用建场测深技术研究陆东地区石炭系火山岩结构特征
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摘要
建场测深是一种采用大功率人工场源激发,具较高分辨率和勘探精度的电法勘探新技术。建场测深剖面对陆东地区石炭系内幕结构反映较为清晰,其电性结构揭示上石炭统发育上、下2套火山岩序列,中间为沉积岩层间隔,并能够反映火山岩序列内部岩性的横向变化及火山构造的发育情况。不同地区石炭系残留程度不同,相应的地层电性结构存在明显差异。在北疆石炭系勘探领域,建场测深技术具有较好的应用效果,为地震勘探起到重要补充作用。
Electric field sounding is a new technique for electric prospecting by means of high power and artificial field source shot with high resolution and accuracy. Its profile can be applied to clear reflection of the Carboniferous structures in Ludong area in Junggar basin. There exist two sets of volcanic sequences in upper and lower parts of the Upper Carboniferous, sedimentary stratum in the middle. The lateral variation of lithology within the volcanic sequences and the development of their volcanic structures are also reflected in it. The study shows that in different areas the Carboniferous is in different degrees of remains which cause that obvious differences occur in corresponding electric structure of volcanic rocks. It is suggested that the electric field sounding technique as an important supplement process is of good applicable results for the Carboniferous explorative domain in North Xinjiang.
Electric field sounding is a new technique for electric prospecting by means of high power and artificial field source shot with high resolution and accuracy. Its profile can be applied to clear reflection of the Carboniferous structures in Ludong area in Junggar basin. There exist two sets of volcanic sequences in upper and lower parts of the Upper Carboniferous, sedimentary stratum in the middle. The lateral variation of lithology within the volcanic sequences and the development of their volcanic structures are also reflected in it. The study shows that in different areas the Carboniferous is in different degrees of remains which cause that obvious differences occur in corresponding electric structure of volcanic rocks. It is suggested that the electric field sounding technique as an important supplement process is of good applicable results for the Carboniferous explorative domain in North Xinjiang.
引文
1)索孝东,张生,董卫斌,等.准噶尔盆地滴北及陆东-五彩湾地区1∶50000高精度重磁、建场测深勘探成果报告,2006.
1)郑建平,杨迪生,夏惠平,等.陆东-大井地区石炭系火山岩岩性岩相特征研究,2009.
[1]吴小奇,刘德良,魏国齐,等.准噶尔盆地陆东-五彩湾地区石炭系火山岩地球化学特征及其构造背景[J].岩石学报,2009,25(1):59-61.
[2]刘登明.应用物探技术识别和预测火山岩储集层[J].新疆石油地质,2009,30(1):109-113.
[3]索孝东,李风霞.三塘湖盆地马朗凹陷石炭系地质结构与火山岩分布[J].新疆石油地质,2009,30(4):463-466.
[4]吕友生,何展翔.建场测深法在油气勘探中的应用[J].石油地球物理勘探,1994,29(6):754-757.
[5]董卫斌,索孝东.复杂地区建场测深勘探采集技术[J].物探装备,2008,18(3):26-29.
[6]李志明,张长江.固定源建场测深在地形复杂区的勘探试验研究[J].吉林大学学报(地球科学版),2002,32(3):279-282.
1)郑建平,杨迪生,夏惠平,等.陆东-大井地区石炭系火山岩岩性岩相特征研究,2009.
[1]吴小奇,刘德良,魏国齐,等.准噶尔盆地陆东-五彩湾地区石炭系火山岩地球化学特征及其构造背景[J].岩石学报,2009,25(1):59-61.
[2]刘登明.应用物探技术识别和预测火山岩储集层[J].新疆石油地质,2009,30(1):109-113.
[3]索孝东,李风霞.三塘湖盆地马朗凹陷石炭系地质结构与火山岩分布[J].新疆石油地质,2009,30(4):463-466.
[4]吕友生,何展翔.建场测深法在油气勘探中的应用[J].石油地球物理勘探,1994,29(6):754-757.
[5]董卫斌,索孝东.复杂地区建场测深勘探采集技术[J].物探装备,2008,18(3):26-29.
[6]李志明,张长江.固定源建场测深在地形复杂区的勘探试验研究[J].吉林大学学报(地球科学版),2002,32(3):279-282.
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