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3. The wedge is inserted into the wiper rubber - rubber disk with a hole, which wipes oil and wax from the pipe during lifting.
4. Funnel Tubing - is cut off at an angle coupling, which simultaneously serves as a protector of the last thread of the pipe, and an indication that pipes are not cut short when lifting, as well as to ensure the normal approach of geophysical instrumentation tubing.
5. Drill pipes - it is heavier pipe thread with a wide pitch used in the drilling and fishing operations.
6. Collars are mainly used in drilling for creating additional weight on bit to increase its productivity trudnorazburivaemyh rocks.
7. Every time you trigger measurements
etsya each NCB to determine the total depth of the descent, taking into account the difference in the height of the rotary table.
8. Templating is used before descending to ensure the orifice of tubing and cleaning of foreign objects.
9. Depending on the specific situation with a combination of fishing operations fishing tools can be very diverse, from Spears to strongest magnet.
10.Truby may fall into the hole as a result of breaking load on a thread or by unscrewing the thread.
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