Self-contained portable unit for steam generation and injection by means of injector wellhead hanger of coiled jacketed capillary tubing with closed circuit and procedure for its operations in oil wells

A self-contained portable unit for steam generation and injection for operation in oil wells, comprising:

• an injector of coiled jacketed capillary tubing with a closed circuit;
• a portable equipment for injection and dewaxing of heated fluids mounted on a hauler, comprising:
• a first heat exchanger;
• a water tank;
• a second heat exchange;
• a fluid softener;
• a centrifugal pump;
• a lubricant tank;
• a power engine;
• an electrical power generator;
• a control cabin;
• a steam boiler;
• a reservoir tank;
• a fuel tank;
• a hose reel;
• and
• a hose set comprising two lines of fluid injection, the lines being connected to the injector for making up a closed circuit;
• wherein the injector comprises three modules crowned with a lid, two of which are a first hanger module and a second hanger module and at least one is an injector, said hanger module having-a set of double clamps that support capillary tubing of greater section;
• wherein the injector overlaps the hanger modules and is fixed for steam generation via a hose, and overlapping the injection-type module, an upper hanger module is fixed, which has a smaller capillary and recovers steam from a well, leading the fluid to the injector where it is treated thermally, and from the end of the capillary of the upper hanger module, it is inserted in the tubing, making the closed circuit.