海上油气化探技术及应用

海域油气化探测量指标一般为海底沉积物中的烃类及其蚀变产物和海水介质中的烃类,以烃类浓度及其蚀变产物为主要测量对象的油气化探是评价海上油气远景为数不多的重要方法之一。目前底层水采样分析与海底沉积物取芯分析已成为海上油气化探一种有效且相对经济的技术组合,海底沉积物取芯测量和海水嗅探器现场分析是海上油气化探的主要手段。国内外众多海域油气化探研究结果证实,海域油气化探在含油气远景区块识别和含油气远景构造油气属性判识方面可以提供重要的地球化学信息。

THE OFFSHORE OIL AND GAS GEOCHEMICAL EXPLORATION TECHNIQUE AND ITS APPLICATION

The offshore oil and gas geochemical indices generally include hydrocarbons and their alteration products in submarine sediments as well as hydrocarbons in seawater media. The oil and gas geochemical exploration with concentrations of hydrocarbons and their alteration products as the main objects is one of the few methods for evaluating offshore oil and gas prospects. In present, bottom bed water sampling and analysis and coring analysis of submarine sediments have constituted an effective and relatively economical technical combination, and the coring measurement of submarine sediments and in-situ sniffer analysis are main means for offshore oil and gas geochemical exploration. Numerous offshore oil and gas geochemical exploration researches conducted both in China and abroad prove that offshore oil and gas geochemical exploration can provide important information for the recognition of oil-and gas-bearing prospect blocks and the judgement of oil and gas attributes in oil- and gas-bearing prospect structures.