本文選題：組分　切入點：揮發(fā)油　出處：《東北石油大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：大慶油田F區(qū)塊不同于一般黑油油藏,地面流體為油氣兩相并存,且原油中輕質(zhì)組分含量較高、原油密度低、收縮性強、生產(chǎn)氣油比大,因此F區(qū)塊流體是一種具有特殊性質(zhì)的流體,屬于特殊性油藏,并且有揮發(fā)油的特征。為了更好的開發(fā)該區(qū)塊,分析流體物性、確定F區(qū)塊油藏流體類型是大規(guī)模開發(fā)此區(qū)塊的前提,并對產(chǎn)能進行影響因素分析,進而得到提高產(chǎn)量的措施。本文由F區(qū)塊兩口典型油井的地面油氣組成組分合成了油藏流體組成組分,通過PVT模擬器模擬油藏流體PVT實驗。與兩口典型黑油油井流體作對比,分析了油藏流體的體積系數(shù)、粘度、收縮性。利用物性分析結(jié)果,通過原油物理特征分析法、液體體積與無因次壓力關(guān)系曲線法和井流物組成經(jīng)驗判別法等方法確定了F區(qū)塊流體類型。利用Eclipse中的E300模塊以及PVT模擬軟件,建立數(shù)學(xué)模型并與實際井產(chǎn)能對比,通過改變PVT模擬軟件以及數(shù)學(xué)模型中的參數(shù),得到生產(chǎn)氣油比、地面油密度、原始地層油粘度、飽和壓力、開采時間、井口壓力、油嘴尺寸、開采速度、和注水時機等對產(chǎn)能的影響。結(jié)果表明,與黑油相比,F區(qū)塊油藏流體體積系數(shù)、收縮率較大,密度、油粘度較小。通過多種方法判斷出F區(qū)塊流體為揮發(fā)油。當井底流壓大于飽和壓力時,生產(chǎn)氣油比的越大產(chǎn)能越大,地面油密度越大產(chǎn)能越小,原始地層油粘度越大產(chǎn)能越小,地層油體積系數(shù)越大產(chǎn)能越大,飽和壓力越大產(chǎn)能越大;當井底流壓小于飽和壓力時,生產(chǎn)氣油比的越大產(chǎn)能越小,地面油密度越大產(chǎn)能越大,原始地層油粘度越大產(chǎn)能越大,地層油體積系數(shù)越大產(chǎn)能越小,飽和壓力越大產(chǎn)能越小;隨著開采時間的增加,地層中壓力降到飽和壓力的點的位置距離井口越來越遠,產(chǎn)量下降速度加快;井口壓力越大,油井的穩(wěn)產(chǎn)時間越長;在不產(chǎn)生水化物的前提下,盡量選擇較小尺寸的油嘴;不宜采用較高的采油速度;開采時應(yīng)在高于飽和壓力時注水保壓;井底流壓應(yīng)控制在飽和壓力附近。
[Abstract]:The F block in Daqing Oilfield is different from the common black oil reservoir. The surface fluid is oil and gas two phases, and the content of light components in crude oil is high, the density of crude oil is low, the shrinkage is strong, and the ratio of producing gas to oil is large. Therefore, the fluid in block F is a fluid with special properties, which belongs to a special reservoir and has the characteristics of volatile oil. In order to develop the block better, the physical properties of the fluid are analyzed. Determining the fluid type of F block reservoir is the premise of large-scale development of this block, and the factors affecting productivity are analyzed. In this paper, the oil and gas components of two typical oil wells in F block have been synthesized and simulated by PVT simulator to simulate the PVT experiment of reservoir fluid. The results are compared with those of two typical black oil wells. The volume coefficient, viscosity and shrinkage of reservoir fluid are analyzed. The fluid types in F block are determined by the method of fluid volume and dimensionless pressure relation curve and empirical discrimination method of well flow composition. Using E300 module in Eclipse and PVT simulation software, the mathematical model is established and compared with the actual well productivity. By changing the parameters of PVT simulation software and mathematical model, the production gas-oil ratio, surface oil density, original formation oil viscosity, saturation pressure, recovery time, wellhead pressure, nozzle size, recovery speed are obtained. The results show that the volume coefficient, shrinkage and density of reservoir fluid in Block F are larger than those of Black Oil. The oil viscosity is small. The fluid in F block is found to be a volatile oil by various methods. When the bottom hole flow pressure is greater than saturation pressure, the larger the gas-oil ratio, the greater the productivity, the lower the surface oil density, the smaller the productivity, the greater the viscosity of the original formation oil, the smaller the productivity. The larger the volume coefficient of formation oil, the greater the productivity, the greater the saturation pressure, the greater the productivity, the smaller the production capacity of gas-oil ratio, the greater the surface oil density, the greater the productivity, the greater the viscosity of the original formation oil, the greater the productivity, when the bottom hole flow pressure is less than the saturation pressure, the larger the production capacity is, the greater the surface oil density is, the greater the productivity is. The greater the volume coefficient of formation oil, the smaller the productivity, the greater the saturation pressure, the smaller the productivity; with the increase of production time, the pressure in the formation drops to the point where the saturation pressure is more and more distant from the wellhead, and the rate of production decline accelerates; the greater the wellhead pressure, the greater the pressure at the wellhead. The longer the stable production time of oil well, the smaller size nozzle should be chosen under the premise of no hydration, the higher oil recovery speed should be adopted, the higher the water injection should be when the production pressure is higher than saturation pressure. Bottom-hole flow pressure should be controlled near saturation pressure.
【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】：2015
【分類號】：TE31

【相似文獻】

相關(guān)期刊論文 前10條

1 馮敏,張敏,康凱;陳堡油田陳3區(qū)塊油藏連通性的地球化學(xué)研究[J];油氣地質(zhì)與采收率;2003年05期

2 姜林;楊啟浩;張營華;任兆林;王洪亮;;CB246A區(qū)塊油藏開發(fā)存在問題及措施建議[J];內(nèi)蒙古石油化工;2011年07期

3 李煥鵬;封曉明;;筆架嶺油田JL11區(qū)塊油藏連通性的地球化學(xué)研究[J];石油地質(zhì)與工程;2013年03期

4 朱偉軍;周小平;陳柯;;某區(qū)塊油藏開發(fā)動態(tài)及注水開發(fā)可行性研究[J];遼寧化工;2012年09期

5 吳劍;;溱潼凹陷興北鶴倫區(qū)塊油藏成藏規(guī)律研究[J];能源與節(jié)能;2013年07期

6 姜香云,吳勝和,王志章;儲層三維模型在彩9區(qū)塊油藏描述中的應(yīng)用[J];西安石油大學(xué)學(xué)報(自然科學(xué)版);2005年04期

7 許弟龍,胡德高,王立軍;王廣區(qū)塊油藏高效開發(fā)的實踐[J];江漢石油學(xué)院學(xué)報;2003年03期

8 蓋凌云;;隨機模擬技術(shù)在彩10區(qū)塊油藏描述中的應(yīng)用[J];科學(xué)技術(shù)與工程;2009年12期

9 周惠忠;查美生;徐元輝;王利群;;用真空模型研究稠油蒸汽驅(qū)開采[J];石油學(xué)報;1988年04期

10 ;[J];;年期

相關(guān)重要報紙文章 前2條

1 任厚毅;勝利微生物驅(qū)油技術(shù)現(xiàn)場實施效果好[N];中國石化報;2010年

2 劉國安 通訊員 王學(xué)剛;大港油田孔南合作區(qū)塊進入總體開發(fā)階段[N];中國石油報;2003年

相關(guān)碩士學(xué)位論文 前3條

1 王慎銘;大慶油田F區(qū)塊油藏流體物性及產(chǎn)能影響因素分析[D];東北石油大學(xué);2015年

2 劉斐;肇州401區(qū)塊油藏開發(fā)地質(zhì)特征研究[D];成都理工大學(xué);2008年

3 楊靜波;新廟油田嫩1區(qū)塊油藏描述與開發(fā)對策研究[D];東北石油大學(xué);2013年

，

本文編號：1625328