东营凹陷流体压力系统研究

刘晓峰; 解习农

Volume 28 Issue 1

Jan. 2003

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LIU Xiao-feng, JIE Xi-nong, 2003. Study on Fluid Pressure System in Dongying Depression. Earth Science, 28(1): 78-86.

Citation:

LIU Xiao-feng, JIE Xi-nong, 2003. Study on Fluid Pressure System in Dongying Depression. Earth Science, 28(1): 78-86.

LIU Xiao-feng, JIE Xi-nong, 2003. Study on Fluid Pressure System in Dongying Depression. Earth Science, 28(1): 78-86.

Citation:

LIU Xiao-feng, JIE Xi-nong, 2003. Study on Fluid Pressure System in Dongying Depression. Earth Science, 28(1): 78-86.

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Study on Fluid Pressure System in Dongying Depression

Faculty ofEarth Resources, China University ofGeosciences, Wuhan 430074, China

Received Date: 2002-05-25
Publish Date: 2003-01-25

Abstract

Abstract

Based on mudstone sonic log and measured fluid pressure, the paper analyzes the fluid pressure systems and the controlling factors of pressure system structures and distributions. According to the calculated pressure-depth plot of drills, we can recognize two pressure systems. The upper is normal pressure system, and the lower is abnormal system. The pressure sections and plane maps show that there exist three ring pressure systems in Dongying depression. The inner ring is overpressured system. The middle ring is highly pressured system. The external ring is normal-subnormal pressured system. The highly pressured and overpressured system made up a sealed compartment complex. Because the overpressured system includes the active source rock in the third and forth member of Shahejie Formation, the source rock compartment complex (SR-OPCC) is named here. The pressure conduit systems in the abnormal pressured fluid compartments separate the SR-OPCC into many smaller, nested subcompartments, which include permeable sandstone beds, faults and salt tectonics. So the model of the overpressured compartment-pressure conduit system-overpressured compartment is summarized in the paper. The SR-OPCC has profound and lasting effects on the migration and accumulation of petroleum in Dongying depression.
- fluid pressure system,
- overpressure compartment,
- pressure conduit system,
- subcompartment,
- Dongying depression

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References(21)

References

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