CN107476782A - A kind of chemical solution injection device - Google Patents
A kind of chemical solution injection device Download PDFInfo
- Publication number
- CN107476782A CN107476782A CN201710880075.7A CN201710880075A CN107476782A CN 107476782 A CN107476782 A CN 107476782A CN 201710880075 A CN201710880075 A CN 201710880075A CN 107476782 A CN107476782 A CN 107476782A
- Authority
- CN
- China
- Prior art keywords
- blow vent
- main pipeline
- cylinder
- raw material
- contiguous block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000002347 injection Methods 0.000 title claims abstract description 25
- 239000007924 injection Substances 0.000 title claims abstract description 25
- 239000000126 substance Substances 0.000 title claims abstract description 10
- 239000000243 solution Substances 0.000 title claims abstract description 8
- 239000013064 chemical raw material Substances 0.000 claims abstract description 24
- 230000002093 peripheral effect Effects 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 abstract description 6
- 239000010720 hydraulic oil Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 241000282693 Cercopithecidae Species 0.000 description 1
- 210000002310 elbow joint Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
- E21B37/06—Methods or apparatus for cleaning boreholes or wells using chemical means for preventing or limiting, e.g. eliminating, the deposition of paraffins or like substances
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The invention belongs to chemical mechanical means technical field, specifically a kind of chemical solution injection device.The present invention includes the main pipeline led in stomata, and the main pipeline is connected with chemical raw material feeding mouth, and wherein main pipeline also connects with blow vent, and the drive device for opening and closing the blow vent is set at the blow vent.The present invention opens blow vent by drive device first, air in injection device pipeline is discharged from blow vent, then blow vent is closed by drive device, by chemical raw material by chemical raw material feeding mouth through in main pipeline injection stomata, realizing the purpose that chemical raw material is rapidly injected in stomata；After the completion of operation, well head is closed, blow vent is opened by drive device, inputs compressed air from blow vent, compressed air can promote the residual liquid in injection device rapid and neatly discharge.
Description
Technical field
The invention belongs to chemical mechanical means technical field, specifically a kind of chemical solution injection device.
Background technology
Winter field temperature is colder, and China's Oil Field cable operation in wellhead assembly frequently encounters ice and blocked up.For
The ice that effective pre- waterproofing compound is formed blocks up, and makes cable normal operation, can effectively prevent cable jam in use, prevent
Gas blowout accident occurs, and realizes safe construction, oil field extensively using chemical raw material as hydrate inhibitor, by injection device by its
Inject in stomata, so as to remove hydrate, avoid compound from forming the generation that ice blocks up phenomenon.
And the existing chemical raw material injection device applied to oilfield only has the feeding mouth of chemical raw material, using
In, the speed of chemical raw material injection is slow, and the amount for injecting chemical raw material not can determine that；After wellhead assembly fulfils assignment, discharge pipe
Interior liquid velocity is slow, and discharge is not clean, influences construction speed.
The content of the invention
The purpose of the present invention is to propose to a kind of chemical solution injection device.
A kind of chemical solution injection device, including towards the main pipeline in stomata, the main pipeline and chemical raw material pan feeding
Mouth connection, wherein main pipeline is also connected with blow vent, and the drive device for opening and closing the blow vent is set at the blow vent.
Preferably, the drive device is cylinder, and the main pipeline is connected by branch pipe(tube) with the inner chamber of axle sleeve, described interior
There is the blow vent, the piston rod stretched out outside the cylinder coordinates with the bore seal, can be described on the inwall of chamber
Move within lumens are turned on and off the blow vent；There is the fluid-through port of feed flow force feed disengaging on the cylinder wall of the cylinder.
Preferably, the main pipeline is arranged on the inside of apparatus main body, and one end of the branch pipe(tube) is arranged in described device
Connected in main body with the main pipeline, its other end is arranged in contiguous block and connected with the inner chamber of the axle sleeve；Described device master
Body is connected with the contiguous block, and sets pipe protection axle sleeve, the pipe protection axle in junction, the outside of the branch pipe(tube)
The outer peripheral face of set coordinates with the sealing of the inner peripheral surface of described device main body and the contiguous block, one end end face of the cylinder with it is described
The inner peripheral surface sealing of contiguous block coordinates, and the inner peripheral surface sealing of the outer peripheral face of the axle sleeve and the contiguous block coordinates.
The invention provides a kind of oil field chemical raw material injection device, including towards the main pipeline in stomata, main pipeline
Connected respectively with chemical raw material feeding mouth and blow vent, and the drive device for opening and closing the blow vent is set at blow vent.
Blow vent is opened by drive device first, the air in injection device pipeline is discharged from blow vent, then filled by driving
Closing blow vent is put, by chemical raw material by chemical raw material feeding mouth through in main pipeline injection stomata, realizing quick in stomata
Inject the purpose of chemical raw material.After the completion of operation, well head is closed, blow vent is opened by drive device, inputs and presses from blow vent
Contracting air, compressed air can promote the residual liquid in injection device rapid and neatly discharge.In addition, the chemistry of the present invention is former
Expect at feeding mouth, screw thread connects between external double male joint, elbow and snap joint successively respectively at blow vent and at fluid-through port
Connect；In addition, setting housing screw on cylinder, it can aid in dismantling cylinder in the case of no pressure, be not only simple in structure, and dismount
It is convenient.
Embodiment
The main pipeline 1 that the oil field includes leading in stomata with chemical raw material injection device, main pipeline 1 are arranged on apparatus main body
5 inside, apparatus main body 5 are connected by holding screw 12 with contiguous block 6, and main pipeline 1 connects with chemical raw material feeding mouth, chemistry
Double male joint 8, elbow 9, check valve 11, snap joint 10 and chemical raw material injection pipeline are circumscribed with raw material feeding mouth successively,
And it is threadedly coupled each other.
Main pipeline 1 is connected by branch pipe(tube) 3 with the inner chamber 41 of axle sleeve 4, i.e. one end of branch pipe(tube) 3 is arranged in apparatus main body 5
Interior to be connected with main pipeline 1, its other end is arranged in contiguous block 6 and connected with inner chamber 41, has blow vent on the inwall of inner chamber 41,
Blow vent is 1/4NPT outlets, external double male joint 8, elbow 9, snap joint each other by threaded connection successively at blow vent
10 gentle pressure pipelines.
Inner chamber 41 is cone structure, and inner chamber 41 is with stretching out the cone match of piston rod 21 outside cylinder 2, the cylinder body of cylinder 2
There is the fluid-through port of feed flow force feed disengaging, fluid-through port exports for 1/4NPT, external each other by screw thread successively at fluid-through port on wall
Double male joint 8, elbow 9, snap joint 10 and the hydraulic line of connection.Meanwhile the inside of cylinder 2 sets spring 22, spring 22
Fixed on the cylinder 2 by cylinder cap 23.
By being pumped into by fluid-through port or being pumped out hydraulic oil, under the elastic force effect of the contained spring 22 of cylinder 2, piston rod is driven
21 make straight reciprocating motion in inner chamber 41, so as to realize being turned on and off for blow vent.
In the junction of apparatus main body 5 and contiguous block 6, the outside of branch pipe(tube) 3 sets pipe protection axle sleeve 7, pipe protection
Sealed and coordinated by seal 13 between the outer peripheral face and the inner peripheral surface of apparatus main body 5 and contiguous block 6 of axle sleeve 7；Meanwhile cylinder 2
The inner peripheral surface of bottom end face and contiguous block 6 pass through the sealing of seal 13 and coordinate, the outer peripheral face of axle sleeve 4 and the inner circumferential of contiguous block 6
Face is sealed by seal 13 to be coordinated, and seal 13 is preferably sealing ring, and it is good that above sealing structure make it that injection device has
Good air-tightness, securely and reliably.
Housing screw 24 is set on cylinder 2, can first back out the compression of compression cylinder 2 with inner hexagon spanner in the case of without pressure
Screw 24, cylinder 2 is backed out, reuse double offset ring spanner or monkey wrench unloads the cylinder cap 23 on top, you can Fast Installation and dismounting
Spring 22 and piston, carry out replacing seal；In addition, the holding screw 12 of lower connecting block 6 is unloaded using inner hexagon spanner, it is replaceable
Pipe protection axle sleeve 7 and corresponding seal, conveniently carry out the parts of maintenance and more changing device.
Before chemical raw material is injected, the use of manual pump is that fluid-through port is pumped into hydraulic oil, promotes and live in the presence of hydraulic oil
Stopper rod 21 moves up holddown spring 22, separates the conical surface seal of piston rod 21 and axle sleeve 4, opens blow vent, gas
To be discharged by blow vent, the operation of convenient follow-up filling chemical raw material is more rapidly carried out.Once there is liquid outflow, illustrate note
The air discharge entered in device is clean, and the pressure of manual pump is laid down, discharges hydraulic pressure, is pushed down under the elastic force effect of spring 22
Piston bar 21, make piston rod 21 and the close fit of inner chamber 41, so as to close blow vent.
Then, chemical raw material is injected in stomata by chemical raw material feeding mouth using chemical raw material injection pump, after progress
Continuous operation.After the completion of operation, well head is closed, after releasing the pressure in injection device, to promote the Liquid Residue in injection device
Body is discharged rapidly, manual pump can be used to be pumped into hydraulic oil for fluid-through port, is opened and is inputted compressed air, pressure from blow vent after blow vent
Contracting air can promote the residual liquid in injection device rapid and neatly discharge.
The present invention is controlled by hydraulic hand pump, reaches the function of sealing and ventilation, and snap joint and hydraulic line are connected
Connect, remote control is realized by hydraulic pressure, is not only simple in structure, it is easy to operate, securely and reliably, and make ring around construction operation
Border is advantageous to environmental protection from pollution.
Inventive drive means are not limited to above-mentioned air cylinder structure, can be a simple valve, pass through control valve
The switch of door opens and closes blow vent, can also be other structures, as long as the opening and closing of blow vent can be realized i.e.
Can.
Claims (2)
1. a kind of chemical solution injection device, including towards the main pipeline in stomata, the main pipeline and chemical raw material feeding mouth
Connection, it is characterised in that the main pipeline also connects with blow vent, is set at the blow vent and opens and closes the blow vent
Drive device, the drive device are cylinder, and the main pipeline is connected by branch pipe(tube) with the inner chamber of axle sleeve, the inner chamber it is interior
There is the blow vent, the piston rod stretched out outside the cylinder coordinates with the bore seal, can be in the interior intracavitary on wall
Motion is turned on and off the blow vent；There is the fluid-through port of feed flow force feed disengaging on the cylinder wall of the cylinder.
2. a kind of chemical solution injection device according to claim 1, it is characterised in that the main pipeline is arranged on device
The inside of main body, one end of the branch pipe(tube) is arranged in described device main body to be connected with the main pipeline, and its other end is worn
Connected in the inner chamber in contiguous block with the axle sleeve；Described device main body is connected with the contiguous block, and in junction, the branch
The outside of pipeline sets pipe protection axle sleeve, outer peripheral face and described device main body and the contiguous block of the pipe protection axle sleeve
Inner peripheral surface sealing coordinate, one end end face of the cylinder and the inner peripheral surface sealing of the contiguous block coordinate, it is characterised in that institute
The inner peripheral surface sealing of the outer peripheral face and the contiguous block of stating axle sleeve coordinates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710880075.7A CN107476782A (en) | 2017-09-26 | 2017-09-26 | A kind of chemical solution injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710880075.7A CN107476782A (en) | 2017-09-26 | 2017-09-26 | A kind of chemical solution injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107476782A true CN107476782A (en) | 2017-12-15 |
Family
ID=60586397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710880075.7A Withdrawn CN107476782A (en) | 2017-09-26 | 2017-09-26 | A kind of chemical solution injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107476782A (en) |
-
2017
- 2017-09-26 CN CN201710880075.7A patent/CN107476782A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171215 |
|
| WW01 | Invention patent application withdrawn after publication |