Specifics of drilling flowing wells in intervals of unstable formations
About authors
- 1 — St. Petersburg State Mining Institute
- 2 — St. Petersburg State Mining Institute
- 3 — St. Petersburg State Mining Institute
- 4 — St. Petersburg State Mining Institute
Abstract
One of the most common types of geological complications arising when drilling wells through permafrost rocks is the violation of wellbore integrity due to changes in the natural stress state of the surrounding massif. Securing the wellbore walls with casing requires switching to a smaller drilling diameter, and the use of grouting materials for grouting fractured rocks is ineffective, since cracks are usually filled with ice, preventing the penetration of grouting material into them.
Область исследования:
(Archived) Without section
Funding:
None
Similar articles
Issues of fracture research in drilling explosive boreholes
2001 R. I. Sukhov, Yu. M. Lebedkin, A. V. Tymchur
Fracture energy capacity as a criterion for stability of building clay backfill
2001 L. K. Gorshkov, S. V. Naumov
Theoretical basis of an express method of explosive fracture assessment based on seismic signal parameters
2001 S. V. Lukichev