CN219299265U - Metal expansion pipe sleeve damage well patch device - Google Patents

Abstract

The utility model relates to the technical field of pipe sleeve damage well repairing devices, and provides a metal expansion pipe sleeve damage well repairing device which comprises a connecting rod, wherein a bracket is arranged at the top end of the connecting rod; the utility model is beneficial to the adsorption of the metal expansion pipe to the damaged well by arranging the hot melt adhesive layer, the first electric ring and the second electric ring, is convenient for a worker to put the metal expansion pipe into the damaged well when in use, and when the metal expansion pipe reaches a repairing place, the high-pressure air pump is used for connecting the air inlet pipe, the metal expansion pipe is expanded by entering the air outlet pipe through the connecting rod and then carrying out high pressure on the expansion pipe through the air outlet hole, in the expansion process, the power generation pipe transmits power to the sealing plug, part of power is transmitted to the first electric ring through the sealing plug, part of power is transmitted to the second electric ring through the expansion head, the first electric ring and the second electric ring transmit power to the expansion pipe, and the expansion pipe generates conductive heat to carry out hot melting on the hot melt adhesive layer, so that the expansion pipe and the damaged well are firmer after expansion.

Description

A metal expansion pipe casing damaged well compensation device

technical field

The utility model relates to the technical field of a casing damaged well subsidy device, in particular to a metal expansion pipe casing damaged well subsidy device.

Background technique

The geological conditions of the oilfield are complex, the properties of oil products are diverse, and the development methods are diversified. Due to factors such as long development time, serious sand production in blocks, and thermal recovery of heavy oil, oil, gas and water well casing damage is particularly serious. Affect daily oil production and daily water injection. And the number of bad wells is increasing every year. Therefore, the subsidy technology of expansion tubes for casing damaged wells has a broad application space. At present, there are many subsidy methods for expansion tubes for casing damaged wells, and the subsidy for casing damaged wells with metal expansion tubes is one of them.

For example, the application number CN201820337964.9 discloses a casing damage well expansion pipe reinforcement mechanism, including: a casing with a section to be subsidized; an expansion pipe that is lowered into the casing and made of 3Cr13 stainless steel, which is close to the upper end and the lower end The outer wall of the outer wall is respectively provided with a first sealing assembly and a second sealing assembly, and the section to be subsidized is located between the first sealing assembly and the second sealing assembly, and the first sealing assembly and the second sealing assembly are set to hang on the casing after the expansion tube expands. On the inner wall; a connecting rod that goes down into the expansion tube and has a fluid channel, the connecting rod is connected with the oil pipe and the fluid channel communicates with the internal flow channel of the oil pipe, and the lower end of the connecting rod is connected with an expansion cone, which touches the top of the expansion tube The inner wall; the bottom blind plug connected to the lower end of the expansion tube, and the firing chamber is defined between the bottom blind plug and the expansion cone. The casing damaged well expansion pipe reinforcing mechanism of the embodiment of the utility model has high temperature resistance and corrosion resistance.

However, the structural design of the existing metal expansion tube casing damaged well subsidy device is not comprehensive. When in use, the staff put the metal expansion tube into the damaged well. When the metal expansion tube reaches the repair site, the metal expansion tube is expanded by a high-pressure air pump. The expansion tube supports the damaged well, and the inside of the damaged well is wet, so the expansion tube may slip, so it may deviate from the position of the subsidy.

Utility model content

The utility model provides a metal expansion pipe casing damaged well subsidy device, which solves the problem of a metal expansion pipe casing damaged well subsidy device in the related art.

The technical scheme of the utility model is as follows: a metal expansion pipe casing damaged well subsidy device, including a connecting rod, a bracket is arranged at the top of the connecting rod, an air intake pipe is arranged at the middle of the bracket, and the bottom end of the connecting rod An air intake pipe is provided, the top and bottom ends of the bracket are fixedly connected with a fixed plate, the top of the bracket is fixedly connected with a hook at the middle part of the top of the fixed plate, and the bottom end of the bracket is fixedly connected with a connection at the top of the fixed plate. block, the top of the connecting block is fixedly connected with a connecting head, and the top of the connecting head is movably connected with the intake pipe.

Preferably, a power generation tube is fixedly connected to the bottom end of the connecting rod, and a sealing plug is fixedly connected to the bottom end of the power generation tube.

Preferably, the outer wall of the sealing plug is fixedly connected with a first electric coil.

Preferably, the power generation tube is fixedly connected with an expansion tube at the bottom end of the sealing plug, the top end of the expansion tube is fixedly connected with the first sealing ring, and the top end of the first sealing ring is fixedly connected with the first electric ring.

Preferably, the bottom end of the sealing plug is fixedly connected with an air outlet pipe, and the outer wall of the air outlet pipe is provided with air outlet holes in an annular array.

Preferably, the connecting rod is fixedly connected with an expansion head at the bottom end of the air outlet pipe.

Preferably, the middle part of the expansion head is fixedly connected with a second coil.

Preferably, the bottom end of the expansion head is fixedly connected with a bottom plug.

Preferably, the outer wall of the expansion tube is fixedly connected with a hot melt adhesive layer.

Preferably, the outer wall of the second electric ring is movably connected with a second sealing ring, and the top end of the second sealing ring is fixedly connected with the expansion tube.

Technical effect and advantage of the present utility model:

1. The utility model is equipped with a hot-melt adhesive layer, a first electric coil, and a second electric coil, which is beneficial to the adsorption of the metal expansion tube to the damaged well, and is convenient for the staff to put the metal expansion tube into the damaged well during use. When the metal expansion tube arrives at the repair site, use a high-pressure air pump to connect the intake pipe, then enter the outlet pipe through the connecting rod, and then apply high pressure to the expansion tube through the air outlet hole to expand the metal expansion tube. During the expansion process, power generation The tube transmits electricity to the sealing plug, part of the electricity is transmitted to the first electric coil through the sealing plug, and part of the electricity is transmitted to the second electric coil through the expansion head. The first electric coil and the second electric coil transmit electricity to the expansion tube, and the expansion tube conducts electricity. Heat, hot-melt the hot-melt adhesive layer, so that after expansion, the expansion tube and the damaged well are firmer.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the utility model.

Fig. 2 is a schematic cross-sectional structure diagram of the expansion tube of the present invention.

Fig. 3 is a schematic diagram of the explosion structure of the expansion tube of the present invention.

Fig. 4 is a schematic diagram of the bracket structure of the present invention.

Reference numerals are: 1, connecting rod; 101, power generation tube; 102, sealing plug; 1021, first coil; 103, expansion head; 1031, second coil; 104, bottom plug; 2, bracket; 201, Fixed plate; 202, hook; 203, connection block; 204, connector; 3, air intake pipe; 4, hot melt adhesive layer; 401, expansion pipe; 402, air outlet pipe; 4021, air outlet hole; 403, first sealing ring ; 404, the second sealing ring.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts all involve the scope of protection of the present utility model.

Referring to Fig. 1-Fig. 4, the utility model provides a metal expansion pipe casing damage compensation device, which includes a connecting rod 1, a bracket 2 is arranged on the top of the connecting rod 1, an air inlet pipe 3 is arranged in the middle of the bracket 2, and the connecting rod The bottom end of 1 is provided with air intake pipe 3, the top and bottom ends of support 2 are fixedly connected with fixed plate 201, the top of support 2 and the middle part at the top of fixed plate 201 are fixedly connected with hook 202, and the bottom end of support 2 is located at fixed plate 201 The top of the connecting rod 1 is fixedly connected with a connection block 203, the top of the connection block 203 is fixedly connected with a connector 204, the top of the connector 204 is movably connected with the intake pipe 3, the bottom end of the connecting rod 1 is fixedly connected with the power generation tube 101, and the power generation tube 101 The bottom end is fixedly connected with a sealing plug 102, the outer wall of the sealing plug 102 is fixedly connected with a first electric coil 1021, the power generation tube 101 is located at the bottom of the sealing plug 102 and is fixedly connected with an expansion tube 401, and the top of the expansion tube 401 is fixedly connected with the first sealing ring 403, the top of the first sealing ring 403 is fixedly connected with the first electric ring 1021, the bottom end of the sealing plug 102 is fixedly connected with an air outlet pipe 402, the outer wall of the air outlet pipe 402 is provided with an air outlet hole 4021 in an annular array, and the connecting rod 1 is located at the outlet The bottom end of the air pipe 402 is fixedly connected with the expansion head 103, the middle part of the expansion head 103 is fixedly connected with the second coil 1031, the bottom end of the expansion head 103 is fixedly connected with the bottom plug 104, and the outer wall of the expansion tube 401 is fixedly connected with a hot melt adhesive Layer 4, the outer wall of the second electric ring 1031 is movably connected with a second sealing ring 404, and the top of the second sealing ring 404 is fixedly connected with the expansion tube 401. When in use, the staff puts the metal expansion tube into the damaged well, and the metal expands. When the tube arrives at the repair site, use a high-pressure air pump to connect the intake tube 3, and enter the outlet tube 402 through the connecting rod 1, and then apply high pressure to the expansion tube 401 through the outlet hole 4021 to expand the metal expansion tube. Among them, the power generation tube 101 transmits electricity to the sealing plug 102, part of the electricity is transmitted to the first electric coil 1021 through the sealing plug 102, and part of the electricity is transmitted to the second electric coil 1031 through the expansion head 103, the first electric coil 1021 and the second electric coil 1031 The electricity is transmitted to the expansion tube 401, and the expansion tube 401 conducts electricity to generate heat, and heats the hot melt adhesive layer 4, so that after expansion, the expansion tube 401 and the damaged well are stronger.

The working principle of the utility model: first, when in use, the staff will connect the high-pressure air pump with the intake pipe 3, and then use the hook 202 to fix the device, and then the staff will connect the connecting rod 1 with the device connected to the bottom end. Put it into the damaged well, when the hot melt adhesive layer 4 falls to the place where it needs to be repaired, the staff will turn on the high-pressure air pump, and the gas generated by the high-pressure air pump will enter the connecting rod 1 through the inlet pipe 3, and then be transmitted to the outlet pipe 402. The air outlet 4021 enters the inside of the expansion tube 401. Since the first sealing ring 403 and the second sealing ring 404 seal the expansion tube 401, the sealing plug 102 and the expansion head 103 perform bottom plugging 104 on the expansion tube 401, and then use a high-pressure air pump to connect The air intake pipe 3 enters the air outlet pipe 402 through the connecting rod 1, and then the expansion pipe 401 is subjected to high pressure through the air outlet hole 4021 to expand the metal expansion pipe. During the expansion process, the power generation pipe 101 transmits electricity to the sealing plug 102 , part of the electricity is transmitted to the first electric coil 1021 through the sealing plug 102, part of the electricity is transmitted to the second electric coil 1031 through the expansion head 103, the first electric coil 1021 and the second electric coil 1031 transmit electricity to the expansion tube 401, and the expansion tube 401 conducts electricity to generate heat, and heat-melts the hot-melt adhesive layer 4, so that after expansion, the expansion tube 401 and the damaged well are firmer.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. The utility model provides a metal expansion pipe cover decreases well patch device, includes connecting rod (1), its characterized in that, the top of connecting rod (1) is provided with support (2), the middle part of support (2) is provided with intake pipe (3), the bottom of connecting rod (1) is provided with intake pipe (3), the top and the bottom fixedly connected with fixed plate (201) of support (2), the top of support (2) just is located middle part fixedly connected with couple (202) on fixed plate (201) top, the top fixedly connected with connecting block (203) that support (2) bottom is located fixed plate (201), the top fixedly connected with connector (204) of connecting block (203), the top and intake pipe (3) swing joint of connector (204).

2. The metal expansion pipe sleeve damage well patch device according to claim 1, wherein the bottom end of the connecting rod (1) is fixedly connected with a power generation pipe (101), and the bottom end of the power generation pipe (101) is fixedly connected with a sealing plug (102).

3. A metallic expansion pipe casing damage well patch device as in claim 2, wherein the outer wall of the sealing plug (102) is fixedly connected with a first electrical coil (1021).

4. The metal expansion pipe sleeve damage well patch device according to claim 2, wherein the power generation pipe (101) is located at the bottom end of the sealing plug (102) and is fixedly connected with an expansion pipe (401), the top end of the expansion pipe (401) is fixedly connected with a first sealing ring (403), and the top end of the first sealing ring (403) is fixedly connected with a first electric ring (1021).

5. The metal expansion pipe sleeve damage well patch device according to claim 2, wherein the bottom end of the sealing plug (102) is fixedly connected with an air outlet pipe (402), and an annular array of outer walls of the air outlet pipe (402) is provided with air outlet holes (4021).

6. The repairing device for the lost circulation well of the metal expansion pipe sleeve according to claim 1, wherein the connecting rod (1) is fixedly connected with the expansion head (103) at the bottom end of the air outlet pipe (402).

7. The metal expansion pipe casing damage well patch device according to claim 6, wherein a second electric coil (1031) is fixedly connected to the middle part of the expansion head (103).

8. The metal expansion pipe casing damage well patch device according to claim 6, wherein a bottom end of the expansion head (103) is fixedly connected with a bottom plug (104).

9. The metal expansion pipe casing damage well patch device according to claim 4, wherein the outer wall of the expansion pipe (401) is fixedly connected with a hot melt adhesive layer (4).

10. The metal expansion pipe casing damage well patch device according to claim 7, wherein a second sealing ring (404) is movably connected to the outer wall of the second electric ring (1031), and the top end of the second sealing ring (404) is fixedly connected with the expansion pipe (401).

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