groove. 8. The method of claim 7,
Wherein the connection housing is equipped with a release switch operable to allow the latching protrusion to be inserted and released from the latching groove. 9. The method according to any one of claims 1 to 8,
Wherein the equipment to be tested is a BOP equipment. 10. The method of claim 9,
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. 11. The method of claim 10,
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. As a pressure vessel for testing drilling equipment used to test drilling equipment used in deep sea environments,
A test chamber is formed in an open top 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
A container cover which is hermetically coupled to the open upper surface of the container body in a form facing each other,
Wherein the container body and the container cover are sealingly coupled through a collet connecting module that surrounds and presses the outer circumferential surfaces of the joining portions.

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