基于层次分析法的煤储层构造复杂程度定量评价
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摘要
为研究贵州织纳煤田比德区块6号主采煤储层构造复杂程度,选取构造曲率、断层强度、断层密度、断层分形维数等4个参数,采用层次分析法构建了构造复杂程度评价指标体系;结合分形理论及区块内断层、褶皱发育和分布情况,对6号煤储层构造复杂程度进行了定量化研究和评价,划分了煤储层构造复杂程度分区。结果表明:研究区构造复杂程度类型主要为简单和中等,构造复杂区多集中在区块边缘断裂和大型褶皱发育地带;构造复杂程度主要受控于岩脚向斜及阿弓向斜等大型褶皱,断层在一定程度上加剧了煤储层的复杂性,说明区块内构造对6号煤储层的控制作用极为显著。研究结果可为该区煤层气勘探开发提供理论依据。
In order to study the structural complexity of main coal seam No. 6 in Bide block,Zhina coalfield,Guizhou province,the four parameters of the structural curvature,fault strength,fault density and fault fractal dimension were chosen to construct an evaluation index system for the complexity by using analytic hierarchy process. Combining the fractals theory and the development with distribution of faults and folds in the block,the complexity of the structure of coal seam No. 6 was quantitatively studied and evaluated,and the complexity of reservoir structure was zoned. The results showed that the types of the tectonic complexity in the study area were mainly simple and moderate,and the structural complex areas were mostly concentrated in the fringe of the block where developed faults and large folds; the complexity of the structure was mainly controlled by large folds such as Yanjiao syncline and Agong syncline. The faults exacerbated the complexity of the reservoir to a certain extent which indicated the structures within the block had a significant control over coal seam No. 6.
In order to study the structural complexity of main coal seam No. 6 in Bide block,Zhina coalfield,Guizhou province,the four parameters of the structural curvature,fault strength,fault density and fault fractal dimension were chosen to construct an evaluation index system for the complexity by using analytic hierarchy process. Combining the fractals theory and the development with distribution of faults and folds in the block,the complexity of the structure of coal seam No. 6 was quantitatively studied and evaluated,and the complexity of reservoir structure was zoned. The results showed that the types of the tectonic complexity in the study area were mainly simple and moderate,and the structural complex areas were mostly concentrated in the fringe of the block where developed faults and large folds; the complexity of the structure was mainly controlled by large folds such as Yanjiao syncline and Agong syncline. The faults exacerbated the complexity of the reservoir to a certain extent which indicated the structures within the block had a significant control over coal seam No. 6.
引文
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[13]杨兆彪,秦勇,高弟.黔西比德-三塘盆地煤层群含气系统类型及其形成机理[J].中国矿业大学学报,2011(2):215-220.YANG Z B,QIN Y,GAO D. Type and geological controls of coalbed methane-bearing system under coal seam groups from Bide-Santang basin,western Guizhou[J]. Journal of China University of Mining&Technology,2011(2):215-220.
[14]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.GUO C,XIA Y C,LU L L,et al. Development features and mechanism of multilayer superimposed independent CBM system in bide-santang basin,western Guizhou,south China[J]. Natural Gas Geoscience,2017,28(4):622-632.
[15]梁冲冲,吴财芳,李腾.多煤层叠置独立含气系统中煤储层孔隙特征研究[J].煤炭科学技术,2013(6):104-107.LIANG C C,WU C F,LI T. Study on pore features of coal reservoir in multi superimposed independent gasbearing system[J]. Coal Science and Technology,2013(6):104-107.
[16]孙昌花,唐书恒,闫凯.比德-三塘盆地比德区块煤储层特征及有利勘探区评价[J].中国煤炭地质,2015(11):14-17.SUN C H,TANG S H,YAN K. Coal reservoir features and favorable exploration area evaluation in Bide block,Bide-Santang basin[J]. Coal Geology of China,2015(11):14-17.
[17]陈善成,姚多喜,田强国,等.祁东煤矿6_1煤地质构造复杂程度定量评价[J].煤炭科学技术,2010(3):101-103.CHEN S C,YAO D X,TIAN Q G,et al. Quantitative assessment of geological structure complicated degree of No. 61 seam in Qidong mine[J]. Coal Science and Technology,2010(3):101-103.
[18]王肖.滇东老厂矿区煤层气地质特征及甜点区段优选[D].徐州:中国矿业大学,2017.WANG X. Geological characteristic of coalbed methane and optimization of sweet spots in laochang mining wrea of eastern Yunnan province[D]. Xuzhou:China University of Mining and Technology,2017.
[19]黄丹,廖太平,邓吉州,等.分形理论在断裂构造研究中的应用前景[J].重庆科技学院学报(自然科学版),2010(6):83-85.HUANG D,LIAO T P,DENG J Z,et al. Application prospect of fractal theory in fault structure study[J].Journal of Chongqing University of Science and Technology(Natural Science Edition),2010(6):83-85.
[20]冯士安,肖建辉,葛英豪.基于分形理论的许疃矿煤层顶板结构类型划分[J].煤炭科学技术,2009(9):107-109.FENG S A,XIAO J H,GE Y H. Classification of seam roof structure type in Xutuan mine based on fractal theory[J]. Coal Science and Technology,2009(9):107-109.
[21]肖建辉.许疃煤矿8_2煤层顶板工程地质特性及其稳定性评价[D].淮南:安徽理工大学,2009.XIAO J H. Research on engineering geological properties and stability of the 82 coal seam’s roof of Xutuan coal mine[D]. Huainan:Anhui University of Science and Technology,2009.
[22]邓雪,李家铭,曾浩健,等.层次分析法权重计算方法分析及其应用研究[J].数学的实践与认识,2012(7):93-100.DENG X,LI J M,ZENG H J,et al. Research on computation methods of AHP weight vector and its applications[J]. Mathematics in Practice and Theory,2012(7):93-100.
[23]张小东,张硕,孙庆宇,等.基于AHP和模糊数学评价地质构造对煤层气产能的影响[J].煤炭学报,2017,42(9):385-2392.ZHANG X D,ZHANG S,SUN Q Y,et al. Evaluating the influence of geological structure to CBM productivity based on AHP and fuzzy mathematics[J]. Journal of China Coal Society,2017,42(9):2385-2392.
[2]王宁,王立志,周芊芊.延川南区块煤层气单井产能影响因素分析[J].油气藏评价与开发,2012,2(5):78-82.WANG N,WANG L Z,ZHOU Q Q. Influence factors on production of CBM wells in south Yanchuan block[J].Reservoir Evaluation and Development,2012,2(5):78-82.
[3]方爱民,侯泉林,琚宜文,等.不同层次构造活动对煤层气成藏的控制作用[J].中国煤炭地质,2005,17(4):15-20.FANG A M,HOU Q L,JU Y W,et al. A study on control action of tectonic activity on CBM pool from various hierarchies[J]. Coal Geology of China,2005,17(4):15-20.
[4]李腾.不同构造条件下多煤层区煤层气井井型井网优化设计[D].徐州:中国矿业大学,2014.LI T. Coalbed methane well well-type and pattern optimal design in the multiple coal seams area with different structure conditions[D]. Xuzhou:China University of Mining and Technology,2014.
[5]李家宏,朱炎铭,唐鑫,等.唐山矿西南区构造复杂程度的熵函数评价[J].煤田地质与勘探,2015,43(3):6-10.LI J H,ZHU Y M,TANG X,et al. Entropy function evaluation of geological structure complexity of southwest section in Tangshan mine[J]. Coal Geology&Exploration,2015,43(3):6-10.
[6]何松霖,刘勇,康向涛,等.盘江矿区煤系地质构造复杂程度评价研究[J].煤炭科学技术,2017(6):196-200.HE S L,LIU Y,KANG X T,et al. Research on evaluation of complexity of geological structure of coal measures in Panjiang mining area[J]. Coal Science and Technology,2017(6):196-200.
[7]苏贵芬,许模.灰色模糊理论在地质构造复杂程度评价中的应用[J].煤炭科学技术,2009,37(10):96-100.SU G F,XU M. Application of gray fuzzy theory to evaluation of complicated degree for geological structure[J]. Coal Science and Technology,2009,37(10):96-100.
[8]曹代勇,穆宣社.河北蔚县崔家寨井田构造复杂程度定量评价[J].地质力学学报,2000,6(4):88-94.CAO D Y,MU X S. Quantitative evaluation on geological structure complexity of Cuijiazhai mine,Hebei province[J]. Journal of Geomechanics,2000,6(4):88-94.
[9]柯春培,严家平,徐胜平,等.祁南煤矿小型断裂构造复杂程度与褶皱变形研究[J].煤炭科学技术,2013(5):113-116.KE C P,YAN J P,XU S P,et al. Study on complexity of minor crock structure and folding deformation in Qinan mine[J]. Coal Science and Technology,2013(5):113-116.
[10]施龙青,滕超,韩进,等.基于层次分析法-系统聚类分析的井田构造复杂程度评价[J].中国科技论文,2015(21):2550-2554.SHI L Q,TENG C,HAN J,et al. Evaluation of mine field structure complexity based on analytical hierarchy process and hierarchical cluster analysis[J]. China Sciencepaper,2015(21):2550-2554.
[11]徐彬彬.贵州煤田地质[M].徐州:中国矿业大学出版社,2003.XU B B. Geology of Guizhou coal field[M]. Xuzhou:China University of Mining and Technology Press,2003.
[12]杨兆彪,秦勇,高弟.黔西比德-三塘盆地煤层群发育特征及其控气特殊性[J].煤炭学报,2011,36(4):593-597.YANG Z B,QIN Y,GAO D. Development character and particulartiy of controlling coalbed methane under coal seam groups from Bide-Santang basin,western Guizhou[J]. Journal of China coal society,2011,36(4):593-597.
[13]杨兆彪,秦勇,高弟.黔西比德-三塘盆地煤层群含气系统类型及其形成机理[J].中国矿业大学学报,2011(2):215-220.YANG Z B,QIN Y,GAO D. Type and geological controls of coalbed methane-bearing system under coal seam groups from Bide-Santang basin,western Guizhou[J]. Journal of China University of Mining&Technology,2011(2):215-220.
[14]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.GUO C,XIA Y C,LU L L,et al. Development features and mechanism of multilayer superimposed independent CBM system in bide-santang basin,western Guizhou,south China[J]. Natural Gas Geoscience,2017,28(4):622-632.
[15]梁冲冲,吴财芳,李腾.多煤层叠置独立含气系统中煤储层孔隙特征研究[J].煤炭科学技术,2013(6):104-107.LIANG C C,WU C F,LI T. Study on pore features of coal reservoir in multi superimposed independent gasbearing system[J]. Coal Science and Technology,2013(6):104-107.
[16]孙昌花,唐书恒,闫凯.比德-三塘盆地比德区块煤储层特征及有利勘探区评价[J].中国煤炭地质,2015(11):14-17.SUN C H,TANG S H,YAN K. Coal reservoir features and favorable exploration area evaluation in Bide block,Bide-Santang basin[J]. Coal Geology of China,2015(11):14-17.
[17]陈善成,姚多喜,田强国,等.祁东煤矿6_1煤地质构造复杂程度定量评价[J].煤炭科学技术,2010(3):101-103.CHEN S C,YAO D X,TIAN Q G,et al. Quantitative assessment of geological structure complicated degree of No. 61 seam in Qidong mine[J]. Coal Science and Technology,2010(3):101-103.
[18]王肖.滇东老厂矿区煤层气地质特征及甜点区段优选[D].徐州:中国矿业大学,2017.WANG X. Geological characteristic of coalbed methane and optimization of sweet spots in laochang mining wrea of eastern Yunnan province[D]. Xuzhou:China University of Mining and Technology,2017.
[19]黄丹,廖太平,邓吉州,等.分形理论在断裂构造研究中的应用前景[J].重庆科技学院学报(自然科学版),2010(6):83-85.HUANG D,LIAO T P,DENG J Z,et al. Application prospect of fractal theory in fault structure study[J].Journal of Chongqing University of Science and Technology(Natural Science Edition),2010(6):83-85.
[20]冯士安,肖建辉,葛英豪.基于分形理论的许疃矿煤层顶板结构类型划分[J].煤炭科学技术,2009(9):107-109.FENG S A,XIAO J H,GE Y H. Classification of seam roof structure type in Xutuan mine based on fractal theory[J]. Coal Science and Technology,2009(9):107-109.
[21]肖建辉.许疃煤矿8_2煤层顶板工程地质特性及其稳定性评价[D].淮南:安徽理工大学,2009.XIAO J H. Research on engineering geological properties and stability of the 82 coal seam’s roof of Xutuan coal mine[D]. Huainan:Anhui University of Science and Technology,2009.
[22]邓雪,李家铭,曾浩健,等.层次分析法权重计算方法分析及其应用研究[J].数学的实践与认识,2012(7):93-100.DENG X,LI J M,ZENG H J,et al. Research on computation methods of AHP weight vector and its applications[J]. Mathematics in Practice and Theory,2012(7):93-100.
[23]张小东,张硕,孙庆宇,等.基于AHP和模糊数学评价地质构造对煤层气产能的影响[J].煤炭学报,2017,42(9):385-2392.ZHANG X D,ZHANG S,SUN Q Y,et al. Evaluating the influence of geological structure to CBM productivity based on AHP and fuzzy mathematics[J]. Journal of China Coal Society,2017,42(9):2385-2392.