CN206592113U - A kind of air foam flooding shaft oil production field device - Google Patents
A kind of air foam flooding shaft oil production field device Download PDFInfo
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- CN206592113U CN206592113U CN201720289543.9U CN201720289543U CN206592113U CN 206592113 U CN206592113 U CN 206592113U CN 201720289543 U CN201720289543 U CN 201720289543U CN 206592113 U CN206592113 U CN 206592113U
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Abstract
The utility model provides a kind of air foam flooding shaft oil production field device, pressure transmitter one is provided between production wellhead and oil pipe outlet, pressure transmitter two is provided between production wellhead and casing gas outlet, oil pipe exports and is sequentially provided with block valve three and valve one on the pipeline between the ball-throwing apparatus area of well site, casing gas exports and is sequentially provided with block valve four on the pipeline between casing gas constant-pressure deflation area, check-valves, valve two, pressure transmitter one, block valve three, valve one, pressure transmitter two and valve two are both electrically connected with well site RTU, the utility model passes through normal production procedure, flow occurs for has channeling, safety vent flow, oxygen content monitoring flow ensures production safety, automaticity height and safety and environmental protection, solve air foam displacement of reservoir oil human users labor intensity big and there is the technical problem of potential safety hazard, testing or there is wider application prospect using the oil field of tertiary oil recovery.
Description
Technical field
The utility model is related to application of the air foam technology of reservoir sweep in oil-gas field surface engineering, and in particular to Yi Zhongkong
Gas foam drives oil production field device.
Background technology
Changqing oilfields belong to typical spy/extra-low-permeability reservoir, and reservoir properties are poor, anisotropism is strong, microcrack development, former
Beginning gas-oil ratio is high.Tested in oily area after air foam technology of reservoir sweep, there is higher has channeling risk, especially in encrypted area, prediction
Gas-oil ratio can reach 500m after has channeling3/ more than t；Has channeling once occurs seriously threaten ground transportation network and downstream oil gas collection
The safety of defeated yard.
At the same time, oxygen demand is indefinite in oil reservoir, and injection gas migration and accumulation direction are failed to understand, investment and operating cost
Pressure is big to wait many factors, and limitation injection end subtracts the downward of oxygen index, therefore scene has larger Safety Risk in Production and quick-fried
Fried risk.
At present, the domestic oil field for having carried out air foam oil displacement test, the side for taking Christmas tree wellhead to be vented manually mostly
Formula carries out direct pressure release, not only increases the labor intensity of operating personnel, also in the presence of serious potential safety hazard.Therefore, air is solved
Foam flooding technology and ground surface works safety problem are imperative.
Utility model content
The purpose of this utility model overcomes air foam displacement of reservoir oil human users labor intensity big and there is potential safety hazard
There is provided a kind of air foam flooding shaft oil production field device for technical problem.
The technical solution of the utility model there is provided on a kind of air foam flooding shaft oil production field device, the production wellhead
Production tree is connected with, production tree is provided with oil pipe outlet and casing gas outlet, oil pipe and the oil pipe outlet of production wellhead, oil
Pipe outlet is connected to well site ball-throwing apparatus area, sleeve pipe and the casing gas outlet of production wellhead, casing gas outlet by pipeline
Casing gas constant-pressure deflation area is connected to by pipeline, the well site ball-throwing apparatus area is connected with casing gas constant-pressure deflation area by pipeline
Connect and pass to flow line, it is characterised in that：Pressure transmitter one is provided between production wellhead and the oil pipe outlet, it is described to adopt
Pressure transmitter two, the pipeline between the oil pipe outlet and well site ball-throwing apparatus area are provided between oil well mouthful and casing gas outlet
On be sequentially provided with block valve three and valve one, is set successively on the pipeline between the outlet of described sleeve pipe gas and casing gas constant-pressure deflation area
There are block valve four, check-valves, valve two, the pressure transmitter one, block valve three, valve one, pressure transmitter two and valve
Two are both electrically connected with well site RTU.
Block valve one and pressure gauge one, the sleeve pipe of production wellhead are provided between oil pipe and the oil pipe outlet of the production wellhead
Pressure gauge two and block valve two are provided between casing gas outlet.
It is connected with pipeline one and pipeline two, and pipeline one and pipeline on pipeline between the check-valves and valve two in turn
Safety valve one and safety valve two are all respectively arranged with two.
The entrance point of the safety valve one and safety valve two is designed with ball valve.
The port of export of the safety valve one and safety valve two is designed with spark arrester.
On-line monitoring interface is additionally provided with pipeline between the block valve three and valve one, on-line monitoring interface is provided with
Monitor, and the monitor electrically connects with well site RTU.
Metering interface is additionally provided with the flow line.
This air foam flooding shaft oil production field technique of the present utility model, at least comprises the following steps：
Step 1）Pressure alarm value is set on pressure transmitter one and pressure transmitter two, it is ensured that tubing pressure and sleeve pipe
Pressure sets safe take-off value in safe range in safety valve one and safety valve two, and the safe take-off value of safety valve one is small
In the one-level security alarm value of setting oxygen on safety valve two, the monitor set on on-line monitoring interface and secondary safety alarm
Value, and one-level security alarm value is less than secondary safety alarming value；
Step 2）When oil well is normally produced, crude oil is produced from the oil pipe of production wellhead, into well site ball-throwing apparatus area, companion
Anger is produced through producing well head casing, sleeve pipe gas level pressure air-bleed area, so far, through flow line after crude oil and associated gas mixing
It is directly outer defeated, well site single tube oil-collecting flow is realized while also metering can be sampled from the metering interface on flow line；
Step 3）When oil well pressure is abnormal or occurs has channeling, casing pressure rises first, and pressure reaches pressure transmitter two
During the alarming value of setting, block valve four blocks pipeline, stops well and at the same time pressure transmitter two of alarming uploads pressure signal
To well site RTU, RTU control block valves three in well site block pipeline, if tubing pressure rises, pressure reaches the setting of pressure transmitter one
Alarming value when, pressure signal is uploaded to well site RTU by pressure transmitter one, and RTU control block valves three in well site block pipeline, stop
Well is simultaneously alarmed, and after treating that wellbore pressure recovers to normal production pressure, and investigation is without danger, re-starts oil producing operation and production；
Step 4）When attonity or the failure simultaneously of pressure transmitter one, pressure transmitter two, block valve three and block valve four
When, the adjoint a large amount of associated gases of has channeling can make safety valve one or safety valve two by ball valve normally opened on pipeline one or pipeline two
Jump is opened, pipe network emptying is carried out, second class protection is carried out to ground system, treats that wellbore pressure recovers to normal production pressure, and investigation
Behind danger, oil producing operation and production are re-started；
Step 5）The oxygen concentration of crude oil header is monitored on-line, when the oxygen content of on-line monitoring interface is pacified more than or equal to one-level
During full alarming value, monitor up-delivering signal is to well site RTU and alarms, and is investigated, it is ensured that site safety, when on-line monitoring interface
Oxygen content be more than or equal to secondary safety alarming value when, monitor up-delivering signal is to well site RTU and alarms, well site RTU control valves
Door one and the emergency cut-off of valve two, well site stop recovering the oil, and injection station stops gas injection, to ensure production safety, oxygen content to be detected
Secure threshold is reached, oil producing operation and production is re-started.
The beneficial effects of the utility model：
（1）This air foam flooding shaft oil production field device that the utility model is provided can realize well head pressure monitoring and urgent
Block be combined, overpressure relief with interlocking stop well be combined, it is oxygen-containing monitoring with promptly stopping to note the function being combined, two class protection stream
Journey, it is possible to resolve has channeling promptly blocks failure accident when occurring, realizes safety vent pressure release, protects the work(of downstream gathering system flow
Can, and have the advantages that concise in technology, process optimization, construction are simple and convenient to operate and safety and environmental protection, it is adaptable to air foam flooding shaft
The oil production field technique of oil, is equally applicable to the oil production field anti-gas channeling technique of other gas displacement of reservoir oils, and gas drive oil recovery oil can be achieved
The well site single tube oil-collecting in field, is testing or is having wider application prospect using the oil field of tertiary oil recovery.
（2）This air foam flooding shaft oil production field device that the utility model is provided passes through in pressure transmitter one and pressure
Pressure alarm value is set on transmitter two, when oil well pressure starts abnormal or generation has channeling, it is ensured that tubing pressure and sleeve pipe pressure
Power is in safe range.
（3）This air foam flooding shaft oil production field device that the utility model is provided passes through in safety valve one or safety valve two
Safe take-off value is set, and the safe take-off value of safety valve one is less than safety valve two, when pressure transmitter one, pressure transmitter two,
Gas in block valve three and block valve four attonity or during failure simultaneously, safety valve one or the take-off of safety valve two, blow-down pipe, reduces
Pressure.
（4）This air foam flooding shaft oil production field device that the utility model is provided on on-line monitoring interface by setting
The one-level security alarm value and secondary safety alarming value of oxygen are set on monitor, and one-level security alarm value is less than secondary safety
Alarming value, monitors the oxygen concentration of crude oil header on-line, it is to avoid oxygen concentration is excessive to cause accident.
（5）Oil pipe and oil pipe that this air foam flooding shaft oil production field device that the utility model is provided passes through production wellhead
Block valve one and pressure gauge one are provided between outlet, pressure gauge two is sequentially provided between sleeve pipe and the casing gas outlet of production wellhead
With block valve two, it is easy to observation well head pressure and switch control is carried out to well head.
（6）This air foam flooding shaft oil production field device that the utility model is provided by block valve three and valve one it
Between pipeline on be additionally provided with on-line monitoring interface, on-line monitoring interface is provided with monitor, and the monitor is electrically connected with well site RTU
Connect, be easy to monitor the oxygen concentration in crude oil header, it is ensured that site safety.
（7）This air foam flooding shaft oil production field device and its technique that the utility model is provided pass through in the He of safety valve one
The entrance point of safety valve two is designed with ball valve, easy access and replacing safety valve.
（8）This air foam flooding shaft oil production field device that the utility model is provided passes through in safety valve one and safety valve two
The port of export be designed with spark arrester, it is to avoid occur accident.
（9）This air foam flooding shaft oil production field device that the utility model is provided on flow line by being additionally provided with meter
Interface is measured, is easy to metering.
（10）This air foam flooding shaft oil production field device block valve one and block valve two that the utility model is provided are used
Manual block valve, when device occurs abnormal, can manual-lock, block valve three promptly cut using the high-low pressure with electric operator
Disconnected valve, not only can sense loine pressure by the pressure pipe of valve body, be automatically turned off, can also be sended over by signal wire
Instruction close down, block valve four uses the urgent block valve of mechanical high-low pressure, and pipeline is sensed by the pressure pipe of valve body
Pressure, is automatically turned off.
The utility model is described in further details below with reference to accompanying drawing.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model air foam flooding shaft oil production field device；
Fig. 2 is electrical connection schematic diagram of the present utility model.
Description of reference numerals：1st, production wellhead；2nd, production tree；3rd, block valve one；4th, pressure gauge one；5th, pressure transmitter
One；6th, block valve three；7th, valve one；8th, ball-throwing apparatus area；9th, pressure gauge two；10th, pressure transmitter two；11st, block valve two；
12nd, block valve four；13rd, check-valves；14th, valve two；15th, casing gas constant-pressure vent valve area；16th, pipeline one；17th, safety valve one；
18th, pipeline two；19th, safety valve two；20th, flow line；21st, oil pipe is exported；22nd, casing gas is exported；23rd, interface is monitored on-line；
24th, metering interface.
Embodiment
Embodiment 1：
In order to overcome air foam displacement of reservoir oil human users labor intensity big and there is the technical problem of potential safety hazard, this implementation
Example provides and is connected with oil recovery on a kind of air foam flooding shaft oil production field device as depicted in figs. 1 and 2, the production wellhead 1
Tree 2, production tree 2 connects provided with oil pipe outlet 21 and casing gas outlet 22, the oil pipe of production wellhead 1 with oil pipe outlet 21, oil
Pipe outlet 21 is connected to well site ball-throwing apparatus area 8 by pipeline, and the sleeve pipe of production wellhead 1 is connected with casing gas outlet 22, sleeve pipe
Gas outlet 22 is connected to casing gas constant-pressure deflation area 15 by pipeline, and the well site ball-throwing apparatus area 8 deflates with casing gas constant-pressure
Area 15 is connected by pipeline and passes to flow line 20, it is characterised in that：It is provided between production wellhead 1 and the oil pipe outlet 21
Pressure transmitter 1, is provided with pressure transmitter 2 10, the oil pipe outlet between production wellhead 1 and the casing gas outlet 22
Be sequentially provided with block valve 36 and valve 1 on pipeline between 21 and well site ball-throwing apparatus area 8, described sleeve pipe gas outlet 22 with
Block valve 4 12, check-valves 13, valve 2 14 are sequentially provided with pipeline between casing gas constant-pressure deflation area 15, the pressure becomes
Device 1, block valve 36, valve 1, pressure transmitter 2 10 and valve 2 14 is sent to be both electrically connected with well site RTU.
This air foam flooding shaft oil production field device that the utility model is provided, at least comprises the following steps：
Step 1）Pressure alarm value is set on pressure transmitter 1 and pressure transmitter 2 10, when oil well pressure starts
During abnormal or generation has channeling, it is ensured that tubing pressure and casing pressure are in safe range；In safety valve 1 or safety valve 2 19
Safe take-off value is set, and the safe take-off value of safety valve 1 is less than safety valve 2 19, when pressure transmitter 1, pressure inverting
Device 2 10, block valve 36 and block valve 4 12 attonity or during failure simultaneously, safety valve 1 or the take-off of safety valve 2 19 are put
Gas in blank pipe, reduces pressure；On on-line monitoring interface 23 on the monitor that sets the one-level security alarm value of setting oxygen and
Secondary safety alarming value, and one-level security alarm value is less than secondary safety alarming value, monitors the oxygen concentration of crude oil header on-line,
Avoid oxygen concentration is excessive from causing accident；
Step 2）When oil well is normally produced, crude oil is produced from the oil pipe of production wellhead 1, into well site ball-throwing apparatus area 8,
Associated gas is produced through the sleeve pipe of production wellhead 1, sleeve pipe gas level pressure air-bleed area 15, so far, through going out after crude oil and associated gas mixing
Oil pipeline is directly outer defeated, realizes well site single tube oil-collecting flow while metering can also be sampled from the metering interface on flow line；
Step 3）When oil well pressure is abnormal or occurs has channeling, casing pressure rises first, and pressure reaches pressure transmitter two
During the alarming value of 10 settings, block valve 4 12 blocks pipeline, stops well and at the same time pressure transmitter 2 10 of alarming believes pressure
Well site RTU number is uploaded to, RTU control block valves 36 in well site block pipeline, if tubing pressure rises, pressure reaches pressure inverting
During the alarming value that device 1 is set, pressure signal is uploaded to well site RTU, well site RTU control block valves 36 by pressure transmitter 1
Pipeline is blocked, stops well and alarms, after treating that wellbore pressure recovers to normal production pressure, and investigation is without danger, oil recovery is re-started and makees
Industry and production；
Step 4）When pressure transmitter 1, pressure transmitter 2 10, block valve 36 and block valve 4 12 while attonity
Or during failure, due to being connected with pipeline 1 and pipeline 2 18, and pipe on the pipeline between check-valves 13 and valve 2 14 in turn
Safety valve 1 and safety valve 2 19, therefore the adjoint a large amount of associated gases of has channeling are all respectively arranged with line 1 and pipeline 2 18
By ball valve normally opened on pipeline 1 or pipeline 2 18 safety valve 1 or safety valve 2 19 can be made to open jump, carry out pipe network and put
Sky, second class protection is carried out to ground system, after treating that wellbore pressure recovers to normal production pressure, and investigation is without danger, is re-started
Oil producing operation and production；
Step 5）The oxygen concentration of crude oil header is monitored on-line, when the oxygen content of on-line monitoring interface 23 is more than or equal to one-level
During security alarm value, monitor up-delivering signal is to well site RTU and alarms, and is investigated, it is ensured that site safety, when on-line monitoring connects
When the oxygen content of mouth 23 is more than or equal to secondary safety alarming value, monitor up-delivering signal is to well site RTU and alarms, well site RTU controls
Valve 1 and valve 2 14 emergency cut-off processed, well site stops recovering the oil, and injection station stops gas injection, to be detected to ensure production safety
Oxygen content reaches secure threshold, re-starts oil producing operation and production.
This air foam flooding shaft oil production field device that the utility model is provided can realize that well head pressure monitoring is cut with urgent
It is disconnected be combined, overpressure relief stops that well is combined, oxygen-containing monitoring is with promptly stopping to note the function being combined, two class protection stream with interlocking
Journey, it is big and there is the technical problem of potential safety hazard to solve air foam displacement of reservoir oil human users labor intensity, realizes safety vent
Pressure release, protects the function of downstream gathering system flow, and be simple and convenient to operate and pacify with concise in technology, process optimization, construction
The advantages of loopful is protected, it is adaptable to the oil production field technique of the air foam displacement of reservoir oil, is equally applicable to the producing well of other gas displacement of reservoir oils
Field anti-gas channeling technique, can be achieved the well site single tube oil-collecting in gas drive oil recovery oil field, is testing or is being had using the oil field of tertiary oil recovery
Wider application prospect.
Embodiment 2：
On the basis of embodiment 1, a kind of air foam flooding shaft oil production field device is present embodiments provided, for the ease of seeing
Examine well head pressure and switch control is carried out to well head, be provided with and block between oil pipe and the oil pipe outlet 21 of the production wellhead 1
Valve 1 and pressure gauge 1, pressure gauge 29 and block valve two are sequentially provided between sleeve pipe and the casing gas outlet 22 of production wellhead 1
11。
The block valve 1 and block valve 2 11 use manual block valve, can manual-lock when device occurs abnormal.Institute
State block valve 36 and use the urgent block valve of the high-low pressure with electric operator, not only can be by the pressure pipe of valve body
Sense loine pressure, be automatically turned off, the instruction that can be also sended over by signal wire is closed down.The block valve 4 12 is using machinery
The urgent block valve of high-low pressure of formula, senses loine pressure by the pressure pipe of valve body, is automatically turned off.
For the ease of overhauling and changing safety valve, the entrance point of the safety valve 1 and safety valve 2 19 is designed with ball
Valve.
The port of export of the safety valve 1 and safety valve 2 19 is designed with spark arrester, it is to avoid occur accident.
There is oxygen in crude oil header, it is described for the ease of the oxygen concentration in monitoring crude oil header, it is ensured that site safety
On-line monitoring interface 23 is additionally provided with pipeline between block valve 36 and valve 1, on-line monitoring interface 23 is provided with monitoring
Instrument, and the monitor electrically connects with well site RTU.
For the ease of metering, metering interface 24 is additionally provided with the flow line 20.
Exemplified as above is only for example, not constituting to protection domain of the present utility model to of the present utility model
Limitation, it is every to be belonged to the same or analogous design of the utility model within protection domain of the present utility model.
Claims (7)
1. a kind of air foam flooding shaft oil production field device, the production wellhead（1）On be connected with production tree（2）, production tree（2）On
Provided with oil pipe outlet（21）With casing gas outlet（22）, production wellhead（1）Oil pipe and oil pipe export（21）Connection, oil pipe outlet
（21）Well site ball-throwing apparatus area is connected to by pipeline（8）, production wellhead（1）Sleeve pipe and casing gas export（22）Connection, set
Pipe gas is exported（22）Casing gas constant-pressure deflation area is connected to by pipeline（15）, the well site ball-throwing apparatus area（8）With casing gas
Level pressure air-bleed area（15）Connected by pipeline and pass to flow line（20）, it is characterised in that：The production wellhead（1）With oil pipe
Outlet（21）Between be provided with pressure transmitter one（5）, the production wellhead（1）Exported with casing gas（22）Between provided with pressure become
Send device two（10）, the oil pipe outlet（21）With well site ball-throwing apparatus area（8）Between pipeline on be sequentially provided with block valve three（6）
With valve one（7）, the outlet of described sleeve pipe gas（22）With casing gas constant-pressure deflation area（15）Between pipeline on be sequentially provided with and block
Valve four（12）, check-valves（13）, valve two（14）, the pressure transmitter one（5）, block valve three（6）, valve one（7）, pressure
Transmitter two（10）With valve two（14）It is both electrically connected with well site RTU.
2. air foam flooding shaft oil production field device as claimed in claim 1, it is characterised in that：The production wellhead（1）Oil
Pipe is exported with oil pipe（21）Between be provided with block valve one（3）With pressure gauge one（4）, production wellhead（1）Sleeve pipe go out with casing gas
Mouthful（22）Between be provided with pressure gauge two（9）With block valve two（11）.
3. air foam flooding shaft oil production field device as claimed in claim 1, it is characterised in that：The check-valves（13）With valve
Two（14）Between pipeline on be connected with pipeline one in turn（16）With pipeline two（18）, and pipeline one（16）With pipeline two（18）On
All it is respectively arranged with safety valve one（17）With safety valve two（19）.
4. air foam flooding shaft oil production field device as claimed in claim 3, it is characterised in that：The safety valve one（17）And peace
Full valve two（19）Entrance point be designed with ball valve.
5. air foam flooding shaft oil production field device as claimed in claim 3, it is characterised in that：The safety valve one（17）And peace
Full valve two（19）The port of export be designed with spark arrester.
6. air foam flooding shaft oil production field device as claimed in claim 1, it is characterised in that：The block valve three（6）And valve
Men Yi（7）Between pipeline on be additionally provided with on-line monitoring interface（23）, monitor interface on-line（23）It is provided with monitor, and the prison
Instrument is surveyed to electrically connect with well site RTU.
7. air foam flooding shaft oil production field device as claimed in claim 1, it is characterised in that：The flow line（20）It is upper to go back
Provided with metering interface（24）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720289543.9U CN206592113U (en) | 2017-03-23 | 2017-03-23 | A kind of air foam flooding shaft oil production field device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720289543.9U CN206592113U (en) | 2017-03-23 | 2017-03-23 | A kind of air foam flooding shaft oil production field device |
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| Publication Number | Publication Date |
|---|---|
| CN206592113U true CN206592113U (en) | 2017-10-27 |
Family
ID=60121667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720289543.9U Active CN206592113U (en) | 2017-03-23 | 2017-03-23 | A kind of air foam flooding shaft oil production field device |
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| Country | Link |
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| CN (1) | CN206592113U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761622A (en) * | 2017-03-23 | 2017-05-31 | 西安长庆科技工程有限责任公司 | A kind of air foam flooding shaft oil production field device and its technique |
| CN109798109A (en) * | 2018-12-28 | 2019-05-24 | 中国石油天然气股份有限公司 | A kind of air foam oil displacement test casinghead gas alters monitoring alarm and method |
| CN110164094A (en) * | 2019-05-06 | 2019-08-23 | 中国石油天然气股份有限公司 | A kind of air foam displacement of reservoir oil corresponds to oil well anti-gas channeling alarm method |
-
2017
- 2017-03-23 CN CN201720289543.9U patent/CN206592113U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761622A (en) * | 2017-03-23 | 2017-05-31 | 西安长庆科技工程有限责任公司 | A kind of air foam flooding shaft oil production field device and its technique |
| CN106761622B (en) * | 2017-03-23 | 2023-03-10 | 西安长庆科技工程有限责任公司 | Air foam flooding oil production well site device and process thereof |
| CN109798109A (en) * | 2018-12-28 | 2019-05-24 | 中国石油天然气股份有限公司 | A kind of air foam oil displacement test casinghead gas alters monitoring alarm and method |
| CN110164094A (en) * | 2019-05-06 | 2019-08-23 | 中国石油天然气股份有限公司 | A kind of air foam displacement of reservoir oil corresponds to oil well anti-gas channeling alarm method |
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