LASER JETTER PIPE TOOL

Abstract

The present invention addresses to a laser blasting pipe for heating a scale removal treatment to be descended by electric cable, and a recirculation system with the objective of heating the scale removal solution, inside the production string during the time the reaction is taking place, in order to guarantee its efficiency. The laser blast pipe is a device similar to a metallic cylinder that can travel through the interior of a production string, being descended by gravity itself, and ascended by the action of the cable, being able to recirculate and heat the fluid. This heating would have the function of compensating the heat loss of the removal solution due to the heat exchange of the riser with the seabed, and maintaining the temperature of the reaction inside the production line in an optimal range of yield, thus aiming at increasing the reaction efficiency and the reduction of the time required for the removal of scale in the production string of the well.

Claims

1. A LASER BLASTING PIPE TOOL, characterized in that it comprises, in an arrangement of interconnections: a connection module with electrical cables (A); a fluid inlet module (B); a pumping module (C); a laser heating module (D); a temperature sensor module (E); and a blasting tip (F).

2. THE LASER BLASTING PIPE TOOL according to claim 1, characterized in that the fluid inlet module (B) performs the recirculation of the scale removal fluid.

3. THE LASER BLASTING PIPE TOOL according to claim 1, characterized in that the temperature sensor module (E) informs and controls the temperature of the fluid.

4. THE LASER BLASTING PIPE TOOL according to claim 1, characterized in that the tool is descended by gravity and ascended by the action of a cable.

5. THE LASER BLASTING PIPE TOOL, according to claim 1, characterized in that the tool is cylindrical and metallic.

Description

BRIEF DESCRIPTION OF DRAWINGS

[0014] The present invention will be described in more detail below, with reference to the attached figures which, in a schematic form and not limiting the inventive scope, represent examples thereof. In the drawings, there are:

[0015] FIG. 1 schematically illustrating the laser blasting pipe tool consisting of the electrical cable connection module (A), fluid inlet module (B), pumping module (C), laser heating module (D), temperature sensor module (E) and tip for jetting fluid (F);

[0016] FIG. 2 illustrating a production string (1) inside the well, connected to a wet Christmas tree (8) which is connected to a manifold (3) through the production line (4), which in turn is connected to the stationary production unit through the second section of the production line (7).

DETAILED DESCRIPTION OF THE INVENTION

[0017] Preliminarily, it is highlighted that the following description will start from preferred embodiments of the invention. As will be apparent to any technician skilled on the subject, however, that the invention is not limited to these particular embodiments.

[0018] The Laser Blasting Pipe (10) is a cylindrical device designed to be used initially for the purpose of cleaning the interior of production pipes such as the production string (1). Said equipment can travel through the interior of a production string (1), being descended by cable by gravity itself, and ascended by the action of the cable, being able to recirculate and heat the fluid that is around inside the production string (1), along the length of the scaled region, in order to maintain the temperature of the reaction of the chelators to remove the scale. The piece of equipment (10) consists of a modular cylindrical device, wherein the six modules are interconnected forming the laser blast pipe (10), as can be seen in the schematic view of FIG. 1, wherein the first module is the connection with an electrical cable (A) that supplies energy necessary for the operation of the laser diodes. The laser heating module (D) is provided with laser diodes that generate the laser, and fiber optic cables will be used to drive the laser from the laser diodes to the collimators, which will be used to release laser radiation into the fluid for heating the fluid through the laser blast pipe (10). The fluid inlet module (B) is where scale removal solutions can enter from the annular space between the inner wall of the production string into the tool, in order to be heated by the Laser Blast Pipe. The pumping module (C) will displace the scale removal fluid inside the tool. The temperature sensor module (E) aims at monitoring, informing and controlling the temperature of the fluid, and finally the blasting tip (F) through which the heated fluid inside the tool will be pumped back into the string in the position below the tool. The fluid flow can be directed to subsea pieces of equipment, and can be directed to operations to remove scale from production strings and/or even in squeeze operations to inhibit both sandstone and carbonate reservoirs, such as the pre-salt layer.

[0019] Several variations focusing on the protection scope of this application are allowed. Thus, there is reinforced the fact that the present invention is not limited to the particular configurations and embodiments described above.