RU2368763C2 - Cumulative perforator module - Google Patents

Abstract

FIELD: oil industry.

SUBSTANCE: invention refers to oil producing devices and can be used as a part of cumulative perforators. Cumulative perforator module consists of frame 1 and cumulative charges 2 located therein. At location points of the end face part of cumulative charges 2 there made in frame 1 are holes 3 with diametrical protrusions 4, and on external surface of each housing of cumulative charge 2 there provided is end face annular projecting edge 5 and projecting edge 6 located at a distance from the end face annular projecting edge, thus forming groove 7 between them, the width of which is determined by wall thickness of frame 1. In each annular protruding edge 6 located close to the middle part of the housing of cumulative charge 2 there made are flats 8 located in diametrically opposite directions. Distance between diametrically located protrusions 4 of the frame is equal or bigger than the distance between planes of flats 8, but not more than diametre of groove 7.

EFFECT: improving processability and simplifying the design of cumulative perforator module.

2 dwg

Description

The invention relates to devices for oil production and can be used as part of cumulative perforators.

The closest analogue is the cumulative punch module, containing the frame and the cumulative charges placed therein (see, for example, the description of the invention to patent US 4747201, IPC 4 B23P 19/04, publication date 1988.05.31).

The disadvantage of the closest analogue is not sufficiently high manufacturability and the complexity of installing cumulative charges in the holes of the frame, due to the fixation of cumulative charges in the holes of the frame by means of additional clamps.

The technical result of the claimed solution is to provide improved manufacturability and simplification of the design of the module of the cumulative hammer drill.

The essence of the technical solution is characterized by the fact that in the places where the end part of the cumulative charges is located in the frame, holes with diametrically spaced protrusions are made, and on the outer surface of each housing of the cumulative charge there are made an end ring and an annular collar spaced from it with the formation of a groove between them, the width of which is determined by the thickness frame walls, in each ring collar located diametrically located closer to the middle part of the body of the cumulative charge of the annular flange on the contrary, the distance between the diametrically located protrusions of the frame is equal to or greater than the distance between the planes of the flats, but not more than the diameter of the groove.

The essence of the technical solution is illustrated by drawings, where:

figure 1 shows a view of the frame with one cumulative charge;

figure 2 shows a view of the frame from the installation of the cumulative charge.

The cumulative punch module contains a frame 1 and cumulative charges 2 placed therein. At the locations of the end part of the cumulative charges 2, holes 3 with diametrically spaced projections 4 are made in the frame 1, and an end face and spaced apart from it on the external surface of each housing of the cumulative charge 2 annular flange 5 and 6 with the formation of a groove 7 between them, the width of which is determined by the wall thickness of the frame 1. In each located closer to the middle part of the body of the cumulative charge 2 annular drill Tick 6 is made flats 8, located diametrically opposite. The distance between the diametrically located protrusions 4 of the frame is equal to or greater than the distance between the planes of the flats 8, but not more than the diameter of the groove 7. The relations between the above dimensions are selected from the condition of elasticity or hardness of the material of the protrusions 4 and the frame 1. At least a tight fit of the protrusions 4 in the groove 7 is provided with a friction force between them sufficient to fix the position of the cumulative charge 2 relative to the frame 1.

The assembly of the cumulative puncher module is carried out by introducing the cumulative charge body 2 into the hole 3 so that the protrusions 4 move along the flats 8 to contact the annular collar 5 and turn in any direction until the cumulative charge 2 is fixed in the hole 3 of the frame 1. The assembly is simplified by the implementation in the proposed module of the cumulative punch only two movements of the cumulative charge 2 - translational and rotational relative to the frame 1.

Claims (1)

Cumulative punch module, comprising a frame and cumulative charges placed therein, characterized in that at the locations of the end part of the cumulative charges in the frame holes are made with diametrically spaced protrusions, and on the outer surface of each cumulative charge housing there is an end annular and an annular collar spaced from it with the formation of a groove between them, the width of which is determined by the wall thickness of the frame, in each located closer to the middle part of the body of the cumulative charge tsevom collar dihedron formed, diametrically opposed, the distance between diametrically spaced protrusions frame is equal to or greater than the distance between the planes of the flats, but not more than the diameter of the groove.

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