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Pneumatic path drifting machine and drifting method

A borer and borer technology, applied in the direction of mechanical diameter measurement, etc., can solve the problems of high investment and maintenance costs, expensive air pumps, damaged air pumps, etc., and achieve the effects of wide diameter range, compact equipment structure, and improved work efficiency

Inactive Publication Date: 2006-08-30
XIAN HEAVY DUTY MACHINERY RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the pneumatic calibrating machine used by major domestic steel pipe factories basically relies on the positive and negative pressure generated by the air pump to pass the diameter. Its disadvantage is that it can only be passed from one end of the steel pipe, and the efficiency is low. It is easy to inhale dirt and damage the air pump when inhaling. , due to the high price of the air pump, the investment and maintenance costs are high, and it is only suitable for steel pipes with small diameters (φ60mm~φ273mm)

Method used

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  • Pneumatic path drifting machine and drifting method
  • Pneumatic path drifting machine and drifting method
  • Pneumatic path drifting machine and drifting method

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Embodiment Construction

[0026] like figure 1 As shown, it includes front diameter gun 2, rear diameter gun 7, mobile trolley 6, front gas storage tank 1, rear gas storage tank 8, pressing device 4 and platform 5, front diameter gun 2 and rear diameter gun The mandrel sleeve 10 is fixed in the barrel of the gun 7, and the inner diameter of the mandrel sleeve 10 is the same as the inner diameter of the pipe, and the center is consistent; diameter mandrel 3; the steel pipe 13 is placed on the stand 5, and is tightly connected to the outer diameter surface of the steel pipe 13 by the pressing device 4, and the front diameter gun 2 is connected to the left end face of the steel pipe 13; The right end faces of the steel pipes 13 are butt-connected; the front and rear diameter guns are connected to the air storage tank through pipelines, and the air storage tank is directly connected to the compressed air in the workshop. The front and back ends of the steel pipe 13 respectively have a bore gun, and the bo...

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Abstract

The invention relates to a testing device for petroleum steel tube. The feature is that it at least includes front diameter lance, back diameter lance, moving dolly, gas tank, clamping device and bench. A core rod sleeve is fixed in the tube of front diameter lance and back diameter lance. The inner diameter and the center of core rod sleeve is the same as that of tube. Diameter core rod is installed in the core rod sleeve in the tube of front diameter lance and back diameter lance. The steel tube is fixed on the bench and is clamped on the out surface of steel tube by clamping device. The front diameter lance is connected to the left end face and the back diameter lance is connected to the right end face. The two diameter lances are connected to gas tank through tube. The invention has advantages of simple structure, low cost, easy to maintain and wide suitable tube diameter range.

Description

technical field [0001] The invention belongs to a testing device for petroleum steel pipes, and is a pneumatic drilling machine and a drilling method for drilling oil pipes and casing pipes by using workshop compressed air as power to drive a drilling mandrel. Background technique [0002] Petroleum exploration and production often require drilling to a depth of tens of meters or even hundreds of meters. During this period, the detection of the condition of the underground oil layer is obtained from the center of the oil pipe, and even the detection instrument must go down to the oil layer from the oil pipe and casing. If the oil pipe, casing If the inner diameter or straightness of the pipe does not meet the standard, the detection instrument will be stuck in the tubing and casing, which may cause the entire oil well to be scrapped. This requires a device to screen out the steel pipes that do not meet the requirements in advance. The calibrating machine is devices with this...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/12
Inventor 卫凌云刘继高隋健王旭张建功杜学斌
Owner XIAN HEAVY DUTY MACHINERY RES INST
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