中国西部地区物探工作的思考

针对西部地区油气勘探工作，如何获得好的勘探效益，提出自己一些粗浅的看法。西部地区油气勘探难度很大，要获得勘探的高效益，必须坚持科学的勘探程序，加强地质综合研究，加大勘探投入和新技术投入，十分注重勘探成效。其中的一个核心问题是要做到物探先行。物探先行，不完全是一个勘探部署问题。要做到物探先行，除了要解决一些思想认识问题外，还必须根据西部地区具体情况，抓住几项影响物探工作勘探效果的关键技术，组织科技攻关。通过关键技术的突破，迎来勘探的大好场面和物探技术自身的大发展。西部地区地表条件恶劣，地下构造复杂，静校正、低信噪比和正确成像归位成为影响地震勘探效果的三项关键技术。文中 ：对于前两个问题，从技术角度上得出了一些明确的结论 ;而第三个问题，它牵涉到速度场的研究和叠前深度偏移技术的推广应用，这里结合山地资料的处理和解释，隐含地对它们进行了讨论和分析，明确了技术攻关的思路。

Considerations of geophysical exploration in West China.

Some views on how to achieve efficient hydrocarbon exploration in West China are put forward in the article. Hydrocarbon exploration in West China is very difficult. To have efficient exploration, we must follow scientific exploration procedure, make comprehensive geological research, put into more expenditures and new techniques, and pay more attention to exploration efficiency. Particularly, geophysical exploration must go ahead of the rest. Geophysical exploration serves as forerunner, which is embodied not only in exploration deployment. To achieve this, we must ameliorate our thought and develop some key new techniques that will greatly improve the geophysical exploration efficiency in West China. With the development of these new key techniques, both good exploration situation and obvious technical advance in geophysical exploration will come naturally. There are tough surface condition and complicated subsurface geological structure in West China; therefore, static correction, low S/N ratio and migration are three key problems that influence the efficiency of geophysical exploration. Some definite technical conclusions have been drawn for the two former problems; the third problem involves both velocity field research and prestack migration application. According to the requirements of processing and interpretation of seismic data in mountainous district, I analyse the technical problems to determine the strategy of developing these key techniques.