RU151540U1 - DEVICE FOR SEALING OF THE WELL'S HOLE WHEN STOPPING THE LIFTING OPERATIONS OF THE PUMP BARS - Google Patents

Abstract

1. A device for sealing the wellhead when stopping the lifting operations of the sucker rods, comprising a hollow cylindrical body, the length of which is about 600 mm, the outer diameter is about 73 mm, the inner diameter is about 62 mm, the wall thickness is about 5.5 mm, and the upper end of the specified housing is made with the possibility of attaching the coupling, and the lower end of the specified housing is made with the possibility of attaching to the faceplate wellhead fittings, and the specified hollow cylindrical body is made with possible the possibility of passage in its inner part of the pump rod, and in the upper part of the hollow cylindrical body there is at least one fixing means containing a handle and made with the possibility of fixing the pump rod for thickening on the body of the pump rod, and the coupling is made with the possibility of receiving locking means, while the specified locking means is made with the possibility of removal from the specified coupling and with the possibility of sealing the wellhead. 2. The device according to claim 1, in which the length of the coupling is 130.2 mm, the outer diameter is 88.9 mm. 3. The device according to claim 1, wherein at least one through hole is made in the upper part of the cylindrical body for receiving at least one fixing means. The device according to claim 1, wherein said fixing means is selected from the group consisting of: pin, clamp, clamp, staple. 5. The device according to claim 3, wherein said fixing means is made in the form of two threaded pins. The device according to claim 3, wherein said through hole is made in an amount of two pieces. The device according to p.

Description

Technical field

This utility model relates to the field of the oil and gas industry, and in particular, to a wellhead sealing device used when stopping tripping operations of downhole pumping equipment.

State of the art

Hoisting is a labor-intensive process consisting of a set of manual and machine-manual operations, which takes a long time. When carrying out tripping operations (STR) of downhole pumping equipment (GND), in particular, sucker rods, there is a need to stop the process due to production needs or due to an emergency (oil-gas-water-water manifestations, loading / unloading of equipment, technical break) . At the same time, sealing the wellhead is necessary. Since the drill stem is performed, the closing of the wellhead is possible only when mounting the wellhead gland with a self-aligning head (SUSG), polished rod and cable suspension, which increases the time for closing / opening the wellhead and negatively affects the repair process.

A device is known for sealing the wellhead during routine and major repairs of oil and gas wells (copyright certificate SU 861552), comprising a connecting pipe mounted to the upper coupling of the pipe string and a shutoff member. However, this device is not aimed at sealing the wellhead during the descent and lifting of the sucker rods, it does not contain means for fixing the sucker rods.

A wellhead sealing device is known (patent RU 2143541 C1, B21B 33/03), used when an emergency occurs at the well, as well as during a break in work. The device comprises a hollow cylindrical body with a through channel for passing pipes with a flange for connection to the wellhead reinforcement, and a nozzle with a shut-off element for blocking the pipe channel.

The process of installation and dismantling of this device implies the implementation of many labor-intensive stages, which require a significant amount of labor and time, moreover, this device is not aimed at sealing the wellhead during the hoisting operations of the sucker rods.

The closest technical solution to this device is a device for sealing the wellhead (SU 1084415 A, E21B 33/03) including a pipe with a locking member for blocking the pipe channel. This device is aimed at reducing the time of sealing the wellhead during the repair of wells during manifestations, however, it is not aimed at reducing the time of sealing during the lifting operations of the pump rods, does not have the proper fixing devices for fixing the rods.

Utility Model Essence

The objective of the proposed utility model is to provide the installation of a suitable device for sealing the wellhead when temporarily stopping the descent or lifting of downhole pumping equipment, in particular pump rods, having a simple design that provides reliable fixation of the rods and reliable sealing of the wellhead, as well as significantly reducing time spent on sealing the wellhead.

In one aspect, the present utility model discloses a device for sealing a wellhead while stopping tripping of sucker rods, comprising a hollow cylindrical body whose length is about 600 mm, the outer diameter is about 73 mm, the inner diameter is about 62 mm, and the wall thickness is about 5 , 5 mm, and the upper end of the specified housing is made with the possibility of connecting the coupling, and the lower end of the specified housing is made with the possibility of attaching to the faceplate wellhead fittings, This hollow cylindrical body is arranged to allow passage in its inner part of the pump rod, at least one fixing means comprising a handle and configured to fix the pump rod for thickening on the gel of the pump rod is installed in the upper part of the hollow cylindrical body, the coupling being made with the possibility of receiving locking means, while the specified locking means is made with the possibility of removal from the specified coupling and with the possibility of sealing the mouth of the squeegee ins.

In another aspect, a device is disclosed in which the length of the sleeve is 130.2 mm, the outer diameter is 88.9 mm.

In another aspect, a device is disclosed in which at least one through hole is made in the upper part of the cylindrical body for receiving at least one locking means.

In another aspect, a device is disclosed in which said fixing means is selected from the group consisting of: a pin, a clamp, a clamp, a bracket.

In another aspect, a device is disclosed in which said at least one locking means is two threaded pins.

In another aspect, a device is disclosed in which nuts having an internal thread are attached concentrically with said holes to the outer surface of a cylindrical body, and these pins are secured to the cylindrical body by means of a threaded connection, and also said threaded connection allows the pins to be moved into the body for fixing the sucker rod.

In another aspect, a device is disclosed in which the locking means is selected from the group consisting of: a corner angle valve, a plug, a gate valve, and another.

Thus, the present utility model provides reliable sealing of the wellhead during a temporary stop of the hoisting operations of the sucker rods, and also significantly reduces the labor costs of sealing the wellhead.

Brief Description of the Drawings

FIG. 1 illustrates a general view of one embodiment of a device for sealing a wellhead during shutdown of a STR in a partial section in a configuration providing sealing.

Detailed Description of Drawings

In FIG. 1 shows one possible embodiment of a device for sealing a wellhead when shutting down a STR in an assembled configuration that provides sealing for a wellhead. The housing 1 of the device is a hollow cylindrical housing made with the possibility of passing through its inner part of the pump rod 2. The pump rod 2 is fixed by means of fixing means 3 for thickening on the body of the rod. These fixing means are made in the form of threaded pins. The fixing means 3 is provided with handles. To ensure the passage of the fixing means 3 into the housing 1, through holes are made in the upper part of the housing and threaded nuts are attached to the external surface of the housing. The housing 1 of the device is mounted on the faceplate 4 of the reinforcement of the wellhead. A coupling 5 is attached to the upper end of the housing 1. The shutoff means 6 is removably mounted in the coupling 5, and is configured to seal the wellhead. Detailed Description of Embodiments of a Utility Model

The device for sealing the wellhead when stopping the launching and lifting of deep pumping equipment, in particular pump rods, has a hollow cylindrical body, the length of which is about 600 mm, the outer diameter is about 73 mm, the inner diameter is about 62 mm, the wall thickness is about 5.5 mm, which is a pipe for the tubing. The lower end of the housing is configured to mount wellhead fittings on the faceplate, and the upper end is provided with a sleeve for receiving locking means. The housing is equipped with at least one fixing means, which is arranged to fix the pump rod passing through the specified housing, for thickening on the body of the rod, when stopping the hoisting operations. The locking means may be any suitable fixing means, such as a-clamp, clamp, pins, staples, and more. For ease of use of the fixing means, said fixing means is provided with handles.

In one embodiment, pins are used as the locking means. Through holes are provided in the housing for installing said fixing means in the upper part of the device. Nuts having an internal thread are attached to the outer surface of the cylindrical body concentrically with holes, which secure the fastening of fixing means - pins in the cylindrical body by means of a threaded connection, and also, the specified threaded connection provides the possibility of moving the fixing means into the body for fixing the rod.

The present wellhead sealing device also comprises a shutoff means adapted to be removed from said device and capable of sealing the wellhead. The specified locking means is installed in the coupling after fixing the pump rod. The length of the coupling is 130.2 mm, the outer diameter is 88.9 mm. The locking means may be any suitable locking means, such as an angular shut-off valve, a plug, a plug, a valve, or the like.

The cylindrical hollow body of the device for sealing the wellhead when stopping the lifting operations of the sucker rods, containing fixing means and a sleeve for receiving the shut-off means, is mounted on the disassembled wellhead fittings (faceplate) immediately before the start of the descent or lifting of the sucker rods, to the place of the dismantled wellhead sealing equipment (SUSG, "tee", manifold line). The locking means is installed in the coupling after stopping the STR and fixing the rods.

Claims (8)

1. A device for sealing the wellhead when stopping the lifting operations of the sucker rods, comprising a hollow cylindrical body, the length of which is about 600 mm, the outer diameter is about 73 mm, the inner diameter is about 62 mm, the wall thickness is about 5.5 mm, and the upper end of the specified housing is made with the possibility of attaching the coupling, and the lower end of the specified housing is made with the possibility of attaching to the faceplate wellhead fittings, and the specified hollow cylindrical body is made with possible the possibility of passage in its inner part of the pump rod, and in the upper part of the hollow cylindrical body there is at least one fixing means containing a handle and made with the possibility of fixing the pump rod for thickening on the body of the pump rod, and the coupling is made with the possibility of receiving locking means, while the specified locking means is made with the possibility of removal from the specified coupling and with the possibility of sealing the wellhead. 2. The device according to claim 1, in which the length of the coupling is 130.2 mm, the outer diameter is 88.9 mm. 3. The device according to claim 1, in which at least one through hole is made in the upper part of the cylindrical body for receiving at least one fixing means. 4. The device according to claim 1, wherein said fixing means is selected from the group consisting of: a pin, a clamp, a clamp, a bracket. 5. The device according to claim 3, wherein said fixing means is made in the form of two threaded pins. 6. The device according to p. 3, in which the specified through hole is made in the amount of two pieces. 7. The device according to claim 6, in which nuts having an internal thread are attached to the outer surface of the cylindrical body concentrically with holes, which secure the fixing means in the cylindrical body by means of a threaded connection, and also said threaded connection enables the pins to be moved into the housing for fixing the sucker rod. 8. The device according to claim 1, in which the locking means is selected from the group consisting of: locking angle valve, plugs, bolts, staples.

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