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Device and method for monitoring penetration of marine petroleum pipe and pile hammering-in method

A monitoring device and penetration technology, applied in the field of offshore oil exploration and development, can solve problems such as large errors and uncertainties, affecting the accuracy of the bearing capacity of the pile body in the depth of the mud, so as to reduce the workload and save the marine life. Operating costs and the effect of simplifying operating procedures

Inactive Publication Date: 2010-12-29
CHINA UNIV OF PETROLEUM (BEIJING)
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AI Technical Summary

Problems solved by technology

Since the number of hammering is artificially counted based on the frequency of the pile hammer, there are large errors and uncertainties in this method, which will affect the accuracy of the depth of the pile and the bearing capacity.

Method used

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  • Device and method for monitoring penetration of marine petroleum pipe and pile hammering-in method
  • Device and method for monitoring penetration of marine petroleum pipe and pile hammering-in method
  • Device and method for monitoring penetration of marine petroleum pipe and pile hammering-in method

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Embodiment Construction

[0044] The specific implementation manner of the present invention will be further described in detail below in conjunction with the drawings and specific examples.

[0045]The invention proposes a penetration monitoring device for offshore oil pipes and pile hammer penetration methods. The pipe or pile includes a pile body and a piling cap installed on the top of the pile body. The monitoring device includes a penetration sensor and a computer control system. The penetration sensor is installed on the pile driving cap to record the penetration depth of the pile body, and the recorded data of the piling process is transmitted to the computer control system, and the recorded data is processed through the penetration control software program, and according to the processing As a result, it is automatically judged whether the reasonable penetration depth of the drilling pipe or pile has been reached, and the power switch of the hammer is controlled accordingly. The penetration of...

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Abstract

The invention discloses a device and a method for monitoring the penetration of a marine petroleum pipe and pile hammering-in method. The pipe or pile comprises a pile body and a pile follower arranged at the top of the pile body. The monitoring device comprises a penetration sensor and a computer control system, wherein the penetration sensor is arranged on the pile follower and used for recording the penetration depth of the pile body; piling process data recorded by the penetration sensor is transmitted to the computer control system and processed through a penetration control software program; and the program can automatically judge whether a reasonable penetration depth of the drilling pipe or pile is reached or not according to a processing result, and a hammering power switch is controlled according to a judging result. The invention can be used for scientifically monitoring the penetration depth in real time, guiding a marine piling construction process and reducing marine accidents caused by improper piling of a drilling riser.

Description

technical field [0001] The present invention relates to an offshore oil exploration and development technology, in particular to a monitoring device and monitoring method for offshore oil pipe and pile hammering method penetration control for solving the real-time monitoring of the penetration degree of offshore drilling pipe pile hammering method . Background technique [0002] In the exploration of offshore oil, the application of hammering piling technology is more common, and this technology often uses the control of penetration (number of rejected hammers) as the condition for the end of the piling process. At present, in the actual construction process, the relationship between the change value of the pile top elevation and the number of hammering within a certain period of time is used as the judgment standard for controlling the penetration. Since the number of hammer blows is artificially counted based on the frequency of the pile hammer, there are large errors and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/04E21B47/12G01B21/18
Inventor 杨进刘书杰姜伟谢仁军谢梅波
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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