CHARACTERISTICS OF FAULTS IN THE PU-WEI RING DEPRESSION AND ITS CONTRIBUTION TO MIGRATION AND ACCUMULATION OF OIL AND GAS

LIU Wei; YU Chuan-mou

Volume 15 Issue 2

Jun. 2009

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LIU Wei, YU Chuan-mou, 2009. CHARACTERISTICS OF FAULTS IN THE PU-WEI RING DEPRESSION AND ITS CONTRIBUTION TO MIGRATION AND ACCUMULATION OF OIL AND GAS. Journal of Geomechanics, 15 (2): 190-200.

Citation:

LIU Wei, YU Chuan-mou, 2009. CHARACTERISTICS OF FAULTS IN THE PU-WEI RING DEPRESSION AND ITS CONTRIBUTION TO MIGRATION AND ACCUMULATION OF OIL AND GAS. Journal of Geomechanics, 15 (2): 190-200.

Citation:

LIU Wei, YU Chuan-mou, 2009. CHARACTERISTICS OF FAULTS IN THE PU-WEI RING DEPRESSION AND ITS CONTRIBUTION TO MIGRATION AND ACCUMULATION OF OIL AND GAS. Journal of Geomechanics, 15 (2): 190-200.

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CHARACTERISTICS OF FAULTS IN THE PU-WEI RING DEPRESSION AND ITS CONTRIBUTION TO MIGRATION AND ACCUMULATION OF OIL AND GAS

LIU Wei^{1, 2},
YU Chuan-mou²

1.
Institute of Geology and Geophysics, Chinese Academy of Sciences, Beiging 100029, China
2.
Zhongyuan Oilfield Company, Sinopec, Henan Puyang 457532, China

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Received: 2009-04-20
Published: 2009-06-01

Abstract

Abstract

The Pu-Wei ring depression, with complex structures, has been poorly studied. Based on analysis on the faults, this paper deals with function of the faults in migration and accumulation of oil and gas. The research demonstrates that both the Pucheng-Chenying fault zone and the Weidong-Wendong fault zone consist of five master control faults, which control the structural formwork and migration and accumulation of oil and gas. The activity of such faults as Weidong, Wendong, Pucheng, Pu31 lasted a long period and match well with oil accumulation in age. The faults serve as a prominent way for oil migration from deep zone to superficial part. The faults and sand bodies of good connectivity, as the main migration pathway, together constitute the fault-type and fault-sand-type transforming system for oil and gas. The fault-type transforming system connects souce rock and reservoir and enhances the ability of vertical oil migration; and the fault-sand-type is chiefly helpful to lateral transforming. The faults block or regulate migration and its direction, leading to the formation of structural-stratigraphic hydrocarbon reservoir near the main faults and formation of lithologic hydrocarbon reservoir at the edge far away the main faults.
- the Pu-Wei ring depression,
- the fault activity,
- the migration and accumulation oil and gas,
- the transforming system

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References(24)

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