【摘要】：油氣產(chǎn)業(yè)作為上世紀(jì)乃至本世紀(jì)的占據(jù)支撐性地位的能源產(chǎn)業(yè),可預(yù)見的未來期限內(nèi)具有無可替代的地位。日益消耗下,國內(nèi)大多油氣井的開采進(jìn)入高投入、低產(chǎn)出的中后期,低滲透井的開采難度越來越大,特低滲透井情況更不容樂觀。如何使油氣開采能夠堅(jiān)持高速度、高采收率和低投入并行的狀態(tài),進(jìn)一步高效掘取各種油氣藏尤其是復(fù)雜條件下藏儲(chǔ)難動(dòng)用的油氣藏被日益重視。行業(yè)內(nèi),沿習(xí)傳統(tǒng)采用人工注水壓裂等增產(chǎn)增注手段強(qiáng)制性對(duì)儲(chǔ)層進(jìn)行人工改造,以此來增加油氣資源的滲透率和出產(chǎn)率,達(dá)到高效增產(chǎn)增收的目的。油水井壓裂施工后可達(dá)到改良近井帶的滲流狀態(tài)、增加采收的目的,提升油氣出產(chǎn)率。因而對(duì)水力壓裂技術(shù)給予廣泛深入的實(shí)井驗(yàn)證和深入嚴(yán)謹(jǐn)?shù)难芯?這對(duì)油氣產(chǎn)業(yè)的發(fā)展意義深遠(yuǎn)。壓裂作業(yè)中的管柱及其配套工具是壓裂施工的主體,決定施工成效,壓裂工藝的整體設(shè)計(jì)更是關(guān)系到壓裂的可行性和投入產(chǎn)出比,對(duì)實(shí)際的壓裂施工參數(shù)選擇和進(jìn)程決斷具有重要指導(dǎo)意義,值得深入研究。針對(duì)本課題研究內(nèi)容,查閱國內(nèi)外本課題相關(guān)研究文獻(xiàn)的基礎(chǔ)上,首先對(duì)壓裂管柱國內(nèi)外的研究現(xiàn)狀進(jìn)行了簡單介紹。文章重點(diǎn)針對(duì)壓裂管柱進(jìn)行研究,利用傳統(tǒng)力學(xué)分析,借鑒鉆井管柱力學(xué)研究方法,首先研究了壓裂管柱的三軸應(yīng)力狀態(tài),基于此,后續(xù)對(duì)壓裂管柱進(jìn)行了強(qiáng)度分析與安全性校核。第四章在參考前人研究成果的基礎(chǔ)上,對(duì)比分析管柱軸向變形的影響因素,從力學(xué)角度出發(fā),綜合研究了壓裂管柱在五種基本效應(yīng)下產(chǎn)生的軸向變形,得到不同基本效應(yīng)影響下管柱的變形計(jì)算結(jié)果。針對(duì)不同工況下管柱的實(shí)際數(shù)據(jù),對(duì)前述計(jì)算模型進(jìn)行了計(jì)算驗(yàn)證和舉例。最后從壓裂工藝全局角度出發(fā),基于專業(yè)壓裂設(shè)計(jì)軟件,利用虛擬井況具體參數(shù),對(duì)模擬井進(jìn)行了壓裂設(shè)計(jì),并與原井壓裂結(jié)果進(jìn)行對(duì)比,為壓裂實(shí)際作業(yè)提供一定參考。
[Abstract]:As a supporting energy industry in last century and even in this century, oil and gas industry has an irreplaceable position in the foreseeable future. With the increasing consumption of oil and gas wells in China, the production of most oil and gas wells has entered into high input. In the middle and late stage of low production, the production of low permeability wells is becoming more and more difficult, and the situation of ultra-low permeability wells is not optimistic. How to make oil and gas production stick to the state of high speed, high recovery and low input, and how to excavate all kinds of oil and gas reservoirs efficiently, especially those reservoirs which are difficult to produce under complicated conditions are paid more and more attention to. In the industry, artificial modification of reservoir is made by artificial injection fracturing and other means of increasing production and injection according to tradition, in order to increase permeability and production rate of oil and gas resources, and achieve the purpose of increasing production and increasing production efficiently. After fracturing, the percolation state of the near well zone can be improved, the recovery can be increased and the oil and gas production rate can be improved. Therefore, it is of great significance for the development of oil and gas industry to give extensive and deep well validation and thorough and rigorous research on hydraulic fracturing technology. The pipe string and its supporting tools are the main part of fracturing operation, which determines the effect of fracturing. The whole design of fracturing technology is related to the feasibility of fracturing and the ratio of input and output. It has important guiding significance for actual fracturing operation parameter selection and process determination, and is worthy of further study. According to the research content of this paper, based on the reference of domestic and foreign research literature, the research status of fracturing string at home and abroad is introduced briefly. This paper focuses on the research of fracturing string. By using traditional mechanics analysis and using drilling string mechanics research method for reference, the triaxial stress state of fracturing string is studied firstly, based on this, The strength analysis and safety check of fracturing string were carried out. In chapter 4, based on the previous research results, the influence factors of axial deformation of pipe string are compared and analyzed, and the axial deformation of fracturing string under five basic effects is studied synthetically from the point of view of mechanics. The calculated results of string deformation under different basic effects are obtained. According to the actual data of pipe string under different working conditions, the calculation model mentioned above is verified and exemplified. Finally, from the point of view of the whole fracturing process, based on the professional fracturing design software and using the specific parameters of the virtual well condition, the fracturing design of the simulated well is carried out, and compared with the fracturing result of the original well, which provides a certain reference for the actual fracturing operation.
【學(xué)位授予單位】：新疆大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TE934.2

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本文編號(hào)：2237945