CN207920560U - A kind of underground heat well segmentation gaslift well washing apparatus - Google Patents
A kind of underground heat well segmentation gaslift well washing apparatus Download PDFInfo
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- CN207920560U CN207920560U CN201820187714.1U CN201820187714U CN207920560U CN 207920560 U CN207920560 U CN 207920560U CN 201820187714 U CN201820187714 U CN 201820187714U CN 207920560 U CN207920560 U CN 207920560U
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- pressure difference
- oil pipe
- difference switch
- sealing
- underground heat
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Abstract
The utility model belongs to underground heat well washing technology field, a kind of underground heat well proposed is segmented gaslift well washing apparatus, including casing, inside pipe casing is provided with oil pipe, oil pipe upper edge oil pipe extending direction is provided with several pressure difference switches, in adjacent pressure difference switch, pressure difference set by the pressure difference switch being located above is more than pressure difference set by pressure difference switch below, pressure difference switch is ripple pressure difference switch, it further include air pump, air pump connects gas tank, gas tank passes through four-way connecting sleeve, oil pipe passes sequentially through blowout preventer, gas-liquid separation device is connected with weir case, four-way is located above casing, blowout preventer is located above casing, it solves gaslift well-flushing in the prior art and compressed air is usually poured into oil pipe bottom completion progress well-flushing, pressure is larger in oil pipe, low-power fan can not be selected, the limited technical problem of wide usage.
Description
Technical field
The utility model belongs to underground heat well washing technology field, is related to a kind of underground heat well segmentation gaslift well washing apparatus.
Background technology
Well-flushing refers to due to requirement of engineering, during workover treatment, by well-flushing medium by pumping-in equipment through pit shaft or brill
Bar injects, and the substance (liquid phase, solid phase, gas phase) in pit shaft is carried to ground, to which the medium character changed in pit shaft reaches
The process of job requirements, in the prior art gaslift well-flushing usually by compressed air pour oil pipe bottom complete carry out well-flushing, oil pipe
Middle pressure is larger, and low-power fan, wide usage can not be selected limited.
Utility model content
The utility model proposes a kind of underground heat wells to be segmented gaslift well washing apparatus, solves in the prior art
Compressed air is usually poured oil pipe bottom and completes to carry out well-flushing by gaslift well-flushing, and pressure is larger in oil pipe, can not select small-power
Wind turbine, the limited technical problem of wide usage.
What the technical solution of the utility model was realized in：
A kind of underground heat well segmentation gaslift well washing apparatus, including casing, described sleeve pipe are internally provided with oil pipe, the oil pipe
There is pressure difference switch, the pressure difference switch is several and is arranged along oil pipe extending direction, in adjacent pressure difference switch, is located above
Pressure difference switch setting value is more than pressure difference switch setting value below.
As further technical solution, the pressure difference switch is ripple pressure difference switch.
Further include air pump as further technical solution, the air pump connects gas tank, and the gas tank is connected by four-way
Described sleeve pipe, the oil pipe passes sequentially through blowout preventer, gas-liquid separation device is connected with weir case, and the four-way is located in described sleeve pipe
Side, the blowout preventer are located above described sleeve pipe.
As further technical solution, the pressure difference switch includes the valve body being arranged in described sleeve pipe, the valve body
Inside is divided into first chamber and second chamber, the ring formed between the first chamber and described sleeve pipe and the oil pipe by partition board
Sky connection, the second chamber is connected to the oil pipe, and the valve body is interior to be provided with spool by spring slide, on the partition board
It is provided with through-hole, the spool passes through the through-hole, and the spool includes the connecting rod that one end is connect with the spring, the connection
The sequentially connected sealing one of the bar other end, open portion and sealing two, the diameter of the sealing one and the sealing two
Directly equal with the through-hole, the open portion diameter is less than the through-hole.
As further technical solution, the sealing one be circumferentially both provided on the sealing two it is several recessed
Slot, the groove section are triangle.
As further technical solution, adjustment cap, the spring one end are provided with by threads turn on the valve body
It is connect with the connecting rod, the other end is connect with the adjustment cap, the adjustment cap moving direction and the telescopic spring direction
Unanimously.
As further technical solution, also it is arranged along the spool sliding type by several connection straps in the valve body
There are guide sleeve, the connecting rod to be slidably arranged in the guide sleeve, the spring, the connecting rod, the guide sleeve and institute
Spool is stated collinearly to be arranged.
It the utility model use principle and has the beneficial effect that：
1, in the utility model, in air purge well, high pressure gas is passed through in the annular space between oil pipe and casing, and will pass through
Pressure difference meets the unlocking condition of pressure difference switch, and pressure difference switch is made to open, and high pressure gas is passed through in oil pipe after pressure difference switch is opened, gas
Body, which enters in oil pipe, forms countless minute bubbles, and one edge oil pipe of bubble rises rapidly to be expanded on one side, and generated expansion work becomes
The potential energy of liquid, pushes the flowing of oily liquid in pipe, and drives the impurity clast in oil pipe to be promoted to well head and complete well-flushing,
Wherein with the supercharging of depth, overpressure increases oil pipe, and high pressure gas is passed through the ring that casing and oil pipe are formed
When aerial, the setting for being located at the first order pressure difference switch pressure difference of the top is maximum, so can first open, high pressure gas is passed through most upper
The oil pipe cut, and first dredge most upper section oil pipe, when most upper section oil pipe is dredged, most upper section oily overpressure reduces,
First order pressure difference switch is closed since pressure difference increases, and the tubing pressure of lower section reduces, depth where the pressure difference switch of the second level
Near its of pressure difference open range, and then the oil pipe between second level pressure difference switch and first order pressure difference switch cleans, clearly
Wash it is complete, second level pressure difference switch close the third level open, due to cleaning after oil pipe inside equally exist pressure, lower section
Pressure value after the difference of pressure difference switch upper desired level and upper one section of cleaning oil pipe.
By the setting of pressure difference switch, may be implemented to carry out top-down point section of cleaning to oil pipe, and then eliminate big
The use of power pressure fan has thoroughly prevented the generation that sand buries accident.It can realize no industrial electro area test, shorten examination of drawing water
It tests the time, realizes that one-trip string operating cost is cheap, while the well washing apparatus energy Reusability, state modulator is easy, does not pollute
Environment, setting are scientific and reasonable.
2, in the utility model, pressure difference switch uses ripple pressure difference switch, and ripple pressure difference switch is compact-sized, measurement range
Extensively, and can repeated action it is not vulnerable, while the sluggishness of adjustable pressure difference switch, and then the effect of well-flushing is made to reach best,
Suitable for the working environment of the utility model, setting is scientific and reasonable.
3, in the utility model, air pump compresses air in gas tank, and annular space of the gas tank between casing and oil pipe supplies
It presses, the gas-liquid mixture in oil pipe is detached by pressure separation device, and liquid is collected into the case of weir, the setting rule of four-way
Whole pipeline, blowout preventer can control the sealing of casing, so that casing half is sealed or full envelope, prevent sleeve blowout, setting scientific and reasonable.
4, in the utility model, the valve body of pressure difference switch is arranged on casing, and is two chambers by separator lined, two
Annular space of the chamber respectively between oil pipe and oil pipe and casing is connected to, and through-hole is provided on partition board, and spool passes through through-hole, spool to pass through
Spring is connect with valve body, original state, and the second chamber pressure for being connected to oil pipe is larger, and sealing two and the through-hole of spool seal,
Pressure difference switch is in off state at this time, and when pouring high pressure gas in the annular space of casing and oil pipe, first chamber pressure rise pushes
Spool moves, spool compressed spring, and when sealing two is detached with through-hole, pressure difference switch is opened, and high pressure gas is by opening at this time
The gap for opening portion and through-hole is passed through in oil pipe, and when the impurity in oil pipe is rushed out, the pressure of oil pipe reduces, spring and high pressure gas
Body pushes spool to move down, and sealing one is sealed with through-hole, and pressure difference switch is closed at this time, can be set by the preload amount of spring
The size of the pressure difference of pressure difference switch is set, the utility model pressure difference switch is simple in structure, dependable performance, and setting is scientific and reasonable.
5, in the utility model, through-hole can be reduced by sealing one and sealing two being provided with several triangular grooves
With the slide coefficient of sealing one and sealing two, make sealing one and sealing two resistance to sliding smaller in through-holes, simultaneously
The sealing effect of sealing one and sealing two is remained, setting is scientific and reasonable.
6, in the utility model, the decrement of spring can be adjusted, and then adjusting pressure can be reached by rotating adjustment cap
Difference switch magnitude of pressure differential, in adjacent pressure difference switch, the adjustment cap screw-in depth for the pressure difference switch being located above is reached than the depth of lower section
Point purpose for cutting well-flushing is arrived, setting is scientific and reasonable.
7, in the utility model, connecting rod is slidably arranged in guide sleeve, and spring, connecting rod and guide sleeve and spool are total
Line is arranged, and the sliding of valve body can be made more stable, and then the open and close of pressure difference switch is made to stablize, reduce the failure of pressure difference switch
Rate improves the reliability of pressure difference switch.
Description of the drawings
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model pressure difference switch structural schematic diagram；
In figure：1- casings, 2- oil pipes, 3- pressure difference switches, 31- valve bodies, 32- partition boards, 33- spools, 331- connecting rods, 332-
Sealing one, 333- open portions, 334- open portions two, 335- grooves, 34- springs, 35- adjustment caps, 4- air pumps, 5- gas tanks, 6-
Four-way, 7- blowout preventers, 8- gas-liquid separation devices, the weirs 9- case.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in Fig. 1~Fig. 2,
A kind of underground heat well segmentation gaslift well washing apparatus, including casing 1, casing 1 are internally provided with oil pipe 2,2 upper edge of oil pipe
2 extending direction of oil pipe is provided with several pressure difference switches 3, in adjacent pressure difference switch 3, pressure difference set by the pressure difference switch 3 that is located above
More than pressure difference set by pressure difference switch 3 below.
In the present embodiment, in air purge well, high pressure gas is passed through in the annular space between oil pipe 2 and casing 1, and pressure will be passed through
Difference meets the unlocking condition of pressure difference switch 3, and pressure difference switch 3 is made to open, and high pressure gas is passed through in oil pipe 2 after pressure difference switch 3 is opened,
Gas, which enters in oil pipe 2, forms countless minute bubbles, and one edge oil pipe 2 of bubble rises rapidly to be expanded on one side, generated expansion work
Become the potential energy of liquid, push the flowing of liquid in oil pipe 2, and drives the impurity clast in oil pipe 2 to be promoted to well head completion and wash
Well,
Wherein with the supercharging of depth, overpressure increases oil pipe 2, and high pressure gas is passed through what casing 1 and oil pipe 2 were formed
When in annular space, the setting for being located at 3 pressure difference of first order pressure difference switch of the top is maximum, so can first open, high pressure gas is passed through
Most upper section oil pipe 2, and first dredging most upper section oil pipe 2, when most upper section oil pipe 2 is dredged, most upper section 2 internal pressure of oil pipe
Power reduces, and first order pressure difference switch 3 is closed since pressure difference increases, and 2 pressure reduction of oil pipe of lower section, second level pressure difference switch
Near its of pressure difference of 3 place depth opens range, and then the oil pipe 2 between second level pressure difference switch 3 and first order pressure difference switch 3
Cleaned, cleaning finishes, and second level pressure difference switch 3 is closed the third level and opened, due to cleaning after the inside of oil pipe 2 it is same
There are pressure, the pressure value after the difference of 3 upper desired level of lower section pressure difference switch and the cleaning of upper one section of oil pipe 2.
By the setting of pressure difference switch 3, may be implemented to carry out top-down point section of cleaning to oil pipe 2, and then eliminate
The use of high-power pressure fan has thoroughly prevented the generation that sand buries accident.It can realize that no industrial electro area test, shortening are drawn water
Test period realizes that one-trip string operating cost is cheap, while the well washing apparatus energy Reusability, and state modulator is easy, not dirty
Environment is contaminated, setting is scientific and reasonable.
Further, pressure difference switch 3 is ripple pressure difference switch 3.
In the present embodiment, pressure difference switch 3 is using ripple pressure difference switch 3, and ripple pressure difference switch 3 is compact-sized, measurement range
Extensively, and can repeated action it is not vulnerable, while the sluggishness of adjustable pressure difference switch 3, and then the effect of well-flushing is made to reach best,
Suitable for the working environment of the utility model, setting is scientific and reasonable.
Further, further include air pump 4, air pump 4 connects gas tank 5, and gas tank 5 is led to successively by 6 connecting sleeve 1 of four-way, oil pipe 2
It crosses blowout preventer 7, gas-liquid separation device 8 and weir case 9 to connect, four-way 6 is located at 1 top of casing, and blowout preventer 7 is located at 1 top of casing.
In the present embodiment, air pump 4 compresses air in gas tank 5, and annular space of the gas tank 5 between casing 1 and oil pipe 2 supplies
It presses, the gas-liquid mixture in oil pipe 2 is detached by pressure separation device, and liquid is collected into weir case 9, and four-way 6 is set
Pipeline is set regular, blowout preventer 7 can control the sealing of casing 1, make 1 half envelope of casing or full envelope, prevent sleeve blowout, setting section
It is reasonable to learn.
Further, pressure difference switch 3 includes the valve body 31 that is arranged on casing 1, and it is the to be divided by partition board 32 inside valve body 31
One chamber and second chamber, the annular space formed between first chamber and described sleeve pipe 1 and oil pipe 2 are connected to, and second chamber connects with oil pipe 2
It is logical, spool 33 is provided with by the sliding of spring 34 in valve body 31, through-hole is provided on partition board 32, spool 33 passes through through-hole, spool 33
Including the connecting rod 331 that one end is connect with spring 34, the sequentially connected sealing 1 of 331 other end of connecting rod, open portion
333 and sealing two, sealing 1 and the diameter of sealing two are directly equal with through-hole, and 333 diameter of open portion is less than logical
Hole.
In the present embodiment, the valve body 31 of pressure difference switch 3 is arranged on casing 1, and is divided into two chambers by partition board 32, and two
Annular space of a chamber respectively between oil pipe 2 and oil pipe 2 and casing 1 is connected to, and through-hole is provided on partition board 32, and spool 33 passes through logical
Hole, spool 33 are connect by spring 34 with valve body 31, original state, and the second chamber pressure for being connected to oil pipe 2 is larger, spool 33
Sealing two is sealed with through-hole, and pressure difference switch 3 is in off state at this time, and casing 1 pours high pressure gas with the annular space of oil pipe 2
When, first chamber pressure rise pushes spool 33 to move, 33 compressed spring 34 of spool, when sealing two is detached with through-hole, pressure
Difference switch 3 is opened, and high pressure gas is passed through by the gap of open portion 333 and through-hole in oil pipe 2 at this time, the impurity in oil pipe 2
When being rushed out, the pressure of oil pipe 2 reduces, and spring 34 pushes spool 33 to move down with high pressure gas, sealing 1 and through-hole
Sealing, the closing of pressure difference switch 3, the size of the pressure difference of pressure difference switch 3, this practicality can be arranged by the preload amount of spring 34 at this time
Novel pressure difference switch 3 is simple in structure, dependable performance, and setting is scientific and reasonable.
Further, several grooves 335 are circumferentially both provided on sealing 1 and sealing two, 335 section of groove is
Triangle.
In the present embodiment, be provided on sealing 1 and sealing two several triangular grooves 335 can reduce it is logical
The slide coefficient in hole and sealing 1 and sealing two, making sealing 1 and sealing two, resistance to sliding is more in through-holes
It is small, while the sealing effect of sealing 1 and sealing two is remained, setting is scientific and reasonable.
Further, adjustment cap 35 being provided with by threads turn on valve body 31,34 one end of spring is connect with connecting rod 331,
The other end is connect with adjustment cap 35, and 35 moving direction of adjustment cap is consistent with 34 telescopic direction of spring.
In the present embodiment, the decrement of spring 34 can be adjusted, and then adjusting pressure can be reached by rotating adjustment cap 35
3 magnitude of pressure differential of difference switch, in adjacent pressure difference switch 3,35 screw-in depth of adjustment cap for the pressure difference switch 3 being located above is than lower section
It is deep, achieve the purpose that a point section well-flushing, setting are scientific and reasonable.
Further, 33 sliding type of spool is also provided with guide sleeve, connecting rod 331 by several connection straps in valve body 31
It is slidably arranged in guide sleeve, spring 34, connecting rod 331, guide sleeve and spool 33 are collinearly arranged.
In the present embodiment, connecting rod 331 is slidably arranged in guide sleeve, and spring 34, connecting rod 331 and guide sleeve and valve
Core 33 is collinearly arranged, and the sliding of valve body 31 can be made more stable, and then the open and close of pressure difference switch 3 is made to stablize, and reduces pressure difference
The failure rate of switch 3 improves the reliability of pressure difference switch 3.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (7)
1. a kind of underground heat well is segmented gaslift well washing apparatus, which is characterized in that including casing (1), be arranged inside described sleeve pipe (1)
There are oil pipe (2), the oil pipe (2) to have pressure difference switch (3), the pressure difference switch (3) is for several and along oil pipe (2) extending direction
It is arranged, in adjacent pressure difference switch (3), pressure difference switch (3) setting value being located above is more than pressure difference switch (3) setting below
Value.
2. a kind of underground heat well according to claim 1 is segmented gaslift well washing apparatus, which is characterized in that the pressure difference switch
(3) it is ripple pressure difference switch.
3. a kind of underground heat well according to claim 1 is segmented gaslift well washing apparatus, which is characterized in that further include air pump
(4), air pump (4) the connection gas tank (5), the gas tank (5) connect described sleeve pipe (1), the oil pipe (2) by four-way (6)
Blowout preventer (7), gas-liquid separation device (8) and weir case (9) connection, the four-way (6) is passed sequentially through to be located in described sleeve pipe (1)
Side, the blowout preventer (7) are located above described sleeve pipe (1).
4. a kind of underground heat well according to claim 1 is segmented gaslift well washing apparatus, which is characterized in that the pressure difference switch
(3) include the valve body (31) being arranged in described sleeve pipe (1), the valve body (31) is internal to be divided into first chamber by partition board (32)
And second chamber, the annular space formed between the first chamber and described sleeve pipe (1) and the oil pipe (2) are connected to, second chamber
Room is connected to the oil pipe (2), and spring (34) sliding is provided with spool (33), the partition board (32) in the valve body (31)
On be provided with through-hole, the spool (33) passes through the through-hole, and the spool (33) includes that one end is connect with the spring (34)
Connecting rod (331), the sequentially connected sealing one (332) of connecting rod (331) other end, open portion (333) and sealing
Two (334), the sealing one (332) and the diameter of the sealing two (334) and the through-hole are directly equal, the unlatching
Portion (333) diameter is less than the through-hole.
5. a kind of underground heat well according to claim 4 is segmented gaslift well washing apparatus, which is characterized in that the sealing one
(332) and on the sealing two (334) several grooves (335) are circumferentially both provided with, groove (335) section is triangle
Shape.
6. a kind of underground heat well according to claim 5 is segmented gaslift well washing apparatus, which is characterized in that the valve body (31)
Upper that threads turn is provided with adjustment cap (35), described spring (34) one end is connect with the connecting rod (331), the other end and
Adjustment cap (35) connection, adjustment cap (35) moving direction are consistent with the spring (34) telescopic direction.
7. a kind of underground heat well according to claim 4 is segmented gaslift well washing apparatus, which is characterized in that the valve body (31)
The spool (33) sliding type is also inside provided with guide sleeve, connecting rod (331) the sliding setting by several connection straps
In the guide sleeve, the spring (34), the connecting rod (331), the guide sleeve and the spool (33) are collinearly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820187714.1U CN207920560U (en) | 2018-02-02 | 2018-02-02 | A kind of underground heat well segmentation gaslift well washing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820187714.1U CN207920560U (en) | 2018-02-02 | 2018-02-02 | A kind of underground heat well segmentation gaslift well washing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207920560U true CN207920560U (en) | 2018-09-28 |
Family
ID=63602666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820187714.1U Expired - Fee Related CN207920560U (en) | 2018-02-02 | 2018-02-02 | A kind of underground heat well segmentation gaslift well washing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207920560U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115573880A (en) * | 2022-11-11 | 2023-01-06 | 成都西南蜀华能源科技有限公司 | Oil stain blockage removal cleaning agent pumping system and method |
-
2018
- 2018-02-02 CN CN201820187714.1U patent/CN207920560U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115573880A (en) * | 2022-11-11 | 2023-01-06 | 成都西南蜀华能源科技有限公司 | Oil stain blockage removal cleaning agent pumping system and method |
| CN115573880B (en) * | 2022-11-11 | 2024-05-24 | 成都西南蜀华能源科技有限公司 | Oil stain blocking removal cleaning agent pumping system and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180928 Termination date: 20200202 |
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| CF01 | Termination of patent right due to non-payment of annual fee |