呼图壁和霍尔果斯天然气成因判识  

The discussion of nature gas origin in Hutubi and Huoerguosi

作　　者：张林[1,2,3] 黄光辉[1] 李剑[2,3] 李志生[2,3] 向龙[1] 侯丽娟[1] 

机构地区：[1]长江大学"油气资源与勘探技术"教育部重点实验室,湖北荆州4340231 [2]中国石油勘探开发研究院廊坊分院,河北廊坊065007 [3]中国石油天然气成藏与开发重点实验室,河北廊坊065007

出　　处：《中国矿业》2015年第10期108-112,共5页China Mining Magazine

基　　金："十二"五国家专项"我国主要含煤盆地气源岩地球化学特征及分布研究"资助(编号:20112x05007-01)

摘　　要：呼图壁和霍尔果斯油气田位于我国准格尔盆地南缘,其蕴含着丰富的油气资源,是我国西部重要的油气田,该区域天然气在成因判识方面,特别是在干酪根裂解气与原油裂解气的判识方面仍存在争议,针对该问题在大量基础资料统计和实验分析工作下,优选了Ln(C1/C2)与Ln(C2/C3)、C1/C3和C2/C3、C2/iC4与C2/C3、δ13 C3值和C2/C3、δ13 C1值和δ13 C2值等作为判识干酪根裂解气和原油裂解气的指标,并对呼图壁和霍尔果斯油气田天然气进行了判识,认为它们主要来源于侏罗系干酪根裂解气。并通过原油裂解气生气动力学和同位素动力学模拟发现该区原油裂解气转化率很低,进一步证明了两个油气田天然气主要为干酪根裂解气。Hutubi and Huoerguosi oil and gas field is located in the southern margin of the Zhungeer basin in China,it is rich in oil and gas resources,it is the important oil and gas field in our country western, the natural gas identification in terms of origin,especially in kerogen and oil cracking gas identification is still controversial, aiming at this problem,in a large number of basic data statistics and experimental analysis, we have choose the parameter of Ln（C1/C2 ）, Ln（C2/C3 ）, C1/C3 and C2/C3 , C2/iCe and C2/Ca , δ13 C3 and C2/C3, δ13C1and δ13 C2 as the index, to identified the natural gas in Hutubi and Huoerguosi oil and gas field, and think that they are kerogen cracking gas and mainly from the Jurassic. The simulation of crude oil cracked gas dynamics and the simulation isotope dynamics showed that the crude oil cracking gas conversion rate is very low,so that the gas in that two oil and gas fields are mainly from kerogen cracking.

关 键 词：原油裂解气 干酪根裂解气 原油裂解气生气动力学 同位素动力学原油 裂解气转化率 

分 类 号：P571[天文地球—矿物学]