石油与天然气地质
石油與天然氣地質
석유여천연기지질
OIL & GAS GEOLOGY
2015年
4期
581-586
,共6页
李宁熙%黄海平%孙晶晶%刘梅%张海峰%蒋文龙
李寧熙%黃海平%孫晶晶%劉梅%張海峰%蔣文龍
리저희%황해평%손정정%류매%장해봉%장문룡
生物降解%地球化学%非常规油气%油砂%图牧吉%松辽盆地
生物降解%地毬化學%非常規油氣%油砂%圖牧吉%鬆遼盆地
생물강해%지구화학%비상규유기%유사%도목길%송료분지
biodegradation%petroleum geochemistry%unconventional oil resource%oil sand%Tumuji%Songliao Basin
油砂是重要的非常规油气资源,对油砂的地球化学研究可以更好地指导油砂资源潜力评价。收集了13件松辽盆地西部图牧吉农场的油砂样品,并做了含油率、族组成以及色谱-质谱( GC-MS)分析。实验结果显示图牧吉油砂含油率较高,族组分中以非烃含量为最高。 GC-MS分析饱和烃和芳香烃馏分中大部分化合物被降解,其中正构烷烃、藿烷和甾烷系列均受到不同程度降解,三环萜烷抗降解能力较强未受影响。芳烃化合物中萘和菲等化合物都已消失,三芳甾系列较完整。油砂中没有出现25-降藿烷系列,降解程度为6~8级,通过抗降解能力较强的化合物判断,原油基本来自同一油源。
油砂是重要的非常規油氣資源,對油砂的地毬化學研究可以更好地指導油砂資源潛力評價。收集瞭13件鬆遼盆地西部圖牧吉農場的油砂樣品,併做瞭含油率、族組成以及色譜-質譜( GC-MS)分析。實驗結果顯示圖牧吉油砂含油率較高,族組分中以非烴含量為最高。 GC-MS分析飽和烴和芳香烴餾分中大部分化閤物被降解,其中正構烷烴、藿烷和甾烷繫列均受到不同程度降解,三環萜烷抗降解能力較彊未受影響。芳烴化閤物中萘和菲等化閤物都已消失,三芳甾繫列較完整。油砂中沒有齣現25-降藿烷繫列,降解程度為6~8級,通過抗降解能力較彊的化閤物判斷,原油基本來自同一油源。
유사시중요적비상규유기자원,대유사적지구화학연구가이경호지지도유사자원잠력평개。수집료13건송료분지서부도목길농장적유사양품,병주료함유솔、족조성이급색보-질보( GC-MS)분석。실험결과현시도목길유사함유솔교고,족조분중이비경함량위최고。 GC-MS분석포화경화방향경류분중대부분화합물피강해,기중정구완경、곽완화치완계렬균수도불동정도강해,삼배첩완항강해능력교강미수영향。방경화합물중내화비등화합물도이소실,삼방치계렬교완정。유사중몰유출현25-강곽완계렬,강해정도위6~8급,통과항강해능력교강적화합물판단,원유기본래자동일유원。
Being one of the important unconventional oil resources,oil sand is well worth of geochemical study so as to better guide its resource assessment.Thirteen oil sand samples were collected from Tumuji ranch in western Songliao Ba-sin and analyzed for oil yield,bulk composition and GC-MS.The result shows that the oil yield of oil sand is high,and non-hydrocarbon components dominate the bulk composition.Most compounds in saturated and aromatic hydrocarbon fractions were largely biodegraded.The n-alkanes,isoprenoid alkanes,hopanes and steranes were all degraded in varying degree except for tricyclic terpanes.No 25-norhopane series has been detected in the studied sample suite.The naphtha-lene and phenanthrene series were all destroyed but the triaromatic steroids are intact.These oils are derived from single source rock system on the basis of biodegradation resistant compound signatures.