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Stepping type self-balancing derrick workover rig

A step-by-step, self-balancing technology, used in drilling equipment, earth-moving drilling, support devices, etc., can solve the problems of narrow space, small well spacing, affecting operation timeliness, etc., and achieve convenient movement, compact structure and high operation efficiency. Effect

Active Publication Date: 2017-05-10
天时集团能源有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cluster well groups currently put into development all have the characteristics of narrow space and small well spacing. It is difficult for conventional land workover equipment to turn and align wellheads on such well groups.
The derricks of the workover rigs currently in use are all inclined derricks, and the number of ropes at the front and rear of the derrick is different. During operation, the derrick inevitably bears the front overturning moment. Therefore, it is necessary to use outer stay ropes during operation, which affects the operation timeliness

Method used

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] The stepping self-balancing derrick workover rig is composed of a stepping flat car and a top loading operation part.

[0018] The stepping flat car is composed of a long walking boat 14, a short walking boat 1 and a pressure-bearing platform 4. The pressure-bearing platform 4 and the long walking boat 14 are connected together by a lifting cylinder 11, which can be adjusted by the telescopic adjustment of the lifting cylinder 11 during operation. Workover rig balance. The short boat 1 and the pressure platform 4 are connected by a rotating shaft 24, and the short boat 1 and the pressure platform 4 can slide or rotate relative to each other. Two walking dollies 3, two walking tracks 2 and a walking oil cylinder 16 are all housed in the walking short boat 1 and the walking long boat 14. One end of the walking oil cylinder 16 is connected with one of the walking...

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Abstract

The invention provides a stepping type self-balancing derrick workover rig which comprises a stepping type flat car and an upper mounted work part assembly mounted on the stepping type flat car. The stepping type flat car is composed of a walking long ship, a walking short ship and a bearing platform. The bearing platform and the walking long ship are connected together through a lifting oil cylinder, the balance of the workover rig can be adjusted through stretching and contraction of the lifting oil cylinder during working, the walking short ship and the bearing platform are connected through a rotary shaft, and longitudinal and transverse walking and rotation of equipment can be achieved by operation an operation valve mounted in an operation valve box of the bearing platform. The stepping type self-balancing derrick workover rig has the advantages that the energy-saving environment-friendly workover rig is high in working efficiency, compact in structure and convenient to move.

Description

technical field [0001] The invention relates to the field of a derrick workover machine, in particular to a step-by-step self-balancing derrick workover machine. Background technique [0002] With the intensification of offshore oil exploration and development, the exploration and development of beach oil occupies an important position in domestic oil production, especially in the coastal area of ​​Bohai Bay where newly discovered reserves are increasing day by day. A certain scale of reserves has been discovered in the West Oil Production Plant, Zhaodong in Dagang, Chenghai 1st District, Chenghai 2nd District, Binhai, Xingang, and Nanpu Oilfield in Eastern Jidong, Liaohe Beach, etc. Put into development. For example, the L16 platform of Shengli Oilfield developed a total of 68 oil and water wells, and Liaohe built three artificial islands A, B, and C in Yuedong Oilfield, Bohai Bay, and drilled more than 130 oil and water wells. The exploration and development of offshore ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B15/00E21B19/14E21B19/00
CPCE21B15/003E21B19/00E21B19/14
Inventor 袁谋程立国侯尚林张洪生曲海峰董振高王志国张振军王仁海孙立超高煜冉菁菁王生兰董方杰王连中
Owner 天时集团能源有限公司
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