| 摘要 |
FIELD: well operation and maintenance equipment, particularly devices to supply flexible pipes necessary for downhole operations, namely well flushing, hydrate and paraffin plug removal and so on. ^ SUBSTANCE: flexible pipe supply device comprises pole 1, carriage with conveyer installed on the pole, carriage drive and carriage stop means, which fixes the carriage in different positions and provided with power cylinders 5. Working cavities of power cylinders 5 are connected with pressure pipeline 6. Power cylinder rods 7 are connected with rests 8 cooperating with support members 9 of the pole 1. Valve 10 adapted to close pressure pipeline 6 of power cylinders 5 is installed on the carriage. The valve has handle 11 provided with roller 12 cooperating with followers 13 installed on the pole and spaced apart a distance exceeding roller 12 diameter, at intervals corresponding to distance between carriage stop positions. ^ EFFECT: provision of stop mechanism action as carriage reaches predetermined position and increased reliability of carriage fixation in above position. ^ 3 cl, 6 dwg |
