A special tool for preventing the oil well polished rod from bending

Abstract

The utility model discloses a kind of special tools for preventing oil well polished rod from bending, it includes curved groove hair plait hanging ring, hair plait breakage touch device and hair plait breakage self-stop device, curved groove hair plait hanging ring is square board shape, the center part is provided with polished rod hole of passing through polished rod, two hair plait guide grooves of passing through hair plait are set up on the two sides of polished rod hole, the rotation direction of two hair plait guide grooves is opposite and symmetrically set up, hair plait breakage touch device includes wireless remote control trigger, wireless remote control trigger is electrically connected by wire and the bottom end joint of hair plait, remote control trigger emits stop signal to oil well distribution control box, hair plait breakage self-stop device includes wireless remote control switch and relay of stringing, wireless remote control switch is used to receive the stop signal of wireless remote control trigger emission after hair plait breakage, and power supply is provided by relay. The utility model solves the problem of polished rod bending caused by hair plait breakage.

Description

Technical Field

[0001] This utility model relates to the field of special tools for oilfield maintenance, and in particular to a special tool for preventing oil well polished rods from bending. Background Technology

[0002] Currently, in oil extraction, the polished rod of the pumping unit in the well is connected to the downhole sucker rod and then to the braid via a suspension cable and square clamp, thus enabling the pumping unit to drive the downhole pump in reciprocating motion. The braid bears the weight (8-16 tons) of the downhole sucker rod and the fluid inside the tubing, and during long-term high-load operation, braid breakage frequently occurs.

[0003] When the oil well's braided rod breaks off, it causes the polished rod to bend and break under unidirectional stress, requiring the well to be shut down for replacement. Statistics show that in 2022, the Shuanghe Oilfield Station had to replace 163 wells due to braided rod breakage and resulting polished rod bending, with replacement costs reaching 480,000 yuan.

[0004] Meanwhile, damage to the polished rod of an oil well requires the use of a 25-ton crane for lifting operations, which poses numerous hidden dangers such as long well shutdown time, high repair costs, significant lifting safety risks, and pollution from well venting. Currently, there is no solution at the oil extraction and production site for the problem of polished rod bending caused by broken braids. Utility Model Content

[0005] The purpose of this utility model is to provide a special tool for preventing oil well polished rods from bending, which solves the problem of polished rod bending caused by broken braids.

[0006] To achieve the purpose of this utility model, a special tool for preventing bending of oil well polished rods is provided, which includes a curved groove braided hanging ring, a braided rod breakage triggering device, and a braided rod breakage self-stopping device 8. The curved groove braided hanging ring is square plate-shaped, with a polished rod hole for passing through the polished rod in the center. Two braided rod guide slots for passing through the braid are correspondingly opened on both sides of the polished rod hole. The two braided rod guide slots are arranged symmetrically with opposite rotation directions. The braided rod breakage triggering device includes a wireless remote control trigger, which is electrically connected to the bottom connector of the braided rod through a wire. The remote control trigger transmits a stop signal to the oil well power distribution control box. The braided rod breakage self-stopping device includes a wireless remote control switch and a relay connected in series. The wireless remote control switch is used to receive the stop signal transmitted by the wireless remote control trigger after the braided rod breaks and to provide power to the relay.

[0007] As a preferred technical solution of this utility model, a wireless remote control mounting box is welded onto the curved groove braid hanging ring, and the wireless remote control trigger is installed in the box.

[0008] As a preferred technical solution of this utility model, the braid groove is formed by gas cutting.

[0009] As a preferred embodiment of this utility model, the braid guide groove is an open groove, and the braid is inserted into the bottom of the groove.

[0010] As a preferred embodiment of this utility model, the relay is connected in series with the stop button of the oil well distribution cabinet via a long closed contact.

[0011] As a preferred technical solution of this utility model, the material of the curved groove braid hanging ring is steel plate.

[0012] As a preferred embodiment of this invention, the wire is a copper wire.

[0013] Compared with existing technologies, this invention offers the following advantages: The curved-groove braided hanging ring, a special tool for preventing bending of oil well polished rods, is made from a steel plate of a certain thickness, with braided grooves of opposite rotation directions machined on each. These grooves are machined using gas cutting to create a fixed-arc curve, facilitating the drawing of the braided rod. The braided rod breakage triggering device consists of a thin copper wire and a remote-controlled trigger. The thin copper wire connects the braided rod head to the remote-controlled trigger, which transmits a stop signal to the oil well electrical control box. The braided rod breakage self-stopping device comprises a wireless remote-controlled switch and a relay. The wireless remote-controlled switch receives the stop signal transmitted by the trigger after the braid breaks off and provides power to the series-connected relay. The relay is used to connect a continuously closed contact in series with the stop button on the oil well electrical control cabinet. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the grooved braided hanging ring of the special tool for preventing bending of oil well polished rods according to this utility model; Figure 2 This is a structural diagram of a special tool for preventing bending of oil well polished rods; Figure 3 This is a circuit diagram of a remote-controlled automatic stop device for oil pumping units, which is a self-stopping device for the broken and detached braids of this utility model. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Please see Figures 1-3 This utility model discloses a special tool for preventing bending of oil well polished rods. Installed on the upper part of the polished rod square clamp 7, it includes a curved groove braided hanging ring 1, a braid breakage trigger device, and a braid breakage self-stop device 8. The curved groove braided hanging ring 1 is square-shaped, with a polished rod hole 12 for the polished rod 5 passing through its center. Two braid guide grooves 11 for passing through braids 6 are correspondingly opened on both sides of the polished rod hole 12. The two braid guide grooves 11 have opposite rotation directions and are symmetrically arranged. The braid guide grooves 11 are arc-shaped curved grooves processed by gas cutting. The braid guide grooves 11 are open grooves, and the braids 6 are inserted into the bottom of the open grooves. The curved groove braided hanging ring 1 is made of steel plate. The wire 22 is copper wire. This tool fixes the relative distance between the polished rod 5 and the two braids 6, preventing relative displacement between the polished rod and the other side of the braid 6 after the braids 6 break off. After the braid 6 breaks off, the curved braid hanging ring 1 can fix the bare rod 6 to the braid 5 on the other side, preventing the bare rod from bending.

[0020] The braid disconnection triggering device includes a wireless remote control trigger 2, which is electrically connected to the bottom connector 61 of the braid 6 via a wire 22. The wireless remote control trigger 2 transmits a stop signal to the oil well power distribution control box. The braid disconnection self-stopping device 8 includes a wireless remote control switch and a series-connected relay 81. The wireless remote control switch receives the stop signal transmitted by the wireless remote control trigger 2 after the braid disconnects and provides power through the relay 81. A wireless remote control mounting box is welded to the curved braid hanging ring 1, and the wireless remote control trigger 2 is installed in the mounting box. The relay 81 is used to connect the normally closed contact in series with the stop button of the oil well power distribution cabinet. After the braid disconnection triggering device disconnects on either side of the braid 6, it triggers the wireless remote control trigger 2 to transmit a stop signal. After receiving the remote control signal, the braid disconnection self-stopping device 8 supplies power to the relay 81 to activate it, and the normally closed contact connected in series with the stop button opens, realizing automatic shutdown of the oil well.

[0021] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A special tool for preventing bending of oil well polished rods, characterized in that, It includes a curved groove braid hanging ring (1), a braid breakage triggering device, and a braid breakage self-stopping device (8). The curved groove braid hanging ring (1) is square plate-shaped, with a light rod hole (12) for passing through a light rod (5) in the center. Two braid guide slots (11) for passing through braids (6) are opened on both sides of the light rod hole (12). The two braid guide slots (11) are arranged with opposite rotation directions and symmetrical arrangement. The braid breakage triggering device includes a wireless remote control trigger (2). The wireless remote control trigger (2) is electrically connected to the bottom connector of the braid (6) through a wire. The wireless remote control trigger (2) sends a stop signal to the oil well power distribution control box. The braid breakage self-stopping device (8) includes a wireless remote control switch and a series relay (81). The wireless remote control switch receives the stop signal sent by the wireless remote control trigger (2) after the braid breaks and triggers the self-stopping action, and provides power through the relay (81).

2. The special tool for preventing bending of oil well polished rods according to claim 1, characterized in that, The wireless remote control mounting box (21) is welded onto the grooved braided hanging ring (1), and the wireless remote control trigger (2) is installed into the mounting box.

3. The special tool for preventing bending of oil well polished rods according to claim 1, characterized in that, The braided groove (11) is formed by gas cutting.

4. A special tool for preventing bending of oil well polished rods according to claim 1, characterized in that, The braided groove (11) is an open groove, and the braid (6) is inserted into the bottom of the open groove.

5. A special tool for preventing bending of oil well polished rods according to claim 1, characterized in that, The relay (81) is connected in series with the stop button of the oil well distribution cabinet via a long closed contact.

6. A special tool for preventing bending of oil well polished rods according to claim 1, characterized in that, The material of the grooved braided hanging ring (1) is steel plate.

7. A special tool for preventing bending of oil well polished rods according to claim 1, characterized in that, The wire (22) is made of copper wire.

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