CN106972610A - Net electric power workover rig energy storage control system and its control method - Google Patents
Net electric power workover rig energy storage control system and its control method Download PDFInfo
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- CN106972610A CN106972610A CN201710235871.5A CN201710235871A CN106972610A CN 106972610 A CN106972610 A CN 106972610A CN 201710235871 A CN201710235871 A CN 201710235871A CN 106972610 A CN106972610 A CN 106972610A
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- 238000004146 energy storage Methods 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000005183 dynamical system Methods 0.000 claims abstract description 24
- 230000008569 process Effects 0.000 claims description 19
- 230000009471 action Effects 0.000 claims description 15
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims 1
- 230000005611 electricity Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
A kind of net electric power workover rig energy storage control system and its control method.Well site power network of the present invention, well site transformer, dynamical system, work operations unit are sequentially connected；Dynamical system includes power control unit, energy-storage units, power unit, wherein：Power control unit is connected with well site transformer, and well site electric energy is accessed；Power control unit is used to control energy-storage units and power unit, power unit driving work operations cell operation, so as to complete workover treatment.In addition, present invention additionally comprises the control method of net electric power workover rig energy storage control system.Its advantage is to be that high-power workover rig is powered using existing power network, it is ensured that the high efficiency of the work of net electric power workover rig, reduce operating cost.
Description
Technical field
The present invention relates to petroleum well servicing rig technical field, and in particular to the electrodynamic workover rig energy storage control of one kind application net
System and its control method.
Background technology
Vehicle carried well repairing machine is the mobile device for being widely used in workover treatment, for recovering oil-water well normally production or raising
The construction operation of production capacity, main to include inspection pump, sand washing, well-flushing, change envelope, water blockoff etc., the operating type of workover rig is mainly
Oil pipe, sucker rod are removed, and the course of work includes raising, three job steps of shackle and decentralization, the work of this loop cycle
Feature needs workover rig to have corresponding power matching.
At present, conventional workover rig is using diesel engine as operation power source, due to the reason such as product oil price is high, energy consumption is big,
Workover cost remains high, and fuels and energy well workover also has energy transformation ratio is low, discharge amount of pollution is high, operating noise is big etc.
Environmental issue.Electric workover rig is compared with diesel powered workover rig with environmental protection, operating cost is low, noise is small, transmission efficiency
It is high and the advantages of improve operating personnel's condition of work, progressively diesel oil substitute power workover rig.
Match somebody with somebody standby electricity by oil pumper more than oilfield electric net, used by main power network through the conveying of well site transformer for oil pumper.At present,
Use " individual well is monotropic " power supply mode, i.e., one transformer is that an oil pumper is powered more；Some areas use " many wells are monotropic "
Power supply mode, i.e., be that many mouthfuls of oil wells are powered with a high-power transformer, to improve transformer load rate, reduction loss." individual well
It is monotropic " most of well site transformer capacity is 30 ~ 50kVA, and vehicle carried well repairing machine installed power will be far longer than and this be equipped with electricity
Power, if the neighbouring well site transformer of access, can break power network because of electric workover rig work electricity consumption and power balance, the other oil pumping of influence
The normal work of machine or electrical equipment.If matching electric workover rig input power according to well site transformer capacity, necessarily cause
Electric workover rig operating efficiency is substantially reduced, and influences operation timeliness.If being powered according to petroleum well servicing rig power demand increase power network
Ability, expands well site transformer capacity, not only invests huge, and under oil recovery operating mode, power network utilization rate is very low, causes power network
A large amount of wastes of resource.
The content of the invention
In order to overcome the electricity needs of existing well site net electricity and electric workover rig to mismatch, workover treatment efficiency is low, cost
High deficiency, the present invention provides a kind of net electric power workover rig energy storage control system and its control method.
The technical solution adopted for the present invention to solve the technical problems is：A kind of net electric power workover rig energy storage control system
Including well site power network, well site transformer, the high-tension electricity of well site power network conveying accesses workover rig, the well after the transformer of well site
Field power network, well site transformer, dynamical system, work operations unit are sequentially connected；
The dynamical system provides rotary power for net electric power workover rig, on workover rig voluntarily chassis；The operation
The rotary power that dynamical system is exported is changed into straight line and removes power by working cell, for completing net electric power workover rig
Rountrip, by workover rig, voluntarily chassis is carried, and is started working after in-site installation.
The dynamical system includes power control unit, energy-storage units, power unit, wherein：Power control unit and well
Field transformer is connected, and well site electric energy is accessed；Power control unit is used to control energy-storage units and power unit, power list
Member driving work operations cell operation, so as to complete workover treatment.
The energy-storage units are energy storage components, and specific form of energy includes electric energy or hydraulic pressure；When dynamical system is electricity
During drive form, energy-storage units are battery and super capacitor；When dynamical system is hydraulic-driven form, energy-storage units are liquid
Press accumulator.
A kind of control method of the net electric power workover rig energy storage control system, its step is：
Step A, sets the action setting value V of the DC voltage of net electric power workover rig energy storage control system0；
Step B, the DC voltage value V that power control unit is monitored in real time1With action setting value V0It is compared, it is determined that dynamic
Whether power unit is in running order；
Step C, when surveying DC voltage value >=action setting value, i.e.,：V1≥V0, power unit be in off working state,
Power control unit would automatically turn on energy-storage units charge mode, and the energy for netting electric power supply is transferred in energy-storage units；In energy storage
After unit is fully charged, power control unit closes energy-storage units charge function automatically；
Step D, when the magnitude of voltage ＜ of DC side acts setting value, i.e.,：V1＜ V0, the power unit of dynamical system is in work
State, under power control unit control, is powered unit, while monitoring the voltage of DC side by the energy of the electric power supply of net
Value；Power control unit would automatically turn on energy-storage units discharge mode, be simultaneously power unit by the electric power supply of net and energy-storage units
Electric energy is provided；
Step E, when surveying DC voltage value >=action setting value, i.e.,：V1≥V0, power unit be in off working state,
Power control unit will automatically turn on energy-storage units charge mode again, and the energy for netting electric power supply is transferred in energy-storage units；
After energy-storage units are fully charged, power control unit closes energy-storage units charge function automatically；
Step F, after charging complete, power control unit will turn off the charge function of energy-storage units, prepare next work
Circulation；
According to the decentralization of well workover, lifting, shackle job requirements, step B- steps F moves in circles, until completing workover treatment, work
Work terminates.
The action setting value V of DC voltage0Determined according to DC voltage, DC voltage is well site standard power electricity
Pressure is multiplied by DC voltage coefficient.When the well site standard power voltage is 380V, DC voltage coefficient is。
The power unit working condition refers to that workover rig is in lifting process；The power unit off working state refers to
Workover rig is in decentralization either shackle process.
The step C is the decentralization operation process of workover rig；The step D is the lifting operation process of workover rig；It is described
Shackles and/or decentralization operation process of the step E for workover rig.
The beneficial effects of the invention are as follows, it is reasonable in design, the well site transformer worked for oil pumper can be directly accessed nearby,
It is that high-power workover rig is powered using existing power network, it is ensured that the high efficiency of net electric power workover rig work, and does not interfere with existing
Power network normal power supply and the normal of other electrical equipments are used, so as to reduce well workover energy consumption, reduce operating cost, while environmental protection is high
Effect, realizes " replacing oil by electricity " of workover treatment.
Brief description of the drawings
Fig. 1 is the schematic diagram of net electric power workover rig energy storage control system of the present invention.
Fig. 2 is the flow chart of the control method of net electric power workover rig energy storage control system of the present invention.
In figure：1. well site power network, 2. well site transformers, 3. dynamical systems, 4. work operations units, 5. dynamic Control lists
Member, 6. energy-storage units, 7. power units.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.But, those skilled in the art should know
, the invention is not restricted to listed embodiment, as long as meeting the spirit of the present invention, should all be included in the present invention
Protection domain in.
Referring to accompanying drawing 1, the schematic diagram of net electric power workover rig energy storage control system of the present invention.A kind of net electric power of the present invention
Workover rig energy storage control system, mainly includes well site power network 1, well site transformer 2, dynamical system 3, work operations unit 4, well site
Power network 1, well site transformer 2, dynamical system 3, work operations unit 4 are sequentially connected；The high-tension electricity that well site power network 1 is conveyed is through well site
After transformer 2, access workover rig dynamical system 3.The dynamical system 3 provides rotary power for net electric power workover rig, installs
On workover rig voluntarily chassis；The work operations unit 4 is used for the rountrip for completing workover rig, can be by dynamical system institute
The rotary power of output is changed into straight line and removes power, and by workover rig, voluntarily chassis is carried, by being started working after in-site installation.
The dynamical system 3 includes power control unit 5, energy-storage units 6, power unit 7, wherein：The dynamic Control
Unit 5 is connected with well site transformer 2, and well site electric energy is accessed；The power control unit 5 be used for control energy-storage units 6 with
And power unit 7, the driving work operations of power unit 7 unit 4 works, so as to complete workover treatment.
Specifically, the energy-storage units 6 are energy storage components, specific form of energy includes electric energy or hydraulic pressure or other energy
Amount；When dynamical system 3 is electric drive form, energy-storage units 6 are battery and super capacitor；When dynamical system 3 is driven for hydraulic pressure
During dynamic form, energy-storage units 6 are hydraulic accumulators.When using other energy modes, energy-storage units 6 are corresponding component.
The workover treatment process of workover rig is divided into two stages, i.e. raising and decentralization tubing string, and each stage includes some
Rise and the decentralization course of work, workover rig is periodicity power demand in the course of work, and this course of work can be divided into three behaviour
Make step, i.e. raising, shackle, decentralization, usual three steps take it is essentially identical, respectively account for a circulation total time-consuming three/
One.In three operating procedures, raising process workover rig power output is maximum（I.e. energy consumption is maximum）, shackle, decentralization process are not required to
Want power or only need to smaller power.Therefore, in the lifting operation process of workover rig, power unit 7 is in running order；Repairing
The decentralization of well machine or shackle operation process, power unit 7 are in off working state.
Referring to accompanying drawing 2, the flow chart of the control method of net electric power workover rig energy storage control system of the present invention.Net of the present invention
The control method of electric power workover rig energy storage control system, it is comprised the concrete steps that：
Step A, sets the action setting value V of the DC voltage of net electric power workover rig energy storage control system0；
Step B, the DC voltage value V that power control unit 5 is monitored in real time1With action setting value V0It is compared, it is determined that
Whether power unit 7 is in running order；
Step C, when surveying DC voltage value >=action setting value, i.e.,：V1≥V0, power unit 7 be in off working state,
Power control unit 5 would automatically turn on the charge mode of energy-storage units 6, and the energy for netting electric power supply is transferred in energy-storage units 6；In storage
After energy unit 6 is fully charged, power control unit 5 closes the charge function of energy-storage units 6 automatically；
Step D, when the magnitude of voltage ＜ of DC side acts setting value, i.e.,：V1＜ V0, the power unit 7 of dynamical system 3 is in work
Make state, under the control of power control unit 5, unit 7 is powered by the energy of the electric power supply of net, while monitoring the electricity of DC side
Pressure value；Power control unit 5 would automatically turn on the discharge mode of energy-storage units 6, be simultaneously power by the electric power supply of net and energy-storage units 6
Unit 7 provides electric energy；
Step E, when surveying DC voltage value >=action setting value, i.e.,：V1≥V0, power unit 7 be in off working state,
Power control unit 5 will automatically turn on the charge mode of energy-storage units 6 again, and the energy for netting electric power supply is transferred in energy-storage units 6；
After energy-storage units 6 are fully charged, power control unit 5 closes the charge function of energy-storage units 6 automatically；
Step F, after charging complete, power control unit 5 will turn off the charge function of energy-storage units 6, prepare next work
Circulate.
According to the decentralization of well workover, lifting, shackle job requirements, step B- steps F moves in circles, and makees until completing well workover
Industry, end-of-job.
In above-mentioned control method, the action setting value V of the DC voltage0Determined generally according to DC voltage,
DC voltage is that well site standard power voltage is multiplied by DC voltage coefficient, when well site standard power voltage is 380V, directly
Flowing side voltage coefficient is。
The action setting value V of DC voltage0It can also be determined according to threshold value, threshold value needs to set according to load state scene
It is fixed.
In described control method, step C is the decentralization operation process of workover rig；Step D makees for the lifting of workover rig
Industry process；Shackles and/or decentralization operation process of the step E for workover rig.
When workover rig is started working, power unit driving work operations unit carries out rountrip, power control unit
DC voltage value is monitored in real time, and when detecting magnitude of voltage >=action setting value, well site transformer charges to energy-storage units, when dynamic
When power unit is started working, power control unit stops charging to energy-storage units, and directly drives power by well site transformer
Unit；When DC voltage ＜ acts setting value, power control unit automatically discharges energy-storage units, is worked with adjunctive program
Unit input power, it is ensured that power unit output is stable, and then completes complete raising, a decentralization process.
The present invention utilizes the circulation working characteristics of workover rig, in the non-activity duration of shackle and decentralization（Account for working cycles
2/3rds of cycle）, it is ensured that there is time enough to supplement enough electric energy for energy-storage units；Within the activity duration of raising
（Account for 1/3rd of a dust cycle）, energy-storage units provide electric energy for power unit；Move in circles, meet whole
Workover rig need for electricity during workover treatment.
The preferred embodiments of the present invention are these are only, are not intended to limit the invention, are come for those skilled in the art
Say, the present invention there can be various modifications and variations.Any modification for being made within the spirit and principles of the invention, equally replace
Generation, improvement etc., should be included in the scope of the protection.
Claims (7)
1. a kind of net electric power workover rig energy storage control system, including well site power network, well site transformer, the height of well site power network conveying
Piezoelectricity accesses workover rig after the transformer of well site, it is characterized in that：
The well site power network（1）, well site transformer（2）, dynamical system（3）, work operations unit（4）It is sequentially connected；
The dynamical system（3）Rotary power is provided for net electric power workover rig, on workover rig voluntarily chassis；
The work operations unit（4）The rotary power that dynamical system is exported is changed into straight line and removes power, for completing
The rountrip of net electric power workover rig, by workover rig, voluntarily chassis is carried, and is started working after in-site installation；
The dynamical system（3）Including power control unit（5）, energy-storage units（6）, power unit（7）, wherein：
The power control unit（5）With well site transformer（2）It is connected, well site electric energy is accessed；
The power control unit（5）For controlling energy-storage units（6）And power unit（7）, power unit（7）Drive operation
Working cell（4）Work, so as to complete workover treatment.
2. net electric power workover rig energy storage control system according to claim 1, it is characterized in that：The energy-storage units（6）For
Energy storage components, specific form of energy includes electric energy or hydraulic pressure；Work as dynamical system（3）During for electric drive form, energy-storage units
（6）It is battery and super capacitor；Work as dynamical system（3）During for hydraulic-driven form, energy-storage units（6）It is hydraulic accumulator.
3. the control method of net electric power workover rig energy storage control system described in a kind of claim 1, its step is：
Step A, sets the action setting value V of the DC voltage of net electric power workover rig energy storage control system0；
Step B, by power control unit（5）The DC voltage value V monitored in real time1With action setting value V0It is compared, it is determined that
Power unit（7）It is whether in running order；
Step C, when surveying DC voltage value >=action setting value, i.e.,：V1≥V0, power unit（7）In inoperative shape
State, power control unit（5）It would automatically turn on energy-storage units（6）Charge mode, energy-storage units are transferred to by the energy for netting electric power supply
（6）In；In energy-storage units（6）After fully charged, power control unit（5）It is automatic to close energy-storage units（6）Charge function；
Step D, when DC voltage value ＜ acts setting value, i.e.,：V1＜ V0, dynamical system（3）Power unit（7）It is in
Working condition, in power control unit（5）Under control, unit is powered by the energy of the electric power supply of net（7）, while monitoring direct current
The magnitude of voltage of side；Power control unit（5）It would automatically turn on energy-storage units（6）Discharge mode, by the electric power supply of net and energy-storage units
（6）It is simultaneously power unit（7）Electric energy is provided；
Step E, when surveying DC voltage value >=action setting value, i.e.,：V1≥V0, power unit（7）In inoperative shape
State, power control unit（5）Energy-storage units will be automatically turned on again（6）Charge mode, energy storage is transferred to by the energy for netting electric power supply
Unit（6）In；In energy-storage units（6）After fully charged, power control unit（5）It is automatic to close energy-storage units（6）Charge function；
Step F, after charging complete, power control unit（5）It will turn off energy-storage units（6）Charge function, prepare it is next
Individual working cycles；
According to the decentralization of well workover, lifting, shackle job requirements, step B- steps F moves in circles, until completing workover treatment, work
Work terminates.
4. the control method of net electric power workover rig energy storage control system according to claim 3, it is characterized in that：The direct current
The action setting value V of side voltage0Determined according to DC voltage, DC voltage is that well site standard power voltage is multiplied by DC side
Voltage coefficient.
5. the control method of net electric power workover rig energy storage control system according to claim 4, it is characterized in that：When the well
When field standard power voltage is 380V, DC voltage coefficient is。
6. the control method of net electric power workover rig energy storage control system according to claim 5, it is characterized in that：The power
Unit（7）Working condition refers to that workover rig is in lifting process；The power unit（7）Off working state refers to that workover rig is in
Decentralization either shackle process.
7. the control method of net electric power workover rig energy storage control system according to claim 6, it is characterized in that：The step
C is the decentralization operation process of workover rig；The step D is the lifting operation process of workover rig；The step E unloads for workover rig
Button and/or decentralization operation process.
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| CN201710235871.5A CN106972610B (en) | 2017-04-12 | 2017-04-12 | Energy storage control system and control method for net electric power workover rig |
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|---|---|---|---|
| CN201710235871.5A CN106972610B (en) | 2017-04-12 | 2017-04-12 | Energy storage control system and control method for net electric power workover rig |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11955782B1 (en) | 2022-11-01 | 2024-04-09 | Typhon Technology Solutions (U.S.), Llc | System and method for fracturing of underground formations using electric grid power |
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| US11955782B1 (en) | 2022-11-01 | 2024-04-09 | Typhon Technology Solutions (U.S.), Llc | System and method for fracturing of underground formations using electric grid power |
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