根据甲烷碳同位素法和烃类比值法分析判断该区地表烃类异常主要由深部油气活动所产生。
The surface hydrocarbon anomalies in the area was caused by oil and gas activities in deep part, according to the analysis and judgement using the carbon isotope and hydrocarbon ratio.
控制异常高压形成的因素主要有欠压实作用、黏土矿物脱水、烃类生成及水热增压。
The factors that control the development of the abnormal pressure are uncompaction, clay mineral dewatering, hydrocarbon forming and aquathermal pressure boost.
超压异常的形成与不均衡压实、水热增压、烃类的生成及存在较好的封闭层有关。
The authors of this paper hold that the mechanism of abnormal pressure is related with disequilibrium compaction, aquathermal expansion, hydrocarbon generation and better sealing strata.
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