| 歧南断阶带温度压力场研究 |
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| 引用本文： | 叶加仁,杨香华,孙永传,周士科,武文来.歧南断阶带温度压力场研究[J].中国海上油气,1997(3). |
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| 作者姓名： | 叶加仁 杨香华 孙永传 周士科 武文来 |
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| 作者单位： | 中国地质大学 武汉430074
(叶加仁，杨香华，孙永传)，中国海洋石油渤海公司 天津300452
(周士科)，中国海洋石油渤海公司 天津300452(武文来) |
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| 摘 要： | 综合分析各种地质、地球化学和地震资料并结合动态模拟技术,探讨了歧南断阶带的温度压力场特征及其演化规律。研究结果表明,歧南断阶带经历过多期复杂的热事件,古地温梯度明显高于现今地温梯度,热流体活动强烈。现今剖面压力系统由浅部正常压力、中部弱超压和深部强超压3个部分组成,断层的发育特征对超压的分布具明显且重要的控制作用;古压力场的演化经历了原始积累、部分释放、缓慢再积累和快速再积累4个阶段。
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| 关 键 词： | 温度场 热流体 压力场 歧南断阶带 异常高压 |
STUDY ON TEMPERATURE AND PRESSURE FIELDS IN QINAN FAULT STEP BELT |
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| Ye Jiaren et al..STUDY ON TEMPERATURE AND PRESSURE FIELDS IN QINAN FAULT STEP BELT[J].China Offshore Oil and Gas,1997(3). |
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| Authors: | Ye Jiaren |
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| Abstract: | By analyzing the data of geology, geochemistry and seismic synthetically and using the tech
nique of dynamic modeling,it discusses the characteristics of temperature and pressure fields in Qi-
nan fault step belt. Qinan fault step belt has undergone multiple thermal events with higher paleo-
temperature gradient and hydrothermal fluid flow. The current pressure system in profiles consists
of normal pressure,low overpressure and high overpressure from top to bottom,which were con
trolled mainly by the distribution of faults obviously. The evolution of paleo-pressure field can be
divided into four stages as initial accumulation, partial pressure expulsion, slow re-accumulation
and rapid re-accumulation. |
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| Keywords: | temperature field hydrothermal fluid pressure field Qinan step-fault belt abnormally overpressure |
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