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PRACTICE AND COGNITION OF WATERFLOOD DEVELOPMENT IN CHANG 6 RESERVOIR OF CHUANKOU OILFIELD

Yan Yunkui

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Abstract

For Chuankou oilfield belongs to ultra-low permeable oilfield, the average air permeability is 0.79 ×10 -3 -0.96 × 10 -3 μ m2, its reservoir physical characteristics is poor, and reservoir pressure is low, there isn′t the nature off-take potential, output descend quickly after fracturing. Chuankou oilfield have been injected water since 1998, solving water quality inferiority, water injection well plugging, oil well drown out etc. technical problems, the result of increase production in Chuankou oilfield is obvious. Based on on-site experience, the process flow and technology of waterflood development suited for Chuankou oilfield are determined. The technology can improve resource utilization factor and oil recovery factor for ultra-low permeable oilfield.

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What this paper is about

For Chuankou oilfield belongs to ultra-low permeable oilfield, the average air permeability is 0.79 ×10 -3 -0.96 × 10 -3 μ m2, its reservoir physical characteristics is poor, and reservoir pressure is low, there isn′t the nature off-take potential, output descend quickly after fracturing. Chuankou oilfield have been injected water since 1998, solving water quality inferiority, water injection well plugging, oil well drown out etc. technical problems, the result of increase production in Chuankou oilfield is obvious. Based on on-site experience, the process flow and technology of waterflood development suited for Chuankou oilfield are determined. The technology can improve resource utilization factor and oil recovery factor for ultra-low permeable oilfield.

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Available abstract

For Chuankou oilfield belongs to ultra-low permeable oilfield, the average air permeability is 0.79 ×10 -3 -0.96 × 10 -3 μ m2, its reservoir physical characteristics is poor, and reservoir pressure is low, there isn′t the nature off-take potential, output descend quickly after fracturing. Chuankou oilfield have been injected water since 1998, solving water quality inferiority, water injection well plugging, oil well drown out etc. technical problems, the result of increase production in Chuankou oilfield is obvious. Based on on-site experience, the process flow and technology of waterflood development suited for Chuankou oilfield are determined. The technology can improve resource utilization factor and oil recovery factor for ultra-low permeable oilfield.

Key concepts: Petroleum engineering, Geology, Water injection (oil production), Permeability (electromagnetism), Oil production, Petroleum reservoir, Reservoir engineering, Petroleum

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PRACTICE AND COGNITION OF WATERFLOOD DEVELOPMENT IN CHANG 6 RESERVOIR OF CHUANKOU OILFIELD — Research Paper | ScholarLens