【摘要】：油氣產(chǎn)業(yè)作為上世紀乃至本世紀的占據(jù)支撐性地位的能源產(chǎn)業(yè),可預見的未來期限內(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持高速度、高采收率和低投入并行的狀態(tài),進一步高效掘取各種油氣藏尤其是復雜條件下藏儲難動用的油氣藏被日益重視。行業(yè)內(nèi),沿習傳統(tǒng)采用人工注水壓裂等增產(chǎn)增注手段強制性對儲層進行人工改造,以此來增加油氣資源的滲透率和出產(chǎn)率,達到高效增產(chǎn)增收的目的。油水井壓裂施工后可達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。因而對水力壓裂技術給予廣泛深入的實井驗證和深入嚴謹?shù)难芯?這對油氣產(chǎn)業(yè)的發(fā)展意義深遠。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,壓裂工藝的整體設計更是關系到壓裂的可行性和投入產(chǎn)出比,對實際的壓裂施工參數(shù)選擇和進程決斷具有重要指導意義,值得深入研究。針對本課題研究內(nèi)容,查閱國內(nèi)外本課題相關研究文獻的基礎上,首先對壓裂管柱國內(nèi)外的研究現(xiàn)狀進行了簡單介紹。文章重點針對壓裂管柱進行研究,利用傳統(tǒng)力學分析,借鑒鉆井管柱力學研究方法,首先研究了壓裂管柱的三軸應力狀態(tài),基于此,后續(xù)對壓裂管柱進行了強度分析與安全性校核。第四章在參考前人研究成果的基礎上,對比分析管柱軸向變形的影響因素,從力學角度出發(fā),綜合研究了壓裂管柱在五種基本效應下產(chǎn)生的軸向變形,得到不同基本效應影響下管柱的變形計算結果。針對不同工況下管柱的實際數(shù)據(jù),對前述計算模型進行了計算驗證和舉例。最后從壓裂工藝全局角度出發(fā),基于專業(yè)壓裂設計軟件,利用虛擬井況具體參數(shù),對模擬井進行了壓裂設計,并與原井壓裂結果進行對比,為壓裂實際作業(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.
【學位授予單位】：新疆大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TE934.2

【參考文獻】

相關碩士學位論文 前1條

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本文編號：2237945