天然气地球科学

• 非常规天然气 • 上一篇    下一篇

六盘水地区杨梅树向斜煤层气地质特征与有利开发层段优选

单衍胜,毕彩芹,迟焕鹏,王福国,李惠   

  1. 1.中国地质调查局油气资源调查中心,北京 100083,2.中煤地质工程总公司,北京 100049
  • 收稿日期:2017-08-11 修回日期:2017-12-15 出版日期:2018-01-10 发布日期:2018-01-10
  • 作者简介:单衍胜(1976-),男,山东郓城人,高级工程师,博士,主要从事煤层气、页岩气等非常规油气地质勘探及选区评价研究.E-mail:shanger@sohu.com.
  • 基金资助:
    中国地质调查局油气基础地质调查专项(编号:121201021000150014)资助.
     

Geological characteristics of coalbed methane and optimization for favorable productive intervals of Yangmeishu syncline in Liupanshui area

Shan Yan-sheng,Bi Cai-qin,Chi Huan-peng,Wang Fu-guo,Li Hui   

  1. 1.Oil and Gas Survey Center,China Geological Survey Bureau,Beijing 100083,China;
    2.China Coal Geology Engineering Corporation,Beijing 100049,China
  • Received:2017-08-11 Revised:2017-12-15 Online:2018-01-10 Published:2018-01-10

摘要:

基于3口煤层气参数井实钻资料及煤岩样品测试数据,分析了六盘水地区杨梅树向斜煤层气地质特征,重新估算了区内煤层气地质资源量,优选了5个有利目标层段,并对杨煤参1井3个有利层段开展了分压合采试验,获得了良好的产气效果。研究表明:区内上二叠统龙潭组薄—中厚煤层群发育,可采煤层累积厚度大且以原生结构为主,煤层含气量、含气饱和度及临储比高,平均渗透率达0.229×10-3μm2,煤层气富集与开发条件好。结合参数井实测煤层含气性,重新估算区内煤层气地质资源量为365.97×108m可采资源量为208.64×108m3。综合影响煤层气富集与开发的各项关键参数,认为5#、7#、13#、15#、23#为区内煤层气勘探开发有利层段。依据产层优质性与相近性组合原则,优选杨煤参1井5#、7#和13#煤进行分压合采试验,煤层气井排采过程中套压显现早,压降漏斗扩展迅速,未表现出明显的层间干扰,充分发挥了多煤层合采的资源优势,获得了最高日产气量4 656m3/d、稳定日产气量3 600m3/d的良好产气效果,创西南地区煤层气直井单井日产气量和稳定产气量新高,实现了区域煤层气勘查重大突破。

关键词: 煤层气, 地质特征, 有利开发层段, 优选, 六盘水地区, 杨梅树向斜

Abstract:

Based on the drilling data and coal petrographic test data of three coalbed methane parameter wells,we analyzed the coalbed methane geological characteristic,re-estimated the coalbed methane geological resource and optimized five favorable target intervals of Yangmeishu syncline in Liupanshui area.Simultaneously,the separate pressure production test was performed in the three favorable intervals of Well Yangmeican 1,and finally the productive gas production effect was achieved.The results show that thin and medium-thickness coal seam groups in Longtan Formation of Upper Permian are developed in this area,the recoverable coal seams are dominated by primary structure and possess large accumulation thickness;the gas content,gas saturation and relative reservoir ratio are high enough,the average permeability is 0.229×10-3μm2,the condition of coalbed methane accumulation and development is favorable.Combined with the key parameters of coalbed methane enrichment and exploitation,5#,7#,13#,15# and 23# are regarded as favorable intervals of coalbed methane exploration and development in this area.According to the combination principle of quality and similarity in production layer,we selected 5#,7# and 13# coal seams of Well Yangmeican 1 to conduct separate pressure production test.During the drainage process,the casing pressure appeared early and the pressure drawdown distribution expanded rapidly,interlayer interference did not show in this process.The resource superiority of multi-layer commingled production is fully exerted;the favorable gas production effect of  4 656m3/d in maximum daily output and 3 600m3/d in steady daily output was acquired.This outcome creates new heights of single-well daily output and stable gas production of coalbed methane vertical well in southwest area,and achieves a major breakthrough of regional coalbed methane exploration.

Key words: Coalbed methane, Geological characteristic, Favorable productive interval, Optimal selection, Liupanshui area, Yangmeishu syncline

中图分类号: 

  • TE132.2

[1]Zhao Qingbo,Li Wuzhong,Sun Fenjin.Distribution and accumulation regularity for coalbed methane in China[J].Acta Petrolei Sinica,1997,18(4):1-6.
赵庆波,李五忠,孙粉锦,等.中国煤层气分布特征及高产富集因素[J].石油学报,1997,18(4):1-6.
[2]Cui Yuchao,Teng Zijun,Wang Huaihong,et al.Distribution,development and utilization of CBM from Loangchang Coal mine in Qianxi county,Guizhou Province[J].Natural Gas Geoscience,2011,22(2):367-372.
崔玉朝,滕子军,王怀洪,等.贵州黔西龙场煤矿煤层气资源及开发利用价值[J].天然气地球科学,2011,22(2):367-372.
[3]Qin Yong,Gao Di,Wu Caifang,et al.The Potential and Evalulation of Coalbed Methane in Guizhou Province[M].Xuzhou:China of University Mining and Technology Press,2012:150-192.
秦勇,高弟,吴财芳,等.贵州省煤层气资源潜力预测与评价[M].徐州:中国矿业大学出版社,2012:150-192.
[4]Guo Chen,Xia Yucheng,Lu Lingling,et al.Development features and mechanism of multilayer superimposed independent CBM systems in Bide-Santang Basin,western Guizhou,south China[J].Natural Gas Geoscience,2017,28(4):622-632.
郭晨,夏玉成,卢玲玲,等.黔西比德—三塘盆地多层叠置独立含煤层气系统发育规律与控制机理[J].天然气地球科学,2017,28(4):622-632.
[5]Gui Baolin.Geological characteris and enrichment controlling factors of coalbed methane in Liupanshui region[J].Acta Petrolei Sinica,1999,20(3):31-37.
桂宝林.六盘水地区煤层气地质特征及富集高产控制因素[J].石油学报,1999,20(3):31-37.
[6]Xu Fang,Guo Lijun,Hu Haibo,et al.Sequence stratigraphy and sedimentary environment of the Upper Permian in Liupanshui Coalfield of Guizhou[J].Journal of Beijing Polytechnic College,2012,2(11):7-13.
徐方,郭立君,胡海博,等.贵州六盘水煤田上二叠统沉积环境与层序地层研究[J].北京工业职业技术学院学报,2012,2(11):7-13.
[7]Gao Di,Qin Yong,Yi Tongsheng.Geological condition,exploration and exploitation strategy of coalbed methane resources in Guizhou,China[J].Coal Gelogy of China,2009,21(3):20-23.
高弟,秦勇,易同生.论贵州煤层气地质特点与勘探开发战略[J].中国煤炭地质,2009,21(3):20-23.
[8]Xiong Menghui,Qin Yong,Yi  Tongsheng.Sedimentary patterns and structural controls of Late Permian coal-bearing strata in Guizhou,China[J].Journal of China University of Mining and Technology,2006,35(6):778-782.
熊孟辉,秦勇,易同生.贵州晚二叠世含煤地层沉积格局及其构造控制[J].中国矿业大学学报,2006,35(6):778-782.
[9]Luo Desheng.Coal-forming environments of Late Permian Coal-Bearing strata in Guizhou[J].Coal of China,2000,26(9):2-24.
罗德生.贵州省晚二世含煤建造成煤环境的研究[J].中国煤炭,2000,26(9):2-24.
[10]Xu Binbin,He Mingde.Coal Field Geology in Guizhou Province[M].Xuzhou:China University of Mining and Technology Press,2003.
徐彬彬,何明德.贵州煤田地质[M].徐州:中国矿业大学出版社,2003.
[11]Liu Yijun,Zeng Xiangzhou,Hu Gang,et al.Characteristics and technical measures of exploration and development of coalbed methane reservoir in Guizhou Province:A case of Bide-Santang area[J].Coal Geology & Exploration,2017,45(1):71-74.
刘贻军,曾祥洲,胡刚,等.贵州煤层气储层特征及勘探开发技术对策——以比德—三塘盆地为例[J].煤田地质与勘探,2017,45(1)71-74.
[12]Luo Kaiyan,Jin Jun,Zhao Lingyun,et al.Feasibility study on combined seam gas drainage under condition of seam group in Songhe mine field[J].Coal Science and Technology,2016,44(2):73-77,103.
罗开艳,金军,赵凌云,等.松河井田煤层群条件下合层排采煤层气可行性研究[J].煤炭科学技术,2016,44(2):73-77,103.
[13]Wang Wanhong,Zheng Yuzhu.Analysis of adaptation conditions for CBM separate layer fracturing and multi-layer drainage technologies:A case study of Wubu mining area[J].Coal Geology & Exlortion,2014,42(4):36-38.
汪万红,郑玉柱.煤层气分压合排技术适应条件分析[J].煤田地质与勘探,2014,42(4):36-38.
[14]Peng Longshi,Qiao Lan,Gong Min,et al.Factors affecting the roduction performance of coalbed methane wells with multiplezone[J].Journal of China Coal Society,2014,39(10):2060-2067.
彭龙仕,乔兰,龚敏,等.煤层气井多层合采产能影响因素[J].煤炭学报,2014,39(10):2060-2067.
[15]Ao Xianshu,Cao Liwen,Jia Jinlong,et al.Study on optimization method of coalbed methane commingled development layer section in Songhe mine field,west Guizhou[J].Coal Science and Technology,2016,44(2):68-72.
敖显书,曹丽文,贾金龙,等.黔西松河井田煤层气合层开发层段优选方法研究[J].煤炭科学技术,2016,44(2):68-72.
[16]Zhou Xiaozhi,Sang Shuxun,Yi Tongsheng,et al.Damage mechanism of upper exposed producing layers during CBM multi-coal seam development[J].Natural Gas Industry,2016,36(6):52-59.
周效志,桑树勋,易同生,等.煤层气合层开发上部产层暴露的伤害机理[J].天然气工业,2016,36(6):52-59.

[1] 吴丛丛,杨兆彪,孙晗森,张争光,李庚,彭辉. 云南恩洪向斜西南区垂向流体能量特征及有序开发建议[J]. 天然气地球科学, 2018, 29(8): 1205-1214.
[2] 邢 舟,曹高社,毕景豪,周新桂,张交东. 南华北盆地禹州地区ZK0606钻孔上古生界煤系烃源岩评价[J]. 天然气地球科学, 2018, 29(4): 518-528.
[3] 赵一民,陈强,常锁亮,田忠斌,桂文华. 基于边界要素二分的煤层气封存单元分类与评估[J]. 天然气地球科学, 2018, 29(1): 130-139.
[4] 张洲,王生维,周敏. 基于构造裂隙填图技术的煤储层裂隙发育特征预测与验证[J]. 天然气地球科学, 2017, 28(9): 1356-1362.
[5] 金凤鸣,贾善坡,张辉,林建品,尚翠娟,刘静,刘团辉,赵政嘉,席增强. 京津冀地区断陷盆地含水层储气库评价体系及目标优选[J]. 天然气地球科学, 2017, 28(9): 1433-1445.
[6] 王玫珠,王勃,孙粉锦,赵洋,丛连铸,杨焦生,于荣泽,罗金洋,周红梅. 沁水盆地煤层气富集高产区定量评价[J]. 天然气地球科学, 2017, 28(7): 1108-1114.
[7] 郭广山,柳迎红,张苗,吕玉民. 沁水盆地柿庄南区块排采水特征及其对煤层气富集的控制作用[J]. 天然气地球科学, 2017, 28(7): 1115-1125.
[8] 马东民,李沛,张辉,李卫波,杨甫. 长焰煤中镜煤与暗煤吸附/解吸特征对比[J]. 天然气地球科学, 2017, 28(6): 852-862.
[9] 朱学申,梁建设,柳迎红,王存武,廖夏,郭广山,吕玉民. 煤层气井产水影响因素及类型研究——以沁冰盆地柿庄南区块为例[J]. 天然气地球科学, 2017, 28(5): 755-760.
[10] 倪小明, 李志恒,王延斌,吴建光. 沁水盆地中部断层发育区煤层气开发有利块段优选[J]. 天然气地球科学, 2017, 28(4): 602-610.
[11] 郭晨,夏玉成,卢玲玲,任亚平. 黔西比德—三塘盆地多层叠置独立含煤层气系统发育规律与控制机理[J]. 天然气地球科学, 2017, 28(4): 622-632.
[12] 申建,张春杰,秦勇,张兵. 鄂尔多斯盆地临兴地区煤系砂岩气与煤层气共采影响因素和参数门限[J]. 天然气地球科学, 2017, 28(3): 479-487.
[13] 郭晓龙,李璇,代春萌,边海军,许旭华,许晶. 煤层气地球物理预测方法[J]. 天然气地球科学, 2017, 28(2): 287-295.
[14] 马平华,霍梦颖,何俊,彭英明,邵先杰,接敬涛. 煤层气井压裂影响因素分析与技术优化——以鄂尔多斯盆地东南缘韩城矿区为例[J]. 天然气地球科学, 2017, 28(2): 296-304.
[15] 孙超群,李术才,李华銮,崔伟,宋曙光. 煤层气藏应力—渗流流固耦合模型及SPH求解[J]. 天然气地球科学, 2017, 28(2): 305-312.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
No Suggested Reading articles found!