川东板东构造长兴组生物礁及其地震特征研究
|
摘要
根据板东构造板东4井等长兴组钻探资料,对长兴组的生物礁进行了研究。研究表明板东构造长兴组储集岩有生物(屑)泥晶灰岩—含生物(屑)泥晶灰岩、礁灰岩和白云岩。综合储集岩物性特征、区域钻、测井资料及野外剖面,总结了生物礁的形成与演化模式及模式各部位所对应的岩性和物性。通过地震响应特征、反演等技术建立了长兴组储层识别模式,利用对应速度、Landmark属性提取的储层有效厚度经计算机网格化编制出了长兴组储层厚度分布预测图,与钻测井厚度对比,证实板东4井生物礁为点礁。
According to log data of Bandong 4 well in Changxing Formation in Bandong structure of the east of Sichuan Basin,reservoir rocks and organic reef of Changxing Formation were studied in this paper.The research indicated that there are biomicrites,reef limestones,and dolomites in reservoir rocks.By means of reservoir rock's physical property,areal logging data and field sections,model of organic reef's formation and evolution was summarized.Identification model of reservoir in Changxing Formation has been established by means of seismic response characteristics and inversion technology,and thickness distribution of reservoir was computed by computer using corresponding velocity and effective thickness of reservoir extracted by Landmark software.Compared with drilling depth,it was proved that organic reef in Bandong 4 well was point reef.
According to log data of Bandong 4 well in Changxing Formation in Bandong structure of the east of Sichuan Basin,reservoir rocks and organic reef of Changxing Formation were studied in this paper.The research indicated that there are biomicrites,reef limestones,and dolomites in reservoir rocks.By means of reservoir rock's physical property,areal logging data and field sections,model of organic reef's formation and evolution was summarized.Identification model of reservoir in Changxing Formation has been established by means of seismic response characteristics and inversion technology,and thickness distribution of reservoir was computed by computer using corresponding velocity and effective thickness of reservoir extracted by Landmark software.Compared with drilling depth,it was proved that organic reef in Bandong 4 well was point reef.
引文
[1]马永生,傅强,郭彤楼,等.川东北地区普光气田长兴—飞仙关气藏成藏模式与成藏过程[J].石油实验地质,2005,27(5):455-460.
[2]牟传龙,谭钦银,余谦,等.川东北地区上二叠统长兴组生物礁组成及成礁模式[J].沉积与特提斯地质,2004,24(3):65-71.
[3]范嘉松,吴亚生.川东二叠纪生物礁的再认识[J].石油与天然气地质,2002,23(1):12-18.
[4]洪海涛,王一刚,杨文泉,等.川东地区长兴组沉积相和生物礁气藏分布规律[J].天然气工业,2008,28(1):38-41.
[5]厚东琳,程胜辉,黄仁春.川东北南江区块储集特征及储层预测[J].南方油气,2005,18(4):43-46.
[6]任兴国,罗利,姚声贤,等.川东地区生物礁测井预测方法研究[J].石油勘探与开发,2000,27(1):41-43.
[7]黄花香,吴战培,熊艳,等.速度反演技术在四川盆地储层预测中的应用[J].石油勘探,2002,41(4):56-60.
[2]牟传龙,谭钦银,余谦,等.川东北地区上二叠统长兴组生物礁组成及成礁模式[J].沉积与特提斯地质,2004,24(3):65-71.
[3]范嘉松,吴亚生.川东二叠纪生物礁的再认识[J].石油与天然气地质,2002,23(1):12-18.
[4]洪海涛,王一刚,杨文泉,等.川东地区长兴组沉积相和生物礁气藏分布规律[J].天然气工业,2008,28(1):38-41.
[5]厚东琳,程胜辉,黄仁春.川东北南江区块储集特征及储层预测[J].南方油气,2005,18(4):43-46.
[6]任兴国,罗利,姚声贤,等.川东地区生物礁测井预测方法研究[J].石油勘探与开发,2000,27(1):41-43.
[7]黄花香,吴战培,熊艳,等.速度反演技术在四川盆地储层预测中的应用[J].石油勘探,2002,41(4):56-60.
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