It’s all known that natural fissure in the low - porosity
- and - permeability - zone pay the fairy important role to
the permeability of reservoir. In order to make the best use of
the natural fissure in the water - injection - recovery of the
oilfield , especially to develop the putting - into - operation
work with a clear aim after fracturing in the low - porosity -
and - premeability - zone , and to enhance the effect of
fracturing in the low porosity and permeability zont , it’s
necessary to carefully study the controlling factor of natural
fissure in the zone ,and clearly know the regular patern of the
distribution ;so as to attend good and avoid harm. Considering
of this ,we set the natural fissure in the super - low porosity
and permeability zoen in the deep interval of Anpeng oilfield
as a research object , and made a fairy deep study to the
controling factor , we hope through this study to set a
reference for other natural fissure controlling factor of all
kinds of sand and silt sections.
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