井震结合识别沉积环境在HF油田中的应用
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摘要
HF油田位于美索不达米亚平原东南端,目的层沉积于白垩纪中期的阿尔布阶,主要发育一套棕色砂岩与深棕—深灰色泥岩的互层。目的层位于海陆过渡的河控三角洲发育带,主要发育前三角洲、三角洲前缘、三角洲平原沉积相。由于岩心资料有限,利用测井资料和地震资料识别沉积环境显得尤其重要。文中充分利用波组的反射结构、连续性、振幅、频率、几何外形等地震响应,确认沉积微相类型;根据测井曲线(主要利用自然伽马和电阻率)的形态和幅度变化,结合岩性、韵律等地质特征识别划分单井沉积微相。识别出支流间湾、水下河道、河口坝、远砂坝等沉积微相,其中水下河道和砂坝为较好的储集环境。在单井分析的基础上,通过测井曲线对比建立连井剖面,掌握了砂体的连通性及物性变化特征,并与地震属性相结合,分析沉积相平面展布特征,预测出有利的储层发育带,为后期勘探开发提供了可靠依据。
HF Oilfield is located in the southeastern part of Mesopotamia Plain.The target zone is deposited in Albian,Middle Cretaceous,which mainly develops a set of the interbeds of brown sandstone and dark brown-dark gray mudstone.The target zone is located in the development zone of fluvial dominated delta of marine and land transition.Depositional environment of predelta,delta front and delta plain developed.It is extremely important to use the logging data and seismic data to identify the depositional environment due to limited core data.The sedimentary microfacies types are confirmed through the use of reflection configuration,continuity,amplitude,frequency and geometry configuration.According to the change of vonformation and amplitude of logging curves(mainly using gamma ray and resistivity),the sedimentary microfacies of single well is divided after combined with the geological features such as lithology and rhyme.Some sedimentary microfacies,including tributary bay,underwater channel,mouth bar,far bar,are identified,in which underwater channel and sand bar are good reservoir environment.Based on the analysis of single well,crosswell sections are established through the comparison of logging curves in this paper,which knows the change features of sandy connectivity and physical property.Combined with seismic attribute,plane distribution features of sedimentary facies are analyzed,and favorable reservoir development zones are predicted,which provides a reference for later exploration and development.
HF Oilfield is located in the southeastern part of Mesopotamia Plain.The target zone is deposited in Albian,Middle Cretaceous,which mainly develops a set of the interbeds of brown sandstone and dark brown-dark gray mudstone.The target zone is located in the development zone of fluvial dominated delta of marine and land transition.Depositional environment of predelta,delta front and delta plain developed.It is extremely important to use the logging data and seismic data to identify the depositional environment due to limited core data.The sedimentary microfacies types are confirmed through the use of reflection configuration,continuity,amplitude,frequency and geometry configuration.According to the change of vonformation and amplitude of logging curves(mainly using gamma ray and resistivity),the sedimentary microfacies of single well is divided after combined with the geological features such as lithology and rhyme.Some sedimentary microfacies,including tributary bay,underwater channel,mouth bar,far bar,are identified,in which underwater channel and sand bar are good reservoir environment.Based on the analysis of single well,crosswell sections are established through the comparison of logging curves in this paper,which knows the change features of sandy connectivity and physical property.Combined with seismic attribute,plane distribution features of sedimentary facies are analyzed,and favorable reservoir development zones are predicted,which provides a reference for later exploration and development.
引文
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[12]严科,毕义泉,赵红兵.胜坨油田三角洲前缘地层测井频谱分析及地质意义[J].断块油气田,2012,19(4):541-544.
[13]纪友亮,蒙启安,单敬福,等.塔南-南贝尔凹陷南屯组下部沉积体系平面展布特征[J].石油实验地质,2011,33(3):260-265.
[14]赵荣华,田景春,郝海燕,等.苏里格气田苏76、苏77井区山西组岩相类型及沉积相[J].断块油气田,2012,19(1):70-74.
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[16]杨江峰,关达,朱文斌,等.塔里木盆地塔中卡1三维工区碳酸盐岩储层预测技术与应用[J].石油与天然气地质,2012,33(1):61-69.
[17]俊林,何诚,徐敏,等.基于测井资料和地震属性分析地震相分布[J].工程地球物理学报,2010,6(7):732-735.
[18]雍世和,张超谟.测井数字处理与综合解释[M].东营:中国石油大学出版社,2007:459-468.
[19]杨瑞召,王萍,张志强,等.塔里木盆地巴什托地区泥盆系克孜尔塔格组钻测井沉积相分析[J].石油实验地质,2011,33(4):341-347.
[20]孙友海,马世忠,庞庆山,等.北三西西块测井相分析方法及研究:以北三西西块三角洲平原亚相为例[J].国外测井技术,2010(6):40-42.
[21]赵军,王淼,闫爽,等.自然电位测井在低阻油气层识别中的应用:以塔里木盆地吉拉克地区三叠系低阻油气层为例[J].石油与天然气地质,2011,32(2):245-250.
[22]吴元燕,吴胜和,蔡正旗.油矿地质学[M].北京:石油工业出版社,2009:133-152.
[23]张雷,卢双舫,张学娟,等.地震频谱成像的地质含义及在沉积特征研究中的应用[J].石油与天然气地质,2009,30(6):779-785.
[24]赵海涛,刘艳,许士朝,等.兴马地区沙三段地震相和沉积相分析[J].科技导报,2010,28(19):26-29.
[25]张云银,杨泽蓉,孙淑艳,等.临南洼陷三角洲地震岩相解释方法[J].石油与天然气地质,2011,31(3):404-410.
[26]Alsharhan A S,Nairn A E M.A review of the Cretaceous formations inthe Arabian peninsula and gulf:PartⅡ—Mid-Cretaceous(wasia group)stratigraphy and paleogeography[J].Journal of Petroleum Geology,1988,11(1):89-112.
[27]余宽宏,金振奎.地震相在塔里木盆地古城地区碳酸盐岩台地演化及特征分析中的应用[J].天然气地球科学,2011,22(1):115-120.
[28]崔永谦,秦凤启,卢永和,等.河流相沉积储层地震精细预测方法研究与应用:以渤海湾盆地冀中坳陷古近系河道砂为例[J].石油与天然气地质,2009,30(5):668-672.
[2]庄丽.东营凹陷永安镇三角洲层序地层与沉积体系[J].石油实验地质,2006,28(6):544-548.
[3]朱现胜.三角洲体系沉积微相的测井识别方法与应用[J].断块油气田,2007,14(5):91-92.
[4]宋子齐,景成,孙宝佃,等.自然电位、自然伽马测井曲线在文15块的应用[J].断块油气田,2011,18(1):130-133.
[5]杨瑞召,王萍,张志强,等.塔里木盆地巴什托地区泥盆系克孜尔塔格组钻测井沉积相分析[J].石油实验地质,2011,33(4):341-347.
[6]刘忠宝,杨圣彬,焦存礼,等.塔里木盆地巴楚隆起中、下寒武统高精度层序地层与沉积特征[J].石油与天然气地质,2012,33(1):70-76.
[7]闫鹏,雷以玲,胡斌.东风港油田沙四段三角洲相沉积的粒度特征[J].断块油气田,2009,16(6):24-27.
[8]何建红,汤军,宋鹏,等.甲油气田W组测井相分析[J].重庆科技学院学报:自然科学版,2010,12(2):25-28.
[9]马小刚,李子峰,张春梅.测井相分析在岩性油气藏储层预测中的应用[J].勘探地球物理进展,2010,33(1):58-63.
[10]李新虎,石杰,郭媛.白音查干凹陷腾格尔组测井沉积微相研究[J].断块油气田,2012,19(2):261-265.
[11]闵小刚,陈开远,范廷恩.井-震结合进行河流相储层非均质性表征:以渤海湾盆地黄河口凹陷渤中263油田为例[J].石油与天然气地质,2011,31(3):375-381.
[12]严科,毕义泉,赵红兵.胜坨油田三角洲前缘地层测井频谱分析及地质意义[J].断块油气田,2012,19(4):541-544.
[13]纪友亮,蒙启安,单敬福,等.塔南-南贝尔凹陷南屯组下部沉积体系平面展布特征[J].石油实验地质,2011,33(3):260-265.
[14]赵荣华,田景春,郝海燕,等.苏里格气田苏76、苏77井区山西组岩相类型及沉积相[J].断块油气田,2012,19(1):70-74.
[15]郭川,李国蓉,杨莹莹,等.川东南地区长兴组层序地层与沉积相特征[J].断块油气田,2011,18(6):722-724.
[16]杨江峰,关达,朱文斌,等.塔里木盆地塔中卡1三维工区碳酸盐岩储层预测技术与应用[J].石油与天然气地质,2012,33(1):61-69.
[17]俊林,何诚,徐敏,等.基于测井资料和地震属性分析地震相分布[J].工程地球物理学报,2010,6(7):732-735.
[18]雍世和,张超谟.测井数字处理与综合解释[M].东营:中国石油大学出版社,2007:459-468.
[19]杨瑞召,王萍,张志强,等.塔里木盆地巴什托地区泥盆系克孜尔塔格组钻测井沉积相分析[J].石油实验地质,2011,33(4):341-347.
[20]孙友海,马世忠,庞庆山,等.北三西西块测井相分析方法及研究:以北三西西块三角洲平原亚相为例[J].国外测井技术,2010(6):40-42.
[21]赵军,王淼,闫爽,等.自然电位测井在低阻油气层识别中的应用:以塔里木盆地吉拉克地区三叠系低阻油气层为例[J].石油与天然气地质,2011,32(2):245-250.
[22]吴元燕,吴胜和,蔡正旗.油矿地质学[M].北京:石油工业出版社,2009:133-152.
[23]张雷,卢双舫,张学娟,等.地震频谱成像的地质含义及在沉积特征研究中的应用[J].石油与天然气地质,2009,30(6):779-785.
[24]赵海涛,刘艳,许士朝,等.兴马地区沙三段地震相和沉积相分析[J].科技导报,2010,28(19):26-29.
[25]张云银,杨泽蓉,孙淑艳,等.临南洼陷三角洲地震岩相解释方法[J].石油与天然气地质,2011,31(3):404-410.
[26]Alsharhan A S,Nairn A E M.A review of the Cretaceous formations inthe Arabian peninsula and gulf:PartⅡ—Mid-Cretaceous(wasia group)stratigraphy and paleogeography[J].Journal of Petroleum Geology,1988,11(1):89-112.
[27]余宽宏,金振奎.地震相在塔里木盆地古城地区碳酸盐岩台地演化及特征分析中的应用[J].天然气地球科学,2011,22(1):115-120.
[28]崔永谦,秦凤启,卢永和,等.河流相沉积储层地震精细预测方法研究与应用:以渤海湾盆地冀中坳陷古近系河道砂为例[J].石油与天然气地质,2009,30(5):668-672.
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