四川盆地南部页岩气地震勘探新进展
|
摘要
我国目前对于页岩气的研究多集中在基础理论上,利用地球物理资料对页岩气进行研究尚处于探索阶段。为此,在对四川盆地南部页岩层段地质、地球物理响应特征分析的基础上,通过地震资料采集、处理及解释技术攻关,形成了一套较为完整的页岩气地球物理勘探思路及技术流程,取得了页岩气地震勘探的新进展。采集方面,通过对激发接收参数的试验攻关,优选了技术性与经济性兼备的、合理的采集参数;处理方面,特别注重静校正、保真保幅及浅层信息保护等处理环节;解释方面,在分析页岩气主控因素的基础上,通过断层精细解释+埋深编制+优质页岩厚度预测等环节的工作,为该地区页岩气资源评价和开发目标区的选择提供了坚实的基础资料。
The present research of shale gas primarily focuses on basic theories in China,while such research by use of geophysical data is still in its exploratory stage.Based on an analysis of geological features and geophysical response characteristics of the shale beds in the southern Sichuan Basin,a relatively complete set of ideas and work flow is established for geophysical exploration of shale gas through seismic data acquisition,processing and interpretation techniques.In terms of seismic acquisition,acquisition data are optimized through successful experiments of shooting and receiving parameters.In respect of seismic data processing,special attentions are paid to static correction,fidelity-keeping,amplitude preservation,and the protection of shallow signals.As to seismic data interpretation,based on an analysis of the major controlling factors of shale gas reservoirs,detailed basic data are provided for shale gas resources assessment and development target selection through detailed fault interpretation,burial depth mapping,and thickness prediction of quality shale beds.
The present research of shale gas primarily focuses on basic theories in China,while such research by use of geophysical data is still in its exploratory stage.Based on an analysis of geological features and geophysical response characteristics of the shale beds in the southern Sichuan Basin,a relatively complete set of ideas and work flow is established for geophysical exploration of shale gas through seismic data acquisition,processing and interpretation techniques.In terms of seismic acquisition,acquisition data are optimized through successful experiments of shooting and receiving parameters.In respect of seismic data processing,special attentions are paid to static correction,fidelity-keeping,amplitude preservation,and the protection of shallow signals.As to seismic data interpretation,based on an analysis of the major controlling factors of shale gas reservoirs,detailed basic data are provided for shale gas resources assessment and development target selection through detailed fault interpretation,burial depth mapping,and thickness prediction of quality shale beds.
引文
[1]《页岩气地质与勘探开发实践丛书》编委会.中国页岩气藏地质理论研究新进展[M].北京:石油工业出版社,2009.
[2]《页岩气地质与勘探开发实践丛书》编委会.北美地区页岩气勘探开发新进展[M].北京:石油工业出版社,2009.
[3]HARTMAN R C,LASSWELL P,BHATTA N.Recent ad-vances inthe analytical methods usedfor shale gas reservoirgas-in-place assessment[C]∥AAPG Annual Convention,20-23 April 2008,San Antonio,Texas,USA.Houston:AAPG,2008.
[4]JARVIE D M,HILL R J,RULE T,et al.Unconventionalshale-gas systems:the Mississippian Barnett Shale of north-central Texas as one model for thermogenic shale-gas as-sessment[J].AAPG,2007,91(4):475-499.
[5]王兰生,邹春艳,郑平,等.四川盆地下古生界存在页岩气的地球化学依据[J].天然气工业,2009,29(5):59-62.
[6]王世谦,陈更生,董大忠,等.四川盆地下古生界页岩气藏形成条件与勘探前景[J].天然气工业,2009,29(5):51-58.
[7]王社教,王兰生,黄金亮,等.上扬子区志留系页岩气成藏条件[J].天然气工业,2009,29(5):45-50.
[8]程克明,王世谦,董大忠,等.上扬子区下寒武统筇竹寺组页岩气成藏条件[J].天然气工业,2009,29(5):40-44.
[9]聂海宽,唐玄,边瑞康.页岩气成藏控制因素及中国南方页岩气发育有利区预测[J].石油学报,2009,30(4):484-491.
[10]张金川,聂海宽,徐波,等.四川盆地页岩气成藏地质条件[J].天然气工业,2008,28(2):151-156.
[2]《页岩气地质与勘探开发实践丛书》编委会.北美地区页岩气勘探开发新进展[M].北京:石油工业出版社,2009.
[3]HARTMAN R C,LASSWELL P,BHATTA N.Recent ad-vances inthe analytical methods usedfor shale gas reservoirgas-in-place assessment[C]∥AAPG Annual Convention,20-23 April 2008,San Antonio,Texas,USA.Houston:AAPG,2008.
[4]JARVIE D M,HILL R J,RULE T,et al.Unconventionalshale-gas systems:the Mississippian Barnett Shale of north-central Texas as one model for thermogenic shale-gas as-sessment[J].AAPG,2007,91(4):475-499.
[5]王兰生,邹春艳,郑平,等.四川盆地下古生界存在页岩气的地球化学依据[J].天然气工业,2009,29(5):59-62.
[6]王世谦,陈更生,董大忠,等.四川盆地下古生界页岩气藏形成条件与勘探前景[J].天然气工业,2009,29(5):51-58.
[7]王社教,王兰生,黄金亮,等.上扬子区志留系页岩气成藏条件[J].天然气工业,2009,29(5):45-50.
[8]程克明,王世谦,董大忠,等.上扬子区下寒武统筇竹寺组页岩气成藏条件[J].天然气工业,2009,29(5):40-44.
[9]聂海宽,唐玄,边瑞康.页岩气成藏控制因素及中国南方页岩气发育有利区预测[J].石油学报,2009,30(4):484-491.
[10]张金川,聂海宽,徐波,等.四川盆地页岩气成藏地质条件[J].天然气工业,2008,28(2):151-156.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心