苏北盆地金湖凹陷热史与成藏期判识

李亚军

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苏北盆地金湖凹陷热史与成藏期判识

李亚军

文章导航 > 沉积学报 > 2011 > 29(2): 395-401

李亚军. 苏北盆地金湖凹陷热史与成藏期判识[J]. 沉积学报, 2011, 29(2): 395-401.

引用本文:

李亚军. 苏北盆地金湖凹陷热史与成藏期判识[J]. 沉积学报, 2011, 29(2): 395-401.

LI Yajun. Thermal History Reconstruction and Hydrocarbon Accumulation Period Discrimination of Jinhu Depression in Subei Basin[J]. Acta Sedimentologica Sinica, 2011, 29(2): 395-401.

Citation:

LI Yajun. Thermal History Reconstruction and Hydrocarbon Accumulation Period Discrimination of Jinhu Depression in Subei Basin[J]. Acta Sedimentologica Sinica, 2011, 29(2): 395-401.

李亚军. 苏北盆地金湖凹陷热史与成藏期判识[J]. 沉积学报, 2011, 29(2): 395-401.

引用本文:

李亚军. 苏北盆地金湖凹陷热史与成藏期判识[J]. 沉积学报, 2011, 29(2): 395-401.

LI Yajun. Thermal History Reconstruction and Hydrocarbon Accumulation Period Discrimination of Jinhu Depression in Subei Basin[J]. Acta Sedimentologica Sinica, 2011, 29(2): 395-401.

Citation:

LI Yajun. Thermal History Reconstruction and Hydrocarbon Accumulation Period Discrimination of Jinhu Depression in Subei Basin[J]. Acta Sedimentologica Sinica, 2011, 29(2): 395-401.

苏北盆地金湖凹陷热史与成藏期判识

李亚军

中国石油大学北京 102249

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李亚军

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Thermal History Reconstruction and Hydrocarbon Accumulation Period Discrimination of Jinhu Depression in Subei Basin

LI Yajun

Research Center of Basin & Reservoir,China University of Petroleum, Beijing 102249

More Information

Corresponding author: LI Yajun

摘要

摘要: 在镜质体反射率和磷灰石裂变径迹系统测试分析的基础上，对金湖凹陷西斜坡和卞闵杨构造带进行古地温梯度计算和热史恢复。根据镜质体反射率计算出西斜坡的古地温范围介于45.6～128.4℃，古地温梯度为45.5℃/km；卞闵杨构造带古地温为26.4～120.3℃，古地温梯度为42.7℃/km。根据磷灰石裂变径迹计算出西斜坡古地温梯度为40.7℃/km，卞闵杨构造带为45.8℃/km。对比分析得出凹陷内不同构造带均具有古地温梯度大于今地温梯度的规律，西斜坡古地温梯度高于现今10.4～15.2℃/km，卞闵杨构造带古地温梯度高于现今12.4～15.3℃/km。对西斜坡和卞闵杨构造带典型井进行热史模拟，得出古地温梯度随着凹陷地层年代变新而降低，三垛构造事件所导致的抬升剥蚀之前，凹陷已达到最大古地温。成熟度史反映出金湖凹陷埋深在1 000 m处Ro为0.4%，烃源岩进入低熟阶段，在1 900 m处Ro为0.65%，温度达到90℃，烃源岩进入生烃高峰阶段。将金湖凹陷西斜坡典型单井埋藏史—热史与包裹体均一温度综合分析，判识出成藏期介于47～41.5 Ma，确定了三垛期为金湖凹陷主成藏期。
- 金湖凹陷 /
- 地温梯度 /
- 古温标参数 /
- 热史恢复 /
- 成藏期
Abstract: Based on the analysis of the vitrinite reflectance and apatite fission track inclusions system testing, we carried out the calculation of paleotemperature gradient and reconstruction of thermal history , and then identified the paleotemperature gradient of west slope and Bianminyang tectonic zone of Jinhu depression. According to the vitrinite reflectance, we calculated that the range of the paleotemperature being between 45.6~128.4℃ and the paleotemperature gradient was
45.5 ℃/km in the west slope, the paleotemperature in Bianminyang tectonic zone was 26.4~120.3℃ and the paleotemperature gradient was 42.7℃/km. According to the apatite fission track, we calculated that the paleotemperature gradient in the west slope was 40.7℃/km, and in Bianminyang tectonic zone was 45.8℃/km. From the comparative analysis with different tectonic zones of Jinhu depression, we concluded a law that the paleo temperature gradient was higher than presentday geothermal gradient, specifically as follows: in the west slope, paleotemperature was 10.4~15.2℃/km higher than the current, and in Bianminyang tectonic zone paleotemperature was 12.4~15.3℃/km higher than the present.By the thermal history modeling of typical wells in west slope and Bianminyang tectonic zone, it could be seen that the paleogeothermal gradient became lower with the stratigraphical time changed for the new. It shows that the geothermal gradient of K2t~E1f was higher than E2d~Ny. Before the uplift and erosion caused by the Sanduo tectonic events, the paleotemperature of depression had reached the maximum. The maturity history of depression reflected that the Ro was 0.4% in the depth of 1 000 m of Jinhu depression. The source rock was at the lowmature stage.The Ro was 0.65% in the depth of 1 900 m and the temperature reached 90℃, the hydrocarbon source rocks entered the peak phase. The homogenization temperature of fluid inclusion samples was between 62~93℃ of Well Cui 2 in the west slope. Through the comprehensive analysis of the burial historythermal history of typical singlewell and the homogenization temperature of fluid inclusions, it can be identified that the accumulation period of Jinhu depression was between 47~41.5 Ma.Then it could be judged that the Sanduo period(E2s)was the main hydrocarbon accumulation period of Jinhu depression.
- Jinhu depression /
- geothermal gradient /
- ancient temperature scale /
- thermal history reconstruction /
- hydrocarbon accumulation period

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[1]	陈治军, 王文慧, 刘金丰, 白晓寅, 王小多, 李科社, 李子梁. 银额盆地哈日凹陷多类型油气藏共生特征及其成藏机理 . 沉积学报, 2022, 40(2): 557-572. doi: 10.14027/j.issn.1000-0550.2020.136
[2]	霍少川, 董桂玉, 王兵杰, 张振国, 刘金华, 刘建宁, 曹玉鹏, 冷春鹏. 金湖凹陷阜宁组二段混合沉积研究 . 沉积学报, 2019, 37(1): 177-188. doi: 10.14027/j.issn.1000-0550.2018.119
[3]	孟祥超, 陈能贵, 苏静, 徐洋, 王小军, 邹志文, 李亚哲, 郭华军. 砂砾岩体不同岩相油气充注期储集性能差异及成藏意义——以玛湖凹陷西斜坡区百口泉组油藏为例 . 沉积学报, 2016, 34(3): 606-614. doi: 10.14027/j.cnki.cjxb.2016.03.018
[4]	田涛, 任战利, 吴晓青, 马国福, 张睿胜, 杨智明, 郭科. 雅布赖盆地萨尔台凹陷古地温场与油气成藏期次 . 沉积学报, 2015, 33(4): 836-844. doi: 10.14027/j.cnki.cjxb.2015.04.022
[5]	. 东濮凹陷白庙地区深层天然气成藏期次研究 . 沉积学报, 2012, 30(4): 779-786.
[6]	. 贝尔凹陷油成藏要素空间匹配关系及对油成藏的控制作用 . 沉积学报, 2012, 30(6): 1149-1155.
[7]	陈中红. 东营凹陷古近系升藿烷生物标志物参数分布及演变规律 . 沉积学报, 2011, 29(1): 173-183.
[8]	崔军平. 海拉尔盆地贝尔凹陷热演化史与油气关系研究 . 沉积学报, 2011, 29(2): 388-394.
[9]	刚文哲. 高邮凹陷真武油田成藏期与动态成藏过程分析 . 沉积学报, 2011, 29(3): 580-586.
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苏北盆地金湖凹陷热史与成藏期判识

李亚军

中国石油大学北京 102249

通讯作者: 李亚军

收稿日期: 1900-01-01
修回日期: 1900-01-01
刊出日期: 2011-04-10

关键词:

摘要: 在镜质体反射率和磷灰石裂变径迹系统测试分析的基础上，对金湖凹陷西斜坡和卞闵杨构造带进行古地温梯度计算和热史恢复。根据镜质体反射率计算出西斜坡的古地温范围介于45.6～128.4℃，古地温梯度为45.5℃/km；卞闵杨构造带古地温为26.4～120.3℃，古地温梯度为42.7℃/km。根据磷灰石裂变径迹计算出西斜坡古地温梯度为40.7℃/km，卞闵杨构造带为45.8℃/km。对比分析得出凹陷内不同构造带均具有古地温梯度大于今地温梯度的规律，西斜坡古地温梯度高于现今10.4～15.2℃/km，卞闵杨构造带古地温梯度高于现今12.4～15.3℃/km。对西斜坡和卞闵杨构造带典型井进行热史模拟，得出古地温梯度随着凹陷地层年代变新而降低，三垛构造事件所导致的抬升剥蚀之前，凹陷已达到最大古地温。成熟度史反映出金湖凹陷埋深在1 000 m处Ro为0.4%，烃源岩进入低熟阶段，在1 900 m处Ro为0.65%，温度达到90℃，烃源岩进入生烃高峰阶段。将金湖凹陷西斜坡典型单井埋藏史—热史与包裹体均一温度综合分析，判识出成藏期介于47～41.5 Ma，确定了三垛期为金湖凹陷主成藏期。

English Abstract

Thermal History Reconstruction and Hydrocarbon Accumulation Period Discrimination of Jinhu Depression in Subei Basin

LI Yajun

Research Center of Basin & Reservoir,China University of Petroleum, Beijing 102249

Corresponding author: LI Yajun

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2011-04-10

Keywords:

Abstract: Based on the analysis of the vitrinite reflectance and apatite fission track inclusions system testing, we carried out the calculation of paleotemperature gradient and reconstruction of thermal history , and then identified the paleotemperature gradient of west slope and Bianminyang tectonic zone of Jinhu depression. According to the vitrinite reflectance, we calculated that the range of the paleotemperature being between 45.6~128.4℃ and the paleotemperature gradient was
45.5 ℃/km in the west slope, the paleotemperature in Bianminyang tectonic zone was 26.4~120.3℃ and the paleotemperature gradient was 42.7℃/km. According to the apatite fission track, we calculated that the paleotemperature gradient in the west slope was 40.7℃/km, and in Bianminyang tectonic zone was 45.8℃/km. From the comparative analysis with different tectonic zones of Jinhu depression, we concluded a law that the paleo temperature gradient was higher than presentday geothermal gradient, specifically as follows: in the west slope, paleotemperature was 10.4~15.2℃/km higher than the current, and in Bianminyang tectonic zone paleotemperature was 12.4~15.3℃/km higher than the present.By the thermal history modeling of typical wells in west slope and Bianminyang tectonic zone, it could be seen that the paleogeothermal gradient became lower with the stratigraphical time changed for the new. It shows that the geothermal gradient of K2t~E1f was higher than E2d~Ny. Before the uplift and erosion caused by the Sanduo tectonic events, the paleotemperature of depression had reached the maximum. The maturity history of depression reflected that the Ro was 0.4% in the depth of 1 000 m of Jinhu depression. The source rock was at the lowmature stage.The Ro was 0.65% in the depth of 1 900 m and the temperature reached 90℃, the hydrocarbon source rocks entered the peak phase. The homogenization temperature of fluid inclusion samples was between 62~93℃ of Well Cui 2 in the west slope. Through the comprehensive analysis of the burial historythermal history of typical singlewell and the homogenization temperature of fluid inclusions, it can be identified that the accumulation period of Jinhu depression was between 47~41.5 Ma.Then it could be judged that the Sanduo period(E2s)was the main hydrocarbon accumulation period of Jinhu depression.

李亚军. 苏北盆地金湖凹陷热史与成藏期判识[J]. 沉积学报, 2011, 29(2): 395-401.

引用本文:

李亚军. 苏北盆地金湖凹陷热史与成藏期判识[J]. 沉积学报, 2011, 29(2): 395-401.

LI Yajun. Thermal History Reconstruction and Hydrocarbon Accumulation Period Discrimination of Jinhu Depression in Subei Basin[J]. Acta Sedimentologica Sinica, 2011, 29(2): 395-401.

Citation:

LI Yajun. Thermal History Reconstruction and Hydrocarbon Accumulation Period Discrimination of Jinhu Depression in Subei Basin[J]. Acta Sedimentologica Sinica, 2011, 29(2): 395-401.

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苏北盆地金湖凹陷热史与成藏期判识

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李亚军

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Thermal History Reconstruction and Hydrocarbon Accumulation Period Discrimination of Jinhu Depression in Subei Basin

Corresponding author: LI Yajun

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苏北盆地金湖凹陷热史与成藏期判识

中国石油大学北京 102249

通讯作者: 李亚军

English Abstract

Thermal History Reconstruction and Hydrocarbon Accumulation Period Discrimination of Jinhu Depression in Subei Basin

Research Center of Basin & Reservoir,China University of Petroleum, Beijing 102249

Corresponding author: LI Yajun

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苏北盆地金湖凹陷热史与成藏期判识

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Thermal History Reconstruction and Hydrocarbon Accumulation Period Discrimination of Jinhu Depression in Subei Basin

Corresponding author: LI Yajun

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苏北盆地金湖凹陷热史与成藏期判识

中国石油大学 北京 102249

通讯作者: 李亚军

English Abstract

Thermal History Reconstruction and Hydrocarbon Accumulation Period Discrimination of Jinhu Depression in Subei Basin

Research Center of Basin & Reservoir,China University of Petroleum, Beijing 102249

Corresponding author: LI Yajun

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中国石油大学北京 102249