地层水中的脂肪酸、环烷酸、酚的分布特征及其与油气的关系

DISTRIBUTION OF FATTY ACIDS, NAPHTHENIC ACIDS AND PHENOL IN FORMATION WATER AND THEIR SIGNIFICANCE IN SEARCHING FOR HYDROCARBONS

黄福堂

Huang Futang

石油工业部大庆石油勘探开发研究院

Rcascarch Institute of Petroleum Exploration and Development of Daqing Oil Field, Ministry of Petroleum Industry

本文根据大量的分析资料,研究了松辽盆地不同地区、不同层位的油田水与非油田水中脂肪酸、环烷酸、酚等化合物的含量及分布特征,以探讨地层水中“指纹标志”化合物与油气的形成、运移、储存的关系。

Based on large quantities of analytical data, the author studied the characteristics of the distribution of fatty acids, naphthenic acid and phenol in formation water and non-formation water of various strata and various are in northern Songliao Basin, and probed into the relationship between the contents of "fingerprint indicator" compounds and the accumulation of oil. Formation water can be closely related to hydrocarbon generation, migration and preservation.Organic acids are the conversion products of org-ganic matter to hydrocarbons, naphthenic acids, fatty acids were formed in source rocks and dissolved in pore water.Hence, the contents of fatty acids, naphthenic acids and phenol in oilfield water and subsurface water adjacent to oilfields increase towards oil bearing boundary, main source beds and reservoirs on the basis of regional geological survey. Oil and gas accumulation can be predicted by the change in contents of organic acids and phenol. Through practice it is proved that they are good indicators for hydrocarbon exploration and are of great importance in hydrogeochemistry in searching for oil and gas.

https://doi.org/10.11781/sysydz198602160