Indoor experimental device for antifriction resistance property of axial vibration of petroleum drilling pipe column

A technology of axial vibration and oil drilling, which is applied in the field of oil drilling pipe string mechanics research, can solve the problem of short length of simulated wellbore and drill string, without considering the impact of wellbore tortuosity, the influence of vibration drag reduction tool placement, insufficient Overcome problems such as end effect and achieve uniform loading effect

Active Publication Date: 2015-05-27
CHINA UNIV OF PETROLEUM (EAST CHINA)
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Problems solved by technology

The simulation process of this device has the following defects: (1) The length of the simulated wellbore and drill string of the experimental device is too short to overcome the influence of the e

Method used

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  • Indoor experimental device for antifriction resistance property of axial vibration of petroleum drilling pipe column
  • Indoor experimental device for antifriction resistance property of axial vibration of petroleum drilling pipe column
  • Indoor experimental device for antifriction resistance property of axial vibration of petroleum drilling pipe column

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Embodiment Construction

[0033] Such as figure 1 As shown in Fig. 1, an indoor experimental device for the axial vibration and anti-friction characteristics of an oil drilling string includes a simulated string combination system, a loading system, a vibration system, a measurement system and a fixing system. The simulated pipe string combination system includes a simulated pipe string 4 and a simulated wellbore 5 , and the simulated wellbore 5 is set on the outside of the simulated pipe string 4 . The loading system adopts a hand-operated screw-up loading device, which specifically includes a loading handwheel 1 and a loading screw 2. The loading screw 2 is connected to the left end of the simulated pipe string 4. The loading handwheel 1 is used to control the loading screw 2 to move along the simulated pipe. The axis of column 4 moves back and forth. The loading system can realize the uniform loading and unloading of simulated bit pressure. The vibration system includes a telescopic sleeve 11, a s...

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PUM

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Abstract

The invention discloses an indoor experimental device for antifriction resistance property of axial vibration of a petroleum drilling pipe column. The device comprises a simulated pipe column combination system, a loading system, a vibration system, a measurement system and a fixing system, wherein the simulated pipe column combination system comprises a simulated pipe column and a simulated shaft; the loading system comprises a loading hand wheel and a loading lead screw; the vibration system comprises a telescopic sleeve, a simulated vibration exciter and an impact baffle; the measurement system comprises pressure and displacement sensors, a data processing device, signal cables and a displacement sensor; the fixing system comprises a fixing bracket, fastening bolts, positioning bolts, a fixing piece, an experimental table and an open-groove bottom plate. The indoor experimental device can be used for researching the antifriction resistance property and mechanism of an axial vibration tool under the conditions of different wellbore curvatures, mounting positions, vibration amplitudes and frequencies, and provides a theoretical basis for design and field application of a special downhole tool for antifriction resistance of axial vibration.

Description

technical field [0001] The invention belongs to the field of oil drilling pipe string mechanics research, in particular to an indoor experimental device for axial vibration and friction reduction characteristics of oil drilling pipe strings. Background technique [0002] With the in-depth development of conventional oil and gas resources and the comprehensive development of unconventional oil and gas resources, the number of wells with complex structures such as highly deviated wells, horizontal wells, and multi-branch horizontal wells is increasing. During the drilling of these wells, especially during sliding drilling, due to factors such as the large contact surface between the pipe string and the well wall and the non-rotation of the pipe string, the friction between the pipe string and the well wall is very large, and the axial drilling pressure There are difficulties in down transmission and the drilling efficiency is reduced. And as the length of the horizontal secti...

Claims

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Application Information

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IPC IPC(8): G01M7/02
Inventor 史玉才管志川廖华林席传明耿志成
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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