电磁资料在柴达木盆地东部地区石炭系勘探中的应用

曾庆猛; 刘成林; 马寅生; 张贵斌; 毛智慧

电磁资料在柴达木盆地东部地区石炭系勘探中的应用

1.
中国地质科学院地质力学研究所, 北京 100081
2.
中海油田服务股份有限公司测井中心, 河北廊坊 065201
3.
北京中油瑞飞信息技术有限公司, 北京 100007

基金项目:

中国地质调查局地质调查项目“柴达木盆地古生代油气资源调查评价” 1212011120964

详细信息

作者简介:
曾庆猛(1977-), 男, 湖北, 博士后, 主要从事地震、重磁电方面研究工作。E-mail:441069661@qq.com

中图分类号: P631.325;P534.45
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- 文章访问数: 137
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- PDF下载量: 11
- 被引次数: 0
出版历程
- 收稿日期: 2016-05-03
- 刊出日期: 2017-02-01

ELECTROMAGNETIC DATA APPLICATION IN CARBONIFEROUS EXPLORATION OF EASTERN QAIDAM BASIN

1.
Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China
2.
Well-Log Center of China Oilfield Services Limited, Langfang 065201, China
3.
Beijing Richfit Information Company, Beijing 100007, China

摘要

摘要: 以柴达木盆地东部新采集的电磁资料为中心，同时以钻井、地震资料为约束，结合其他勘探资料、重力资料进行柴东地区石炭系综合研究、联合解释。研究过程中，首先对电磁资料进行了前期的预处理和反演，主要采用了-维Bostick反演、-维连续介质反演、二维共轭梯度反演、二维连续介质反演及最优化电性分层等反演技术；而后通过对电磁资料进行联合解释和综合研究，得出了柴达木盆地东部石炭系厚度图、石炭系埋深图等柴东地区综合研究成果；最后利用上述研究成果预测了柴达木盆地东部石炭系含油气有利区带，并且进-步针对柴达木盆地东部石炭系勘探提出了有意义的结论和建议。
- 柴达木盆地 /
- 石炭系 /
- 电磁勘探 /
- 地震勘探
Abstract: Carboniferous formation in the eastern Qaidam Basin belongs to a new area and new strata and lack of data on well and seismic, so processing and interpretation of electromagnetic data must be valued. New Electromagnetic data in eastern Qaidam Basin was used as the center, constrained with drilling and seismic data, and combined with other exploration data, gravity data to do comprehensive research and joint interpretation in this area. Firstly the electromagnetic data was pre-processing and inversed, mainly using the one-dimensional Bostick inversion, one-dimensional continuous medium inversion, two-dimensional conjugate gradient inversion, 2D continuous medium inversion and optimization of electric-layered inversion technique. Then the electromagnetic data and other data was comprehensively interpreted and researched, thus get some comprehensive research results such as Carboniferous thickness map, Carboniferous buried-depth map, so as to effectively predict the oil traps in eastern Qaidam Basin. At last, some conclusions and recommendations were advised in the Carboniferous exploration of Eastern Qaidam Basin.
- Qaidam Basin /
- Carboniferous /
- Electromagnetic survey /
- Seismic exploration

HTML全文

图 1 柴东地区断裂体系图

Figure 1. Fault system in eastern Qaidam Basin

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图 2 资料处理解释流程图

Figure 2. Flowchart of data processing and interpretation

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图 3 8027测线静位移校正效果对比图(上图为静校正前，下图为静校正后)

Figure 3. Line 8027 Contrast map of static-displacement correction results

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图 4 8027测线反演效果对比图

Figure 4. Line 8027 contrast map of inversion results

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图 5 8027测线界面信息提取对比图

Figure 5. Interface-information contrast map of line 8027

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图 6 电阻率测井对比特征图

Figure 6. Resistivity logging contrast map

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图 7 地震CD546解释剖面图

Figure 7. Seismic interpretation profile of line CD546

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图 8 德令哈地区非地震(电磁)勘探石炭系底面埋深图

Figure 8. Carboniferous base layer Buried depth map by non-seismic (Electromagnetic) exploring in Delingha area

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图 9 德令哈地区非地震(电磁)勘探石炭系厚度图

Figure 9. Carboniferous thickness map by non-seismic (Electromagnetic) exploring in Delingha area

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表 1 埃北1井、德参1井等钻井分层数据表

Table 1. Drilling stratification data table of Aibei No.1 drilling, Decan No.1 drilling and Deke No.1 drilling

井号	井深/m	补心海拔/m	Q₁₊₂	N₂³	N₂²	N₂¹	N₁	E₃	K	J₃	C
德参1	4456	2866.71	96	799	1926	2366	3107	3935	4242	4456.73▽
德科1	3000	2982.57				1160	2550	2880	3000▽
埃北1	1319	2889.20					328	906			1319▽

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表 2 德页1井地层分层对比数据

Table 2. Stratigraphic stratification correlation data of Deye No.1 drilling

界	系	统	组	段	底界深度/m
新生界	第四系	全新统	七个泉组	Q₁₊₂
	第四系	更新统	七个泉组	Q₁₊₂
	新近系	上新统	狮子沟组	N₂³	508
			下油砂山组	N₂²	769
			下油砂山组	N₂¹	894
	古近系	中新统	上干柴沟组	N₁	1120
	古近系	渐新统	下干柴沟组	E₃	1210
中生界	白垩系		犬牙沟组	K+J
中生界	侏罗系			C
				基岩	1306

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