The Study Of Theory And Method Of Beochemistry Well Logging Technology Of The Aromatic Compound

Logging is an important step of exploration and one of the methods of discriminating oil reservoir and gas reservoir. Every method to enhance the persent of discriminating oil reservoir and gas reservoir is to contribute to logging technique, and also beneficial to exploration field. Meantime, new method to enhance the persent of discriminating oil reservoir and gas reservior is to contribute to logging technique, and also beneficial to exploration field. For the logging technique to discriminating oil, it is not difficult to discriminate between pure oil reservoir and pure water reservior, and the wrong persentage is small. But it is hard to distingguish between oil and oil-water reservior , between oil-water and water reservior, especially water-oil and oil-water reservior, and there are more questions, such as the wrong and missed discriminating in drilling. Therefore, it is imperative to enhance the discriminating between water-oil and oil-water reservior in order to fall the wrong and missed persentage in the complex zone of distribution of water-oil and oil-water.Petroleum is related to the form, evolvement and preservation of it. The saturated hydrocarbons, arene, non hydrocarbon and bitumen are contained the special geochemical information. Therefore, petroleum component is influenced the form of hydrocarbons and the control of movement, collection and preservation. The different molecular structure and property is result in the different property in the same field. To the same district and horizon petroleum, the petroleum component is mostly imflenced the factor of movement, collection and preservation in order to the same and near source. On account of π bond, petroleum is prone tosolute to water, so it makes arene to the differece of abundence and component in the pure oil and oil-water reservoir. The distribution of arene is the reliable carrier of the discriminating the pure oil and oil-water reservoir.In this paper, aim to the west zone of songliao basin, which is complex distributing zone, by the confirm to the method of dispose the petroleum and rock sample, it is to detect arene by LC, and also to determinate the appropriate flowing phase, sample size, detection wavelength and the method of determination construction and quantity. To prove the influence of the distribution of water to aromatic compounds, it is to study of the influece of water to aromatic compounds and the law of the series compounds of naphthalene and phenanthrene in different temperature and action of water, which is based to the choice of efficient geochemistry index and the establishment to discriminate reservoir producing fluid property. It is also to establish six geochemistry charts, which use two different index by logarithm, to discriminate reservoir producing fluid property. The correct percentage is between 81.3% and 86.7% with the charts to discriminate the oil reservoir, water-oil reservoir, oil-water reservoir and water zone synthetically and the average percentage is 84.9%;the wrong percentage is between 13.3% and 18.7% and the average percentage is 18.1%, which is better than general logging methods.