Oil derrick stress data acquisition system based on fiber Bragg grating sensor network

Abstract

The invention relates to an oil derrick stress data acquisition system based on a fiber Bragg grating sensor network, comprising an oil derrick stress strain field data test subsystem based on a distributed fiber Bragg grating sensor network, an oil derrick stress strain field data transmission and storage subsystem based on a serial port communication technology, and an oil well reliability evaluation subsystem based on OLE (Object Linkingand Embedding) technology and a Matlab calculation procedure. The three subsystems are connected with a fiber Bragg grating demodulator RS232 interface through an ADAM communication module by an industrial control computer; data in each channel in a fiber Bragg grating analyzer are read by adopting a Modbus communication protocol and an address distinguishing technology, and the field stress strain data arithmetic mean is filtered by the industrial control computer and then read into Access background database. The invention can rapidly and accurately evaluate the bearing capacity of land and ocean oil derricks and provide a great amount of full and accurate stress strain measurement data for the research and the evaluation of the safe and reliable operation of oil derricks.

Description

technical field [0001] The invention relates to an oil derrick stress data acquisition system, in particular to a stress measurement and data automatic acquisition system for an ocean drilling platform derrick and derrick rods. Background technique [0002] The oil derrick is mainly responsible for lifting and lowering the drill string, laying the crown block, hanging the traveling block, hook and oil pipe and other equipment. The derrick is an important part in the process of drilling and workover operations, and its safe and stable operation is directly related to the oil drilling rig system. Safe production and personal safety of employees. The design and construction of the oil derrick should comply with the requirements of API Spec4F. However, due to the large size of the derrick, the heavy load, the harsh working environment, and the influence of many factors in the process of transportation and disassembly, the derrick members, the connections between the members and ...

AI Technical Summary

Problems solved by technology

Due to the different storage formats of oil drilling stress test data files, numerical calculation software and data processing methods of test reports, it is impossible to compare the differences of test data of the same derrick at different times in a timely and intuitive manner. On-site oil derrick bearing capacity safety detection and evaluation technology and calculation software system

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