CN206309289U - Acid gas well flow string inwall medium corrosion-resistant automatic painting apparatus - Google Patents
Acid gas well flow string inwall medium corrosion-resistant automatic painting apparatus Download PDFInfo
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- CN206309289U CN206309289U CN201621082873.2U CN201621082873U CN206309289U CN 206309289 U CN206309289 U CN 206309289U CN 201621082873 U CN201621082873 U CN 201621082873U CN 206309289 U CN206309289 U CN 206309289U
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- medium corrosion
- pipe nipple
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- flow string
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Abstract
The utility model discloses a kind of acid gas well flow string inwall medium corrosion-resistant automatic painting apparatus, including medium corrosion-resistant injected system, smearing ball injected system, smearing control and recovery and processing system, improvement christmas tree；The improvement christmas tree is the small four-way flange of two for connecting from top to bottom and a big four flange；The medium corrosion-resistant injected system includes medium corrosion-resistant storage tank, injection pump, annular space high-voltage power supply, flowmeter, pressure gauge, ground injection pipeline, underground medium corrosion-resistant injection pipe nipple；The smearing ball injected system includes that intelligent sphere, pitching cylinder, underground are blocked pipe nipple；Pitching cylinder is connected on the small four-way flange in improvement christmas tree middle part, and underground pipe nipple of blocking is serially connected in flow string bottom；Control and the recovery and processing system smeared includes air-flow velocity and intelligent sphere motion control device, computer control unit, separating and reclaiming device.The utility model can significantly improve corrosion inhibiter spraying operation effect, suitable long-term use.
Description
Technical field
The utility model is related to gas well plant maintenance technical field, and in particular to a kind of acid gas well flow string inwall resists
Corrosive medium automatic painting apparatus and its application method.
Background technology
During acid gas field is exploited, would generally be containing hydrogen sulfide, elementary sulfur, carbon dioxide, water, molten in natural gas
Solution oxygen etc. is with corrosivity or accelerates the material of corrosive pipeline, and being contacted with flow string inwall causes the flow string to corrode
Effect.Particularly hydrogen sulfide acts on corrosion of metal the strongest, not only electrochemical corrosion, also Hydrogen Brittleness Phenomena.With
The growth of recovery time, flow string inner wall corrosion situation is further deepened, cause flow string corrode it is thinning, penetrate, or even
There is obscission, have a strong impact on production efficiency, cause huge economic loss.
The corrosiveness of the materials such as hydrogen sulfide can be effectively reduced to production pipe string internal wall injection medium corrosion-resistant, it is traditional
Mode is usually corrosion inhibiter is uniformly distributed on each position by protection equipment, therefore, usually in advance will with diluent
Corrosion inhibiter dissolving, mix well, then using press device such as pump under corrosion inhibiter injection well, will make its be evenly distributed to pipeline and other
Downhole tool surface, for the oil jacket annular space for not adding packer, by the way of continuous or intermittent pump, pump is carried out to annular space
Note, corrosion inhibiter is brought into oil pipe after reaching annular space bottom by the hydrocarbon fluidses for producing, and is evenly distributed on tube inner wall upwards.
But in practice of construction, because flow string is located underground as deep as hundreds if not thousands of rice, traditional anticorrosive Jie
Matter injection mode has that relatively costly, smearing is uneven, has a large amount of spray to smear, and is only applicable to newly lower giving birth to mostly
Produce tubing string and find the flow string corrosion control after corrosion.Uneven, medium corrosion-resistant is smeared in order to solve medium corrosion-resistant
Consumption is big, the problems such as smear inefficiency, it is necessary to designing one kind can effectively improve the painting of flow string inwall medium corrosion-resistant
Smear efficiency, and the suitably automatic paint-on technique of long-term use.Calculated by investigation and substantial amounts of numerical simulation, found in anti-corruption
Appropriately sized spheroid is injected in the fluid of erosion medium and extraction gas, medium corrosion-resistant can be significantly improved in flow string
The adhesiving effect of wall.Based on above technical background, a kind of acid gas well flow string inwall medium corrosion-resistant of utility model
Automatic paint-on technique and device, are not sprayed with improving medium corrosion-resistant spray efficiency, reduction by injecting ball and smear region and make smearing
Evenly, and the kinetic energy of extraction gas is made full use of to realize the even application of full well section.
Utility model content
For problem above, the utility model is applied automatically there is provided a kind of acid gas well flow string inwall medium corrosion-resistant
Device and method is smeared, medium corrosion-resistant can be on the ground realized and control in the spraying of flow string internal face, it is easy to operate
Simply, problem present in background technology can effectively be solved.
To achieve the above object, the technical solution of the utility model is realized in：
A kind of acid gas well flow string inwall medium corrosion-resistant automatic painting apparatus, including medium corrosion-resistant injection system
System, smearing ball injected system, smearing control and recovery and processing system, improvement christmas tree；The improvement christmas tree is for from top to bottom
Two small four-way flanges and a big four flange of connection；
The medium corrosion-resistant injected system include medium corrosion-resistant storage tank, injection pump, annular space high-voltage power supply, flowmeter,
Pressure gauge, ground injection pipeline, underground medium corrosion-resistant injection pipe nipple；The media storage tank is by injection pump and annular space high pressure
Source is parallel to ground injection pipeline, then by the big four flange of flowmeter Innovation of Connection christmas tree bottom, flowmeter and adopts
Pressure gauge is provided between gas tree, medium corrosion-resistant injection pipe nipple in underground is arranged on flow string bottom；
The smearing ball injected system includes that intelligent sphere, pitching cylinder, underground are blocked pipe nipple；The pitching cylinder is connected to improvement
On small four-way flange in the middle of christmas tree, pipe nipple is blocked installed in flow string bottom in underground, above injection pipe nipple；
Control and the recovery and processing system smeared includes air-flow velocity and intelligent sphere motion control device, computer control list
Unit, separating and reclaiming device；Air-flow velocity and intelligent sphere motion control device are arranged in separating and reclaiming device and improvement christmas tree
Between small four-way flange connection pipeline in, computer control unit connect and control air-flow velocity and intelligent sphere motion control dress
Put；
The medium corrosion-resistant injected system is injected downwardly into medium corrosion-resistant by the annular space between flow string and sleeve pipe,
Medium corrosion-resistant is injected pipe nipple and is entered in flow string by underground medium corrosion-resistant.
Further, the improvement christmas tree compares conventional christmas tree, in the middle of former big four flange and small four-way flange
Concatenate a small four-way flange, middle small four-way flange or so and be respectively arranged at two ends with valve group B and valve group C, the company of being respectively intended to
Pitching cylinder and separating and reclaiming device are connect, as pitching and the passage of recycling；Big four left end is provided with valve group E, for connecting
Medium corrosion-resistant injected system, for injecting medium corrosion-resistant to the annular space between flow string and sleeve pipe.
Further, the injection pipe nipple is serially connected in the production pipe shell of column above downhole packer, and injection pipe nipple middle part sets
There is the extension diameter section for thickening laterally, extension diameter section is provided with the check valve of ecto-entad circulation, only allow medium corrosion-resistant from life
The annular space produced between tubing string and sleeve pipe is flowed into flow string, does not allow reverse flow, and check valve quantity is at least one.
Further, the pitching cylinder for smearing ball injected system is provided with closure, is shut after intelligent sphere input close
Capping, can effectively seal, it is ensured that intelligent sphere smoothly falls in christmas tree is improved.
Further, the underground for smearing ball injected system pipe nipple of blocking is serially connected in underground medium corrosion-resistant injection pipe nipple
The production pipe shell of column of top, underground block pipe nipple middle part be provided with to inner side thicken undergauge section, intelligent sphere with diameter greater than undergauge section
Internal diameter.
Further, the air-flow velocity and intelligent sphere motion control device and computer control unit are using wirelessly or non-wirelessly
Communication mode.
Further, set in the air-flow velocity and intelligent sphere motion control device for smearing control and recovery and processing system
Flow control valve is equipped with, the flow velocity of fluid can be controlled, so as to reach the direction of motion and speed of control intelligent sphere, the device is also
Signal receiver and signal projector are built-in with, can be adopted with computer control unit real-time Transmission, its mounting means and position
With method generally in the art.
Further, separating and reclaiming device side upper end is provided with separating and reclaiming device outlet 1#, and what is flowed out is main
It is extraction gas, is directly connected on gas production main line, separating and reclaiming device side lower end is provided with separating and reclaiming device outlet
2#, is mainly used in the recovery of medium corrosion-resistant, and the separating and reclaiming device bottom is provided with separating and reclaiming device outlet 3#, for intelligence
The recovery of energy ball.
Further, the intelligent sphere is internally provided with sender unit, air-flow velocity and intelligent sphere motion control
Device can send the power of signal to carry out position, the isoparametric monitoring of speed and transmission by intelligent sphere.
The utility model also provides a kind of use acid gas well flow string inwall medium corrosion-resistant automatic painting apparatus
Method, concrete operations are as follows：
1) installation of acid gas well flow string inwall medium corrosion-resistant automatic painting apparatus is carried out first, to improving gas production
Tree is assembled, and connection medium corrosion-resistant injected system, smearing ball injected system, smearing control and recycling system respectively
System, installs underground medium corrosion-resistant injection pipe nipple additional to flow string and underground is blocked pipe nipple, after the completion of should be according to medium corrosion-resistant
The connection of injected system, smearing ball injected system, smearing control and three parts of recovery and processing system is installed and adjusted
Examination；
2) when using, the injection of medium corrosion-resistant is carried out by medium corrosion-resistant injected system first；When underground is anticorrosive
After the check valve of medium injection pipe nipple is opened, intelligent sphere is delivered by smearing ball injected system, underground pipe nipple of blocking can be prevented
Intelligent sphere falls into shaft bottom；When intelligent sphere one enters in flow string, the air-flow velocity and intelligence of control and recovery and processing system are smeared
Energy ball motion control device begins to work, and the moving situation of intelligent sphere is controlled by adjusting air-flow velocity, makes it according to institute
Speed is needed to move up or move up and down repeatedly, to improve the scribble effect of medium corrosion-resistant；Separating and reclaiming device is in operation
Cheng Zhonghui plays a part of to separate extraction gas and medium corrosion-resistant, and the recovery of intelligent sphere is carried out after the completion of operation；
3) after the completion of smearing operation, it is only necessary to recover normal gas production operation by closing and opening corresponding valve, under
Medium corrosion-resistant injection operation once will not need to reinstall equipment, i.e., the device and method can realize acid gas well
Fixed tubular column, periodically or non-periodically many subjobs, reduce flow string corrosion and damage probability, extend safely, quickly, at low cost
Tubing string service life.
Compared with prior art, the beneficial effects of the utility model are：
1st, the utility model is by setting medium corrosion-resistant injected system, smearing ball injected system, smearing control and recovery
Processing system, realizes the delivery and recovery of intelligent sphere and injection and the separation and recovery of medium corrosion-resistant；
2nd, intelligent sphere can directly change the flow regime of fluid-mixing, medium corrosion-resistant is more contacted with tube wall, from
And the corrosion inhibiter spraying effect of flow string inwall is improved, flow velocity and ball control device can control the intelligent sphere direction of motion and speed
Degree, can be such that intelligent sphere is moved back and forth in flow string when needing, and the anti-of flow string inwall is improved to greatest extent
Corrosive medium spraying effect；
3rd, separator can not only play a part of to reclaim ball, can also isolate anticorrosive Jie in fluid-mixing
Matter, it is ensured that do not impacted to subsequent process flow；
4th, package unit and technology maximally utilize existing equipment and are transformed, and the influence to normal operation is smaller, real
The periodically or non-periodically multiple spraying operation to acid gas well fixed tubular column is showed, can effectively protect flow string, reduce peace
Full hidden danger, increase economic efficiency, long-term use after suitable once mounting.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation that pipe nipple is injected in underground；
Fig. 3 is the B-B cross-sectional views of Fig. 2；
Fig. 4 is partial enlarged drawing at the I of Fig. 3；
Fig. 5 is to block the structural representation of pipe nipple underground；
Fig. 6 is the A-A cross-sectional views of Fig. 5；
Fig. 7 is device valve numbering schematic diagram；
Fig. 8 is the velocity schematic diagram that fluid is moved with ball in flow string.
In Fig. 1：1- improves christmas tree；2- medium corrosion-resistant storage tanks；3- injection pumps；4- annular space high-voltage power supplies；5- flowmeters；
6- pressure gauges；Pipeline is injected on 7- ground；8- undergrounds medium corrosion-resistant injection pipe nipple；9- intelligent spheres；10- pitchings cylinder；11- undergrounds keep off
Ball pipe nipple；12- air-flow velocities and intelligent sphere motion control device；13- computer control units；14- separating and reclaiming devices；141- points
1# is exported from retracting device；142- separating and reclaiming devices export 2#；143- separating and reclaiming devices export 3#；15- flow strings；
16- sleeve pipes；17- downhole packers；40- shaft bottoms；41- reservoirs；42- ground；Flow string, sleeve pipe, downhole packer, injection are short
Pipe nipple is blocked in below ground in section, underground, and other devices are more than ground；Improve christmas tree and be followed successively by two from top to bottom
Small four-way flange and a big four flange；Dotted line between flow velocity and ball control device and host computer represents that both pass through nothing
Line or wired mode are communicated to connect；The predominantly extraction gas flowed out in separating and reclaiming device outlet 1#, is directly connected to and adopts
On gas main line, separating and reclaiming device outlet 2# is mainly used in the recovery of medium corrosion-resistant, and separating and reclaiming device outlet 3# is intelligence
The passage that ball is reclaimed.
In Fig. 2,3,4：18- injects pipe nipple male thread；19- injects pipe nipple box thread；20- outer walls thick section；21- is unidirectional
Valve；22- valve elements；23- springs；Check valve valve body is integrated in outer wall thick section, and this section of center wall thickness should meet check valve length to be wanted
Ask, and thick section is streamlined, can reduce fluid to injecting the erosion of pipe nipple outer wall；Injection pipe nipple overall dimensions and flow string
Pairing, directly can be serially connected on flow string.
In Fig. 5,6：24- blocks underground pipe nipple male thread；25- blocks underground pipe nipple box thread；26- oncuses section；It is interior
The internal diameter of wall thick section should be less than the diameter of intelligent sphere, and the section is using streamlined, plays reduction fluid and underground is blocked pipe nipple
The effect of inwall erosion；Underground pipe nipple overall dimensions of blocking are identical with this section of flow string size, can directly be serially connected in production pipe
On post.
In Fig. 7：27- valves A；28- valve groups B；29- valve groups C；30- valves D；31- valve groups E；32- valves F；33- valves G；
34- valves H；35- valves I；36- valves J；Wherein the valve and valve group of numbering A~E are arranged on improvement christmas tree, valve F
It is arranged on two branch lines of ground injection pipeline with G, valve H~J is arranged on separating and reclaiming device.
In Fig. 8：37- intelligent sphere outside wall surfaces；38- flow string internal faces；39- mixed gas air-flow streamlines.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
As shown in Fig. 1~Fig. 7, a kind of acid gas well flow string inwall medium corrosion-resistant automatic painting apparatus, including it is anti-
Corrosive medium injected system, smear ball injected system and smear control and three parts of recovery and processing system, it is described these three
Part is both connected to improve on christmas tree 1, and the medium corrosion-resistant injected system includes medium corrosion-resistant storage tank 2, injection pump
3rd, annular space high-voltage power supply 4, flowmeter 5, pressure gauge 6, ground injection pipeline 7, underground medium corrosion-resistant injection pipe nipple 8, the smearing
Ball injected system includes that intelligent sphere 9, pitching cylinder 10, underground is blocked pipe nipple 11, described to smear control and recovery and processing system and include
Air-flow velocity and intelligent sphere motion control device 12, computer control unit 13, separating and reclaiming device 14, the medium corrosion-resistant note
Enter system and medium corrosion-resistant is injected downwardly into by the annular space between flow string 15 and sleeve pipe 16, medium corrosion-resistant is anti-by underground
Corrosive medium injection pipe nipple 8 enters in flow string 15, and pipe nipple 11 is blocked successively in underground medium corrosion-resistant injection pipe nipple 8 and underground
It is serially connected in 15 sections of flow string on downhole packer 17.The improvement christmas tree 1 compares conventional christmas tree, in former big four
A small four-way flange is concatenated in the middle of flange and small four-way flange, its left and right two ends valve group B28 and valve group C29 is respectively intended to make
It is pitching and the passage of recycling, big four flange left end valve group E31 connection medium corrosion-resistant injected systems, for production
Annular space injection medium corrosion-resistant between tubing string 15 and sleeve pipe 16, the function of christmas tree other parts keeps constant.The anti-corruption
Medium corrosion-resistant storage tank 2, injection pump 3 in erosion medium injected system, annular space high-voltage power supply 4, flowmeter 5, pressure gauge 6 pass through
Ground injection pipeline 7 is connected on improvement christmas tree 1 big four flange left end valve group E31, and the injection pipe nipple 8 is serially connected in underground
15 sections of the flow string of the top of packer 17, its be substantially increase wall thickness at annular space and be provided with check valve 21 flow string it is short
Section, 21, set check valve allows annular space of the medium corrosion-resistant between flow string 15 and sleeve pipe 16 to flow into flow string 15
It is interior, reverse flow is not allowed, set check valve 21 can be one or more.The pitching cylinder for smearing ball injected system
10 are provided with closure, and intelligent sphere 9 can be sealed effectively after putting into, it is ensured that intelligent sphere 9 is under in improving christmas tree 1 smoothly
Fall, the underground for smearing ball injected system pipe nipple 11 of blocking is serially connected in the production of the top of underground medium corrosion-resistant injection pipe nipple 8
15 sections of tubing string, its be substantially increase inner flow passage wall thickness with stop ball continue fall flow string pipe nipple, do not influence gas and
Medium corrosion-resistant passes through.The air-flow velocity and intelligent sphere motion control device 12 of the smearing control and recovery and processing system,
Separating and reclaiming device 14 is sequentially connected in series and is improving the valve group C29 right-hand members of christmas tree 1, the air-flow velocity and intelligent sphere motion control
Device 12 and computer control unit 13 are using wirelessly or non-wirelessly communication mode.The air-flow for smearing control and recovery and processing system
Flow control valve is provided with flow velocity and intelligent sphere motion control device 12, the flow velocity of fluid can be controlled, so as to reach control
The direction of motion and speed of intelligent sphere 9, the device are also built-in with signal receiver and signal projector, can be with computer control
The real-time Transmission of unit 13, signal receiver and signal projector installation and connection method and normal signal transceiver connection method one
Cause, wireline interface and wireless receiving and dispatching port are set.The intelligent sphere 9 is internally provided with sender unit, air-flow velocity and
The radio signal power that intelligent sphere motion control device 12 can be sent by intelligent sphere 9 is joined with carrying out position, speed etc.
Several monitorings and transmission.
Application method of the present utility model is as follows：
(1) device is installed and debugged firstly the need of before entering flow string under gas well：Under ground portion is mainly
Pipe nipple 11 is blocked into underground and medium corrosion-resistant injection pipe nipple 8 in underground is serially connected in the top of downhole packer 17 of flow string 15
Section.Above ground portion is mainly is modified to traditional christmas tree, and one has been concatenated in the middle of former big four flange and small four-way flange
Individual small four-way flange, its left and right two ends set valve group B28 and valve group C29 and are respectively intended to as pitching and the passage for recycling,
The function of christmas tree other parts is held essentially constant, and does not interfere with normal gas production operation.Medium corrosion-resistant injected system, painting
Smear ball injected system and smearing control and three parts of recovery and processing system are pacified according to the method that the utility model is provided
Dress and debugging, to ensure that the normal of each component function is used.
(2), it is necessary to what is carried out is the operation of medium corrosion-resistant injection after the completion of installation and debugging：As shown in Figure 1 and Figure 7, close
Valve closing door A27, opens valve group C29 and valve J36, and confirms that valve D30 is remained on, and confirms valve H34 and valve I35
It is closed, to ensure the normal development of gas production operation.Valve group E31 and valve F32 is opened, injection pump 3 is opened, will be anti-
The medium corrosion-resistant of a certain amount of volume pumps into the annular space between flow string 15 and sleeve pipe 16 in corrosive medium storage tank 2, passes through
Flowmeter 5 can accurately control to inject the volume of medium corrosion-resistant, reach should close after the injected slurry volume of requirement injection pump 3 with
And valve F22.Valve G33 is opened, by the annular space between the gas injection flow string 15 and sleeve pipe 16 in annular space high-voltage power supply 4,
Pressure gauge 6 can show the pressure size in annular space.Annular pressure and production around underground medium corrosion-resistant injection pipe nipple 8
After the internal pressure of tubing string 15 reaches certain pressure difference, check valve 21 will be pressed off, make the medium corrosion-resistant being previously injected in annular space by single
Enter in flow string 15 to valve 21, valve F33 apertures now should be suitably adjusted according to the pressure size shown by pressure gauge 6,
Being smeared when operation is completed when last time can close valve G33.
(3) then carry out smear ball injection associative operation：Confirm that valve group B28 is closed, open pitching cylinder 10
Closure, intelligent sphere 9 is put into pitching cylinder as shown in Figure 4 and 10 and has closed closure.Valve D and valve group B is opened, and is passed through
Air-flow velocity and the regulation air-flow velocity of intelligent sphere motion control device 12, it is ensured that intelligent sphere 9 can smoothly under fall underground and block
At pipe nipple 11.Confirming to close valve group B28 after intelligent sphere 9 is come into flow string.
(4) then carry out medium corrosion-resistant and smear operation：It is provided with air-flow velocity and intelligent sphere motion control device 12
Flow control valve, can control the flow velocity of air-flow, so as to reach the direction of motion and speed of control intelligent sphere 9, when intelligent sphere 9 falls
Enter underground block pipe nipple 11 when, as shown in figure 8, air-flow velocity and intelligent sphere motion control device 12 will automatically raise air-flow stream
Speed, it is ensured that intelligent sphere 9 with certain relative velocity with upward fluid, when intelligent sphere 9 moves to subaerial position,
Air-flow velocity and intelligent sphere motion control device 12 will automatically lower air-flow velocity, intelligent sphere 9 is moved downward again, intelligent sphere
9 reciprocating motion number of times is determined by the smear layer thickness requirement of flow string inwall medium corrosion-resistant.Air-flow velocity and intelligence
Using communication mode wirelessly or non-wirelessly between ball motion control device 12 and computer control unit 13, computer control unit 13 is pacified
Equipped with correlation computations and control program, can be to air-flow velocity and the related data and letter of the offer of intelligent sphere motion control device 12
Number be analyzed and calculate, such as flow velocity, flow etc..Signal projector of the inside of intelligent sphere 9 equipped with strength of stability, air-flow velocity
And intelligent sphere motion control device 12 can send the calculating of the power and combination computer control unit 13 of signal according to intelligent sphere 9
Program draws the particular location of intelligent sphere 9, so as to adjust air-flow velocity in good time, changes the stress and motion state of ball.
(5) what medium corrosion-resistant was carried out after the completion of smearing and operating is the recovery of intelligent sphere and the recovery of medium corrosion-resistant：
Medium corrosion-resistant is separated with extraction gas and carried out in separating and reclaiming device 14 always in fact, produces gas and medium corrosion-resistant
Fluid-mixing enter separating and reclaiming device 14 through valve group C29 and air-flow velocity and intelligent sphere motion control device 12, utilize
The gravitational differentiation of different fluid is realized separating, and the separated retracting device outlet 1#141 of extraction gas enters gas production main line, resists
Corrosive medium then gradually gathers the bottom of separating and reclaiming device 14.After being returned in the last time of intelligent sphere 9, air-flow velocity and intelligence
Ball motion control device 12 will no longer lower flow velocity, to ensure that intelligent sphere 9 passes through valve group C29 and air-flow velocity and intelligent sphere
Motion control device 12 falls into the bottom of separating and reclaiming device 14.Intelligent sphere 9 should open valve after falling into separating and reclaiming device 14
A27, closes valve group C29 and valve J36.After the emptying upper gas pressure of separating and reclaiming device 14, valve I35 is opened, by dividing
The medium corrosion-resistant of bottom is discharged to be reclaimed and be processed from retracting device outlet 2#142.After pass after medium corrosion-resistant emptying
Valve closing door I35, opens valve H34, and exporting 3#143 by separating and reclaiming device takes out intelligent sphere 9 and carry out maintaining, receives ball
After the completion of should close valve H34.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific terminology) have with the utility model art in those of ordinary skill general understanding identical meaning.Also
It should be understood that those terms defined in such as general dictionary should be understood that with the context of prior art in
The consistent meaning of meaning, and unless defined as here, will not be explained with idealization or excessively formal implication.
One of ordinary skill in the art will appreciate that：The part in device in embodiment can be according to embodiment description point
It is distributed in the device of embodiment, it is also possible to carry out respective change and be disposed other than in one or more devices of the present embodiment.On
Stating the part of embodiment can merge into a part, it is also possible to be further split into multiple subassemblies.
It should be noted last that：Preferred embodiment of the present utility model is the foregoing is only, is not used to limit
The utility model, although being described in detail to the utility model with reference to above-described embodiment, one of ordinary skill in the art
It should be appreciated that：The utility model can still be modified or equivalent, without deviating from it is of the present utility model spirit and
Any modification or partial replacement of scope, it all should cover in the middle of right of the present utility model.
Claims (9)
1. a kind of acid gas well flow string inwall medium corrosion-resistant automatic painting apparatus, it is characterised in that including improving gas production
Tree, medium corrosion-resistant injected system, smearing ball injected system, smearing control and recovery and processing system；It is described improvement christmas tree be
The two small four-way flanges for connecting from top to bottom and a big four flange；
The medium corrosion-resistant injected system includes medium corrosion-resistant storage tank, injection pump, annular space high-voltage power supply, flowmeter, pressure
Table, ground injection pipeline, underground medium corrosion-resistant injection pipe nipple；The media storage tank passes through injection pump with annular space high-voltage power supply simultaneously
Ground injection pipeline is linked to, then by the big four flange of flowmeter Innovation of Connection christmas tree bottom, flowmeter and christmas tree
Between be provided with pressure gauge, medium corrosion-resistant injection pipe nipple in underground is arranged on flow string bottom；
The smearing ball injected system includes that intelligent sphere, pitching cylinder, underground are blocked pipe nipple；The pitching cylinder is connected to improvement gas production
On small four-way flange in the middle of setting, pipe nipple is blocked installed in flow string bottom in underground, on underground injection pipe nipple；
It is described smear control and recovery and processing system include air-flow velocity and intelligent sphere motion control device, computer control unit,
Separating and reclaiming device；Air-flow velocity and intelligent sphere motion control device are arranged on separating and reclaiming device and improve in the middle of christmas tree
In the pipeline of small four-way flange connection, computer control unit is connected and controls air-flow velocity and intelligent sphere motion control device；
The medium corrosion-resistant injected system is injected downwardly into medium corrosion-resistant, anti-corruption by the annular space between flow string and sleeve pipe
Erosion medium injects pipe nipple and enters in flow string by underground medium corrosion-resistant.
2. a kind of acid gas well flow string inwall medium corrosion-resistant automatic painting apparatus according to claim 1, it is special
Levy and be, the improvement christmas tree compares conventional christmas tree, and one has been concatenated in the middle of former big four flange and small four-way flange
Small four-way flange, middle small four-way flange or so are respectively arranged at two ends with valve group B and valve group C, be respectively intended to connection pitching cylinder and
Separating and reclaiming device；Big four left end is provided with valve group E, for connecting medium corrosion-resistant injected system.
3. a kind of acid gas well flow string inwall medium corrosion-resistant automatic painting apparatus according to claim 1, it is special
Levy and be, the injection pipe nipple is serially connected in the production pipe shell of column above downhole packer, injection pipe nipple middle part is provided with and adds laterally
Thick extension diameter section, the check valve of ecto-entad circulation is provided with extension diameter section, and check valve quantity is at least one.
4. a kind of acid gas well flow string inwall medium corrosion-resistant automatic painting apparatus according to claim 1, it is special
Levy and be, the pitching cylinder for smearing ball injected system is provided with closure, and closure is shut after intelligent sphere input.
5. a kind of acid gas well flow string inwall medium corrosion-resistant automatic painting apparatus according to claim 1, it is special
Levy and be, the underground for smearing ball injected system is blocked the production that pipe nipple is serially connected in above underground medium corrosion-resistant injection pipe nipple
Tubing string section, underground block pipe nipple middle part be provided with to inner side thicken undergauge section, intelligent sphere with diameter greater than undergauge section internal diameter.
6. a kind of acid gas well flow string inwall medium corrosion-resistant automatic painting apparatus according to claim 1, it is special
Levy and be, the air-flow velocity and intelligent sphere motion control device and computer control unit are using wirelessly or non-wirelessly communication mode.
7. a kind of acid gas well flow string inwall medium corrosion-resistant automatic painting apparatus according to claim 1, it is special
Levy and be, flow control is provided with the air-flow velocity and intelligent sphere motion control device for smearing control and recovery and processing system
Valve, air-flow velocity and intelligent sphere motion control device are provided with signal receiver and signal projector.
8. a kind of acid gas well flow string inwall medium corrosion-resistant automatic painting apparatus according to claim 1, it is special
Levy and be, separating and reclaiming device side upper end is provided with separating and reclaiming device outlet 1#, under the separating and reclaiming device side
End is provided with separating and reclaiming device outlet 2#, and the separating and reclaiming device bottom is provided with separating and reclaiming device outlet 3#.
9. a kind of acid gas well flow string inwall medium corrosion-resistant automatic painting apparatus according to claim 1, it is special
Levy and be, the intelligent sphere is internally provided with sender unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621082873.2U CN206309289U (en) | 2016-09-27 | 2016-09-27 | Acid gas well flow string inwall medium corrosion-resistant automatic painting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621082873.2U CN206309289U (en) | 2016-09-27 | 2016-09-27 | Acid gas well flow string inwall medium corrosion-resistant automatic painting apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285503A (en) * | 2016-09-27 | 2017-01-04 | 西南石油大学 | Acid gas well flow string inwall medium corrosion-resistant automatic painting apparatus and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285503A (en) * | 2016-09-27 | 2017-01-04 | 西南石油大学 | Acid gas well flow string inwall medium corrosion-resistant automatic painting apparatus and method |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170707 Effective date of abandoning: 20180615 |