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系統識別號 U0026-2707201116421900
論文名稱(中文) 地層滲透率非均質性對二氧化碳封存注儲能力影響之研究
論文名稱(英文) Effect of Permeability Heterogeneity on the Injectivity of Carbon Dioxide Sequestration
校院名稱 成功大學
系所名稱(中) 資源工程學系碩博士班
系所名稱(英) Department of Resources Engineering
學年度 99
學期 2
出版年 100
研究生(中文) 劉穎潔
研究生(英文) Ying-Jie Liou
學號 N46981018
學位類別 碩士
語文別 中文
論文頁數 84頁
口試委員 指導教授-謝秉志
共同指導教授-林再興
口試委員-吳榮章
口試委員-胡興台
口試委員-吳健一
口試委員-楊耿明
口試委員-陳大麟
口試委員-吳柏裕
中文關鍵字 平均滲透率估算  滲透率異向性  注儲能力  二氧化碳封存 
英文關鍵字 average permeability  anisotropy  injectivity index  CO2 sequestration 
學科別分類
中文摘要 本研究的主要目的是研究一個簡化的方法,將複雜滲透率分佈(非均質)的地層簡化為某一個具代表性的平均滲透率均質之地層,並利用數值模擬法計算複雜滲透率分佈的地層與簡化滲透率的地層於二氧化碳注儲期間之井底流壓變化,推估其注儲能力並進行比對。
本研究中之研究步驟為:(1)單相(水層注水)之滲透率均質地層的單層模式與多層模式之壓力比對;(2)單相非均質地層之平均滲透率估算研究;(3)兩相(油層注水)均質地層之單層模式與多層模式之壓力比對;(4)兩相(油層注水)非均質地層之平均滲透率估算研究;(5)兩相(水層注二氧化碳)均質地層之單層模式與多層模式研究;(6)兩相(水層注二氧化碳)非均質地層之平均滲透率估算研究;(7)案例研究。
由本研究所獲得之結果可知:(1) 在水層注水時不論滲透率為均質或非均質(包括滲透率均向及異向),皆可將多層模式地層利用平均滲透率簡化為單層模式地層,且壓力比對結果一樣。而在油層中注水時,同樣可利用平均滲透率的方式將多層地層以單層地層表示,其壓力的比對結果也相同。另外在水層注二氧化碳時,在將多層模式轉化為單層模式時需考慮重力因素所產生之壓力差,但若以平均滲透率表示的多層模式地層與滲透率分佈不同之地層比對時,壓力的比對結果也會相同。
(2) 以現場地層的滲透率資料進行平均滲透率之估算時,若為定注入率注入時,簡化滲透率模式與原始滲透率分佈的地層模式之井底流壓比對結果相近;若為定壓力注入時,注入率的比對結果也相近。因此,以平均滲透率所表示的地層所計算出之二氧化碳注儲能力,可做為二氧化碳封存於滲透率分佈複雜之地層時,其二氧化碳注儲能力的推估。
由以上研究可證明,利用平均滲透率的計算可簡化複雜滲透率分佈之地層,並可提供二氧化碳注儲工程上之參考。
英文摘要 The purpose of this study is to study a simplified method to make the heterogeneous reservoir have a representative average permeability. The bottom hole pressure of permeability heterogeneity and homogeneity will be compared by using numerical method, then the injectivity index of carbon dioxide sequestration can be estimated.
The major works in this study include: (1) The bottom hole pressure validation of homogeneous reservoir from one-layer and multi-layer models, for the case of water injection into an aquifer; (2) The study of effect of permeability heterogeneity on the pressure and injectivity calculation for the case of water injection into an aquifer; (3) The bottom hole pressure validation of homogeneous reservoir from one-layer and multi-layer models, for the case of water injection into an oil reservoir; (4) The study of effect of permeability heterogeneity on the pressure and injectivity calculation, for the case of water injection into an oil reservoir; (5) The bottom hole pressure validation of homogeneous reservoir from one-layer and multi-layer models, for the case of CO2 injection into an aquifer; (6) The study of effect of permeability heterogeneity on the pressure and injectivity calculation, for the case of CO2 injection into an aquifer; (7) A case study of injectivity estimation of CO2 sequestration.
The major results obtained from this study are: (1) the equation of average permeability estimation can be used to simplify the complex permeability distribution system (i.e., heterogeneity reservoir) for injectivity calculation. In the cases of single-phase, water-flooding and gas flooding, the multi-layer heterogeneity reservoir can be simplified to homogeneous reservoir with a representative average permeability reservoir for pressure and injectivity calculation. (2) In the case study, the equation of average permeability estimation is used for a heterogeneity aquifer of CO2 sequestration in NW Taiwan to calculate the pressure and injectivity of CO2 injection well. Both cases of constant rate injection and constant pressure injection are been conducted. The pressure and injectivity calculation of the simplified homogeneous reservoir with the representative average permeability is identical to that of the heterogeneous reservoir.
論文目次 中文摘要----------------------------------------------------I
英文摘要--------------------------------------------------III
誌謝------------------------------------------------------V
目錄-----------------------------------------------------VII
表目錄--------------------------------------------------XIII
圖目錄---------------------------------------------------XIV
符號說明------------------------------------------------XVIII
第一章 前言-----------------------------------------------1
1-1 研究背景--------------------------------------------1
1-1-1 全球暖化--------------------------------------------1
1-1-2 二氧化碳減量方法-------------------------------------1
1-1-3 二氧化碳地質封存-------------------------------------2
1-2 問題陳述--------------------------------------------3
1-2-1 地層之非均質性--------------------------------------3
1-2-2 研究動機--------------------------------------------3
第二章 研究目的---------------------------------------------5
第三章 文獻回顧---------------------------------------------6
3-1 地層平均滲透率之計算------------------------------6
3-2滲透率非均質性地層之二氧化碳封存數值模擬------------7
第四章 理論基礎--------------------------------------------10
4-1地層平均滲透率估算方程式---------------------------10
4-2二氧化碳注儲能力計算方程式-------------------------13
4-3 地層流體流動方程式-------------------------------15
第五章 研究流程--------------------------------------------18
5-1單相均質地層之單層模式與多層模式之壓力比對--------18
5-2單相非均質地層之平均滲透率估算研究------------------18
5-2-1 均向(kv/kh=1)非均質地層之多層模式平均滲透率
研究-----------------------------------------18
5-2-2 異向(kv/kh≠1)非均質地層之多層模式平均滲透率
研究-----------------------------------------18
5-3 兩相(油層注水)均質地層之單層模式與多層模式之壓力
比對--------------------------------------------19
5-4兩相(油層注水)非均質地層之平均滲透率估算研究-----19
5-4-1均向(kv/kh=1)非均質地層之多層模式平均滲透率
研究-----------------------------------------19
5-4-2異向(kv/kh≠1)非均質地層之多層模式平均滲透率
研究-----------------------------------------19
5-5 兩相(水層注二氧化碳)均質地層之單層模式與多層模式
之壓力比對----------------------------------------19
5-6兩相(水層注二氧化碳)非均質地層之平均滲透率估算研
究-----------------------------------------------20
5-6-1均向(kv/kh=1)非均質地層之多層模式平均滲透率
研究-----------------------------------------20
5-6-2異向(kv/kh≠1)非均質地層之多層模式平均滲透率
研究-----------------------------------------20
5-7 案例研究----------------------------------------20
第六章 結果與討論-------------------------------------------21
6-1單相均質地層之單層模式與多層模式之壓力比對--------21
6-2單相非均質地層之平均滲透率估算研究------------------24
6-2-1 均向(kv/kh=1)非均質地層之多層模式平均滲透率
研究------------------------------------------24
6-2-2 異向(kv/kh≠1)非均質地層之多層模式平均滲透率
研究-----------------------------------------25
6-3 兩相(油層注水)均質地層之單層模式與多層模式之壓力
比對--------------------------------------------31
6-4兩相(油層注水)非均質地層之平均滲透率估算研究-----33
6-4-1均向(kv/kh=1)非均質地層之多層模式平均滲透率
研究-----------------------------------------33
6-4-2異向(kv/kh≠1)非均質地層之多層模式平均滲透率
研究-----------------------------------------34
6-5 兩相(水層注二氧化碳)均質地層之單層模式與多層模式
之壓力比對----------------------------------------38
6-6兩相(水層注二氧化碳)非均質地層之平均滲透率估算研
究-----------------------------------------------40
6-6-1均向(kv/kh=1)非均質地層之多層模式平均滲透率
研究-----------------------------------------40
6-6-2異向(kv/kh≠1)非均質地層之多層模式平均滲透率
研究-----------------------------------------40
6-7 案例研究----------------------------------------45
6-7-1資料蒐集與目標鹽水地層地質概述----------------45
6-7-2模型建立------------------------------------46
6-7-3平均滲透率估算研究---------------------------46
第七章 結論與建議-------------------------------------------48
參考文獻---------------------------------------------------50
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