INSTALLATION WITH CONTINUOUS PIPE TO SERVICE WELLS, CONTINUOUS PIPE AND PROCESS OF ITS MANUFACTURE Russian patent published in 2002 - IPC

FIELD: extraction of mineral resources, predominantly, liquid and gaseous products. SUBSTANCE: invention can be used to conduct various technological operations in oil, gas and other wells, their irrigation, cleaning, repair, isolation, investigation as well as exploitation. Vehicle carries drum with hollow shaft, positioner, aid guiding feeding mechanism to axis of well. Catching dies of feeding mechanism are placed in blocks for movement with regard to pipe limited radially and are spring-loaded with springy members. Rollers of blocks interact with guides, one of which being moved under action of drive. Continuous pipe is manufactured from billets-strips and has longitudinal and lateral welds with internal fin. Lateral welds are arranged at angle of 10 degrees with axis of pipe. Strength of longitudinal weld amounts to at least 90% of strength of starting billet-strip. Description presents technological characteristics of manufacture of continuous pipe and various variants of its employment. EFFECT: raised reliability of operation of feeding mechanism, expanded functional capabilities of installation, improved operational characteristics of continuous pipe, stability of its structural parameters, simplified technology of its manufacture and repair, reduced time for manufacture of pipe. 29 cl, 22 dwg