非常规天然气

基于复合解吸理论的煤层气物质平衡方法

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  • 西南石油大学油气藏地质及开发工程国家重点实验室,四川 成都 610500
朱苏阳(1989-),男,江苏如皋人,博士研究生,主要从事油藏工程和渗流力学研究. E-mail:zhusuyang1989@aliyun.com.

收稿日期: 2015-09-25

  修回日期: 2016-01-05

  网络出版日期: 2019-09-19

基金资助

国家自然科学基金(编号:51474179);国家自然科学基金青年基金(编号:51504205)联合资助.

The coalbed methane material balanced equation based on the compound desorption

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  • State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu 610500,China

Received date: 2015-09-25

  Revised date: 2016-01-05

  Online published: 2019-09-19

摘要

通过分析煤层气吸附特点,在液相吸附理论基础上描述了煤层气复合解吸过程。对于初始状态具自由气的煤层,建立了考虑液相吸附及复合解吸的水侵气藏物质平衡方程,并利用气藏A压力对其进行线性化。气藏A压力与H压力下的生产指示曲线差值即煤层气的解吸气量。同时,对于初始状态下没有自由气的煤层气藏,根据King方法建立了考虑复合解吸作用的煤层气物质平衡通式。实例计算表明:该煤层气的物质平衡回归直线过原点,说明在初始状态下并没有自由气;复合解吸下的物质平衡直线斜率较气相吸附的回归直线小,复合解吸对产量的影响更大;复合解吸作用会降低煤层气的可采储量。

本文引用格式

朱苏阳, 杜志敏, 李传亮, 彭小龙 . 基于复合解吸理论的煤层气物质平衡方法[J]. 天然气地球科学, 2016 , 27(6) : 1128 -1133 . DOI: 10.11764/j.issn.1672-1926.2016.06.1128

Abstract

By analyzing CBM(coalbed methane) desorption behavior,the compound desorption process was described.Since some CBM reservoirs have initial free gas,the A persuade pressure MBE(material balance equation) is established according to the H persuade pressure MBE.The difference between A and H persuade pressure is desorption gas volume.Meanwhile,another CBM MBE is established to forecast the CBM production behavior without the initial free gas based on the King’s method.The case calculation shows that the regression line passes the origin point,which indicates that this reservoir has no initial free gas.And the slope of the regression line with the compound desorption is smaller than the gas desorption,which shows the compound desorption will influence more on the production.The compound desorption can reduce the recoverable reserve of the coalbed methane.

参考文献

[1]Qiu Zhen,Zou Caineng,Li Jianzhong,et al.Unconventional petroleum resources assessment:Progress and future prospects[J].Natural Gas Geoscience,2013,24(2):238-246.[邱振,邹才能,李建忠,等.非常规油气资源评价进展与未来展望[J].天然气地球科学,2013,24(2):238-246.]
[2]Shang Yingxue,Li Xiaoping,Song Li.Material balance equation and reserves calculation method considering water soluble gas for shale gas reservoirs[J].Natural Gas Geoscience,2015,26(6):1183-1189.[尚颖雪,李晓平,宋力.考虑水溶气的页岩气藏物质平衡方程及储量计算方法[J].天然气地球科学,2015,26(6):1183-1189.]
[3]Zhang Jinliang,Liu Jun,Li Linxin,et al.Phase Transition exploitation of condensate gas reservoir using black oil model method and mass balance principle[J].Natural Gas Geoscience,2008,19(3):419-422.[张金良,刘军,李林新,等.用黑油模型方法和物质平衡原理处理凝析气藏的相变开采问题[J].天然气地球科学,2008,19(3):419-422.]
[4]Li Yanli .Calculation methods of shale gas reserves[J].Natural Gas Geoscience,2009,20(3):466-470.[李艳丽.页岩气储量计算方法探讨[J].天然气地球科学,2009,20(3):466-470.]
[5]King G R.Material-balance techniques for coal-seam and Devonian shale gas reservoirs with limited water influx[J].SPE Reservoir Engineering,SPE-20730-PA,1993,8:67-71.
[6]Zhang Xianmin,Feng Qihong,Wang Xusheng,et al.Establishment and application of material balance equations for low-rank coalbed methane reservoirs[J].Natural Gas Geoscience,2013,24(6):1311-1315.[张先敏,冯其红,汪旭升,等.低煤阶煤层气藏物质平衡方程建立及应用[J].天然气地球科学,2013,24(6):1311-1315.]
[7]Mssszi D.Cavity stress-relief method for recovering methane from coal seams[C]// Schwochow S D,Murray D K ,Fahy M F (eds.).Coalbed Methane of Western North America.Denver,Rocky Mountain Association of Geologists,1991:149-154.
[8]Ahmed T H,Centilmen A,Roux B P.A generalized material balance equation for coalbed methane reservoirs[C].SPE Annual Technical Conference and Exhibition.SPE 102638-MS,2006,24-27 September,San Antonio,Texas,USA.
[9]Zhao Jin,Zhang Suian,Cao Lihu.Comparison of Experimental Adsorption between Shale Gas and Coalbed Gas[J].Natural Gas Geoscience,2013,24(1):176-181.[赵金,张遂安,曹立虎.页岩气与煤层气吸附特征对比实验研究[J].天然气地球科学,2013,24(1):176-181.]
[10]Peng Jinning,Fu Xuehai,Shen Jian,et al.Study of the desorption characteristics of coalbed methane in Panzhuang mining area[J].Natural Gas Geoscience,2005,16(6):768-770.[彭金宁,傅雪海,申建,等.潘庄煤层气解吸特征研究[J].天然气地球科学,2005,16(6):768-770.]
[11]Deng Guanghong,Luo Keyong,Ma Dongmin,et al.Mathematical model of fluid- solid coupling seepage in CBM production[J].Natural Gas Geoscience,2011,22(4):723-727.[邓广弘,罗克勇,马东民,等.煤层气储层流固耦合数学模型[J].天然气地球科学,2011,22(4):723-727.]
[12]Yang Zhaozhong,Han Jinxue,Fu Qiang,et al.The modelcular simulation of the influence of H2O on CH4 desorption and diffusion in pores with different size of coal reservoirs[J].Natural Gas Geoscience,2015,26(5):951-957,985.[杨兆中,韩金轩,付蔷,等.煤储层不同尺寸孔中H2O对CH4解吸扩散的分子模拟研究[J].天然气地球科学,2015,26(5):951-957,985.]
[13]Zhao Yuji,Guo Wei,Xiong Wei,et al.Study of impact factors on shale gas adsorption and desorption[J].Natural Gas Geoscience,2014,25(6):940-946.[赵玉集,郭为,熊伟,等.页岩等温吸附/解吸影响因素研究[J].天然气地球科学,2014,25(6):940-946.]
[14]Li Chuanliang,Peng Zhaoyang,Zhu Suyang.Coalbed methane is adsorption gas underground[J].Lithologic Reservoirs,2013,25(2):112-115.[李传亮,彭朝阳,朱苏阳.煤层气其实是吸附气[J].岩性油气藏,2013,25(2):112-115.]
[15]Li Xiangfang,Pu Yunchao,Sun Changyu,et al.Recognition of absorption/desorption theory in coalbed methane reservoir and shale gas reservoir[J].Acta Petrolei Sinica,2014,35(6):1113-1129.[李相方,蒲云超,孙长宇,等.煤层气与页岩气吸附/解吸的理论再认识[J].石油学报,2014,35(6):1113-1129.]
[16]Zhu Suyang,Li Chuanliang,Du Zhimin,et al.Discussion on liquid phase adsorption of coalbed methane[J].Xinjiang Petroleum Geology,2015,36(5):101-104.[朱苏阳,李传亮,杜志敏,等.也谈煤层气的液相吸附[J].新疆石油地质,2015,36(5):101-104.]
[17]Qin Yong,Song Quanyou,Fu Xuehai.Discussion on reliability for co-mining the coalbed gas and normal petroleum and natural gas:Absorptive effect of deep coal reservoir under condition of balanced water[J].Natural Gas Geoscience,2005,16(4):492-49.[秦勇,宋全友,傅雪海.煤层气与常规油气共采可行性探讨:深部煤储层平衡水条件下的吸附效应[J].天然气地球科学,2005,16(4):492-498.]
[18]Kong Xiangwen,Zhao Qingbo,Sun Fenjin,et al.New advances of productive & enriching patterns and production characteristics of coalbed methane in China[J].Natural Gas Geoscience,2011,22(4):738-746.[孔祥文,赵庆波,孙粉锦,等.煤层气高产富集规律及开采特征研究新进展[J].天然气地球科学,2011,22(4):738-746.]
[19]Yan Xiaoci,Luo Mingdao.Interface Chemistry[M].Beijing:Chemical Industry Publishing House,2004:137-146.[颜肖慈,罗明道编.界面化学[M].北京:化学工业出版社,2004:137-146.]
[20]Zhu Suyang,Li Chuanliang,Du Zhimin,et al.Compound desorption model of coalbed methane[J].Journal of China University of Mining & Technology,2016,45(2):316-324.[朱苏阳,李传亮,杜志敏,等.煤层气的复合解吸模式研究[J].中国矿业大学学报,2016,45(2):316-324.]
[21]Li Fangjian,Zhu Kai.Reservoirs  characteristics of  No.10 coal seam in Chaoyang Mineing area in Baoqing,Heilongjiang[J].Coal Technology,2006,25(6):122-123.[李方健,祝恺.黑龙江省宝清县朝阳区10号煤层特征[J].煤炭技术,2006,25(6):122-123.]
[22]Li Chuangliang.Fundamentals of Reservoir Engineering[M].Beijing:Petroleum Industry Press,2011:77-141.[李传亮.油藏工程基本原理[M].北京:石油工业出版社,2011:77-141.]
[23]Sang Shuxun,Zhu Yanming,Zhang Jing et al.The experiment research on the Liquid water influence on methane adsorption in coal:case on southern Qinshui Basin coalbed methane reservoir[J].Chinese Science Bulletin,2005,50(S1):70-75.[桑树勋,朱炎铭,张井,等.液态水影响煤吸附甲烷的实验研究:以沁水盆地南部煤储层为例[J].科学通报,2005,50(S1):70-75.]
[24]Hu Suming,Li Xiangfang.Material balance equation of coalbed methane reservoir with consideration of self-adjustment effect of coal[J].Natural Gas Exploration and Development,2010,33(1):38-41.[胡素明,李相方.考虑煤自调节效应的煤层气藏物质平衡方程[J].天然气勘探与开发,2010,33(1):38-41.]

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