Seepage Field Analysis of Fractured Gas Reservoir with Different Completion Methods
Received date: 2011-05-06
Revised date: 2011-09-30
Online published: 2011-12-10
In this paper,we set up the two finite element models for the perforated completion of fracture sequence and the screen completion. In the sequence model,there are many natural fractures,some fractures directly touch well wall,others are connected each other,causing the complex seepage. It is difficult to calculate by the conventional method. Thus,we have to use finite element method. Based on ANSYS software,we use the same material for the sequence and fracture in the finite element model. We also introduce the amplification factor to describe the effect of fracture to fluid conductivity. Since the polluted belt of the wall and fractures by drill fluid exists,we introduce the pollution coefficient to describe to the permeability decrease in the polluted belt. We use the simulating calculation of two models to get both pressure distribution and seepage flow velocity field,and then compare the results of tow models to give the theoretical evidence for well completion system election.
Wu Xin-yuan,Lian Zhang-hua,Meng Ying-feng,Wei Chen-xing . Seepage Field Analysis of Fractured Gas Reservoir with Different Completion Methods[J]. Natural Gas Geoscience, 2011 , 22(6) : 1123 -1127 . DOI: 10.11764/j.issn.1672-1926.2011.06.1123
［1］Simaihuf E M.Basic Theory and Techniques of Fractured Reservoir
[JP]Exploration［M］.Chen Dingbao,Zeng Zhiqiong,Wu Liyun，et al.Translated.Beijing: Petroleum Industry Press,1985:3-5.［斯麦霍夫 E M.裂缝性油气储集层勘探的基本理论与方法［M］.陈定宝，曾志琼，吴丽芸,等译.北京:石油工业出版社,1985:3-5.］
［2］Li Chuandong.Recovering technology of fractured and watered gas reservoirs［J］.Natural Gas Industry,2004,23(supplement):123-126.［李川东.裂缝性有水气藏开采技术浅析［J］.天然气工业，2004，23(增刊):123-126.］
［3］Mcleod H O.The effect of perforating conditions on well performance［J］.Journal of Petroleum Technology,1983,(1):31-39.
[JP]
［4］Langsrud,Oyvind,Computas A S.Simulation of Two-Phase Flow by Finite Element Methods［C］.SPE 5725.SPE Symposium on Numerical Simulation of Reservoir Performance.Los Angeles:Society of Petroleum Engineers,1976:19-20.
［5］Li Daqi,Kang Yili,Zhang Hao.New evaluation method of permeability stress sensitivity based on visual fracture aperture measurement［J］.Natural Gas Geoscience,2011,22(3):494-500.［李大奇,康毅力,张浩.基于可视缝宽测量的储层应力敏感性评价新方法［J］.天然气地球科学，2011,22(3):494-500.］
［6］Long Pengyu,Zhang Jinchuan,Tang Xuan,et al.Feature of muddy shale fissure and its effect for shale gas exploration and development［J］.Natural Gas Geoscience,2011,22(3):373-382.［龙鹏宇,张金川,唐玄,等.泥页岩裂缝发育特征及其对页岩气勘探和开发的影响［J］.天然气地球科学，2011,22(3):373-382.］
［7］Li Xiaoping,Zhao Birong.Study of productivity analysis method for gas-water well［J］.Well Testing,2001,10(4):8-10.［李晓平，赵必荣.气水两相流井产能分析方法研究［J］.油气井测试， 2001，10(4):8-10.］
［8］Guo Xiao,Du Zhimin,Chen Xiaofan,et al.New advancement of percolation study on fractured acid gas reservoir［J］.Natural Gas Industry,2006,26(1):30-33.［郭肖，杜志敏，陈小凡，等.高含硫裂缝性气藏流体渗流规律研究进展［J］.天然气工业，2006,26(1):30-33.］
［9］Lian Zhanghua,Meng Yingfeng,Dong Min,et al.A study on application of 2-D finite element heat flow model to perforated well［J］.Natural Gas Industry,2000,20(4):49-53.［练章华，孟英峰，董敏，等.二维有限元热流模型在射孔完井中的应用研究［J］.天然气工业,2000,20(4):49 -53.］
［10］Dong Pingchuan,Han Dejin,Niu Yanliang,et al.Object-oriented finite element programming for multiphase seepage in an oil reservoir［J］.Rock and Soil Mechanics,2009,30(4):1115-1130 .［董平川，韩德金，牛彦良，等.油藏多相渗流的面向对象有限元程序设计［J］.岩土力学，2009,30(4)：1115-1130.］
［11］Zhao Min.Studies of Flow Behaviors of Hydraulic Fracture in Oil Reservoir with Finite Element Method［D］.Graduate School of Chinese Academy of Science,2006.［赵敏.油藏中人工裂缝渗流规律的有限元法分析［D］.中国科学院研究生院，2006.］
［12］Lian Zhanghua,Meng Yingfeng,Zhu Jianhua.Application of thermal fluid field-percolation field simulation to perforated completion［J］.Xinjiang Petroleum Geology,2005,26(1):73-76.［练章华，孟英峰，朱建华.用热流场模拟渗流场在射完井中的应用［J］.新疆石油地质,2005,26(1):73-76.］
［13］Al-Obaydi M A,Samadhiya N K,Viladkar M N.3D Analysis of Coupled Stress-Flow in Jointed Rock Masses Using Finite Element Method［C］.The 42nd U.S.Rock Mechanics Symposium (USRMS).San Francisco:American Rock Mechanics Association,2008.
［14］Nicholson J P W,Hunt S P,Adelaide U.Distinct Element Analysis of Borehole Instability in Fractured Petroleum Reservoir Seal Formation［C］.SPE88610.SPE Asia Pacific Oil and Gas Conference and Exhibition.Perth:Society of Petroleum Engineers,2004:18-20.
/
| 〈 |
|
〉 |
甘公网安备 62010202000678号