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Article Navigation >  Acta Sedimentologica Sinica  > 2007  >  25(2): 319-324

ZHAO Dongsheng. Maturity of Tertiary Oilsource in West Qaidam Basin[J]. Acta Sedimentologica Sinica, 2007, 25(2): 319-324.
Citation: ZHAO Dongsheng. Maturity of Tertiary Oilsource in West Qaidam Basin[J]. Acta Sedimentologica Sinica, 2007, 25(2): 319-324.
shu

Maturity of Tertiary Oilsource in West Qaidam Basin

  • Geology Department of Northwestern University,Xi′an 710069;2 Company of Qinghai Oilfield,CNPC, Dunhuang, Gansu 736202

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  • Corresponding author: ZHAO Dongsheng
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2007-04-10
  • Maturity and types of crude oil depend on maturity of source rock. It is adopted R0, C2920S/20S+20R and C29ββ/ββ+αα define the maturity of source rock, and C2920S/20S+20R, C29ββ/ββ+αα as well as vitrinite reflectance of crude oil reduction (RC) to define maturity of crude oil in west Qaidam basin. In the light of studies there are two types of crude oil for lowmaturity and maturity in west Qaidam basin, original lowmaturity crude oil migrate to deep structural trap of Mangya depression and its margin, part of lowmaturity crude oil remove to shallow structural trap because of affection of late movement, late maturity crude oil accumulates in the deep structural trap. Therefore, exploration of primary reservoir of lowmaturity and maturity crude oil, in the west Qaidam basin, should surround
    deep structural trap of Mangya and Gasi sag, and shallow structural trap of Xiaolianshan sag and its margin.
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  • Received:  1900-01-01
  • Revised:  1900-01-01
  • Published:  2007-04-10

Maturity of Tertiary Oilsource in West Qaidam Basin

  • Geology Department of Northwestern University,Xi′an 710069;2 Company of Qinghai Oilfield,CNPC, Dunhuang, Gansu 736202
    Corresponding author: ZHAO Dongsheng
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2007-04-10

Abstract: Maturity and types of crude oil depend on maturity of source rock. It is adopted R0, C2920S/20S+20R and C29ββ/ββ+αα define the maturity of source rock, and C2920S/20S+20R, C29ββ/ββ+αα as well as vitrinite reflectance of crude oil reduction (RC) to define maturity of crude oil in west Qaidam basin. In the light of studies there are two types of crude oil for lowmaturity and maturity in west Qaidam basin, original lowmaturity crude oil migrate to deep structural trap of Mangya depression and its margin, part of lowmaturity crude oil remove to shallow structural trap because of affection of late movement, late maturity crude oil accumulates in the deep structural trap. Therefore, exploration of primary reservoir of lowmaturity and maturity crude oil, in the west Qaidam basin, should surround
deep structural trap of Mangya and Gasi sag, and shallow structural trap of Xiaolianshan sag and its margin.

ZHAO Dongsheng. Maturity of Tertiary Oilsource in West Qaidam Basin[J]. Acta Sedimentologica Sinica, 2007, 25(2): 319-324.
Citation: ZHAO Dongsheng. Maturity of Tertiary Oilsource in West Qaidam Basin[J]. Acta Sedimentologica Sinica, 2007, 25(2): 319-324.
shu

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