RU166887U1 - DRILL FILTER REMOVAL DEVICE - Google Patents

Abstract

A device for extracting a filter from a borehole containing a cone plug that performs the function of a load, a lifting ring is installed in the upper part of the conical plug for securing the cable, in the lower part of the conical plug there are gripping plates attached to the body of the conical plug with hinges, and leaf springs, fixed on the gripping plates and on the body of the conical plug, characterized in that a through hole is made in the center of the conical plug, a rod is installed in the through hole, the lower part of the stem is ramie connected by means of arms with gripper plates, the keeper rigging rigging ring perpendicular to the axis of the ring a slot for installation dismantling rod, the bottom of the conical tube slots are located to accommodate levers.

Description

The utility model relates to drilling equipment and can be used when replacing filter columns of boreholes.

A device is known for extracting casing from wells, including a pump, an injection sleeve of which is connected to the cavity of the casing, a lift and a plug for sealing the top of the casing, a piston reflector connected via a rod to the lift (A.S. 599042 USSR: IPC E21B23 / 00 Casing Extraction Device).

The disadvantage of this device is that when it is used, hydraulic fracturing is possible and there are significant losses of flushing fluid when removing the pipes (filter) from the well.

The closest analogue is a device for extracting a filter from a borehole (US Pat. 143008 Russian Federation: IPC Е21В31 / 20. Device for extracting a filter from a borehole, publ. 07/10/2014), including a cone plug, rigging is located in the upper part of the cone plug a ring for securing the cable, in the lower part of the conical plug there are gripping plates attached to the body of the conical plug using hinges, and leaf springs mounted on the gripping plates and on the body of the conical plug.

The disadvantage of this installation is the inability to remove the gripper from the filter.

The technical task of the utility model is to create a mechanism that makes it easy to remove the gripper from the filter without damaging both the gripping device and the filter.

The technical result is achieved by the fact that the device for extracting the filter from the borehole is a conical plug that performs the function of a load, a lifting ring is installed in the upper part of the conical plug to secure the cable, and gripper plates are attached to the body of the conical plug in the lower part of the conical plug using hinges and leaf springs mounted on gripping plates and on the body of the cone plug, a through hole is made in the center of the cone plug, a through hole is installed the rod, the lower part of the rod is hinged by levers to the gripping plates, a slot is made in the center of the lifting ring perpendicular to the axis of the lifting ring for installing the dismantling rod, grooves for placing the levers are located in the lower part of the conical plug.

The design of a device for extracting a filter from a borehole is illustrated in FIG. 1, which shows a top view of a device for extracting a filter from a borehole and section AA.

A device for extracting a filter from a borehole consists of a conical plug 1, which performs the function of a load, in the upper part of which there is a lifting ring 2 for securing the cable, in the lower part of the conical plug there are gripping plates 3 attached to the body of the conical plug using hinges 4, and leaf springs 5 mounted on the gripping plates 3 and on the body of the cone tube, a through hole 6 is made in the center of the cone tube 1, a rod 7 is installed in the through hole, the lower part of the rod 7 is connected by hinges 12 by levers 8 with gripping plates 3, centered rigging ring axis perpendicular rigging ring 9 provided with a slot for installation dismantling rod 10, the bottom of the conical tube disposed slots 11 to accommodate arms.

A device for extracting a filter from a borehole works as follows: the conical plug 1 is lowered into the wellbore using a winch, securing the cable to the lifting ring 2. When the conical plug 1 of the mesh with large cells is reached, the gripping plates 3 fall into the mesh cells and are fixed by force the elasticity of the leaf springs 5, and the filter begins to be removed from the wellbore by raising the cone plug with a winch. After removing the filter by pressing the dismantling rod 10, the rod 7 begins to lower, driving the levers 8, which lead to bending to the axis of the conical tube 1 of the gripping plates 3.

The application of the proposed design of a device for extracting a filter from a borehole allows

to extract the filter of the borehole with a simple device in design with minimal capital costs;

to simplify the repair and maintenance of boreholes;

Remove the gripper from the filter without damage.

Claims (1)

A device for extracting a filter from a borehole containing a cone plug that performs the function of a load, a lifting ring is installed in the upper part of the conical plug for securing the cable, in the lower part of the conical plug there are gripping plates attached to the body of the conical plug with hinges, and leaf springs, fixed on the gripping plates and on the body of the conical plug, characterized in that a through hole is made in the center of the conical plug, a rod is installed in the through hole, the lower part of the stem is ramie connected by means of arms with gripper plates, the keeper rigging rigging ring perpendicular to the axis of the ring a slot for installation dismantling rod, the bottom of the conical tube slots are located to accommodate levers.

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