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R Running Tool is a service tool that is designed to run or set the R and RN mandrels. The tool works on two modes: namely selective mode and non-selective mode. In selective mode, the devices run through landing nipples whereas in the non-selective mode the lock mandrel will locate the corresponding nipple itself.
The R Running tools consist of 12 components:
2. Inner Sleeve
5. Spring Housing
6. Core Spring
7. Dog Retainer
8. Dog Spring
9. Split Ring
10. Locator Dog (2)
11. Lug Segment (2)
12. Retainer Dog (2)
Pin corresponding R / RN Lock and equalizing assembly onto running tool using brass shear pin (or shear pin of desired material).
Lower tools into wellbore and run to desired depth, stopping just prior to landing nipple it is recommended to take static and pull weights, set down and jar packing into the seal bore of the nipple until there either the no-go (RN ASSY) or the keys (R ASSY) have located, properly.
Jar down to shear top pin and lock keys in place with expander mandrel of X-Lock.
Jar up to shear bottom pin and remove toolstring from wellbore.