塔中地区中古51井区良里塔格组台内礁滩演化模式
|
摘要
礁滩相带是碳酸盐岩油气勘探的有利沉积相带,弄清台内礁滩相带的分布和演化规律,对塔中地区台地内部油气勘探具有重要的意义。通过宏微观资料,利用测井曲线与地震相结合手段,对不同层段内岩性与沉积微相特征进行精细识别,对中古51井区良里塔格组沉积相纵横向分布变化规律进行详细分析并建立礁滩相带迁移演化模式。认为中古51井区沉积相以灰泥丘、台内滩和滩间海为主,台内点礁和生屑滩相次之;中古51井区台内礁滩相带在良里塔格组三段-二段沉积早期形成,平面上分布在塔中10号带附近,台缘礁滩相带形成于良里塔格组二段沉积晚期-一段沉积时期,沿塔中Ⅰ号带分布。总体上,礁滩相带具有由下至上,从台内向台缘逐步迁移演化的特征。
Reef and shoal facies was a favorable facies belt of carbonate oil and gas exploration,to clarify the distribution and evolutionary pattern of intra-platform reef and shoal had great significance for carbonate oil and gas exploration in Tazhong Area.Through analysis of macroscopic and microscopic data,in combination of logging data with seismic data,the characteristics of lithology and sedimentary microfacies in different layers were recognized,to the longitudinal and transverse distribution changes sedimentary facies were analyzed and variation pattern in Lianglitage Formation of Wellblock Zhonggu 51 was established.It was considered that in the wellblock the mud mound,intra-platform shoal and interbank sea are the major sedimentary facies,and the intra-platform reef and bioclastic banks are next.The intra-platform reef and shoal are formed early in 3-2 members of Lianglitage Formation,and it is distributed near the Tazhong No.10 Zone.And the high energy zone of marginal-platform reef and shoal are formed at the late stage of the 2nd member to 1st member of Lianglitage Formation,and it is distributed along Tazhong No.ⅠZone.On the whole,the reef and shoal facies has gradual evolutionary characteristics of from the bottom to the top and from intra-platform to marginal-platform.
Reef and shoal facies was a favorable facies belt of carbonate oil and gas exploration,to clarify the distribution and evolutionary pattern of intra-platform reef and shoal had great significance for carbonate oil and gas exploration in Tazhong Area.Through analysis of macroscopic and microscopic data,in combination of logging data with seismic data,the characteristics of lithology and sedimentary microfacies in different layers were recognized,to the longitudinal and transverse distribution changes sedimentary facies were analyzed and variation pattern in Lianglitage Formation of Wellblock Zhonggu 51 was established.It was considered that in the wellblock the mud mound,intra-platform shoal and interbank sea are the major sedimentary facies,and the intra-platform reef and bioclastic banks are next.The intra-platform reef and shoal are formed early in 3-2 members of Lianglitage Formation,and it is distributed near the Tazhong No.10 Zone.And the high energy zone of marginal-platform reef and shoal are formed at the late stage of the 2nd member to 1st member of Lianglitage Formation,and it is distributed along Tazhong No.ⅠZone.On the whole,the reef and shoal facies has gradual evolutionary characteristics of from the bottom to the top and from intra-platform to marginal-platform.
引文
[1]孙龙德,方朝亮,李峰,等.中国沉积盆地油气勘探开发实践与沉积学研究进展[J].石油勘探与开发,2010,37(4):385～396.
[2]Jardine D,Wilshart J W.Carbonate reservoir description[A].Reservoir sedimentology[C].Tulsa:SEPM,1987:129～152.
[3]顾家裕,张兴阳,罗平.塔里木盆地奥陶系台地边缘生物礁、滩发育特征[J].石油与天然气地质,2005,26(3):277～283.
[4]赵宗举,周新源,王招明,等.塔里木盆地奥陶系边缘相分布及储层主控因素[J].石油与天然气地质,2007,28(6):738～744.
[5]谭秀成,刘晓光,陈景山,等.磨溪气田嘉二段陆表海碳酸盐岩台地内滩体发育规律[J].沉积学报,2009,27(5):995～1001.
[6]马永生,牟传龙,谭钦银,等.达县-宣汉地区长兴组-飞仙关组礁滩相特征及其对储层的制约[J].地学前缘,2007,14(1):182～191.
[7]王招明,赵宽志,邬光辉,等.塔中Ⅰ号坡折带上奥陶统礁滩型储层发育特征及其主控因素[J].石油与天然气地质,2007,28(6):797～801.
[8]王成林,邬光辉,崔文娟,等.塔里木盆地奥陶系鹰山组台内滩的特征与分布[J].沉积学报,2011,29(6):1048～1057.
[9]Dizaji B E,Bonab H R.Effects of depositional and diagenetic characteristics on carbonate reservoir quality:a case study from the southpars gas field in the persian gulf[J].Petroleum Geoscience,2009,15(4):325～344.
[10]贾承造.中国塔里木盆地构造特征与油气[M].北京:石油工业出版社,1997.
[11]丁熊,陈景山,谭秀成,等.川中-川南过渡带雷口坡组台内滩组合特征[J].石油勘探与开发,2012,39(4):444～451.
[12]解发川,郭川,董文玉,等.泸州古隆起地区嘉一-嘉二段台内滩演化分析[J].天然气技术与经济,2011,5(6):6～10.
[2]Jardine D,Wilshart J W.Carbonate reservoir description[A].Reservoir sedimentology[C].Tulsa:SEPM,1987:129～152.
[3]顾家裕,张兴阳,罗平.塔里木盆地奥陶系台地边缘生物礁、滩发育特征[J].石油与天然气地质,2005,26(3):277～283.
[4]赵宗举,周新源,王招明,等.塔里木盆地奥陶系边缘相分布及储层主控因素[J].石油与天然气地质,2007,28(6):738～744.
[5]谭秀成,刘晓光,陈景山,等.磨溪气田嘉二段陆表海碳酸盐岩台地内滩体发育规律[J].沉积学报,2009,27(5):995～1001.
[6]马永生,牟传龙,谭钦银,等.达县-宣汉地区长兴组-飞仙关组礁滩相特征及其对储层的制约[J].地学前缘,2007,14(1):182～191.
[7]王招明,赵宽志,邬光辉,等.塔中Ⅰ号坡折带上奥陶统礁滩型储层发育特征及其主控因素[J].石油与天然气地质,2007,28(6):797～801.
[8]王成林,邬光辉,崔文娟,等.塔里木盆地奥陶系鹰山组台内滩的特征与分布[J].沉积学报,2011,29(6):1048～1057.
[9]Dizaji B E,Bonab H R.Effects of depositional and diagenetic characteristics on carbonate reservoir quality:a case study from the southpars gas field in the persian gulf[J].Petroleum Geoscience,2009,15(4):325～344.
[10]贾承造.中国塔里木盆地构造特征与油气[M].北京:石油工业出版社,1997.
[11]丁熊,陈景山,谭秀成,等.川中-川南过渡带雷口坡组台内滩组合特征[J].石油勘探与开发,2012,39(4):444～451.
[12]解发川,郭川,董文玉,等.泸州古隆起地区嘉一-嘉二段台内滩演化分析[J].天然气技术与经济,2011,5(6):6～10.
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