石油实验地质2009，Vol.31Issue(5)：518-521,4.
塔里木盆地库车坳陷烃源岩热模拟实验及油气源对比
THERMAL SIMULATING EXPERIMENT OF SOURCE ROCK AND GASSOURCE CORRELATION IN THE KUQA DEPRESSION OF THE TARIM BASIN
范明 1黄继文 1陈正辅1
作者信息
- 1. 中国石油化工股份有限公司,石油勘探开发研究院,无锡石油地质研究所,江苏,无锡,214151
- 折叠
摘要
Abstract
9 samples from the Kuqa Depression of the Tarim Basin were collected and thermal simulated with a step of 40 ℃ from 260 ℃ to 540 ℃. The components and ethane carbon isotopic compositions of gases generated from simulated samples were analyzed. The drying coefficients (C_1/(C_2+C_3)) were figured out. Using drying coefficient of natural gas from Well Ku-1 as parameter for interpolation method, the possible thermal maturities of source rock as well as temperatures are calculated. According to geological background and the possible maturity range, the study showed that only the gas generated at about 420 ℃ from sample YM-4 of Jurassic coal formation is consistent with Well Ku-1 both in hydrocarbon components and ethane isotopic composition. That means Jurassic coal formation is the main source rock of natural gas from Well Ku-1. Combined with ethane carbon isotope, component and maturity data, the simulating gas drying coefficient can be used in gas－source correlation. The interpolation method overcomes the influence caused by organic thermal maturity and provides a new way for study of oil－gas－source correlation.关键词
干燥系数/热模拟/烃源岩/油-源对比/库车坳陷/塔里木盆地Key words
drying coefficient/ thermal simulating experiment/ source rock/ oil－source correlation/ Kuqa Depression/ Tarim Basin分类
能源科技引用本文复制引用
范明,黄继文,陈正辅..塔里木盆地库车坳陷烃源岩热模拟实验及油气源对比[J].石油实验地质,2009,31(5):518-521,4.
