CN111188763A - High-low pressure lubricating system for high-power plunger pump - Google Patents
High-low pressure lubricating system for high-power plunger pump Download PDFInfo
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- CN111188763A CN111188763A CN202010170129.2A CN202010170129A CN111188763A CN 111188763 A CN111188763 A CN 111188763A CN 202010170129 A CN202010170129 A CN 202010170129A CN 111188763 A CN111188763 A CN 111188763A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/18—Lubricating
Abstract
The invention discloses a high-low pressure lubricating system for a high-power plunger pump, which comprises a high-pressure oil path and a low-pressure oil path, wherein the high-pressure oil path is used for lubricating a connecting rod bearing bush and a crosshead bearing bush in the plunger pump, and the low-pressure oil path is used for lubricating a crankshaft bearing, a crosshead slide rail, a reduction gearbox bearing and a reduction gearbox gear pair in the plunger pump. Has the advantages that: the oil inlet is divided into a high-pressure oil path and a low-pressure oil path, the high-pressure oil path is used for lubricating a connecting rod bearing bush and a crosshead bearing bush, and the low-pressure oil path is used for lubricating a crankshaft bearing, a crosshead slide rail, a reduction gearbox bearing and a reduction gearbox gear pair; the two oil pumps supply oil, so that the oil supply amount of each oil way can be better ensured, the lubricating oil can be better distributed, the problems of uneven distribution of the lubricating oil and insufficient lubricating oil amount of each lubricating point due to excessive lubricating branches are avoided, the utilization rate of the lubricating oil is improved, and the abnormity is reduced; the high-pressure oil circuit and the low-pressure oil circuit both use two-stage filtration, so that impurities in lubricating oil can be reduced, and the service life of each part of the plunger pump is prolonged.
Description
Technical Field
The invention relates to the technical field of lubrication of plunger pumps, in particular to a high-pressure and low-pressure lubrication system for a high-power plunger pump.
Background
Along with the further development of unconventional oil gas and shale oil gas, the operation working condition of fracturing operation is more and more complicated, and the requirement on fracturing equipment, particularly a plunger pump, is higher and higher. Particularly, unconventional oil and gas operation, namely shale gas fracturing operation, requires high-power, high-pressure and long-time continuous operation of the plunger pump, which provides challenges for the service life of each moving mechanism of the plunger pump. The lubricating system is one of the important components of the plunger pump, not only can lubricate the surfaces of all moving parts and reduce friction resistance and abrasion, but also can cool the parts and take away heat generated by friction, and can clean the friction surfaces and take away impurities. The good lubricating effect can greatly prolong the service life of the plunger pump. The lubricating mode of traditional plunger pump is oil feed all the way usually, distribute through the lubricating oil that gets into the main oil circuit and lubricate each part spare part of plunger pump, including the axle bush, the bearing, gears and so on, the problem that this kind of lubricating mode exists is, lubricating oil circuit branch is many, lubricating oil distribution is difficult to control, the lubricating oil volume that is difficult to guarantee key parts needs satisfies the demand on the one hand, do not cause the waste of lubricating oil allotment to the part that does not need excessive lubrication simultaneously, especially to high-power plunger pump, the lubricating oil volume that its needs is many, the lubrication requirement of main bearing position is high, the uneven whole lubricated effect that can greatly reduced of lubricating oil distribution.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a high-low pressure lubricating system for a high-power plunger pump, wherein a traditional lubricating 'one-way oil inlet' mode is changed, two ways of oil inlets are respectively formed in a high-pressure oil way and a low-pressure oil way, the high-pressure oil way is mainly used for lubricating a connecting rod bearing bush and a crosshead bearing bush which have higher lubricating requirements, and the low-pressure oil way is mainly used for lubricating a crankshaft bearing, a crosshead slide rail, a reduction gearbox bearing and a reduction gearbox gear pair which have lower lubricating requirements in comparison; the two oil pumps supply oil, so that the oil supply amount of each oil way can be better ensured, the lubricating oil can be better distributed, the problems of uneven distribution of the lubricating oil and insufficient lubricating oil amount of each lubricating point due to excessive lubricating branches are avoided, the utilization rate of the lubricating oil is improved, and the abnormity is reduced; the high-pressure oil circuit and the low-pressure oil circuit both use two-stage filtration, so that impurities in lubricating oil can be reduced, and the service life of each part of the plunger pump is prolonged. The overflow valve, the pressure sensor and the temperature sensor are used for protecting the whole lubricating system.
The aim of the invention is achieved by the following technical measures: the high-low pressure lubricating system for the high-power plunger pump comprises a high-pressure oil way and a low-pressure oil way, wherein the high-pressure oil way is used for lubricating a connecting rod bearing bush and a crosshead bearing bush in the plunger pump, and the low-pressure oil way is used for lubricating a crankshaft bearing, a crosshead slide rail, a reduction gearbox bearing and a reduction gearbox gear pair in the plunger pump.
Further, the lubricating oil quantity of the high-pressure and low-pressure lubricating system is 150-200L/min.
Further, the rated lubricating oil pressure of the high-pressure oil way is 200-350 PSI.
Furthermore, the rated lubricating oil pressure of the high-pressure oil way is 60-150 PSI.
Furthermore, the oil inlet of the low-pressure oil way is respectively provided with independent lubricating oil ways for a reduction gearbox bearing and a reduction gearbox gear pair.
Further, a high-low pressure lubricating system for high-power plunger pump includes the oil tank, and the high pressure advances oil pipe, and the low pressure advances oil pipe, and the high pressure returns oil pipe, the low pressure returns oil pipe, the oil-out of oil tank advances oil pipe through the high pressure and is connected with the high-pressure oil circuit oil inlet of plunger pump, the oil-out of oil tank advances oil pipe through the low pressure and is connected with the low pressure oil circuit oil inlet of plunger pump, the high pressure oil circuit oil-out of plunger pump returns oil pipe through the high pressure and inserts the oil tank, the low pressure oil circuit oil-out of plunger pump returns oil pipe through the low pressure and inserts the oil tank, and the high pressure advances oil.
Furthermore, a high-pressure oil suction filter, a high-pressure oil pump, a high-pressure overflow valve, a high-pressure cooler, a high-pressure sensor and a high-pressure temperature sensor are sequentially arranged on the high-pressure oil inlet pipe along the flow direction of the oil path.
Further, the filtering precision of the high-pressure oil absorption filter is 40-50 microns.
And a high-pressure oil inlet filter is arranged between the high-pressure overflow valve and the high-pressure cooler.
Further, the filtering precision of the high-pressure oil inlet filter is 10-25 microns.
Furthermore, a parameter value is set in the high-pressure overflow valve, and when the oil pressure is higher than the parameter value, the high-pressure overflow valve is opened, and the lubricating oil returns to the oil tank.
Further, the parameter value set by the high-pressure overflow valve is 400 PSI.
Further, a temperature parameter is set on the high-pressure cooler, and when the oil temperature is higher than the set temperature parameter, the high-pressure cooler is turned on to dissipate heat.
Further, the temperature parameter set by the high-pressure cooler is 40-45 ℃.
Furthermore, a low-pressure oil suction filter, a low-pressure oil pump, a low-pressure overflow valve, a low-pressure cooler, a low-pressure sensor and a low-pressure temperature sensor are sequentially arranged on the low-pressure oil inlet pipe along the flow direction of the oil path.
Further, the filtering precision of the low-pressure oil absorption filter is 40-50 microns.
And a low-pressure oil inlet filter is arranged between the low-pressure overflow valve and the low-pressure cooler.
Further, the filtering precision of the low-pressure oil inlet filter is 10-25 microns.
Furthermore, a low-pressure parameter value is set in the low-pressure overflow valve, and when the oil pressure is higher than the set low-pressure parameter value, the low-pressure overflow valve is opened, and the lubricating oil returns to the oil tank.
Further, the low-pressure parameter value set by the low-pressure overflow valve is 200 PSI.
Further, a low-pressure temperature parameter is set on the low-pressure cooler, and when the oil temperature is higher than the set low-pressure temperature parameter, the low-pressure cooler is opened to dissipate heat.
Further, the temperature parameter set by the low-pressure cooler is 40-45 ℃.
Further, an oil tank temperature sensor is arranged on the oil tank.
Compared with the prior art, the invention has the beneficial effects that: the high-low pressure lubricating system for the high-power plunger pump is provided, the traditional lubricating 'one-way oil inlet' mode is changed, two ways of oil inlets of a high-pressure oil way and a low-pressure oil way are divided, the high-pressure oil way is mainly used for lubricating a connecting rod bearing bush and a crosshead bearing bush which have higher lubricating requirements, and the low-pressure oil way is mainly used for lubricating a crankshaft bearing, a crosshead slide rail, a reduction gearbox bearing and a reduction gearbox gear pair which have lower lubricating requirements in comparison; the two oil pumps supply oil, so that the oil supply amount of each oil way can be better ensured, the lubricating oil can be better distributed, the problems of uneven distribution of the lubricating oil and insufficient lubricating oil amount of each lubricating point due to excessive lubricating branches are avoided, the utilization rate of the lubricating oil is improved, and the abnormity is reduced; the high-pressure oil circuit and the low-pressure oil circuit both use two-stage filtration, so that impurities in lubricating oil can be reduced, and the service life of each part of the plunger pump is prolonged. The overflow valve, the pressure sensor and the temperature sensor are used for protecting the whole lubricating system.
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a schematic diagram of the high-pressure oil passage and the low-pressure oil passage in the plunger pump of the present invention.
Fig. 2 is a schematic diagram of the external oil supply system of the plunger pump of the present invention.
The oil pump comprises a connecting rod bearing bush 1, a crosshead bearing bush 2, a crankshaft bearing 3, a crosshead upper slide rail 4, a crosshead lower slide rail 5, a reduction gearbox gear pair 6, a reduction gearbox bearing 7, a high-pressure oil way 8, a low-pressure oil way 9, an oil tank 10, a high-pressure oil absorption filter 11, a high-pressure oil pump 12, a high-pressure overflow valve 13, a high-pressure oil inlet filter 14, a high-pressure cooler 15, a low-pressure oil absorption filter 16, a low-pressure oil pump 17, a low-pressure overflow valve 18, a low-pressure oil inlet filter 19, a low-pressure cooler 20, a high-pressure sensor 21, a.
Detailed Description
As shown in fig. 1 to 2, a high-low pressure lubrication system for a high-power plunger pump comprises a high-pressure oil path 8 and a low-pressure oil path 9, wherein the high-pressure oil path 8 is used for lubricating a connecting rod bearing bush 1 and a crosshead bearing bush 2 in the plunger pump, and the low-pressure oil path 9 is used for lubricating a crankshaft bearing 3, a crosshead slide rail, a reduction gearbox bearing 7 and a reduction gearbox gear pair 6 in the plunger pump. The crosshead shoe includes a crosshead upper shoe 4 and a crosshead lower shoe 5. The method changes the traditional lubricating 'one-way oil inlet' mode, and is divided into two ways of oil inlet of a high-pressure oil way 8 and a low-pressure oil way 9, wherein the high-pressure oil way 8 is mainly used for lubricating a connecting rod bearing bush 1 and a crosshead bearing bush 2 which have higher lubricating requirements, and the low-pressure oil way 9 is mainly used for lubricating a crankshaft bearing 3, a crosshead slide rail, a reduction gearbox bearing 7 and a reduction gearbox gear pair 6 which have slightly lower lubricating requirements in comparison; the oil supply of each oil way can be better ensured through the two oil pumps, the lubricating oil can be better distributed, the problems that the lubricating oil is unevenly distributed and the lubricating oil quantity of each lubricating point is insufficient due to too many lubricating branches are avoided, the utilization rate of the lubricating oil is improved, and the abnormity is reduced. The fit clearance of the connecting rod bearing bush 1 and the crosshead bearing bush 2 is small, the bearing load is large, the contact area is large, the requirement on lubrication is high, the lubrication oil ways of the two bearing bushes are independently opened together with other oil ways, the high-pressure oil pump 12 is adopted to supply oil independently, sufficient lubricating oil can better establish an oil film, the abrasion of the two bearing bushes under high load is effectively reduced, heat and impurities generated by friction are rapidly taken away, and the service life of the two bearing bushes is prolonged.
The lubricating oil quantity of the high-pressure and low-pressure lubricating system is 150-200L/min.
The rated lubricating oil pressure of the high-pressure oil way is 200-350 PSI.
The rated lubricating oil pressure of the high-pressure oil way is 60-150 PSI.
And independent lubricating oil paths are respectively arranged at the oil inlet of the low-pressure oil path 9 for the reduction gearbox bearing 7 and the reduction gearbox gear pair 6. The reduction box bearing 7 and the reduction box gear pair 6 are high in rotating speed, oil is supplied independently, sufficient lubricating oil can be guaranteed, an oil film is effectively established, heat generated by friction is taken away rapidly, and the service life is prolonged.
A high-low pressure lubricating system for high-power plunger pump includes oil feeding system, oil feeding system includes oil tank 10, and the high pressure advances oil pipe, and the low pressure advances oil pipe, and the high pressure returns oil pipe, and the low pressure returns oil pipe, the oil-out of oil tank 10 advances oil pipe through the high pressure and is connected with plunger pump's 8 oil inlets of high pressure oil circuit, the oil-out of oil tank 10 advances oil pipe through the low pressure and is connected with plunger pump's 9 oil inlets of low pressure oil circuit, the 8 oil-outs of high pressure oil circuit of plunger pump return oil pipe through the high pressure and inserts oil tank 10, plunger pump's 9 oil circuit oil-outs return oil pipe through the low pressure insert oil tank 10, and the high pressure advances oil. The independent high-pressure oil inlet-oil return and low-pressure oil inlet-oil return effectively meet different lubricating requirements of various lubricating points in the plunger pump, the lubricating requirements are high, high-pressure independent oil supply is realized, and the distribution of the oil inlets meets respective requirements.
And a high-pressure oil suction filter 11, a high-pressure oil pump 12, a high-pressure overflow valve 13, a high-pressure oil inlet filter 14 and a high-pressure cooler 15 are sequentially arranged on the high-pressure oil inlet pipe along the flow direction of the oil path.
The filtering precision of the high-pressure oil absorption filter 11 is 40-50 microns, and the filtering precision of the high-pressure oil inlet filter 14 is 10-25 microns. The high-pressure oil inlet pipe adopts double filtration, so that the filtering precision is higher, impurities in lubricating oil can be reduced, and the service life of each part of the plunger pump is prolonged.
And setting a parameter value on the high-pressure overflow valve 13, when the oil pressure of the lubricating oil is higher than the parameter value, opening the high-pressure overflow valve 13, returning the lubricating oil to the oil tank 10, and closing the high-pressure overflow valve 13 when the oil pressure of the lubricating oil is normal. The parameter value set by the high-pressure overflow valve is 400 PSI.
A temperature parameter is set on the high-pressure cooler 15, and when the oil temperature is higher than the set temperature parameter, the high-pressure cooler 15 is turned on to dissipate heat. And the lubricating oil is cooled by heat dissipation, so that the lubricating oil entering the high-pressure oil way 8 is ensured to be within a normal use temperature range.
The temperature parameter set by the high-pressure cooler is 40-45 ℃.
And a low-pressure oil suction filter 16, a low-pressure oil pump 17, a low-pressure overflow valve 18, a low-pressure oil inlet filter 19 and a low-pressure cooler 20 are sequentially arranged on the low-pressure oil inlet pipe along the flow direction of the oil path.
The filtering precision of the low-pressure oil suction filter 16 is 40-50 microns, and the filtering precision of the low-pressure oil inlet filter 19 is 10-25 microns. The low pressure advances oil pipe and adopts dual filtration, and filter fineness is higher, can reduce the impurity in the lubricating oil, improves the life of each part of plunger pump.
And a low-pressure parameter value is set in the low-pressure overflow valve 18, when the oil pressure is higher than the set low-pressure parameter value, the low-pressure overflow valve 18 is opened, the lubricating oil returns to the oil tank 10, and when the oil pressure of the lubricating oil is normal, the low-pressure overflow valve 18 is closed. And the low-pressure parameter value set by the low-pressure overflow valve is 200 PSI.
A low-pressure temperature parameter is set on the low-pressure cooler 20, and when the oil temperature is higher than the set low-pressure temperature parameter, the low-pressure cooler 20 is turned on to dissipate heat. And the lubricating oil is cooled by heat dissipation, so that the lubricating oil entering the low-pressure oil way 9 is ensured to be within a normal use temperature range.
The temperature parameter set by the low-pressure cooler is 40-45 ℃.
And a high-pressure sensor 21 and a high-pressure temperature sensor 22 are arranged at the tail end of the high-pressure oil inlet pipe along the flow direction of the oil way. The high-pressure sensor 21 and the high-pressure temperature sensor 22 are used to detect the pressure and temperature of the lubricating oil entering the high-pressure oil passage 8.
And a low-pressure sensor and a low-pressure temperature sensor are arranged at the tail end of the low-pressure oil inlet pipe along the flow direction of the oil way. The low-pressure sensor and the low-pressure temperature sensor are used for detecting the pressure and temperature of the lubricating oil entering the low-pressure oil passage 9. A tank temperature sensor 23 is provided on the tank 10. The temperature monitoring of the whole high-low pressure lubricating system is realized through a fuel tank temperature sensor 23, a high-pressure temperature sensor 22 and a low-pressure temperature sensor. The high-pressure sensor 21, the high-pressure temperature sensor 22, the low-pressure sensor, the low-pressure temperature sensor and the oil tank temperature sensor 23 are arranged in the use range, the oil supply amount is automatically adjusted by monitoring the temperature and the pressure change of lubricating oil during operation, and the oil supply amount is ensured to be sufficient.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (23)
1. A high-low pressure lubricating system for a high-power plunger pump is characterized in that: the high-pressure oil way is used for lubricating a connecting rod bearing bush and a crosshead bearing bush in the plunger pump, and the low-pressure oil way is used for lubricating a crankshaft bearing, a crosshead slide rail, a reduction gearbox bearing and a reduction gearbox gear pair in the plunger pump.
2. The high and low pressure lubrication system for high power plunger pumps as claimed in claim 1, wherein: the lubricating oil quantity of the high-pressure and low-pressure lubricating system is 150-200L/min.
3. The high and low pressure lubrication system for high power plunger pumps as claimed in claim 1, wherein: the rated lubricating oil pressure of the high-pressure oil way is 200-350 PSI.
4. The high and low pressure lubrication system for high power plunger pumps as claimed in claim 1, wherein: the rated lubricating oil pressure of the high-pressure oil way is 60-150 PSI.
5. The high and low pressure lubrication system for high power plunger pumps as claimed in claim 1, wherein: and independent lubricating oil paths are respectively arranged at the oil inlet of the low-pressure oil path for the reduction box bearing and the reduction box gear pair.
6. The high and low pressure lubrication system for high power plunger pumps as claimed in claim 1, wherein: a high-low pressure lubricating system for high-power plunger pump includes the oil tank, and high pressure advances oil pipe, and low pressure advances oil pipe, and high pressure returns oil pipe, and low pressure returns oil pipe, the oil-out of oil tank advances oil pipe through high pressure and is connected with the high-pressure oil circuit oil inlet of plunger pump, the oil-out of oil tank advances oil pipe through the low pressure and is connected with the low pressure oil circuit oil inlet of plunger pump, the high pressure oil circuit oil-out of plunger pump returns oil pipe through high pressure and inserts the oil tank, the low pressure oil circuit oil-out of plunger pump returns oil pipe through the low pressure and inserts the oil tank, and high pressure advances oil pipe and low pressure.
7. The high and low pressure lubrication system for high power plunger pumps of claim 6, wherein: and the high-pressure oil inlet pipe is sequentially provided with a high-pressure oil absorption filter, a high-pressure oil pump, a high-pressure overflow valve, a high-pressure cooler, a high-pressure sensor and a high-pressure temperature sensor along the flow direction of an oil way.
8. The high and low pressure lubrication system for high power plunger pumps of claim 7, wherein: the filtering precision of the high-pressure oil absorption filter is 40-50 microns.
9. The high and low pressure lubrication system for high power plunger pumps of claim 7, wherein: and a high-pressure oil inlet filter is arranged between the high-pressure overflow valve and the high-pressure cooler.
10. A high and low pressure lubrication system for high power plunger pumps as claimed in claim 9, wherein: the filtering precision of the high-pressure oil inlet filter is 10-25 microns.
11. The high and low pressure lubrication system for high power plunger pumps of claim 7, wherein: and setting a parameter value on the high-pressure overflow valve, and opening the high-pressure overflow valve when the oil pressure is higher than the parameter value, so that the lubricating oil returns to the oil tank.
12. A high and low pressure lubrication system for high power plunger pumps as claimed in claim 11 wherein: the parameter value set by the high-pressure overflow valve is 400 PSI.
13. The high and low pressure lubrication system for high power plunger pumps of claim 7, wherein: and setting a temperature parameter on the high-pressure cooler, and opening the high-pressure cooler to dissipate heat when the oil temperature is higher than the set temperature parameter.
14. A high and low pressure lubrication system for high power plunger pumps as claimed in claim 13 wherein: the temperature parameter set by the high-pressure cooler is 40-45 ℃.
15. The high and low pressure lubrication system for high power plunger pumps of claim 6, wherein: and the low-pressure oil inlet pipe is sequentially provided with a low-pressure oil absorption filter, a low-pressure oil pump, a low-pressure overflow valve, a low-pressure cooler, a low-pressure sensor and a low-pressure temperature sensor along the flow direction of an oil way.
16. A high and low pressure lubrication system for high power plunger pumps as claimed in claim 15 wherein: the filtering precision of the low-pressure oil absorption filter is 40-50 microns.
17. A high and low pressure lubrication system for high power plunger pumps as claimed in claim 15 wherein: and a low-pressure oil inlet filter is arranged between the low-pressure overflow valve and the low-pressure cooler.
18. A high and low pressure lubrication system for high power plunger pumps as claimed in claim 17 wherein: the filtering precision of the low-pressure oil inlet filter is 10-25 microns.
19. A high and low pressure lubrication system for high power plunger pumps as claimed in claim 15 wherein: and a low-pressure parameter value is set on the low-pressure overflow valve, and when the oil pressure is higher than the set low-pressure parameter value, the low-pressure overflow valve is opened, and the lubricating oil returns to the oil tank.
20. A high and low pressure lubrication system for high power plunger pumps as claimed in claim 19 wherein: and the low-pressure parameter value set by the low-pressure overflow valve is 200 PSI.
21. A high and low pressure lubrication system for high power plunger pumps as claimed in claim 15 wherein: and a low-pressure temperature parameter is set on the low-pressure cooler, and when the oil temperature is higher than the set low-pressure temperature parameter, the low-pressure cooler is opened to dissipate heat.
22. A high and low pressure lubrication system for high power plunger pumps as claimed in claim 21 wherein: the temperature parameter set by the low-pressure cooler is 40-45 ℃.
23. The high and low pressure lubrication system for high power plunger pumps of claim 6, wherein: and an oil tank temperature sensor is arranged on the oil tank.
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| CN202010170129.2A CN111188763A (en) | 2020-03-12 | 2020-03-12 | High-low pressure lubricating system for high-power plunger pump |
| CN202310368482.5A CN116398424A (en) | 2020-03-12 | 2020-03-12 | High-low pressure lubrication system for high-power plunger pump |
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| CN202010170129.2A CN111188763A (en) | 2020-03-12 | 2020-03-12 | High-low pressure lubricating system for high-power plunger pump |
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| US11365615B2 (en) | 2020-07-17 | 2022-06-21 | Bj Energy Solutions, Llc | Methods, systems, and devices to enhance fracturing fluid delivery to subsurface formations during high-pressure fracturing operations |
| US11608727B2 (en) | 2020-07-17 | 2023-03-21 | Bj Energy Solutions, Llc | Methods, systems, and devices to enhance fracturing fluid delivery to subsurface formations during high-pressure fracturing operations |
| US11920450B2 (en) | 2020-07-17 | 2024-03-05 | Bj Energy Solutions, Llc | Methods, systems, and devices to enhance fracturing fluid delivery to subsurface formations during high-pressure fracturing operations |
| CN113653946A (en) * | 2021-01-29 | 2021-11-16 | 北京华海基业机械设备有限公司 | Non-backpressure liquid return system and large-flow plunger pump |
| US11668289B2 (en) | 2021-05-12 | 2023-06-06 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Fracturing apparatus |
| US11639654B2 (en) | 2021-05-24 | 2023-05-02 | Bj Energy Solutions, Llc | Hydraulic fracturing pumps to enhance flow of fracturing fluid into wellheads and related methods |
| US11867045B2 (en) | 2021-05-24 | 2024-01-09 | Bj Energy Solutions, Llc | Hydraulic fracturing pumps to enhance flow of fracturing fluid into wellheads and related methods |
| US11732563B2 (en) | 2021-05-24 | 2023-08-22 | Bj Energy Solutions, Llc | Hydraulic fracturing pumps to enhance flow of fracturing fluid into wellheads and related methods |
| CN114263726A (en) * | 2021-11-16 | 2022-04-01 | 煤炭科学研究总院 | Lubricating device and coal mining machine |
| CN114263726B (en) * | 2021-11-16 | 2024-05-14 | 煤炭科学研究总院有限公司 | Lubricating device and coal mining machine |
| CN114753999A (en) * | 2022-03-10 | 2022-07-15 | 烟台杰瑞石油装备技术有限公司 | Lubrication system |
| WO2023168823A1 (en) * | 2022-03-10 | 2023-09-14 | 烟台杰瑞石油装备技术有限公司 | Lubrication system |
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