formation and preservation of oil and gas reservoir  油气藏形成和保存

preservation of gas and oil  油气保存

basin reformation and oil-gas preservation  盆地改造和油气保存

Oil and Gas Preservation  油气保存

oil and gas preservation condition  油气保存条件

Accumulation belt of oil and gas  油气聚集带

ACCUMULATION OF OIL AND GAS  油气聚集; 油气聚集成藏; 油气成藏

anticorrosion of oil and gas pipelines  管道防腐

charging of oil and gas  油气注入

Chemical Engineering of Oil and Gas  石油与天然气化工

development of oil and gas field  气田开发

development of oil and gas fields  油气田开发

development plan of oil and gas fields  油气田开发方案

Direct detection of oil and gas  直接找油气

Direction of oil and gas migration  油气运移方向

Distribution of Oil and Gas  油气分布; 油气分布规律

Downward migration of oil and gas  油气倒灌

endowment of oil and gas resources  油气资源禀赋

energy conservation of oil and gas gathering transportation system  油气集输系统节能