There is complex structure in Baimiao gas field with
greatly varied reservoir formatim and low production test
efficiency. After studying reservoir sedimentary microfacies
affecting production test efficiency of Bainmiao gas field ,this
paper draws the conclusion that the maior water channel
sandstone with good property and high productivity in
sublacustrine middle fan and xaial gravity in Baimiao gas field
Es3 section can be regarded as main developing series of
strata. According to the conclusion , after focusing on the
study , search and application of water sandstone during
development ,the good effect and unexpected progress in test
production to difficult developed reservoir have been obtained
which give reliable evidevce for next regular development .
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