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Centralizing and adjusting screw hinged connecting device

A technology for adjusting screw rods and connecting devices, which is applied in the direction of drill pipes, drilling equipment, boreholes/well components, etc., and can solve the problems of broken seal rings, hanger seal rings, and hangers that cannot be run straight. Avoid rework and ensure successful construction

Inactive Publication Date: 2019-06-21
西安瑞杰实业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hanger must pass through the blowout preventer during the lowering process. Due to the inclination of the derrick, the hanger cannot be lowered straightly, and the ram in the blowout preventer often hangs and damages the sealing ring on the hanger.
In order to solve the problem that the sealing ring of the hanger is broken during the lowering process, the oil pipe connected to the hanger is pushed by manpower from one side of the deflection to the other on site. The device is in the center, and the operator must look down close to the wellhead to observe, so as not to avoid sudden accidents, there are potential safety hazards

Method used

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  • Centralizing and adjusting screw hinged connecting device
  • Centralizing and adjusting screw hinged connecting device

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Embodiment Construction

[0011] see figure 1 , including lifting oil pipe 1, roller 2, wheel frame 3, bracket 4, seal ring 5, hanger 6, blowout preventer 7, connecting bolt 8, base 9, support rod 10, adjusting screw 11, support seat 13, seal ring 5 is installed on the hanger 6, the lower part of the lifting oil pipe 1 is connected with the hanger 6, the oil pipe in the well is connected under the hanger 6 and passes through the blowout preventer 7, the base 9 is fixed on the blowout preventer 7 by the connecting bolt 8, the base 9 There is a track groove 11, and there is a screw hole on the right side of the base 9. The internal thread of the screw hole is matched with the external thread of the adjusting screw 12, and the adjusting screw 12 passes through the screw hole on the right side of the base 9 and enters the track groove 11. , the support base 13 is sleeved on the left end of the adjusting screw rod 12, the support base 13 is in the track groove 11, the support base 13 can only walk and canno...

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Abstract

The invention discloses a centralizing and adjusting screw hinged connecting device which comprises a lifting oil pipe, a sealing ring, a hanger, a blowout preventer and a connecting bolt. The sealingring is mounted on the hanger, the lower part of the lifting oil pipe is connected with the hanger, and an in-well oil pipe is connected below the hanger. The centralizing and adjusting screw hingedconnecting device further comprises rollers, a wheel frame, a bracket, a base, a supporting rod, an adjusting screw and a supporting seat. According to the invention, by rotating the adjusting screw,the lifting oil pipe can be pushed to be positioned in the middle of the interior of the blowout preventer, when the hanger descends and passes through the blowout preventer, the hanger cannot make contact with a gate plate in the blowout preventer, a sealing ring on the hanger cannot be damaged by hanging, construction success is guaranteed, operation rework is avoided, the hanger can be straightened by rotating the adjusting screw, operation is easy, convenient and fast, time and labor are saved, an operator does not need to get close to a wellhead, and accidents cannot happen.

Description

technical field [0001] The invention relates to the technical field of oil drilling and production equipment, and relates to a hinged connection device for righting and adjusting screw rods. Background technique [0002] When operating oil and water wells in the oil field, a hanger must be lowered to hang the tubing in the well on the large cross of the wellhead device. The hanger also plays the role of sealing the oil casing so that the high-pressure liquid above the hanger cannot leak into the casing, so , there is a sealing ring on the hanger. The hanger has to pass through the blowout preventer during the lowering process. Due to the inclination of the derrick, the hanger cannot be lowered straightly, and the ram in the blowout preventer often hangs and damages the sealing ring on the hanger. In order to solve the problem that the sealing ring of the hanger is broken during the lowering process, the oil pipe connected to the hanger is pushed by manpower from one side of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/04E21B33/06E21B17/10
Inventor 曹雅丽
Owner 西安瑞杰实业股份有限公司
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