連續(xù)油管水力噴砂射孔工藝研究
發(fā)布時(shí)間:2018-02-27 18:38
本文關(guān)鍵詞: 連續(xù)油管 水力噴砂射孔 影響因素 實(shí)例計(jì)算 出處:《西南石油大學(xué)》2015年碩士論文 論文類型:學(xué)位論文
【摘要】:連續(xù)油管水力噴砂射孔技術(shù)可有效解決四川、大慶等油氣區(qū)低孔低滲、多產(chǎn)層縱向分布、層間跨距大等儲(chǔ)層有效開(kāi)發(fā)問(wèn)題,連續(xù)油管水力噴砂射孔形成的水力沖蝕孔對(duì)儲(chǔ)層基本無(wú)傷害,孔眼質(zhì)量的好壞直接影響之后增產(chǎn)作業(yè)效果。 本文采用了理論、實(shí)驗(yàn)研究、數(shù)值模擬等方法開(kāi)展研究。首先從伯努利原理、水力噴射切割理論模型和水力噴砂射孔微觀作用機(jī)理方面入手,論證連續(xù)油管水力噴砂射孔對(duì)地層基本無(wú)傷害等重要特點(diǎn);然后對(duì)影響連續(xù)油管水力噴砂射孔能力的因素進(jìn)行研究,主要是通過(guò)Fluent軟件數(shù)值模擬、實(shí)驗(yàn)數(shù)據(jù)對(duì)比分析等方法研究了固定噴速孔眼入口孔內(nèi)流場(chǎng)和壓力場(chǎng)分布、水力孔眼內(nèi)部壓力分布影響因素、不同射孔參數(shù)對(duì)地層破裂壓力和套管強(qiáng)度的影響等;工藝設(shè)計(jì)中對(duì)影響連續(xù)油管水力噴砂射孔的關(guān)鍵參數(shù)(噴嘴參數(shù)、施工壓力參數(shù)等)進(jìn)行了設(shè)計(jì)計(jì)算;作業(yè)程序部分對(duì)工藝流程、相關(guān)設(shè)備、作業(yè)注意事項(xiàng)進(jìn)行了簡(jiǎn)要介紹,其中對(duì)水力噴射工具腐蝕原因及改進(jìn)措施提出了自己的看法;最后對(duì)XX井進(jìn)行了一次連續(xù)油管水力噴砂射孔方案的概念設(shè)計(jì)。 通過(guò)本文的研究,更加明確了連續(xù)油管水力噴砂射孔工藝的概念設(shè)計(jì)思路與方法,總結(jié)得出了水力噴射工具腐蝕原因及改進(jìn)措施等新的經(jīng)驗(yàn)認(rèn)知,為低滲油氣藏高效開(kāi)發(fā)打下了一定理論和實(shí)踐基礎(chǔ)。
[Abstract]:Continuous tubing hydraulic sand blasting perforation technology can effectively solve the problems of effective reservoir development, such as low porosity and low permeability, vertical distribution of productive layers and large interlayer span in Sichuan and Daqing oil and gas regions, etc. The hydraulic erosion hole formed by hydraulic sand blasting in continuous tubing has no damage to reservoir, and the quality of hole directly affects the effect of increasing production. In this paper, theoretical, experimental and numerical simulation methods are used. Firstly, the Bernoulli principle, the theoretical model of hydraulic jet cutting and the microscopic mechanism of hydraulic sandblasting perforation are introduced. The main characteristics of continuous tubing hydraulic sand blasting perforation are demonstrated, such as no damage to the formation, and the factors influencing the hydraulic sand blasting perforation capacity of continuous tubing are studied, mainly through the numerical simulation of Fluent software. The distribution of flow field and pressure field in the inlet hole of fixed injection hole, the influencing factors of pressure distribution in hydraulic hole, and the influence of different perforation parameters on formation fracture pressure and casing strength were studied by comparing and analyzing the experimental data. In the process design, the key parameters (nozzle parameters, construction pressure parameters, etc.) that affect the hydraulic sandblasting perforation of continuous tubing are designed and calculated. The reasons for corrosion of hydraulic injection tools and the improvement measures are put forward. Finally, the concept design of a continuous tubing hydraulic sandblasting perforation scheme is carried out for XX well. Through the research in this paper, the conceptual design ideas and methods of continuous tubing hydraulic sandblasting perforation process are more clearly defined, and new experiential cognition such as corrosion reasons of hydraulic injection tools and improvement measures are summarized. It lays a theoretical and practical foundation for the high efficiency development of low permeability reservoirs.
【學(xué)位授予單位】:西南石油大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2015
【分類號(hào)】:TE355.7
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