Static umbilical cable deepwater pressurizing test structure

Abstract

The invention relates to the technical field of pressing test structures, in particular to a static umbilical cable deepwater pressing test structure, an underwater structure comprises a first guide part and a second guide part, and the pressing test structure comprises a third guide part, a fourth guide part, a test cap, a fastener, a socket and a conduction connector. The third guide piece is matched and connected with the first guide piece, and the fourth guide piece is matched and connected with the second guide piece. According to the invention, the radial positions of the test cap and the hub seat are guided by arranging the first guide piece and the third guide piece; the radial positions of the test cap and the hub seat are limited and the axial positions of the test cap and the hub seat are guided by arranging the second guide piece and the fourth guide piece, and then the axial positions of the test cap and the hub seat are limited through the fastening piece, so that stable centering connection of the test cap and the hub seat is realized; and the sealing performance of the joint of the installed static umbilical cable and the underwater structure can be conveniently tested.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure test structures, and more specifically, to a static umbilical cable deepwater pressure test structure. Background Art

[0002] For deepwater oil and gas fields, floating production platforms, such as tension leg platforms and single-column platforms, are usually developed in combination with underwater production systems and deepwater pipeline systems. Among them, the underwater production system is mainly composed of surface control equipment, dynamic umbilical cables, underwater electro-hydraulic distribution units, static umbilical cables, underwater manifolds, underwater wellheads and Christmas trees. After the deepwater static umbilical cable is connected to the underwater structure, it is connected to the dynamic umbilical cable through the hub on the underwater structure, and the dynamic umbilical cable is connected to the floating production platform.

[0003] Normally, the pre-commissioning of the umbilical cable is to connect the pressure equipment to the pipeline interface of the dynamic umbilical cable on the platform after the floating production platform and the dynamic umbilical cable are installed in place to verify the reliability of the connection and sealing between the dynamic and static umbilical cables and the end joints of the underwater structure. For well areas with more dispersed layout and longer distances, each well area is arranged with a small number of development wells, and there are some well areas or some well areas where the static umbilical cable and the underwater structure are installed and connected in advance, but the floating production platform and the dynamic umbilical cable have not been installed in place, making it impossible to verify the sealing performance of the end joints of the installed static umbilical cable in advance. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiency of the prior art that the sealing performance of the connection between the installed static umbilical cable and the underwater structure cannot be verified in advance, and to provide a static umbilical cable deep-water pressure test structure, which is convenient for testing the sealing performance of the connection between the installed static umbilical cable and the underwater structure.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A static umbilical cable deepwater pressure test structure is provided, wherein the static umbilical cable is connected to a hub seat of an underwater structure, and the underwater structure further comprises a first guide member and a second guide member, wherein the first guide member and the second guide member are both connected to the hub seat, the first guide member is arranged along the radial direction of the hub seat, and the second guide member is arranged along the axial direction of the hub seat; the pressure test structure comprises a first mounting frame, a second mounting frame, a connecting plate installed on the second mounting frame, a third guide member installed on the first mounting frame, a fourth guide member, a test cap, a fastener, a socket and a conductive joint, wherein the second mounting frame is slidably connected to the first mounting frame, the third guide member is cooperatively connected to the first guide member, the fourth guide member is arranged on the connecting plate, the fourth guide member is cooperatively connected to the second guide member, the test cap is arranged on the connecting plate, the test cap and the hub seat are fastened together by the fastener, one end of the test cap is electrically connected to the socket, and the other end of the test cap is electrically connected to the hub seat through the conductive joint.

[0007] The static umbilical cable deepwater pressure test structure of the present invention is connected to the hub seat of the underwater structure and is located at the bottom of deep water. When performing the pressure test, the test cap is hoisted into deep water, the third guide is matched with the first guide, the test cap and the hub seat are aligned in the radial direction, and after the third guide is fully matched with the first guide, the sling is relaxed and the sling is recovered. The two ends of the ROV stroke lifting tool are respectively connected to the second mounting frame and the first guide, the second mounting frame is slid on the first mounting frame and moves toward the hub seat until the fourth guide is fully matched with the second guide. At this time, the test cap and the hub seat are connected through a conductive joint, and the ROV torque tool is used to drive the fastener to tighten, and the test cap and the hub seat are firmly connected, which is convenient for connecting the test cap and the hub seat in deep water, and the pressure equipment is electrically connected to the socket. The sealing performance of the connection between the installed static umbilical cable and the underwater structure can be tested through the test cap. The radial position of the test cap and the hub seat is guided by setting the first guide member and the third guide member; the radial position of the test cap and the hub seat is limited by setting the second guide member and the fourth guide member, and the axial position is guided, and then the axial position of the test cap and the hub seat is limited by fasteners, thereby achieving a stable centering connection between the test cap and the hub seat, which is convenient for testing the sealing performance of the connection between the installed static umbilical cable and the underwater structure.

[0008] Furthermore, the test cap is provided with a fifth guide, the hub seat is provided with a sixth guide, and the fifth guide is connected with the sixth guide. By providing the fifth guide and the sixth guide, the relative position of the test cap and the hub seat is repositioned, and the centering connection of the test cap and the hub seat is further achieved.

[0009] Furthermore, the fastener includes a first fastening claw, a second fastening claw, and a connecting piece for tightening the first fastening claw and the second fastening claw, and the first fastening claw and the second fastening claw are both connected to the connecting piece; the hub seat is located between the first fastening claw and the second fastening claw, and is abutted against the first fastening claw and the second fastening claw. The first fastening claw and the second fastening claw are driven to move relative to each other through the connecting piece, the hub seat is clamped, the position of the hub seat is limited, and the test cap and the hub seat are stably connected.

[0010] Furthermore, the hub seat is provided with a first slot, the first fastening claw and / or the second fastening claw is provided with a first inserting block, and the first inserting block is inserted into the first slot. The first inserting block positions the hub seat, thereby further limiting the axial position of the hub seat.

[0011] Furthermore, the first slot is provided with a first inclined surface, and the first inclined surface gradually inclines toward the central axis of the hub seat from the test cap to the hub seat. When the fastener is tightened, the first plug block is inserted into the first slot, and due to the setting of the first inclined surface, the hub seat is driven to move toward the test cap, thereby achieving a tight connection between the test cap and the hub seat.

[0012] Furthermore, the first fastening claw and the second fastening claw are both provided with a sliding shaft, and the connecting plate is provided with a sliding groove slidably connected to the sliding shaft. The sliding shaft slides in the sliding groove to guide and support the movement trajectory of the first fastening claw and the second fastening claw.

[0013] Furthermore, a limit block is provided on the sliding shaft, the limit block and the first fastening claw abut against two sides of the connecting disk respectively, and the limit block and the second fastening claw abut against two sides of the connecting disk respectively. The limit block is provided to constrain the axial stringing of the fastener.

[0014] Furthermore, it also includes a positioning key and a positioning ring, wherein the positioning key is arranged along the radial direction of the test cap, the positioning key is inserted into the test cap and the connecting disk, and the test cap is provided with a positioning groove in the circumference; the positioning ring is located in the positioning groove, and the two ends are respectively in contact with the test cap and the connecting disk. By providing the positioning key and the positioning ring, the stable centering fixation of the test cap and the connecting disk is achieved, and the axial or radial movement of the test cap relative to the connecting disk is avoided, so that the centering connection of the test cap and the hub seat can be achieved through the connection between the connecting disk and the hub seat.

[0015] Furthermore, a locking assembly is connected between the first mounting frame and the second mounting frame. When the test cap is lifted, the first mounting frame and the second mounting frame are locked to prevent the second mounting frame from shaking on the first mounting frame.

[0016] Furthermore, the locking assembly includes a first clamping member and a second clamping member, wherein the first clamping member is rotatably connected to the first mounting frame, the second clamping member is mounted and connected to the second mounting frame, and the first clamping member is clamped with the second clamping member. When the test cap is lifted, the second clamping member is clamped with the first clamping member to prevent the second mounting frame from sliding on the first mounting frame, and when the sliding connection plate is required, the second clamping member is rotated to separate the second clamping member from the first clamping member.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. A static umbilical cable deepwater pressure test structure of the present invention guides the radial position of a test cap and a hub seat by setting a first guide member and a third guide member; limits the radial position of the test cap and the hub seat by setting a second guide member and a fourth guide member, guides the axial position, and then limits the axial position of the test cap and the hub seat by fasteners, thereby achieving a stable centering connection between the test cap and the hub seat, which is convenient for testing the sealing performance of the connection between the installed static umbilical cable and the underwater structure.

[0019] 2. A static umbilical cable deepwater pressure test structure of the present invention repositions the relative positions of the test cap and the hub seat by setting the fifth guide member and the sixth guide member, thereby further achieving the centering connection between the test cap and the hub seat.

[0020] 3. A static umbilical cable deepwater pressure test structure of the present invention realizes stable centering and fixing of the test cap and the connecting disk by setting a positioning key and a positioning ring, thereby preventing the test cap from moving axially or radially relative to the connecting disk, thereby realizing the centering connection of the test cap and the hub seat through the connection between the connecting disk and the hub seat; and constrains the axial movement of the fastener by setting a limit block, thereby positioning the relative position of the fastener and the connecting disk, thereby realizing the fastened connection of the test cap and the hub seat through the connection between the fastener and the hub seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a static umbilical cable deep-water pressure test structure installed on an underwater structure;

[0022] Figure 2 It is a structural schematic diagram of another perspective of the static umbilical cable deepwater pressure test structure installed on the underwater structure;

[0023] Figure 3 It is a structural schematic diagram of a static umbilical cable deepwater pressure test structure;

[0024] Figure 4 is a schematic diagram of the structure of the fastener fastening the test cap and the hub seat;

[0025] Figure 5 yes Figure 2 A magnified view of the structure at center A;

[0026] Figure 6 It is a schematic diagram of the structure of an underwater structure.

[0027] In the accompanying drawings: 1, hub seat; 101, first slot; 111, first inclined surface; 2, first guide member; 3, second guide member; 4, first mounting frame; 5, second mounting frame; 6, connecting plate; 601, sliding groove; 7, third guide member; 8, fourth guide member; 9, test cap; 901, second slot; 911, second inclined surface; 902, positioning groove; 10, fastener; 1001, first fastening claw; 1011, first plug block ; 1012, second plug block; 1002, second fastening claw; 1003, connecting piece; 1004, sliding shaft; 1005, limit block; 1006, fastener petal; 11, socket; 12, conductive connector; 13, fifth guide piece; 14, sixth guide piece; 15, positioning key; 16, positioning ring; 17, locking assembly; 171, first clamping piece; 172, second clamping piece; 18, indicator arrow; 19, indicator mark. DETAILED DESCRIPTION

[0028] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0029] The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for exemplary explanations and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances. In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of “and / or” appearing in the full text includes three parallel solutions. Taking “A and / or B” as an example, it includes solution A, or solution B, or a solution in which both A and B are satisfied.

[0030] Embodiment 1

[0031] This embodiment is a first embodiment of a static umbilical cable deepwater pressure test structure. Figure 1 As shown, the static umbilical cable is connected to the hub seat 1 of the underwater structure, and the underwater structure also includes a first guide 2 and a second guide 3, the first guide 2 and the second guide 3 are both connected to the hub seat 1, the first guide 2 is arranged along the radial direction of the hub seat 1, and the second guide 3 is arranged along the axial direction of the hub seat 1. In this embodiment, a fixed seat is also included, and the fixed seat is placed on the bottom of the water, and the first guide 2, the second guide 3 and the hub seat 1 are all arranged on the fixed seat. The pressure test structure includes a first mounting frame 4, a second mounting frame 5, a connecting plate 6 installed on the second mounting frame 5, a third guide 7 installed on the first mounting frame 4, a fourth guide 8, a test cap 9, a fastener 10, a socket 11 and a conductive joint 12, the second mounting frame 5 is slidably connected to the first mounting frame 4, the third guide 7 is matched with the first guide 2, the fourth guide 8 is arranged on the connecting plate 6, the fourth guide 8 is matched with the second guide 3, the test cap 9 is arranged on the connecting plate 6, and the test cap 9 and the hub seat 1 are fastened and connected by the fastener 10. The socket 11 can be arranged on the first mounting frame 4, the second mounting frame 5 or the connection plate 6. Figure 3 As shown, a protective joint is inserted into the socket 11. Before performing the pressure test, the protective joint is inserted into the socket 11 to protect the cleanliness of the socket 11. One end of the test cap 9 is electrically connected to the socket 11, and the other end of the test cap 9 is electrically connected to the hub seat 1 through the conductive joint 12. In this embodiment, a sealing disk is also included, which is fixedly connected to the test cap 9. The conductive joint 12 is arranged in the sealing disk, and the two ends of the conductive joint 12 are electrically connected to the hub seat 1 and the test cap 9 respectively. A sealing ring is provided between the sealing disk and the test cap 9, and a sealing ring is provided between the sealing disk and the hub seat 1 to achieve a sealed connection between the test cap 9 and the hub seat 1. By providing a sealing ring, impurities are prevented from entering the connection between the test cap 9 and the hub seat 1.

[0032] In this embodiment, if Figure 6 As shown, the first guide member 2 includes two guide rods, which are arranged in parallel and transversely on the fixed seat, with a gap between the two guide rods, and the hub seat 1 is arranged on the fixed seat. Figure 3 As shown, the first mounting frame 4 includes two supporting saddle plates arranged opposite to each other. Figure 1 As shown, when the first guide member 2 cooperates with the third guide member 7, the sliding rod slides between the two guide rods until it abuts against the support seat, and at the same time, the two support saddle plates abut against the two ends of the guide rods respectively to limit the horizontal lateral movement of the test cap 9. Figure 6 As shown, the second guide member 3 is configured as a guide column, such as Figure 3 As shown, the fourth guide member 8 is configured as a guide sleeve, and when the second guide member 3 and the fourth guide member 8 cooperate, the guide column is inserted into the guide sleeve.

[0033] like Figure 2 As shown, the test cap 9 is provided with a fifth guide member 13, i.e., an insert block, as shown in FIG. Figure 6 As shown, the hub seat 1 is provided with a sixth guide 14, i.e., a slot, and the fifth guide 13 is connected with the sixth guide 14, i.e., the plug is inserted into the slot. By providing the fifth guide 13 and the sixth guide 14, the relative position of the test cap 9 and the hub seat 1 is repositioned, so that the test cap 9 and the hub seat 1 are directly positioned, and the alignment connection of the test cap 9 and the hub seat 1 is further realized.

[0034] like Figure 4 As shown, the fastener 10 includes a first fastening claw 1001, a second fastening claw 1002, and a connecting member 1003 for tightening the first fastening claw 1001 and the second fastening claw 1002. The first fastening claw 1001 and the second fastening claw 1002 can be set to rotate relative to each other, that is, the first fastening claw 1001 and the second fastening claw 1002 can be rotatably connected to the connecting plate 6, and can also be rotatably connected to the second mounting frame 5 or the test cap 9. At the same time, the first fastening claw 1001 and the second fastening claw 1002 can also be set to slide relative to each other, that is, the first fastening claw 1001 and the second fastening claw 1002 can be slidably connected to the connecting plate 6, and can also be slidably connected to the second mounting frame 5 or the test cap 9. The first fastening claw 1001 and the second fastening claw 1002 are both connected to the connecting member 1003, and the connecting member 1003 can be set as a bidirectional screw or a screw-nut structure. The hub seat 1 is located between the first fastening claw 1001 and the second fastening claw 1002 , and is disposed in contact with both the first fastening claw 1001 and the second fastening claw 1002 .

[0035] In this embodiment, the fastener 10 further includes a fastener flap 1006, which is disposed on the connecting plate 6. Figure 4 As shown, this embodiment uses a rotational connection, that is, the first fastening claw 1001 and the second fastening claw 1002 are rotationally connected to the two ends of the fastener flap 1006 respectively, and the connecting member 1003 uses a bidirectional screw, and the threads at both ends of the bidirectional screw are opposite, and the two ends are threadedly connected to the first fastening claw 1001 and the second fastening claw 1002 respectively. By rotating the bidirectional screw, the first fastening claw 1001 and the second fastening claw 1002 can be driven to move relative to each other, so as to clamp and tighten the hub seat 1.

[0036] The working principle of a static umbilical cable deepwater pressure test structure in this embodiment is as follows:

[0037] The static umbilical cable is connected to the hub 1 of the underwater structure and is located at the deep water bottom. When conducting a pressure test, the test cap 9 is hoisted into the deep water, and the third guide member 7 is matched with the first guide member 2, that is, the sliding rod is allowed to slide between the two guide rods. At this time, the two supporting saddle plates, that is, the first mounting frame 4, are abutted against the two ends of the two guide rods. The test cap 9 and the hub 1 are aligned in the radial direction. After the third guide member 7 is fully matched with the first guide member 2, that is, after the sliding rod slides to the bottom of the two guide rods, the sling is relaxed and the sling is recovered. At this time, the position of the first mounting frame 4 is fixed. Connect the two ends of the ROV stroke lifting tool to the second mounting frame 5 and the fixed seat respectively, let the second mounting frame 5 slide on the first mounting frame 4 and move toward the hub seat 1 until the fourth guide member 8 is fully matched with the second guide member 3, that is, the guide column is fully inserted into the guide sleeve, and the fifth guide member 13 is inserted into the sixth guide member 14, that is, the plug is inserted into the slot, and the test cap 9 is connected to the hub seat 1 through the conductive joint 12, and the ROV torque tool is used to drive the fastener 10 to tighten, that is, to drive the bidirectional screw to rotate, and the bidirectional screw drives the first fastening claw 1001 and the second fastening claw 1002 to move relative to each other, clamp and tighten the hub seat 1, and firmly connect the hub seat 1 to the pressure test structure, and electrically connect the pressure equipment to the socket 11. The sealing performance of the connection between the installed static umbilical cable and the underwater structure can be tested through the test cap 9. By setting the first guide member 2 and the third guide member 7, the radial position of the test cap 9 and the hub seat 1 is guided; by setting the second guide member 3 and the fourth guide member 8, the radial position of the test cap 9 and the hub seat 1 is limited, and the axial position is guided, and then the axial position of the test cap 9 and the hub seat 1 is limited by the fastener 10, so as to achieve a stable centering connection between the test cap 9 and the hub seat 1, which is convenient for testing the sealing performance of the connection between the installed static umbilical cable and the underwater structure.

[0038] Embodiment 2

[0039] This embodiment proposes a static umbilical cable deep-water pressure test structure. Based on the first embodiment, in this embodiment, Figure 2 As shown, the hub seat 1 is provided with a first slot 101, and the first fastening claw 1001 and / or the second fastening claw 1002 are provided with a first plug block 1011, and the first plug block 1011 is inserted into the first slot 101. The first plug block 1011 positions the hub seat 1, thereby further limiting the axial position of the hub seat. The first slot 101 is provided with a first inclined surface 111, and the first inclined surface 111 gradually tilts toward the central axis of the hub seat 1 from the test cap 9 to the hub seat 1. When tightening the fastener, the first plug block is inserted into the first slot, and due to the setting of the first inclined surface 111, the hub seat is driven to move toward the test cap 9, thereby realizing a tight connection between the test cap and the hub seat.

[0040] like Figure 4As shown, a sliding shaft 1004 is provided on both the first fastening claw 1001 and the second fastening claw 1002, and a sliding groove 601 is provided on the connecting plate 6 to be slidably connected to the sliding shaft 1004. The sliding shaft slides in the sliding groove to guide and support the motion trajectory of the first fastening claw 1001 and the second fastening claw 1002. A limit block 1005 is provided on the sliding shaft 1004, and the limit block 1005 and the first fastening claw 1001 are respectively abutted on both sides of the connecting plate 6, and the limit block 1005 and the second fastening claw 1002 are respectively abutted on both sides of the connecting plate 6. The axial stringing of the fastener is constrained by setting the limit block.

[0041] In addition, if Figure 2 and Figure 4 As shown, there are two groups of fasteners 10, one group is used to fasten the hub seat 1, and the other group is used to fasten the test cap 9. The two groups of fasteners 10 are connected by a sliding shaft 1004. A second plug block 1012 is provided on the first fastening claw 1001 and / or the second fastening claw 1002 of the fastener 10 for fastening the test cap 9, and a second slot 901 is provided on the test cap 9. The second slot 901 has a second inclined surface 911, and the second inclined surface 911 gradually tilts toward the central axis of the test cap 9 from the hub seat 1 to the test cap 9. When the first plug block 1011 is inserted into the first slot 101, the second plug block 1012 is also inserted into the second slot 901. The first inclined surface 111 and the second inclined surface 911 are used to allow the test cap 9 and the hub seat 1 to move relative to each other while being fastened, so that the contact is tighter.

[0042] Embodiment 3

[0043] This embodiment proposes a static umbilical cable deep-water pressure test structure. Based on the first or second embodiment, in this embodiment, Figure 2 and Figure 5 As shown, it also includes a positioning key 15 and a positioning ring 16. The positioning key 15 is arranged along the radial direction of the test cap 9. The positioning key 15 is inserted into the test cap 9 and the connecting disk 6. The test cap 9 is provided with a positioning groove 902 in the circumference; the positioning ring 16 is located in the positioning groove 902, and its two ends are respectively in contact with the test cap 9 and the connecting disk 6. The positioning key 15 is used to position the test cap 9 and the connecting disk 6 along the radial direction of the test cap 9, and the positioning ring 16 is used to position the test cap 9 and the connecting disk 6 along the axial direction of the test cap 9. By providing the positioning key 15 and the positioning ring 16, the stable centering and fixing of the test cap 9 and the connecting disk 6 is realized, so that the centering connection of the test cap 9 and the hub seat 1 can be realized through the connection between the connecting disk 6 and the hub seat 1.

[0044] like Figure 6 As shown, a locking assembly 17 is connected between the first mounting frame 4 and the second mounting frame 5. When the test cap 9 is lifted, the first mounting frame 4 and the second mounting frame 5 are locked to prevent the second mounting frame 5 from shaking on the first mounting frame 4.

[0045] The locking assembly 17 includes a first clamping member 171 and a second clamping member 172. The first clamping member 171 is rotatably connected to the first mounting frame 4. The first clamping member 171 is set as a clamping block. The clamping block is shaped like a hook. The first clamping member 171 is installed and connected to the second mounting frame 5. The second clamping member 172 is set as a slot. The first clamping member 171 is clamped with the second clamping member 172, that is, the hook hooks the slot. When the test cap 9 is lifted, the second clamping member 172 is clamped with the first clamping member 171 to prevent the second mounting frame 5 from sliding on the first mounting frame 4. When the sliding connection plate 6 is required, the first clamping member 171 is rotated to separate the first clamping member 171 from the first clamping member 171.

[0046] like Figure 1 As shown, auxiliary grooves are coaxially arranged on the support seat and the connecting plate 6. By providing the auxiliary grooves, it is convenient to place the ROV stroke lifting tool, and the ROV stroke lifting tool is better used to slide the connecting plate 6 toward the support seat. Figure 1 and Figure 3 As shown, the second mounting frame 5 is provided with an indication arrow 18, which can also be provided on the second clamping member 172. The first mounting frame 4 is provided with an indication mark 19, and there are two indication marks 19, one indicating unlocking and the other indicating locking. When sliding, the second mounting frame 5 drives the indication arrow 18 to move. When the indication arrow 18 points to the locked indication mark 19, it means that the fourth guide member 8 has been fully matched with the second guide member 3, and the ROV stroke lifting tool can be stopped, thereby ensuring the tight connection between the test cap 9 and the hub seat 1. When the indication arrow 18 points to the unlocked indication mark 19, it means that the fourth guide member 8 has been completely separated from the second guide member 3, and the first guide member 2 can be matched or separated with the third guide member 7.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0048] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A static umbilical cable deep-water pressure test structure, wherein the static umbilical cable is connected to a hub (1) of an underwater structure, and is characterized in that: The underwater structure further comprises a first guide member (2) and a second guide member (3), wherein the first guide member (2) and the second guide member (3) are both connected to the hub seat (1), the first guide member (2) is arranged along the radial direction of the hub seat (1), and the second guide member (3) is arranged along the axial direction of the hub seat (1); the pressure test structure comprises a first mounting frame (4), a second mounting frame (5), a connecting plate (6) mounted on the second mounting frame (5), a third guide member (7) mounted on the first mounting frame (4), a fourth guide member (8), a test cap (9), a fastener (10), a socket (11) and a conducting joint (12). 2), the second mounting frame (5) is slidably connected to the first mounting frame (4), the third guide member (7) is cooperatively connected to the first guide member (2), the fourth guide member (8) is arranged on the connecting plate (6), the fourth guide member (8) is cooperatively connected to the second guide member (3), the test cap (9) is arranged on the connecting plate (6), the test cap (9) and the hub seat (1) are fastened and connected by the fastener (10), one end of the test cap (9) is electrically connected to the socket (11), and the other end of the test cap (9) is electrically connected to the hub seat (1) through the conductive connector (12).

2. The static umbilical cable deepwater pressure test structure according to claim 1, characterized in that: The test cap (9) is provided with a fifth guide member (13), the hub seat (1) is provided with a sixth guide member (14), and the fifth guide member (13) is cooperatively connected with the sixth guide member (14).

3. The static umbilical cable deepwater pressure test structure according to claim 1, characterized in that: The fastener (10) comprises a first fastening claw (1001), a second fastening claw (1002) and a connecting piece (1003) for tightening the first fastening claw (1001) and the second fastening claw (1002), and the first fastening claw (1001) and the second fastening claw (1002) are both connected to the connecting piece (1003); the hub seat (1) is located between the first fastening claw (1001) and the second fastening claw (1002), and is arranged to abut against the first fastening claw (1001) and the second fastening claw (1002).

4. The static umbilical cable deepwater pressure test structure according to claim 3, characterized in that: The hub seat (1) is provided with a first slot (101), the first fastening claw (1001) and / or the second fastening claw (1002) is provided with a first insert block (1011), and the first insert block (1011) is inserted into the first slot (101).

5. The static umbilical cable deepwater pressure test structure according to claim 4, characterized in that: The first slot (101) is provided with a first inclined surface (111), and the first inclined surface (111) gradually inclines towards the central axis of the hub seat (1) from the test cap (9) to the hub seat (1).

6. The static umbilical cable deepwater pressure test structure according to claim 3, characterized in that: The first fastening claw (1001) and the second fastening claw (1002) are both provided with a sliding shaft (1004), and the connecting plate (6) is provided with a sliding groove (601) slidably connected to the sliding shaft (1004).

7. The static umbilical cable deepwater pressure test structure according to claim 6, characterized in that: A limit block (1005) is provided on the sliding shaft (1004); the limit block (1005) and the first fastening claw (1001) respectively abut against two sides of the connecting disk (6); and the limit block (1005) and the second fastening claw (1002) respectively abut against two sides of the connecting disk (6).

8. The static umbilical cable deepwater pressure test structure according to any one of claims 1 to 7, characterized in that: The test cap (9) further comprises a positioning key (15) and a positioning ring (16); the positioning key (15) is arranged along the radial direction of the test cap (9); the positioning key (15) is inserted into the test cap (9) and the connecting disk (6); the test cap (9) is provided with a positioning groove (902) in the circumferential direction; the positioning ring (16) is located in the positioning groove (902), and its two ends are respectively in contact with the test cap (9) and the connecting disk (6).

9. The static umbilical cable deepwater pressure test structure according to any one of claims 1 to 7, characterized in that: A locking assembly (17) is connected between the first mounting frame (4) and the second mounting frame (5).

10. The static umbilical cable deepwater pressure test structure according to claim 9, characterized in that: The locking assembly (17) comprises a first clamping member (171) and a second clamping member (172); the first clamping member (171) is rotatably connected to the first mounting frame (4); the second clamping member (172) is mounted on the second mounting frame (5); and the first clamping member (171) is clamped to the second clamping member (172).

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