CN214118152U

CN214118152U - Low-temperature soluble ball

Info

Publication number: CN214118152U
Application number: CN202023143140.4U
Authority: CN
Inventors: 吴杰; 常江
Original assignee: Daqing Huayou Petroleum Technology Development Co ltd
Current assignee: Daqing Huayou Petroleum Technology Development Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-09-03
Anticipated expiration: 2030-12-23

Abstract

The utility model discloses a soluble ball of low temperature easy dissolving relates to road bed technical field, including dissolvable metal casing and No. two through-holes, a through-hole has been seted up to dissolvable metal casing outer wall, end wall sliding connection about a through-hole inner wall and a slide, a through-hole lower extreme and dissolvable metal casing outer wall fixed connection, a through-hole upper end and the dissolvable polymer housing outer wall fixed connection of low temperature, but dissoluble metal casing inner wall and dissoluble temperature membrane fixed connection of leading. This soluble ball of low temperature freely dissolving, when the soluble ball was arranged in the pit, the temperature can be more and more low, and the liquid that makes external environment can flow into soluble polymer shell of low temperature and begin to dissolve with a slide and No. two slide suction through-holes and No. two through-holes until low temperature dissoluble polymer shell temperature reduces, makes external environment and soluble ball inside switch on, simple process, and convenient operation improves staff work efficiency.

Description

Low-temperature soluble ball

Technical Field

The utility model relates to a road bed technical field specifically is a low temperature soluble ball.

Background

Along with the continuous deepening of oil exploration and development, unconventional oil and gas reservoirs with low permeability, low porosity and the like are increased continuously, a vertical well cannot meet the requirements of oil exploitation and production, and a horizontal well becomes a necessary means for effectively improving the oil field exploitation benefits. The horizontal well has the advantages of large oil drainage area, high single well yield, large penetration degree, high utilization degree of oil reservoir reserves, capability of effectively avoiding stratum barriers and harsh environment zones and the like, and becomes the focus of attention of people in scientific research and practice of the petroleum industry.

In the prior art, during development and operation of oil and gas wells, the underground fracturing construction needs the soluble ball to plug the horizontal well, the common soluble ball directly acts on the underground, the soluble ball is drilled and cracked after the construction is finished, or the well is reversely discharged, or well liquid is used for dissolving the soluble ball, the processes of the processes are complex, and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a low temperature soluble ball, has solved the problem of mentioning in the above-mentioned background art to prior art not enough.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a soluble ball of low temperature easy dissolving, includes dissolvable metal casing and No. two through-holes, a through-hole has been seted up to dissolvable metal casing outer wall, end wall sliding connection about a through-hole inner wall and a slide, a through-hole lower extreme and dissolvable metal casing outer wall fixed connection, a through-hole upper end and the dissolvable polymer housing outer wall fixed connection of low temperature, but dissolvable metal casing inner wall and dissoluble temperature membrane fixed connection of leading, but dissolvable metal casing inner wall and the fixed block bottom fixed connection of leading the temperature.

No. two through-holes set up in soluble metal casing and low temperature dissoluble polymer shell between and equal fixed connection, No. two through-holes and a through-hole are with dissoluble metal casing and the dissoluble polymer shell intercommunication of low temperature, end wall sliding connection about No. two through-hole inner wall and No. two slides.

Preferably, the inner wall of the heat conducting fixing block is provided with a groove, and the groove is fixedly connected with the bottom end of the heat conducting connecting rod.

Preferably, the temperature-conducting connecting rod is internally provided with filling water.

Preferably, the upper end of the temperature conduction connecting rod is movably connected with the inner wall of the water through slot hole, and the outer wall of the water through slot hole is fixedly connected with the low-temperature soluble polymer shell.

Preferably, lead temperature connecting rod left end and connecting rod right-hand member fixed connection, a connecting rod left end and a through-hole right-hand member outer wall fixed connection, lead temperature connecting rod left end and No. two connecting rod right-hand member fixed connection, No. two connecting rod left ends and a through-hole right-hand member fixed connection.

Preferably, lead temperature connecting rod right-hand member and No. three connecting rod left end fixed connection, No. three connecting rod right-hand member and No. two through-hole left end fixed connection, lead temperature connecting rod right-hand member and No. four connecting rod left end fixed connection, No. four connecting rod right-hand member and No. two through-hole left end fixed connection.

(III) advantageous effects

The utility model provides a low-temperature soluble ball. The method has the following beneficial effects:

(1) this soluble ball of easy dissolving of low temperature, lead the warm membrane through dissoluble, lead warm fixed block and lead warm connecting rod and can conduct the temperature of external environment to dissoluble polymer shell of low temperature, when the soluble ball was arranged in the pit, the temperature can be more and more low, reduce slide and No. two slide suction through-holes and No. two through-holes until the dissoluble polymer shell temperature of low temperature, make the liquid of external environment can flow into dissoluble polymer shell of low temperature and begin to dissolve, make external environment and soluble ball internal portion switch on, therefore, the steam generator is simple in process, high convenience in operation can improve staff work efficiency.

(2) This low temperature is soluble ball easily through being provided with a connecting rod, No. two connecting rods, No. three connecting rods and No. four connecting rods for can provide the fixed stability before dissolving for soluble ball through the triangle-shaped fixed knot structure that a connecting rod, No. two connecting rods, No. three connecting rods and No. four connecting rods formed, improve the shutoff performance.

Drawings

FIG. 1 is a schematic view of the overall front view structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure A of the present invention;

FIG. 3 is an enlarged schematic view of the structure B of the present invention;

fig. 4 is a schematic view of the structure of the temperature-conducting connecting rod of the present invention.

In the figure: the heat-insulation water-cooling water heater comprises a soluble metal shell 1, a through hole 2, a sliding plate 3, a soluble heat-insulation film 4, a heat-insulation fixing block 5, a groove 6, a heat-insulation connecting rod 7, water filled 8, a water through groove hole 9, a soluble polymer shell 10 at low temperature, a connecting rod 11, a connecting rod 12, a connecting rod 13, a connecting rod 14, a connecting rod 15, a through hole 15 and a sliding plate 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a soluble ball of low temperature easy dissolving, including dissolvable metal casing 1 and No. two through-holes 15, a No. 2 through-holes have been seted up to dissolvable metal casing 1 outer wall, end wall sliding connection about No. 2 through-holes inner wall of a through-hole and a slide 3, a No. 2 lower extremes of through-hole and dissolvable metal casing 1 outer wall fixed connection, a No. 2 upper ends of through-holes and the 10 outer wall fixed connection of dissolvable polymer housing of low temperature, 4 fixed connection of temperature membrane are led with dissoluble to dissolvable metal casing 1 inner wall, 5 bottom fixed connection of dissoluble metal casing 1 inner wall and lead the temperature fixed block.

It is worth noting that the second through hole 15 is arranged between the dissolvable metal shell 1 and the low temperature dissolvable polymer shell 10 and is fixedly connected with the dissolvable metal shell 1, the second through hole 15 and the first through hole 2 communicate the dissolvable metal shell 1 and the low temperature dissolvable polymer shell 10, the inner wall of the second through hole 15 is connected with the left end wall and the right end wall of the second sliding plate 16 in a sliding way, the inner wall of the heat conducting fixing block 5 is provided with a groove 6, the groove 6 is fixedly connected with the bottom end of the heat conducting connecting rod 7, the heat conducting connecting rod 7 is internally provided with filling water 8, the upper end of the heat conducting connecting rod 7 is movably connected with the inner wall of the water through groove hole 9, the outer wall of the water through groove hole 9 is fixedly connected with the low temperature dissolvable polymer shell 10, the temperature of the external environment can be conducted to the low temperature dissolvable polymer shell 10 through the dissolvable film 4, the heat conducting fixing block 5 and the heat conducting connecting rod 7, when the dissolvable ball is arranged underground, the temperature is lower and lower, the first sliding plate 3 and the second sliding plate 16 are sucked out of the first through hole 2 and the second through hole 15 until the temperature of the low-temperature soluble polymer shell 10 is reduced, so that liquid in the external environment can flow into the low-temperature soluble polymer shell 10 and start to dissolve, the external environment is communicated with the interior of the soluble ball, the process is simple, the operation is convenient, and the working efficiency of workers is improved;

furthermore, the groove 6 and the water through slot hole 9 are both made of soluble materials.

The dissolvable metal shell 1, the first through hole 2, the first sliding plate 3, the second through hole 15 and the second sliding plate 16 are made of materials which are easy to dissolve after being soaked for a long time.

Wherein, the left end of the temperature conducting connecting rod 7 is fixedly connected with the right end of the first connecting rod 11, the left end of the first connecting rod 11 is fixedly connected with the outer wall of the right end of the first through hole 2, the left end of the temperature conducting connecting rod 7 is fixedly connected with the right end of the second connecting rod 12, the left end of the second connecting rod 12 is fixedly connected with the right end of the first through hole 2, the right end of the temperature conducting connecting rod 7 is fixedly connected with the left end of the third connecting rod 13, the right end of the third connecting rod 13 is fixedly connected with the left end of the second through hole 15, the right end of the temperature conducting connecting rod 7 is fixedly connected with the left end of the fourth connecting rod 14, the right end of the fourth connecting rod 14 is fixedly connected with the left end of the second through hole 15, the first connecting rod 11, the second connecting rod 12, the third connecting rod 13 and the fourth connecting rod 14 are arranged, so that a triangular fixed structure formed by the first connecting rod 11, the second connecting rod 12, the third connecting rod 13 and the fourth connecting rod 14 can provide the fixed stability for the soluble ball before dissolving, the plugging performance is improved, and the first connecting rod 11, the second connecting rod 12, the third connecting rod 13 and the fourth connecting rod 14 are made of soluble materials.

When the downhole pipeline plugging device works (or is used), the dissoluble metal shell 1 is placed in the downhole pipeline to be plugged, the first through hole 2 and the second through hole 15 are plugged by the first sliding plate 3 and the second sliding plate 16, so that the dissoluble metal shell 1 has a good plugging effect, then the downhole temperature is reduced after the downhole pipeline is placed for a long time, at the moment, the external temperature can be conducted to the position of the temperature conducting fixed block 5 through the dissoluble temperature conducting film 4, then the temperature conducting fixed block 5 transmits the temperature to the bottom end of the temperature conducting connecting rod 7 through the groove 6, and as the temperature conducting connecting rod 7 is filled with the filling water 8, the filling water has good temperature conducting performance, so that the filling water 8 can transmit the temperature to the top end of the temperature conducting connecting rod 7, the temperature can reduce the temperature of the inner cavity of the low-temperature dissoluble polymer shell 10, the pressure is reduced, then the low-temperature dissoluble polymer shell 10 can suck the first sliding plate 3 and the second sliding plate 16 inwards, when the first sliding plate 3 and the second sliding plate 16 are sucked to be separated from the first through hole 2 and the second through hole 15, external liquid flows into the low-temperature soluble polymer shell 10 through the first through hole 2 and the second through hole 15 and reacts with the low-temperature soluble polymer shell 10 to dissolve the low-temperature soluble polymer shell 10, then the external environment is communicated with the inside of the soluble metal shell 1, the plugging capability of the soluble metal shell 1 disappears and has the communication capability, then the soluble metal shell 1, the first through hole 2, the first sliding plate 3, the second through hole 15 and the second sliding plate 16 are soaked by liquid in a well and are dissolved after a long time, in sum, when a soluble ball is placed underground, the temperature is gradually lowered until the temperature of the low-temperature soluble polymer shell 10 is lowered, the first sliding plate 3 and the second sliding plate 16 are sucked out of the first through hole 2 and the second through hole 15, the liquid in the external environment can flow into the low-temperature soluble polymer shell 10 and start to dissolve, so that the external environment is communicated with the interior of the soluble ball, the process is simple, the operation is convenient, and the working efficiency of workers is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A low-temperature soluble ball comprises a soluble metal shell (1) and a second through hole (15), and is characterized in that: the outer wall of the soluble metal shell (1) is provided with a first through hole (2), the inner wall of the first through hole (2) is in sliding connection with the left end wall and the right end wall of the first sliding plate (3), the lower end of the first through hole (2) is fixedly connected with the outer wall of the soluble metal shell (1), the upper end of the first through hole (2) is fixedly connected with the outer wall of the low-temperature soluble polymer shell (10), the inner wall of the soluble metal shell (1) is fixedly connected with the soluble temperature-conducting film (4), and the inner wall of the soluble metal shell (1) is fixedly connected with the bottom end of the temperature-conducting fixing block (5);

no. two through-holes (15) set up in soluble metal casing (1) and low temperature dissoluble polymer shell (10) between and equal fixed connection, No. two through-holes (15) and No. one through-hole (2) are with dissoluble metal casing (1) and low temperature dissoluble polymer shell (10) intercommunication, No. two through-hole (15) inner walls and No. two slide (16) control end wall sliding connection.

2. A cryogenically easily dissolvable ball according to claim 1, wherein: lead temperature fixed block (5) inner wall and be provided with recess (6), recess (6) and lead temperature connecting rod (7) bottom fixed connection.

3. A cryogenically easily dissolvable ball according to claim 2, wherein: and filling water (8) is arranged in the temperature conduction connecting rod (7).

4. A cryogenically easily dissolvable ball according to claim 2, wherein: the upper end of the temperature conduction connecting rod (7) is movably connected with the inner wall of the water through slotted hole (9), and the outer wall of the water through slotted hole (9) is fixedly connected with the low-temperature soluble polymer shell (10).

5. A cryogenically easily dissolvable ball according to claim 2, wherein: lead temperature connecting rod (7) left end and connecting rod (11) right-hand member fixed connection, connecting rod (11) left end and a through-hole (2) right-hand member outer wall fixed connection, lead temperature connecting rod (7) left end and No. two connecting rod (12) right-hand member fixed connection, No. two connecting rod (12) left end and a through-hole (2) right-hand member fixed connection.

6. A cryogenically easily dissolvable ball according to claim 2, wherein: lead temperature connecting rod (7) right-hand member and No. three connecting rod (13) left end fixed connection, No. three connecting rod (13) right-hand member and No. two through-hole (15) left end fixed connection, lead temperature connecting rod (7) right-hand member and No. four connecting rod (14) left end fixed connection, No. four connecting rod (14) right-hand member and No. two through-hole (15) left end fixed connection.