CN205862201U - A kind of subsea production tree intelligent control system - Google Patents
A kind of subsea production tree intelligent control system Download PDFInfo
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- CN205862201U CN205862201U CN201620768422.8U CN201620768422U CN205862201U CN 205862201 U CN205862201 U CN 205862201U CN 201620768422 U CN201620768422 U CN 201620768422U CN 205862201 U CN205862201 U CN 205862201U
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- valve
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- water surface
- production
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Abstract
The utility model discloses a kind of subsea production tree intelligent control system, including water surface master station, umbilical cables, subsea control modules (SCM), subsea production tree；Described main control station includes surface control station and water surface PLC control system；By the sensor device being arranged on production tree, the data of subsea production tree are monitored；Water surface PLC control system carries out the admission of data, analysis to the data of monitoring, monitor each data in real time, then send corresponding control instruction and be delivered to subsea control modules through umbilical cables, and then operation subsea control modules completes to control, the control method of water surface PLC control system mainly includes 5 parts: production system, data process, instrument dynamic monitoring, flow-control, signal transmission；Production system includes normal production procedure, above repaiies flow process, work flow and emergent flow process.This utility model controls system by setting up water surface PLC, it is achieved that the automatization that subsea production tree controls, its control accuracy and response speed are all greatly improved.
Description
Technical field
This utility model relates to a kind of subsea production tree control system, belongs to offshore oil machinery equipment field.
Background technology
Safety and steady flowing and the raising exploitation of oil gas in production process are played most important by Subsea Production Control System
Effect, along with marine oil and gas exploitation from shallow sea to deep-sea develop, marine oil and gas exploitation control require improve the most therewith, from mesh
Front semiautomatic control turns to digital automatic control direction to develop comprehensively.Subsea Production Control System mainly uses hydraulic control
System, including full hydraulic system, compound electrohydraulic system.The control system that deep-sea is the most frequently used at present is compound electric liquid control system,
It is communicated with subsea control modules (SCM) by water surface master station, SCM receive master station order on production tree each
Class valve carries out on-off control and carries out aperture control, the simultaneously letter of the sensor on monitoring subsea production tree to producing oil nozzle
Number, signal is passed to water surface master station, when a failure occurs, it can only send alarm, it is impossible to automatically controls, and therefore it has
It is unidirectionally controlled, the shortcoming that digitized degree is low.
For the problems referred to above, there is scholar to carry out correlational study both at home and abroad, and obtain certain achievement, as Harbin Institute of Engineering is big
The Zhu Gaolei of " test subsea production tree control module is developed " of the Wang Junmin learned, China University Of Petroleum Beijing et al. " tests and uses
Subsea production tree control module is developed ", but above-mentioned academy's successes still fail comprehensively to solve the problems referred to above, especially in safety
Ensure and automatization's aspect, there is also deficiency.
Utility model content
The problem existed for existing subsea production tree control system, the utility model proposes a kind of subsea production tree intelligence
Energy control method, has carried out controlling program and has designed and developed, thus realized by setting up water based on PLC subsea control modules
Surface analysis performs processing module, to realize each valve opening of Braking mode production tree and closedown；It is automatically adjusted production oil nozzle, with control
The size of flow processed；Comprehensive utilization monitoring subsea production tree produce pressure, produce temperature, annular pressure, oil gas leakage monitoring,
Production tree valve location, oil nozzle position, oil nozzle pressure reduction, subsurface environment data, identify the security situation that oil field development runs automatically,
And regulate accordingly.
The utility model proposes techniques below scheme:
A kind of subsea production tree intelligence control system, including water surface master station, umbilical cables, subsea control modules (SCM), water
Lower production tree；Storm valve is installed on described subsea production tree, produces main valve, production flutter valve, Annulus master valve, the annular space wing
Valve, well workover valve, switching valve, methanol injection valve, preservative injection valve, paraffin remover injection valve, production passage regulation valve, and it is provided with biography
Sensor arrangement；Described main control station includes surface control station and water surface PLC control system；Water surface master station includes water surface control
Standing and water surface PLC control system, water surface PLC control system connects surface control station, and surface control station connects subsea control modules,
Subsea control modules is connected storm valve respectively by the executor that inside is arranged, is produced main valve, production flutter valve, annular space master
Valve, annulus wing valve, well workover valve, switching valve, methanol injection valve, preservative injection valve, paraffin remover injection valve, production passage regulation
Valve；By the sensor device that is arranged on production tree to the flow of subsea production tree, the state of oil nozzle and aperture, major loop,
Annular space loop, the valve of chemical agent infusion circuit, temperature, the data of pressure are monitored；Water surface PLC control system is to monitoring
Data carry out the admission of data, analysis, it is the most normal to monitor in real time each data, then sends corresponding control instruction through umbilical cord
Cable is delivered to subsea control modules (SCM), by subsea control modules control operation storm valve, produce main valve, produce flutter valve,
Annulus master valve, annulus wing valve, well workover valve, switching valve, methanol injection valve, preservative injection valve, paraffin remover injection valve, production passage
Regulation valve.
Described production tree intelligentized control method is assigned instruction, and then operation water by water surface PLC control system to surface control station
Lower control module completes, and the control method of water surface PLC control system mainly includes 5 parts: production system, data process, instrument
Table dynamic monitoring, flow-control, signal transmission；Production system includes normal production procedure, above repaiies flow process, work flow and emergent
Flow process.
The utility model has the advantage of:
1, newly-increased water surface PLC control system, realizes each valve opening of Braking mode production tree and closedown with this, automatically adjusts
Joint produces oil nozzle, to control the size of flow；
2, the position of sound production arrangement between each valve meets the design requirement of subsea production tree, it is simple to connected by umbilical cables
Newly-increased water surface PLC control system.
Accompanying drawing explanation
Fig. 1 is system structure schematic diagram of the present utility model；
Fig. 2 is control planning figure of the present utility model；
Fig. 3 is the functional diagram of water surface PLC control system of the present utility model；
Fig. 4 is the flow chart of normal production system of the present utility model；
Fig. 5 is to repair flow chart on of the present utility model；
Fig. 6 is operation process chart of the present utility model；
Fig. 7 is emergent flow chart of the present utility model；
Fig. 8 is flow chart of data processing figure of the present utility model；
Fig. 9 is instrument dynamic monitoring flow chart of the present utility model；
Figure 10 is flow-control flow chart of the present utility model；
Figure 11 is transport stream signal journey figure of the present utility model.
In figure, 1, water surface PLC control system, 2, surface control station, 3, subsea control modules, 4, storm valve, 5, raw
Produce main valve, 6, produce flutter valve, 7, Annulus master valve, 8, annulus wing valve, 9, well workover valve, 10, switching valve, 11, methanol injection valve, 12,
Preservative injection valve, 13, paraffin remover injection valve, 14, produce passage regulation valve.
Detailed description of the invention
The utility model is described in further detail for embodiment in below in conjunction with the accompanying drawings, but is not intended that this reality
With novel any restriction.
On the basis of compound electric liquid control system, propose a kind of brand-new design in conjunction with the design of production tree structure and think
The subsea production tree intelligent control system on road and control method thereof.
As depicted in figs. 1 and 2, hydraulic pressure is passed to subsea control modules 3, underwater control through umbilical cables by surface control station 2
Module 3 mainly has two kinds of functions, and one is to control function, and each valve on underwater production facility is controlled by electro-hydraulic mixing
Mode controls, as the storm valve 4 of subsea tree, produced main valve 5, production flutter valve 6, Annulus master valve 7, the annular space wing
Opening of valve 8, switching valve 10, each chemical agent injection valve etc. is controlled with closedown；According to the Exploitation Status that oil field is actual, adjust
The aperture of control choke, regulates and controls flow；And control the chemical agent filling such as methanol, antisludging agent and paraffin remover control and
The opening and closing of related valve；Well workover is controlled to be that annulus wing valve 8, switching valve 10 closes by producing main valve 5, and produce flutter valve 6
Close, Annulus master valve 7 and well workover valve 9 are opened, make workover rig can connect with the annular space of production tree and realize.Another kind of for prison
Brake, its by the sensor device that is arranged on subsea production tree to flow, temperature, pressure, the state of valve, valve
Aperture, the position of valve, oil gas leakage, environments such as subsea are monitored.The information of monitoring is passed by subsea control modules 3 through umbilical cables
Passing water surface PLC control system 1, the information of admission can be preserved by water surface PLC control system 1, and is analyzed it
Processing, if the data of the temperature of admission, pressure, flow are not within normal range, system is automatically reminded to fault warning, and carries out
Analyze reason, generate corresponding instruction, pass to subsea control modules 3 through umbilical cables, subsea control modules 3 carry out accordingly
Operation.
Annulus master valve 7 and annulus wing valve 8 form annular space control valve.
Surface control station 2 and water surface PLC control system 1 constitute control dual system, when event occurs in horizontal PLC control system
During barrier, surface control station 2 still is able to be controlled subsea production system, improves security performance.
As it is shown on figure 3, water surface PLC control system 1 mainly includes 5 parts, including: production system, data process, and instrument is moved
State monitoring, flow-control, signal transmission.Production system includes normal production procedure, above repaiies flow process, work flow and answer torrent
Journey.Connect each other between each module, be an entirety.
As shown in Figure 4, for the flow chart of normal production procedure, its intelligent flow process is as follows:
(1) first check for the state of valve and equipment, in the case of equal normal operation just next step, the most just examine
Repair.
(2) whether the detection pressure of production tree and temperature in normal range, if produce pressure, temperature not normal range it
In, system automatic alarm, water surface PLC control system 1 carries out the analysis of causes to fault, when building the pressure, annular space control valve is opened,
Making the annular space pipeline being connected to the water surface connect with annular space and carry out pressure release, whether detection produces pressure, temperature just the most again
Within the scope of Chang.Until pressure and temp is normal, then enter next step；
(3) opening production passage regulation valve 14, paraffin remover injection valve 13 successively, methanol injection valve 11 and antisludging agent inject
Valve；
(4) open production main valve 5, the discharge capacity of production tree is detected, when, not within normal range, system is warned
Report, PLC control system is analyzed processing, and sends command signal, the adjustment adapting to the aperture of oil nozzle, until discharge capacity
Within normal range, carry out next step；
(5) according to the size of subsea tree discharge capacity, the aperture of paraffin remover injection valve 13, methanol injection valve 11 are set successively
Aperture and the aperture of preservative injection valve 12, make system produce normally；
(6) temperature, pressure are again detected whether within the scope of normal, if producing pressure, temperature not in normal range
Within, system automatic alarm, water surface PLC control system 1 fault is carried out reason and send adjustment instruction be adjusted operation, so
Whether rear detection fault releases, and the most again detects pressure, temperature whether within normal range.If fault can not release,
Then need to stop producing, carry out the detailed detection of fault.When the temperature that detection produces, pressure are within the scope of normal, then
Carry out next step；
(7) system is during normal production, monitors discharge capacity, temperature, pressure in real time the most normally, until monitoring process
Middle fault can not be got rid of or produce and terminates, and carries out the operation terminated；
(8) it is first shut off producing main valve 5, closes other valves the most successively.
As it is shown in figure 5, be the flow chart above repairing flow process, its intelligent flow process is as follows:
(1) first termination of pumping；
(2) it is then switched off producing main valve 5, produces passage regulation valve 14, well workover valve 9, switching valve 10, open Annulus master valve 7
And annulus wing valve 8, make annular space with the annular space pipeline being connected to the water surface and connect to carry out pressure release；
(3) until water surface well head does not has discharge capacity, illustrate that pressure leak process terminates, then carry out workover treatment；
(4) tree cap is first taken out, blanking plug, carry out relevant tubing string and the connection of kit；
(5) close annulus wing valve 8, open well workover valve 9, Annulus master valve 7, carry out the workover treatment being correlated with；
(6) during well workover, the induction apparatus of available down-hole, carry out the location of equipment, when well workover terminates, valve need to be carried out
Door position and the confirmation of valve state, equipment is the most intact, then well workover terminates.
As shown in Figure 6, for the flow chart of work flow, its intelligent flow process is as follows:
(1) work flow includes wax removal, water filling and three kinds of work flows of gas injection；
(2) wax removal flow process, injects pipeline to the electric-hydraulic combined device that runs through by paraffin remover along chemical agent, electric-hydraulic combined runs through
Device is by through to production tree body and boll-weevil hanger, and paraffin remover enters oil pipe by production tree body and hanger, thus enters
Row wax removal operates；
(3) water filling and gas injection flow process, is first turned on producing main valve 5 and producing passage regulation valve 14, closedown Annulus master valve 7,
Annulus wing valve 8, well workover valve 9 and switching valve 10, start injection pump and be injected in oil pipe along pipeline, be re-introduced among stratum.
As it is shown in fig. 7, be the flow chart of emergent flow process, its intelligent flow process is as follows:
(1) emergent flow process mainly builds the pressure and suppresses pump, needs when building the pressure and suppress pump to close storm valve；
(2) a kind of mode can open switching valve 10, and connection should be changed runner and carry out discharge opeing pressure release；
(3) another kind of method is to open annular space control valve, connected ring blank pipe line and annular space, thus carries out pressure release.
As shown in Figure 8, the flow chart processed for data, its intelligent flow process is as follows:
It is that the data of monitoring and data are carried out intelligent comparison analysis, when Monitoring Data is not in normal range that data process
In, PLC control system sending adjustment instruction, down-hole executor be adjusted, and after adjustment, measuring instrument carries out data monitoring
With collection, the data of collection pass to ground PLC system along umbilical cables, again contrast with data base, circulate with this past
Multiple.
As it is shown in figure 9, be the flow chart of instrument dynamic monitoring, its intelligent flow process is as follows:
Instrument dynamic monitoring mainly utilizes underwater sensor and instrument to carry out temperature, pressure and the monitoring of each instrumented data and adopt
Collection, the state of valve and the monitoring of position, electric current, the measurement of voltage, utilize executor to carry out the regulation of valve opening.
As shown in Figure 10, for the flow chart of flow-control, its intelligent flow process is as follows:
The control of flow, is first to be monitored flow, carries out the regulation of flow according to the condition of production, right after regulation
The pressure producing passage is monitored, and easily causes, when pressure raises, the phenomenon that builds the pressure, need to carry out pressure discharge operations, then need convection current again
Amount is monitored.When pressure the most then needs the pressure to producing passage to carry out lasting monitoring.
As shown in figure 11, for the flow chart of signal transmission, its intelligent flow process is as follows:
The transmission of signal is that PLC control system sends the signal of telecommunication and passes to subsea control modules 3 by umbilical cables, controls under water
Signal is passed to the most each executor through cable by molding block 3, the implementation status of executor under water and the signal warp of sensor
Cable, SCM, umbilical cables passes to water surface PLC control system.
The above, be only preferred embodiment of the present utility model, not this utility model is made any in form
Restriction, although this utility model is disclosed above with preferred embodiment, but is not limited to this utility model, any ripe
Know professional and technical personnel, in the range of without departing from technical solutions of the utility model, when in the technology of available the disclosure above
Hold and make a little change or be modified to the Equivalent embodiments of equivalent variations, as long as without departing from technical solutions of the utility model
Hold, any simple modification, equivalent variations and modification above example made according to technical spirit of the present utility model, the most still
Belong in the range of technical solutions of the utility model.
Claims (1)
1. a subsea production tree intelligence control system, including water surface master station, umbilical cables, subsea control modules, submerged production
Tree, it is characterised in that be provided with storm valve on described subsea production tree, produce main valve, production flutter valve, Annulus master valve, ring
Hollow wing valve, well workover valve, switching valve, methanol injection valve, preservative injection valve, paraffin remover injection valve, production passage regulation valve, and set
There is sensor device；Described main control station includes surface control station and water surface PLC control system；Water surface master station includes the water surface
Control station and water surface PLC control system, water surface PLC control system connects surface control station, and surface control station connects underwater control
Module, subsea control modules is connected storm valve respectively by the executor that inside is arranged, is produced main valve, production flutter valve, ring
Empty main valve, annulus wing valve, well workover valve, switching valve, methanol injection valve, preservative injection valve, paraffin remover injection valve, production passage are adjusted
Joint valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620768422.8U CN205862201U (en) | 2016-07-20 | 2016-07-20 | A kind of subsea production tree intelligent control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620768422.8U CN205862201U (en) | 2016-07-20 | 2016-07-20 | A kind of subsea production tree intelligent control system |
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| Publication Number | Publication Date |
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| CN205862201U true CN205862201U (en) | 2017-01-04 |
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| CN201620768422.8U Expired - Fee Related CN205862201U (en) | 2016-07-20 | 2016-07-20 | A kind of subsea production tree intelligent control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106020102A (en) * | 2016-07-20 | 2016-10-12 | 西南石油大学 | Smart control system for subsea tree and control method thereof |
-
2016
- 2016-07-20 CN CN201620768422.8U patent/CN205862201U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106020102A (en) * | 2016-07-20 | 2016-10-12 | 西南石油大学 | Smart control system for subsea tree and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170104 Termination date: 20180720 |