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研究生:鄭乃云
研究生(外文):Nai-YunCheng
論文名稱:地層平均參數特性取代異質性參數特性對計算壓力及流率影響之研究
論文名稱(外文):Study of the Pressure and Flow Rate Affected by using Average Reservoir Parameters of Heterogeneity Reservoir
指導教授:林再興林再興引用關係
指導教授(外文):Zsay-Shing Lin
學位類別:碩士
校院名稱:國立成功大學
系所名稱:資源工程學系碩博士班
學門:工程學門
學類:材料工程學類
論文種類:學術論文
論文出版年:2012
畢業學年度:100
語文別:中文
論文頁數:97
中文關鍵詞:平均滲透率平均孔隙率非均質地層數值模擬
外文關鍵詞:Average PermeabilityAverage PorosityHeterogeneous ReservoirNumerical Simulation
相關次數:
  • 被引用被引用:0
  • 點閱點閱:113
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  • 下載下載:9
  • 收藏至我的研究室書目清單書目收藏:0
流體在非均質地層的流動遠比在均質的流動複雜。為了研究方便,會將非均質地層視為均質地層再進行研究。在此過程中,經常利用平均的概念,將非均質分佈的滲透率和孔隙率用一個具有代表性的平均數值取代之。因此,本文的主要目的是將非均質地層視為均質地層後,研究兩者之間的地下流體流動行為(壓力及流率)變化。
本研究以達西定率為基礎,推導出平均滲透率估算方程式;以物質平衡法為基礎,推導出平均孔隙率估算方程式。再利用數值模擬法分別計算非均質地層與均質地層,在不同的流體流動狀態及不同操作條件下,比較及研究流體流動的壓力與流率之差異。在本研究中,非均質地層可分為線性流動串聯地層、線性流動並聯地層、徑向流動串聯地層和徑向流動並聯地層四種模式;流體流動狀態則分為穩態流動與暫態流動;操作條件有定壓力操作條件與定流率操作條件兩種。
本研究獲得以下結果,若為穩態流動,平均滲透率估算方程式可以適用於線性流動與徑向流動的地層中。若為暫態流動,對於線性流動並聯地層與徑向流動並聯地層而言,地層越複雜,平均滲透率與孔隙率估算方程式越不適用。對於愈複雜的非均質地層,其誤差越大,非均質分佈越複雜的地層,越難用簡單的平均數值去簡化為均質地層。

The fluid flow in a heterogeneous reservoir is more complex than that in a homogeneous reservoir. To simplify the complexity, the reservoir properties (for example, permeability and porosity) in a heterogeneous reservoir may be replaced by using average reservoir properties. The purpose of this study was to study the pressure and flow rate affected by using average reservoir parameters in a heterogeneous reservoir.
In this study, equations based on Darcy’s law are used to calculate an average permeability for a heterogeneous reservoir by considering flow in series and in parallel. The equations based on the material balance equation are used to calculate an average porosity for a heterogeneous reservoir by considering flow in series and in parallel. The pressures and flow rates from reservoirs of heterogeneous reservoirs and reservoirs with average properties were compared using the results of reservoir simulation studies. The heterogeneous reservoirs considered in this included linear flow bed in series, linear flow bed in parallel, radial flow bed in series, and radial flow bed in parallel. The flow regime was divided into steady-state flow and transient flow. The constant terminal rate and constant terminal pressure of operating conditions were considered in reservoir simulation.
The major results and conclusions obtained from this study are: (1) In steady-state flow, the equation for average permeability estimation can be used in linear flow and radial flow. (2) In transient flow, the equations for average permeability and for average property estimation were incorrect for linear flow and radial flow. (3) For the more complex heterogeneous reservoirs, the error is greater. Therefore, it is difficult to use simple average parameters to simplify a heterogeneous reservoir when it has a complex rather than an average formation.

中文摘要-I
Abstract-III
誌謝-V
目錄-VII
表目錄-XI
圖目錄-XIII
符號說明-XVIII
第一章 緒論-1
1.1 前言-1
1.2 滲透率介紹-4
1.3 孔隙率介紹-5
第二章 研究目的-6
第三章 文獻回顧-7
第四章 理論基礎-11
4.1 平均參數估算方程式-11
4.1.1 平均滲透率估算方程式-11
4.1.1.1 線性流動之平均滲透率估算方程式-11
4.1.1.2 徑向流動之平均滲透率估算方程式-16
4.1.2 平均孔隙率估算方程式-21
4.1.2.1 線性流動之平均孔隙率估算方程式-21
4.1.2.2 徑向流動之平均孔隙率估算方程式-24
4.2 不同流動狀態下流率與壓力方程式-28
4.2.1 線性流動地層在不同流動狀態下流率與壓力方程式-28
4.2.1.1 流體在穩態流動下不同操作條件之生產行為-28
4.2.1.2 流體在暫態流動下不同操作條件之生產行為-30
4.2.2 徑向流動地層在不同流動狀態下流率與壓力方程式-31
4.2.2.1 流體在穩態流動下不同操作條件之生產行為-32
4.2.2.2 流體在暫態流動下不同操作條件之生產行為-33
第五章 研究方法與步驟-35
5.1 非均質地層與均質地層模型設計-36
5.1.1 線性流動非均質與均質地層模式建立-36
5.1.2 徑向流動非均質與均質地層模式建立-37
5.2 數值模式設計-38
5.2.1 線性流動地層數值模式建立-38
5.2.2 徑向流動地層數值模式建立-39
5.3 非均質地層與均質地層之壓力與流率比較-40
5.3.1 線性流動非均質與均質地層之壓力與流率比較-40
5.3.2 徑向流動非均質與均質地層之壓力與流率比較-41
第六章 結果與討論-42
6.1. 非均質模型與均質模型建立-42
6.1.1 線性流動非均質模型與均質模型設計-42
6.1.1.1 滲透率非均質與均質模型設計-42
6.1.1.2 孔隙率非均質與均質模型設計-43
6.1.2 徑向流動非均質模型與均質模型設計-44
6.1.2.1 滲透率非均質與均質模型設計-45
6.1.2.2 孔隙率非均質與均質模型設計-45
6.2 數值模式建立-47
6.2.1 線性流動數值模式建立-47
6.2.2 徑向流動數值模式建立-48
6.3 非均質地層與均質地層之壓力與流率比較-50
6.3.1 滲透率非均質地層與均質地層之壓力與流率比較結果-50
6.3.1.1 線性流動滲透率非均質地層與均質地層之壓力與流率比較結果-50
6.3.1.1.1 穩態流動之不同操作條件結果比較-50
6.3.1.1.2 暫態流動之不同操作條件結果比較-51
6.3.1.2 徑向流動滲透率非均質地層與均質地層之壓力與流率比較結果-53
6.3.1.2.1 穩態流動之不同操作條件結果比較-53
6.3.1.2.2 暫態流動之不同操作條件結果比較-54
6.3.2 孔隙率非均質地層與均質地層之壓力與流率比較結果-55
6.3.2.1 線性流動孔隙率非均質地層與均質地層之壓力與流率比較結果-56
6.3.2.1.1 暫態流動之不同操作條件結果比較-56
6.3.2.2 徑向流動孔隙率非均質地層與均質地層之壓力與流率比較結果-58
6.3.2.2.1 暫態流動之不同操作條件結果比較-58
第七章 結論與建議-60
7.1 結論-60
7.2 建議-62
參考文獻-63

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