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→Near wellbore restrictions
==Near wellbore restrictions==
==Near wellbore restrictions==
[[file:production-problems_fig2.png|thumb|{{figure number|2}}Effect of partial penetration on flowing pressure.]]
[[file:production-problems_fig2.png|thumb|300px|{{figure number|2}}Effect of partial penetration on flowing pressure.]]
Restrictions can occur in the formation or within the wellbore that can cause a decrease in oil or gas production. These restrictions are a result of changes in the formation or fluid properties around the wellbore, chemical reactions within the formation or the wellbore, mechanical problems, or inadequate completion techniques.
Restrictions can occur in the formation or within the wellbore that can cause a decrease in oil or gas production. These restrictions are a result of changes in the formation or fluid properties around the wellbore, chemical reactions within the formation or the wellbore, mechanical problems, or inadequate completion techniques.