套管腐蝕動(dòng)態(tài)分析技術(shù)研究
本文選題:套管腐蝕 + 套損檢測(cè); 參考:《西安石油大學(xué)》2015年碩士論文
【摘要】:由于井下套管受到外力、高溫化學(xué)腐蝕等因素引起的套管變形、損壞,直接影響油水井的使用壽命和注水效果,也會(huì)影響油氣田的生產(chǎn)產(chǎn)量。隨著油田開(kāi)發(fā)力度的不斷加深,套損現(xiàn)象日益加重。因此,在套管損傷失效之前,及時(shí)準(zhǔn)確的檢測(cè)出套管的損壞狀況、方位及種類(lèi),能為套損機(jī)理的分析、套損的預(yù)測(cè)以及注采方案的調(diào)整提供準(zhǔn)確的依據(jù),從而可以有效的保護(hù)油水井套管,預(yù)防套損的發(fā)生并且能及時(shí)恢復(fù)套損井的產(chǎn)能,防止各種油井質(zhì)量事故。同時(shí),這也是降低油氣勘探開(kāi)發(fā)成本的有效措施,對(duì)油田的穩(wěn)產(chǎn)及發(fā)展起著重要作用。所以進(jìn)行套管腐蝕動(dòng)態(tài)分析技術(shù)研究,具有重要意義。本課題依據(jù)場(chǎng)分布掃描法的具體理論,采用四電極法,通過(guò)在套管上加激勵(lì)電流,測(cè)量套管上的微小壓降,用于分析套管的腐蝕情況。借助有限元分析軟件COMSOL,具體探討了套管電阻變換與套管腐蝕、錯(cuò)斷及破裂等的關(guān)系。在理想模型仿真的基礎(chǔ)上,建立套損模型,測(cè)出實(shí)驗(yàn)數(shù)據(jù)經(jīng)USB接口傳輸?shù)缴衔粰C(jī),驗(yàn)證用場(chǎng)分布法可檢測(cè)套管的腐蝕類(lèi)型,從而達(dá)到檢測(cè)套損的目的。鑒于以上情況,可以看出開(kāi)展本課題的研究可對(duì)某段盲孔臂是否均勻,是否有沙眼進(jìn)行實(shí)驗(yàn)校準(zhǔn),可推動(dòng)套管檢測(cè)技術(shù)的發(fā)展,并具有現(xiàn)實(shí)意義和實(shí)用價(jià)值。
[Abstract]:The casing deformation and damage caused by external force and high temperature chemical corrosion directly affect the service life of oil and water well and the effect of water injection, and also affect the production rate of oil and gas field. With the deepening of oilfield development, casing damage is becoming more and more serious. Therefore, before casing damage failure, timely and accurate detection of casing damage condition, direction and type can provide an accurate basis for the analysis of casing damage mechanism, casing damage prediction and the adjustment of injection-production scheme. Thus, the casing can be effectively protected, the casing damage can be prevented and the productivity of casing damaged wells can be recovered in time, and various oil well quality accidents can be prevented. At the same time, it is an effective measure to reduce the cost of oil and gas exploration and development, which plays an important role in the stable production and development of oil fields. Therefore, it is of great significance to study the dynamic analysis technology of casing corrosion. According to the concrete theory of field distribution scanning method, the four-electrode method is used to measure the tiny pressure drop on the casing by adding the excitation current to the casing, which is used to analyze the corrosion of the casing. With the help of finite element analysis software COMSOL, the relationship between casing resistance transformation and casing corrosion, fault and fracture is discussed in detail. Based on the simulation of ideal model, the casing damage model is established, and the experimental data are transmitted to the upper computer via USB interface. It is verified that the corrosion type of casing can be detected by using field distribution method, so as to achieve the purpose of detecting casing damage. In view of the above situation, it can be seen that the research of this subject can be used to test the uniformity of a blind hole arm and trachoma, which can promote the development of casing detection technology, and has practical significance and practical value.
【學(xué)位授予單位】:西安石油大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2015
【分類(lèi)號(hào)】:TE983
【共引文獻(xiàn)】
相關(guān)期刊論文 前3條
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相關(guān)碩士學(xué)位論文 前10條
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6 袁春蘭;井中井壁水泥厚度測(cè)量系統(tǒng)研究[D];成都理工大學(xué);2012年
7 翟金海;油基泥漿微電阻率掃描成像方法研究[D];電子科技大學(xué);2012年
8 潘敏;MIT-MTT套損檢測(cè)技術(shù)及三維成像軟件開(kāi)發(fā)[D];長(zhǎng)江大學(xué);2014年
9 李貽浩;井下抽油泵吸入口套管腐蝕規(guī)律模擬研究[D];長(zhǎng)江大學(xué);2014年
10 高筱;金屬套管恒流源場(chǎng)分布與缺陷檢測(cè)研究[D];西安石油大學(xué);2014年
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