|
|||||
|
|
| 卟啉的研究现状及其应用 | |
| 引用本文： | 刘洛夫,胡爱梅.卟啉的研究现状及其应用[J].地球科学进展,1994,9(2):51-58. |
| 作者姓名： | 刘洛夫 胡爱梅 |
| 作者单位： | 石油大学 |
| 摘 要： | 在前人研究资料及作者近年来的研究成果的基础上，综述了卟啉化合物地球化学研究的现状，包括金属卟啉的类型，卟啉的化学结构系列，高度脱链基卟啉和高碳数咔琳等及其它们在沉积物(如油页岩、煤和现代沉积物)中的分布特征和成因机理。指出了今后需要加强研究的领域，如沉积物中新的金属卟啉类型探讨和卟啉化学结构的确定等。文章还综述了卟啉化合物地球化学指标在地质勘探中的应用，如:评价生油岩质量，油源对比，油气运移研究，古沉积环境研究和有机质热成熟度研究等。 |
| 关 键 词： | 金属卟啉 卟啉的化学结构 高度脱链基卟啉 高碳数卟啉 卟啉的地质应用 |
| 收稿时间： | 1993-12-01 |
PRESENT RESEARCH SITUATION OF METALLOPORPHYRINS AND THEIR GEOLOGICAL APPLICATIONS |
|
| Liu Luofu and Hu Aimei.PRESENT RESEARCH SITUATION OF METALLOPORPHYRINS AND THEIR GEOLOGICAL APPLICATIONS[J].Advance in Earth Sciences,1994,9(2):51-58. | |
| Authors: | Liu Luofu and Hu Aimei |
| Institution: | Department of Greosciences, University of Petroleum, Beijing 102200 |
| Abstract: | In this paper,present research situation of metalloporphyrin geochemistry, including metalloporphyrin types, chemical structure series of porphyries, highly dealkylated porphyries, and high carbon number porphyrins, and their origins and distributions in sediments(e. g. oil shales, coals and recent sediments), was summarized based on the research data from previous scientists and recent resalts from the authors of this paper. In oil and source rock samples, nickel and vanadyl porphyrins are the major metalloporphyrin types. Iron porphyrins, however, also exist in oil shales and coals.Copper complex was found in recent soft sediments. Metalloporphyrin distributions in coals are different from those in oils, shales and source rocks. So far, only iron, gallium, manganese and nickel porphyrins have been detected in coals, without copper and vanadyl types. Evidences for cobalt and zinc complexes occurring in sediments were obtained from ICP-MS and probe MS data,etc., but they need further confirmation. Geoporphyrins belong mainly to cycloalkanporphyrin and aetioporphyrin structure series. The other three series, di-CAP, Rhod-Aetio and Rhodo-CAP, are the minor ones. Usually, the carbon numbers of geoporphyrins are from C26-C33. Highly dealkylated porphyrins (HDP, In the paper, the authors pointed out that further work on metalloporphyrin studies should be carried out in some areas, such as finding new metalloporphyrin types in sediments and determining chemical structures of porphyrins. Applications of porphyrin compounds to geological exploration were summarized in this paper. Porphyrin is an important indicator for estimating source rock. Source rock with a high amount of porphyrin may be a high quality oil-generating rock. In general, samples with type I-II kerogen contain more porphyrins, those with type II kerogen contain medium amount of porphyrins, and those with type III contain relatively less porphyrins. Porphyrins are stable biomarkers and often used for correlative comparisons between oils; between source rocks; and between oil and source rock. During oil migration, porphyrins in oil may be absorbed by clay minerals; therefore, with increasing migrating distance, concentration of porphyrin in oil decreases gradually. In addition, aetio series are less polar than CAPs, and the former migrates faster than the latter, so, the CAP/(CAP+aetio) ratio is an oil-migrating index. One of the main applications of porphyrins to geology is the study of palaeo-environment of deposition. Nip/(Nip+V)=Op value is a useful indicator for marine-terrestrial environment determination, because terrestrial organic matter provides more nickel porphyrins, while marine organic matter produces relatively more vanadyl porphyrins. CAP/(CAP +aetio ), average carbon number, minimum carbon number and maximum carbon number of porphyrins are useful indices for determining maturity of organic matter. With increasing maturity, all of these indices decrease. |
| Keywords: | Metalloporphyrins Chemical structures of porphyrins Highly dealkylated por-phyrins High carbon number porphyrins Geological applications of porphyrins |
| 本文献已被 CNKI 维普 等数据库收录！ | |
| 点击此处可从《地球科学进展》浏览原始摘要信息 | |
| 点击此处可从《地球科学进展》下载免费的PDF全文 | |