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
Development of devices in the modernized technology of drilling and blasting operations for joint mining of ore and ornamental granite in the contours of a common pit
2001 S. K. Rubtsov
Expert system of seismic safety of blasting operations
2001 V. A. Belin, D. K. Potresov, N. I. Bukhanova
Fundamentals of Aseptic Baring of Subglacial Lake Vostok
2001 B. B. Kudryashov, A. N. Dmitriev, N. I. Vasilev