Hydrocarbon accumulation period of the second member of Shahejie Formation in JZ25S Oil and Gas Field;

Soil magnetic property anomaly signatures over oil and gas field in Linnan area, Shandong Province;

Ion chromatograph determination for anions in the high H2S wastewater from the oil and gas fields;

Tectonic setting of the world's giant oil and gas fields and its revelation for hydrocarbon exploration;

Monobore drilling and completion technique and feasibility of its application in oil and gas fields,offshore China;

Methods to predict remaining recoverable reserves and reserve-production ratio of oil and gas fields;

Numerical simulation of organic pollutants in oil and gas fields under soil-water environment and model for prediction;

The key problem of gas cap oil field development is how to deal with the interrelation between gas area and oil area, the adopted exploitation strategy is to make the interrelation harmonious.

It is very difficult to design an earlystage development program of an oil/gas field due to unsufficient available data.

This paper discussed the first-order controlling factors of large- and medium-sized oil/gas fields: the rapid-change belt of isotope geochemistry and Pacific block.