US20220220952A1 - Fracturing pump assembly - Google Patents
Fracturing pump assembly Download PDFInfo
- Publication number
- US20220220952A1 US20220220952A1 US17/144,912 US202117144912A US2022220952A1 US 20220220952 A1 US20220220952 A1 US 20220220952A1 US 202117144912 A US202117144912 A US 202117144912A US 2022220952 A1 US2022220952 A1 US 2022220952A1
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- United States
- Prior art keywords
- pump
- frame
- assembly
- pump assembly
- crankshaft
- 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.)
- Abandoned
Links
- 239000012530 fluid Substances 0.000 claims description 23
- 238000000638 solvent extraction Methods 0.000 claims description 4
- 238000005461 lubrication Methods 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000008646 thermal stress Effects 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 description 17
- 239000003921 oil Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- F04B19/00—Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00
- F04B19/04—Pumps for special use
-
- 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
- F04B53/14—Pistons, piston-rods or piston-rod connections
- F04B53/144—Adaptation of piston-rods
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/2607—Surface equipment specially adapted for fracturing operations
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0408—Pistons
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/053—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders
- F04B1/0536—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders with two or more serially arranged radial piston-cylinder units
- F04B1/0538—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders with two or more serially arranged radial piston-cylinder units located side-by-side
-
- 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
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/06—Mobile combinations
-
- 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
- F04B53/001—Noise damping
- F04B53/003—Noise damping by damping supports
-
- 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
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
- F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
- F04B9/045—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being eccentrics
-
- 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
- F04B53/006—Crankshafts
Definitions
- This invention relates to pumps, and in particular, to an improved fracturing pump assembly.
- Drilling and production systems are often employed to access and extract hydrocarbons from subterranean formations. These systems may be located onshore or offshore depending on the location of a desired resource. Further, such systems generally include a wellhead assembly mounted on a well through which the resource is accessed or extracted. These wellhead assemblies may include a wide variety of components, such as various casings, valves, pumps, fluid conduits, and the like, that control drilling or extraction operations.
- Drilling and production operations employ fluids referred to as drilling fluids to provide lubrication and cooling of the drill bit, clear away cuttings, and maintain desired hydrostatic pressure during operations.
- Drilling fluids can include all types of water-based, oil-based, or synthetic-based drilling fluids.
- Pumps can be used to move large quantities of fluid. Operations come to a halt if the pumps fail, and thus, reliability under harsh conditions, using all types of abrasive fluids, is of utmost commercial interest. Also, portability of these pumps is an issue, so having a versatile pump which can meet the needs of virtually any situation would be desirable.
- An improved fracturing pump is provided.
- the pump is reconfigurable on site. Internal components of the pump may be varied to meet the requirements of a specific operation. The reconfiguration gives the user the ability to increase or decrease the horsepower of the pump.
- a closed loop oil feed system provides constant and reliable lubrication even under heavy loads. The sealing system is enhanced to reduce leaks and thermal stresses.
- the pump also has an improved frame and chassis to reduce NVH and enhance reliability.
- FIG. 1 generally depicts a wellsite system, in accordance with one or more implementations described herein.
- FIG. 2 shows a side cutaway view of a prior art pump.
- FIG. 3 shows a perspective view of a first embodiment of a fracturing pump assembly.
- FIG. 4 shows a perspective view of a frame and chassis configuration for the pump of FIG. 3 .
- FIG. 5 shows a side cutaway view of a second embodiment of the inventive system using different gearing.
- FIG. 6 shows a side cutaway view illustrating the pistons and connecting rods.
- FIG. 7 shows a detail of the fluid handling end.
- FIG. 8 shows a detail of the bearing assembly.
- FIG. 9 shows a perspective view of a third embodiment of a fracturing pump assembly.
- FIG. 10 shows a perspective view of a frame and chassis configuration for the pump of FIG. 9 .
- FIG. 1 illustrates a wellsite system in which the inventive fracturing pump can be employed.
- the wellsite system of FIG. 1 may be onshore or offshore.
- a borehole 11 may be formed in subsurface formations by rotary drilling using any suitable technique.
- a drill string 12 may be suspended within the borehole 11 and may have a bottom hole assembly 100 that includes a drill bit 105 at its lower end.
- a surface system of the wellsite system of FIG. 1 may include a platform and derrick assembly 10 positioned over the borehole 11 , the platform and derrick assembly 10 including a rotary table 16 , kelly 17 , hook 18 and rotary swivel 19 .
- the drill string 12 may be rotated by the rotary table 16 , energized by any suitable means, which engages the kelly 17 at the upper end of the drill string 12 .
- the drill string 12 may be suspended from the hook 18 , attached to a traveling block (not shown), through the kelly 17 and the rotary swivel 19 , which permits rotation of the drill string 12 relative to the hook 18 .
- a top drive system could alternatively be used, which may be a top drive system well known to those of ordinary skill in the art.
- the surface system may also include drilling fluid 26 (also referred to as fracturing) stored in a pit/tank 27 at the wellsite.
- a pump 29 supported on a skid 28 may deliver the drilling fluid 26 to the interior of the drill string 12 via a port in the swivel 19 , causing the drilling fluid to flow downwardly through the drill string 12 as indicated by the directional arrow 8 .
- the drilling fluid 26 may exit the drill string 12 via ports in a drill bit 105 , and circulate upwardly through the annulus region between the outside of the drill string 12 and the wall of the borehole 11 , as indicated by the directional arrows 9 .
- a bottom hole assembly 100 of the wellsite system of FIG. 1 may include logging-while-drilling (LWD) modules 120 and 120 A and/or measuring-while-drilling (MWD) modules 130 and 130 A, a roto-steerable system and motor 150 , and the drill bit 105 .
- LWD logging-while-drilling
- MWD measuring-while-drilling
- FIG. 2 shows a cutaway side view of a prior art fracturing pump, illustrating various components of the power assembly, the portion of the pump that converts rotational energy into reciprocating motion.
- a pump as shown in FIG. 2 could be used as pump 29 of FIG. 1 , although many other fracturing pumps, including those with designs described below in accordance with certain embodiments of the present technique, could instead be used as pump 29 .
- Pinion gears 52 along a pinion shaft 48 drive a larger gear referred to as a bull gear 42 (e.g., a helical gear or a herringbone gear), which rotates on a crankshaft 40 .
- Pinion shaft 48 is turned by a motor (not shown).
- the crankshaft 40 turns to cause rotational motion of hubs 44 disposed on the crankshaft 40 , each hub 44 being connected to or integrated with a connecting rod 46 .
- the connecting rods 46 couple to a crosshead 54 (a crosshead block and crosshead extension as shown may be referred to collectively as the crosshead 54 herein).
- the crosshead 54 moves translationally constrained by guide 57 .
- Pony rods 60 connect the crosshead 54 to a piston 58 . In the fluid end of the pump, each piston 58 reciprocates to move fracturing in and out of valves in the fluid end of the pump 29 .
- the pump 100 has a crankshaft 102 , which drives connecting rods 104 , which ultimately cause reciprocating action of the pistons 106 to create pumping action as in the prior art model discussed above.
- the pump 100 has an enhanced structural arrangement to increase pump reliability as can be seen most particularly in FIG. 4 .
- the pump frame 105 has a series of partitioning structural dividing walls 107 which serve to separate the rods and pistons but is also configured to reduce NVH and increase pump reliability. In a key aspect of the invention, NVH reduction greatly increases pump reliability by reducing stresses on the pump 100 .
- the dual chassis skid arrangement 114 is enhanced by adding multiple mounting points (for the pump 100 main body) for increased rigidity and to reduce deflection under load.
- frame 105 and skid 114 are a single integrated structure, which greatly reduces noise, vibration, and harshness (NVH). The reduction in NVH enhances power output significantly.
- FIGS. 5 and 6 a second embodiment of the pump 200 is shown. It can be seen that the pump 200 has a crankshaft 202 , which drives connecting rods 204 , which ultimately cause reciprocating action of the pistons 206 to create pumping action as in the prior art model, and the previous embodiment discussed above.
- the pump 100 has the same enhanced structural arrangement to increase pump reliability as discussed above, modified to accommodate the different geometry of the pump 200 versus pump 100 .
- a closed loop oil feed system 118 , ( 218 ) common to both pumps 100 , 200 is part of an optimized lubrication system which reduces friction between crosshead 116 ( 216 ) and crosshead guides 117 ( 217 ). Low operating lube oil temperatures and high mechanical efficiency increase reliability.
- a robust sealing system is provided to improve leak and thermal stresses handling during harsh high temperature fracturing operation in the field.
- the interior components of the pump including the plunger 140 ( 240 ), can be interchangeably replaced to increase power output, a key aspect of the invention.
- power generation for pumps 100 , 200 range from 3000 HP to 4150 HP by way of interchangeable components.
- the pumps 100 , 200 allow variable high pressure output and high flow rate based on variance of plunger size and stroke length. Specifically, an 8 inch stroke creates a horsepower of about 3000 HP, with 9, 10, and 11 inch strokes creating 3400 HP, 3755 HP, and 4150 HP, respectively. (See attached spec sheet for additional details).
- the enhanced fluid end assembly 123 is shown in FIG. 7 .
- the cylindrical bearing assembly 127 is shown in FIG. 8 . Both the fluid end assembly 123 , and bearing assembly 127 are common to both pumps 100 , 200 .
- FIGS. 9 and 10 shows another alternative embodiment of the pump assembly 300 .
- the assembly 300 is a fracturing pump with gearbox drive horsepower capability that can handle ranges between 3000 Hp to 5000 HP E/T using drive power electric motor or turbine engine E/T based on a gear box ratio between 6.963:1 to 10.50:1 with optimized weight and drive stroke to meet demand for high power, pressure and less equipment.
- the pump 300 has a crankshaft 302 , which drives connecting rods, which ultimately cause reciprocating action of the pistons to create pumping action as in the prior art model discussed above.
- the pump 300 has an enhanced structural arrangement to increase pump reliability as can be seen most particularly in FIG. 10 .
- the pump frame 305 has a series of partitioning structural dividing walls 107 which serve to separate the rods and pistons but is also configured to reduce NVH and increase pump reliability.
- NVH reduction greatly increases pump reliability by reducing stresses on the pump 100 .
- the dual chassis skid arrangement 314 is enhanced by adding multiple mounting points (for the pump 300 main body) for increased rigidity and to reduce deflection under load.
- frame 305 and skid 314 are a single integrated structure, which greatly reduces noise, vibration, and harshness (NVH). The reduction in NVH enhances power output significantly.
- the pump 300 uses the closed loop oil feed system 118 , ( 218 ) common to pumps 100 , 200 , which is part of an optimized lubrication system which reduces friction between the crosshead and crosshead guides. Low operating lube oil temperatures and high mechanical efficiency increase long term reliability.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
An improved fracturing pump is provided. The pump is reconfigurable on site. Internal components of the pump may be varied to meet the requirements of a specific operation. The reconfiguration gives the user the ability to increase or decrease the horsepower of the pump. A closed loop oil feed system provides constant and reliable lubrication even under heavy loads. The sealing system is enhanced to reduce leaks and thermal stresses. The pump also has an improved frame and chassis to reduce NVH and enhance reliability.
Description
- This invention relates to pumps, and in particular, to an improved fracturing pump assembly.
- Drilling and production systems are often employed to access and extract hydrocarbons from subterranean formations. These systems may be located onshore or offshore depending on the location of a desired resource. Further, such systems generally include a wellhead assembly mounted on a well through which the resource is accessed or extracted. These wellhead assemblies may include a wide variety of components, such as various casings, valves, pumps, fluid conduits, and the like, that control drilling or extraction operations.
- Drilling and production operations, such as fracking, employ fluids referred to as drilling fluids to provide lubrication and cooling of the drill bit, clear away cuttings, and maintain desired hydrostatic pressure during operations. Drilling fluids can include all types of water-based, oil-based, or synthetic-based drilling fluids. Pumps can be used to move large quantities of fluid. Operations come to a halt if the pumps fail, and thus, reliability under harsh conditions, using all types of abrasive fluids, is of utmost commercial interest. Also, portability of these pumps is an issue, so having a versatile pump which can meet the needs of virtually any situation would be desirable.
- An improved fracturing pump is provided. The pump is reconfigurable on site. Internal components of the pump may be varied to meet the requirements of a specific operation. The reconfiguration gives the user the ability to increase or decrease the horsepower of the pump. A closed loop oil feed system provides constant and reliable lubrication even under heavy loads. The sealing system is enhanced to reduce leaks and thermal stresses. The pump also has an improved frame and chassis to reduce NVH and enhance reliability.
- It is a major object of the invention to provide an improved fracturing pump assembly.
- It is another object of the invention to provide a fracturing pump assembly with interchangeable parts.
- It is another object of the invention to provide a fracturing pump assembly with a variable power output.
- It is another object of the invention to provide a fracturing pump assembly having an improved frame which utilizes partition support.
- It is another object of the invention to provide a fracturing pump assembly where the pump frame is integrated into the skid chassis.
- It is another object of the invention to provide a fracturing pump assembly with a closed loop lubricating system.
-
FIG. 1 generally depicts a wellsite system, in accordance with one or more implementations described herein. -
FIG. 2 shows a side cutaway view of a prior art pump. -
FIG. 3 shows a perspective view of a first embodiment of a fracturing pump assembly. -
FIG. 4 shows a perspective view of a frame and chassis configuration for the pump ofFIG. 3 . -
FIG. 5 . shows a side cutaway view of a second embodiment of the inventive system using different gearing. -
FIG. 6 shows a side cutaway view illustrating the pistons and connecting rods. -
FIG. 7 shows a detail of the fluid handling end. -
FIG. 8 shows a detail of the bearing assembly. -
FIG. 9 shows a perspective view of a third embodiment of a fracturing pump assembly. -
FIG. 10 shows a perspective view of a frame and chassis configuration for the pump ofFIG. 9 . - Generally speaking,
FIG. 1 illustrates a wellsite system in which the inventive fracturing pump can be employed. The wellsite system ofFIG. 1 may be onshore or offshore. In the wellsite system ofFIG. 1 , aborehole 11 may be formed in subsurface formations by rotary drilling using any suitable technique. Adrill string 12 may be suspended within theborehole 11 and may have abottom hole assembly 100 that includes adrill bit 105 at its lower end. A surface system of the wellsite system ofFIG. 1 may include a platform andderrick assembly 10 positioned over theborehole 11, the platform andderrick assembly 10 including a rotary table 16, kelly 17,hook 18 androtary swivel 19. Thedrill string 12 may be rotated by the rotary table 16, energized by any suitable means, which engages the kelly 17 at the upper end of thedrill string 12. Thedrill string 12 may be suspended from thehook 18, attached to a traveling block (not shown), through thekelly 17 and therotary swivel 19, which permits rotation of thedrill string 12 relative to thehook 18. A top drive system could alternatively be used, which may be a top drive system well known to those of ordinary skill in the art. - In the wellsite system of
FIG. 1 , the surface system may also include drilling fluid 26 (also referred to as fracturing) stored in a pit/tank 27 at the wellsite. Apump 29 supported on askid 28 may deliver thedrilling fluid 26 to the interior of thedrill string 12 via a port in theswivel 19, causing the drilling fluid to flow downwardly through thedrill string 12 as indicated by thedirectional arrow 8. Thedrilling fluid 26 may exit thedrill string 12 via ports in adrill bit 105, and circulate upwardly through the annulus region between the outside of thedrill string 12 and the wall of theborehole 11, as indicated by thedirectional arrows 9. In this manner, thedrilling fluid 26 lubricates thedrill bit 105 and carries formation cuttings up to the surface, as thedrilling fluid 26 is returned to the pit/tank 27 for recirculation. Thedrilling fluid 26 also serves to maintain hydrostatic pressure and prevent well collapse. Thedrilling fluid 26 may also be used for telemetry purposes. Abottom hole assembly 100 of the wellsite system ofFIG. 1 may include logging-while-drilling (LWD)modules modules motor 150, and thedrill bit 105. -
FIG. 2 shows a cutaway side view of a prior art fracturing pump, illustrating various components of the power assembly, the portion of the pump that converts rotational energy into reciprocating motion. A pump as shown inFIG. 2 could be used aspump 29 ofFIG. 1 , although many other fracturing pumps, including those with designs described below in accordance with certain embodiments of the present technique, could instead be used aspump 29.Pinion gears 52 along apinion shaft 48 drive a larger gear referred to as a bull gear 42 (e.g., a helical gear or a herringbone gear), which rotates on acrankshaft 40.Pinion shaft 48 is turned by a motor (not shown). Thecrankshaft 40 turns to cause rotational motion ofhubs 44 disposed on thecrankshaft 40, eachhub 44 being connected to or integrated with a connectingrod 46. By way of the connectingrods 46, the rotational motion of the crankshaft 40 (andhub 44 connected thereto) is converted into reciprocating motion. The connectingrods 46 couple to a crosshead 54 (a crosshead block and crosshead extension as shown may be referred to collectively as thecrosshead 54 herein). Thecrosshead 54 moves translationally constrained byguide 57.Pony rods 60 connect thecrosshead 54 to apiston 58. In the fluid end of the pump, eachpiston 58 reciprocates to move fracturing in and out of valves in the fluid end of thepump 29. - Referring now to
FIGS. 3 and 4 , it can be seen that thepump 100 has acrankshaft 102, which drives connectingrods 104, which ultimately cause reciprocating action of thepistons 106 to create pumping action as in the prior art model discussed above. Thepump 100 has an enhanced structural arrangement to increase pump reliability as can be seen most particularly inFIG. 4 . It can be seen that thepump frame 105, has a series of partitioningstructural dividing walls 107 which serve to separate the rods and pistons but is also configured to reduce NVH and increase pump reliability. In a key aspect of the invention, NVH reduction greatly increases pump reliability by reducing stresses on thepump 100. The dualchassis skid arrangement 114 is enhanced by adding multiple mounting points (for thepump 100 main body) for increased rigidity and to reduce deflection under load. In a key aspect of the invention,frame 105 and skid 114 are a single integrated structure, which greatly reduces noise, vibration, and harshness (NVH). The reduction in NVH enhances power output significantly. - Referring now to
FIGS. 5 and 6 a second embodiment of the pump 200 is shown. It can be seen that the pump 200 has a crankshaft 202, which drives connecting rods 204, which ultimately cause reciprocating action of the pistons 206 to create pumping action as in the prior art model, and the previous embodiment discussed above. Thepump 100 has the same enhanced structural arrangement to increase pump reliability as discussed above, modified to accommodate the different geometry of the pump 200 versuspump 100. - A closed loop
oil feed system 118, (218) common to bothpumps 100, 200 is part of an optimized lubrication system which reduces friction between crosshead 116 (216) and crosshead guides 117 (217). Low operating lube oil temperatures and high mechanical efficiency increase reliability. - A robust sealing system is provided to improve leak and thermal stresses handling during harsh high temperature fracturing operation in the field. As previously stated, the interior components of the pump, including the plunger 140 (240), can be interchangeably replaced to increase power output, a key aspect of the invention. In a preferred embodiment power generation for
pumps 100, 200 range from 3000 HP to 4150 HP by way of interchangeable components. Also, thepumps 100, 200 allow variable high pressure output and high flow rate based on variance of plunger size and stroke length. Specifically, an 8 inch stroke creates a horsepower of about 3000 HP, with 9, 10, and 11 inch strokes creating 3400 HP, 3755 HP, and 4150 HP, respectively. (See attached spec sheet for additional details). - The enhanced
fluid end assembly 123 is shown inFIG. 7 . Thecylindrical bearing assembly 127 is shown inFIG. 8 . Both thefluid end assembly 123, and bearingassembly 127 are common to bothpumps 100, 200. -
FIGS. 9 and 10 shows another alternative embodiment of thepump assembly 300. Theassembly 300 is a fracturing pump with gearbox drive horsepower capability that can handle ranges between 3000 Hp to 5000 HP E/T using drive power electric motor or turbine engine E/T based on a gear box ratio between 6.963:1 to 10.50:1 with optimized weight and drive stroke to meet demand for high power, pressure and less equipment. - It can be seen that the
pump 300 has acrankshaft 302, which drives connecting rods, which ultimately cause reciprocating action of the pistons to create pumping action as in the prior art model discussed above. Thepump 300 has an enhanced structural arrangement to increase pump reliability as can be seen most particularly inFIG. 10 . It can be seen that thepump frame 305, has a series of partitioningstructural dividing walls 107 which serve to separate the rods and pistons but is also configured to reduce NVH and increase pump reliability. In a key aspect of the invention, NVH reduction greatly increases pump reliability by reducing stresses on thepump 100. The dualchassis skid arrangement 314 is enhanced by adding multiple mounting points (for thepump 300 main body) for increased rigidity and to reduce deflection under load. In a key aspect of the invention,frame 305 and skid 314 are a single integrated structure, which greatly reduces noise, vibration, and harshness (NVH). The reduction in NVH enhances power output significantly. - The
pump 300 uses the closed loopoil feed system 118, (218) common topumps 100, 200, which is part of an optimized lubrication system which reduces friction between the crosshead and crosshead guides. Low operating lube oil temperatures and high mechanical efficiency increase long term reliability. - It is to be understood that the present invention is not limited to the sole embodiment described above, but encompasses any and all embodiments within the scope of the following claims:
Claims (4)
1. A fracturing pump assembly comprising: a frame having a plurality of bores formed therethrough; and a plurality of crossheads disposed in the plurality of bores, respectively, and adapted to reciprocate therein;
a crankshaft for imparting motive power to a plunger, said plunger situated in the fluid handling end of the pump, whereby rotation of said crankshaft causes reciprocating movement of said plunger which causes fluid to be expelled from the fluid handling end of the pump.
2. The pump assembly of claim 1 wherein said frame is mounted on a skid assembly, said skid assembly attached to said frame at multiple mounting points to distribute vibration.
3. The pump assembly of claim 1 wherein a plurality of pistons are connected to respective rods positioned within said frame, each of said rods coupled to said crankshaft for imparting rotating motive power thereto, said frame separated internally by partitioning walls.
4. The pump assembly of claim 1 wherein said pistons and rods are separated by said partitioning walls.
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US17/144,912 US20220220952A1 (en) | 2021-01-08 | 2021-01-08 | Fracturing pump assembly |
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US17/144,912 US20220220952A1 (en) | 2021-01-08 | 2021-01-08 | Fracturing pump assembly |
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US20220220952A1 true US20220220952A1 (en) | 2022-07-14 |
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US17/144,912 Abandoned US20220220952A1 (en) | 2021-01-08 | 2021-01-08 | Fracturing pump assembly |
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US (1) | US20220220952A1 (en) |
Cited By (1)
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US20220282726A1 (en) * | 2021-03-08 | 2022-09-08 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Plunger pump base and plunger pump device |
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US20160025088A1 (en) * | 2014-07-25 | 2016-01-28 | S.P.M. Flow Control, Inc. | Power end frame assembly for reciprocating pump |
USD759728S1 (en) * | 2015-07-24 | 2016-06-21 | S.P.M. Flow Control, Inc. | Power end frame segment |
US10352321B2 (en) * | 2014-12-22 | 2019-07-16 | S.P.M. Flow Control, Inc. | Reciprocating pump with dual circuit power end lubrication system |
US10781803B2 (en) * | 2017-11-07 | 2020-09-22 | S.P.M. Flow Control, Inc. | Reciprocating pump |
US20200332784A1 (en) * | 2019-04-19 | 2020-10-22 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Double-motor double-pump electric drive fracturing semi-trailer |
US20210140416A1 (en) * | 2019-11-11 | 2021-05-13 | St9 Gas And Oil, Llc | Power end for hydraulic fracturing pump |
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US2056622A (en) * | 1933-04-04 | 1936-10-06 | Sulzer Ag | Multicylinder reciprocating piston machine |
US20100129249A1 (en) * | 2007-05-17 | 2010-05-27 | Dresser Italia S.R.L. | Frame for fluid machines |
US20160025088A1 (en) * | 2014-07-25 | 2016-01-28 | S.P.M. Flow Control, Inc. | Power end frame assembly for reciprocating pump |
US10352321B2 (en) * | 2014-12-22 | 2019-07-16 | S.P.M. Flow Control, Inc. | Reciprocating pump with dual circuit power end lubrication system |
USD759728S1 (en) * | 2015-07-24 | 2016-06-21 | S.P.M. Flow Control, Inc. | Power end frame segment |
US10781803B2 (en) * | 2017-11-07 | 2020-09-22 | S.P.M. Flow Control, Inc. | Reciprocating pump |
US20200332784A1 (en) * | 2019-04-19 | 2020-10-22 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Double-motor double-pump electric drive fracturing semi-trailer |
US20210140416A1 (en) * | 2019-11-11 | 2021-05-13 | St9 Gas And Oil, Llc | Power end for hydraulic fracturing pump |
US11009024B1 (en) * | 2019-11-11 | 2021-05-18 | St9 Gas And Oil, Llc | Power end for hydraulic fracturing pump |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US20220282726A1 (en) * | 2021-03-08 | 2022-09-08 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Plunger pump base and plunger pump device |
US11952999B2 (en) * | 2021-03-08 | 2024-04-09 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Plunger pump base and plunger pump device |
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