Well drilling top drive sliding fastening-change head

A buckle head and top drive technology, applied in the field of variable buckle head, can solve the problems of cumbersome operation and complex structure, and achieve the effects of simple mechanism and operation, weight reduction and protection of drilling tools

Inactive Publication Date: 2007-11-28
HEILONGJIANG JINGHONG PETROLEUM EQUIP MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of complex structure and cumbersome operation of the existing top drive shackles and dri

Method used

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  • Well drilling top drive sliding fastening-change head
  • Well drilling top drive sliding fastening-change head

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0009] The present invention will be further described below in conjunction with accompanying drawing:

[0010] As shown in Fig. 1 combined with Fig. 2, the sliding variable button head of the drilling top drive includes a manual blowout preventer 1, and there is an annular step 2 outside the lower end of the manual blowout preventer 1, and a storage chamber is formed by the annular step 2 and the upper end of the variable button head 4 , the drilling fluid with a certain pressure is stored in the storage cavity, which plays a role of damping; the lower end of the manual blowout preventer 1 is connected with a sliding sleeve 3, and the lower step hole of the sliding sleeve 3 is connected with a variable button 4 through a spline, that is, The torque is transmitted to the variable button head 4 through the spline, and the variable button head 4 can be moved up and down through the spline. When loading and unloading the drill pipe, the weight on the variable button head 4 will be...

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PUM

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Abstract

The invention relates to a top drive sliding variable end bending of drilling well, which mainly solves the problem that structures of top drive variable end bending and drilling bar shackle are complicated and fussy. It is characterized in that it comprises manual preventer (1); ring step is set at the lower end of manual preventer (1); sliding sleeve (3) is connected with the lower end of manual preventer (1); variable end bending (4) is connected in the step hole under the sliding sleeve (3) by spline; sealing ring (5) is set in the ring concave groove at the upper part of spline of variable end bending (4); sealing ring (5) is set in the ring concave groove in the hole at the lower end of sliding sleeve (2). The invention is provided with simple structure, simple operation and damping action.

Description

Technical field: [0001] The invention relates to a variable button used for top drive drilling rigs in the field of oil field drilling, in particular to a sliding variable button for top drive drilling. Background technique: [0002] With the increase of deep wells, ultra-deep wells and complex wells in the process of oil and gas exploration and development, the demand for top drive drilling rigs in my country is becoming more and more urgent, especially for foreign bidding projects, it is almost impossible to win the bid without a drilling rig equipped with top drive . Top drives are now standard equipment on drilling rigs. The top drive device is a drilling device that directly drives the drilling tool from the top of the derrick for rotary drilling, and can complete various drilling operations such as circulating drilling fluid, connecting vertical roots, making up and breaking out, and back reaming. It can improve drilling efficiency, greatly reduce pipe sticking accide...

Claims

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Application Information

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IPC IPC(8): E21B3/02
Inventor 张宝有
Owner HEILONGJIANG JINGHONG PETROLEUM EQUIP MFG
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