Offshore drilling and workover rig derrick escape landing platform

Abstract

The utility model discloses an escape landing platform for a derrick of an offshore drilling and workover rig, which comprises a landing platform, the landing platform is in a square plate shape, guardrails are arranged on the periphery of the upper surface of the landing platform, a guide rope stand column is arranged on the upper surface of the landing platform, and the guide rope stand column changes the sagging direction of a guide rope and guides escape personnel to land to a designated position. Platform stand columns are arranged at the four corners of the lower surface of the landing platform, a ladder is arranged on the landing platform in the direction towards the platform stand columns, and escape personnel can escape from the landing platform conveniently. The escape landing point is arranged according to the door opening position of the racking platform, the structure of the racking platform is prevented from being adjusted, and time and labor are saved. When in use, the device is supported at the top of equipment, does not occupy equipment space or a channel, can determine an escape landing point according to on-site actual conditions, and is high in flexibility. The guide rope is guided to a needed position through the guide rope stand column according to site conditions, interference with site operation is avoided, and the guide rope is far away from a well mouth.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical structures, in particular to an escape landing platform for a derrick of an offshore drilling and workover rig. Background Art

[0002] In recent years, with the continuous upgrading of marine oil safety risk management, the inherent safety level of offshore platforms has been continuously improved. At the same time, in order to meet the requirements of SY7028-2016 "Safety Specifications for Drilling and Workover Derrick Escape Devices", it is stipulated that drilling rigs and workover rig derricks must be equipped with at least one set of derrick escape devices.

[0003] According to standard classification, escape devices can be divided into inclined and vertical types. Among them, the inclined type requires a larger space and is generally not suitable for offshore platforms. Vertical escape methods are commonly used on offshore platforms.

[0004] At present, there are two situations for the derrick escape device installed on the offshore platform: one is that the landing point has been selected, but the position of the escape door on the second floor of the derrick is not suitable. If the position of the escape door on the second floor is modified, the main structure of the second floor needs to be adjusted, which has a greater impact on the derrick; the other is to use the escape door set on the second floor to escape, but equipment or other facilities have been arranged at the landing point, and there is no foothold. Given the compact space and dense equipment layout of the offshore platform, it is difficult to arrange the landing point for the derrick escape. Utility Model Content

[0005] The problem to be solved by the utility model is to provide an offshore drilling and workover rig derrick escape landing platform, which not only avoids the need to modify the main structure of the second-floor derrick, but also solves the problem of compact platform space and no landing point for escape personnel on the second-floor derrick, thereby providing effective protection for the safe production of the platform.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: an offshore drilling and workover rig derrick escape landing platform, including a landing platform, the landing platform is in the shape of a square plate, guardrails are arranged around the upper surface of the landing platform, guide rope columns are arranged on the upper surface of the landing platform, the guide rope columns change the downward direction of the guide rope, and guide the escapee to land to the designated position, platform columns are arranged at the four corners of the lower surface of the landing platform, and a ladder is arranged on the landing platform towards the platform column to facilitate the escapee to escape from the landing platform.

[0007] Furthermore, when escaping using the escape door on the second floor of the derrick, the landing platform is erected on top of the equipment already arranged at the landing point, forming a foothold on top of the arranged equipment, and the area of ​​the landing platform covers the area of ​​the arranged equipment at the landing point.

[0008] Furthermore, a plug-in sleeve is provided at the contact point between the landing platform and the guardrail, and a plug-in tube is provided at the bottom of the guardrail, and the plug-in tube is inserted into the plug-in sleeve to achieve a detachable connection between the guardrail and the landing platform.

[0009] Furthermore, a lower connecting pipe of a guide rope column is provided on the upper surface of the landing platform, a first flange is provided on the lower connecting pipe of the guide rope column, a second flange is provided on the bottom of the guide rope column, bolt holes are provided on the first flange and the second flange, the bolt holes of the first flange are aligned with the bolt holes of the second flange, the guide rope column and the lower connecting pipe of the guide rope column are fixed by bolts and nuts, so as to realize a detachable connection between the guide rope column and the landing platform.

[0010] Furthermore, a through hole is provided on the top of the guide rope column, and the guide rope passes through the through hole to change the downward direction of the guide rope.

[0011] Furthermore, the platform columns are telescopic rods.

[0012] Furthermore, a hook is provided on the top of the ladder, and a groove is provided on the top of the landing platform. The hook is placed in the groove to achieve a detachable connection between the ladder and the landing platform.

[0013] The advantages and positive effects of the utility model are:

[0014] The utility model sets the escape landing point according to the opening position of the second-floor platform, avoiding the adjustment of the second-floor platform structure caused by using the safety passage of the drilling platform as the escape landing point for the second-floor platform personnel, saving time and effort. When in use, the utility model is supported on the top of equipment or other facilities, does not occupy equipment space or passages, and can determine the escape landing point according to the actual situation on site, with strong flexibility. The guide rope is guided to the required position through the guide rope column according to the on-site situation, avoiding interference with on-site operations and staying away from the wellhead. The utility model has a simple structure and is easy to operate, and is suitable for promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0016] In the figure:

[0017] 1. Landing platform; 2. Platform column; 3. Guide rope column;

[0018] 4. Guardrail; 5. Ladder. DETAILED DESCRIPTION

[0019] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are 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, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0023] like Figure 1 As shown, an offshore drilling and workover rig derrick escape landing platform includes a landing platform 1, which is in the shape of a square plate. Guardrails 4 are arranged around the upper surface of the landing platform 1. Guide rope columns 3 are arranged on the upper surface of the landing platform 1. The guide rope columns 3 change the downward direction of the guide rope to guide the escapee to land at a designated position. Platform columns 2 are arranged at the four corners of the lower surface of the landing platform 1. A ladder 5 is arranged on the landing platform 1 toward the platform column 2 to facilitate the escapee to escape from the landing platform 1.

[0024] When in use, use the second-floor platform escape door to escape. When equipment or other facilities have been arranged at the landing point and there is no foothold, the landing platform 1 is set up on the top of the equipment arranged at the landing point to form a foothold on the top of the arranged equipment, which does not occupy the equipment space or channel and has strong flexibility. At this time, the area of ​​the landing platform 1 covers the area of ​​the equipment arranged at the landing point to avoid equipment damage. When in use, the landing platform 1 can be set to a rectangular, square, circular, elliptical or other shapes and sizes according to the specific situation to meet the use of different situations, and has a wide range of applications.

[0025] The guardrail 4 is a structure placed around the landing platform 1 to improve the safety of the escaped personnel. The guardrail 4 can be of various structures as long as it can achieve the above functions. Figure 1 As shown, the guardrail 4 provided in this embodiment is provided with an insert pipe at the bottom, and a plug sleeve is provided at the contact point between the landing platform 1 and the guardrail 4. The insert pipe is inserted into the plug sleeve to realize the detachable connection between the guardrail 4 and the landing platform 1.

[0026] The guide rope column 3 is a structure for changing the sagging direction of the guide rope. The guide rope column 3 can be of various structures as long as the above functions are achieved. Figure 1 As shown, the lower pipe of the guide rope column 3 is provided on the upper surface of the landing platform 1 provided in this embodiment, the lower pipe of the guide rope column 3 is provided with a first flange, the bottom of the guide rope column 3 is provided with a second flange, the first flange and the second flange are both provided with bolt holes, the bolt holes of the first flange are aligned with the bolt holes of the second flange, the guide rope column 3 and the lower pipe of the guide rope column 3 are fixed by bolts and nuts, so as to realize the detachable connection between the guide rope column 3 and the landing platform 1. Specifically, a through hole is provided on the top of the guide rope column 3, and the guide rope passes through the through hole to change the sagging direction of the guide rope.

[0027] The platform column 2 is a structure that supports the landing platform 1 so that the landing platform 1 is placed on the top of the arranged equipment. The platform column 2 can be of various structures as long as the above functions are achieved. Figure 1 As shown, the platform column 2 provided in this embodiment is a telescopic rod, and the length of the platform column 2 can be determined according to the escape landing position. When the escape landing position is located in the escape passage, the length is greater than 2m and does not affect the passage; when the escape landing position is located in the equipment area, the length of the platform column 2 can be adjusted according to the equipment height to ensure that the use of the equipment is not affected.

[0028] The ladder 5 is a device for escaping from the landing platform 1. The ladder 5 can be of various structures as long as it can achieve the above functions. Figure 1 As shown, the ladder 5 provided in this embodiment is provided with a hook on the top, and the landing platform 1 is provided with a groove on the top. The hook is placed in the groove to achieve a detachable connection between the ladder 5 and the landing platform 1.

[0029] The working principle of this embodiment is as follows:

[0030] When in use, the second-floor platform escape door is used for escape. When equipment or other facilities have been arranged at the landing point and there is no foothold, the landing platform 1 is set up on the top of the equipment or other facilities arranged at the landing point to form a foothold on the top of the arranged equipment or other facilities, without occupying equipment space or passages, and having strong flexibility. After the escapee descends to the landing platform 1 through the guide rope, he escapes from the landing platform 1 through the ladder 5, which has strong safety.

[0031] At the same time, the guardrail 4, guide rope column 3 and ladder 5 provided in this embodiment are detachable structures. After removing the above devices, this embodiment can be used as a material hoisting platform or for other functions. It has a wide range of applications and strong practicality.

[0032] The advantages and positive effects of the utility model are:

[0033] The utility model sets the escape landing point according to the opening position of the second-floor platform, avoiding the adjustment of the second-floor platform structure caused by using the safety passage of the drilling platform as the escape landing point for the second-floor platform personnel, saving time and effort. When in use, the utility model is supported on the top of equipment or other facilities, does not occupy equipment space or passages, and can determine the escape landing point according to the actual situation on site, with strong flexibility. The guide rope is guided to the required position through the guide rope column according to the on-site situation, avoiding interference with on-site operations and staying away from the wellhead. The utility model has a simple structure and is easy to operate, and is suitable for promotion and application.

[0034] The above is a detailed description of the embodiments of the utility model, but the contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. An offshore drilling and workover rig derrick escape landing platform, characterized in that: The utility model comprises a landing platform, which is in the shape of a square plate, and guardrails are arranged around the upper surface of the landing platform, and guide rope columns are arranged on the upper surface of the landing platform, and the guide rope columns change the downward direction of the guide rope to guide the escapee to land at a designated position, and platform columns are arranged at the four corners of the lower surface of the landing platform, and a ladder is arranged on the landing platform toward the direction of the platform columns, so as to facilitate the escapee to escape from the landing platform.

2. The offshore drilling and workover rig derrick escape landing platform according to claim 1, characterized in that: When escaping using the escape door on the second floor of the derrick, the landing platform is erected on top of the equipment arranged at the landing point to form a foothold on top of the arranged equipment, and the area of ​​the landing platform covers the area of ​​the arranged equipment at the landing point.

3. An offshore drilling and workover rig derrick escape landing platform according to claim 1 or 2, characterized in that: A plug-in sleeve is provided at the contact point between the landing platform and the guardrail, and a plug-in pipe is provided at the bottom of the guardrail. The plug-in pipe is inserted into the plug-in sleeve to realize the detachable connection between the guardrail and the landing platform.

4. An offshore drilling and workover rig derrick escape landing platform according to claim 1 or 2, characterized in that: The upper surface of the landing platform is provided with a lower connecting pipe of the guide rope column, the lower connecting pipe of the guide rope column is provided with a first flange, and the bottom of the guide rope column is provided with a second flange. The first flange and the second flange are both provided with bolt holes, and the bolt holes of the first flange are aligned with the bolt holes of the second flange. The guide rope column and the lower connecting pipe of the guide rope column are fixed by bolts and nuts to realize the detachable connection between the guide rope column and the landing platform.

5. The offshore drilling and workover rig derrick escape landing platform according to claim 4, characterized in that: A through hole is provided on the top of the guide rope column, and the guide rope passes through the through hole to change the sagging direction of the guide rope.

6. An offshore drilling and workover rig derrick escape landing platform according to claim 1 or 2, characterized in that: The platform columns are telescopic rods.

7. An offshore drilling and workover rig derrick escape landing platform according to claim 1 or 2, characterized in that: A hook is provided at the top of the ladder, and a groove is provided at the top of the landing platform. The hook is placed in the groove to achieve a detachable connection between the ladder and the landing platform.

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