RU92691U1 - EQUIPMENT FOR A NON-SEALING OPERATING COLUMN FOR OIL PRODUCTION BY STAIN PUMPS (OPTIONS) - Google Patents

Abstract

1. Equipment for leaky production casing for oil production by sucker-rod pumps running on a rod string, including a pipe string, a packer located below the leaky area of the production casing and above the reservoir, and a faceplate, characterized in that the equipment comprises an insert rod pump with a support the lock and the support screwed to the pipe string, the packer is installed by pulling the pipe string from it to the faceplate, and the plug-in sucker rod pump with the support lock is installed in the support, while it's time to be installed below the packer or above in the pipe string. ! 2. Equipment for leaky production casing during oil production by sucker-rod pumps running on a rod string, including a pipe string, a packer located below the leaky area of the production string and above the reservoir, and a faceplate, characterized in that the equipment comprises a pipe sucker pump installed by tensioning the pipe string from it to the faceplate and located on the lower end of the pipe string, with the tube sucker pump located below or above the packer in the pipe string.

Description

The utility model relates to the oil and gas industry and can be used in wells with violation of the tightness of the production string.

Known sucker rod pump installation containing a pump, tubing, rods, RU No. 49923 U1, F04B 47/02, 10.12.2005; RU No. 45790 U1, F04B 47/02, 05.27.2005.

A well-known sucker rod pump unit for the production of highly viscous oil, including a ground-drive reciprocating drive connected by a wellhead rod sealed in the wellhead, to a string of pump rods located in a string of pump pipes, and a well sucker rod pump, the plunger of which is connected to the string of pumping pipes, and the cylinder is connected to the string of pump rods, RU No. 35134 U1, F04B 47/02, 12/27/2003.

A well-known installation of a borehole submersible pump for oil production, including a deep plunger pump, a tubing string (located inside the casing), to which a pump cylinder is attached at the bottom, and a rod string, RU No. 62978 U1, E21B 43/00, 05/10/2007 ; RU No. 56944 U1, E21B 43/00, 09/27/2006; RU No. 33785 U1, F04B 47/00, 10/10/2003.

A well-known sucker rod pump installation containing a tubing string having a support cone seat, a sucker rod pump, the cylinder of which has a seating conical surface and is installed by it in the support cone seat, RU No. 2196249 C1, F04B 47/00, 01/10/2003.

A well-known sucker rod pump installation containing a tubing string, a pump inlet pipe, a packer located on a pipe below the pump, RU No. 73040 U1, F04B 47/02, 05/10/2008; RU. No. 27651 U1, F04B 47/02, 02/10/2003.

A well-known sucker rod pump unit for simultaneous and separate oil production from two layers, including a plunger with a cylinder, suction and discharge valves, a packer, uncoupling the upper and lower layers and located below the pump intake, RU No. 2321177 C1, F04B 47/00, 10.04. 2008; RU No. 2293215 C1, F04B 47/02, 02/10/2007.

Known sucker rod pump units are designed for oil production in the absence of leaks in the production string.

A known method of oil production in violation of the tightness of the production string, involving the descent into the production casing of the well of the string of tubing with a packer fixed in its lower part, which is placed above the working oil reservoir with overlapping space between the pipe string and production casing, RU No. 2236560 C2, Е21В 43/00, Е21В 33/12, 09/20/2004.

The known method does not provide for the extraction of oil by rod pumps.

A well-known set of downhole equipment for an unpressurized production string including a pipe string, a packer located below the non-leaky section of the production string and above the reservoir, and a faceplate, RU No. 76965 U1, ЕВВ 43/00, 10/10/2008.

This technical solution was adopted as the "closest analogue" of this utility model.

The equipment of the "closest analogue" contains a jet pump, designed for the nominal pressure of the electric centrifugal pump, a safety valve installed between the electric centrifugal and jet pumps and having the ability to relieve pressure when the electric centrifugal pump is started, and a check valve installed between the jet pump and the packer, and in the areas above the packer located in the area of the leaky section of the production string, and subpacker located above the reservoir and below the leaky section of the production casing, installed over-packer and sub-packer circulation valves, respectively, controlled from the mouth, while the electric centrifugal pump, safety valve, jet pump, non-return valve, sub-packer circulation valve, packer and over-pack circulation valve are placed in series and connected by a pipe string to the faceplate, and the check valve the valve is located below the sub-packer circulation valve

The layout of the equipment "nearest analogue" ensures the safe operation of the kit and the possible replacement of individual equipment, if necessary.

However, the “closest equivalent” set of equipment is not intended for oil production by sucker rod pumps.

The present utility model is based on the solution of a problem that allows oil production by sucker-rod pumps in a leaky casing without repair and to increase the operating mode.

The technical result of this utility model consists in installing the packer by pulling the pipe string from it to the faceplate, installing the plug-in sucker-rod pump with a support lock in the support under or above the packer in the pipe string (option 1), and installing the sucker-rod pump below the packer or above it in the string pipes when the packer is located at the lower end of the pipe string (option 2).

According to the utility model (Options 1 and 2), this problem is solved due to the fact that the equipment for the leaky production string for oil production by sucker rod pumps running on the rod string includes a pipe string, a packer located below the leaky area of the production string and above the reservoir , and faceplate.

Option 1.

The equipment contains a plug-in sucker rod pump with a support lock and a support. The support is screwed to the pipe string. The packer is installed due to the tension of the pipe string from it to the faceplate. The plug-in sucker rod pump is mounted in the support with a support lock. The support can be installed under or above the packer in a pipe string.

Option 2

The equipment contains a tube sucker rod pump. The packer is installed due to the tension of the pipe string from it to the faceplate and is located at the lower end of the pipe string when placing the tube suction pump below the packer or above it in the pipe string.

The applicant has not identified sources containing information about the technical solution that is identical to the characteristics given in the formula of this utility model, this determines, according to the applicant, the utility model meets the criterion of “novelty”.

The essence of the utility model is illustrated by drawings, which depict:

figure 1 - layout of equipment. Option 1.

figure 2 - layout of equipment. Option 2

Equipment for leaky production casing includes:

Options 1 and 2.

Pipe string - 1.

Packer - 2.

Faceplate -3.

Column of rods - 4.

Option 1.

Plug-in sucker rod pump - 5,

support lock (pump 5) - 6.

Support (for pump 5) - 7.

Option 2

Pipe sucker rod pump - 8.

Equipment (options 1 and 2) includes a pipe string 1, a packer 2, a faceplate 3 and a rod string 4.

Packer 2 is located below the leaky area of the production string and above the reservoir.

Packer 2 is installed due to the tension of the pipe string 1 from it to the faceplate 3.

Equipment (option 1) contains an insert rod pump 5 with a support lock 6 and a support 7.

The support 7 is screwed to the pipe string 1.

Packer 2 is installed due to the tension of the pipe string 1 from it to the faceplate 3.

The plug-in sucker-rod pump 5 with the support lock 6 is installed in the support 7.

The support 7 can be installed under the packer 2 or above it in the pipe string 1.

Equipment (option 2) contains a tube rod pump 8.

Packer 2 is located at the lower end of the pipe string 1

The tube sucker pump 8 is located below or above the packer 2 in the pipe string 1.

The installation of equipment for leaking production casing during oil production by rod pumps is as follows.

Option 1.

The packer 2, the support 7 of the insert rod pump 5, and the pipe string 1 are lowered into the well plugged by the fluid.

Unpack the packer 2 with the upper mechanical armature by tensioning the pipe string 1 with an effort higher than the packing force.

Screw the faceplate 3 onto the pipe string 1 and land it on the flange (not shown) of the production string. Check the tightness of the installation of the packer 2 by the pressure of the liquid through the annulus.

On the column of rods 4, the insert rod pump 5 is lowered until the support lock 6 enters the support 7.

The well is sealed with a wellhead seal and the rod string 4 is connected to the rocking machine.

The equipment is ready to go.

A rocking machine is launched and oil is supplied.

The support 7 for the plug-in sucker rod pump 5 can be placed above the packer 2, directly screwed with it, or above the packer 2 in the middle of the pipe string 1, or under the packer 2 directly or on the pipe shank.

Lifting equipment is carried out according to the reverse scheme.

Disconnect the rod string 4 from the rocking machine, plug the well with water, remove the wellhead seal, remove the plug-in rod pump 5 along with the support lock 6 on the rod string 4.

Unpack the packer 2 and lift it along with the support 7 at the wellhead.

Option 2

The cylinder of the tube sucker pump 8 and the packer 2 on the pipe string 1 are sequentially lowered into the well plugged by water.

Unpack the packer 2 by tensioning the pipe string 1.

Screw the faceplate 3 onto the pipe string 1 and install it on the production string flange.

On the column of rods 4 in the column of pipes 1 lower the plunger of the pump into the cylinder of the pipe rod pump 8.

Establish a wellhead seal on the faceplate 3 and attach the rod string 4 to the rocking machine and supply oil.

Lifting equipment is carried out according to the reverse scheme.

The tube sucker pump 8 may be located below or above the packer 2 in the pipe string 1.

Currently, oil production by rod pumps is carried out without the use of a packer. Due to the fact that the wells are old and there are leaks in the walls of the pipes with which they are cased, water flows through them, their operation without packers is not possible.

The proposed equipment (options 1 and 2) allows you to cut off the water and continue oil production.

The packer is installed by tensioning the pipe string, which is stretched like a string from the packer to the faceplate. The packer cuts off leakage in the production casing from the bottom of the oil, which allows you to continue oil production without repairing the well.

The proposed equipment is widely used in the oil and gas industry, manufactured industrially at the Izmeron plant and pilot tests determine, in the applicant’s opinion, its compliance with the criterion of “industrial applicability”.

Claims (2)

1. Equipment for leaky production casing for oil production by sucker-rod pumps running on a rod string, including a pipe string, a packer located below the leaky area of the production casing and above the reservoir, and a faceplate, characterized in that the equipment comprises an insert rod pump with a support the lock and the support screwed to the pipe string, the packer is installed by pulling the pipe string from it to the faceplate, and the plug-in sucker rod pump with the support lock is installed in the support, while it's time to be installed below the packer or above in the pipe string. 2. Equipment for leaky production casing for oil production by sucker-rod pumps running on a rod string, including a pipe string, a packer located below the leaky area of the production string and above the reservoir, and a faceplate, characterized in that the equipment comprises a pipe sucker pump installed by tensioning the pipe string from it to the faceplate and located on the lower end of the pipe string, with the tube sucker pump placed below or above the packer in the pipe string.