15.12.2008 Successful application of water shut off technology
25.12.2008 15:59
In October 2008 were successfully conducted joint works LLC "Gazprom dobycha Orenburg" and "BURINTEKH", Ltd on implementation of new water shut off technology.
The well N 3054 of Orenburg oil and gas condensate deposit since 1998 was transferred to control stock because of drowning P1-P3 of sakmar suite and because of behind-the-casing inflow to gas discharging bed.
In the process of workover were made the following operations:
- Milling of casing section 139,7mm with expandable mill FKR - 140 in interval (1710-1714,3m).
- Reaming of open hole with underreamer RR-115/226 in milled interval.
- Placement of cement bridge in above said interval adding expansion chemical agents.
After workover operations with the use of above described technology the well N 3054 of Orenburg oil and gas condensate deposit was put in with water-free production rate 96 thousands cubic meters per day against production rate before transfer to control stock 1 thousand cubic meters per day.
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