185 Oil and gas engineering and technologies

Master

Technologies for preventing sticking of the drill string in the reservoirs of unstable rocks

Pikalov, B.S.

The work is dedicated to the most pressing problem - technologies for eliminating sticking in the drilling column, investigating the causes and inheritance of sticking in the drilling process, and the designated place for sticking. And also an analysis of methods for eliminating stuckness of the drill string in the reservoirs of unstable rocks.
In the first section, an analysis of the daily supply process was carried out in case of accidents that occur during the drilling process, with special attention paid to the sticking of the drill string itself.
The section has identified the mechanisms and causes of seizures in the minds of unstable breeds. Existing methods for preventing stuckness of the drill string have been analyzed. In another section, methods for selecting the correct location for gripping are discussed. Methods for eliminating seizure have been studied: physical-chemical, hydraulic and mechanical methods.
The approach to avoiding sticking of the drill string in the reservoirs of unstable rocks has been broken down In the third section, experimental research was carried out on the butt of the Kolkov oil and gas condensate field, the drilling mode and the type of flushing area were primed to prevent sticking of the drill string. The main steps have been taken to protect the waste from the drilling process.

прихват

бурильна колона

аварії

drilling

sticking

drill string

accidents