本文關(guān)鍵詞： 優(yōu)化 有桿抽油 油桿 油管 程序設(shè)計(jì)　出處：《長(zhǎng)江大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：在油井開采過程中,由于生產(chǎn)桿管(包括油桿、油管)受各種載荷的作用并承受著復(fù)雜的工作環(huán)境如地下流體的腐蝕性等,這些情況都極容易造成生產(chǎn)桿管的失效。桿管失效包括抽油桿的斷裂或斷脫、油管的脫扣、桿管的腐蝕、桿管的偏磨等一系列對(duì)油氣開采不利的現(xiàn)象,這些現(xiàn)象會(huì)導(dǎo)致油桿、油管的壽命降低。生產(chǎn)桿管的失效或提早報(bào)廢不僅嚴(yán)重影響到了油井的產(chǎn)液量,也增加了修井作業(yè)及更換的費(fèi)用,最終導(dǎo)致原油開采成本的上升。為解決上述問題,應(yīng)該對(duì)油井生產(chǎn)桿管系統(tǒng)進(jìn)行優(yōu)化研究,選擇出盡可能延長(zhǎng)油桿、油管使用壽命的優(yōu)選方案。針對(duì)工作過程中會(huì)接觸腐蝕性流體的桿管,在選擇油桿及油管材質(zhì)時(shí)應(yīng)選擇防腐的桿管材質(zhì),而對(duì)于幾乎不具腐蝕性的油井應(yīng)根據(jù)其油層的深度及載荷進(jìn)行桿管材質(zhì)選擇；針對(duì)桿管的偏磨現(xiàn)象,應(yīng)分別對(duì)油管、油桿進(jìn)行應(yīng)力分析,選擇最小抗拉強(qiáng)度大于油桿、油管所受最大應(yīng)力的管桿,保證井下工具都能安全有效的工作。本文主要內(nèi)容包括四部分：第一部分對(duì)生產(chǎn)桿管設(shè)計(jì)不當(dāng)造成的影響進(jìn)行了分析,指出對(duì)生產(chǎn)桿管進(jìn)行優(yōu)選的迫切性及重要性；第二部分分析了油管、抽油桿在上下往復(fù)運(yùn)動(dòng)中的受力情況,并建立了桿管的最大、最小載荷的模型,根據(jù)建立的載荷及應(yīng)力模型分析了生產(chǎn)參數(shù)對(duì)油井載荷的影響；第三部分是通過分析油井的流入動(dòng)態(tài),確定了油井的產(chǎn)量與井底流壓的關(guān)系,給出了下泵深度計(jì)算方法和抽汲參數(shù)的選取原則,給出了油管的設(shè)計(jì)方法并根據(jù)等強(qiáng)度原則對(duì)油桿的進(jìn)行了設(shè)計(jì)；第四部分根據(jù)第三部分介紹的設(shè)計(jì)理論,運(yùn)用Visual Basic語(yǔ)言編制了油井生產(chǎn)桿管系統(tǒng)優(yōu)化研究軟件,該軟件能實(shí)現(xiàn)的功能包括根據(jù)已知數(shù)據(jù)繪制IPR曲線、確定下泵深度、據(jù)油井預(yù)測(cè)產(chǎn)能設(shè)計(jì)抽汲參數(shù)(泵徑、沖程、沖次等)、油管優(yōu)化、油桿優(yōu)化五部分。
[Abstract]:In the process of oil well production, the production rod and pipe (including oil rod and tubing) are subjected to various loads and complicated working environment, such as corrosion of underground fluid, etc. The failure of the rod and pipe includes the breakage or breakage of the sucker rod, the release of the oil pipe, the corrosion of the rod and pipe, the partial wear of the rod and pipe, and so on. These phenomena will lead to the oil rod. The life of tubing is reduced. The failure or early scrapping of production rod pipes not only seriously affects the fluid production of oil wells, but also increases the cost of workover and replacement, which ultimately leads to the increase of crude oil production cost. It is necessary to optimize the production rod and pipe system of oil well, and select the optimal selection scheme that can prolong the service life of oil rod and tubing as far as possible. In selecting the oil rod and tubing material, the anticorrosive material of the rod and pipe should be chosen, and the material of the rod and pipe should be selected according to the depth and load of the oil layer for the oil well that is almost non-corrosive, and the tubing should be separately used for the wear phenomenon of the rod and pipe. For the stress analysis of the oil rod, the pipe rod with the minimum tensile strength greater than the oil rod and the maximum stress on the tubing is selected. The main contents of this paper include four parts: the first part analyzes the influence caused by improper design of the production rod and pipe, and points out the urgency and importance of the optimal selection of the production rod and pipe; In the second part, the stress of tubing and sucker rod in reciprocating motion is analyzed, and the model of maximum and minimum load of rod and tube is established. The influence of production parameters on the load of oil well is analyzed according to the established load and stress model. In the third part, by analyzing the inflow performance of the well, the relationship between the production rate of the well and the bottom-hole flow pressure is determined, and the method of calculating the depth of the down-pump and the selection principle of the swabbing parameters are given. The design method of tubing is given and the oil rod is designed according to the principle of equal strength. 4th, according to the design theory introduced in the third part, the optimization research software of oil well production rod and pipe system is compiled by Visual Basic language. The functions of the software include drawing the IPR curve according to the known data, determining the pump depth, designing swabbing parameters (pump diameter, stroke, impingement, tubing optimization, oil rod optimization) according to the predicted productivity of oil well.
【學(xué)位授予單位】：長(zhǎng)江大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TE93

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