HIGH DENSITY WIDE LINE 2D SEISMIC ACQUISITION PRACTICE IN S281 BLOCK OF DAMINTUN SAG, LIAOHE DEPRESSION
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摘要:
辽河拗陷大民屯凹陷S281块X井钻井显示该块油气潜力较大, 但以往地震资料采集时间早, 覆盖次数较低, 成像精度差, 导致主体断裂位置和微断裂体系难以落实, 制约区块成藏解释和后续开发. 为此, 开展了高密度宽线二维地震资料采集, 并基于采集数据开展了观测系统退化分析. 研究结果表明, 新采集的高密度宽线二维地震成像剖面较以往三维地震成果剖面断点更清晰, 断裂系统刻画更清楚, 构造形态更自然, 层间信息更丰富, 信噪比更高, 落实了的西部斜坡带的构造特征; 超高密度、极小面元对高陡构造和断裂刻画更清楚, 是提高复杂地质目标成像的有效方法; 退化处理说明S281块的地震资料采集观测系统的面元边长不能大于12.5 m, 最大炮检距不能小于3 500 m, 覆盖次数不能小于1 200次. 本研究可为大民屯凹陷西部斜坡带的下步地震资料采集和勘探开发提供借鉴.
Abstract:The drilling of well X in S281 block of Damintun sag, Liaohe depression, shows a great oil and gas potential. However, it is difficult to determine the main fault position and microfracture system due to the old acquisition time of previous seismic data, low coverage times and poor imaging precision, which restricts the interpretation of block accumulation and subsequent development. Therefore, the study carries out the high density wide line 2D seismic data acquisition and degradation analysis of the observation system based on the data. The results show that, compared with the previous 3D seismic imaging section, the newly acquired high density wide line 2D seismic imaging section has clearer breakpoints, clearer delineation of fault system, more natural structural configuration, richer interlayer information, and higher signal-to-noise ratio, which accurately realizes the structural characteristics of western slope zone. The ultrahigh density and minimum bin can depict high-steep structures and faults more clearly, which is an effective method to improve the imaging of complex geological targets. The degradation processing indicates that the bin side length of seismic data acquisition and observation system of S281 block should not be greater than 12.5 m, the maximum offset should not be less than 3 500 m, and the coverage times should not be less than 1 200 times. The study can provide reference for the next seismic data acquisition and exploration in the western slope zone of Damintun sag.
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表 1 S281块以往三维采集参数表
Table 1. Previous 3D acquisition parameters of S281 block
参数 数值 观测系统 12L24S192T6R斜交 面元/m2 25×25 覆盖次数 12×6=72 接收道数 2304 接收线距/m 200 道间距/m 50 炮线距/m 400 炮点距/m 50/50 最大炮检距/m 5060.26 纵横比 0.35 炮道密度/（万道/km2） 11.52 激发方式 SN4-10，2串串联 接收方式 5井2 kg 
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表 2 S281块高密度宽线二维采集参数表
Table 2. High-density wide line 2D acquisition parameters of S281 block
观测系统 道距/m 炮点距/m 覆盖次数（满覆盖） 接收道数 接收线距/m 接收方式 激发方式 3L×2S 12.5 12.5 1000~4056 全排列接收 25 GT-DS-5H3X1超高灵敏度检波器，单点接收 EV56可控震源2~130 Hz，1台1次
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[1] 赵邦六, 董世泰, 曾忠, 等. 中国石油"十三五"物探技术进展及"十四五"发展方向思考[J]. 中国石油勘探, 2021, 26(1): 108-120.
Zhao B L, Dong S T, Zeng Z, et al. Geophysical prospecting technology progress of PetroChina in the 13th Five-Year Plan period and development direction consideration in the 14th Five-Year Plan period[J]. China Petroleum Exploration, 2021, 26(1): 108-120.
[2] 张丽艳, 李昂, 黄一鸣, 等. 宽方位宽频带保幅处理技术在页岩油勘探中的应用[J]. 地质与资源, 2021, 30(3): 385-394, 365. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract10308.shtml
Zhang L Y, Li A, Huang Y M, et al. Application of wide-azimuth and broadband amplitude preserving processing technique in shale oil exploration[J]. Geology and Resources, 2021, 30(3): 385-394, 365. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract10308.shtml
[3] 袁永真, 方慧, 裴发根, 等. 松辽盆地上古生界深层系展布特征——来自综合地球物理资料的依据[J]. 地质与资源, 2022, 31(3): 395-403. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract10401.shtml
Yuan Y Z, Fang H, Pei F G, et al. Distribution characteristics of Upper Paleozoic deep strata series in Songliao Basin: Evidence from comprehensive geophysical data[J]. Geology and Resources, 2022, 31 (3): 395-403. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract10401.shtml
[4] 赵邦六, 董世泰, 曾忠, 等. 单点地震采集优势与应用[J]. 中国石油勘探, 2021, 26(2): 55-68. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY202102006.htm
Zhao B L, Dong S T, Zeng Z, et al. Advantages and application of single-point receiving in seismic acquisition[J]. China Petroleum Exploration, 2021, 26(2): 55-68. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY202102006.htm
[5] 陈学强, 王彦峰, 吕景峰, 等. 库车坳陷复杂山地地震采集适用技术及应用效果[J]. 石油地球物理勘探, 2022, 57(4): 806-814. https://www.cnki.com.cn/Article/CJFDTOTAL-SYDQ202204007.htm
Chen X Q, Wang Y F, Lyu J F, et al. Seismic exploration technologies and applications in complex mountain areas of Kuqa depression[J]. Oil Geophysical Prospecting, 2022, 57(4): 806-814. https://www.cnki.com.cn/Article/CJFDTOTAL-SYDQ202204007.htm
[6] 丁秋红, 李晓海, 李文博, 等. 辽宁北部秀水盆地义县组地层划分的地球物理响应特征[J]. 地质与资源, 2020, 29(1): 44-52, 6. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract10148.shtml
Ding Q H, Li X H, Li W B, et al. Geophysical response of the stratigraphic division of Yixian Formation in Xiushui Basin, northern Liaoning Province[J]. Geology and Resources, 2020, 29(1): 44-52, 6. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract10148.shtml
[7] 王兴宇, 刘艳丽, 郭盈宇. 复杂区宽线地震资料处理技术及应用[J]. 地质与勘探, 2020, 56(4): 766-773. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKT202004009.htm
Wang X Y, Liu Y L, Guo Y Y. Application of wide-line seismic data processing technique in complex areas[J]. Geology and Exploration, 2020, 56(4): 766-773. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKT202004009.htm
[8] 孙月成, 李永飞, 孙守亮, 等. 火成岩覆盖区地震有效成像技术探讨及其在辽西金羊盆地油气调查中的应用[J]. 中国地质, 2021, 48 (5): 1469-1484. https://www.cnki.com.cn/Article/CJFDTOTAL-DIZI202105014.htm
Sun Y C, Li Y F, Sun S L, et al. Effective seismic imaging technology in igneous rock coverage area and its application to oil and gas investigation in Jinyang Basin of western Liaoning[J]. Geology in China, 2021, 48(5): 1469-1484. https://www.cnki.com.cn/Article/CJFDTOTAL-DIZI202105014.htm
[9] 陈耀, 熊强青. 二维地震勘探在页岩气勘查空白区的应用效果——以下扬子巢湖地区五峰组-高家边组下段为例[J]. 科学技术与工程, 2020, 20(17): 6822-6829. https://www.cnki.com.cn/Article/CJFDTOTAL-KXJS202017018.htm
Chen Y, Xiong Q Q. Application effect of 2D seismic exploration in shale gas exploration blank area: A case study of the Wufeng Formation-Gaojiabian Formation Lower-Member in Chaohu area[J]. Science Technology and Engineering, 2020, 20(17): 6822-6829. https://www.cnki.com.cn/Article/CJFDTOTAL-KXJS202017018.htm
[10] 王建民, 杨宝俊, 李占林, 等. 松辽盆地东缘域地壳结构及其地质意义: 深反射地震[J]. 地球物理学报, 2020, 63(9): 3478-3490. https://www.cnki.com.cn/Article/CJFDTOTAL-DQWX202009021.htm
Wang J M, Yang B J, Li Z L, et al. Crustal structure between the eastern margin of the Songliao Basin and its geological implication: Deep seismic reflection[J]. Chinese Journal of Geophysics, 2020, 63 (9): 3478-3490. https://www.cnki.com.cn/Article/CJFDTOTAL-DQWX202009021.htm
[11] 刘建勋, 周建勇, 徐明才, 等. 地震勘查技术在喀拉通克矿区的应用[J]. 物探与化探, 2017, 41(3): 437-444. https://www.cnki.com.cn/Article/CJFDTOTAL-WTYH201703007.htm
Liu J X, Zhou J Y, Xu M C, et al. The application of seismic exploration technology in the Kalatongke orefield[J]. Geophysical and Geochemical Exploration, 2017, 41(3): 437-444. https://www.cnki.com.cn/Article/CJFDTOTAL-WTYH201703007.htm
[12] 白旭明, 熊峰, 崔宏良, 等. 高陡构造区二维地震测线观测方位探讨[J]. 中国石油勘探, 2020, 25(6): 112-117. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY202006012.htm
Bai X M, Xiong F, Cui H L, et al. Discussion on observation orientation of 2D seismic line in high-steep structural area[J]. China Petroleum Exploration, 2020, 25(6): 112-117. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY202006012.htm
[13] 何宝庆, 谢小碧. 宽线地震数据采集和处理的数值模拟[J]. 石油地球物理勘探, 2019, 54(3): 500-511. https://www.cnki.com.cn/Article/CJFDTOTAL-SYDQ201903002.htm
He B Q, Xie X B. A numerical investigation on wide-line seismic data acquisition and processing[J]. Oil Geophysical Prospecting, 2019, 54(3): 500-511. https://www.cnki.com.cn/Article/CJFDTOTAL-SYDQ201903002.htm
[14] 李晓光, 刘兴周, 李金鹏, 等. 辽河坳陷大民屯凹陷沙四段湖相页岩油综合评价及勘探实践[J]. 中国石油勘探, 2019, 24(5): 636-648. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY201905010.htm
Li X G, Liu X Z, Li J P, et al. Comprehensive evaluation and exploration practice of Sha 4 lacustrine shale oil in Damintun Sag, Liaohe Depression[J]. China Petroleum Exploration, 2019, 24(5): 636-648. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY201905010.htm
[15] 周旭红. 大民屯凹陷西斜坡砂砾岩体储层预测技术[J]. 中国石油勘探, 2010, 15(5): 54-57, 86. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY201005012.htm
Zhou X H. Reservoir prediction technology of sandstone reservoir in western slope of Damintun Sag[J]. China Petroleum Exploration, 2010, 15(5): 54-57, 86. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY201005012.htm
[16] 崔庆辉, 尚新民, 滕厚华, 等. 高密度三维地震观测系统设计技术与应用[J]. 石油物探, 2020, 59(1): 12-22, 59. https://www.cnki.com.cn/Article/CJFDTOTAL-SYWT202001003.htm
Cui Q H, Shang X M, Teng H H, et al. Design of a high-density three-dimensional seismic geometry and its application[J]. Geophysical Prospecting for Petroleum, 2020, 59(1): 12-22, 59. https://www.cnki.com.cn/Article/CJFDTOTAL-SYWT202001003.htm
[17] 曲寿利. 面向深层复杂地质体油气勘探的地震一体化技术[J]. 石油物探, 2021, 60(6): 879-892. https://www.cnki.com.cn/Article/CJFDTOTAL-SYWT202106002.htm
Qu S L. An integrated seismic technology for oil and gas exploration in a deep complex geological body[J]. Geophysical Prospecting for Petroleum, 2021, 60(6): 879-892. https://www.cnki.com.cn/Article/CJFDTOTAL-SYWT202106002.htm
[18] 肖关华, 张伟, 陈恒春, 等. 浅层地震技术在济南地下空间探测中的应用[J]. 物探与化探, 2022, 46(1): 96-103. https://www.cnki.com.cn/Article/CJFDTOTAL-WTYH202201010.htm
Xiao G H, Zhang W, Chen H C, et al. Application of shallow seismic reflection surveys in the exploration of urban underground space in Jinan[J]. Geophysical and Geochemical Exploration, 2022, 46(1): 96-103. https://www.cnki.com.cn/Article/CJFDTOTAL-WTYH202201010.htm
[19] 王飞, 孙亚杰, 裴金梅, 等. 高密度单点接收地震采集数据的处理方法讨论[J]. 物探与化探, 2021, 45(6): 1469-1474. https://www.cnki.com.cn/Article/CJFDTOTAL-WTYH202106013.htm
Wang F, Sun Y J, Pei J M, et al. A discussion on the processing method of high density single point seismic acquisition data[J]. Geophysical and Geochemical Exploration, 2021, 45(6): 1469-1474. https://www.cnki.com.cn/Article/CJFDTOTAL-WTYH202106013.htm
[20] 董金伟, 张宏, 黄凯, 等. 无线节点采集技术在东部复杂地表区地震勘探中的应用及效果[J]. 地球物理学进展, 2021, 36(5): 1948-1955. https://www.cnki.com.cn/Article/CJFDTOTAL-DQWJ202105017.htm
Dong J W, Zhang H, Huang K, et al. Application and effect of wireless node acquisition technology in seismic exploration in the eastern complex surface area[J]. Progress in Geophysics, 2021, 36 (5): 1948-1955. https://www.cnki.com.cn/Article/CJFDTOTAL-DQWJ202105017.htm
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