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
Similar articles
Development of an effective method of dust suppression for mass explosions in mining pits
2001 G. G. Karkashadze, I. V. Novikov
Theoretical basis of an express method of explosive fracture assessment based on seismic signal parameters
2001 S. V. Lukichev
Development of water-towering way of breaking wells in drilling and blasting operations at mining open pits
2001 G. G. Karkashadze, N. O. Taran