FIELD: technological processes.
SUBSTANCE: group of inventions relates to long-coiled tubable flexible pipes, namely to coiled tubing or flexible tubing pipes. Element of a lengthy flexible column includes at least two closed channels united in a single structure. Closed channels are interconnected by a connecting partition formed by welding the junctions of the walls of the closed channels with each other. At the same time, at least two closed channels and a connecting partition are formed from two separate strips by the method of their profiling from the center by buckling, followed by welding the opposite longitudinal edges of the two strips to each other. At the same time the connecting partition is made with holes and has a double thickness of the strip.
EFFECT: increase of technological operations in wells.
9 cl, 15 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ELEMENT OF LONG-DIMENSIONAL FLEXIBLE COLUMN (OPTIONS) | 2018 |
|
RU2676305C1 |
| LONG FLEXIBLE STRING ELEMENT (VERSIONS) | 2018 |
|
RU2689955C1 |
| ELEMENT OF LONG-LENGTH FLEXIBLE (VERSIONS) | 2018 |
|
RU2689945C1 |
| MULTI-CHANNEL DEMOUNTABLE LONG-LENGTH FLEXIBLE COLUMN | 2016 |
|
RU2644366C1 |
| OIL-WELL SUCKER-ROD PUMPING UNIT (VERSIONS) | 2014 |
|
RU2550842C1 |
| DETACHABLE JOINT OF LONG-LENGTH FLEXIBLE PIPE | 2014 |
|
RU2550992C1 |
| DOWNHOLE PUMP UNIT | 2014 |
|
RU2559206C1 |
| DOWNHOLE PUMP | 2014 |
|
RU2549937C1 |
| COUPLING THREADED CONNECTION (OPTIONS) | 2021 |
|
RU2767259C1 |
| BOREHOLE PUMP UNIT | 2012 |
|
RU2506456C1 |
