Key technology and application of surface drilling in shallow extended reach well
In offshore oil drilling operations,surface drilling is the cornerstone of a well and bears the important responsibility of establishing a wellhead.However,the geological layers on the surface are mostly loose mud and sandy mudstone,with weak cementing and loose formations,which are prone to wellbore collapse and pose a high risk of stuck drilling.This paper takes the complex situation of surface stuck drilling in a certain exploration well in the eastern South China Sea as an example,When conventional treatment methods are ineffective,the stuck drilling is successfully resolved by flushing the buried drilling tools with small drilling tools,providing a new technical approach for dealing with surface stuck drilling.
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