CN107654223B - Fire flooding oil extraction air injection system - Google Patents
Fire flooding oil extraction air injection system Download PDFInfo
- Publication number
- CN107654223B CN107654223B CN201711077623.9A CN201711077623A CN107654223B CN 107654223 B CN107654223 B CN 107654223B CN 201711077623 A CN201711077623 A CN 201711077623A CN 107654223 B CN107654223 B CN 107654223B
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- air compressor
- pipeline
- valve
- surge tank
- air
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- 238000002347 injection Methods 0.000 title claims abstract description 85
- 239000007924 injection Substances 0.000 title claims abstract description 85
- 238000000605 extraction Methods 0.000 title abstract 2
- 239000003129 oil well Substances 0.000 claims abstract description 15
- 239000002274 desiccant Substances 0.000 claims description 68
- 238000011144 upstream manufacturing Methods 0.000 claims description 12
- 239000003230 hygroscopic agent Substances 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000003139 buffering effect Effects 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims 2
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 238000010276 construction Methods 0.000 abstract description 15
- 238000011084 recovery Methods 0.000 abstract description 2
- 235000019198 oils Nutrition 0.000 description 61
- 101100298225 Caenorhabditis elegans pot-2 gene Proteins 0.000 description 17
- 239000007788 liquid Substances 0.000 description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 235000019476 oil-water mixture Nutrition 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000002351 wastewater Substances 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
- E21B43/243—Combustion in situ
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/166—Injecting a gaseous medium; Injecting a gaseous medium and a liquid medium
- E21B43/168—Injecting a gaseous medium
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The application provides a fireflood oil recovery air injection system includes: the air conditioner comprises a first air compressor, a first buffer tank and a second air compressor which are connected in sequence, wherein a third valve is arranged between the first buffer tank and the first air compressor, and a fourth valve is arranged between the first buffer tank and the second air compressor; the air conditioner comprises a third air compressor, a second buffer tank and a fourth air compressor which are connected in sequence, wherein a seventh valve is arranged between the second buffer tank and the third air compressor, and an eighth valve is arranged between the second buffer tank and the fourth air compressor; a first bridging pipeline is connected between the outlet ends of the first air compressor and the third air compressor, and a ninth valve is arranged on the first bridging pipeline; a second bridge line is connected between the inlet ends of the second and fourth air compressors, a tenth valve is arranged on the second bridge line, and the outlet ends of the second and fourth air compressors are connected with the injection line. The fire flooding oil extraction air injection system can realize centralized gas injection in an oil well, and can guarantee that gas injection construction is continuously carried out.
Description
Technical field
This application involves fire flooding recovery equipment technical field more particularly to a kind of fire flood air injected systems.
Background technique
The description of this part only provides and discloses relevant background information to the application, without constituting the prior art.
With the continuous expansion of fire flood technical application scale, the injection rate of air also constantly expands therewith, original
Air injection mode is not suitable for existing scale.Scattered construction point personnel are more, are unfavorable for field management, separate unit small size air air pressure
The house refuse inconvenience processing that contracting chance generates various oily wastewaters and Field Force generates, can bring environment dirty to construction site
Dye does not meet current generation requirement.Meanwhile the operation of separate unit mini air compressor is unfavorable for the special maintenance of field device, having must
It takes and concentrates gas injection measure, with the construction point that the scene of reducing is scattered, reduce the difficulty of field management.
In addition, being easy to cause the interruption of gas injection construction using the gas injection mode of separate unit mini air compressor.Specifically,
When separate unit mini air compressor breaks down, gas injection construction will accordingly stop, and influence the lasting progress of gas injection.
It should be noted that the above description of the technical background be intended merely to it is convenient to the technical solution of the application carry out it is clear,
Complete explanation, and facilitate the understanding of those skilled in the art and illustrate.Cannot merely because these schemes the application's
Background technology part is expounded and thinks that above-mentioned technical proposal is known to those skilled in the art.
Summary of the invention
Based on prior art defect above-mentioned, this application provides a kind of fire flood air injected systems, can be real
Gas injection is now concentrated into oil well, and can guarantee the progress that gas injection construction can continue.
To achieve the goals above, this application provides the following technical solutions.
A kind of fire flood air injected system, comprising:
First air compressor；
First surge tank, first surge tank is connected by pipeline with first air compressor, described in connection
Third valve is provided on the pipeline of first surge tank and first air compressor；
Second air compressor, second air compressor are connected by pipeline with first surge tank, connection
The 4th valve is provided on the pipeline of first surge tank and second air compressor；
Third air compressor；
Second surge tank, second surge tank is connected by pipeline with the third air compressor, described in connection
The 7th valve is provided on the pipeline of second surge tank and the third air compressor；
4th air compressor, the 4th air compressor are connected by pipeline with second surge tank, connection
The 8th valve is provided on the pipeline of second surge tank and the 4th air compressor；
First bridge line, first bridge line one end connects the outlet end of first air compressor, another
End connects the outlet end of the third air compressor, and the 9th valve is arranged in first bridge line；
Second bridge line, second bridge line one end connects the input end of second air compressor, another
End connects the input end of the 4th air compressor, and the tenth valve is arranged in second bridge line；
Inject pipeline, one end of the injection pipeline and second air compressor and the 4th air compressor
Outlet end is connected, and the other end can be connected with well mouth of oil well.
Preferably, the fire flood air injected system further include: the first oil removing pot and the first desiccant canister, described first
The hygroscopic agent to absorb moisture content in air is equipped in desiccant canister, first oil removing pot is connected to first sky by pipeline
Between air compressor and first surge tank, first desiccant canister is connected to first oil removing pot and described by pipeline
Between first surge tank, connects and is provided with the first valve on the pipeline of first air compressor and first oil removing pot,
It connects and is provided with the second valve on the pipeline of first oil removing pot and first desiccant canister.
Preferably, the fire flood air injected system further include: the second oil removing pot and the second desiccant canister, described second
The hygroscopic agent to absorb moisture content in air is equipped in desiccant canister, second oil removing pot is connected to the third sky by pipeline
Between air compressor and second surge tank, second desiccant canister is connected to second oil removing pot and described by pipeline
Between second surge tank, connects and is provided with the 5th valve on the pipeline of the third air compressor and second oil removing pot,
It connects and is provided with the 6th valve on the pipeline of second oil removing pot and second desiccant canister.
Preferably, the quantity of the injection pipeline is multiple, and multiple injection pipelines are arranged in parallel；Each injection
Bypass flow meter and branch check valve and two the 11st valves are provided on pipeline, the branch check valve is flowed along gas
Direction is located at the downstream of the bypass flow meter, one of them described 11st valve is located at the branch along gas flow direction
The upstream of flowmeter, another described 11st valve are located at the downstream of the branch check valve along gas flow direction.
Preferably, the injection pipeline of multiple parallel connections passes through main line pipeline and second air compressor and described the
The outlet end of four air compressors is connected, and main line flowmeter and main line check valve, the main line are arranged on the main line pipeline
Check valve is located at the upstream of the main line flowmeter along gas flow direction.
Preferably, third surge tank is provided on the main line pipeline, the third surge tank is located at the main line flow
Between meter and the main line check valve.
A kind of fire flood air injected system, comprising:
First air compressor；
First oil removing pot, first oil removing pot is connected by pipeline with first air compressor, described in connection
The first valve is provided on the pipeline of first air compressor and first oil removing pot；
First desiccant canister, the interior hygroscopic agent being equipped with to absorb moisture content in air of first desiccant canister, described first removes
Wet tank is connected by pipeline with first oil removing pot, on the pipeline for connecting first oil removing pot and first desiccant canister
It is provided with the second valve；
First surge tank, first surge tank are connected by pipeline with first desiccant canister, connection described first
Third valve is provided on the pipeline of surge tank and first oil removing pot；
Second air compressor, second air compressor are connected by pipeline with first surge tank, connection
The 4th valve is provided on the pipeline of first surge tank and second air compressor；
Third air compressor；
Second oil removing pot, second oil removing pot is connected by pipeline with the third air compressor, described in connection
The 5th valve is provided on the pipeline of third air compressor and second oil removing pot；
Second desiccant canister, the interior hygroscopic agent being equipped with to absorb moisture content in air of second desiccant canister, described second removes
Wet tank is connected by pipeline with second oil removing pot, on the pipeline for connecting second oil removing pot and second desiccant canister
It is provided with the 6th valve；
Second surge tank, second surge tank are connected by pipeline with second desiccant canister, connection described second
The 7th valve is provided on the pipeline of surge tank and second oil removing pot；
4th air compressor, the 4th air compressor are connected by pipeline with second surge tank, connection
The 8th valve is provided on the pipeline of second surge tank and the 4th air compressor；
First bridge line, first bridge line one end connects the outlet end of first air compressor, another
End connects the outlet end of the third air compressor, and the 9th valve is arranged in first bridge line；
Second bridge line, second bridge line one end connects the input end of second air compressor, another
End connects the input end of the 4th air compressor, and the tenth valve is arranged in second bridge line；
Inject pipeline, one end of the injection pipeline and second air compressor and the 4th air compressor
Outlet end is connected, and the other end can be connected with well mouth of oil well.
Preferably, the quantity of the injection pipeline is multiple, and multiple injection pipelines are arranged in parallel；Each injection
Bypass flow meter and branch check valve and two the 11st valves are provided on pipeline, the branch check valve is flowed along gas
Direction is located at the downstream of the bypass flow meter, one of them described 11st valve is located at the branch along gas flow direction
The upstream of flowmeter, another described 11st valve are located at the downstream of the branch check valve along gas flow direction.
Preferably, the injection pipeline of multiple parallel connections passes through main line pipeline and second air compressor and described the
The outlet end of four air compressors is connected, and main line flowmeter and main line check valve, the main line are arranged on the main line pipeline
Check valve is located at the upstream of the main line flowmeter along gas flow direction.
Preferably, third surge tank is provided on the main line pipeline, the third surge tank is located at the main line flow
Between meter and the main line check valve.
Preferably, the fire flood air injected system further include: blow-down tank, the blow-down tank by pipeline respectively with
First air compressor, the second air compressor, the first oil removing pot, the second oil removing pot, the first desiccant canister, the second dehumidifying
Tank, the first surge tank, the second surge tank are connected with third surge tank.
Preferably, the fire flood air injected system further include: blowdown drum, the blowdown drum by pipeline respectively with
First air compressor, the second air compressor, the first oil removing pot, the second oil removing pot, the first desiccant canister, the second dehumidifying
Tank, the first surge tank, the second surge tank are connected with third surge tank.
By above technical solution, the beneficial effects of the present application are as follows: the fire flood air of the application embodiment
Injected system, by the way that two air injection branches are arranged, one of air injection branch includes sequentially connected by pipeline
First air compressor and the first surge tank, another air injection branch include passing through the sequentially connected second air pressure of pipeline
Contracting machine and the second surge tank, and the first air compressor outlet end and third air compressor outlet end are separately connected by setting
The first bridge line, and connection the second air compressor outlet end and the 4th air compressor outlet end the second bridge pipe
Line, so as to form the first air compressor and the first surge tank, the first air compressor and the second surge tank, the second air
Compressor and the first surge tank and the second air compressor and the second surge tank amount to four air and inject access, thus first
Air compressor can be worked normally with any one in the second air compressor, third air compressor and the 4th air compressor
In any one can work normally, can allow there is at least one to operate normally in above-mentioned four air injection access, in turn
Air injection work is completed into oil well by injecting pipeline, ensure that the progress that gas injection construction can continue to the maximum extent.
As a result, the application embodiment fire flood air injected system setting multistation injection gas air compressor with
And the equipment such as surge tank, and be arranged in parallel above equipment by pipeline, gas injection is concentrated into oil well so as to realize, is reduced
The scattered construction point in scene, reduces the difficulty of field management.
Other application field will become obvious according to the description provided herein.The description of the content of present invention and specifically show
Example is only intended to the purpose illustrated, it is not intended that limits the scope of the invention.
Detailed description of the invention
Attached drawing described here is only used for task of explanation, and is not intended to limit model disclosed in the present application in any way
It encloses.In addition, shape and proportional sizes of each component in figure etc. are only schematical, it is used to help the understanding to the application, and
It is not the specific shape and proportional sizes for limiting each component of the application.Those skilled in the art, can under teachings of the present application
Implement the application to select various possible shapes and proportional sizes as the case may be.In the accompanying drawings:
Fig. 1 is the fire flood air injected system structural schematic diagram of the application embodiment.
Specific embodiment
It should be noted that it can be directly another when a components referred to as " are set to " another components
On a components or there may also be components placed in the middle.When a components are considered as " connection " another components,
It can be directly to another components or may be simultaneously present components placed in the middle.Term as used herein " is hung down
Directly ", "horizontal", "left", "right" and similar statement are for illustrative purposes based on Figure of description, are not offered as being only
One embodiment.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.Term as used herein "and/or" includes one or more
Any and all combinations of relevant listed item.
As shown in Figure 1, a kind of fire flood air injected system of the application embodiment, may include: the first sky
Air compressor 1；First surge tank 4, first surge tank 4 are connected by pipeline with first air compressor 1, are connected
Third valve V3 is provided on first surge tank 4 and the pipeline of first air compressor 1；Second air compressor 5,
Second air compressor 5 is connected by pipeline with first surge tank 4, connection first surge tank 4 with it is described
The 4th valve V4 is provided on the pipeline of second air compressor 5；Third air compressor 6；Second surge tank 9, described second
Surge tank 9 is connected by pipeline with the third air compressor 6, and second surge tank 9 and the third air are connected
The 7th valve V7 is provided on the pipeline of compressor 6；4th air compressor 10, the 4th air compressor 10 pass through pipeline
It is connected with second surge tank 9, connects and be arranged on second surge tank 9 and the pipeline of the 4th air compressor 10
There is the 8th valve V8；First bridge line 11, described first bridge line, 11 one end connect going out for first air compressor 1
Mouth end, the other end connect the outlet end of the third air compressor 6, the 9th valve are arranged in first bridge line 11
V9；Second bridge line 12, described second bridge line, 12 one end connects the input end of second air compressor 5, another
End connects the input end of the 4th air compressor 10, and the tenth valve V10 is arranged in second bridge line 12；Injection pipe
Line 13, one end of the injection pipeline 13 and the outlet end of second air compressor 5 and the 4th air compressor 10
It is connected, the other end can be connected with well mouth of oil well.
The fire flood air injected system of the application embodiment, by the way that two air injection branches are arranged, wherein one
A air injection branch includes by sequentially connected first air compressor 1 of pipeline and the first surge tank 4, another air note
Entering branch includes being separately connected the by sequentially connected second air compressor 5 of pipeline and the second surge tank 9, and by setting
First bridge line 11 of 6 outlet end of one air compressor, 1 outlet end and third air compressor, and the second air pressure of connection
Second bridge line 12 of 5 outlet end of contracting machine and 10 outlet end of the 4th air compressor, so as to form the compression of the first air
Machine 1 and the first surge tank 4, the first air compressor 1 and the second surge tank 9, the second air compressor 5 and the first surge tank 4 with
And second air compressor 5 and the second surge tank 9 amount to four air and inject accesses, thus the first air compressor 1 and second
Any one in air compressor 5 can work normally, any one energy in third air compressor 6 and the 4th air compressor 10
It works normally, can allow there is at least one to operate normally in above-mentioned four air injection access, and then pass through injection pipeline
13, which complete air into oil well, injects work, ensure that the progress that gas injection construction can continue to the maximum extent.
As a result, the application embodiment fire flood air injected system setting multistation injection gas air compressor with
And the equipment such as surge tank, and be arranged in parallel above equipment by pipeline, gas injection is concentrated into oil well so as to realize, is reduced
The scattered construction point in scene, reduces the difficulty of field management.
In the present embodiment, it is subordinate to the first air compressor 1 on same air injection branch and the compression of the second air
The rated operating pressure of machine 5 is different.Likewise, being subordinate to the third air compressor 6 and the 4th on another air injection branch
The rated operating pressure of air compressor 10 is also different.Specifically, the volume of the first air compressor 1 and third air compressor 6
Determine that operating pressure is identical, third air compressor 6 is identical with the nominal operation of the 4th air compressor 10, and the first air compresses
The rated operating pressure of machine 1 and third air compressor 6 is specified less than the second air compressor 5 and the 4th air compressor 10
Operating pressure.In short, the first air compressor 1 and third air compressor 6 are low pressure air compressor, and the second air pressure
Contracting machine 5 and the 4th air compressor 10 are High-Pressure Compressor.Pass through the rated operating pressure to above-mentioned air compressor
Design is chosen, the air in same air injection branch can be pressurized step by step.
In the present embodiment, the first surge tank 4 and the second surge tank 9 can correspond in air injection branch to buffering
Pressure oscillation keeps the work of air injection branch more stable.
In one embodiment, the fire flood air injected system further include: the first oil removing pot 2 and the first dehumidifying
Tank 3, be equipped in first desiccant canister 3 to absorb moisture content in air hygroscopic agent (such as can be silica gel, aluminium oxide, point
Son sieve etc.), first oil removing pot 2 by pipeline be connected to first air compressor 1 and first surge tank 4 it
Between, first desiccant canister 3 is connected between first oil removing pot 2 and first surge tank 4 by pipeline, described in connection
It is provided with the first valve V1 on first air compressor 1 and the pipeline of first oil removing pot 2, connects first oil removing pot 2
The second valve V2 is provided with on the pipeline of first desiccant canister 3.
Likewise, in one embodiment, the fire flood air injected system further include: 7 He of the second oil removing pot
Second desiccant canister 8, the interior hygroscopic agent being equipped with to absorb moisture content in air of second desiccant canister 8, second oil removing pot 7 are logical
It crosses pipeline to be connected between the third air compressor 6 and second surge tank 9, second desiccant canister 8 passes through pipeline
It is connected between second oil removing pot 7 and second surge tank 9, connects the third air compressor 6 and described second
The 5th valve V5 is provided on the pipeline of oil removing pot 7, on the pipeline for connecting second oil removing pot 7 and second desiccant canister 8
It is provided with the 6th valve V6.
By the first oil removing pot 2 of setting, the first desiccant canister 3, the second oil removing pot 7 and the second desiccant canister 8, carrying can be removed
Oil and moisture aerial, in gaseous state shape, so as to which air is dried.
In one embodiment, the quantity of the injection pipeline 13 is multiple, and multiple 13 parallel connections of injection pipeline are set
It sets；It is provided with bypass flow meter 14 and branch check valve 15 and two the 11st valve V11 on each injection pipeline 13,
The branch check valve 15 is located at the downstream of the bypass flow meter 14, one of them described 11st valve along gas flow direction
Door V11 is located at the upstream of the bypass flow meter 14 along gas flow direction, another described 11st valve V11 is along gas stream
Dynamic direction is located at the downstream of the branch check valve 15.
By the way that multiple injection pipelines 13 being arranged in parallel are arranged, then multiple injection pipelines 13 can be with mutual backup without mutual
It mutually influences, thereby may be ensured that being normally carried out for gas injection operation.Also, the injection pipeline 13 of multiple parallel connections is set, it can be primary
Property realize that the gas injection to more mouthfuls of oil wells operates, substantially increase the efficiency of gas injection construction.
In one embodiment, the injection pipeline 13 of multiple parallel connections passes through main line pipeline 16 and second air
Compressor 5 is connected with the outlet end of the 4th air compressor 10, and main line flowmeter 17 is arranged on the main line pipeline 16
With main line check valve 18, the main line check valve 18 is located at the upstream of the main line flowmeter 17 along gas flow direction.
In one embodiment, third surge tank 19, the third surge tank 19 are provided on the main line pipeline 16
Between the main line flowmeter 17 and the main line check valve 18.
By the way that branch check valve 15 and main line check valve is arranged on each injection pipeline 13 and main line pipeline 16 respectively
18, it can drive in the wrong direction to avoid air from oil well, protect each equipment in the application fire flood air injected system to greatest extent
Safety.
As shown in Figure 1, a kind of fire flood air injected system that the application another embodiment provides, can wrap
It includes: the first air compressor 1；First oil removing pot 2, first oil removing pot 2 pass through pipeline and 1 phase of the first air compressor
Connection connects and is provided with the first valve V1 on first air compressor 1 and the pipeline of first oil removing pot 2；First removes
Wet tank 3, the interior hygroscopic agent being equipped with to absorb moisture content in air of first desiccant canister 3, first desiccant canister 3 pass through pipeline
It is connected with first oil removing pot 2, connects and be provided with the on first oil removing pot 2 and the pipeline of first desiccant canister 3
Two valve V2；First surge tank 4, first surge tank 4 is connected by pipeline with first desiccant canister 3, described in connection
Third valve V3 is provided on first surge tank 4 and the pipeline of first oil removing pot 2；Second air compressor 5, described second
Air compressor 5 is connected by pipeline with first surge tank 4, and first surge tank 4 and second air are connected
The 4th valve V4 is provided on the pipeline of compressor 5；Third air compressor 6；Second oil removing pot 7, second oil removing pot 7 are logical
It crosses pipeline to be connected with the third air compressor 6, connects the third air compressor 6 and second oil removing pot 7
The 5th valve V5 is provided on pipeline；Second desiccant canister 8, second desiccant canister 8 is interior to be equipped with to absorb moisture content in air
Hygroscopic agent, second desiccant canister 8 are connected by pipeline with second oil removing pot 7, and second oil removing pot 7 and institute are connected
It states and is provided with the 6th valve V6 on the pipeline of the second desiccant canister 8；Second surge tank 9, second surge tank 9 pass through pipeline and institute
It states the second desiccant canister 8 to be connected, connects and be provided with the 7th valve on second surge tank 9 and the pipeline of second oil removing pot 7
Door V7；4th air compressor 10, the 4th air compressor 10 are connected by pipeline with second surge tank 9, even
It connects and is provided with the 8th valve V8 on second surge tank 9 and the pipeline of the 4th air compressor 10；First bridge line
11, described first bridge line, 11 one end connects the outlet end of first air compressor 1, and it is empty that the other end connects the third
The 9th valve V9 is arranged in first bridge line 11 for the outlet end of air compressor 6；Second bridge line 12, described second
12 one end of bridge line connects the input end of second air compressor 5, and the other end connects the 4th air compressor 10
Input end, the tenth valve V10 is set in second bridge line 12；Inject pipeline 13, one end of the injection pipeline 13
It is connected with the outlet end of second air compressor 5 and the 4th air compressor 10, other end energy and well mouth of oil well
It is connected.
Compared to the fire flood air injected system of a upper embodiment, the fire flood air of present embodiment injects
System is additionally arranged the first oil removing pot 2, the first desiccant canister 3, the second oil removing pot 7 and the second desiccant canister 8, makes finally to be injected into oil well
Air it is more dry, thus the better quality of gas injection, steam injection efficiency is more preferably.
In one embodiment, the quantity of the injection pipeline 13 is multiple, and multiple 13 parallel connections of injection pipeline are set
It sets；Bypass flow meter 14, branch check valve 15 and two the 11st valve V11 are provided on each injection pipeline 13,
The branch check valve 15 is located at the downstream of the bypass flow meter 14, one of them described 11st valve along gas flow direction
Door V11 is located at the upstream of the bypass flow meter 14 along gas flow direction, another described 11st valve V11 is along gas stream
Dynamic direction is located at the downstream of the branch check valve 15.
In one embodiment, the injection pipeline 13 of multiple parallel connections passes through main line pipeline 16 and second air
Compressor 5 is connected with the outlet end of the 4th air compressor 10, and main line flowmeter 17 is arranged on the main line pipeline 16
With main line check valve 18, the main line check valve 18 is located at the upstream of the main line flowmeter 17 along gas flow direction.
In one embodiment, third surge tank 19, the third surge tank 19 are provided on the main line pipeline 16
Between the main line flowmeter 17 and the main line check valve 18.
Above embodiment can be found in above description, and therefore not to repeat here by the application.
In one embodiment, the fire flood air injected system can also include: blow-down tank 20, the emptying
Tank 20 by pipeline respectively with first air compressor 1, the second air compressor 5, the first oil removing pot 2, the second oil removing pot
7, the first desiccant canister 3, the second desiccant canister 8, the first surge tank 4, the second surge tank 9 are connected with third surge tank 19.
Blow-down tank 20 can collect the first air compressor 1, the second air compressor 5, the first oil removing pot 2, the second oil removing
When tank 7, the first desiccant canister 3, the second desiccant canister 8, the first surge tank 4, the second surge tank 9 and third 19 pressure release of surge tank, air
The oil water mixture of middle carrying, while can also be to avoid larger noise is generated when gas pressure discharges, than avoiding noise pollution.
Meanwhile blow-down pipe can when the oil water mixture being collected into condenses and reaches certain liquid level opening, to realize liquid dirt
Centralized processing.
In one embodiment, the fire flood air injected system can also include: blowdown drum 21, the blowdown
Tank 21 by pipeline respectively with first air compressor 1, the second air compressor 5, the first oil removing pot 2, the second oil removing pot
7, the first desiccant canister 3, the second desiccant canister 8, the first surge tank 4, the second surge tank 9 are connected with third surge tank 19.
Blowdown drum 21 can collect the first air compressor 1, the second air compressor 5, the first oil removing pot 2, the second oil removing
The liquid that tank 7, the first desiccant canister 3, the second desiccant canister 8, the first surge tank 4, the second surge tank 9 and third surge tank 19 are discharged is dirty
Object, and the opening when the liquid dirt being collected into reaches certain liquid level, to realize the centralized processing of liquid dirt.20 He of blow-down tank
The discharge of blowdown drum 21 can control for self-timing, can also manually control, according to live needs.
It should be noted that above equipment included by the fire flood air injected system of the application embodiment
To use any appropriate existing construction, the application is not construed as limiting this.
The working principle of the fire flood air injected system of the application embodiment is described below.
As shown in Figure 1, first closing the outlet of corresponding blow-down tank 20 and blowdown drum 21 when work.Starting is one of empty
Gas injection branch executes air and injects operation.For example, opening the first valve V1, the second valve V2, third valve V3, the 4th is closed
Valve V4.And all valves (the 5th valve V5, the 6th valve V6, the 7th valve V7 and on another air injection branch
Eight valve V8) it is turned off, while in the first bridge line 11 and the second bridge line 12 of two air injection branches of connection
9th valve V9 and the tenth valve V10 are also switched off.Then, start the first air compressor 1, third air compressor 6 and the 4th
Air compressor 10 is closed, and when the gas pressure in the first surge tank 4 reaches the starting pressure of the second air compressor 5, is opened
Dynamic second air compressor 5, while the 11st valve V11 for leading to well head is opened.Branch check valve 15 and main line check valve 18
When can be to prevent from shutting down, the air blow back in well head pipeline be into the second air compressor 5, to guarantee the safety of this system,
To realize that air injects construction operation.
It can not normal work such as any one equipment damage in the current air injection branch for executing air injection operation
When making, it can be assisted completing by another air injection branch empty by opening the 9th valve V9 and/or the tenth valve V10
Gas injects operation, thereby may be ensured that the progress that gas injection construction can continue, gains time to site examining and repairing work, improve sky
The reliability of gas injected system.
It should be noted that term " first ", " second " etc. are used for description purposes only and distinguish in the description of the present application
Similar object between the two and is not present sequencing, can not be interpreted as indication or suggestion relative importance.In addition, In
In the description of the present application, unless otherwise indicated, the meaning of " plurality " is two or more.
It should be understood that above description is to illustrate rather than to be limited.By reading above-mentioned retouch
It states, many embodiments and many applications except provided example all will be aobvious and easy for a person skilled in the art
See.Therefore, the range of this introduction should not be determined referring to foregoing description, but should referring to preceding claims and this
The full scope of the equivalent that a little claims are possessed determines.Theme disclosed herein is omitted in preceding claims
Any aspect is not intended to abandon the body matter, also should not be considered as applicant the theme is not thought of as it is disclosed
Apply for a part of theme.
Claims (12)
1. a kind of fire flood air injected system characterized by comprising
First air compressor；
First surge tank, first surge tank are connected by pipeline with first air compressor, connection described first
Third valve is provided on the pipeline of surge tank and first air compressor；
Second air compressor, second air compressor is connected by pipeline with first surge tank, described in connection
The 4th valve is provided on the pipeline of first surge tank and second air compressor；
Third air compressor；
Second surge tank, second surge tank are connected by pipeline with the third air compressor, connection described second
The 7th valve is provided on the pipeline of surge tank and the third air compressor；
4th air compressor, the 4th air compressor is connected by pipeline with second surge tank, described in connection
The 8th valve is provided on the pipeline of second surge tank and the 4th air compressor；
First bridge line, first bridge line one end connect the outlet end of first air compressor, and the other end connects
The outlet end of the third air compressor is connect, the 9th valve is set in first bridge line；
Second bridge line, second bridge line one end connect the input end of second air compressor, and the other end connects
The input end of the 4th air compressor is connect, the tenth valve is set in second bridge line；
Inject pipeline, one end of the injection pipeline and the outlet of second air compressor and the 4th air compressor
End is connected, and the other end can be connected with well mouth of oil well.
2. fire flood air injected system as described in claim 1, which is characterized in that fire flood air injection system
System further include: the first oil removing pot and the first desiccant canister, the interior moisture absorption being equipped with to absorb moisture content in air of first desiccant canister
Agent, first oil removing pot are connected between first air compressor and first surge tank by pipeline, and described
One desiccant canister is connected between first oil removing pot and first surge tank by pipeline, connects the first air compression
It is provided with the first valve on the pipeline of machine and first oil removing pot, connects first oil removing pot and first desiccant canister
The second valve is provided on pipeline.
3. fire flood air injected system as described in claim 1, which is characterized in that fire flood air injection system
System further include: the second oil removing pot and the second desiccant canister, the interior moisture absorption being equipped with to absorb moisture content in air of second desiccant canister
Agent, second oil removing pot are connected between the third air compressor and second surge tank by pipeline, and described
Two desiccant canisters are connected between second oil removing pot and second surge tank by pipeline, connect the third air compression
It is provided with the 5th valve on the pipeline of machine and second oil removing pot, connects second oil removing pot and second desiccant canister
The 6th valve is provided on pipeline.
4. fire flood air injected system as described in claim 1, which is characterized in that the quantity of the injection pipeline is more
A, multiple injection pipelines are arranged in parallel；Bypass flow meter and branch check valve are provided on each injection pipeline
With two the 11st valves, the branch check valve is located at the downstream of the bypass flow meter along gas flow direction, wherein one
A 11st valve is located at the upstream of the bypass flow meter along gas flow direction, another described 11st valve edge
Gas flow direction is located at the downstream of the branch check valve.
5. fire flood air injected system as claimed in claim 4, which is characterized in that the injection pipeline of multiple parallel connections
It is connected by main line pipeline with the outlet end of second air compressor and the 4th air compressor, the main line pipe
Main line flowmeter is set on line and main line check valve, the main line check valve are located at the main line flowmeter along gas flow direction
Upstream.
6. fire flood air injected system as claimed in claim 5, which is characterized in that be provided on the main line pipeline
Three surge tanks, the third surge tank is between the main line flowmeter and the main line check valve.
7. a kind of fire flood air injected system characterized by comprising
First air compressor；
First oil removing pot, first oil removing pot are connected by pipeline with first air compressor, connection described first
The first valve is provided on the pipeline of air compressor and first oil removing pot；
First desiccant canister, the interior hygroscopic agent being equipped with to absorb moisture content in air of first desiccant canister, first desiccant canister
It is connected by pipeline with first oil removing pot, connects and be arranged on first oil removing pot and the pipeline of first desiccant canister
There is the second valve；
First surge tank, first surge tank are connected by pipeline with first desiccant canister, and first buffering is connected
Third valve is provided on the pipeline of tank and first oil removing pot；
Second air compressor, second air compressor is connected by pipeline with first surge tank, described in connection
The 4th valve is provided on the pipeline of first surge tank and second air compressor；
Third air compressor；
Second oil removing pot, second oil removing pot are connected by pipeline with the third air compressor, and the third is connected
The 5th valve is provided on the pipeline of air compressor and second oil removing pot；
Second desiccant canister, the interior hygroscopic agent being equipped with to absorb moisture content in air of second desiccant canister, second desiccant canister
It is connected by pipeline with second oil removing pot, connects and be arranged on second oil removing pot and the pipeline of second desiccant canister
There is the 6th valve；
Second surge tank, second surge tank are connected by pipeline with second desiccant canister, and second buffering is connected
The 7th valve is provided on the pipeline of tank and second oil removing pot；
4th air compressor, the 4th air compressor is connected by pipeline with second surge tank, described in connection
The 8th valve is provided on the pipeline of second surge tank and the 4th air compressor；
First bridge line, first bridge line one end connect the outlet end of first air compressor, and the other end connects
The outlet end of the third air compressor is connect, the 9th valve is set in first bridge line；
Second bridge line, second bridge line one end connect the input end of second air compressor, and the other end connects
The input end of the 4th air compressor is connect, the tenth valve is set in second bridge line；
Inject pipeline, one end of the injection pipeline and the outlet of second air compressor and the 4th air compressor
End is connected, and the other end can be connected with well mouth of oil well.
8. fire flood air injected system as claimed in claim 7, which is characterized in that the quantity of the injection pipeline is more
A, multiple injection pipelines are arranged in parallel；Bypass flow meter and branch check valve are provided on each injection pipeline
With two the 11st valves, the branch check valve is located at the downstream of the bypass flow meter along gas flow direction, wherein one
A 11st valve is located at the upstream of the bypass flow meter along gas flow direction, another described 11st valve edge
Gas flow direction is located at the downstream of the branch check valve.
9. fire flood air injected system as claimed in claim 8, which is characterized in that the injection pipeline of multiple parallel connections
It is connected by main line pipeline with the outlet end of second air compressor and the 4th air compressor, the main line pipe
Main line flowmeter is set on line and main line check valve, the main line check valve are located at the main line flowmeter along gas flow direction
Upstream.
10. fire flood air injected system as claimed in claim 9, which is characterized in that be provided on the main line pipeline
Third surge tank, the third surge tank is between the main line flowmeter and the main line check valve.
11. fire flood air injected system as claimed in claim 10, which is characterized in that the fire flood air injection
System further include: blow-down tank, the blow-down tank by pipeline respectively with first air compressor, the second air compressor,
First oil removing pot, the second oil removing pot, the first desiccant canister, the second desiccant canister, the first surge tank, the second surge tank and third surge tank
It is connected.
12. fire flood air injected system as claimed in claim 10, which is characterized in that the fire flood air injection
System further include: blowdown drum, the blowdown drum by pipeline respectively with first air compressor, the second air compressor,
First oil removing pot, the second oil removing pot, the first desiccant canister, the second desiccant canister, the first surge tank, the second surge tank and third surge tank
It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711077623.9A CN107654223B (en) | 2017-11-06 | 2017-11-06 | Fire flooding oil extraction air injection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711077623.9A CN107654223B (en) | 2017-11-06 | 2017-11-06 | Fire flooding oil extraction air injection system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107654223A CN107654223A (en) | 2018-02-02 |
| CN107654223B true CN107654223B (en) | 2019-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711077623.9A Active CN107654223B (en) | 2017-11-06 | 2017-11-06 | Fire flooding oil extraction air injection system |
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| CN107654223A (en) | 2018-02-02 |
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