RU134212U1 - PIPE TEMPLATE WITH HIGH SEAL THREADED CONNECTIONS - Google Patents

Abstract

A template for pipes with highly tight threaded joints, containing a cylindrical body with spiral screw grooves made on its outer surface, while the end sections of the body are made in the form of shanks of a smaller diameter with a notch in the form of a "ruff" on which rubber rounded safety tips are placed, and the joint of the body with the shanks is made without forming a gap between them.

Description

The utility model relates to the oil and gas industry, and in particular to devices for determining the passage in pipes lowered into the well, in particular, to templates for pipes with highly tight, so-called “premium”, threaded joints.

Known patterns for determining the passage in the pipes lowered into the well, including a cylindrical body [RD 39-1-1151-84 Technical requirements for the sorting of tubing. - M.: All-Russian Research Institute for the Development and Operation of Oilfield Pipes. - appendices, RD 39-0147009-23-87 Unified rules for conducting repair work in wells. - M: VNIIKRneft, 1987. - P.17-18].

The disadvantage of the used templates is the high probability of damage to the sealing belts (the so-called "shoulders") in the coupling part of the tubing.

The task of creating the device is to increase the reliability of the patterning of pipes lowered into the well, especially of foreign production, for example, pipes with premium threads such as TMK or FMT, without damaging the sealing bands in the sleeve part of the pipes.

Achievable technical result consists in maintaining the integrity of the sealing bands in the sleeve part of the pipes without mechanical damage during the template process of pipes being lowered into the well.

The stated task and the technical result are achieved in that the template for high-tight “premium” threaded joints contains a cylindrical body with spiral screw grooves made on its outer surface, the end sections of the body are made in the form of shanks of a smaller diameter with a notch in the form of a “ruff”, on which rubber rounded safety tips are placed, while the joint of the body with the shanks is made without creating a gap between them.

In FIG. Shows a general view of the template for determining the passage in the pipes.

The template contains a cylindrical housing 1 with spiral screw grooves made on its outer surface 2. The end sections of the housing 1 are made in the form of shanks 3 of smaller diameter with a notch in the form of a "ruff" 5, on which rubber rounded safety tips are placed 4. The articulation of the housing 1 sec shanks 3 are made without a gap between them.

The template works as follows.

The tubing lowered into the well is placed on the pipe rack. It holds the lid of the safety caps from the coupling part of the pipe. The threads freed from the safety cap in the sleeve part of the pipe are cleaned of preservation grease. Threaded grease is applied to the thread, that is, grease for screwing pipes. The template is neatly, with hands, inserted into the descent tube. At the same time, they try to avoid touching the safety belt with the template. To prevent possible mechanical damage to the safety belt of the pipe at the end sections of the template, on the shanks 3, rubber rounded safety tips 4 are made.

The descent pipe with the help of the elevator is lifted to the length of the template and the template, having passed the entire pipe, is removed from it. After that, the next pipe is lowered into the well.

Due to the presence on the case 1 of the template of spiral screw grooves 2, cleaning and removal of mechanical impurities, dirt, metal shavings and others from the outer surface of the case 1 of the template occurs.

Due to the presence on the end sections of the housing 1 of the template of the shanks 3, it is possible to place rubber rounded safety tips 4 on them, preventing mechanical damage to the sealing belts of the pipes lowered into the well, without protruding beyond the overall dimensions of the template, and the presence on the outer surface of the shanks 4 notches in the form "Ruff" 5 provides reliable fastening of rubber rounded safety tips 4 on the shank 3, without pulling them off the template in the template process pipes.

The absence of a gap in the joint of the housing 1 with the shanks 3 prevents mechanical impurities from entering it, protecting the threads in the coupling part of the pipe from mechanical damage after removing the safety caps from it.

An example implementation of a utility model.

For a pipe with a diameter of 48 mm, the outer diameter of the template is 37.9 mm, for a pipe with a diameter of 73 mm - 56.6 mm, for a pipe with a diameter of 114 mm - 97.1 mm. The length of the template for all pipes corresponds to 600 mm.

The proposed template provides reliable patterning of tubing, in particular of foreign production with high-tight premium threaded connections of the TMK or FMT type, used in gas wells and oil wells with a high gas factor.

After templating 5000 m of descent pipes, it is necessary to check the template for compliance with the dimensions.

Claims (1)

A template for pipes with highly tight threaded joints, containing a cylindrical body with spiral screw grooves made on its outer surface, while the end sections of the body are made in the form of shanks of a smaller diameter with a notch in the form of a "ruff" on which rubber rounded safety tips are placed, and the joint of the body with the shanks is made without forming a gap between them.

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