论油气勘探开发中的水文地质,工程地质方法技术

油气勘探开发涉及水文地质，工程地质许多领域及其方法技术，油气水烃类，矿化度等有机，无机地球化学信息是判别油气成藏与油气运移的重要依据，通过对此类地化参数的检测可有效地指导油气勘探，如塔中，松南。油田水文地质直接关系到油田开发方案的合理设计与顺利实施－对油田水文地质条件前期分析，开采中水文地质参数的跟踪监测，选择合适的注水方式，时机及注水量，是油田稳产增产的关键；钻井，试采工程技术受不同工区（地表，

The ways of Hydrology and Engineering Geology During Oil and Gas Exploration

The oil and gas explorating concerns for hydrology and engineeringgeology, and some other technology ways. Some materials, such as gas hydro -carboncompound, mineralization intensity and other geochemistry information both in organicand inorganic, are criteria to deduce oil and gas forming and transporting. The containingof these parameter is benefit to direct exploration. We made good use of above parametersin Tazhong and Songnan oil fields. The oil field hydrology and engineering geologyconditions are directly related with the reasonable design and smooth exectuting ofrecovering and explorating to oil and gas. The key to steady, increasing production isearlier stage analysis of the hydrogeology conditions, hydrogeology parameters monitoringduring exploiting and the choice of water nooding fashion, opportunity and quantity;Drilling and exploiting are restricted by (surface, underground ) hydrogeology andengineering geology conditions of different work areas, but drilling speed, quanlity may beraised and costs reduced, while successful oil discover, exploitation ensured by electingbits, compounding muds, adopting techniques of directional drilling, fracture, etc..Otherwise, oil and gas recovering can lead to side-effect, such as petroleum andwaste-liquid pollution, land subsidence, and casing pipe deformation. Thus, we shouldset up preventing and ndnitoring system, dealing with and recovering pollution, and thepressure containing of groundwater layer.