本文選題：鉆桿 + 管端加厚��； 參考：《西安石油大學(xué)》2015年碩士論文

【摘要】：非開挖鉆桿作為工程用坑道鉆機(jī)的重要零部件之一,在油氣長輸管線的敷設(shè)中發(fā)揮著不可或缺的作為。隨著施工難度和鉆機(jī)噸位的增加,對所需用的鉆桿質(zhì)量的要求也大大提高,數(shù)據(jù)表明,鉆桿的機(jī)械性能和生產(chǎn)鉆桿的工藝有著密不可分的關(guān)系,因此,對鉆桿質(zhì)量控制的關(guān)鍵技術(shù)進(jìn)行深入研究具有重要的理論和實踐意義。本文以API Spec 5D《鉆桿規(guī)范》為標(biāo)準(zhǔn),分別以鉆桿生產(chǎn)中的管端加厚、管體熱處理、螺紋表面硬化處理以及摩擦焊接工藝作為研究對象,進(jìn)行了如下的研究：(1)分三部分對鉆桿管端加厚成形技術(shù)進(jìn)行了研究,分別是：鉆桿管端加厚的原理及研究現(xiàn)狀、影響鉆桿管端加厚成形的工藝因素分析、鉆桿常見缺陷及原因。對鉆桿管端加厚成形技術(shù)作了一個整體的理論分析。并以Φ127x9.19mm的鉆桿IEU加厚方式為例,做了管端加厚工藝實現(xiàn)。結(jié)果顯示：新工藝滿足規(guī)范要求,經(jīng)過加厚處理的鉆桿合格。(2)從對鉆桿進(jìn)行熱處理的目的和意義入手整體鉆桿熱處理參數(shù)優(yōu)化的研究,對鋼的熱處理工藝進(jìn)行了闡述,以及對鉆桿進(jìn)行熱處理時的工藝參數(shù)予以研究確認(rèn),最后以26CrMnMo鉆桿為例,對其具體的熱處理過程在分析的基礎(chǔ)上做以工藝實現(xiàn)。機(jī)械性能檢驗結(jié)果顯示：經(jīng)過熱處理后的鉆桿管端和管體硬度、耐磨性、抗疲勞性均合格。(3)利用激光表面硬化處理的方式,對鉆桿的螺紋表面進(jìn)行了淬火處理,并對處理后和經(jīng)過傳統(tǒng)液體氮化處理的同型號鉆桿分別在表面硬度、淬火層深度、耐磨性、抗疲勞性等機(jī)械性能做了比較分析,結(jié)果顯示：經(jīng)過激光表面硬化處理的鉆桿螺紋機(jī)械性能整體優(yōu)于經(jīng)過液體氮化處理的螺紋機(jī)械性能。從而得出此激光表面硬化處理方式在鉆桿螺紋表面硬化處理的應(yīng)用是成功的。(4)由于摩擦焊接技術(shù)已經(jīng)廣泛的應(yīng)用于鉆桿的生產(chǎn)制造,因此在這一章簡要介紹了摩擦焊接工藝及其后續(xù)處理,并以其工藝為主要敘述點(diǎn),具體介紹了工具接頭和管端的焊前預(yù)處理,以及摩擦焊接的基本過程,并對焊接參數(shù)做了計算。
[Abstract]:As one of the important parts of engineering tunnel drilling rig, non-excavated drill pipe plays an indispensable role in the laying of oil and gas pipeline. With the increase of the construction difficulty and the tonnage of drilling rig, the requirement of drill pipe quality is greatly increased. The data show that the mechanical properties of drill pipe are closely related to the technology of producing drill pipe. It is of great theoretical and practical significance to study the key technology of drill pipe quality control. In this paper, API Spec 5D drill pipe specification is taken as the standard, the pipe end thickening, pipe body heat treatment, thread surface hardening treatment and friction welding process are taken as the research objects, respectively, in the production of drill pipe. In this paper, the following three parts are carried out to study the forming technology of drill pipe end thickening: the principle and research status of drill pipe end thickening, the analysis of technological factors affecting the drill pipe end thickening forming, the common defects and reasons of drill pipe end thickening. The forming technology of drill pipe end thickening is analyzed in this paper. Taking the IEU thickening method of 桅 127x9.19mm drill pipe as an example, the pipe end thickening process is made. The results show that the new technology meets the requirements of the specification, and the thickened drill pipe is qualified. The optimization of the heat treatment parameters of the whole drill pipe is studied based on the purpose and significance of the heat treatment of the drill pipe, and the heat treatment process of the steel is expounded. The process parameters of drill pipe heat treatment are studied and confirmed. Finally, taking 26CrMnMo drill pipe as an example, the concrete heat treatment process is realized on the basis of analysis. The results of mechanical property test show that the hardness, wear resistance and fatigue resistance of drill pipe end and tube body after heat treatment are up to standard. 3) the threaded surface of drill pipe has been quenched by laser surface hardening treatment. The mechanical properties such as surface hardness, depth of quenching layer, wear resistance and fatigue resistance of the same type of drill pipe treated with conventional liquid nitridation were compared and analyzed. The results show that the mechanical properties of drill pipe thread treated by laser surface hardening are better than that of the thread treated by liquid nitriding. Therefore, it is concluded that the application of laser surface hardening treatment in drilling pipe thread surface hardening treatment is successful because friction welding technology has been widely used in the production and manufacture of drill pipe. Therefore, in this chapter, the friction welding process and its subsequent treatment are briefly introduced. The preprocessing of tool joints and pipe ends and the basic process of friction welding are introduced in detail, taking the process of friction welding as the main narration point. The welding parameters are calculated.
【學(xué)位授予單位】：西安石油大學(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 譚淑梅;;石油鉆桿接頭熱處理工藝[J];油氣田地面工程;2007年01期

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本文編號：1947935