本文選題：酸化壓裂管柱 + 受力分析��； 參考：《長江大學》2015年碩士論文

【摘要】：隨著各種提高采收率措施在油田的實施,酸化壓裂技術(shù)日益成熟,越來越多的油田公司在進行油氣井增產(chǎn)作業(yè)時應用到此項技術(shù)。酸化壓裂工藝能夠有效地改造油層、提高油層滲透率、增加油氣井產(chǎn)量。在酸化壓裂施工過程中,酸化壓裂管柱是唯一的承載構(gòu)件,是動力傳遞的重要組成系統(tǒng)。因此對其管柱進行受力分析、變形分析以及強度校核直接關(guān)系到酸化壓裂施工的成功與否,對酸化壓裂施工至關(guān)重要。對管柱組合進行優(yōu)化設計,在保證安全施工的同時最大程度的提高油田的經(jīng)濟效益。本文首先對酸化壓裂管柱及其配套工具,如封隔器、噴砂器、水力錨、油管等進行調(diào)查研究。充分了解各種管柱的結(jié)構(gòu)原理,工作方式,及使用條件等,為進行管柱優(yōu)化設計做好充分準備。分析了影響酸化壓裂工藝失效管柱本身的多種原因,主要包括工藝管柱設計的問題,配套井下工具的質(zhì)量問題,以及油管和封隔器的影響。通過對酸化壓裂失敗管柱自身的原因進行分析,提出了一些解決的對策,如提高井下工具技術(shù)性能、優(yōu)化工藝管柱設計、提高油田酸化壓裂管柱的安全可靠性等。并意識到了對酸化壓裂工藝管柱進行受力分析,確定封隔器合理的坐封壓力對酸化壓裂管柱的重要性。對酸化壓裂管柱的五種基本效應活塞效應、膨脹效應、溫度效應、螺旋彎曲效應和流動粘滯效應以及管柱所受的浮重、內(nèi)外壓進行了深入研究。對影響管柱受力和變形的因素做出分析,并繪制了詳細的受力、應變、以及管柱變形圖,對管柱的受力以及變形給出了直觀的結(jié)果,提出了管柱選取的建議。應用VB程序編制酸化壓裂管柱優(yōu)選軟件,對軟件安裝的系統(tǒng)要求、運行環(huán)境、安裝步驟,以及軟件的功能和使用方法進行了介紹。通過輸入各種參數(shù),可以得出管柱的軸向力分布曲線圖、軸向應力分布曲線圖、等效應力分布曲線圖、安全系數(shù)分布曲線、油管伸長量曲線圖,從而得出管柱優(yōu)選結(jié)果。應用ANSYS有限元分析軟件,建立了封隔器的模型圖,對封隔器進行了網(wǎng)格劃分。計算出不同坐封壓力下封隔器膠筒的變形情況以及膠筒和套管間的接觸應力,通過計算,最終確定了合理的封隔器坐封壓力。通過理論分析以及實例計算,為酸化壓裂工藝管柱的優(yōu)化設計提供了理論支持和技術(shù)保障。
[Abstract]:With the implementation of various oil recovery measures in the oilfield, acidification and fracturing technology is becoming more and more mature. More and more oil field companies apply this technology to oil and gas wells increasing production operation. The acid fracturing technology can effectively transform the oil layer, improve the permeability of the oil layer and increase the production of oil and gas wells. The pipe column is the only bearing member and an important component of the power transmission. Therefore, the force analysis, the deformation analysis and the strength checking are directly related to the success of the acidification and fracturing construction, which is very important to the acidification and fracturing construction. In order to improve the economic benefit of the oil field, this paper first investigates and studies the acid fracturing pipe column and its supporting tools, such as packer, sandblaster, hydraulic anchor, oil pipe, etc., fully understand the structure principle, working mode and use conditions of various pipe columns, and make full preparation for the optimization design of the pipe column. The various reasons of the pipe string itself include the problem of the design of the tube column, the quality of the supporting tools and the influence of the oil pipe and the packer. Through the analysis of the causes of the tubing column itself, some solutions are put forward, such as improving the performance of the downhole tool, optimizing the design of the tube column and improving the oil field. The safety and reliability of the acidizing and fracturing pipe column. It also realizes the stress analysis of the tubing column of the acid fracturing technology and determines the importance of the reasonable sealing pressure of the packer to the acid fracturing pipe column. Five basic effects on the acid fracturing pipe column, the piston effect, the expansion effect, the temperature effect, the spiral bending effect and the flow viscosity effect, are also realized. The floating weight and internal and external pressure of the pipe column are deeply studied. The factors that affect the force and deformation of the pipe column are analyzed, and the detailed stress, strain, and tube column deformation map are drawn. The intuitionistic results are given to the force and deformation of the pipe column, and the suggestion of the selection of the pipe column is put forward. The optimization software of the acid fracturing pipe column is developed by using the VB program. The system requirements, the operating environment, the installation steps, the function and the use method of the software are introduced. Through the input of various parameters, the axial force distribution curve, the axial stress distribution curve, the equivalent stress distribution curve, the safety factor distribution curve and the tubing elongation curve can be obtained. By using the ANSYS finite element analysis software, the model diagram of the packer is established and the packer is meshed. The deformation of the packer and the contact stress between the rubber cylinder and the casing are calculated. The reasonable pressure of the packer is determined by calculation. The theoretical analysis is carried out by the theoretical analysis. The calculation results provide theoretical support and technical support for the optimal design of acidizing fracturing string.
【學位授予單位】：長江大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TE934.3

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本文編號：1961617