CN117039858A - Fracturing well site power supply system - Google Patents
Fracturing well site power supply system Download PDFInfo
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- CN117039858A CN117039858A CN202310962999.7A CN202310962999A CN117039858A CN 117039858 A CN117039858 A CN 117039858A CN 202310962999 A CN202310962999 A CN 202310962999A CN 117039858 A CN117039858 A CN 117039858A
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- 238000012544 monitoring process Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 32
- 230000008569 process Effects 0.000 claims description 26
- 230000005611 electricity Effects 0.000 claims description 24
- 238000006073 displacement reaction Methods 0.000 claims description 20
- 238000004146 energy storage Methods 0.000 claims description 10
- 230000009467 reduction Effects 0.000 claims description 9
- 238000005265 energy consumption Methods 0.000 abstract description 13
- 230000004913 activation Effects 0.000 description 15
- 238000010248 power generation Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- VVNXEADCOVSAER-UHFFFAOYSA-N lithium sodium Chemical compound [Li].[Na] VVNXEADCOVSAER-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
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- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/007—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
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- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The application discloses a fracturing well site power supply system which can improve the working efficiency of a fracturing well site and reduce energy consumption while adapting to the working condition of load power fluctuation. The fracturing well site power supply system includes: a plurality of power sources; the power distribution equipment is connected with each power supply at the input end and connected to the fracturing well site operation equipment at the output end, and is used for conveying the electric energy output by the power supply to the fracturing well site operation equipment and monitoring the load state information of the started power supply; the first control module is respectively connected with each power supply, the power distribution equipment and the fracturing well site operation equipment, and is used for determining and starting a first target power supply in the plurality of power supplies based on the total power consumption upper limit of the fracturing well site operation equipment and the power supply upper limit of each power supply before fracturing well site operation, and determining and stopping a second target power supply in the started power supplies based on the load state information of the started power supplies in the fracturing well site operation gap.
Description
The application is a divisional application of a patent application with the application number of CN202111047046.5, the application date of 2021, the application date of 09, and the application name of 'fracturing well site power supply system'.
Technical Field
The application relates to the field of petroleum equipment, in particular to a fracturing well site power supply system.
Background
In the operation processes of oilfield on-site drilling, well cementation, fracturing and yield increase, electric equipment for on-site operation needs power supply, so that a corresponding power supply system is needed. At present, the existing power supply system mainly adopts a single-power high-power generator or a power grid and generator combination mode to supply power, the former can meet the maximum power consumption requirement of a fracturing well site, but the fracturing well site operation is usually intermittent operation, the power consumption requirement of an operation gap is smaller, and in the process, a large amount of fuel still needs to be consumed when the single-power high-power generator is in an idle state, so that the efficiency is low and the economy is poor; the latter can adapt to the working condition of load power fluctuation, but lacks unified allocation, so that the generator is in a standby high-energy-consumption low-output mode, and meanwhile, the difficulty of operation and use is increased.
Therefore, a power supply scheme which can adapt to the operation condition of load power fluctuation, improve the operation efficiency of a fracturing well site and reduce the energy consumption is needed currently.
Disclosure of Invention
The embodiment of the application provides a fracturing well site power supply system which can be used for improving the working efficiency of a fracturing well site and reducing the energy consumption while adapting to the working condition of load power fluctuation.
In order to achieve the above object, the embodiment of the present application adopts the following technical scheme:
the embodiment of the application provides a fracturing well site power supply system, which comprises:
a plurality of power sources;
the power distribution equipment is provided with an input end and an output end, wherein the input ends are respectively connected with each power supply, the output ends are connected to the fracturing well site operation equipment and are used for conveying electric energy output by the power supplies to the fracturing well site operation equipment and monitoring load state information of the started power supplies;
the first control module is respectively connected with each power supply, the power distribution equipment and the fracturing well site operation equipment, and is used for acquiring the total power consumption upper limit of the fracturing well site operation equipment and the power supply upper limit of each power supply before fracturing well site operation, determining and starting a first target power supply in the plurality of power supplies based on the total power consumption upper limit and the power supply upper limit of each power supply, and determining and stopping a second target power supply in the started power supplies based on load state information of the started power supplies in a fracturing well site operation gap.
Optionally, the first control module is specifically configured to:
before fracturing well site operation, a first target power supply of the plurality of power supplies is determined and started based on the upper limit of the power supply amount of each power supply and the corresponding starting priority by taking the sum of the upper limits of the power supply amounts of the started power supplies as a target not smaller than the upper limit of the total power consumption.
Optionally, the load status information includes a load rate and a duration corresponding to the load rate
The first control module is specifically configured to:
determining a power supply with a load rate continuously lower than a first preset load rate and longer than a first preset duration from the started power supplies in a fracturing well site operation gap as a first candidate power supply;
and if the upper limit of the electricity consumption required by the operation clearance of the fracturing well site does not exceed the upper limit of the first residual electricity supply, shutting down the first candidate power supply, wherein the upper limit of the first residual electricity supply is the sum of the upper limits of the electricity supply of the activated power supplies except the first candidate power supply.
Optionally, the power distribution equipment is further used for monitoring the current total power consumption of the fracturing well site operation equipment and the current power supply quantity of the started power supply in the fracturing well site operation process;
the first control module is further configured to:
and in the fracturing well site operation process, when the ratio of the current total power consumption of the fracturing well site operation equipment to the sum of the current power supply amounts of the started power supplies exceeds a first preset ratio, determining and starting the standby power supply in the non-started power supplies based on the upper limit of the power supply amounts of the non-started power supplies in the plurality of power supplies.
Optionally, the first control module is further configured to:
in the fracturing well site operation process, determining a power supply with the load rate continuously lower than a second preset load rate and the duration exceeding a second preset duration from the started power supply as a second candidate power supply;
and if the current total power consumption of the fracturing well site operation equipment does not exceed a second residual power supply upper limit, shutting down the second candidate power supply, wherein the second residual power supply upper limit is the sum of the power supply upper limits of the power supplies except the second candidate power supply in the started power supplies.
Optionally, the first control module is specifically configured to:
and when the number of the second candidate power supplies is multiple, based on the starting priority of each second candidate power supply, sequentially aiming at the single second candidate power supply, and if the current total power consumption of the fracturing well site operation equipment does not exceed the second residual power supply upper limit, shutting down the second candidate power supply.
Optionally, the first control module is further configured to:
and outputting a displacement reduction instruction to the fracturing well site operation equipment based on a ratio when the ratio of the current total power consumption of the fracturing well site operation equipment to the current power supply of the started power supply exceeds a second preset ratio in the fracturing well site operation process, wherein the displacement reduction instruction is used for indicating the fracturing well site operation equipment to reduce the output displacement.
Optionally, the power supply includes:
at least one generator set;
the cabinet is connected with the at least one generator set and the power distribution equipment respectively and used for connecting or disconnecting the at least one generator set and the power distribution equipment;
the second control module is respectively connected with the at least one generator set, the parallel cabinet and the first control module and is used for controlling the at least one generator set to be started or stopped and controlling the parallel cabinet to work under the control of the first control module.
Optionally, the at least one generator set is a gas turbine generator set.
Optionally, the number of the generator sets is at least two, and at least two of the generator sets are different in type.
Optionally, the power source is also a combination of one or more of the following forms: a power grid and/or an energy storage device;
the output end of the power grid is connected with the power distribution equipment, and the energy storage device is connected with other power supplies and the power distribution equipment respectively.
Optionally, the power distribution equipment comprises a switch cabinet and an electric signal collector, wherein the input end of the switch cabinet is connected with each power supply respectively, the output end of the switch cabinet is connected with one end of the electric signal collector, the other end of the electric signal collector is connected with the fracturing well site operation equipment, and the output end of the electric signal collector is connected with the first control module;
the electrical signal collector is used for monitoring the operation parameters of the started power supply and determining the load state information of the started power supply based on the operation parameters of the started power supply;
the switch cabinet is used for switching on or switching off the connection between the power supply and the electric signal collector.
The above at least one technical scheme adopted by the embodiment of the application can achieve the following beneficial effects:
by arranging the power distribution equipment and a plurality of power supplies, and connecting the input end of the power distribution equipment with each power supply and connecting the output end of the power distribution equipment to the fracturing well site operation equipment, the power distribution equipment not only can transmit the electric energy output by each power supply to the fracturing well site operation equipment to provide electric energy for fracturing well site operation, but also can monitor the load state information of the started power supply; the first control module is arranged and is respectively connected with each power supply, the power distribution equipment and the fracturing well site operation equipment, the first control module obtains the total upper limit of the power consumption of the fracturing well site operation equipment and the upper limit of the power supply of each power supply in advance before the fracturing well site operation, and the power supply is started based on the total upper limit of the power consumption of the fracturing well site operation equipment and the upper limit of the power supply of each power supply, so that the high-power electricity demand in the fracturing well site operation process can be met; and in the operation gap of the fracturing well site, the required electricity consumption at the stage is less, and based on the load state information of the started power supplies, part of the power supplies in the started power supplies are shut down, so that the started power supplies can be ensured to operate in a high-efficiency power generation mode while the low-power electricity consumption requirement of the operation gap of the fracturing well site is met, and the standby energy consumption of the power supplies is reduced, thereby reducing the energy consumption of the whole operation gap of the fracturing well site. In addition, adopt a plurality of power for first control module can open and stop corresponding power to different operating modes, satisfies the power consumption demand under the different operating modes, effectively solves the weak problem of fracturing well site basic electric wire netting, and compares in current scheme that adopts single generator, reduces the dependence to single power, when any power goes wrong, still can provide the electric energy in order to satisfy on-the-spot emergency power demand by other power, thereby improves the power consumption security of fracturing well site operation.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic diagram of a power supply system for a fracturing well site according to an exemplary embodiment of the present application;
fig. 2 is a schematic structural diagram of a power distribution device in a power supply system for a fracturing well site according to an exemplary embodiment of the present application;
fig. 3 is a schematic structural diagram of a fracturing well site operation apparatus according to an exemplary embodiment of the present application.
Reference numerals illustrate:
1-power supply, 11-generator set, 12-parallel cabinet, 13-second control module,
2-distribution equipment, 21-switch cabinet, 22-electric signal collector, 23-transformer,
The system comprises a 3-first control module, a 4-power grid and a 5-energy storage device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application may be practiced otherwise than as specifically illustrated or described herein. In addition, in the present specification and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated objects are one or.
The following describes in detail the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.
As shown in fig. 1, a schematic structural diagram of a fracturing well site power supply system according to an exemplary embodiment of the present application is provided, where the fracturing well site power supply system includes a plurality of power sources 1, a power distribution device 2, and a first control module 3.
The power distribution equipment 2 is provided with an input end and an output end, the input end of the power distribution equipment 2 is respectively connected with each power supply 1, and the output end of the power distribution equipment 2 is connected to fracturing well site operation equipment. The first control module 3 is respectively connected with each power supply 1, the power distribution equipment 2 and the fracturing well site operation equipment.
The power supply 1 is used for providing electrical energy. In the fracturing well site power supply system according to the embodiment of the present application, each power supply 1 may have any suitable structure, which is not particularly limited in the embodiment of the present application. In an alternative embodiment, as shown in fig. 1, the power supply 1 may comprise at least one generator set 11, a parallel cabinet 12 and a second control module 13.
Wherein the individual gensets 11 may be of any suitable type, and embodiments of the application are not particularly limited in this regard. Optionally, at least one generator set 11 is a gas turbine generator set. Alternatively, the number of generator sets is at least two, and at least two of the generator sets 11 are of different types.
Alternatively, the single genset 11 may include an internal combustion engine and/or a generator or the like. Specifically, the internal combustion engine may include, for example, but not limited to, a diesel engine, a gas turbine engine, a hydrogen-fuelled engine, etc., the fuel type of which may employ a combination of one or more of the following types: fuel oil, natural gas, hydrogen-containing mixtures, and the like.
And the cabinet 12 is respectively connected with the at least one generator set 11 and the power distribution equipment 2, and can be used for connecting or disconnecting the at least one generator set 11 and the power distribution equipment 2 so as to realize grid connection between the power sources 1.
The second control module 13 is connected to the at least one generator set 11, the cabinet 12 and the first control module 3, and can be used for controlling the at least one generator set 11 to be turned on or turned off and controlling the cabinet 12 to work under the control of the first control module 3.
In practical applications, the second control module 13 may be any suitable device with a control function, which is not limited in particular in the embodiments of the present application. For example, the second control module 13 may include, but is not limited to, an input unit, a communication unit, a processor, a storage unit, a display unit, and the like, where the input unit is configured to receive electric energy output by each of the generator sets 11 in the power supply 1, and the processor may determine, according to the electric energy output by each of the generator sets 11, an operation state (such as whether to enable), an electrical signal parameter (such as a current, a voltage, a frequency, and a power), a required power supply amount, an actual power supply amount, a flow value, and the like of each of the generator sets 11, and start or stop at least one of the generator sets 11 according to a control instruction from the first control module 3, and the display unit is configured to display information about the operation state, the electrical signal parameter, the required power supply amount, the actual power supply amount, the flow value, and the like of each of the generator sets 11, and the communication unit is configured to establish a communication connection with the first control module 3 (such as a dotted line shown in fig. 1), and receive information about the operation state, the electrical signal parameter, the required power supply amount, the actual power supply amount, and the flow value, and the like of each of the generator sets 11, which are fed back to the first control module 3 through the established communication connection.
In practical application, the power supply 1 may be one or more combinations of vehicle-mounted, movable skid-mounted, semi-suspended vehicle-mounted, and the like, which is not particularly limited in the embodiment of the present application.
It can be understood that, in the power supply 1 of the foregoing embodiment, by adopting at least one generator set 11, the parallel cabinet 12 and the second control module 13, the parallel cabinet 12 is respectively connected with the at least one generator set 11 and the power distribution device 2, and the second control module 13 is respectively connected with the at least one generator set 11, the parallel cabinet 12 and the first control module 3, so that not only can the first control module 3 more flexibly control the parallel operation between the power supplies 1, but also the first control module 3 can perform start-stop control on each generator set 11 in a single power supply 1, thereby more flexibly adjusting the power supply capability of the single power supply 1.
In the fracturing well site power supply system according to the embodiment of the present application, the power distribution device 2 may have any suitable structure, and the embodiment of the present application is not limited thereto in particular. In an alternative embodiment, as shown in fig. 2, the power distribution device 2 may include a switch cabinet 21 and an electrical signal collector 22, where input ends of the switch cabinet 21 are connected to the respective power sources 1, output ends of the switch cabinet 21 are connected to one end of the electrical signal collector 22, the other end of the electrical signal collector 22 is connected to the fracturing well site operation device, and output ends of the electrical signal collector 22 are connected to the first control module 3.
The electrical signal collector 22 may be used to monitor the operational parameters of the activated power source 1 and determine load status information of the activated power source 1 based on the operational parameters of the activated power source 1. The operation parameters of the power supply 1 may include, for example, but not limited to, parameters such as current, voltage, frequency, and power, and the load status information of the power supply 1 is used to represent a load status of the power supply device, and may include, for example, but not limited to, a load rate and a duration corresponding to the load rate. Alternatively, the electrical signal collector 22 may include, for example, but not limited to, a current transformer, a voltage transformer, and the like. Of course, in other alternatives, the electrical signal collector 22 may also employ various components with operation parameter monitoring functions known to those skilled in the art, which are not particularly limited in this embodiment of the present application.
The switch cabinet 21 is used to turn on or off the connection between the power supply 1 and the electrical signal collector 22. Alternatively, the switch cabinet 21 may include switches or the like in one-to-one correspondence with the plurality of power sources 1. Of course, those skilled in the art will understand that the switch cabinet 21 may further include more components according to actual needs, which is not specifically limited in the embodiment of the present application.
It can be understood that by adding the electric signal collector 22 in the power distribution equipment 2, the power distribution equipment 2 has the function of monitoring the respective operation parameters of the power supply 1 and the fracturing well site operation equipment, and provides powerful data support for the power supply control in the fracturing well site operation process and the operation gap; by adding the switch cabinet 21 in the power distribution equipment 2, the grid connection between the power supplies 1 can be controlled more conveniently and flexibly.
In another alternative embodiment, as shown in fig. 2, the power distribution device 2 may further include a transformer 23, where an input end of the transformer 23 is connected to each power source 1, and an output end of the transformer 23 is connected to the fracturing well site operation device, so that electric energy output by each power source 1 may be converted into a voltage suitable for the fracturing well site operation device, so as to ensure that the fracturing well site operation device can work normally.
Of course, those skilled in the art will understand that the power distribution apparatus 2 may further include more devices required in the grid connection and power distribution process according to actual needs, and the embodiment of the present application is not limited thereto.
In the fracturing well site power supply system of the embodiment of the present application, the first control module 3 may be any suitable device with a control function, which is not specifically limited in the embodiment of the present application. For example, the first control module 3 may include, but is not limited to, an input unit, a communication unit, a processor, a storage unit, a display unit, etc., and functions of each portion are similar to those of the corresponding portion in the second control module 13, which is not described herein.
In the embodiment of the present application, the fracturing well site operation equipment refers to various devices required in the fracturing well site operation process, and as shown in fig. 3, for example, the fracturing well site operation equipment may include, but is not limited to: frequency converter equipment, electrically-driven fracturing equipment, high-pressure manifold equipment, instrument equipment, liquid supply and distribution equipment, liquid tanks, sand mixing equipment, sand storage and sand adding equipment and the like. In practical application, the first control module 3 can be deployed in the instrument equipment to play a role in saving space occupied by the fracturing well site power supply system and the like.
In order to reduce the dependence on a single power supply, when any power supply has a problem, the other power supplies 1 can still provide electric energy to meet the field emergency power requirement, so as to improve the power safety of the operation of the fracturing well site, and in another embodiment, the power supply in the operation equipment of the fracturing well site can be one or more of the following forms: the power grid 4 and/or the energy storage device 5, wherein the output end of the power grid 4 is connected with the power distribution equipment 2, and the energy storage device 5 is respectively connected with other power sources 1 and the power distribution equipment 2.
The energy storage device 5 may have any suitable structure, and embodiments of the present application are not particularly limited thereto. In an alternative embodiment, the energy storage device 5 may include, for example, but is not limited to, at least one of the following energy storage components: sodium lithium batteries, lithium ion batteries, supercapacitors, hydrogen fuel cells, and the like.
Based on the structure of the fracturing well site power supply system, the fracturing well site power supply system of the embodiment of the application is described in detail below in connection with the operation process of the fracturing well site.
In particular, the power distribution device 2 may be used to deliver power output by the power source 1 to fracturing wellsite equipment and to monitor load status information of the activated power source 1. The first control module 3 may be configured to obtain an upper limit of a total power consumption of the fracturing well site operation apparatus and an upper limit of a power supply amount of each power supply 1 before fracturing well site operation, determine and activate a first target power supply of the plurality of power supplies 1 based on the upper limit of the total power consumption of the fracturing well site operation apparatus and the upper limit of the power supply amount of each power supply 1, and determine and deactivate a second target power supply of the activated power supplies 1 based on load state information of the activated power supplies 1 at the fracturing well site operation gap.
The upper limit of the total electricity consumption of the fracturing well site operation equipment is used for representing the maximum consumption requirement of the fracturing well site operation equipment. Alternatively, the upper limit of the total electricity consumption of the fracturing well site operation equipment can be manually input to the first control module 3 by an operator according to the actual operation condition, or the first control module 3 can determine the upper limit of the total electricity consumption of the fracturing well site operation equipment according to the target total displacement information and the target upper limit of the output pressure of the fracturing well site operation. It should be noted that, the manner of determining the total power consumption according to the target total displacement information and the target output pressure of the fracturing well site operation may be determined in various manners known to those skilled in the art, which is not particularly limited in the embodiment of the present application.
The upper limit of the supply power of the power supply 1 is used to characterize the maximum supply power of the power supply 1. Alternatively, for a single power source 1, the upper limit of the power supply amount of the power source 1 may be manually input into the first control module 3 according to the actual situation of the power source 1 by the operation, or the first control module 3 may determine the upper limit of the power supply amount of the power source 1 according to parameters such as the type and the power generation amount of the power source 1, and various technical means known to those skilled in the art may be adopted for the specific determination manner.
When the method is implemented, before fracturing well site operation, if the upper limit of the total electricity consumption of the fracturing well site operation equipment is larger, the first control module 3 can start more power supplies 1 according to the upper limit of the electricity consumption of each power supply 1 so as to meet the high-power electricity consumption requirement in the fracturing well site operation process; otherwise, if the upper limit of the total electricity consumption of the fracturing well site operation equipment is smaller, the first control module 3 can start fewer power supplies 1 according to the upper limit of the electricity consumption of each power supply 1 so as to adapt to the low-power electricity consumption working condition of the fracturing well site operation and reduce the energy consumption.
To further reduce energy consumption while meeting the high power electricity demand of the fracturing wellsite operations, more specifically, in an alternative embodiment, the first control module 3 is specifically configured to determine and activate a first target power source of the plurality of power sources 1 before the fracturing wellsite operations, with the sum of the upper power supply limits of the activated power sources 1 not less than the total upper power consumption limit of the fracturing wellsite operation equipment, based on the upper power supply limits of the respective power sources 1 and the corresponding activation priorities. Wherein for a single power supply 1, the corresponding activation priority of the power supply 1 is used to characterize the activation sequence of the power supplies 1, e.g. the corresponding higher activation priority power supply 1 is activated before the corresponding lower activation priority power supply 1. In practical applications, the activation priority corresponding to the power source 1 may be preset by an operator according to actual needs, which is not limited in the embodiment of the present application, for example, the activation priority corresponding to the power source 1 with low emission and high economical efficiency may be set to a higher level, so that the power source 1 is preferentially activated.
For example, the first control module 3 may first take the power source 1 with the highest corresponding enabling priority as the first target device according to the enabling priority corresponding to each power source 1, and if the sum of the upper limits of the power supply amounts of all the first target power sources determined currently is still smaller than the upper limit of the total power consumption of the fracturing well site operation device, continue to select the power source 1 with the highest enabling priority as the first target device, and so on until the sum of the upper limits of the power supply amounts of all the first target power sources determined currently is not smaller than the upper limit of the total power consumption of the fracturing well site operation device. Thus, the first control module 3 can determine the first target power supply of the plurality of power supplies 1.
In the operation gap of the fracturing well site, the first control module 3 can shut down the power supply 1 which is continuously in a low-load state according to the load state information of each started power supply 1 because the required electric power is smaller, so that the started power supplies 1 are ensured to operate in a high-efficiency power generation mode, and particularly the standby power consumption of the power supplies 1 is reduced, and the effect of reducing the energy consumption is achieved.
To further ensure that the activated power supplies 1 are all operated in an efficient and economical manner while meeting the power requirements of the fracturing wellsite operation gap to further reduce the power consumption of the fracturing wellsite operation gap, more specifically, in an alternative embodiment, the first control module 3 may be configured to determine, from the activated power supplies 1, as the first candidate power supplies, power supplies 1 having a load rate that continues to be lower than the first preset load rate for a period of time exceeding the first preset period of time at the fracturing wellsite operation gap, and to shut down the first candidate power supplies if the upper limit of the power consumption required for the fracturing wellsite operation gap does not exceed the upper limit of the first remaining power supply, wherein the upper limit of the first remaining power supply is the sum of the power supplies 1 other than the first candidate power supply among the activated power supplies 1.
It should be noted that, if the number of the first candidate power sources is plural, the first control module 3 may sequentially target the single first candidate power source according to the corresponding activation priority of each first candidate power source, for example, in order of from low activation priority to high activation priority, and if the upper limit of the power consumption required for fracturing the working gap of the well site does not exceed the sum of the upper limits of the power supply amounts of the other activated power sources except the first candidate power source (i.e., the upper limit of the first residual power supply amount), the first candidate power source is turned off.
In addition, the first preset load rate and the first preset duration can be set according to actual operation needs, for example, the first preset load rate can be set to 20%, and specific values of the first preset load rate and the first preset duration are not limited in the embodiment of the application.
In the fracturing well site power supply system provided by the embodiment of the application, by arranging the power distribution equipment 2 and the plurality of power supplies 1, and connecting the input end of the power distribution equipment 2 with each power supply 1 and the output end of the power distribution equipment 2 to the fracturing well site operation equipment respectively, the power distribution equipment 2 not only can transmit the electric energy output by each power supply 1 to the fracturing well site operation equipment to supply electric energy for fracturing well site operation, but also can monitor the load state information of the started power supply 1; the first control module 3 is arranged and is respectively connected with each power supply 1, the power distribution equipment 2 and the fracturing well site operation equipment, the first control module 3 obtains the total upper limit of the power consumption of the fracturing well site operation equipment and the upper limit of the power supply quantity of each power supply 1 in advance before the fracturing well site operation, and the power supply 1 is started based on the total upper limit of the power consumption of the fracturing well site operation equipment and the upper limit of the power supply quantity of each power supply 1, so that the high-power consumption requirement in the fracturing well site operation process can be met; and in the operation gap of the fracturing well site, the required electricity consumption at the stage is less, and based on the load state information of the started power supplies 1, part of the power supplies 1 in the started power supplies 1 are turned off, so that the started power supplies 1 can be ensured to operate in a high-efficiency power generation mode while the low-power electricity consumption requirement of the operation gap of the fracturing well site is met, and the standby energy consumption of the power supplies 1 is reduced, thereby reducing the energy consumption of the whole operation gap of the fracturing well site. In addition, adopt a plurality of power 1 for first control module 3 can start and stop corresponding power 1 to different operating modes, satisfies the power consumption demand under the different operating modes, effectively solves the weak problem of fracturing well site basic electric wire netting 4, and compares in current scheme that adopts single generator, reduces the dependence to single power, when any power goes wrong, still can provide the electric energy in order to satisfy on-the-spot emergency power demand by other power 1, thereby improves the power consumption security of fracturing well site operation.
In order to better meet the power requirements during the operation of the fracturing wellsite, the power distribution device 2 may also be used to monitor the current total power consumption of the fracturing wellsite operation device and the current power supply of the activated power supply 1 during the operation of the fracturing wellsite, in another embodiment, taking into account that the actual power consumption of the fracturing wellsite operation device is changing in real time during the operation of the fracturing wellsite. The first control module 3 may be further configured to determine and activate a standby power supply in the inactive power supplies 1 based on an upper limit of the power supply amounts of the inactive power supplies 1 in the plurality of power supplies 1 when a ratio of a current total power consumption of the fracturing well site operation equipment to a current power supply amount of the active power supplies 1 exceeds a first preset ratio during the fracturing well site operation.
It should be noted that, the first preset ratio may be set according to actual operation requirements, for example, the first preset ratio may be set to 80%, and specific values of the first preset ratio are not limited in the embodiment of the present application.
For the total power consumption of the fracturing well site operation equipment and the power supply amount of the power supply 1, in an alternative embodiment, the power distribution equipment 2 can monitor parameters such as voltage, current, frequency and power of the fracturing well site operation equipment through a built-in electric signal collector 22 (such as a current transformer, a voltage transformer and other sensors) and determine the current power consumption of the fracturing well site operation equipment according to the monitored parameters. Similarly, the power distribution device 2 may also monitor parameters such as voltage, current, frequency and power output by each of the activated power sources 1 through the built-in electric signal collector 22, and determine the current power supply amount of each of the activated power sources 1 according to the monitored parameters.
Of course, those skilled in the art will understand that various other ways known to those skilled in the art may be used to monitor the current total power consumption of the fracturing well site operation apparatus and the current power supply of the power source 1, and the embodiment of the present application is not limited thereto in particular.
For the determination and starting of the standby power supply, in an alternative embodiment, the first control module 3 may select, from the power supplies 1 that are not activated, the power supply 1 whose upper limit of the power supply amount matches with a ratio difference value, where the ratio difference value is a difference value between a ratio of the sum of the current power supply amounts of the activated power supplies 1 and a first preset ratio. For example, the corresponding required power consumption may be determined according to the preset correspondence between the ratio difference and the required power consumption, and then the power source 1 with the upper limit of the power supply amount not smaller than the required power consumption is selected from the power sources 1 that are not activated as the standby power source.
In another alternative embodiment, the first control module 3 may also select, from the non-activated power supplies 1, one or more power supply 1 groups with higher activation priorities as standby power supplies according to the activation priorities corresponding to the non-activated power supplies 1.
Of course, it should be understood by those skilled in the art that, in addition to the above embodiment, the standby power supply in the inactive power supply 1 may be determined and started in various ways known to those skilled in the art, and the embodiment of the present application is not limited in particular.
It will be appreciated that in the above embodiment, during the operation of the fracturing well site, the upper limit of the current total power consumption of the fracturing well site operation equipment and the current power supply of the activated power supply 1 is monitored by the power distribution equipment 2, and when the ratio of the current total power consumption of the fracturing well site operation equipment to the sum of the current power supply of the activated power supply 1 exceeds a certain value, the first control module 3 determines and activates the standby power supply, so that the situation that enough electric energy is provided for the fracturing well site operation equipment when the current total power consumption of the fracturing well site operation equipment is too high can be ensured, and the influence of insufficient power supply on the normal implementation of the fracturing well site operation is avoided.
To ensure that each of the activated power supplies 1 is operated in a high efficiency power generation mode while meeting the power demand during operation of the fracturing wellsite to reduce energy consumption during the process, in another embodiment, the first control module 3 is further operable to determine, from among the activated power supplies 1, a power supply 1 having a load rate that continues to be lower than a second preset load rate for a period of time exceeding a second preset period of time as a second candidate power supply during operation of the fracturing wellsite, to shut down the second candidate power supply if the current total power consumption of the fracturing wellsite operation equipment does not exceed a second upper remaining power supply limit, wherein the second upper remaining power supply limit is the sum of the upper power supply limits of the power supplies 1 in the activated power supplies 1 other than the second candidate power supply.
In implementation, if the number of the second candidate power sources is multiple, the first control module 3 may sequentially target the single second candidate power sources based on the activation priority of each second candidate power source, for example, in the order of from low activation priority to high activation priority, and if the current total power consumption of the fracturing well site operation equipment does not exceed the sum of the upper limits of the power supply amounts of the rest of the activated power sources 1 except the second candidate power source (i.e., the upper limit of the second rest of the power supply amounts), the second candidate power source is turned off.
It should be noted that the second preset load rate and the second preset duration may be set according to actual needs, for example, the second preset load rate may be set to 20%, and specific values of the second preset load rate and the second preset duration are not limited in the embodiment of the present application.
It can be appreciated that by the fracturing well site power supply system of the embodiment, the power supply 1 which is continuously in a low-load state in the fracturing well site operation process can be turned off while the power demand in the fracturing well site operation process is met, so that the started power supply 1 can be ensured to be in a high-efficiency power generation mode, and the effect of reducing the energy consumption in the fracturing well site operation process is achieved.
In order to ensure the stability of the whole fracturing well site power supply system and improve the safety of the fracturing well site operation process, in another embodiment, the first control module 3 is further used for outputting a displacement reduction instruction to the fracturing well site operation device based on a ratio of the current total power consumption of the fracturing well site operation device to the current power supply of the started power supply 1 when the ratio exceeds a second preset ratio in the fracturing well site operation process, wherein the displacement reduction instruction is used for instructing the fracturing well site operation device to reduce the output displacement.
Because the higher the output displacement of the fracturing well site operation equipment is, the higher the total electricity consumption of the fracturing well site operation equipment is, based on the fact, in an alternative embodiment, the corresponding relation between the specific value and the output displacement of the fracturing well site operation equipment can be preset, a specific value of the output displacement to be reduced is determined based on the corresponding relation and the currently determined specific value, and then a corresponding displacement reduction instruction is generated based on the specific value and sent to the fracturing well site operation equipment so as to control the fracturing well site operation equipment to reduce the output displacement of the corresponding value.
Of course, in practical application, the number of the fracturing well site operation apparatuses may be multiple, such as the fracturing apparatus 1, the fracturing apparatus 2, the sand mixing apparatus, and the mixing apparatus shown in fig. 1, where in this case, the first control module 3 may output corresponding displacement reduction instructions to each fracturing well site operation apparatus, and each fracturing well site operation apparatus reduces its own displacement according to the received displacement reduction instructions.
It should be noted that the second preset ratio may be set according to actual needs, for example, the second preset ratio may be set to an appropriate value greater than the first preset ratio, which is not limited by the specific numerical value of the second preset ratio in the embodiment of the present application.
It may be understood that in the fracturing well site power supply system of the foregoing embodiment, when the ratio of the current total power consumption of the fracturing well site operation equipment to the sum of the current power supply amounts of the activated power supplies 1 exceeds a certain value, the first control module 3 controls the fracturing well site operation equipment to reduce the output displacement of the first control module, so that the total power consumption of the fracturing well site operation equipment can be reduced, and the problem that the stability of the whole fracturing well site power supply system is affected due to the fact that the total power consumption of the fracturing well site operation equipment is too high is avoided.
The foregoing describes specific embodiments of the present disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
In summary, the foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
The system, apparatus, module or unit set forth in the above embodiments may be implemented in particular by a computer chip or entity, or by a product having a certain function. One typical implementation is a computer.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, as relevant to see a section of the description of method embodiments.
Claims (13)
1. A frac wellsite power supply system, comprising:
a plurality of power sources;
the power distribution equipment is provided with an input end and an output end, wherein the input ends are respectively connected with each power supply, the output ends are connected to the fracturing well site operation equipment and are used for conveying electric energy output by the power supplies to the fracturing well site operation equipment and monitoring load state information of the started power supplies;
and the first control module is respectively connected with each power supply, the power distribution equipment and the fracturing well site operation equipment and is used for determining and shutting down a second target power supply in the started power supplies based on the load state information of the started power supplies in the fracturing well site operation clearance.
2. The fracturing wellsite power supply system of claim 1, wherein the load status information comprises a load rate and a duration corresponding to the load rate;
the first control module is specifically configured to:
determining a power supply with a load rate continuously lower than a first preset load rate and longer than a first preset duration from the started power supplies in a fracturing well site operation gap as a first candidate power supply;
and if the upper limit of the electricity consumption required by the operation clearance of the fracturing well site does not exceed the upper limit of the first residual electricity supply, shutting down the first candidate power supply, wherein the upper limit of the first residual electricity supply is the sum of the upper limits of the electricity supply of the activated power supplies except the first candidate power supply.
3. The fracturing wellsite power supply system of claim 1, wherein the first control module is further configured to obtain an upper total power usage limit of the fracturing wellsite operation equipment and an upper power supply limit of each power supply prior to fracturing wellsite operation, and determine and activate a first target power supply of the plurality of power supplies based on the upper total power usage limit and the upper power supply limit of each power supply.
4. The fracturing wellsite power supply system of claim 3, wherein the first control module is specifically configured to:
before fracturing well site operation, a first target power supply of the plurality of power supplies is determined and started based on the upper limit of the power supply amount of each power supply and the corresponding starting priority by taking the sum of the upper limits of the power supply amounts of the started power supplies as a target not smaller than the upper limit of the total power consumption.
5. The fracturing wellsite power supply system of claim 1, wherein the power distribution apparatus is further configured to monitor a current total power usage of the fracturing wellsite operational apparatus and a current power usage of an activated power source during fracturing wellsite operations;
the first control module is further configured to determine and start a standby power supply in the unactivated power supply based on an upper limit of power supply amounts of the unactivated power supplies in the plurality of power supplies when a ratio of a current total power consumption of the fracturing well site operation device to a sum of current power supply amounts of the activated power supplies exceeds a first preset ratio in a fracturing well site operation process.
6. The fracturing wellsite power supply system of claim 5, wherein the first control module is further configured to:
in the fracturing well site operation process, determining a power supply with the load rate continuously lower than a second preset load rate and the duration exceeding a second preset duration from the started power supply as a second candidate power supply;
and if the current total power consumption of the fracturing well site operation equipment does not exceed a second residual power supply upper limit, shutting down the second candidate power supply, wherein the second residual power supply upper limit is the sum of the power supply upper limits of the power supplies except the second candidate power supply in the started power supplies.
7. The fracturing wellsite power supply system of claim 6, wherein the first control module is specifically configured to:
and when the number of the second candidate power supplies is multiple, based on the starting priority of each second candidate power supply, sequentially aiming at the single second candidate power supply, and if the current total power consumption of the fracturing well site operation equipment does not exceed the second residual power supply upper limit, shutting down the second candidate power supply.
8. The fracturing wellsite power supply system of claim 5, wherein the first control module is further configured to:
and outputting a displacement reduction instruction to the fracturing well site operation equipment based on a ratio when the ratio of the current total power consumption of the fracturing well site operation equipment to the current power supply of the started power supply exceeds a second preset ratio in the fracturing well site operation process, wherein the displacement reduction instruction is used for indicating the fracturing well site operation equipment to reduce the output displacement.
9. The fracturing wellsite power supply system of claim 1, wherein the power source comprises:
at least one generator set;
the cabinet is connected with the at least one generator set and the power distribution equipment respectively and used for connecting or disconnecting the at least one generator set and the power distribution equipment;
the second control module is respectively connected with the at least one generator set, the parallel cabinet and the first control module and is used for controlling the at least one generator set to be started or stopped and controlling the parallel cabinet to work under the control of the first control module.
10. The fracturing wellsite power supply system of claim 9, wherein the at least one generator set is a gas turbine generator set.
11. The fracturing wellsite power supply system of claim 9, wherein the number of generator sets is at least two, at least two of the generator sets being of different types.
12. The fracturing wellsite power supply system of claim 9, wherein the power source is further a combination of one or more of the following forms: a power grid and/or an energy storage device;
the output end of the power grid is connected with the power distribution equipment, and the energy storage device is connected with other power supplies and the power distribution equipment respectively.
13. The fracturing wellsite power supply system of any of claims 1-12, wherein the power distribution equipment comprises a switch cabinet and an electrical signal collector, the input end of the switch cabinet is connected with each power supply, the output end of the switch cabinet is connected with one end of the electrical signal collector, the other end of the electrical signal collector is connected with the fracturing wellsite operation equipment, and the output end of the electrical signal collector is connected with the first control module;
the electrical signal collector is used for monitoring the operation parameters of the started power supply and determining the load state information of the started power supply based on the operation parameters of the started power supply;
the switch cabinet is used for switching on or switching off the connection between the power supply and the electric signal collector.
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| CN117371673A (en) * | 2022-06-28 | 2024-01-09 | 烟台杰瑞石油装备技术有限公司 | Comprehensive energy management method and system, well site based on method and well site control method |
| 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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| JP2017500462A (en) * | 2013-10-10 | 2017-01-05 | プロスティム ラブス, エルエルシーProstim Labs, Llc | Well breaking system and method |
| WO2019152981A1 (en) * | 2018-02-05 | 2019-08-08 | U.S. Well Services, Inc. | Microgrid electrical load management |
| CN111124965B (en) * | 2019-12-24 | 2021-10-29 | 三一石油智能装备有限公司 | Distributed bus control method and device and hydraulic fracturing truck |
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