通过地质建模剖析古潜山碳酸盐岩裂缝性储层地质特征

doi:10.13809/j.cnki.cn32-1825/te.2021.05.004

摘要/Abstract

摘要：

针对渤南海域Q油田地质模式认识不清、储层发育非均质性强、生产动态规律复杂等诸多难题,综合运用录井、钻井取心、岩石薄片、测井及三维地震资料总结古潜山碳酸盐岩沉积特征和裂缝发育规律。研究表明：岩溶斜坡和岩溶高地是白云岩主要发育区,岩溶作用强烈,溶蚀孔隙发育,容易产生裂缝形成优质储层,岩溶洼地主要发育灰质泥岩或泥质灰岩,储层物性较差;上油组储层厚度大、裂缝发育,主要为裂缝性储层,下油组主要发育溶蚀性储层。在此认识基础上总结地质模式,动静结合建立双孔介质储层地质模型。该项成果在本油田实际开发中得到较好应用,对类似裂缝性油藏的精细高效开发具有一定指导意义。

关键词: 裂缝性油藏, 双孔介质, 属性模型, 地质建模, 古潜山, 渤海湾盆地

Abstract:

In order to solve the problems in Oilfield Q, such as unclear understanding of geological model, strong heterogeneity of reservoir development and complexity of production performance rule, the sedimentary characteristics and the fracture development of carbonate rocks in buried-hills have been summarized by comprehensive application of logging, drilling and coring, rock section, logging and 3D seismic data. The results show that, the Karst slope and highland are the main development areas of dolomite, where the karstification is intense and the dissolution pores are developed. The fractures are easy to appear so as to form the high-quality reservoirs. Karst depression mainly develops calcareous mudstone or argillaceous limestone, with poor reservoir physical property. The upper oil formation is mainly fractured reservoir with large thickness and developed fractures, while the lower oil formation mainly develops dissolution reservoir. On the basis of this achievements, the geological mode is summarized and the geological model of a dual porosity medium reservoir is established by combination of dynamic and static methods. This achievement has been well applied in the actual development of the oilfield, and has a certain guiding significance for the fine and efficient development of similar fractured reservoirs.

Key words: Fractured reservoirs, dual porosity medium, attribute model, geological modeling, buried-hill, Bohai Bay basin

中图分类号:

TE122

张立安,王少鹏,张岚等. 通过地质建模剖析古潜山碳酸盐岩裂缝性储层地质特征[J]. 油气藏评价与开发, 2021, 11(5): 688-693.

Li’an ZHANG,Shaopeng WANG,Lan ZHANG, et al. Analysis on geological characteristics of fractured carbonate reservoir in buried-hill by geological modeling[J]. Petroleum Reservoir Evaluation and Development, 2021, 11(5): 688-693.

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参考文献 16

[1]	柏松章, 唐飞. 裂缝性潜山基岩油藏开发模式[M]. 北京: 石油工业出版社, 1997.
	BAI Songzhang, TANG Fei. The development models of buried hill fractured basement reservoirs[M]. Beijing: Petroleum Industry Press, 1997.
[2]	童凯军, 赵春明, 吕坐彬, 等. 渤海变质岩潜山油藏储集层综合评价与裂缝表征[J]. 石油勘探与开发, 2012, 39(1):56-63.
	TONG Kaijun, ZHAO Chunming, LYU Zuobin, et al. Reservoir evaluation and fracture characterization of the metamorphic buried hill reservoir in Bohai Sea[J]. Petroleum Exploration and Development, 2012, 39(1):56-63.
[3]	强子同. 碳酸盐岩储层地质学[M]. 东营: 中国石油大学出版社, 1998.
	QIANG Zitong. Carbonate reservoir geology[M]. Dongying: China University of Petroleum Press, 1998.
[4]	房娜, 姜光宏, 李云鹏, 等. 潜山裂缝油藏开发特征及挖潜方向[J]. 特种油气藏, 2017, 24(3):90-94.
	FANG Na, JIANG Guanghong, LI Yunpeng, et al. Development characteristics and potential tapping direction of buried-hill fractured oil reservoirs[J]. Special Oil & Gas Reservoirs, 2017, 24(3):90-94.
[5]	赵宗举, 王招明, 吴兴宁, 等. 塔里木盆地塔中地区奥陶系储层成因类型及分布预测[J]. 石油实验地质, 2007, 29(1):40-46.
	ZHAO Zongju, WANG Zhaoming, WU Xingning, et al. Genetic types and distribution forecast of available carbonate reservoirs in Ordovician in the central area of Tarim Basin[J]. Petroleum Geology & Experiment, 2007, 29(1):40-46.
[6]	谭秀成, 罗冰, 李卓沛, 等. 川中地区磨溪气田嘉二段砂屑云岩储集层成因[J]. 石油勘探与开发, 2011, 38(3):268-274. doi: 10.1016/S1876-3804(11)60033-5
	TAN Xiucheng, LUO Bing, LI Zhuopei, et al. Jia-2 member doloarenite reservoir in the Moxi gas field, middle Sichuan Basin[J]. Petroleum Exploration and Development, 2011, 38(3):268-274. doi: 10.1016/S1876-3804(11)60033-5
[7]	王炜, 黄康俊, 鲍征宇, 等. 不同类型鲕粒灰岩储集层溶解动力学特征[J]. 石油勘探与开发, 2011, 38(4):495-502.
	WANG Wei, HUANG Kangjun, BAO Zhengyu, et al. Dissolution kinetics of different types of oolitic Limestones in northeastern Sichuan Basin[J]. Petroleum Exploration and Development, 2011, 38(4):495-502.
[8]	王晖, 胡光义. 渤海C油田潜山裂缝型储集层随机离散裂缝网格模型的实现与优选方法[J]. 岩性油气藏, 2012, 24(1):74-78.
	WANG Hui, HU Guangyi. Realization and optimization of discrete fracture network model of buried hill fractured reservoir in C oilfeid, Bohai Bay[J]. Lithologic Reservoirs, 2012, 24(1):74-78.
[9]	AMOUR F, MUTTI M, CHRIST N, et al. Outcrop analog for an oolitic carbonate ramp reservoir: A scale-dependent geologic modeling approach based on stratigraphic hierarchy[J]. AAPG Bulletin, 2013, 97(5):845-871. doi: 10.1306/10231212039
[10]	赵文智, 沈安江, 潘文庆, 等. 碳酸盐岩岩溶储层类型研究及对勘探的指导意义——以塔里木盆地岩溶储层为例[J]. 岩石学报, 2013, 29(9):3213-3222.
	ZHAO Wenzhi, SHEN Anjiang, PAN Wenqing, et al. A research on carbonate karst reservoirs classification and its implication on hydrocarbon exploration: Cases studies from Tarim Basin[J]. Acta Petrologica Sinica, 2013, 29(9):3213-3222.
[11]	邓运华. 渤海大中型潜山油气田形成机理与勘探实践[J]. 石油学报, 2015, 36(3):253-261.
	DENG Yunhua. Formation mechanism and exploration practice of large-medium buried-hill oil fields in Bohai Sea[J]. Acta Petrolei Sinica, 2015, 36(3):253-261.
[12]	于海波, 王德英, 牛成民, 等. 渤海海域渤南低凸起碳酸盐岩潜山储层特征及形成机制[J]. 石油实验地质, 2015, 37(2):150-156.
	YU Haibo, WANG Deying, NIU Chengmin, et al. Characteristics and formation mechanisms of buried hill carbonate reservoirs in Bonan Low Uplift, Bohai Bay[J]. Petroleum Geology & Experiment, 2015, 37(2):150-156.
[13]	索艳慧, 李三忠, 曹现志, 等. 中国东部中新生代反转构造及其记录的大洋板块俯冲过程[J]. 地学前缘, 2017, 24(4):249-267.
	SUO Yanhui, LI Sanzhong, CAO Xianzhi, et al. Mesozoic-Cenozoic inversion tectonics of East China and its implications for the subduction process of the oceanic plate[J]. Earth Science Frontiers, 2017, 24(4):249-267.
[14]	高坤顺, 吴庆勋, 彭靖淞, 等. 渤海海域前新生代基底时代归属与构造演化特征分析[J]. 中国海上油气, 2019, 31(4):19-26.
	GAO Kunshun, WU Qingxun, PENG Jingsong, et al. Chronostratigraphy of the pre-Cenozoic base and tectonic evolution characteristics in Bohai sea[J]. China Offshore Oil and Gas, 2019, 31(4):19-26.
[15]	周心怀, 项华, 于水, 等. 渤海锦州南变质岩潜山油藏储集层特征与发育控制因素[J]. 石油勘探与开发, 2005, 32(6):17-20.
	ZHOU Xinhuai, XIANG Hua, YU Shui, et al. Reservoir characteristics and development controlling factors of JZS Neo-Archean metamorphic buried hill oil pool in Bohai Sea[J]. Petroleum Exploration and Development, 2005, 32(6):17-20.
[16]	张立安, 曹龙, 崔名喆, 等. 古潜山碳酸盐岩裂缝性储层发育机制及地质建模[J]. 复杂油气藏, 2020, 13(4):39-45.
	ZHANG Li’an, CAO Long, CUI Mingzhe, et al. Development mechanism and 3D geological modeling of fractured carbonate reservoirs in buried-hill[J]. Complex Hydrocarbon Reservoirs, 2020, 13(4):39-45.

层位		代表井段（m）	厚度（m）	裂缝产状
层位		代表井段（m）	厚度（m）	延伸方向（° ）	倾角（° ）
上油组	凤山组	3 000~3 032	32	170~350	80~85
	凤山组	3 035~3 050	15	120	85
	固山组	3 110~3 120	10	150	20~40
	张夏组	3 163~3 173	10	55	35~50
	毛庄组	3 184~3 193	9	260	70~80
	府君山组	3 270~3 297	27	50	60~80
下油组	下马家沟组	3 040~3 070	30	170~350	70~80
		3 040~3 070	30	80~260	60~70
		3 110~3 140	30	160~340	60~70
		3 110~3 140	30	70~250	60~70
	亮甲山组	3 250~3 310	60	260	50~60
	亮甲山组	3 340~3 360	20	170	60~70