| 应用层间速度差分析在塔里木盆地北部地区预测油气分布 |
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| 引用本文：陈开远,沈林克,杜宁平.1996.应用层间速度差分析在塔里木盆地北部地区预测油气分布[J].地球学报,17(z1):72-77. |
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| 中文摘要:层间速度差分析是一项简便而实用的方法，我们将其发展成为一种地震油气检测技术，成功地应用于塔里木地北部地区的油气勘探中，预测了玫盖提构造的油气富集部位。进而将其扩广到三维空间，预测达里亚构造的含油气分布。获工业油气流的M4井和达里亚的多口开发井亦证实了我们的预测，进一步拓宽了层间速度差分析的应用范围。 |
| 中文关键词:层间速度差分析 地震油气检测 速度分析 塔里木 |
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| Application of the Differential Interformational Velocity Analysis for Predication in Northern Tarim Basin |
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| Abstract:This paper discusses emphatically how to apply the Differential Interforma-tional Veolocity Analysis (DIVA) to the seismic indication hydrocarbon and how to fix in with the geological environment in northern Tarim basin.We think that the DIVA si not only applicable to porosity and gas prediction, but also to oil indication because similar DI-VA anomaly also results from the oil accumulation. We use the method of veloctity axis translation instead of the simple"overlain" for the construction of DIVA curve to move out the influence of interval veloctity natural increase with depth.
A case of a new exploring area, Maigaiti trap is disscussed. The DIVA profile for line 92-I crosses one wildcat-well, well M3, which was obtained a high-productivity from Car-boniferous. Along the area, the DIVA anomaly extend twoard northwest which is the low position in the trap rather than the high point of the trap. We think next drill should lo-cate on the northwest of the M3 in according to DIVA anomaly rather than the east part, a higher position of the tyap. A year after it , well M4, located on the onorthwest of the M3, was drilled and found a very good productivity in Carboniferous.
Lastly, we extend the application of DIVA into three dimention or plane anomaly. The plane DIVA anomaly can be used to delimite oil-bearing area. A successful experience was obtain in Daliya oil-field of Tarim basin. The oil-bearing area of the production beds can be delimitated and the quantity of oil accumuntion on basis of the quality of the DIVA plane anomaly. After this, very good productivity on commercial scale was obtained in many producing-wells in the DIVA anomaly area. |
| keywords:differential interformational velocity analysis (DIVA) seismic hydrocarbon indication velocity analysis Tarim |
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