CN113473819A - Cooling system of liquid-electricity pulse shock wave petroleum yield increasing device - Google Patents
Cooling system of liquid-electricity pulse shock wave petroleum yield increasing device Download PDFInfo
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- CN113473819A CN113473819A CN202110876565.6A CN202110876565A CN113473819A CN 113473819 A CN113473819 A CN 113473819A CN 202110876565 A CN202110876565 A CN 202110876565A CN 113473819 A CN113473819 A CN 113473819A
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- electric pulse
- gas
- cooling system
- shock wave
- air inlet
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
Abstract
The application relates to a liquid electric pulse shock wave petroleum stimulation device cooling system to a device casing internal temperature for reducing liquid electric pulse device, it includes: one end of the air inlet pipe is connected with an air inlet hole formed in the device shell; a gas cooler; and the air supply piece is connected with the air inlet pipe and is used for sending the cold air generated by the gas cooler into the liquid electric pulse device. Through the intake pipe, air supply spare and gas cooler send into the air after the cooling in to the device shell of liquid electric pulse device, and then carry out the heat exchange with each component part of inside liquid electric pulse device, realize cooling liquid electric pulse device, obtain the gas that heaies up after the heat exchange simultaneously and will follow the exhaust hole and send out the device shell, finally make liquid electric pulse device can receive lasting cooling processing in the use, realize that it can be in the temperature range of normal work in the longer time, therefore, improve liquid electric pulse device's life and work efficiency greatly.
Description
Technical Field
The application relates to the technical field of underground petroleum yield increase, in particular to a cooling system of a liquid-electric pulse shock wave petroleum yield increase device.
Background
In the process of oil and gas exploitation, substances such as slurry, fracturing and acidizing working fluid invade a stratum to cause reservoir pollution, so that the permeability of the stratum around a shaft is reduced, the seepage condition of fluid is worsened, the stratum is blocked, an oil well does not output liquid when serious, and water well injection does not enter. This problem is particularly acute in older oil fields. The geological condition of oil wells in China is complex, oil layers are thin and development difficulty is high, so that the exploitation cost of oil and gas resources is high. At present, because of the huge number of oil wells which can not normally produce due to blockage, the strengthening of the yield increasing development in the middle and later periods of the oil and gas wells is imperative. The conventional blockage removing method for the oil well comprises a chemical method and a physical method, wherein the chemical blockage removing method mainly adopts acid liquid for removing blockage, but secondary pollution is caused by the acid liquid, and a plurality of national legislations forbid. The physical blockage removing method has no pollution, wherein the hydro-electric pulse shock wave yield increasing method is one of the very advanced physical methods, and the technical characteristics are that a high-voltage strong electric field and instantaneous pulse discharge are carried out in liquid to generate a hydro-electric effect. The liquid electricity effect makes the energy release instantly, the liquid in the channel gasifies rapidly, expands and causes the explosion. The rapidly expanding gas generates strong shock waves in water, and plugging is removed in the form of impulse or impact pressure.
At present, the domestic liquid-electric pulse blockage removing technology has a gap with foreign countries, the highest bearable temperature of foreign devices reaches 120 ℃, the operation can be deepest to exceed 3000m, the domestic highest bearable temperature is 105 ℃, and the operation depth cannot exceed 3000 m. The main reason is that the water temperature is higher and higher with the increase of the drilling depth, and the temperature rises by about 3 ℃ when the water surface is 20 meters below the ground surface and drops by 100 meters. And along with the increase of operation time, electronic components in the device dissipate heat. The heating of the device by the underground hot fluid and the heat dissipation of the self equipment cause the temperature in the closed device to be gradually increased, and when the temperature is increased to the limit temperature born by the equipment, the device is damaged and fails. Therefore, the temperature in the liquid-electric pulse petroleum stimulation device can directly influence the well descending depth, the operation time and the service life of the device.
Disclosure of Invention
The embodiment of the application provides a liquid-electricity pulse shock wave petroleum yield increasing device cooling system to solve the problem that liquid-electricity pulse petroleum yield increasing device generates high heat and can not dissipate heat in time in the related art, so that damage is caused when the device is used for a long time.
In order to achieve the purpose, the technical scheme is as follows:
the utility model provides a liquid electric pulse shock wave petroleum stimulation apparatus cooling system to be used for reducing temperature in the device casing of liquid electric pulse device, its characterized in that, it includes:
one end of the air inlet pipe is connected with an air inlet hole formed in the device shell;
a gas cooler;
and the air supply piece is connected with the air inlet pipe and is used for sending the cold air generated by the gas cooler into the liquid electric pulse device.
In some embodiments, the device housing is provided with a vent hole, and the cooling system of the hydro-electric pulse shock wave petroleum stimulation device further comprises:
the air outlet sleeve is sleeved outside the device shell, an air outlet annular channel is formed between the air outlet sleeve and the device shell at intervals, the exhaust hole is communicated with the air outlet annular channel, and an air outlet hole is formed in the air outlet sleeve.
In some embodiments, the air intake hole is located at the top of the device housing and the air exhaust hole is located at the bottom of the device housing.
In some embodiments, the air outlet is located at the top of the device housing.
In some embodiments, the air outlet hole is coaxial with the air inlet hole, the diameter of the air inlet hole is smaller than that of the air outlet hole, a connecting pipe penetrating through the air outlet hole is arranged on the air inlet hole, the air inlet pipe is connected with the connecting pipe, and an air outlet pipe sleeved outside the air inlet pipe is connected to the air outlet hole.
In some embodiments, the air inlet pipe is coated with a layer of thermal insulation paint.
In some embodiments, the device housing is provided with a thermal insulation layer for limiting heat exchange between the gas in the device body and the gas in the gas outlet ring channel.
In some embodiments, the device housing includes a plurality of unit housings, each of the unit housings has a supporting plate, the unit housings are detachably connected to each other at adjacent ends thereof, so that different components of the electrohydraulic pulse device are disposed on the supporting plates in different unit housings, and the supporting plates have wire passing holes and air passing holes.
In some embodiments, the supporting plate is concavely provided with a mounting groove for limiting each component of the hydro-electric pulse device placed on the supporting plate.
In some embodiments, the outer wall of the air outlet sleeve is coated with an abrasion resistant layer.
The beneficial effect that technical scheme that this application provided brought includes:
the embodiment of the application provides a liquid electric pulse shock wave oil increase production device cooling system, because through the intake pipe, air supply spare and gas cooler send into the air after the cooling in to liquid electric pulse device's the device shell, and then carry out heat exchange with each component part of inside liquid electric pulse device, realize cooling liquid electric pulse device, obtain the gas that heaies up behind the heat exchange simultaneously and will follow the exhaust hole and send out the device shell, finally make liquid electric pulse device can receive lasting cooling processing in the use, realize that it can be in the temperature range of normal work in the longer time, therefore, improve liquid electric pulse device's life and work efficiency greatly.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a diagram illustrating an overall system configuration provided in an embodiment of the present application;
FIG. 2 is a vertical cross-sectional view of a device housing provided by an embodiment of the present application;
fig. 3 is an enlarged view of the structure of the region a in fig. 2.
In the figure:
a. a hydro-electric pulse device; a1, malachite; a2, magnetic positioning equipment; a3, transformer; a4, a capacitor; a5, electrodes; b. an uphole control system;
1. a device housing; 10. a unit case; 100. a support plate; 1001 wire passing hole; 1002. air passing holes; 1003. mounting grooves; 11. a wiring hole; 12. an air inlet; 120. a connecting pipe; 13. an exhaust hole;
2. an air inlet pipe;
3. a gas supply member;
4. a gas cooler;
5. an air outlet sleeve; 50. an air outlet loop; 51. an air outlet; 52. and an air outlet pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a liquid-electricity pulse shock wave petroleum yield increasing device cooling system to solve the problem that liquid-electricity pulse petroleum yield increasing device generates high heat and can not dissipate heat in time in the related art, so that damage is caused when the device is used for a long time.
Referring to fig. 1, a cooling system of a hydroelectric pulse shock wave petroleum stimulation device for reducing the temperature in a device housing 1 of a hydroelectric pulse device a is characterized by comprising:
an air inlet pipe 2, one end of which is connected with an air inlet hole 12 arranged on the device shell 1;
a gas cooler 3;
and the air supply piece 4 is connected with the air inlet pipe 2 and is used for sending the cold air generated by the gas cooler 3 into the liquid electric pulse device a.
The electric hydraulic pulse device a is internally and sequentially provided with a faucets a1, a magnetic positioning device a2, a transformer a3, a capacitor a4 and an electrode a5 which are connected in the device shell 1, wherein the electrode a5 extends out of the device shell 1 and is positioned at the bottommost part when used in a well so as to release high-energy shock waves to the underground environment, in order to enable all parts in the electric hydraulic pulse device a to be connected with an aboveground control system b positioned on the ground, the top of the device shell 1 is provided with a wiring hole 11, and a cable passing through the wiring hole 11 is used for connecting the aboveground control system b positioned on the ground with the electric hydraulic pulse device a. Air feed spare 4 selects the electric pump in this embodiment to be used for carrying the air in to intake pipe 2 and finally send to device casing 1 in, gas cooler 3 then sets up on intake pipe 2 on ground, with the gas that carries in being used for cooling intake pipe 2, makes the gas of sending into in the device casing 1 can cool down each part.
Set up like this, through intake pipe 2, air feeder 4 and gas cooler 3 send into the air after the cooling in to the device shell of liquid electric pulse device a, and then carry out heat exchange with each component part of inside liquid electric pulse device a, realize whole cooling liquid electric pulse device a, the gaseous device shell that will follow exhaust hole 13 that obtains the intensification after the heat exchange simultaneously, finally make liquid electric pulse device a can receive lasting cooling processing in the use, realize that it can be in the temperature range of normal work in the longer time, consequently, improve liquid electric pulse device a's life and work efficiency greatly.
Optionally, referring to fig. 2 and 3, the casing of the device is provided with an exhaust hole 13, and the cooling system of the hydro-electric pulse shock wave petroleum stimulation device further comprises:
the gas outlet sleeve 5 is sleeved outside the device shell 1, a gas outlet loop 50 is formed between the gas outlet sleeve 5 and the device shell 1 at intervals, the exhaust hole 13 is communicated with the gas outlet loop 50, and a gas outlet hole 51 is formed in the gas outlet sleeve 5.
The peripheral edge of the end part of the air outlet sleeve 5 is hermetically connected with the peripheral edge of the end part of the device shell 1 close to the motor through a sealing ring, so that the air outlet loop 50 is formed outside the device shell 1 while the air outlet loop is distributed at intervals. Meanwhile, the exhaust hole 13 communicates the gas outlet ring 50 with the inside of the device case 1, and the gas outlet hole 51 communicates the gas outlet ring 50 with the outside, so that the gas inside the device case 1 is finally discharged to the outside through the gas outlet hole 51 after flowing to the gas outlet ring 50.
With the arrangement, when the gas outlet sleeve 5 discharges the gas in the device shell 1, the gas outlet loop 50 with the gas therein forms a heat insulation flow layer between the underground environment and the environment in the device shell 1, and then when the underground operation is performed, the heat of the underground hot water is taken out to the outside by the gas in the gas outlet loop 50 after being transferred to the position of the gas outlet loop 50, so that the temperature in the device shell 1 is prevented from being increased by the heat transferred to the device shell.
Alternatively, referring to fig. 2, the intake hole 12 is located at the top of the device case 1, and the exhaust hole 13 is located at the bottom of the device case 1.
By the arrangement, when the gas entering the device shell 1 through the gas inlet 12 is sent out from the gas outlet 13, all the components in the device shell 1 can be fully cooled, the internal temperature of the device shell 1 is effectively reduced, and the liquid electric pulse device a can be used for a long time.
Alternatively, referring to fig. 2, the air outlet hole 51 is located at the top of the device housing 1.
With the arrangement, the gas outlet hole 51 and the exhaust hole 13 are located at two ends of the device shell, so that gas in the gas outlet loop 50 has the largest stroke, the whole gas outlet loop 50 can be filled with gas, a good heat insulation flow layer with the same stroke is formed, and the temperature in the device shell 1 is effectively prevented from being increased by downhole heat.
Optionally, referring to fig. 3, the air outlet 51 is coaxial with the air inlet 12, the diameter of the air inlet 12 is smaller than that of the air outlet 51, a connecting pipe 120 passing through the air outlet 51 is provided, the air inlet pipe 2 is connected to the connecting pipe 120, and the air outlet 51 is connected to an air outlet pipe 52 sleeved outside the air inlet pipe 2.
Wherein, the end of the air outlet sleeve 5 far away from the faucet a1 extends to the outside of the end of the device shell 1 and is formed with a sleeve end face parallel to the end face of the device shell 1, the air outlet 51 is arranged on the sleeve end face and is coaxial with the air inlet 12 on the end face of the device shell 1, and the connecting pipe 120 connected to the air inlet 12 passes through the air outlet 51 and is connected with the air inlet pipe 2. The inner diameter of the air outlet pipe 52 is larger than the outer diameter of the air inlet pipe 2, is connected with the air outlet hole 51, and is communicated with the outside air after extending to the ground bottom surface together with the air inlet pipe 2.
Set up like this, make this liquid electric pulse device a go up the connecting pipe 120 body less, avoid outlet duct 52 and intake pipe 2 crisscross winding simultaneously more easily transfer the operation in the pit to effectively reduce the contact probability of body and environment in the pit, and then improve this liquid electric pulse device a security and the convenience of whole use.
Optionally, the air inlet pipe 2 is coated with a layer of heat insulating paint.
By the arrangement, the gas cooled by the gas cooler 3 can be minimally influenced by the gas with higher temperature in the outlet pipe 52 or the outside air during conveying in the inlet pipe 2, and then the gas can keep lower temperature to enter the device shell 1, so that the effective cooling of the components in the device shell 1 is realized, the temperature is kept in a reduced temperature range, and the service life of the liquid electric pulse device a under work is ensured.
Optionally, a thermal insulation layer is disposed on the device housing 1 for limiting heat exchange between the gas in the device body and the gas in the gas outlet ring 50.
The heat insulating layer provided on the device housing 1 in this embodiment is preferably a layer of heat insulating paint (not shown) applied to the outer wall of the device housing 1, and in other embodiments, the rest of the heat insulating material may be used.
By the arrangement, heat exchange between the gas in the device shell 1 and the external environment or the heated gas in the gas outlet channel is effectively reduced, so that the gas in the device shell 1 is ensured to be at a lower temperature to the maximum extent, and the service life of the liquid electric pulse device a under work is effectively prolonged.
Optionally, referring to fig. 3, the device housing 1 includes multiple sections of unit housings 10, each of the unit housings 10 is provided with a supporting plate 100, the unit housings 10 are detachably connected to each other at adjacent ends, so as to be used for arranging different components of the hydraulic-electric pulse device a on the supporting plate 100 in different unit housings 10, and the supporting plate 100 is provided with a wire passing hole 1001 and a gas passing hole 1002.
Set up like this, make this liquid electric pulse device a's different component parts all can obtain alone to support and place, and then disperse gravity on each section unit casing 10 of device casing 1, make the overall device more reliable and stable when using in the pit, detachable connection between unit casing 10 makes liquid electric pulse device a's each component part install in proper order and connect simultaneously, also can dismantle the separation after finishing using, the transportation of being convenient for shifts. In addition, the cooled gas vertically passes through the supporting plates 100 when flowing in the device shell 1, so that the supporting plates 100 are all at a lower temperature, and at the moment, the components placed on the supporting plates can be effectively cooled, and compared with the mutual direct connection of the components, the cooling is more facilitated, and the smooth work of the whole electrohydraulic pulse device a is further ensured.
Optionally, referring to fig. 2, a mounting groove 1003 is concavely formed on the supporting plate 100 for limiting each component of the hydraulic-electric pulse device a placed thereon.
By the arrangement, the components which are independently arranged on the support plates 100 can be stably arranged on the support plates, so that the whole device is more stable, and the smooth use of the liquid electric pulse device a is guaranteed.
Optionally, the outer wall of the air outlet sleeve 5 is coated with an abrasion-resistant layer (not shown in the figure).
Set up like this, make sleeve pipe 5 of giving vent to anger can strengthen its wearability after transferring to in the pit, reduce the possibility of damaging after the environment contact in the same pit, and then make this liquid electric pulse device a can have better stability in use in the pit, be convenient for carry out work for a long time, effectively ensure to the stifled increase production operation of removing of oil gas in the pit.
The embodiment of the application provides a theory of operation and beneficial effect of hydroelectricity pulse shock wave petroleum stimulation device cooling system do: through intake pipe 2, air supply part 4 and gas cooler 3 send into the air after the cooling in to the device shell of liquid electric pulse device a, and then carry out the heat exchange with each component part of inside liquid electric pulse device a, realize whole cooling liquid electric pulse device a, obtain the gas that heaies up after the heat exchange simultaneously and will follow exhaust hole 13 and send out the device shell, finally make liquid electric pulse device a can receive lasting cooling processing in the use, realize that it can be in the temperature range of normal work in the longer time, consequently, improve liquid electric pulse device a's life and work efficiency greatly.
In the description of the present application, it is to be understood that the forward direction of "X" in the drawings represents the right direction, and correspondingly, the reverse direction of "X" represents the left direction; the forward direction of "Y" represents forward, and correspondingly, the reverse direction of "Y" represents rearward; the forward direction of "Z" represents the upward direction, and correspondingly, the reverse direction of "Z" represents the downward direction, and the directions or positional relationships indicated by the terms "X", "Y", "Z", etc. are based on the directions or positional relationships shown in the drawings of the specification, and are only for convenience of describing and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular direction, be constructed and operated in a particular direction, and thus should not be construed as limiting the present application. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A hydroelectrical pulsed shock wave petroleum stimulation installation cooling system for reducing the temperature within the installation housing (1) of a hydroelectrical pulse installation (a), characterized in that it comprises:
one end of the air inlet pipe (2) is connected with an air inlet hole (12) formed in the device shell (1);
a gas cooler (3);
and the air supply piece (4) is connected with the air inlet pipe (2) and is used for sending cold air generated by the gas cooler (3) into the liquid electric pulse device (a).
2. The cooling system of an electrohydraulic pulsed shock wave petroleum stimulation tool according to claim 1, wherein said tool housing (1) is provided with an exhaust vent (13), said electrohydraulic pulsed shock wave petroleum stimulation tool cooling system further comprising:
the gas outlet sleeve (5) is sleeved outside the device shell (1), the gas outlet sleeve (5) and the device shell (1) form a gas outlet ring channel (50) at intervals, the exhaust hole (13) is communicated with the gas outlet ring channel (50), and a gas outlet hole (51) is formed in the gas outlet sleeve (5).
3. The cooling system of the hydro-electric pulse shock wave petroleum stimulation tool according to claim 2, wherein the air inlet hole (12) is located at the top of the tool housing (1) and the air outlet hole (13) is located at the bottom of the tool housing (1).
4. The hydroelectric pulse shock oil stimulation tool cooling system according to claim 3, wherein the gas outlet holes (51) are located at the top of the tool housing (1).
5. The cooling system of the hydro-electric pulse shock wave petroleum stimulation device according to claim 4, wherein the air outlet hole (51) is coaxial with the air inlet hole (12), the diameter of the air inlet hole (12) is smaller than that of the air outlet hole (51) and is provided with a connecting pipe (120) penetrating through the air outlet hole (51), the air inlet pipe (2) is connected with the connecting pipe (120), and the air outlet hole (51) is connected with an air outlet pipe (52) sleeved outside the air inlet pipe (2).
6. The cooling system of the hydro-electric pulse shock wave petroleum stimulation device according to claim 5, wherein a layer of heat insulation paint is coated outside the gas inlet pipe (2).
7. The cooling system for an electrohydraulic pulse shock wave petroleum stimulation tool according to claim 2, characterized in that a thermal insulation layer is provided on the tool housing (1) for limiting the heat exchange between the gas in the tool body and the gas in the gas outlet ring channel (50).
8. The cooling system of the hydroelectric pulse shock wave oil stimulation device according to claim 1, wherein the device housing (1) comprises a plurality of sections of unit housings (10), each unit housing (10) is internally provided with a support plate (100), a plurality of unit housings (10) are detachably connected at adjacent ends to be used for arranging different components of a hydroelectric pulse device (a) on the support plates (100) in different unit housings (10), and the support plates (100) are provided with line passing holes (1001) and gas passing holes (1002).
9. The cooling system of the hydroelectric pulse shock wave petroleum stimulation tool according to claim 7, wherein the support plate (100) is concavely provided with an installation groove (1003) for limiting each component part of the hydroelectric pulse tool (a) placed thereon.
10. The cooling system of the hydro-electric pulse shock wave petroleum stimulation tool according to claim 1, wherein the outer wall of the gas outlet sleeve (5) is coated with a wear resistant layer.
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| RU2733413C1 (en) * | 2020-01-14 | 2020-10-01 | Сергей Николаевич Ким | Stable working electrode for electrohydraulic and electric pulse devices |
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