利用岩心资料确定低渗透气藏产气界面的新方法

刘子雄; 王杏尊; 李敬松; 黄子俊; 吴英

doi:10.11911/syztjs.201606015

利用岩心资料确定低渗透气藏产气界面的新方法

中海油田服务股份有限公司油田生产研究院, 天津 300450

基金项目:

中海油田服务股份有限公司科研项目“山西致密气压裂增产效果综合评价研究及应用”（编号：YSB16YF004）资助。

详细信息

作者简介:
刘子雄(1982-),男,湖北随州人,2006年毕业于长江大学石油工程专业,2009年获长江大学油气田开发工程专业硕士学位,工程师,主要从事油气田开发方面的研究工作。

中图分类号: TE311
计量
- 文章访问数: 6789
- HTML全文浏览量: 84
- PDF下载量: 10677
出版历程
- 收稿日期: 2016-02-03
- 修回日期: 2016-10-11
- 刊出日期: 1899-12-31

New Technique in the Identification of Water-Gas Interface in Low Permeability Gas Reservoirs from Core Data

Production Optimization R & D Institute, China Oilfield Services Ltd., Tianjin, 300450, China

摘要

摘要: 低渗透气藏的产气界面对于井位部署和射孔层位优化非常重要，但常用产气界面计算方法忽略了气水过渡带的影响并存在较多的限制条件。根据4个低渗透气田729块岩心的试验数据，建立了束缚水饱和度计算模型，12口井的测井解释结果表明该模型能够准确判断产出流体类型；根据岩心渗透率对202块岩心毛细管压力曲线进行分类和归一化处理，得到了气柱高度与毛细管压力、含气饱和度的计算关系式，建立了产气界面深度的计算模型。应用该模型对A气田2口探井的S层产气界面进行了计算，计算结果与实际实施井一致，证明该计算模型的计算结果准确可靠。研究表明，利用岩心资料可以准确确定低渗透气藏的产气界面，从而指导井位部署和射孔优化。
- 低渗透气藏 /
- 产气界面 /
- 束缚水饱和度 /
- 气柱高度 /
- 毛细管压力
Abstract: The accurate determination of gas-production interface is crucial in the well location and perforation interval selection. With some preconditions, the conventional techniques used in determination of the interface neglect the effect of the gas-water transition zone. In this paper, a model to calculate irreducible water saturation from tested data of 729 core samples of four low-permeability gas fields was built. Logging data interpretation results from 12 wells showed that the new model could accurately determine the produced fluid type. Through classification and normalization of capillary forces in accordance with core permeability of 202 samples, correlation among heights of gas column, capillary forces and gas saturation can be constructed. The model then was used in calculation of gas production interface in formation S of A Gas Field in 2 exploration wells. The interface predicted from the model was then confirmed in practice and accuracy of the calculation model was also verified. Research results dsmonstrate that gas-production interface in low-permeability gas reservoirs can be determined accurately by using core data to optimize well location and perforation interval.
- low permeability gas reservoir /
- gas-production interface /
- irreducible water saturation /
- gas column height /
- capillary force

HTML全文

参考文献(17)

[1]	罗兴平,张大勇,王燕,等.MDT单压力点确定油/气/水界面方法[J].测井技术,2011,35(2):180-182. LUO Xingping,ZHANG Dayong,WANG Yan,et al.A method of determining oil/gas/water interface by MDT single pressure data point[J].Well Logging Technology,2011,35(2):180-182.
[2]	伍藏原,陈文龙.利用试井数据确定凝析气藏气水界面位置[J].油气井测试,2004,13(3):16-17. WU Zangyuan,CHEN Wenlong.Determining depth of gas and water interface in condensate gas reservoir using test data[J].Well Testing,2004,13(3):16-17.
[3]	丁铃.确定气水界面的新方法[J].油气井测试,2007,16(3):28-30. DING Ling.A new way to determine gas and water interface[J].Well Testing,2007,16(3):28-30.
[4]	李成,孙来喜,袁京素,等.低渗透气藏气水界面预测新方法[J].钻采工艺,2009,32(3):60-62. LI Cheng,SUN Laixi,YUAN Jingsu,et al.A new prediction method of gas/water interface in low permeability gas reservoir[J].Drilling Production Technology,2009,32(3):60-62.
[5]	华锐湘,贾英兰,李清,等.涩北气田气水分布及气水运动规律分析[J].天然气工业,2009,29(7):68-71. HUA Ruixiang,JIA Yinglan,LI Qing,et al.An analysis of gas-water distribution and its movement law in the Sebei Gas Field[J].Natural Gas Industry,2009,29(7):68-71.
[6]	李爱国,易海永,涂建斌,等.压力交会法确定ZG气田石炭系气藏气水界面[J].天然气工业,2005,25(增刊A):35-37. LI Aiguo,YI Haiyong,TU Jianbin,et al.Determining the gas-water interface of carboniferous gas reservoir in ZG Field by pressure intersection method[J].Natural Gas Industry,2005,25(supplement A):35-37.
[7]	华永川.川东北飞仙关组鲕滩气藏气水界面预测方法[J].天然气工业,2004,24(8):76-77. HUA Yongchuan.Prediction method of gas-water interface for oolitic beach reservoir of Feixianguan Group in Northeast Sichuan[J].Natural Gas Industry,2004,24(8):76-77.
[8]	何更生.油层物理[M].北京:石油工业出版社,1994:80-86. HE Gengsheng.Reservoir physics[M].Beijing:Petroleum Industry Press,1994:80-86.
[9]	刘子雄.低渗气藏可动水识别方法研究[J].石油地质与工程,2016,30(2):93-95,135. LIU Zixiong.Movable water recognition method research of low permeability gas reservoir[J].Petroleum Geology and Engineering,2016,30(2):93-95,135.
[10]	邢会民.基于常规测井资料的束缚水饱和度综合确定方法研究[J].钻采工艺,2010,33(增刊1):37-40. XING Huimin.Comprehensive determination method study on the irreducible water saturation based on the routine logging data[J].Drilling Production Technology,2010,33(supplement 1):37-40.
[11]	高华,高楚桥,胡向阳.莺歌海盆地束缚水饱和度影响因素研究[J].石油物探,2005,44(2):158-159. GAO Hua,GAO Chuqiao,HU Xiangyang.Influential factors of irreducible water saturation in Yinggehai[J].Geophysical Prospecting for Petroleum,2005,44(2):158-159.
[12]	成志刚,王黎.利用NMR资料建立束缚水解释模型[J].江汉石油学院学报,2003,25(2):66-67. CHENG Zhigang,WANG Li.Establishment of bound water interpreting model with nuclear magnetic resonance(NMR)data[J].Journal of Jianghan Petroleum Institute,2003,25(2):66-67.
[13]	金燕.测井模糊聚类法在复杂碳酸盐岩气藏含气面积圈定中的应用[J].天然气工业,1997,17(2):24-27. JIN Yan.Application of logging fuzzy clustering procedure in delimitating the gas bearing area of complex carbonate reservoirs[J].Natural Gas Industry,1997,17(2):24-27.
[14]	李宁,周克明,张清秀,等.束缚水饱和度实验研究[J].天然气工业,2002,22(增刊1):110-113. LI Ning,ZHOU Keming,ZHANG Qingxiu,et al.Experimental research on irreducible water saturation[J].Natural Gas Industry,2002,22(supplement 1):110-113.
[15]	邸世祥.碎屑岩储集层的孔隙结构及其成因与对油气运移的控制作用[M].西安:西北大学出版社,1991:50-56. DI Shixiang.Pore structure clastic reservoir and its control on hydrocarbon migration[M].Xi’an:Northwestern University Press,1991:50-56.
[16]	廖明光,李士伦,谈德辉.砂岩储层渗透率与压汞曲线特征参数间的关系[J].西南石油学院学报,2001,23(4):5-8. LIAO Mingguang,LI Shilun,TAN Dehui.Relationship between permeability and mercury injection parameters curve for sandstone reservoir[J].Journal of Southwest Petroleum Institute,2001,23(4):5-8.
[17]	杨宇,周文,林璠,等.一种新的致密气藏平均毛管压力计算模型[J].成都理工大学学报(自然科学版),2014,41(6):768-772. YANG Yu,ZHOU Wen,LIN Fan,et al.A new method for computing average capillary pressure curve of tight gas reservoir[J].Journal of Chengdu University of Technology(Science Technology Edition),2014,41(6):768-772.