RU143434U1 - DEVICE FOR INSTALLING INSTRUMENTS ON THE OUTDOOR PIPE SURFACE - Google Patents

Abstract

A device for mounting autonomous measuring instruments on elevator pipes, including tubing, characterized in that a smaller pipe sector is welded on the outer surface of the pipe and with holes at the ends drilled at an angle different from 90 ° to the axis of the tubing for installation fixing bolts, while the ratio of the inner diameter of the pipe sector to the diameter of an autonomous measuring device is more than 1.2.

Description

The utility model relates to the field of the oil and gas industry and can be used in well research to obtain information about the pressure and temperature of the fluid in the annulus of the well using stand-alone measuring instruments launched on tubing.

A device for measuring annular pressure (St. RU No. 290494 E21B 47/00, publ. 04/27/2003, bull. No. 12). The device comprises a pipe with a through channel, upper and lower adapters, removable covers and tube-containers placed parallel to the outside of the main pipe for installing and fixing autonomous measuring instruments.

The disadvantage of this device is that the threaded connections of the upper and lower adapters are load-bearing, and the body of the device bears mechanical loads and experiences pressure drops in the well. For this reason, periodic technical control is required, including such expensive measures as checking threads with gauges, crimping, and flaw detection.

A device for mounting stand-alone measuring instruments on elevator pipes (St. RU No. 22503, E21B 47/01, publ. 10.04.2002, bull. No. 10). The device includes tubing, a cylindrical washer with an instrument fastening element in the tube make-up unit, two metal longitudinal strips welded parallel to each other on the outer surface of the pipe, at a distance exceeding the diameter of the device and having holes on the plane for mounting fasteners.

The disadvantage of this device is that autonomous measuring devices are not completely protected from damage, and the strength characteristics of the plates are insufficient so as not to get dents or to lose stability during the descent of the tubing string.

The technical task of the proposed utility model is to simplify the design of the device for installing instruments for measuring downhole parameters, increasing durability and reliability.

The technical result achieved when using the utility model is to reduce the need for technical control, the overall reduction in costs, compactness on the outer diameter of the device, the strength of the device and the complete protection of the devices from damage.

The technical result is achieved by the fact that in the device for installing autonomous measuring instruments on the outer surface of the elevator pipe, containing a container fixed to the pipe by welding, the autonomous measuring devices placed inside it, the container is a sector of a pipe of a smaller diameter with a length greater than the installed device, and holes at the ends drilled at an angle different from 90 degrees to the axis of the elevator pipes for installing fasteners, while the ratio of the inner diameter a sector of the pipe to the diameter of the measuring device more autonomous 1, 2.

The proposed device can be installed anywhere on the height of the layout of the tubing, depending on production needs, with the implementation of the purpose and the achievement of a technical result.

In FIG. 1 - shows a device in section;

In FIG. 2 - shows a section aa.

A device for installing stand-alone measuring instruments on the outer surface of the pipe (Fig. 1) contains a tubing 1, a container 2, holes 3, a fastener 4 (Fig. 2) and a cavity 5 (Fig. 1)

The utility model works as follows. Before the equipment is lowered into the well, autonomous measuring instruments are installed. In the lower hole 3 (Fig. 1) of the container 2, a fastener 4 is installed (Fig. 2). In the cavity 5 (Fig. 1) formed between the container 2 and the pipe 1, the device is installed, while the container protects the entire surface of the autonomous measuring device, and gravity presses the device against the wall of the sector, eliminating the free location inside the sector. In the upper hole 3 install the fastener 4 (Fig. 2). The installation of the fastener 4 at an angle different from 90 ° to the axis of the tubing ensures locking fasteners and the health of the product as a whole. The tubing string with devices installed on its outer surface is lowered into the well to a predetermined depth.

Thus, the proposed design of the device allows to increase the reliability and durability of the device by protecting the entire surface of an autonomous measuring device, eliminating spontaneous flap of nuts and high strength characteristics of the sector.

Claims (1)

A device for mounting autonomous measuring instruments on elevator pipes, including tubing, characterized in that a smaller pipe sector is welded on the outer surface of the pipe and with holes at the ends drilled at an angle different from 90 ° to the axis of the tubing for installation fixing bolts, while the ratio of the inner diameter of the pipe sector to the diameter of an autonomous measuring device is more than 1.2.