莺歌海盆地DF13区储层应力敏特征及主控因素
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摘要
为了准确地评价莺歌海盆地DF13区黄流组气田群的应力敏特征,设计了模拟气藏开发过程的定围压变内压的应力敏评价实验。结果表明:样品的渗透率随承受净应力的增加而减小,二者呈指数规律变化,应力敏对储层渗透率的伤害率为7.58%~46.1%,伤害程度弱~中等偏弱;且不同样品之间应力敏伤害程度存在一定的差异。通过对储层的岩石矿物组成及溶蚀与胶结作用的分析发现:1储层应力敏对渗透率的伤害率与碎屑砂岩中的刚性矿物石英的含量呈负相关关系;石英含量越高,占总碎屑量的比重越大,应力敏伤害程度越弱;2粒内溶孔发育的骨架颗粒更易发生结构坍塌或形变,损害储层的渗透率;胶结作用强的储层,骨架颗粒发生位移或变形的可能性较小,储层的应力敏伤害程度较弱。
In order to accurately evaluate reservoir stress sensitivity of gas fields in Huangliu Formation of the Dongfang 13 area in Yinggehai basin,stress sensitivity evaluation experiment,which was simulated with constant confining pressure and variable internal pressure during the development of gas reservoir,is elaborately designed.The experimental results show that permeability of samples decreases with the increase of net stress by the exponential law.Impairment rate stress sensitivity makes on reservoir permeability is between 7.58% ~ 46.1% and the damage degree is generally weak-mid weak,which has some distinction between different samples.Analysis of petrologic mineral compositions,corrosion and cementation illustrates that:1Impairment rate reservoir stress sensitivity makes on reservoir permeability has a negative correlation with the content of rigid mineral quartz in clastic sandstone,if the quartz has a higher content and takes a larger proportion of total amount of debris,the impairment rate will be weaker.2Framework grains developed in dissolved intra-grain pores is easier to have structural collapse or deformation,which can damage reservoir permeability;however,reservoir with strong cementation has a less possibility to produce displacement or deformation for framework grains,therefore the reservoir stress sensitivity damage can be weaker.
In order to accurately evaluate reservoir stress sensitivity of gas fields in Huangliu Formation of the Dongfang 13 area in Yinggehai basin,stress sensitivity evaluation experiment,which was simulated with constant confining pressure and variable internal pressure during the development of gas reservoir,is elaborately designed.The experimental results show that permeability of samples decreases with the increase of net stress by the exponential law.Impairment rate stress sensitivity makes on reservoir permeability is between 7.58% ~ 46.1% and the damage degree is generally weak-mid weak,which has some distinction between different samples.Analysis of petrologic mineral compositions,corrosion and cementation illustrates that:1Impairment rate reservoir stress sensitivity makes on reservoir permeability has a negative correlation with the content of rigid mineral quartz in clastic sandstone,if the quartz has a higher content and takes a larger proportion of total amount of debris,the impairment rate will be weaker.2Framework grains developed in dissolved intra-grain pores is easier to have structural collapse or deformation,which can damage reservoir permeability;however,reservoir with strong cementation has a less possibility to produce displacement or deformation for framework grains,therefore the reservoir stress sensitivity damage can be weaker.
引文
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9 谢玉洪,张迎朝,李绪深,等.莺歌海盆地高温超压气藏控藏要素与成藏模式.石油学报,2012;33(4):601—609Xie Yuhong,Zhang Yingzhao,Li Xushen,et al.Main controlling factors and formation models of natural gas reservoirs with high-temperature and overpressure in Yinggehai basin.Acta Petrolei Sinica,2012;33(4):601—609
10 郝芳,董伟良,邹华耀,等.莺歌海盆地汇聚型超压流体流动及天然气晚期快速成藏.石油学报,2003;24(6):7—12Hao Fang,Dong Wei Liang,Zou Huayao,et al.Overpressure fluid flow and rapid accumulation of natural gas in Yinggehai basin.Acta Petrolei Sinica,2003;24(6):7—12
11 裴健翔,于俊峰,王立锋,等.莺歌海盆地中深层天然气勘探的关键问题及对策.石油学报,2011;32(4):573—579Pei Jianxiang,Yu Junfeng,Wang Lifeng,et al.Key challenges and strategies for the success of natural gas exploration in mid-deep strata of the Yinggehai basin.Acta Petrolei Sinica,2011;32(4):573—579
12谢玉洪,刘平,黄志龙.莺歌海盆地高温超压天然气成藏地质条件及成藏过程.天然气工业,2012;32(4):19—23Xie Yuhong,Liu Ping,Huang Zhilong.Geological conditions and pooling process of high-temperature and overpressure natural gas reservoirs in the Yinggehai basin.Natural Gas Industry,2012;32(4):19—23
13 张伙兰,裴健翔,张迎朝,等.莺歌海盆地东方区中深层黄流组超压储集层特征.石油勘探与开发,2013;40(3):284—293Zhang Huolan,Pei Jianxiang,Zhang Yingzhao,et al.Overpressure reservoirs in the mid-deep Huangliu formation of the Dongfang area,Yinggehai basin,South China Sea.Petroleum Exploration and Development,2013;40(3):284—293
14 童传新,王振峰,李绪深.莺歌海盆地东方1-1气田成藏条件及其启示.天然气工业,2012;32(8):11—15Tong Chuanxin,Wang Zhenfeng,Li Xushen.Pooling conditions of gas reservoirs in the Dongfang 1-1 gas field,Yinggehai Basin.Natural Gas Industry,2012;32(8):11—15
15 张浩,康毅力,陈一健,等.岩石组分和裂缝对致密砂岩应力敏感性影响.天然气工业,2004;24(7):55—57Zhang Hao,Kang Yili,Chen Yijian,et al.Influence of the rock components and fractures on tight sandstone stress sensitivity.Natural Gas Industry,2004;24(7):55—57
16 李传亮.岩石应力敏感指数与压缩系数之间的关系式.岩性油气藏,2007;19(4):95—98Li Chuanliang.A theoretical formula of stress sensitivity index with compressibility of rock.Lithologic Reservoirs,2007;19(4):95 —98
17 王清斌,臧春艳,朱文森,等.渤中坳陷石臼陀凸起东段幔源CO2充注对储集层黏土矿物的影响.岩石矿物学杂志,2012;31 (5):674—680Wang Qingbin,Zang Chunyan,Zhu Wensen,et al.The impact of mantle source CO2on clay minerals of clastic reservoirs in the east part of Shijiutuo symon fault,Bozhong depression.Acta Petrologica Et Mineralogica,2012;31(5):674—680
18 王力娟,刘立,杨会东,等.松辽盆地南部红岗阶地和华字井阶地含片钠铝石砂岩中的黏土矿物特征.中南大学学报(自然科学版),2013;44(6):2392—2401Wang Lijuan,Liu Li,Yang Huidong,et al.Characteristic of clay in dawsonite-bearing sandstones in Honggang terraces and Huazijing terraces of Songliao basin.Journal of Central South University(Science and Technology),2013;44(6):2392—2401
19 孟凡晋,肖丽华,谢玉洪,等.莺歌海盆地黏土矿物异常转化及其地质意义.沉积学报,2012;30(3):469—476Meng Fanjin,Xiao Lihua,Xie Yuhong,et al.Abnormal transformation of the clay minerals in Yinggehai basin and its significances.Acta Sedimentologica Sinica,2012;30(3):469—476
20 张善文,袁静,隋风贵,等.东营凹陷北部沙河街组四段深部储层多重成岩环境及演化模式.地质科学,2008;43(3):576 —587Zhang Shanwen,Yuan Jing,Sui Fenggui,et al.Multiple diagenetic environments and evolvement model in deep formation of the 4th Member,Shahejie formation in the northern Dongying sag.Chinese Journal of Geology(Scientia Geologica Sinica),2008;43(3):576 —587
2 李闽,乔国安,陈昊.低渗砂岩储层岩石应力敏感实验与理论研究.钻采工艺,2006;29(4):91—93Li Min,Qiao Guoan,Chen Hao.Experimental and theoretical study on rock stress-sensitivities in low permeability sandstone.Drilling&Production Technology,2006;29(4):91—93
3 阮敏,王连刚.低渗透油田开发与压敏效应.石油学报,2002;23(3):73—76Ruan Min,Wang Lian gang.Low permeability oilfield development and pressure-sensitive effect.Acta Petrolei Sinica,2002;23(3):73 —76
4 董平川,江同文,唐明龙.异常高压气藏应力敏感性研究.岩石力学与工程学报,2008;27(10):2087—2093Dong Pingchuan,Jiang Tongwen,Tang Minglong.Research on stress-sensitivity in abnormal high pressure gas reservoir.Chinese Journal of Rock Mechanics and Engineering,2008;27(10):2087—2093
5 潘伟义,伦增珉,王卫红,等.异常高压气藏应力敏感性实验研究.石油实验地质,2011;33(2):212—214Pan Weiyi,Lun Zengmin,Wang Weihong,et al.Experimental study of stress sensitivity in abnormal overpressure gas reservoir.Petroleum Geology&Experiment,2011;33(2):212—214
6 冯红霞,黄新文,陈军斌,等.文留油田低渗透砂岩裂缝储层压力敏感性研究.断块油气田,2010;17(5):599—601Feng Hongxia,Huang Xinwen,Chen Junbin,et al.Research on pressure sensitivity of fractured sandstone reservoir with low permeability in Wenliu oilfield.Fault-Block Oil&Gas Field,2010;17(5):599—601
7 于忠良,熊伟,高树生,等.致密储层应力敏感性及其对油田开发的影响.石油学报,2007;28(4):95—98Yu Zhongliang,Xiong Wei,Gao Shusheng,et al.Stress sensitivity of tight reservoir and its influence on oilfield development.Acta Petrolei Sinica,2007;28(4):95—98
8 王振峰,何家雄,解习农.莺歌海盆地泥-流体底辟带热流体活动对天然气运聚成藏的控制作用.地球科学——中国地质大学学报,2004;29(2):203—210Wang Zhenfeng,He Jiaxiong,Xie Xinong.Heat flow action and its control on natural gas migration and accumulation in mud fluid diapir areas in Yinggehai basin.Earth Science-Journal of China University of Geosciences,2004;29(2):203—210
9 谢玉洪,张迎朝,李绪深,等.莺歌海盆地高温超压气藏控藏要素与成藏模式.石油学报,2012;33(4):601—609Xie Yuhong,Zhang Yingzhao,Li Xushen,et al.Main controlling factors and formation models of natural gas reservoirs with high-temperature and overpressure in Yinggehai basin.Acta Petrolei Sinica,2012;33(4):601—609
10 郝芳,董伟良,邹华耀,等.莺歌海盆地汇聚型超压流体流动及天然气晚期快速成藏.石油学报,2003;24(6):7—12Hao Fang,Dong Wei Liang,Zou Huayao,et al.Overpressure fluid flow and rapid accumulation of natural gas in Yinggehai basin.Acta Petrolei Sinica,2003;24(6):7—12
11 裴健翔,于俊峰,王立锋,等.莺歌海盆地中深层天然气勘探的关键问题及对策.石油学报,2011;32(4):573—579Pei Jianxiang,Yu Junfeng,Wang Lifeng,et al.Key challenges and strategies for the success of natural gas exploration in mid-deep strata of the Yinggehai basin.Acta Petrolei Sinica,2011;32(4):573—579
12谢玉洪,刘平,黄志龙.莺歌海盆地高温超压天然气成藏地质条件及成藏过程.天然气工业,2012;32(4):19—23Xie Yuhong,Liu Ping,Huang Zhilong.Geological conditions and pooling process of high-temperature and overpressure natural gas reservoirs in the Yinggehai basin.Natural Gas Industry,2012;32(4):19—23
13 张伙兰,裴健翔,张迎朝,等.莺歌海盆地东方区中深层黄流组超压储集层特征.石油勘探与开发,2013;40(3):284—293Zhang Huolan,Pei Jianxiang,Zhang Yingzhao,et al.Overpressure reservoirs in the mid-deep Huangliu formation of the Dongfang area,Yinggehai basin,South China Sea.Petroleum Exploration and Development,2013;40(3):284—293
14 童传新,王振峰,李绪深.莺歌海盆地东方1-1气田成藏条件及其启示.天然气工业,2012;32(8):11—15Tong Chuanxin,Wang Zhenfeng,Li Xushen.Pooling conditions of gas reservoirs in the Dongfang 1-1 gas field,Yinggehai Basin.Natural Gas Industry,2012;32(8):11—15
15 张浩,康毅力,陈一健,等.岩石组分和裂缝对致密砂岩应力敏感性影响.天然气工业,2004;24(7):55—57Zhang Hao,Kang Yili,Chen Yijian,et al.Influence of the rock components and fractures on tight sandstone stress sensitivity.Natural Gas Industry,2004;24(7):55—57
16 李传亮.岩石应力敏感指数与压缩系数之间的关系式.岩性油气藏,2007;19(4):95—98Li Chuanliang.A theoretical formula of stress sensitivity index with compressibility of rock.Lithologic Reservoirs,2007;19(4):95 —98
17 王清斌,臧春艳,朱文森,等.渤中坳陷石臼陀凸起东段幔源CO2充注对储集层黏土矿物的影响.岩石矿物学杂志,2012;31 (5):674—680Wang Qingbin,Zang Chunyan,Zhu Wensen,et al.The impact of mantle source CO2on clay minerals of clastic reservoirs in the east part of Shijiutuo symon fault,Bozhong depression.Acta Petrologica Et Mineralogica,2012;31(5):674—680
18 王力娟,刘立,杨会东,等.松辽盆地南部红岗阶地和华字井阶地含片钠铝石砂岩中的黏土矿物特征.中南大学学报(自然科学版),2013;44(6):2392—2401Wang Lijuan,Liu Li,Yang Huidong,et al.Characteristic of clay in dawsonite-bearing sandstones in Honggang terraces and Huazijing terraces of Songliao basin.Journal of Central South University(Science and Technology),2013;44(6):2392—2401
19 孟凡晋,肖丽华,谢玉洪,等.莺歌海盆地黏土矿物异常转化及其地质意义.沉积学报,2012;30(3):469—476Meng Fanjin,Xiao Lihua,Xie Yuhong,et al.Abnormal transformation of the clay minerals in Yinggehai basin and its significances.Acta Sedimentologica Sinica,2012;30(3):469—476
20 张善文,袁静,隋风贵,等.东营凹陷北部沙河街组四段深部储层多重成岩环境及演化模式.地质科学,2008;43(3):576 —587Zhang Shanwen,Yuan Jing,Sui Fenggui,et al.Multiple diagenetic environments and evolvement model in deep formation of the 4th Member,Shahejie formation in the northern Dongying sag.Chinese Journal of Geology(Scientia Geologica Sinica),2008;43(3):576 —587