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Contents
Water flood technique is widely used in the development of oilfields in
China. 87% of its reserves is developed by water injection. Now most of
oilfields come into the stage of development with high water cut, the
average water content over all oilfields in the country has reached 81.4%.
Long practices demonstrate, that after the oilfields were put in water
injection, the physical properties of reservoirs undergo great changes,
which are dependent on different properties of reservoirs and injected
water. The problems associated with determination of remaining oil distribution
by well logging become complicated due to the changes in oil formation
in the water flood process. This book contains 64 papers on these studies
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