Abstract
In order to develop marginal oil reservoir and save drilling cost,since 2006 Shengli Oilfield began to do research of slim hole drilling technology. After a summary trial of 13 wells in Shengtuo area, Analysis the existence of technical difficulties and solutions of slimhole. Preliminary formed a set of suitable technology for Shengli oil field, especially the slim hole drilling in Shengtuo area, The average penetration rate reached 18.39m/h, The average drilling period is 10.69d. The experience provides reference to the same kind of wells in shengli oilfield.
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