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Turnover type offshore workover rig safety platform boss safety guardrail

A safety guardrail and flip-type technology, which is applied in the direction of wellbore/well components, earthwork drilling and production, etc., can solve the problems of no protection for gaps, monkey platform railings that need high-altitude operations, and no guardrails, etc., so as to reduce the risk factor of operation and quickly turn over , Improve the effect of safety

Inactive Publication Date: 2019-04-16
CHINA NAT OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing monkey platform only has guardrails on both sides, which are detachable guardrails, which have the following disadvantages: 1) After the second-story platform reaches the working position, the monkey platform railings need to be installed at heights; 2) the front of the monkey platform is in front of the tongue platform There is no guardrail, which does not meet the HSE requirements; 3) After the guardrail is removed, the gap between the monkey platform near the end of the aisle and the second-floor platform aisle has no protection

Method used

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  • Turnover type offshore workover rig safety platform boss safety guardrail
  • Turnover type offshore workover rig safety platform boss safety guardrail
  • Turnover type offshore workover rig safety platform boss safety guardrail

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Embodiment Construction

[0016] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0017] Such as Figure 1-3 As shown, the present invention discloses a reversible marine workover rig monkey platform safety guardrail, which includes guardrails 1 distributed in parallel on both sides of the monkey platform walkway, a transmission shaft 2 for transmission, a gear 3, and a transmission rack 4 and the cylinder 5; the bottom of the guardrail 1 is welded together with the transmission shaft 2, and the transmission shaft 2 is installed on the bottom of the monkey platform deck surface 6, and the gear 3 is connected with the transmission shaft 2 by a key, and the The gear 3 meshes with the transmission rack 4, and one end of the transmission rack 4 is provided with an articulated ring, which is connected with the cylinder pis...

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Abstract

The invention discloses a turnover type offshore workover rig safety platform boss safety guardrail. The guardrail comprises guardrail bodies distributed on the two sides of a safety platform boss walkway in parallel, transmission shafts, gears, transmission racks and air cylinders, wherein the transmission shafts, the gears, the transmission racks and the air cylinders are used for transmission;the bottom ends of the guardrail bodies are welded to the transmission shafts, the transmission shafts are arranged at the bottom of the deck surface of a safety platform boss, the gears are connectedwith the transmission shafts through keys, and the gears are meshed with the transmission racks; a hinging ring is arranged at one end of each transmission rack and connected with a piston rod of thecorresponding air cylinder through a pin shaft. The linear motion of the air cylinders is converted into the rotary motion of the transmission shafts through the gears and the transmission racks, theguardrail bodies gradually ascend along with the rotation of the transmission shafts until the guardrail bodies are perpendicular to the deck surface of the safety platform boss, and 90-degree turnover is achieved, so that the high-altitude operation risk of dismounting the safety platform boss guardrail at high altitude is avoided, and folding and recycling are achieved; quick turnover can be achieved, the work safety of derrick men can be improved, and the operation risk coefficient can be reduced.

Description

technical field [0001] The invention relates to the technical field of oil drilling and production equipment, in particular to a safety guardrail for a reversible marine workover rig monkey platform. Background technique [0002] Offshore workover rigs are necessary equipment for workover operations in offshore oil and gas fields. The monkey platform is used as the boss on the second floor of the offshore workover rig for derrick workers, and is an important part of the second floor of the derrick. During drilling and workover operations, the height of the monkey platform from the ground is more than 20 meters, and the operation on the monkey platform belongs to high-altitude operations. The existing monkey platform only has guardrails on both sides, which are detachable guardrails, which have the following disadvantages: 1) After the second-story platform reaches the working position, the monkey platform railings need to be installed at heights; 2) the front of the monkey p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B41/00
CPCE21B41/00
Inventor 张先喆李攀锋张国欣陈文林梁超王锐王永彪
Owner CHINA NAT OFFSHORE OIL CORP
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