A portable Christmas tree docking station and method of use

Abstract

The application provides a portable Christmas tree parking socket and a use method thereof. An insertion section is integrally arranged at the tail end of a parking socket guide groove. An insertion groove is formed on the outer wall of the insertion section. The parking socket body adopts a hollow tubular structure. The head end of the parking socket body is an open end. The tail end of the parking socket body is a closed end. An insertion boss matched with the insertion groove is formed on the inner wall of the open end, so as to connect the tail end of the parking socket guide groove with the head end of the parking socket body. A through hole is arranged at the closed end. A circular clamp is installed on the middle part of the outer wall of the parking socket body. Fixed steel plates are integrally arranged at the head and tail ends of the circular clamp respectively. Fixed bolts penetrate the fixed steel plates, so as to fix and connect the circular clamp. The Christmas tree parking socket has the functions of portability, light weight, protection of the plug, and convenience of plug insertion and extraction. The tool can be taken and used at any time, is convenient to assemble, and is beneficial to the underwater robot to quickly complete the operation requirements.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of oil and gas and drilling engineering, and more particularly to a portable Christmas tree docking socket and a method of use thereof. BACKGROUND

[0002] In the exploration, development and adjustment projects of the oil industry, the underwater Christmas tree is an indispensable part of any subsea system, and has a higher working pressure than the surface Christmas tree and uses electric and hydraulic control. The cable plug cannot be placed on the seabed to prevent seawater corrosion, and the underwater Christmas tree body panel is provided with a docking socket for the cable plug, but the area of the Christmas tree panel is limited and insufficient to place all the cable plugs.

[0003] Currently, in the oil drilling industry, only the fixed docking socket located on the Christmas tree panel can prevent the cable plug during underwater well repair and well adjustment operations, but only 1-2 cable plugs can be placed, and the following four disadvantages exist when using the fixed docking socket during the operation:

[0004] 1. The fixed docking socket has high maintenance cost in the later stage, the corrosion rate of marine organisms is fast, and it is not convenient to disassemble the seabed after damage;

[0005] 2. The material of the fixed docking socket is the same as that of the Christmas tree panel, and the corrosion rate of the newly processed docking socket or the Christmas tree body is fast after reinstallation due to electrochemical corrosion;

[0006] 3. The fixed docking socket has high weight and high processing precision, and attention should be paid to protection during transportation;

[0007] 4. The number of fixed docking sockets on the Christmas tree body is limited and cannot accommodate all the pulled out electric and hydraulic plugs. SUMMARY

[0008] The present application overcomes the deficiencies in the prior art, the existing fixed docking socket has the problems of difficult replacement, inconvenient assembly, large size and heavy weight, and provides a portable Christmas tree docking socket and a method of use thereof. The Christmas tree docking socket has the functions of portability, light weight, plug protection and convenient plug insertion and removal. In subsequent drilling and well repair operations, the tool is taken and used as needed, is convenient to assemble, and is beneficial to the rapid completion of the operation requirements by the underwater robot. The body material of the Christmas tree docking socket is corrosion resistant, has geometric stability and impact resistance, and is suitable for long-term retention on the seabed.

[0009] The object of the present application is achieved by the following technical solutions.

[0010] The utility model provides a portable Christmas tree parking socket, including parking socket guide slot, parking socket body, round card, fixed steel sheet and fixed bolt, the parking socket guide slot adopts the hollow cone structure of inverting, and the tail end of parking socket guide slot is integrally provided with a spigot section, and the outer wall of spigot section forms spigot recess, the parking socket body adopts the hollow tubular structure, and the first end of parking socket body is an open end, and the tail end of parking socket body is a closed end, and the inner wall of open end forms spigot boss matched with spigot recess to connect the tail end of parking socket guide slot with the first end of parking socket body, and the closed end is provided with through -hole, and the outer wall middle part of parking socket body is installed round card, and the first end and the tail end of round card are integrally provided with fixed steel sheet respectively, and fixed bolt penetrates fixed steel sheet and connects round card fixedly.

[0011] The inner wall of round card and the outer wall of parking socket body are provided with parking socket rubber sheath, and the parking socket rubber sheath is used to increase the friction between round card and parking socket body.

[0012] The thickness of parking socket rubber sheath is greater than or equal to the distance between the outer wall of parking socket body and the inner wall of round card, and the length of parking socket rubber sheath is greater than or equal to the length of round card and less than or equal to the length of parking socket body.

[0013] The round card is composed of two semicircle structures, the fixed steel sheet is integrally arranged at the first end and the tail end of the semicircle structure, the inner diameter of the round card is 0.25 m, and the wall thickness of the round card is 0.02 m.

[0014] The underwater robot handle is arranged on the outer wall of the semicircle structure, and the underwater robot handle is made of three solid pipe bodies connected, the length of each solid pipe body is 0.3 m, 0.2 m and 0.3 m in sequence, and the outer wall of each solid pipe body is uniformly provided with anti-skid threads.

[0015] The height of the parking socket guide slot is 0.2-0.3 m, the length of the spigot section is 0.1 m, the inner diameter and the outer diameter of the spigot section are equal to the inner diameter and the outer diameter of the parking socket body, the wall thickness of 0.01 m is removed from the outer wall of the spigot section to form the spigot recess, and two spigot recesses are formed on the outer wall of the spigot section, and the distance of each spigot recess from the tail end of the parking socket guide slot is 0.04 m and 0.08 m respectively.

[0016] The height of the parking socket body is 0.4-0.5m, the inner diameter of the parking socket body is 0.25m, the wall thickness of the parking socket body is 0.02m, 0.1m in length and 0.01m in wall thickness are shaved from the inner wall of the open end to form a plug-in boss, and two plug-in bosses are formed on the inner wall of the open end, and the distance from the first end of the parking socket body is 0.04m and 0.08m respectively.

[0017] The length of the fixed steel plate is 0.1m, and the height of the fixed steel plate is 0.1m.

[0018] A use method of the portable Christmas tree parking socket, after the portable Christmas tree parking socket is assembled on site, it is hung and lowered to the vicinity of the underwater Christmas tree by the underwater robot, in the well abandonment operation, the underwater robot first takes the portable Christmas tree parking socket placed on the seabed, then pulls out the cable connector on the underwater Christmas tree cap, inserts the cable connector into the portable Christmas tree parking socket and places it near the underwater Christmas tree, waits until the operation is completed, the underwater robot takes out the cable connector and inserts it into the original position, then recovers the portable Christmas tree parking socket and brings it out of the water, and the portable Christmas tree parking socket is disassembled on the platform while being rusted and painted to be properly preserved.

[0019] The beneficial effects of the present application are that the Christmas tree parking socket has the functions of portability, light weight, protection of the plug, and easy plug-in and plug-out; in subsequent drilling and workover operations, the tool is taken and used at any time, which is convenient for assembly and beneficial for the underwater robot to quickly complete the operation requirements; the body material of the Christmas tree parking socket is corrosion-resistant, has geometric stability and impact resistance, and is suitable for long-term retention on the seabed. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic diagram of the present application;

[0021] Figure 2 is a sectional view of the Christmas tree body and the Christmas tree guide groove in the present application;

[0022] Figure 3 is a top view structural schematic diagram of the present application;

[0023] In the figure: 1 is a parking socket guide groove, 2 is a parking socket body, 3 is a parking socket rubber jacket, 4 is a round clamp, 5 is an underwater robot handle, 6 is a fixed steel plate, and 7 is a fixed bolt;

[0024] For ordinary skilled persons in the art, other related drawings can be obtained according to the above drawings without creative labor. DETAILED DESCRIPTION

[0025] The technical solutions of the present application are further described below through specific examples.

[0026] Example One

[0027] The portable Christmas tree docking socket comprises a docking socket guide slot 1, a docking socket body 2, a circular clamp 4, a fixed steel plate 6 and a fixed bolt 7. The docking socket guide slot 1 adopts an inverted hollow conical structure, and an insertion section is integrally arranged at the tail end of the docking socket guide slot 1. An insertion groove is formed on the outer wall of the insertion section. The docking socket body 2 adopts a hollow tubular structure. The head end of the docking socket body 2 is an open end, and the tail end of the docking socket body is a closed end. An insertion boss matched with the insertion groove is formed on the inner wall of the open end, so as to realize the connection between the tail end of the docking socket guide slot 1 and the head end of the docking socket body 2. A through hole is arranged at the closed end. The circular clamp 4 is installed on the outer wall of the docking socket body 2. The fixed steel plate 6 is integrally arranged at the head and tail ends of the circular clamp 4. The fixed bolt 7 penetrates the fixed steel plate 6, so as to fix and connect the circular clamp 4.

[0028] Example Two

[0029] On the basis of example one, the docking socket rubber jacket 3 is arranged between the inner wall of the circular clamp 4 and the outer wall of the docking socket body 2. The docking socket rubber jacket 3 is used to increase the friction between the circular clamp 4 and the docking socket body 2.

[0030] The thickness of the docking socket rubber jacket 3 is greater than or equal to the distance between the outer wall of the docking socket body 2 and the inner wall of the circular clamp 4. The length of the docking socket rubber jacket 3 is greater than or equal to the length of the circular clamp 4 and less than or equal to the length of the docking socket body 2.

[0031] The circular clamp 4 is composed of two semicircular structures. The fixed steel plate 6 is integrally arranged at the head and tail ends of the semicircular structures. The length of the circular clamp 4 is 0.1 m. The inner diameter of the circular clamp 4 is 0.25 m. The wall thickness of the circular clamp 4 is 0.02 m.

[0032] The underwater robot handle 5 is arranged on the outer wall of the semicircular structure. The underwater robot handle 5 is made of three solid pipe bodies. The lengths of the three solid pipe bodies are 0.3 m, 0.2 m and 0.3 m in sequence. Anti-skid threads are uniformly arranged on the outer wall of each solid pipe body.

[0033] Example Three

[0034] On the basis of embodiment two, the height of the docking socket guide groove 1 is 0.2-0.3m, the length of the plug-in section is 0.1m, the inner diameter and outer diameter of the plug-in section are equal to the inner diameter and outer diameter of the docking socket body 2, 0.01m of wall thickness is shaved off the outer wall of the plug-in section to form the plug-in groove, two plug-in grooves are formed on the outer wall of the plug-in section, and the distance from the tail end of the docking socket guide groove 1 to each of the two plug-in grooves is 0.04m and 0.08m respectively.

[0035] The height of the docking socket body 2 is 0.4-0.5m, the inner diameter of the docking socket body 2 is 0.25m, and the wall thickness of the docking socket body 2 is 0.02m. 0.1m of length and 0.01m of wall thickness are shaved off the inner wall of the open end to form the plug-in boss, and two plug-in bosses are formed on the inner wall of the open end, and the distance from the head end of the docking socket body 2 to each of the two plug-in bosses is 0.04m and 0.08m respectively.

[0036] The length of the fixed steel plate 6 is 0.1m, the width of the fixed steel plate 6 is 0.02m, and the height of the fixed steel plate 6 is 0.1m.

[0037] Embodiment four

[0038] A use method of a portable Christmas tree docking socket, after the portable Christmas tree docking socket is assembled on site, it is hung and lowered to the vicinity of the underwater Christmas tree by the underwater robot. In the well abandonment operation, the underwater robot first picks up the portable Christmas tree docking socket placed on the seabed, then pulls out the cable connector on the underwater Christmas tree cap, at the same time inserts the cable connector into the portable Christmas tree docking socket and places it near the underwater Christmas tree, waits until the completion of the well completion operation, the underwater robot can pick up the portable Christmas tree docking socket, pull out the connector and insert it into the original position, then recycle the portable Christmas tree docking socket and take it out of the water, disassemble the portable Christmas tree docking socket on the platform and carry out rust removal and painting to keep it well.

[0039] For ease of description, spatial relative terms such as "upper", "lower", "left", "right" and the like are used in the embodiments to describe one element or feature's relationship to another element or feature as illustrated in the drawings. It should be understood that the spatial terms are intended to include different orientations of the device in use or operation, in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned over, an element that is denoted as being "below" other elements or features would then be oriented "above" the other elements or features. Therefore, the exemplary term "below" can encompass both an upper and lower orientation. The device can be oriented in other ways (rotated 90 degrees or oriented in other orientations), and the spatial relative descriptions used herein can be interpreted accordingly.

[0040] Also, the relational terms, such as first and second, and the like, are used solely to distinguish one from another entity without necessarily requiring or implying any actual relationship or order between such entities.

[0041] The above description is merely that of the preferred embodiments of the application and is not to be taken in a limiting sense. All equivalent changes and modifications in the number of steps and details of the elements can be made within the scope of the application defined by the appended claims.

Claims

1. A portable tree trunk docking socket, characterized in that: The device includes a parking socket guide groove, a parking socket body, a circular clip, a fixing steel plate, and fixing bolts. The parking socket guide groove adopts an inverted hollow conical structure. A plug-in section is integrally provided at the tail end of the parking socket guide groove, and a plug-in groove is formed on the outer wall of the plug-in section. The parking socket body adopts a hollow tubular structure. The head end of the parking socket body is an open end, and the tail end of the parking socket body is a closed end. A plug-in boss that mates with the plug-in groove is formed on the inner wall of the open end to connect the tail end of the parking socket guide groove to the head end of the parking socket body. A through hole is provided at the closed end. The circular clip is installed in the middle of the outer wall of the parking socket body. The fixing steel plate is integrally provided at both ends of the circular clip. The fixing bolts pass through the fixing steel plates to fix the circular clips together. The circular clamp consists of two semi-circular structures. The fixing steel plate is integrally set at both ends of the semi-circular structure. The inner diameter of the circular clamp is 0.25m and the wall thickness is 0.02m. An underwater robot handle is set on the middle of the outer wall of the semi-circular structure. The underwater robot handle is made of three solid tubes connected together. The lengths of each solid tube are 0.3m, 0.2m, and 0.3m respectively. Anti-slip threads are evenly provided on the outer wall of each solid tube.

2. The portable tree trunk docking socket according to claim 1, characterized in that: A rubber sleeve for the docking socket is provided between the inner wall of the circular clip and the outer wall of the docking socket body. The rubber sleeve for the docking socket is used to increase the friction between the circular clip and the docking socket body.

3. A portable tree trunk docking socket according to claim 2, characterized in that: The thickness of the rubber sleeve of the docking socket is greater than or equal to the distance between the outer wall of the docking socket body and the inner wall of the circular clip, and the length of the rubber sleeve of the docking socket is greater than or equal to the length of the circular clip and less than or equal to the length of the docking socket body.

4. A portable tree trunk docking socket according to claim 1, characterized in that: The height of the guide groove of the docking socket is 0.2-0.3m, the length of the plug-in section is 0.1m, and the inner and outer diameters of the plug-in section are equal to the inner and outer diameters of the docking socket body. A wall thickness of 0.01m is removed from the outer wall of the plug-in section to form a plug-in groove. Two plug-in grooves are formed on the outer wall of the plug-in section, and the distances of each plug-in groove from the end of the guide groove of the docking socket are 0.04m and 0.08m, respectively.

5. A portable tree trunk docking socket according to claim 4, characterized in that: The height of the docking socket body is 0.4-0.5m, the inner diameter of the docking socket body is 0.25m, and the wall thickness of the docking socket body is 0.02m. A length of 0.1m and a wall thickness of 0.01m are planed off from the inner wall of the open end to form a plug-in boss. Two plug-in bosses are formed on the inner wall of the open end. The distances of each plug-in boss from the beginning of the docking socket body are 0.04m and 0.08m, respectively.

6. A portable tree trunk docking socket according to claim 1, characterized in that: The length of the fixing steel plate is 0.1m and the height of the fixing steel plate is 0.1m.

7. A method of using a portable wellhead docking socket as described in any one of claims 1-6, characterized in that, After the portable wellhead docking socket is assembled on-site, it is mounted and lowered to the vicinity of the underwater wellhead by an underwater robot. During well abandonment operations, the underwater robot first picks up the portable wellhead docking socket placed on the seabed, then unplugs the cable connector from the underwater wellhead cap, inserts the cable connector into the portable wellhead docking socket, and places it near the underwater wellhead. When the operation is finished, the underwater robot picks up the portable wellhead docking socket, unplugs the cable connector, inserts it back into its original position, and then retrieves the portable wellhead docking socket and brings it to the surface. On the platform, the portable wellhead docking socket is disassembled, rust removed, painted, and properly stored.

Images