碳酸盐岩缝洞储集体分尺度量化表征

doi:10.7657/XJPG20210216

摘要/Abstract

摘要：

塔里木盆地北部奥陶系碳酸盐岩缝洞储集体在地震剖面上表现为“串珠状”强反射或杂乱反射。通过设计不同缝洞模型进行正演模拟,将地震正演响应特征与缝洞模型中的缝洞高度、外部形态等特征进行对比分析,结合地震分辨率理论公式计算结果,对缝洞分尺度量化表征：高度大于50 m的缝洞,可进行外部形态的刻画,开展定量刻画和体积计算,可靠程度较高;高度为10~50 m的缝洞,可进行缝洞体积、中心点以及洞顶的识别,能进行半定量识别和较准确的体积计算,可靠程度一般;高度小于10 m的缝洞,仅能在平面和剖面上定性预测其分布范围,体积计算的可靠程度低。通过把缝洞划分成不同尺度,并利用不同地震属性分别进行识别刻画和量化计算,有效减少了缝洞量化描述的多解性,为目标评价和井位优选提供了依据。

关键词: 塔里木盆地, 奥陶系, 碳酸盐岩, 缝洞储集体, 地震响应, 正演模拟, 量化表征

Abstract:

The Ordovician carbonate reservoirs in the north of Tarim basin are fractured and vuggy. On seismic sections, the seismic responses of the fractured-vuggy reservoirs are mostly “bead-like” strong reflections and chaotic reflections. We designed different fracture-vug models, compared the seismic response characteristics with the heights and external shapes of the fractures and vugs in the fracture-vug models, and quantitatively characterized the fractures and vugs on various scales based on the results calculated from the seismic resolution theory formula. The results are that: the external shape of the fractures and vugs more than 50 m high can be quantitatively described, and their volumes can be calculated with high reliability; the volume, center points and roofs of fractures and vugs of 10-50 m high can be identified, semi-quantitative identification and accurate calculation of their volumes can be carried out with average reliability; and the fractures and vugs less than 10 m high can only be qualitatively predicted on their lateral and vertical distribution, and the reliability of volume calculation is low. After characterization and quantitative calculation using seismic attributes on various scales, the multiplicity of quantitative characterization of fractures and vugs is effectively reduced. The results provide basic data for target evaluation and well location optimization.

Key words: Tarim basin, Ordovician, carbonate rock, fractured-vuggy reservoir, seismic response, forward modeling, quantitative characterization

中图分类号:

TE112.221

邓光校, 胡文革, 王震. 碳酸盐岩缝洞储集体分尺度量化表征[J]. 新疆石油地质, 2021, 42(2): 232-237.

DENG Guangxiao, HU Wenge, WANG Zhen. Quantitative Characterization of Fractured-Vuggy Carbonate Reservoirs[J]. Xinjiang Petroleum Geology, 2021, 42(2): 232-237.

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参考文献 21

[1]	漆立新. 塔里木盆地顺托果勒隆起奥陶系碳酸盐岩超深层油气突破及其意义[J]. 中国石油勘探, 2016,21(3):38-51.
	QI Lixin. Oil and gas breakthrough in ultra-deep Ordovician carbonate formations in Shuntuoguole uplift,Tarim basin[J]. China Petroleum Exploration, 2016,21(3):38-51.
[2]	漆立新, 云露. 塔里木台盆区碳酸盐岩成藏模式与勘探实践[J]. 石油实验地质, 2020,42(5):867-876.
	QI Lixin, YUN Lu. Carbonate reservoir forming model and exploration in Tarim basin[J]. Petroleum Geology & Experiment, 2020,42(5):867-876.
[3]	程传捷, 于炳松, 武重阳, 等. 塔里木盆地顺北地区奥陶系一间房组碳酸盐岩成岩相研究[J]. 石油实验地质, 2020,42(1):42-52.
	CHENG Chuanjie, YU Bingsong, WU Chongyang, et al. Diagenetic facies of carbonate rocks in Yijianfang formation,Shunbei area,Tarim basin[J]. Petroleum Geology & Experiment, 2020,42(1):42-52.
[4]	韩革华, 漆立新, 李宗杰, 等. 塔河油田奥陶系碳酸盐岩缝洞型储层预测技术[J]. 石油与天然气地质, 2006,27(6):860-870. doi: 10.11743/ogg20060617
	HAN Gehua, QI Lixin, LI Zongjie, et al. Prediction of the Ordovician fractured-vuggy carbonate reservoirs in Tahe oilfield[J]. Oil & Gas Geology, 2006,27(6):860-870.
[5]	温志新, 王红漫, 漆立新, 等. 塔河油田奥陶系缝洞型碳酸盐岩储层预测研究[J]. 地学前缘, 2008,15(1):94-100.
	WEN Zhixin, WANG Hongman, QI Lixin, et al. Research on the prediction of Ordovician carbonatite reservoir of fissure-cave type in the Tahe oilfield[J]. Earth Science Frontiers, 2008,15(1):94-100.
[6]	胡鹏飞. 塔河油田碳酸盐岩缝洞型储集体成像技术研究[J]. 石油地球物理勘探, 2009,44(2):152-157.
	HU Pengfei. Study on imaging technique of carbonate fracture-cave type’s reservoir in Tahe oilfield[J]. Oil Geophysical Prospecting, 2009,44(2):152-157.
[7]	张远银, 孙赞东, 杨海军, 等. 基于纯纵波地震资料的碳酸盐岩储集层识别[J]. 新疆石油地质, 2020,41(5):605-611.
	ZHANG Yuanyin, SUN Zandong, YANG Haijun, et al. Carbonate reservoir identification based on pure P-wave data[J]. Xinjiang Petroleum Geology, 2020,41(5):605-611.
[8]	张三, 金强, 赵深圳, 等. 塔河油田海西运动早期奥陶系岩溶地貌[J]. 新疆石油地质, 2020,41(5):527-534.
	ZHANG San, JIN Qiang, ZHAO Shenzhen, et al. Ordovician karst paleogeomorphology during Early Hercynian movement in Tahe oilfield[J]. Xinjiang Petroleum Geology, 2020,41(5):527-534.
[9]	杨海军, 李世银, 邓兴梁, 等. 深层缝洞型碳酸盐岩凝析气藏勘探开发关键技术:以塔里木盆地塔中Ⅰ号气田为例[J]. 天然气工业, 2020,40(2):83-89.
	YANG Haijun, LI Shiyin, DENG Xingliang, et al. Key technologies for the exploration and development of deep fractured-vuggy carbonate condensate gas reservoirs:a case study of the Tazhong Ⅰ gas field in the Tarim basin[J]. Natural Gas Industry, 2020,40(2):83-89.
[10]	刘群, 王世星, 顾汉民, 等. 碳酸盐岩缝洞体体积定量计算及其影响因素分析探索:以塔河油田主体区为例[J]. 石油物探, 2013,52(2):217-222.
	LIU Qun, WANG Shixing, GU Hanmin, et al. Carbonate fracture-cave volume quantitative calculation and its influencing factors analysis:case study of the main area in Tahe oilfield[J]. Geophysical Prospecting for Petroleum, 2013,52(2):217-222.
[11]	刘学利, 鲁新便. 塔河油田缝洞储集体储集空间计算方法[J]. 新疆石油地质, 2010,31(6):593-595.
	LIU Xueli, LU Xinbian. Volume calculation method for fracture-cavity reservoir body in Tahe oilfield,Tarim basin[J]. Xinjiang Petroleum Geology, 2010,31(6):593-595.
[12]	赵裕辉, 胡建中, 鲁新便, 等. 碳酸盐岩缝洞型储集体识别与体积估算[J]. 石油地球物理勘探, 2010,45(5):720-724.
	ZHAO Yuhui, HU Jianzhong, LU Xinbian, et al. Identification of carbonate fractured-vuggy reservoir and volume estimation[J]. Oil Geophysical Prospecting, 2010,45(5):720-724.
[13]	胡中平. 溶洞地震波“串珠状”形成机理及识别方法[J]. 中国西部油气地质, 2006,2(4):423-426.
	HU Zhongping. Mechanism and destinction method for the seismic “string beads” characteristic[J]. West China Petroleum Geosciences, 2006,2(4):423-426.
[14]	张诗青, 樊政军, 柳建华, 等. 碳酸盐岩储集层定量评价:以塔河油田为例[J]. 新疆石油地质, 2003,24(2):146-148.
	ZHANG Shiqing, FAN Zhengjun, LIU Jianhua, et al. A quantitative evaluation of carbonate reservoir:an example of Tabe oilfield[J]. Xinjiang Petroleum Geology, 2003,24(2):146-148.
[15]	王震, 文欢, 胡文革. 塔河油田碳酸盐岩缝洞空间位置预测方法研究[J]. 工程地球物理学报, 2019,16(4):433-438.
	WANG Zhen, WEN Huan, HU Wenge. Study on spatial location prediction method of fractured-vuggy carbonate reservoir in Tahe oilfield[J]. Chinese Journal of Engineering Geophysics, 2019,16(4):433-438.
[16]	孙东, 潘建国, 潘文庆, 等. 塔中地区碳酸盐岩溶洞储层体积定量化正演模拟[J]. 石油与天然气地质, 2010,31(6):871-878. doi: 10.11743/ogg20100621
	SUN Dong, PAN Jianguo, PAN Wenqing, et al. Quantitative forward modelling of cavity volume in carbonate reservoirs in Tazhong area[J]. Oil & Gas Geology, 2010,31(6):871-878.
[17]	王鹏, 刘兴晓. 轮南古潜山岩溶缝洞系统定量描述[J]. 新疆石油地质, 2003,24(6):546-548.
	WANG Peng, LIU Xingxiao. Quantitative description of carbonate reservoir in Lunnan buried hill,Tarim basin[J]. Xinjiang Petroleum Geology, 2003,24(6):546-548.
[18]	王俊杰, 胡勇, 刘义成, 等. 碳酸盐岩储层多尺度孔洞缝的识别与表征:以川西北双鱼石构造中二叠统栖霞组白云岩储层为例[J]. 天然气工业, 2020,40(3):48-57.
	WANG Junjie, HU Yong, LIU Yicheng, et al. Identification and characterization of multi-scale pores,vugs and fractures in carbonate reservoirs:a case study of the Middle Permian Qixia dolomite reservoirs in the Shuangyushi structure of the northwestern Sichuan basin[J]. Natural Gas Industry, 2020,40(3):48-57.
[19]	徐明华, 付建元, 杨迅, 等. 四川盆地西北部超深层碳酸盐岩孔缝带地震检测[J]. 天然气工业, 2019,39(11):18-24.
	XU Minghua, FU Jianyuan, YANG Xun, et al. Seismic detection of the pore and fracture zones in ultradeep carbonate reservoirs in the northwestern Sichuan basin[J]. Natural Gas Industry, 2019,39(11):18-24.
[20]	狄让帮, 熊金良, 岳英, 等. 面元大小对地震成像分辨率的影响分析[J]. 石油地球物理勘探, 2006,41(4):363-368.
	DI Bangrang, XIONG Jinliang, YUE Ying, et al. Analysis on influence of bin size on resolution of seismic imaging:study of acquisition parameters based on seismic physical modeling[J]. Oil Geophysical Prospecting, 2006,41(4):363-368.
[21]	刘群, 李宗杰, 禹金营, 等. 高精度三维地震技术应用效果:以塔河油田S48井区为例[J]. 石油物探, 2010,49(6):573-583.
	LIU Qun, LI Zongjie, YU Jinying, et al. Application analysis on high-precision 3D seismic technique:case study on S48 well area in Tahe oilfield[J]. Geophysical Prospecting for Petroleum, 2010,49(6):573-583.