【摘要】：水平井技術(shù)現(xiàn)已成為國(guó)內(nèi)外高效開發(fā)底水油藏的重要手段之一,但水平井含水率上升快、產(chǎn)量遞減迅速的問(wèn)題也日益突顯。目前C油田的水平井已經(jīng)進(jìn)入高含水開發(fā)階段,制約了該油田高效開采,所以本文以C油田中心管控水技術(shù)為研究對(duì)象,形成適用于該油田的中心管控水設(shè)計(jì)優(yōu)化方法,以實(shí)現(xiàn)水平井降水增油的效果。 中心管控水完井技術(shù)通過(guò)改變井筒中產(chǎn)液流向,降低產(chǎn)液量大的水平段壓差從而使流入剖面更加均衡,以延緩底水上升趨勢(shì)。本文在研究中心管原理、數(shù)學(xué)模型和水淹模式等理論學(xué)習(xí)之后,對(duì)C油田進(jìn)行了中心管技術(shù)適用性分析,根據(jù)地質(zhì)資料、流體物性、井身結(jié)構(gòu)和產(chǎn)液特征等參數(shù),對(duì)12口目標(biāo)井進(jìn)行了評(píng)價(jià),總結(jié)可以考慮采用中心管控水的水平井。然后以A井為例進(jìn)行了詳細(xì)的中心管控水方案設(shè)計(jì),針對(duì)水脊特征對(duì)中心管的下入位置、結(jié)構(gòu)、長(zhǎng)度和管徑實(shí)行了優(yōu)選,進(jìn)一步提高了中心管控水方案設(shè)計(jì)水平,為今后C油田的控水增產(chǎn)措施提供了技術(shù)支撐。 本文在常規(guī)中心管控水技術(shù)之上,提出了在中心管內(nèi)填充材料的改進(jìn)思路,通過(guò)物理實(shí)驗(yàn)做了初步的探討。由于實(shí)驗(yàn)條件的限制,本文只是拋磚引玉做了基礎(chǔ)實(shí)驗(yàn),為以后進(jìn)一步的研究打下了基礎(chǔ)。
[Abstract]:Horizontal well technology has become one of the most important means to develop bottom water reservoir efficiently at home and abroad, but the problem of water cut rising rapidly and production decreasing rapidly in horizontal well is becoming more and more prominent. At present, the horizontal well in C Oilfield has entered the stage of high water cut development, which restricts the efficient production of this oilfield. Therefore, this paper takes the central control water technology of C Oilfield as the research object, and forms an optimization method of the central control water design suitable for this oilfield. In order to achieve the effect of horizontal well precipitation and oil increase. By changing the flow direction of the fluid produced in the wellbore and reducing the pressure difference in the horizontal section with large liquid production, the central controlled water completion technology can make the inflow profile more balanced and delay the rising trend of the bottom water. After studying the theory of central pipe principle, mathematical model and water flooding model, this paper analyzes the applicability of central pipe technology in C oilfield. According to the geological data, fluid physical properties, well structure and liquid production characteristics, etc. Twelve target wells are evaluated, and the horizontal wells with central water control can be considered. Then, taking well A as an example, a detailed central control water scheme is designed. According to the characteristics of the water ridge, the location, structure, length and diameter of the central pipe are optimized, and the design level of the central control water scheme is further improved. It provides technical support for water control and production increase measures in C oilfield in the future. In this paper, based on the conventional central water control technology, the improvement of the filling material in the central tube is put forward, and a preliminary discussion is made through physical experiments. Due to the limitation of the experimental conditions, this paper has done a basic experiment, which will lay a foundation for further research.
【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)】：TE243

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