CN111120870B - Centralized continuous oil supply device of fracturing unit - Google Patents
Centralized continuous oil supply device of fracturing unit Download PDFInfo
- Publication number
- CN111120870B CN111120870B CN201911347832.XA CN201911347832A CN111120870B CN 111120870 B CN111120870 B CN 111120870B CN 201911347832 A CN201911347832 A CN 201911347832A CN 111120870 B CN111120870 B CN 111120870B
- Authority
- CN
- China
- Prior art keywords
- oil
- oil supply
- sledge
- manifold
- distribution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention discloses a centralized continuous oil supply device for a fracturing unit. The continuous real-time oil supply in the operation process of the fracturing truck is adopted, and the oil supply amount and the pressure are adjusted through a control system. The centralized continuous oil supply mode is adopted, so that a large-capacity oil tank integrated with the chassis is omitted, the weight of the fracturing truck is reduced, the requirement on the bearing performance of the chassis truck is lowered, and the model selection range of the chassis truck is enlarged; because the chassis of the fracturing truck does not need to be provided with an oil tank in the operation process, the potential safety hazard caused by high-capacity fuel oil is avoided.
Description
Technical Field
The invention belongs to the technical field of oilfield fracturing operation equipment, and relates to a centralized continuous oil supply device of a fracturing unit.
Background
The development scale of unconventional oil gas is continuously increased, the construction working condition is severe day by day, the well site is small, the equipment is more and the space is small, when a general shale gas platform is constructed, nearly 18-20 fracturing trucks are operated simultaneously, the continuous operation time of the fracturing trucks is long, a plurality of blind areas exist in field monitoring, uncontrollable potential safety hazards exist in the operation process of a fracturing unit, and safety accidents such as ignition of the fracturing unit are easily caused; in the operation process, the diesel engine of the fracturing truck bed needs to consume a large amount of fuel, so that the vehicle-mounted oil tank of the chassis has larger volume and the possibility of supporting combustion and expanding fire risks. The weight of a full oil tank of a chassis of the conventional fracturing truck is about 1500kg, the whole weight of the large fracturing truck is limited along with the implementation of the new national standard GB1589-2016, the requirement on the load bearing of the chassis of the fracturing truck is high, and the difficulty is brought to the integrated design of the equipment mounted on the chassis truck.
Disclosure of Invention
The invention aims to provide a centralized continuous oil supply device for a fracturing unit, which solves the problems that in the prior art, uncontrollable potential safety hazards exist in the operation process of the fracturing unit, the fracturing unit is easy to catch fire and other safety accidents, and the integration design of equipment is difficult due to the fact that the weight of a full oil tank on a chassis of a fracturing truck is large.
The centralized continuous oil supply device comprises an oil supply sledge, wherein the oil supply sledge is communicated with a distribution sledge I through an oil conveying pipe I and an oil return pipe I, the distribution sledge I and a distribution sledge II are communicated through an oil conveying pipe II and an oil return pipe II, and the distribution sledge I and the distribution sledge II are respectively communicated with a fracturing truck unit through an oil inlet pipe and an oil return pipe.
The invention is also characterized in that:
the oil supply sledge comprises an oil supply sledge body, an oil tank and an oil injection manifold are fixedly arranged on the oil supply sledge body, and an external diesel tank is injected into the oil tank through the oil injection manifold; the oil supply skid body is also fixedly connected with an oil supply manifold, an oil return manifold, a control system and an air path system, the oil supply manifold is communicated with the oil delivery pipe I and the distribution skid I for supplying oil, the oil return manifold is communicated with the oil return pipe I and the distribution skid I for returning oil, and the air path system is connected to the front end of the oil supply manifold; the control system is respectively connected with the oil tank, the oil injection manifold, the oil supply manifold, the oil return manifold, the gas circuit system, the distribution sledge I and the distribution sledge II.
The oil tank is in a high-low oil tank structure form, the oil injection manifold comprises an oil supply pump driven by a motor, and the outlet of the oil supply pump is sequentially connected with a 50 mu coarse filter, a 20 mu fine filter, an electric ball valve and a stainless steel pipe.
The oil supply manifold comprises an oil supply pump driven by a motor, wherein the outlet of the oil supply pump is sequentially connected with an overflow valve, a stop valve, a check valve, an electric ball valve and a flowmeter, and the oil supply pump comprises a common oil supply pump and a standby oil supply pump.
The oil return manifold comprises an oil return pump driven by a motor, and an outlet of the oil return pump is sequentially connected with a stop valve, a ball valve and a flowmeter.
The air path system consists of an air compressor and a pipeline, and is connected between a ball valve and a flowmeter of the oil supply manifold through a rubber tube and a ball valve.
The control system comprises a display, a PCL controller, a communication module, an oil pressure sensor, a flow sensor, a frequency conversion controller, an input/output module, a circuit breaker, a relay, a UPS power supply device and a memory, the control system has local control and remote wireless control functions, meets on-off control and one-key full-off control of an oil circuit, has one-key oil return control and oil blowing functions, and has the functions of pressure and flow monitoring, fault alarming and diagnosis, data storage and transmission and the like, and the display function of oil tank liquid level, oil supply pressure, flow, motor speed and single-vehicle oil circuit on-off conditions.
The distribution sleds at least comprise a distribution sled I and a distribution sled II; the distribution sledge comprises a distribution sledge body, the lower part of the distribution sledge body is fixedly connected with an oil supply pipe assembly and an oil return pipe assembly, and the upper part of the distribution sledge body is fixedly connected with a manually controlled or electrically controlled rubber pipe reel I and a rubber pipe reel II; one end of the rubber tube reel I is connected with the oil supply pipe assembly, and the other end of the rubber tube reel I is connected with a fuel oil inlet pipe of the fracturing truck; one end of the rubber hose reel II is connected with the oil return pipe assembly, and the other end of the rubber hose reel II is connected with a diesel oil outlet pipe of the fracturing truck; the oil supply pipe assembly is divided into a plurality of branches, and the pressure adjusting devices fixedly connected to each branch are connected with fuel oil inlet pipes on the fracturing truck set.
The pressure adjusting device comprises an electromagnetic switch valve, a throttle valve and a ball valve which are sequentially connected, and the oil inlet pressure of the fracturing truck is adjusted.
And a negative pressure sensor is fixedly arranged at a suction inlet of the oil return pipe assembly, and the rotating speed of a motor in an oil return manifold of the oil supply sledge is automatically adjusted according to the negative pressure of the suction pipe.
The invention has the beneficial effects that: the invention can realize continuous oil supply in the operation process of the fracturing truck, saves a large-capacity oil tank integrated with the chassis, reduces the weight of the fracturing truck, reduces the safety risk of field operation and the requirement on the bearing performance of the chassis, and reduces the difficulty of the integrated design of devices on the chassis; the centralized continuous oil supply device of the fracturing unit not only avoids potential safety hazards caused by large-capacity fuel oil, but also reduces the weight of the whole vehicle and improves the bearing performance of the chassis.
Drawings
FIG. 1 is a schematic structural diagram of a centralized continuous oil supply device of a fracturing unit;
FIG. 2 is a schematic structural diagram of an oil supply skid in the centralized continuous oil supply device of the fracturing unit according to the present invention;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a schematic structural diagram of a distribution skid in a centralized continuous oil supply device of a fracturing unit according to the present invention;
fig. 5 is a left side view of fig. 4.
In the figure, 1, an oil supply sledge, 2, a distribution sledge I, 3, a distribution sledge II, 4, a fracturing truck, 5, an oil delivery pipe I, 6, an oil return pipe I, 7, an oil delivery pipe II, 8, an oil return pipe II, 9, an oil supply sledge body, 10, an oil tank, 11, an oil injection manifold, 12, an oil supply manifold, 13, an oil return manifold, 14, a control system, 15, an air path system, 16, a distribution sledge body, 17, an oil return pipe assembly, 18, reel rubber pipes I, 19, an oil supply pipe assembly, 20, reel rubber pipes II, 21 and a pressure regulating device.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention relates to a centralized continuous oil supply device for a fracturing unit, which is shown in figure 1, wherein an oil supply sledge 1 is installed at a safe position of a well site, a distribution sledge I and a distribution sledge II are arranged side by side with a fracturing truck, the oil supply sledge 1 is communicated with a distribution sledge I2 through an oil conveying pipe I5 and an oil return pipe I6, the distribution sledge I2 is communicated with a distribution sledge II 3 through an oil conveying pipe II 7 and an oil return pipe II 8, and the distribution sledge I2 and the distribution sledge II 3 are respectively communicated with a fracturing truck 4 unit through an oil inlet pipe and an oil return pipe.
As shown in fig. 2 and 3, the oil supply skid 1 comprises an oil supply skid body 9, an oil tank 10 and an oil injection manifold 11 are fixedly arranged on the oil supply skid body 9, and an external diesel tank is injected into the oil tank 10 through the oil injection manifold 11; the oil supply sledge body 9 is also fixedly connected with an oil supply manifold 12, an oil return manifold 13, a control system 14 and an air path system 15, the oil supply manifold 12 is communicated with the oil delivery pipe I5 and the distribution sledge I2 for supplying oil, the oil return manifold 13 is communicated with the oil return pipe I6 and the distribution sledge I2 for returning oil, and the air path system 15 is connected to the front end of the oil supply manifold 12; the control system 14 is respectively connected with the oil tank 10, the oil injection manifold 11, the oil supply manifold 12, the oil return manifold 13, the gas path system 15, the distribution sleds I2 and the distribution sleds II 3.
The oil tank 10 is in a high-low oil tank structure form, the oil injection manifold 11 comprises an oil supply pump driven by a motor, and the outlet of the oil supply pump is sequentially connected with a 50 mu coarse filter, a 20 mu fine filter, an electric ball valve and a stainless steel pipe.
The oil supply manifold 12 comprises an oil supply pump driven by a motor, and the outlet of the oil supply pump is sequentially connected with an overflow valve, a stop valve, a check valve, an electric ball valve and a flowmeter, wherein the oil supply pump comprises a common oil supply pump and a standby oil supply pump, and the set pressure of the overflow valve is 0.5Bar-5 Bar.
The oil return manifold 13 comprises an oil return pump driven by a motor, and an outlet of the oil return pump is sequentially connected with a stop valve, a ball valve and a flowmeter.
The gas circuit system 15 is composed of an air compressor and a pipeline, and the gas circuit system 15 is connected between a ball valve and a flow meter of the oil supply manifold 12 through a rubber tube and a ball valve to finish the evacuation of the residual fuel oil of the pipeline.
The control system 14 comprises a display, a PCL controller, a communication module, an oil pressure sensor, a flow sensor, a frequency conversion controller, an input/output module, a circuit breaker, a relay, a UPS power supply device and a memory, the control system 14 has local control and remote wireless control functions, meets on-off control and one-key full-off control of an oil circuit, has one-key oil return control and oil blowing functions, and has the functions of pressure and flow monitoring, fault alarming and diagnosis, data storage and transmission and the like, and the display function of oil tank liquid level, oil supply pressure, flow, motor speed and on-off conditions of a single-vehicle oil circuit.
As shown in FIGS. 4 and 5, the distribution sleds include at least distribution sleds I2 and II 3; the distribution sledge comprises a distribution sledge body 16, the lower part of the distribution sledge body 16 is fixedly connected with an oil supply pipe assembly 19 and an oil return pipe assembly 17, and the upper part of the distribution sledge body 16 is fixedly connected with a manually controlled or electrically controlled rubber hose reel I18 and a rubber hose reel II 20; one end of the rubber tube reel I18 is connected with the oil supply pipe assembly 19, and the other end of the rubber tube reel I is connected with a fuel oil inlet pipe of the fracturing truck; one end of the rubber hose reel II 20 is connected with the oil return pipe assembly 17, and the other end of the rubber hose reel II is connected with a diesel oil outlet pipe of the fracturing truck; the oil supply pipe assembly 19 is divided into a plurality of branches, and is connected with a fuel oil inlet pipe on the fracturing truck group through a pressure adjusting device 21 fixedly connected on each branch.
The pressure adjusting device 21 comprises an electromagnetic switch valve, a throttle valve and a ball valve which are connected in sequence, and the oil inlet pressure of the fracturing truck is adjusted.
And a suction inlet of the oil return pipe assembly 17 is fixedly provided with a negative pressure sensor, and the rotating speed of a motor in the oil return manifold 13 of the oil supply sledge 1 is automatically adjusted according to the negative pressure of the suction pipe.
The invention relates to a centralized continuous oil supply device for a fracturing unit, which has the following working principle:
as shown in fig. 1 to 5, an oil supply manifold 12 on an oil supply skid 1 sucks diesel oil from an oil tank 10 to supply to an oil supply pipe assembly 19 in a distribution skid i, the oil supply pipe assembly 19 is divided into 12 branches and is supplied to a fuel oil inlet pipe on a fracturing truck group through a pressure regulating device 21, and meanwhile, an oil return pipe assembly 17 is divided into 12 branches and is connected to a fuel oil return pipe of a fracturing truck; meanwhile, an oil supply pipe assembly 19 of the distribution sledge I2 is connected with the distribution sledge II 3 through an oil conveying pipe II 7, an oil return pipe assembly 2 of the distribution sledge I2 is connected with the distribution sledge II 3 through an oil return pipe II 8, and the connection mode of the distribution sledge II 3 and the fracturing truck is the same as that of the distribution sledge I2.
An oil supply manifold 12 in the oil supply sledge 1 is communicated with a distribution sledge I2, the distribution sledge I2 and a distribution sledge II 3 are shunted to the fracturing truck through an oil supply pipe assembly 19, and meanwhile, the pressure of fuel oil entering the fracturing truck can be adjusted through a pressure adjusting device 21 on the distribution sledge I2 and the distribution sledge II 3 so as to meet the requirement of loading a diesel engine on the fracturing truck; meanwhile, a fuel oil return pipe of the fracturing truck set is connected to an oil return pipe assembly 17 on the distribution sledge I2 and the distribution sledge II 3, the fuel oil returns to an oil return manifold 13 on the oil supply sledge 1 through the oil return pipe assembly 17 on the distribution sledge I2, and an oil return pump in the oil return manifold 13 sends return oil into the oil tank 10; the oil tank 10 adopts a high-low oil tank structure, the control system 14 detects the height of the oil level, and an oil supply pump on the oil injection manifold 11 is automatically started to pump oil from the low-level oil tank to the high-level oil tank; the oil supply manifold 12 on the oil supply skid 1 has two oil supply pumps with functions of one use and one standby; the oil supply sledge 1 control system 14 can realize the function of automatically adjusting the oil supply pressure; the pressure adjusting device 21 is arranged on the distribution sledge and can adjust the oil supply pressure; the hose reel I18 and the hose reel II 20 on the distribution sledge can be electrically wound and unwound and rotate or be manually controlled, and have an automatic scaling function; the control system 14 has local control and remote wireless control functions, so that on-off control and one-key full-off control of an oil way as well as one-key oil return control and oil blowing functions are met, and the functions of pressure and flow monitoring, fault alarming and diagnosis, data storage and transmission and the like as well as the display functions of oil tank liquid level, oil supply pressure, flow, motor rotating speed and on-off conditions of a single-vehicle oil way are achieved.
The invention discloses a centralized continuous oil supply device of a fracturing unit, which has the advantages that: the centralized continuous oil supply device for the fracturing unit is used for supplying oil continuously in real time in the operation process of the fracturing truck group, and does not need the transition of a large diesel tank and a small diesel tank of a chassis truck, so that a large-capacity oil tank integrated with the chassis is omitted, the weight of the fracturing truck is reduced, the safety risk of field operation and the requirement on the bearing performance of the chassis truck are reduced, and the integration design difficulty of devices on the chassis truck is reduced; the centralized continuous oil supply device of the fracturing unit not only avoids potential safety hazards caused by large-capacity fuel oil, but also reduces the weight of the whole vehicle and improves the bearing performance of the chassis.
Claims (7)
1. The centralized continuous oil supply device for the fracturing unit is characterized by comprising an oil supply sledge (1), wherein the oil supply sledge (1) is communicated with a distribution sledge I (2) through an oil conveying pipe I (5) and an oil return pipe I (6), the distribution sledge I (2) is communicated with a distribution sledge II (3) through an oil conveying pipe II (7) and an oil return pipe II (8), and the distribution sledge I (2) and the distribution sledge II (3) are communicated with a fracturing truck (4) unit through an oil inlet pipe and an oil return pipe respectively;
the oil supply skid (1) comprises an oil supply skid body (9), an oil tank (10) and an oil injection manifold (11) are fixedly arranged on the oil supply skid body (9), and an external diesel tank is injected into the oil tank (10) through the oil injection manifold (11); the oil supply skid body (9) is further fixedly connected with an oil supply manifold (12), an oil return manifold (13), a control system (14) and an air path system (15), the oil supply manifold (12) is communicated with an oil delivery pipe I (5) and the distribution skid I (2) for oil supply, the oil return manifold (13) is communicated with an oil return pipe I (6) and the distribution skid I (2) for oil return, and the air path system (15) is connected to the front end of the oil supply manifold (12); the control system (14) is respectively connected with the oil tank (10), the oil injection manifold (11), the oil supply manifold (12), the oil return manifold (13), the gas circuit system (15), the distribution sledge I (2) and the distribution sledge II (3);
the oil tank (10) is in a high-low oil tank structure form, the oil injection manifold (11) comprises an oil supply pump driven by a motor, and the outlet of the oil supply pump is sequentially connected with a coarse filter of 50 mu, a fine filter of 20 mu, an electric ball valve and a stainless steel pipe;
the oil supply manifold (12) comprises an oil supply pump driven by a motor, wherein the outlet of the oil supply pump is sequentially connected with an overflow valve, a stop valve, a check valve, an electric ball valve and a flowmeter, and the oil supply pump comprises a common oil supply pump and a standby oil supply pump.
2. The centralized continuous oil supply device of the fracturing unit according to claim 1, wherein the oil return manifold (13) comprises an oil return pump driven by a motor, and an outlet of the oil return pump is sequentially connected with a stop valve, a ball valve and a flowmeter.
3. The centralized continuous oil supply device of the fracturing unit as claimed in claim 1, wherein the gas path system (15) is composed of an air compressor and a pipeline, and the gas path system (15) is connected between the ball valve and the flow meter of the oil supply manifold (12) through a rubber tube and a ball valve.
4. The centralized continuous oil supply device of the fracturing unit according to claim 1, wherein the control system (14) comprises a display, a PCL controller, a communication module, an oil pressure sensor, a flow sensor, a variable frequency controller, an input and output module, a circuit breaker, a relay, a UPS power supply device and a memory, the control system (14) has local control and remote wireless control functions, meets on-off control and one-key full-off control of an oil way, has one-key oil return control and oil blowing functions, and has the functions of pressure and flow monitoring, fault alarm and diagnosis, data storage and transmission, and display of oil tank liquid level, oil supply pressure, flow, motor speed and on-off condition of a single-vehicle oil way.
5. The centralized continuous oil supply device of the fracturing unit according to claim 1, wherein the distribution sledge at least comprises a distribution sledge I (2) and a distribution sledge II (3); the distribution sledge comprises a distribution sledge body (16), the lower part of the distribution sledge body (16) is fixedly connected with an oil supply pipe assembly (19) and an oil return pipe assembly (17), and the upper part of the distribution sledge body (16) is fixedly connected with a manually controlled or electrically controlled rubber hose reel I (18) and a rubber hose reel II (20); one end of the rubber tube reel I (18) is connected to the oil supply pipe assembly (19), and the other end of the rubber tube reel I is connected to a fuel oil inlet pipe of the fracturing truck; one end of the rubber hose reel II (20) is connected to the oil return pipe assembly (17), and the other end of the rubber hose reel II is connected to a diesel oil outlet pipe of the fracturing truck; the oil supply pipe assembly (19) is divided into a plurality of branches, and the pressure adjusting devices (21) fixedly connected on each branch are connected with fuel oil inlet pipes on the fracturing truck set.
6. The centralized continuous oil supply device of the fracturing unit as claimed in claim 5, wherein the pressure adjusting device (21) comprises an electromagnetic switch valve, a throttle valve and a ball valve which are connected in sequence, and the pressure of oil entering the fracturing truck is adjusted.
7. The centralized continuous oil supply device of the fracturing unit according to claim 5, wherein a negative pressure sensor is fixedly installed at a suction inlet of the oil return pipe assembly (17), and the rotation speed of a motor in an oil return manifold (13) of the oil supply sledge (1) is automatically adjusted according to the negative pressure of the suction pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911347832.XA CN111120870B (en) | 2019-12-24 | 2019-12-24 | Centralized continuous oil supply device of fracturing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911347832.XA CN111120870B (en) | 2019-12-24 | 2019-12-24 | Centralized continuous oil supply device of fracturing unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111120870A CN111120870A (en) | 2020-05-08 |
| CN111120870B true CN111120870B (en) | 2022-04-08 |
Family
ID=70501818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911347832.XA Active CN111120870B (en) | 2019-12-24 | 2019-12-24 | Centralized continuous oil supply device of fracturing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111120870B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989687A (en) * | 2015-06-29 | 2015-10-21 | 三一重型能源装备有限公司 | Fracturing pump hydraulic system and fracturing truck |
| CN207451605U (en) * | 2017-10-23 | 2018-06-05 | 中石化四机石油机械有限公司 | Fracturing unit fuel oil concentrates automatic filling device |
| CN209879321U (en) * | 2019-06-21 | 2019-12-31 | 成都伊斯顿过滤器有限公司 | Centralized oil supply device of fracturing unit |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9534604B2 (en) * | 2013-03-14 | 2017-01-03 | Schlumberger Technology Corporation | System and method of controlling manifold fluid flow |
| US10604403B2 (en) * | 2016-03-28 | 2020-03-31 | Gravity Fuel Systems, LLC | Method and apparatus for multi-line fuel delivery |
| CN209276136U (en) * | 2018-12-26 | 2019-08-20 | 天津升华机械设备有限公司 | A kind of well site pressure break Vehicular oil filling sled |
-
2019
- 2019-12-24 CN CN201911347832.XA patent/CN111120870B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989687A (en) * | 2015-06-29 | 2015-10-21 | 三一重型能源装备有限公司 | Fracturing pump hydraulic system and fracturing truck |
| CN207451605U (en) * | 2017-10-23 | 2018-06-05 | 中石化四机石油机械有限公司 | Fracturing unit fuel oil concentrates automatic filling device |
| CN209879321U (en) * | 2019-06-21 | 2019-12-31 | 成都伊斯顿过滤器有限公司 | Centralized oil supply device of fracturing unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111120870A (en) | 2020-05-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA3225087A1 (en) | Combustion-gas supply system and method thereof, device equipped with turbine engine, and fracturing system | |
| CN102284161B (en) | Firefighting extinguishment module and control system | |
| CN201206726Y (en) | LCNG mobile charging stations system | |
| CN104492008A (en) | Injection type positive-negative-pressure foam proportionally mixing system of fire-extinguishing foam tanker | |
| CN201236688Y (en) | Carbon dioxide booster pump injection vehicle | |
| CN113550725B (en) | Electric fracturing operation system | |
| CN211422807U (en) | Multifunctional auxiliary pipeline system for fuel tank of diesel generator car | |
| CN111120870B (en) | Centralized continuous oil supply device of fracturing unit | |
| CN111005825B (en) | Multifunctional auxiliary pipeline system for fuel tank of diesel generating vehicle and control method thereof | |
| CN111794728B (en) | Intelligent interconnection type skid-mounted acid liquid high-pressure injection equipment and control method | |
| CN209879321U (en) | Centralized oil supply device of fracturing unit | |
| CN111237635A (en) | Low-temperature tank car loading and unloading pump skid device | |
| CN106481972A (en) | Gas station and its power set and control method | |
| CN211809278U (en) | Special sewage/sewage vehicle device for airport ground service | |
| CN212338902U (en) | Low-temperature tank car loading and unloading pump skid device | |
| CN204384862U (en) | Tank car unloading system | |
| CN209744059U (en) | Remove and annotate mellow wine car | |
| CN112344156A (en) | Self-propelled pump station | |
| CN204732170U (en) | Portable nuclear emergency water supply installation and water system thereof | |
| CN113027649B (en) | Fuel supply system of double-section crawler-type all-terrain armored vehicle | |
| CN1044515C (en) | All functional storing and filling system for small liquid gas station | |
| CN212262215U (en) | Novel forest fire prevention water supply vehicle | |
| CN215927574U (en) | Fuel oil supply system based on big duct turbofan engine snow sweeper | |
| CN220854182U (en) | Engine oil supply pressure regulating system for test bed | |
| CN209470016U (en) | A kind of low temperature LNG immersed pump sled |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201127 Address after: Baoji City, Shaanxi Province, 721002 Dongfeng Road, Jintai District No. 2 Applicant after: Baoji Oilfield Machinery Co.,Ltd. Applicant after: CHINA NATIONAL PETROLEUM Corp. Applicant after: CNPC national oil and gas drilling equipment Engineering Technology Research Center Co., Ltd Address before: Baoji City, Shaanxi Province, 721002 Dongfeng Road, Jintai District No. 2 Applicant before: Baoji Oilfield Machinery Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |