【摘要】：隨著現(xiàn)代社會以及工業(yè)的快速發(fā)展,石油能源的需求量居高不下,大量的新區(qū)塊投入開發(fā),老油田深入開展挖潛工作。其中水平井開發(fā)技術(shù)作為新油田產(chǎn)能建設(shè)、老油田調(diào)整挖潛,少井高效開發(fā)的一項重要技術(shù)得到了大量而廣泛的應(yīng)用。然而,近幾年隨著國際油價的不斷下跌,石油能源開采成本居高不下,大量低效井被迫關(guān)閉,油田為保證產(chǎn)量及效益將目光投向更多的高效益開發(fā)井。現(xiàn)有研究表明,采用平-直聯(lián)合開發(fā)能夠獲得較好的開發(fā)效果,為實現(xiàn)后續(xù)高效開發(fā)需要開展平-直聯(lián)合開發(fā)的相關(guān)研究。首先本文以分析平-直聯(lián)合開發(fā)井網(wǎng)水平井的開發(fā)規(guī)律為最終研究目的,建立了三種不同完井方式(裸眼完井、射孔完井以及壓裂改造完井)和三種不同井網(wǎng)形式(二注井網(wǎng)、三注井網(wǎng)以及四注井網(wǎng))的平-直聯(lián)合開發(fā)井網(wǎng)滲流的模型,繪制了不同平-直聯(lián)合開發(fā)井網(wǎng)模型的流線,分析平-直聯(lián)合開發(fā)井網(wǎng)水平井的流線特征以及滲流特征,采用流管法實現(xiàn)平-直聯(lián)合開發(fā)井網(wǎng)油水兩相滲流模型的求解,給出了平-直聯(lián)合開發(fā)井網(wǎng)水平井的開發(fā)指標(biāo)計算方法。其次,本文以裸眼完井、射孔完井和壓裂完井三種完井方式為主,進一步分析水平段長度、井距、排距,射孔段數(shù)、射孔位置以及裂縫半長和裂縫條數(shù)等因素對于水平井開發(fā)規(guī)律的影響效果,給出了特定完井方式及井網(wǎng)條件下相關(guān)參數(shù)對于水平井開發(fā)指標(biāo)的影響規(guī)律。最后,在以上研究的基礎(chǔ)上,結(jié)合某外圍油田平-直聯(lián)合開發(fā)水平井井網(wǎng)形式以及完井情況,應(yīng)用流管法分別計算并且給出了不同儲層(滲透率級別分別為10、40、70×10-3μm2)、不同井網(wǎng)形式(二注井網(wǎng)、三注井網(wǎng)以及四注井網(wǎng))、不同完井方式(射孔完井以及壓裂改造完井)的平-直聯(lián)合開發(fā)井網(wǎng)的產(chǎn)量遞減率變化規(guī)律、含水上升率的變化規(guī)律以及產(chǎn)液量的變化規(guī)律。在此基礎(chǔ)上,本文的研究內(nèi)容旨在豐富相關(guān)水平井開發(fā)指標(biāo)模擬研究成果,為平-直聯(lián)合開發(fā)方案的制定提供理論支持和科學(xué)依據(jù)。
[Abstract]:With the rapid development of modern society and industry, the demand for petroleum energy remains high, a large number of new blocks are put into development, and the old oil fields carry out the work of tapping potential in depth. Horizontal well development technology as a new oilfield productivity construction, the adjustment of the old oil fields to tap potential, efficient development of small wells an important technology has been a large number of and widely used. However, with the decline of international oil price in recent years, the cost of oil and energy exploitation remains high, and a large number of inefficient wells have to be closed. In order to ensure the production and efficiency of oil fields, more and more high-benefit development wells will be focused on. The existing studies show that the use of flat-direct joint development can achieve better development results, in order to achieve the follow-up high-efficiency development needs to carry out the related research of flat-direct joint development. Firstly, in order to analyze the development rule of horizontal well pattern, three different completion methods (open hole completion, perforation completion and fracturing completion) and three different well patterns (two injection pattern) are established in this paper. The model of percolation of horizontal and direct development wells with three injection pattern and four injection well pattern is used to draw the streamlines of different well pattern models, and to analyze the streamline characteristics and percolation characteristics of horizontal wells in horizontal well pattern of horizontal well pattern with three injection wells and four injection wells. The flow tube method is used to solve the oil-water two-phase percolation model in the pattern of flat and straight development wells, and the calculation method of development index of horizontal wells in the pattern of flat and straight development wells is given. Secondly, this paper mainly consists of three kinds of completion methods: open hole completion, perforation completion and fracturing completion. Further analysis of horizontal section length, well spacing, row spacing, perforation section number, The effects of perforation location, fracture half length and fracture number on the development of horizontal wells are discussed. The effects of certain completion modes and related parameters on the development indexes of horizontal wells are given. Finally, on the basis of the above research, combined with the horizontal well pattern and completion situation of a certain peripheral oilfield, The flow tube method is used to calculate and give different reservoirs (permeability level is 1040 脳 10 ~ (-3) 渭 m ~ (2) and different well pattern (two-injection pattern). The variation law of production decline rate, water cut rise rate and fluid production rate of different completion patterns (perforation completion and fracturing completion) are discussed in three injection pattern and four injection well pattern, and the variation law of production decline rate, water cut rise rate and fluid production rate of flat and straight development well pattern with different completion modes (perforation completion and fracturing completion). On this basis, the purpose of this paper is to enrich the related horizontal well development index simulation research results, and to provide theoretical support and scientific basis for the formulation of the flat-straight joint development plan.
【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】：2016
【分類號】：TE312

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