南堡凹陷斜坡带下古生界潜山储层特征与发育模式

肖述光; 李慧勇; 黄志; 李飞; 刘凯

doi:10.3799/dqkx.2026.078

南堡凹陷斜坡带下古生界潜山储层特征与发育模式

doi: 10.3799/dqkx.2026.078

肖述光^{1, 2, 3,},
李慧勇¹,
黄志¹,
李飞¹,
刘凯¹

1.
中海石油(中国)有限公司天津分公司, 天津 300459
2.
成都理工大学自然资源部深时地理环境重建与应用重点实验室, 四川成都 610059
3.
中国地质大学(北京)能源学院, 北京 100083

基金项目:

中海石油（中国）有限公司“七年行动计划”重大科技专项课题“渤海油田上产4 000万吨新领域勘探关键技术 CNOOC-KJ135ZDXM 36TJ08TJ

自然资源部深时地理环境重建与应用重点实验室开放基金资助项目 DGERA20241003

详细信息

作者简介:
肖述光（1986-），男，硕士，高级工程师，主要从事海上油气勘探方面的研究工作. E-mail：x200504020104@126.com

中图分类号: P736
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出版历程
- 收稿日期: 2025-08-22
- 刊出日期: 2026-05-25

Reservoir Characteristics and Development Model of Lower Paleozoic Carbonate Buried Hill in Slope Zone of Nanpu Sag

Xiao Shuguang^{1, 2, 3
,},
Li Huiyong¹,
Huang Zhi¹,
Li Fei¹,
Liu Kai¹

1.
Tianjin Branch of CNOOC (China) Limited, Tianjin 300459, China
2.
Key Laboratory of Deep-Time Geography and Environment Reconstruction and Applications of Ministry of Natural Resources, Chengdu University of Technology, Chengdu 610059, China
3.
College of Energy, China University of Geosciences (Beijing), Beijing 100083, China

摘要

摘要: 下古生界潜山储层非均质性强、发育机制不清严重制约其勘探成效.运用岩心、成像测井及分析化验等资料，开展了南堡凹陷斜坡带下古生界碳酸盐岩储层特征、主控因素和分布规律研究.结果表明，研究区发育“表生岩溶”和“缝溶体”两类储层.“表生岩溶”储层储集空间以小型溶蚀孔洞为主，集中分布于构造高部位和潜山顶部100 m内；“缝溶体”储层主要储集空间为裂缝，展布范围广，且储层段一般超过150 m.岩石类型是储层发育物质基础，灰岩和云质灰岩类为岩溶成储的优势岩性；裂缝是储层发育核心要素，缝网系统为大气水的溶蚀提供通道；古地貌是储层发育关键条件，上斜坡是岩溶作用有利位置.由此，建立了“岩性‒构造‒古地貌”三元耦合储层发育机制.
- 下古生界 /
- 碳酸盐岩 /
- 储层 /
- 构造裂缝 /
- 岩溶作用 /
- 储层模式 /
- 油气地质
Abstract: The strong heterogeneity and unclear development mechanism of the Lower Paleozoic buried hill reservoir seriously restrict its exploration effect. In this paper, the characteristics, main controlling factors and distribution rules of the Lower Paleozoic carbonate reservoirs in the slope zone of Nanpu sag were studied by using core, imaging logging and analytical test data. The results show that the study area develops two types of reservoirs: "supergene karst" and "fracture karst". The reservoir space of "supergene karst" reservoir is dominated by small dissolution pores, which are concentrated in the high part of the structure and the top of the buried hill within 100 m. The main reservoir space of the 'fracture-dissolved body' reservoir is fractures, with a wide range of distribution, and the reservoir section is generally more than 150 m. Rock type is the material basis of reservoir development, and limestone and dolomitic limestone are the dominant lithology of karst reservoir. Fracture is the core element of reservoir development, and the fracture network system provides a channel for the dissolution of atmospheric water. Paleogeomorphology is the key condition for reservoir development, and the upper slope is a favorable location for karstification. Therefore, the development mechanism of "lithology-structure-paleogeomorphology" three-element coupling reservoir is established.
- Lower Paleozoic /
- carbonate /
- reservoir /
- structural fracture /
- karstification /
- reservoir model /
- petroleum geology

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图 1 研究区地质背景

a.渤海湾盆地简图；b.南堡凹陷斜坡潜山地层与断裂体系叠合图；c.下古生界综合柱状图

Fig. 1. Geological background of the research area

下载: 全尺寸图片幻灯片

图 2 南堡凹陷斜坡带下古生生界碳酸盐岩储层岩石学特征

a.CFD2-B-9，3 566.74 m，粗晶云质灰岩；b.CFD2-B-3井，4 088.00 m，白云质亮晶砂屑灰岩；c.CFD2-B-3，3 751.00 m，泥晶灰岩；d.CFD2-B-3，3 933.50 m，亮晶鲕粒灰岩；e.CFD2-B-3，3 817.00 m，亮晶砂屑灰岩；f.CFD2-B-3，3 629.00 m，中‒细晶白云岩；g.CFD2-A-2，3 709.30 m，粉‒细晶白云岩，白云石具雾心亮边结构；h.CFD2-C-4，3 762.50~3 765.35 m，泥晶白云岩；i.CFD2-B-9，3 567.40~3 567.90 m，岩溶角砾灰岩

Fig. 2. Petrological characteristics of Lower Paleozoic carbonate reservoir in slope zone of Nanpu sag

下载: 全尺寸图片幻灯片

图 3 南堡斜坡带下古生生界碳酸盐岩潜山储层发育特征

Fig. 3. Development characteristics of Lower Paleozoic carbonate buried hill reservoir in Nanpu slope zone

下载: 全尺寸图片幻灯片

图 4 实验前后样品扫描电镜对比

Fig. 4. Scanning electron microscope comparison of samples before and after the experiment

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图 5 南堡凹陷斜坡带中新生代构造演化模式

Fig. 5. Meso-Cenozoic tectonic evolution model of slope zone in Nanpu sag

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图 6 南堡凹陷斜坡带关键构造期应力场及潜山裂缝发育特征

Fig. 6. Characteristics of stress field and buried hill fracture development in key tectonic period of slope zone in Nanpu sag

下载: 全尺寸图片幻灯片

图 7 基于岩心、成像测井及阴极发光的潜山裂缝期次识别

Fig. 7. Identification of buried hill fracture stages based on core, imaging logging and cathodoluminescence

下载: 全尺寸图片幻灯片

图 8 构造‒岩溶多阶段发育演化模式

Fig. 8. Structure-karst multi-stage development and evolution model diagram

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图 9 南堡凹陷斜坡带下古生界储层发育模式(据李慧勇等，2021修改)

Fig. 9. Development model of Lower Paleozoic reservoir in slope zone of Nanpu sag (from Li et al., 2021)

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表 1 实验样品X-衍射成分数据及溶蚀度排序

Table 1. X-ray diffraction composition data and dissolution sort of experimental samples

岩类	样品编号	层位	深度（m）	方解石含量（%）	白云石含量（%）	Ca+浓度	溶蚀度排序
灰岩	9-30-B	张夏组	3 544.0	95.45	2.28	5.94	3
	3-30-B	下马家沟组	3 421.5	85.21	12.35	6.73	1
	1-30-B	上马家沟组	3 217.5	54.47	41.71	6.69	2
	5-30-B	亮甲山组	3 220.8	54.43	43.69	5.69	4
白云岩	10-30-B	徐庄组	3 188.0	0.31	67.73	3.49	1
	6-30-B	冶里组	3 209.6	0.21	98.39	2.85	2
	8-30-B	长山组	3 365.5	-	99.18	2.66	3

下载: 导出CSV

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