塔里木盆地牙哈油气田沥青垫特征及成因──烃的特征与沥青垫成因

张敏; 张俊

doi:10.11743/ogg19980108

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塔里木盆地牙哈油气田沥青垫特征及成因──烃的特征与沥青垫成因
CHARACTERS AND ORIGIN OF TAR MATS IN YAHA OIL-GAS FIELDS,TARIM BASIN:FEATURES OF HYDROCARBONS AND ORIGIN OF TAR MATS
1998年19卷第1期页码：49-52
网络首发：1998-03-25，

纸质出版：1998
DOI： 10.11743/ogg19980108
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张敏, 张俊. 塔里木盆地牙哈油气田沥青垫特征及成因──烃的特征与沥青垫成因[J]. 石油与天然气地质, 1998,19(1):49-52. DOI： 10.11743/ogg19980108.

Zhang Min, Zhang Jun. CHARACTERS AND ORIGIN OF TAR MATS IN YAHA OIL-GAS FIELDS,TARIM BASIN:FEATURES OF HYDROCARBONS AND ORIGIN OF TAR MATS[J]. 1998, 19(1): 49-52. DOI： 10.11743/ogg19980108.

摘要

塔里木盆地牙哈油气田储层的沥青垫、油砂、沥青砂岩和原油正构烷烃、饱和烃生物标志物及芳烃组成特征具有相似性

说明它们的烃类来自相同的烃源岩。沥青垫的形成是因气体侵入引起油藏中原油沥青质沉淀所致。

Abstract

The characteristics of saturated hydrocarbons and n alkane hydrocarbons of reservoir core extracts and crude oil in Yaha oil and gas fields in Tarim Basin are analyzed and studied systematically in this paper

the results show similarities in n alkane distribution

biomarkers distribution and their combined characteristics of saturated hydrocarbons as well as geochemical characteristics of aromatic hydrocarbons for tar mats

oil sand

asphaltic sandstone and crude oil.These characteristics suggest that hydrocarbons of these samples originated from the same source rocks.However

geochemical characteristics of tar mats reveal that the formation mechanism of tar mats is the intrusion of gases which results in the deposition of asphaltene in crude oils.