测井—地化结合法探讨南堡凹陷潜山源控藏作用

现代地质 ›› 2015, Vol. 29 ›› Issue (4): 922-929.

测井—地化结合法探讨南堡凹陷潜山源控藏作用

董月霞¹，李素梅^2,3，陈安定⁴，王政军¹，张鹏³，陈君³

(1.中国石油冀东油田分公司，河北唐山063004；2.中国石油大学(北京)油气资源与探测国家重点实验室，北京102249；3.中国石油大学(北京)地球科学学院，北京102249；4.中国石化江苏油田分公司地质科学研究院, 江苏扬州225009)

出版日期:2015-07-08 发布日期:2015-10-29
通讯作者: 李素梅，女，教授，1968年出生，石油地质地球化学专业，主要从事油气地质地球化学研究工作。
作者简介:董月霞，女，博士，教授级高级工程师，1968年出生，石油地质学专业，主要从事油气勘探地质综合研究与油气田勘探生产实践工作。Email: dongyx@petrochina.com.cn。
基金资助:
国家科技重大专项(2011ZX05006-006-02-006)；教育部高等学校博士点专项基金项目(20120007110002)；资源与探测国家重点实验室基金项目(PRP/indep-1-1101，PRP2009-02)。

Controlling of Hydrocarbons Expulsion of Source Rock on Buried Hill Hydrocarbon Reservoir in Nanpu Depression by Acoustic Logging Methodology

DONG Yue-xia¹，LI Su-mei^2,3，CHEN An-ding⁴，WANG Zheng-jun¹，ZHANG Peng³，CHEN Jun³

(1.PetroChina Jidong Oilfield Company, Tangshan，Hebei063004, China；2.State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249,China；3.College of Geosciences, China University of Petroleum, Beijing 102249, China；4.Geological Research Institute of SINOPEC Jiangsu Oilfield Company, Yangzhou, Jiangsu 225009, China)

Online:2015-07-08 Published:2015-10-29

摘要/Abstract

摘要：

渤海湾盆地南堡凹陷潜山已发现数口工业油气流井，深部潜山油气资源丰富，但该区潜山勘探一直存在有利区预测困难的难题。潜山上覆烃源岩的排烃分析可提供潜山油气勘探的重要依据，传统的排烃研究需大量钻井取样与样品分析测试数据，尝试利用声波时差与地球化学结合途径，研究烃源岩的排烃作用并预测有利潜山含油气区。通过对典型井的声波测井与地球化学研究，建立了南堡凹陷声波测井—地球化学指示排烃综合模型，应用该模型对南堡油田33口探井进行了排烃研究。结果表明，南堡油田2号、3号构造带潜山上覆烃源岩下排烃厚度最大、南堡1号构造带局部下排烃，4号与5号构造带潜山上覆烃源岩下排烃作用不太明显。以上排烃分析与目前潜山发现油气的分布相吻合，反映烃源岩对潜山油气有很强的控制作用。南堡凹陷潜山源控藏作用受控于烃源岩与潜山的接触关系、烃源灶位置、烃源岩成熟度、烃源岩中火山岩隔层与断层的发育等多种因素。综合排烃识别结果、源控藏分析等，预测潜山勘探有利区为南堡2-3号构造带，其次为南堡1号构造带。声波测井在排烃中的应用对于潜山油气勘探具有重要意义。

关键词: 声波测井, 排烃, 潜山, 源控藏

Abstract:

Industrial petroleum was discovered from Palaeozoic deep horizons in the Nanpu Depression, Bohai Bay Basin, which suggests significant deep petroleum potential in the area. One of the issues in exploration is forecasting favorable place for prospecting in the area. Hydrocarbons expulsion downward from the source rocks immediately overlapped buried hill should be useful in this aspect. Acoustic logging combined with geochemical approaches was utilized in this study to identify hydrocarbons expulsion and evaluate hydrocarbon potential. After a detailed correlative acoustic logging and geochemical study, a combined hydrocarbons expulsion model of the source rocks in the Nanpu Depression was established, which was used to investigate hydrocarbons expulsion of the source rocks from 33 wells in the Nanpu Depression. The results suggest that the average depths of the source rocks with the hydrocarbons expelled downward into the burial hill in the No.2 and 3Tectonic Belts are about 248 m and 358 m, respectively, and only 35 m for the No.1 Tectonic Belt. No obvious hydrocarbons expulsion into burial hill was observed in the No.4 and 5 Tectonic Belts in the depression. This result coincides with the hydrocarbons discovered up to now in the burial hills. We suggest that these factors including contact style between the source rock and the burial hill, the position of the hydrocarbon kitchen, the thermal maturity of the source rocks, the volcanic rock acting as barrier bed and faults developed, have a controlling of the amounts and characteristics of the hydrocarbons expelled by the source rocks and charged into the burial hill in the Nanpu Depression. A comprehensive study of hydrocarbons expulsion, migration and accumulation indicate that the No.2 and 3 Tectonic Belts and next the No.1 Tectonic Belt are prospective areas with burial hill hydrocarbons reservoir developed. This study also indicated that acoustic logging could be an important tool identifying hydrocarbons expulsion and would be useful in petroleum exploration.

Key words: acoustic logging, hydrocarbons expulsion, buried hill, source rock-controlling hydrocarbon

中图分类号:

TE122.1

董月霞，李素梅，陈安定，王政军，张鹏，陈君. 测井—地化结合法探讨南堡凹陷潜山源控藏作用[J]. 现代地质, 2015, 29(4): 922-929.

DONG Yue-xia，LI Su-mei，CHEN An-ding，WANG Zheng-jun，ZHANG Peng，CHEN Jun. Controlling of Hydrocarbons Expulsion of Source Rock on Buried Hill Hydrocarbon Reservoir in Nanpu Depression by Acoustic Logging Methodology[J]. Geoscience, 2015, 29(4): 922-929.

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