地震—地质方法识别生物礁
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摘要
生物礁的油气勘探工程涉及到多个学科,其中地震—地质解释是该项工程的先导和基础。地震—地质解释工作的质量将直接影响礁的地质评价及礁油藏勘探的成功率。准确识别生物礁需要认识造礁生物的生长特点、了解研究区的地质演化背景、明确生物礁的地震反射特点与另外几种地质体反射特征的区别,要特别注意应用磁力及重力资料开展综合分析;在已有钻井地区,可进一步依据测井资料及岩心薄片分析资料,可更准确地识别出生物礁。
Oil/gas exploration engineering of reefs is related to multidiscipline, among which the seismic-geologic interpretation is precursor and basis of the engineering. The quality of seismic-geologic interpretation will directly affect the geologic evaluation of reefs and successful rate of reef reservoir exploration. Accurate identification of reefs requires us to know the growing feature of reef-building organism and geologic evolution rule in studied zone, clarify seismic reflection feature of reefs and differential reflection feature from other geologic bodies, and especially it should be noted that application of magnetic and gravity data to develop comprehensive analysis; it can further rely on logging data and core slices to analyze the data in the areas of drilled wells, which can more accurately identify the reefs.
Oil/gas exploration engineering of reefs is related to multidiscipline, among which the seismic-geologic interpretation is precursor and basis of the engineering. The quality of seismic-geologic interpretation will directly affect the geologic evaluation of reefs and successful rate of reef reservoir exploration. Accurate identification of reefs requires us to know the growing feature of reef-building organism and geologic evolution rule in studied zone, clarify seismic reflection feature of reefs and differential reflection feature from other geologic bodies, and especially it should be noted that application of magnetic and gravity data to develop comprehensive analysis; it can further rely on logging data and core slices to analyze the data in the areas of drilled wells, which can more accurately identify the reefs.
引文
[1]范嘉松,张维.生物礁的基本概念、分类及识别特征.岩石学报,1985,1(3):45~60
[2]陈斯忠,胡平忠.珠江口盆地第三纪生物礁及其找油意义.中国海上油气,1987,1(1):3~10
[3]21世纪中国暨国际油气勘探展望.北京:中国石化出版社,2003,20~30
[4]何炎,胡平忠.南海东沙隆起早中新世生物礁中的大有孔虫.古生物学报,1995,34(1):18~23
[5]汤祖伟.南方海相碳酸盐岩分布区1994~1996年电法勘探找油实践.海相油气地质,1996,1(4):45~52
[6]施和生,杨少坤.珠江口盆地大型礁油田地质特征.21世纪中国暨国际油气勘探展望,北京:中国石化出版社,2003,415~419
[7]陈海云,林春明等.济阳拗陷新生代火成岩的识别.石油地球物理勘探,2005,40(6):665~669
[8]许红等.西沙群岛晚第三纪生物礁矿物相研究及其意义.海洋地质与第四纪地质,1994,14(4).35~40
[9]王国忠.南海北部大陆架现代礁源碳酸盐与陆源碎屑的混合沉积作用.古地理学报,2001,3(2):47~54
[10]魏喜,祝永军.南中国海构造框架和储层地质特征概述.特种油气藏,2004,11(4):126
[2]陈斯忠,胡平忠.珠江口盆地第三纪生物礁及其找油意义.中国海上油气,1987,1(1):3~10
[3]21世纪中国暨国际油气勘探展望.北京:中国石化出版社,2003,20~30
[4]何炎,胡平忠.南海东沙隆起早中新世生物礁中的大有孔虫.古生物学报,1995,34(1):18~23
[5]汤祖伟.南方海相碳酸盐岩分布区1994~1996年电法勘探找油实践.海相油气地质,1996,1(4):45~52
[6]施和生,杨少坤.珠江口盆地大型礁油田地质特征.21世纪中国暨国际油气勘探展望,北京:中国石化出版社,2003,415~419
[7]陈海云,林春明等.济阳拗陷新生代火成岩的识别.石油地球物理勘探,2005,40(6):665~669
[8]许红等.西沙群岛晚第三纪生物礁矿物相研究及其意义.海洋地质与第四纪地质,1994,14(4).35~40
[9]王国忠.南海北部大陆架现代礁源碳酸盐与陆源碎屑的混合沉积作用.古地理学报,2001,3(2):47~54
[10]魏喜,祝永军.南中国海构造框架和储层地质特征概述.特种油气藏,2004,11(4):126
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