發(fā)布時(shí)間：2018-06-05 19:11

  本文選題：鉆具缺陷 + 漏磁��； 參考：《東北石油大學(xué)》2015年碩士論文

【摘要】：在鉆探過程中需要對鉆具進(jìn)行階段性或臨時(shí)性現(xiàn)場探傷檢測,及早發(fā)現(xiàn)鉆具缺陷,以避免出現(xiàn)井下鉆具事故。但目前采用的檢測方式、技術(shù)能力不能滿足實(shí)際需求。常規(guī)鉆具缺陷的井口漏磁探傷設(shè)備是利用起下鉆作業(yè)的直線運(yùn)動(dòng)對鉆具進(jìn)行現(xiàn)場檢測,可以減少鉆具運(yùn)回車間檢測環(huán)節(jié),縮短檢測時(shí)間,能及時(shí)發(fā)現(xiàn)缺陷鉆具,避免繼續(xù)下井使用造成事故。本文通過對鉆具的失效情況的系統(tǒng)分析,總結(jié)歸納了各種鉆具的缺陷形式及缺陷產(chǎn)生的原因。調(diào)研了國內(nèi)外鉆具缺陷探傷的現(xiàn)狀。在此基礎(chǔ)上確定了常規(guī)鉆具缺陷井口漏磁探傷設(shè)備的結(jié)構(gòu)。提出了常規(guī)鉆具缺陷井口探傷檢測設(shè)備包含以下幾個(gè)基本組成部分:檢測系統(tǒng)、測控系統(tǒng)、行走系統(tǒng)。根據(jù)檢測設(shè)備的工作環(huán)境對各個(gè)系統(tǒng)的組成部分進(jìn)行研究,確定了各系統(tǒng)的組成部件。檢測系統(tǒng)主要包括探頭主體結(jié)構(gòu)以及保證檢測精度的鉆具起出除泥裝置,測控系統(tǒng)主要包括控制電路和微機(jī)控制系統(tǒng)。行走系統(tǒng)主要由井口運(yùn)移導(dǎo)軌、移動(dòng)底座組成。通過采用ANSYS分析軟件,采用有限元仿真設(shè)計(jì)進(jìn)行磁路設(shè)計(jì)和磁場分析,掌握磁性參數(shù)對探頭檢測靈敏度的影響規(guī)律,確定探頭幾何參數(shù)范圍;采用正交優(yōu)化實(shí)驗(yàn)進(jìn)行探頭結(jié)構(gòu)尺寸優(yōu)化,掌握結(jié)構(gòu)參數(shù)對檢測靈敏度的影響規(guī)律,確定探頭最終結(jié)構(gòu)尺寸。研制的常規(guī)鉆具缺陷的井口漏磁探傷設(shè)備實(shí)現(xiàn)了在鉆井現(xiàn)場對鉆具檢測的目的,為及早發(fā)現(xiàn)鉆具缺陷提供了一種有效的檢測技術(shù)手段。
[Abstract]:In order to avoid the downhole drilling accidents, it is necessary to carry out stage or temporary on-site flaw detection in drilling to detect the defects of drilling tools as early as possible. However, the current testing methods, technical capabilities can not meet the actual needs. The conventional wellhead magnetic leakage testing equipment for drilling tool defects is to make use of the straight line motion of the down-drilling operation to carry out on-site inspection of the drilling tool, which can reduce the inspection link of the drill tool back to the workshop, shorten the detection time, and find the defective drilling tool in time. Avoid accidents caused by the continued use of the well. Based on the systematic analysis of the failure of drilling tools, this paper summarizes the defect forms of various drilling tools and the causes of the defects. The present situation of drilling tool defect detection at home and abroad was investigated. On the basis of this, the structure of the conventional well head magnetic leakage detection equipment for drilling tool defects is determined. It is proposed that the conventional drilling tool defect detection equipment includes the following basic components: detection system, measurement and control system, and walking system. The components of each system are determined according to the working environment of the testing equipment. The detection system mainly includes the main structure of the probe and the mud removal device of the drill tool to ensure the detection accuracy. The measurement and control system mainly includes the control circuit and the microcomputer control system. The walking system is mainly composed of wellhead moving guide rail and moving base. The magnetic circuit design and magnetic field analysis are carried out by using ANSYS software and finite element simulation design. The influence of magnetic parameters on probe detection sensitivity is grasped and the range of probe geometric parameters is determined. The structure dimension of the probe was optimized by orthogonal optimization experiment. The influence of the structure parameters on the detection sensitivity was grasped and the final structure size of the probe was determined. The developed wellhead magnetic flux leakage flaw detection equipment for conventional drilling tool defects realizes the purpose of detecting drilling tools in the drilling field and provides an effective technical means for early detection of drilling tool defects.
【學(xué)位授予單位】：東北石油大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TE921.2

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 劉志河,張海濤,紹慶龍;RESEARCH AND PRACTICE ON NONDESTRUCTIVE FLAW DETECTION INSTALLATION FOR WIRE-CORE BELT[J];Journal of Coal Science & Engineering(China);1997年02期

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本文編號：1983112