本文選題：高壓水射流 + 新型�。� 參考：《東北石油大學(xué)》2017年碩士論文

【摘要】：新型高壓水射流徑向水平井技術(shù)在地面超高壓的情況下,除循環(huán)延程壓力損耗外使得井下噴射工具獲得了更大的噴射壓力,從而提高了噴射軟管的剛性準(zhǔn)直以及破巖能力,使得高壓軟管更有效、更準(zhǔn)直的穿越油藏,做到有的放矢,對于開發(fā)星點(diǎn)油藏和邊際油藏是一種很好的技術(shù)手段,其施工在套管上進(jìn)行局部開窗,與常規(guī)開窗側(cè)鉆井相比,對套管損傷小;不需要鉆柱與鉆頭的旋轉(zhuǎn),減少了井下復(fù)雜情況的發(fā)生;采用高壓水射流技術(shù),施工周期短,最大限度的降低油層污染;疏通稠油井注汽通道,增加注汽量;改善地下井網(wǎng)布局,在生產(chǎn)層中創(chuàng)造一個(gè)更大的供油區(qū),增大泄油面積[1]。本論文主要從事新型高壓水射流徑向水平井地面設(shè)備配套、井下工具、油藏工程評價(jià)以及噴射液的應(yīng)用研究,通過研究國外相關(guān)先進(jìn)高壓水射流技術(shù)和自身現(xiàn)場應(yīng)用實(shí)踐,總結(jié)新型高壓水射流徑向水平井現(xiàn)場施工技術(shù)、地面設(shè)備配套、井下工具工作原理、油藏工程評價(jià)以及噴射液組成,為該技術(shù)在遼河油田的應(yīng)用提供了理論研究。通過研究新型高壓水射流徑向水平井取得了以下成果。地面設(shè)備的配套,通過壓力流程損耗計(jì)算,要滿足井下足夠的噴射壓力,采用直徑12mm連續(xù)管作為工作管柱是可以滿足條件的;地面超高壓的形成單靠多級泵是無法實(shí)現(xiàn)的,需要地面增壓裝置的參與才能達(dá)到超高壓。井下工具研究,開窗鉆頭應(yīng)采用碳鋼合體制造,能夠滿足一般N80套管開窗鋼級,鉆頭有基體和刀片組成,刀片設(shè)計(jì)采用前角x=12.5°、后角y=10°、主偏角z=5°、后刃傾角w=10°更有助于切削;萬向節(jié),采用十字軸式萬向節(jié)結(jié)構(gòu),在傳遞高扭矩的情況下其自身磨損小,使用周期長;轉(zhuǎn)向器的研究,采用響應(yīng)面法和有限元計(jì)算方法,建立了轉(zhuǎn)向器滑動摩擦阻力關(guān)于轉(zhuǎn)向器結(jié)構(gòu)參數(shù)的響應(yīng)面模型。噴射鉆頭,建立噴射鉆頭自進(jìn)公式,通過模擬計(jì)算和試驗(yàn),得出最優(yōu)擴(kuò)散角在14.5°左右。
[Abstract]:A new type of high pressure water jet radial horizontal well technology in the case of surface ultra-high pressure, in addition to circulation delay pressure loss, the downhole injection tool to obtain greater injection pressure, thus improving the injection hose rigid collimation and rock breaking ability. Making the high-pressure hose more effective, more collimated through the reservoir, so as to be targeted, for the development of star-point reservoir and marginal reservoir is a good technical means, its construction on the casing for partial window, compared with conventional windowing side drilling, The casing damage is small, the rotation of drill string and bit is not needed, and the occurrence of complex downhole situation is reduced; the high pressure water jet technology is adopted, the construction period is short, the oil layer pollution is minimized, the steam injection channel of heavy oil well is dredged, and the steam injection rate is increased. Improve the layout of underground well pattern, create a larger oil supply area in the production layer, increase the oil discharge area [1]. This paper is mainly engaged in the research of new high pressure water jet radial horizontal well surface equipment, downhole tools, reservoir engineering evaluation and the application of injection fluid, through the research of foreign advanced high pressure water jet technology and its own field application practice. This paper summarizes the field construction technology of new high pressure water jet radial horizontal well, surface equipment matching, working principle of downhole tools, reservoir engineering evaluation and injection composition, which provides a theoretical study for the application of this technology in Liaohe Oilfield. The following results have been achieved by studying a new high-pressure water jet radial horizontal well. In order to meet enough injection pressure, the matching of surface equipment can satisfy the condition of using diameter 12mm continuous pipe as working string, and the formation of surface ultra-high pressure can not be realized by multi-stage pump alone. The participation of ground booster device is required to achieve ultra high pressure. The research of downhole tools shows that the windowing bit should be made of carbon steel, which can meet the general N80 casing windowing steel grade. The drill bit has matrix and blade composition. The blade is designed with the front angle of 12.5 擄, the rear angle of yaw 10 擄, the main deviation angle of 5 擄and the rear edge angle of 10 擄, which is more helpful for cutting. The universal joint adopts the cross shaft universal joint structure, its own wear is small and the service period is long under the condition of transmitting high torque, the research of the steering gear adopts the response surface method and the finite element calculation method, The response surface model of the sliding friction resistance of the steering gear on the structural parameters of the steering gear is established. The self-feeding formula of jet bit is established. The optimum diffusion angle is about 14.5 擄through simulation calculation and test.
【學(xué)位授予單位】：東北石油大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TE243

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