渤海海域火山热流体及其对碳酸盐岩优质储层的控制作用

金小燕; 杜晓峰; 王清斌; 代黎明; 刘晓健; 郝轶伟

doi:10.11781/sysydz201806800

渤海海域火山热流体及其对碳酸盐岩优质储层的控制作用

doi: 10.11781/sysydz201806800

中海石油(中国)有限公司天津分公司, 天津 300459

基金项目:

“十三五”国家科技重大专项“渤海海域勘探新领域及关键技术研究”（2016ZX05024-003）资助。

详细信息

作者简介:
金小燕(1984-),女,硕士,工程师,从事石油地质与勘探综合研究。E-mail:jinxy2@cnooc.com.cn。

中图分类号: TE122.2
计量
- 文章访问数: 829
- HTML全文浏览量: 98
- PDF下载量: 194
- 被引次数: 0
出版历程
- 收稿日期: 2018-05-25
- 修回日期: 2018-09-19
- 刊出日期: 2018-11-28

Volcanic hydrothermal fluid activity and its influence on carbonate reservoirs in Bohai Sea area

CNOOC Tianjin Company, Tianjin, 300459 China

摘要

摘要: 渤海海域火山活动频繁，为了落实火山热液活动对碳酸盐岩储层的影响，利用岩心、铸体薄片、扫描电镜、碳氧同位素、锶同位素、稀土元素和流体包裹体等分析手段，对渤海海域火山热流体活动特征及其对古生界碳酸盐岩储层的改造作用进行了研究。渤海海域火山热液流体主要受断裂控制，主要成分包括幔源成因的岩浆并携带大量的CO₂、H₂S等气体；建立了碳酸盐岩储层中火山热液活动的标志，包括热液诱导缝、热褪色，鞍形白云石（渤海海域首次发现）、硅质结核、柱状自生石英和脉状黄铁矿等典型热液矿物。受热液作用影响的方解石具有δ¹⁸O值异常低、⁸⁷Sr/⁸⁶Sr值异常高、轻稀土元素富集及Eu正异常等特征，盐水包裹体均一温度远高于地层温度。火山成因热液流体在沿断裂进入碳酸盐岩围岩过程中，促使围岩产生了大量诱导缝，发生热液白云岩化作用，产生大量的晶间孔，磷灰石包壳、硅质结核等热液矿物对先存的孔缝具有一定的支撑和保护作用，火山热液流体沿孔缝进入，进一步对碳酸盐岩进行溶蚀改造，形成大量的溶蚀孔隙，储层物性大大改善，提升了碳酸盐岩储层的储集性能。
- 火山热流体 /
- 储层改造 /
- 碳酸盐岩储层 /
- 渤海海域
Abstract: Volcanic activity is frequent in the Bohai Sea. Hydrothermal fluid activity and its reformation effect on Paleozoic carbonate reservoirs were studied based on core, cast thin section, scanning electron microscopy, carbon and oxygen isotopes, strontium isotope and rare earth elements in combination with fluid inclusion analysis to study the influence of volcanic hydrothermal activity on carbonate reservoirs. The hydrothermal fluid in the Bohai Sea was controlled by fractures. The main ingredients of hydrothermal fluid include a large amount of CO₂ and H₂S gas from the earth mantle. Properties indicating hydrothermal fluid activity included induced joints by hydrothermal fluid, typical rock heat bleaching and typical hydrothermal minerals such as saddle dolomite (first discovered in the Bohai sea area), siliceous nodules, columnar authigenic quartz and veined pyrite. The calcites growing under the influence of hydrothermal fluid are featured by low δ¹⁸O value, high ⁸⁷Sr/⁸⁶Sr, light rare earth enrichment and Eu positive exception, and the homogenization temperatures of salt water inclusions are obviously higher than the formation temperature. When volcanic hydrothermal fluids flowed along faults, a large number of hydrothermally induced fractures were formed in carbonate reservoirs, and hydrothermal dolomitization took place in large intergranular pores. Hydrothermal minerals such as cladding of apatite and siliceous nodules supported and protected the previous apertures. Volcanic hydrothermal fluids flowed along the apertures, forming a large number of dissolution pores in carbonate rocks, which improved carbonate reservoir porosity.
- volcanic hydrothermal fluid /
- reservoir reformation /
- carbonate reservoir /
- Bohai Sea area

HTML全文

参考文献(24)

[1]	金之钧,朱东亚,胡文瑄,等.塔里木盆地热液活动地质地球化学特征及其对储层影响[J].地质学报,2006,80(2):245-253. JIN Zhijun,ZHU Dongya,HU Wenxuan,et al.Geological and geochemical signatures of hydrothermal activity and their influence on carbonate reservoir beds in the Tarim Basin[J].Acta Geologica Sinica,2006,80(2):245-253.
[2]	田雷,崔海峰,冯晓军,等.麦盖提斜坡奥陶系热液溶蚀流体对内幕白云岩储层的改造作用[J].石油与天然气地质,2015,36(3):402-408. TIAN Lei,CUI Haifeng,FENG Xiaojun,et al.Reconstruction effect of the Ordovician hydrothermal dissolution fluid on interior dolomite reservoirs in Maigaiti slope,Tarim Basin[J].Oil & Gas Geology,2015,36(3):402-408.
[3]	朱松柏,王洪峰,王胜军,等.玉北地区深部热液活动的发现及其储层改造意义[J].岩性油气藏,2016,28(3):42-47. ZHU Songbai,WANG Hongfeng,WANG Shengjun,et al.Hydrothermal activities of Ordovician and its significance for alteration to carbonate reservoirs in Yubei area[J].Lithologic Reservoirs,2016,28(3):42-47.
[4]	李忠,黄思静,刘嘉庆,等.塔里木盆地塔河奥陶系碳酸盐岩储层埋藏成岩和构造-热流体作用及其有效性[J].沉积学报,2010,28(5):969-979. LI Zhong,HUANG Sijing,LIU Jiaqing,et al.Buried diagenesis,structurally controlled thermal-fluid process and their effect on Ordovician carbonate reservoirs in Tahe,Tarim Basin[J].Acta Sedimentologica Sinica,2010,28(5):969-979.
[5]	李辉,李国蓉,罗韵,等.塔河地区奥陶系碳酸盐岩储层深部热液特征分析[J].东北石油大学学报,2014,38(6):12-21. LI Hui,LI Guorong,LUO Yun,et al.Analysis of characteristics of deep hydrothermal fluids in Ordovician carbonate reservoir in Tahe area[J].Journal of Northeast Petroleum University,2014,38(6):12-21.
[6]	杨海军,李开开,潘文庆,等.塔中地区奥陶系埋藏热液溶蚀流体活动及其对深部储层的改造作用[J].岩石学报,2012,28(3):783-792. YANG Haijun,LI Kaikai,PAN Wenqing,et al.Burial hydrothermal dissolution fluid activity and its transforming effect on the reservoirs in Ordovician in Central Tarim[J].Acta Petrologica Sinica,2012,28(3):783-792.
[7]	于海波,王德英,牛成民,等.渤海海域渤南低凸起碳酸盐岩潜山储层特征及形成机制[J].石油实验地质,2015,37(2):150-156. YU Haibo,WANG Deying,NIU Chengmin,et al.Characteristics and formation mechanisms of buried hill carbonate reservoirs in Bonan Low Uplift,Bohai Bay[J].Petroleum Geology & Experiment,2015,37(2):150-156.
[8]	王少鹏,杨庆红,郭铁恩,等.渤海海域CF油田古生界碳酸盐岩潜山储层特征[J].大庆石油地质与开发,2014,33(2):16-21. WANG Shaopeng,YANG Qinghong,GUO Tieen,et al.Characteristics of the Paleozoic carbonate buried-hill reservoirs in CF Oilfield of Bohai Sea[J].Petroleum Geology and Oilfield Deve-lopment in Daqing,2014,33(2):16-21.
[9]	赵国祥,王清斌,杨波,等.渤中凹陷奥陶系深埋环境下碳酸盐岩溶蚀成因分析[J].天然气地球科学,2016,27(1):111-120. ZHAO Guoxiang,WANG Qingbin,YANG Bo,et al.Dissolution mechanism analysis of Ordovician carbonates under burial environment of Bozhong Sag,Bohai Sea area[J].Natural Gas Geoscience,2016,27(1):111-120.
[10]	陈丽祥,牛成民,李慧勇,等.渤海湾盆地渤中21-2构造碳酸盐岩储层发育特征及其控制因素[J].油气地质与采收率,2016,23(2):16-21. CHEN Lixiang,NIU Chengmin,LI Huiyong,et al.Carbonate reservoir characteristics and its controlling factors in Bozhong21-2 structure,Bohai Bay Basin[J].Petroleum Geology and Recovery Efficiency,2016,23(2):16-21.
[11]	金春爽,乔德武,淡伟宁.渤海湾盆地中、新生代火山岩分布及油气藏特征[J].石油与天然气地质,2012,33(1):19-29. JIN Chunshuang,QIAO Dewu,DAN Weining.Meso-Cenozoic volcanic rock distribution and reservoir characteristics in the Bohai Bay Basin[J].Oil & Gas Geology,2012,33(1):19-29.
[12]	漆家福,于福生,陆克政,等.渤海湾地区的中生代盆地构造概论[J].地学前缘,2003,10(S1):199-206. QI Jiafu,YU Fusheng,LU Kezheng,et al.Conspectus on Mesozoic basins in Bohai Bay province[J].Earth Science Frontiers,2003,10(S1):199-206.
[13]	董月霞,周海民,夏文臣.南堡凹陷火山活动与裂陷旋回[J].石油与天然气地质,2000,21(4):304-307. DONG Yuexia,ZHOU Haimin,XIA Wenchen.Volcanic activities and rift-subsidence cycles in Nanpu Sag[J].Oil & Gas Geology,2000,21(4):304-307.
[14]	田立新,杨海风,王德英,等.渤海海域古近系油气藏高含量CO₂的成因及成藏期研究:以秦南凹陷Q油气田为例[J].中南大学学报(自然科学版),2013,44(2):673-578. TIAN Lixin,YANG Haifeng,WANG Deying,et al.Study on genesis of high contents of CO₂and hydrocarbon accumulation period in Paleogene,Bohai Sea:an example in Q oil-gas field of Qinnan Sag[J].Journal of Central South University (Science and Technology),2013,44(2):673-578.
[15]	初凤友,陈丽蓉,申顺喜,等.南黄海自生黄铁矿成因及其环境指示意义[J].海洋与湖沼,1995,26(3):227-233. CHU Fengyou,CHEN Lirong,SHEN Shunxi,et al.Origin and environmental significance of authigenic pyrite from the South Yellow (Huanghai) Sea sediments[J].Oceanologia et Limnologia Sinica,1995,26(3):227-233.
[16]	王玉萍,董春梅,陈洪德,等.鄂尔多斯盆地中西部奥陶纪热液活动的证据及其对储层发育的影响[J].海相油气地质,2014,19(2):23-31. WANG Yuping,DONG Chunmei,CHEN Hongde,et al.Petrolo-gical evidence of Ordovician hydrothermal activities and its geological significance to reservoir development in central and western parts of Ordos Basin[J].Marine Origin Petroleum Geology,2014,19(2):23-31.
[17]	黄思静.碳酸盐岩的成岩作用[M].北京:地质出版社,2010. HUANG Sijing.Carbonate diagenesis[M].Beijing:Geological Press,2010.
[18]	QING Hairuo,MOUNTJOY E W.Formation of coarsely crystalline,hydrothermal dolomite reservoirs in the Presqu'ile barrier,Western Canada Sedimentary Basin[J].AAPG Bulletin,1994,78(1):55-77.
[19]	AZMY K,BRAND U,SYLVESTER P,et al.Biogenic and abiogenic low-Mg calcite(bLMC and aLMC):evaluation of seawater-REE composition,water masses and carbonate diagenesis[J].Chemical Geology,2011,280(1/2):180-190.
[20]	王小林,金之钧,胡文瑄,等.塔里木盆地下古生界白云石微区REE配分特征及其成因研究[J].中国科学(D辑地地球科学),2009,39(6):721-733. WANG Xiaolin,JIN Zhijun,HU Wenxuan,et al.Using in situ REE analysis to study the origin and diagenesis of dolomite of Lower Paleozoic,Tarim Basin[J].Science in China(Series D Earth Sciences),2009,39(6):721-733.
[21]	OLIVAREZ A M,OWEN R M.The europium anomaly of seawater:implications for fluvial versus hydrothermal REE inputs to the oceans[J].Chemical Geology,1991,92(4):317-328.
[22]	胡作维,李云,韩信,等.碳酸盐岩储层中热液流体改造作用研究进展[J].地质科技情报,2015,34(5):58-65. HU Zuowei,LI Yun,HAN Xin,et al.Reviews on the hydrothermal alteration of carbonate reservoirs[J].Geological Science and Technology Information,2015,34(5):58-65.
[23]	DAVIES G R,SMITH JR L B.Structurally controlled hydrothermal dolomite reservoir facies:an overview[J].AAPG Bulletin,2006,90(11):1641-1690.
[24]	杨宁,吕修祥,郑多明.塔里木盆地火成岩对碳酸盐岩储层的改造作用[J].西安石油大学学报(自然科学版),2005,20(4):1-4. YANG Ning,LV Xiuxiang,ZHENG Duoming.Alteration of the igneous rock on the carbonate reservoirs in Talimu Basin[J].Journal of Xi'an Shiyou University (Natural Science Edition),2005,20(4):1-4.