CA2331931A1 - The hydraulic pumping unit - Google Patents
The hydraulic pumping unit Download PDFInfo
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- CA2331931A1 CA2331931A1 CA 2331931 CA2331931A CA2331931A1 CA 2331931 A1 CA2331931 A1 CA 2331931A1 CA 2331931 CA2331931 CA 2331931 CA 2331931 A CA2331931 A CA 2331931A CA 2331931 A1 CA2331931 A1 CA 2331931A1
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- piston
- cylinder
- compression chamber
- hydraulic
- pumping unit
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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
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
- F04B47/02—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
A hydraulic-pumping unit is used for the operations of water and oil wells. It consists in a mechanism mounted on the top of the water or oil well. The hydraulic-pumping unit lifts up the sucker rods of the reciprocating pump.
The hydraulic-pumping unit has a hydraulic balance. Others lifting units like conventional pumping units have a loading balance or air balance with the weight of the well fluids and sucker rods. Due to construction of conventional pumping units the sucker rods of the reciprocating pump bear more use per year, more wear off and they could be broken. The Q-rate in barrels per day is direct function of S-stroke in inches and n-strokes per minute. These two parameters are very important to pump up fluids from the bottom well. The conventional pumping units have a relatively short stroke and high speed and the invention of hydraulic-pumping unit has the long stroke and very low speed for the same rate.
The hydraulic-pumping unit represents the unique mechanism with the well-known Pascal's principle.
The hydraulic-pumping increases the sucker rod life service and the pump as well.
The novel of this invention is that it can be manufactured by having a great height to obtain a very low speed.
The hydraulic-pumping unit has a hydraulic balance. Others lifting units like conventional pumping units have a loading balance or air balance with the weight of the well fluids and sucker rods. Due to construction of conventional pumping units the sucker rods of the reciprocating pump bear more use per year, more wear off and they could be broken. The Q-rate in barrels per day is direct function of S-stroke in inches and n-strokes per minute. These two parameters are very important to pump up fluids from the bottom well. The conventional pumping units have a relatively short stroke and high speed and the invention of hydraulic-pumping unit has the long stroke and very low speed for the same rate.
The hydraulic-pumping unit represents the unique mechanism with the well-known Pascal's principle.
The hydraulic-pumping increases the sucker rod life service and the pump as well.
The novel of this invention is that it can be manufactured by having a great height to obtain a very low speed.
Description
2. THE HYDRAULIC PUMPING UNIT
The present invention concerns to pumping lifting units and particularly units for the extraction of the oil-well fluids.
A variety of pumping units is known currently which are capable to lift up well fluids. The actual lifting units are manufactured with relatively short stroke.
The present invention is a unique mechanism that reduces the sucker rod failures.
The hydraulic-pumping unit has a main cylinder 1 Figs.1-4. It has two parts.
In the top part there is a compression chamber 16, which has inner one piston of the double piston 15. The bottom piston has cables 25 for upholding the carrier bar 26 by dice 27. The compression chamber has .a stopper ring 14 inside for stopping the double piston. The bottom side of the compression chamber 16 is sealed by the removable flange 19 (with ten bolts 2.0) and from the top by the sealing flange (on screw threats) 2. The compression chamber 16 is sitting by the outside ring on sitting ring 6 of the cylinder 1. The manometer 8 serves to control the pressure in the cavity 3. A removable cover flanc,~e with 10 bolts 5 seals the topside of the cylinder 1.
The bottom part has a cylinder 28 where the bottom piston of the double piston 15 moves. The cylinder 28 has an outside ring 24, which serves as a centralized device and is stopped with a stopper 21 of cylinder 1, when it is mounted through the bottom part of the cylinder 1. The cylinder 1 has a longitudinal channel 9 for connection or disconnection of the polished rod 32 (Fig 3-4) with the carrier bar in the bottom. The bottom part of the cylinder 1 is mounted on four legs 11. The legs are mounted on cylinder 1 by bolts. The legs have wheels 12 in the bottom side, which move on rails 13. This system allows moving outside the main cylinder 1 for well repairs.
The compression chamber 16 has a pipeline 7 connected to the outside pipes 29 through which the oil is pumped by means of the piston 22 of the compression cylinder 23. The top piston of the double piston of the compression chamber is pushed up by oil.
The compression cylinder 23 has a piston 22. Pipea 29 connect the cylinder 1 and the compression cylinder 23. The air is compressed through the topside of the compression cylinder 23. The system is filled it up with oil.
Pascal's law states that when there is an increase in pressure at any point in a confined fluid, there is any equal increase at every other point in the container.
Hydraulic systems use an incompressible fluid, such as oil or water, to transmit forces from one location to another within the fluid.
Pascal's law allows forces to be multiplied. For example the cylinder on the left shows a cross-section area of 1 square inch, while the cylinder on the right shows a cross-section area of 10 square inches. The cylinder an the left has a weight (force} on 1 pound acting downward on the piston, which lowers the fluid inches. As a result of this force, the piston on the right lifts a 10 pound weight a distance of 1 inch.
The 1 pound load on the 1 square inch area causes an increase in pressure on the fluid in the system. This pressure is distributed Equally throughout and acts on every square inch of the 10 square inch area of tlhe large piston. As a result, the larger piston lifts up a 10 pound weight. The larger the cross-section area of the second piston, the larger the mechanical advantage, and the more weight it lifts.
The present invention concerns to pumping lifting units and particularly units for the extraction of the oil-well fluids.
A variety of pumping units is known currently which are capable to lift up well fluids. The actual lifting units are manufactured with relatively short stroke.
The present invention is a unique mechanism that reduces the sucker rod failures.
The hydraulic-pumping unit has a main cylinder 1 Figs.1-4. It has two parts.
In the top part there is a compression chamber 16, which has inner one piston of the double piston 15. The bottom piston has cables 25 for upholding the carrier bar 26 by dice 27. The compression chamber has .a stopper ring 14 inside for stopping the double piston. The bottom side of the compression chamber 16 is sealed by the removable flange 19 (with ten bolts 2.0) and from the top by the sealing flange (on screw threats) 2. The compression chamber 16 is sitting by the outside ring on sitting ring 6 of the cylinder 1. The manometer 8 serves to control the pressure in the cavity 3. A removable cover flanc,~e with 10 bolts 5 seals the topside of the cylinder 1.
The bottom part has a cylinder 28 where the bottom piston of the double piston 15 moves. The cylinder 28 has an outside ring 24, which serves as a centralized device and is stopped with a stopper 21 of cylinder 1, when it is mounted through the bottom part of the cylinder 1. The cylinder 1 has a longitudinal channel 9 for connection or disconnection of the polished rod 32 (Fig 3-4) with the carrier bar in the bottom. The bottom part of the cylinder 1 is mounted on four legs 11. The legs are mounted on cylinder 1 by bolts. The legs have wheels 12 in the bottom side, which move on rails 13. This system allows moving outside the main cylinder 1 for well repairs.
The compression chamber 16 has a pipeline 7 connected to the outside pipes 29 through which the oil is pumped by means of the piston 22 of the compression cylinder 23. The top piston of the double piston of the compression chamber is pushed up by oil.
The compression cylinder 23 has a piston 22. Pipea 29 connect the cylinder 1 and the compression cylinder 23. The air is compressed through the topside of the compression cylinder 23. The system is filled it up with oil.
Pascal's law states that when there is an increase in pressure at any point in a confined fluid, there is any equal increase at every other point in the container.
Hydraulic systems use an incompressible fluid, such as oil or water, to transmit forces from one location to another within the fluid.
Pascal's law allows forces to be multiplied. For example the cylinder on the left shows a cross-section area of 1 square inch, while the cylinder on the right shows a cross-section area of 10 square inches. The cylinder an the left has a weight (force} on 1 pound acting downward on the piston, which lowers the fluid inches. As a result of this force, the piston on the right lifts a 10 pound weight a distance of 1 inch.
The 1 pound load on the 1 square inch area causes an increase in pressure on the fluid in the system. This pressure is distributed Equally throughout and acts on every square inch of the 10 square inch area of tlhe large piston. As a result, the larger piston lifts up a 10 pound weight. The larger the cross-section area of the second piston, the larger the mechanical advantage, and the more weight it lifts.
The formulas that relate to this are shown below:
P1 = P2 (since the pressures are equal throughout).
Since pressure equals force per unit area, then it follows that F1/A1 = F21A2 It can be shown by substitution that the values shown above are correct: 1 pound I 1 square inches = 10 pounds 1 10 spuare inches Because the volume of fluid pushed down on the leit side equals the volume of fluid that is lifted up on the right side, the following formula is also true.
V1 = V2 by substitution, A1 D1 = A2 D2 ~ A = cross sectional area ~ D = the distance moved or A11A2= D2/D1 The big force is the weight (F2) of the pumping well fluids on the Cross Section Square of the piston 15 (A2) of compression chamber' 16.
The another force is a compressed air (F1), which acts on the Cross Section Square (A1) of a piston of the compression cylinder. Then:
F11A1 = F2IA2 F1 = F2 x A1 I A2 When the double piston acts upwards, the manometer 31 installed on the top of the compression cylinder 23 gives the electrical signal to the valve (not shown).
The valve cuts the air pass into the compression cylinder 23 from the compressor (not shown). During the lifting process of the double piston 15, the release valve 30 of the compression cylinder 23 is maintained closed all the time. When the piston 22 of the compression cylinder 23 is on the bottom, the release valve opens to release the air inside. The process is a reciprocating process, thus the well fluids are pumped to the ground surface by the reciprocating pump in the well bottom (not shown).
The double piston moves up and down. The bottom piston of the double piston has hanged by cables a carrier bar 26. The carrier bar makes the reciprocating movement to pump a well fluids from the bottom by the sucker rods (the polished bar 32 is the topside of sucker rods) and the reciprocating pump (not shown). The sucker rods are connected to the ~aiston of reciprocating pump in the oil well and to the polished bar 32 upholding by the carrier bar 26.
The flowing rate (Q) of fluids depends directly on the pumping length and the pumping speed. It means Q (Barrels per day) is function of (S) (inches) and (n) (amount of pumping strokes).
in the conventional pumping unit with the reciprocating pump, the multiplication of (S x n)= 2,016 when S=168 in and n=12. Here (S.) is too short because the construction of pumping unit doesn't allow big length;>. Therefore the speed (n) is too high. Then in a year we have n= 12 x 60 x 24 x 365 =6'307,200 strokes per year. This high speed allows wearing off the sucker rods and it can break it.
The novel of this invention is that the (S) could be 672 inches or more. If the multiplication of (S x n)=2,016=672 x n, then n=3. For the same rate of the reciprocating pump with the big difference that it has n= 3 x 60 x 24 x365=
1'576,800 strokes per year. This invention allows low speed of the sucker rods and does not wears off the materials compromised in it. It means a reduction of the work-over numbers and more production of well oil or water.
The porpoise of this invention is to increase the life service of the sucker rods and avoid the quantity of well repairs.
In the Fig. 1 shows the cylinder 1 of the hydraulic pmmping unit. The cylinder has the compression chamber 16. The compression chamber moves the top piston of the double piston 15. The cylinder 1 is c;onnected to pipes 29. The compression chamber 16 has a pipeline 7.
Under the compression chamber 16 and in the bottom piston of the double piston 15 are two cables 25 which maintain hanging a carrier bar 26. The cables 25 have dice 27 in their extremes (in the top over bottom piston and in the bottom under the carrier bar). The carrier bar 26 moves with a reciprocating movement (up down up) a string of sucker rods 32 (Figs 3-4). The cylinder 1 is mounted on base ring flange 10. It has four legs 11. Each leg has a wheel 12, and these wheels may move on rails 13.
The compression chamber 16 is fixed to the cylinder 1 by the ring 17 and the top-sealing flange 2. The compression chamber 16 has a cavity between stopper ring 14 and sealing flange 18, which is filled up one third of it with mercury. The mercury doesn't allow passing of oil to the bottom through the sealing flange 18.
The sealing flanges 18 and 19 have an aperture in the middle, which allows passing of the piston rod of the double piston 15.
The top sealing flange 2 is mounted on the fop of the compression chamber 16 by screw threats. The top sealing flange 2 has an aperture in the middle, which allows the passing of air in to the top cavity 3 of the cylinder 1. The another sealing removable flange 4 is mounted on the top of cylinder 1 and 10 bolts 5 fix it.
The oil is pumped into compression chamber 16 under the top piston of the double piston 15. The double piston 15 has two piston top and bottom. They are connected themselves by connecting piston rod. The bottom piston moves through the cylinder 28. The cylinder 28 is fixed with t:he sitting stopper 24 by top and with ring base flange 10 by bottom.
The compression cylinder 23 is mounted on a base. It is filled up with oil. It a piston 22 has in the top. The release valve 30 is mounted on top of the compression cylinder 23. The release valve serves to release the air when the piston is down.
The manometer 31 operates releasing the release valve 30 when the pressure in the compression cylinder 23 is high.
The Fig.1 shows when the double piston 15 is acting upwards. Here the pressure of the pumped oil pushes on the top piston of the double piston to go up. The weight of the well fluids could be very high and aci:s on the surface of the top piston of the double piston 15 by means of connecting piston rod. The bottom piston of the double piston 15 moves up and it pullls up the carrier bar 26 by cables 25. The top part of the sucker rods is the polished rod 29 and it is hanging in the carrier bar by a clamp 33 Figs.3-4. The compressed air pushes down the piston 22 of the compression cylinder 23. The air is compressed through the top of the compression cylinder 23 by the compressor (not shown).
When the double piston 15 is up, then the release valve 30 releases the air, thus the double piston 15 is going down by the well fluid weight.
The hydraulic pumping unit has a cylinder 1 with an outside diameter of 24 in, inside diameter 23.8 in, and length L=78 Feet. The cylinder is closed from above with the removal seating flange 4 diameter 26 in and I_=3 in. It has 10 bolts.
The compression chamber has an outside diameter of ~=21 in, inside diameter d=20 in, and length L=38 Feet. It is fixed with the cyliinder 1 with its own top and bottom flanges. The chamber of the compression 16 from above is closed by the flange 2 diameter 23.8 in, and thickness 2 in and from the bottom with the removal flange 19 has an outside diameter of 23.8 in, an inside diameter of 2 in, and thickness 3 in. The bottom side of the compression chamber 16 has a sitting ring 17, which serves the stopper for the top piston of the double piston 15.
The sitting ring has a diameter of 23.7 in, and thickness 3 in. The sealing flange seals the bottom side of the compression chamber 1 n. The sealing flange 19 has an outside diameter of 23.8 in and inside diameter of 2 in with thickness 3 in. Ten bolts 20 fix it.
The removable sealing flange 18 is fixed inside of the compression chamber 16 by an inside stopper. It has outside diameter of 20 in, inside diameter 2 in and thickness 3 in. It is fixed on 6 inches from the bottom edge of the compression chamber 16 on a stopper. Between the sealing reimovable flange 18 and the bottom removable sealing flange 19 is installed a stuffing materiaP. This stuffing material is compressed with the bottom removal sealing flange 19 by ten bolts and it doesn't allow leaking oil from the cavity with mercury.
The double piston has the following sizes: the top piston has a diameter of 20 in, and length of 3 Feet. The connecting piston rod has a diameter of 2 in, and length of 36 Feet. The bottom piston has a diameter of 20 in, and a length of Feet.
The pipeline 7 serves as connection between the outside cylinder 1 and the compression chamber 16 and as passageway of the compressed oil. It is fixed by outside threats. The pipeline 7 has 3 in of diameter and length 6 in. The outside end is connected with the pipeline 29 (diameter 3 in) Figs. 3-4. In the bottom side of the cylinder 1 is mounted another cylinder 28. In it the bottom piston of the double piston 15 is moved. The cylinder 28 has the following sizes:
outside diameter 21 in, inside diameter 20 in, and length 35 Feet. It is mounted on the stopper ring 24, which is stopped by the stopper ring 21 of the cylinder 1 and from the bottom it is mounted on the sitting rirng 10 of the cylinder 1.
The cylinder 1 has a longitudinal channel 9 of 15 in of width and 32 Feet of height.
This longitudinal channel serves to get off the clamp 33 of the polished rod 32 for future well repairs. When the polished rod (top part of sucker rods) is dismounted from the carrier bar 26 then, the hydraulic pumping unit can be pushed outside ,, from the well. The cylinder 1 is mounted on four legs 'I 1. Each foot has a length of 1 Feet. At the base of each foot, a wheel is mou~~nted of diameter 10 in.
The wheels can be rolled on rails 13.
The compression cylinder 23 has a diameter of 15 in and length of 74 Feet. It is mounted on a base of length 2 Feet and a diameter of 20 in. The piston 22 has a diameter 15 in, and length 4 Feet.
From above Pascal's law:
F1/A1 = F21A2 A11A2= D21D1 The diameter of the compresion cylinder 19 is 15 in, then a cross-section area=175.5 in2.
The diameter of the compression chamber 16 is 18 in, (20 in - 2 in of connecting piston rod) , then a cross-section area=252.7 in2.
Then the relation A1/A2=0.694 If F2 ( force of well fluid weigth)=14,000 Ibs then:
F1= A1 x F2/A2=9,723 Ib:
The needed pressure to push down the piston 22 is:
P1=F1/A1=I 175,5 =55.4 p:~ii
P1 = P2 (since the pressures are equal throughout).
Since pressure equals force per unit area, then it follows that F1/A1 = F21A2 It can be shown by substitution that the values shown above are correct: 1 pound I 1 square inches = 10 pounds 1 10 spuare inches Because the volume of fluid pushed down on the leit side equals the volume of fluid that is lifted up on the right side, the following formula is also true.
V1 = V2 by substitution, A1 D1 = A2 D2 ~ A = cross sectional area ~ D = the distance moved or A11A2= D2/D1 The big force is the weight (F2) of the pumping well fluids on the Cross Section Square of the piston 15 (A2) of compression chamber' 16.
The another force is a compressed air (F1), which acts on the Cross Section Square (A1) of a piston of the compression cylinder. Then:
F11A1 = F2IA2 F1 = F2 x A1 I A2 When the double piston acts upwards, the manometer 31 installed on the top of the compression cylinder 23 gives the electrical signal to the valve (not shown).
The valve cuts the air pass into the compression cylinder 23 from the compressor (not shown). During the lifting process of the double piston 15, the release valve 30 of the compression cylinder 23 is maintained closed all the time. When the piston 22 of the compression cylinder 23 is on the bottom, the release valve opens to release the air inside. The process is a reciprocating process, thus the well fluids are pumped to the ground surface by the reciprocating pump in the well bottom (not shown).
The double piston moves up and down. The bottom piston of the double piston has hanged by cables a carrier bar 26. The carrier bar makes the reciprocating movement to pump a well fluids from the bottom by the sucker rods (the polished bar 32 is the topside of sucker rods) and the reciprocating pump (not shown). The sucker rods are connected to the ~aiston of reciprocating pump in the oil well and to the polished bar 32 upholding by the carrier bar 26.
The flowing rate (Q) of fluids depends directly on the pumping length and the pumping speed. It means Q (Barrels per day) is function of (S) (inches) and (n) (amount of pumping strokes).
in the conventional pumping unit with the reciprocating pump, the multiplication of (S x n)= 2,016 when S=168 in and n=12. Here (S.) is too short because the construction of pumping unit doesn't allow big length;>. Therefore the speed (n) is too high. Then in a year we have n= 12 x 60 x 24 x 365 =6'307,200 strokes per year. This high speed allows wearing off the sucker rods and it can break it.
The novel of this invention is that the (S) could be 672 inches or more. If the multiplication of (S x n)=2,016=672 x n, then n=3. For the same rate of the reciprocating pump with the big difference that it has n= 3 x 60 x 24 x365=
1'576,800 strokes per year. This invention allows low speed of the sucker rods and does not wears off the materials compromised in it. It means a reduction of the work-over numbers and more production of well oil or water.
The porpoise of this invention is to increase the life service of the sucker rods and avoid the quantity of well repairs.
In the Fig. 1 shows the cylinder 1 of the hydraulic pmmping unit. The cylinder has the compression chamber 16. The compression chamber moves the top piston of the double piston 15. The cylinder 1 is c;onnected to pipes 29. The compression chamber 16 has a pipeline 7.
Under the compression chamber 16 and in the bottom piston of the double piston 15 are two cables 25 which maintain hanging a carrier bar 26. The cables 25 have dice 27 in their extremes (in the top over bottom piston and in the bottom under the carrier bar). The carrier bar 26 moves with a reciprocating movement (up down up) a string of sucker rods 32 (Figs 3-4). The cylinder 1 is mounted on base ring flange 10. It has four legs 11. Each leg has a wheel 12, and these wheels may move on rails 13.
The compression chamber 16 is fixed to the cylinder 1 by the ring 17 and the top-sealing flange 2. The compression chamber 16 has a cavity between stopper ring 14 and sealing flange 18, which is filled up one third of it with mercury. The mercury doesn't allow passing of oil to the bottom through the sealing flange 18.
The sealing flanges 18 and 19 have an aperture in the middle, which allows passing of the piston rod of the double piston 15.
The top sealing flange 2 is mounted on the fop of the compression chamber 16 by screw threats. The top sealing flange 2 has an aperture in the middle, which allows the passing of air in to the top cavity 3 of the cylinder 1. The another sealing removable flange 4 is mounted on the top of cylinder 1 and 10 bolts 5 fix it.
The oil is pumped into compression chamber 16 under the top piston of the double piston 15. The double piston 15 has two piston top and bottom. They are connected themselves by connecting piston rod. The bottom piston moves through the cylinder 28. The cylinder 28 is fixed with t:he sitting stopper 24 by top and with ring base flange 10 by bottom.
The compression cylinder 23 is mounted on a base. It is filled up with oil. It a piston 22 has in the top. The release valve 30 is mounted on top of the compression cylinder 23. The release valve serves to release the air when the piston is down.
The manometer 31 operates releasing the release valve 30 when the pressure in the compression cylinder 23 is high.
The Fig.1 shows when the double piston 15 is acting upwards. Here the pressure of the pumped oil pushes on the top piston of the double piston to go up. The weight of the well fluids could be very high and aci:s on the surface of the top piston of the double piston 15 by means of connecting piston rod. The bottom piston of the double piston 15 moves up and it pullls up the carrier bar 26 by cables 25. The top part of the sucker rods is the polished rod 29 and it is hanging in the carrier bar by a clamp 33 Figs.3-4. The compressed air pushes down the piston 22 of the compression cylinder 23. The air is compressed through the top of the compression cylinder 23 by the compressor (not shown).
When the double piston 15 is up, then the release valve 30 releases the air, thus the double piston 15 is going down by the well fluid weight.
The hydraulic pumping unit has a cylinder 1 with an outside diameter of 24 in, inside diameter 23.8 in, and length L=78 Feet. The cylinder is closed from above with the removal seating flange 4 diameter 26 in and I_=3 in. It has 10 bolts.
The compression chamber has an outside diameter of ~=21 in, inside diameter d=20 in, and length L=38 Feet. It is fixed with the cyliinder 1 with its own top and bottom flanges. The chamber of the compression 16 from above is closed by the flange 2 diameter 23.8 in, and thickness 2 in and from the bottom with the removal flange 19 has an outside diameter of 23.8 in, an inside diameter of 2 in, and thickness 3 in. The bottom side of the compression chamber 16 has a sitting ring 17, which serves the stopper for the top piston of the double piston 15.
The sitting ring has a diameter of 23.7 in, and thickness 3 in. The sealing flange seals the bottom side of the compression chamber 1 n. The sealing flange 19 has an outside diameter of 23.8 in and inside diameter of 2 in with thickness 3 in. Ten bolts 20 fix it.
The removable sealing flange 18 is fixed inside of the compression chamber 16 by an inside stopper. It has outside diameter of 20 in, inside diameter 2 in and thickness 3 in. It is fixed on 6 inches from the bottom edge of the compression chamber 16 on a stopper. Between the sealing reimovable flange 18 and the bottom removable sealing flange 19 is installed a stuffing materiaP. This stuffing material is compressed with the bottom removal sealing flange 19 by ten bolts and it doesn't allow leaking oil from the cavity with mercury.
The double piston has the following sizes: the top piston has a diameter of 20 in, and length of 3 Feet. The connecting piston rod has a diameter of 2 in, and length of 36 Feet. The bottom piston has a diameter of 20 in, and a length of Feet.
The pipeline 7 serves as connection between the outside cylinder 1 and the compression chamber 16 and as passageway of the compressed oil. It is fixed by outside threats. The pipeline 7 has 3 in of diameter and length 6 in. The outside end is connected with the pipeline 29 (diameter 3 in) Figs. 3-4. In the bottom side of the cylinder 1 is mounted another cylinder 28. In it the bottom piston of the double piston 15 is moved. The cylinder 28 has the following sizes:
outside diameter 21 in, inside diameter 20 in, and length 35 Feet. It is mounted on the stopper ring 24, which is stopped by the stopper ring 21 of the cylinder 1 and from the bottom it is mounted on the sitting rirng 10 of the cylinder 1.
The cylinder 1 has a longitudinal channel 9 of 15 in of width and 32 Feet of height.
This longitudinal channel serves to get off the clamp 33 of the polished rod 32 for future well repairs. When the polished rod (top part of sucker rods) is dismounted from the carrier bar 26 then, the hydraulic pumping unit can be pushed outside ,, from the well. The cylinder 1 is mounted on four legs 'I 1. Each foot has a length of 1 Feet. At the base of each foot, a wheel is mou~~nted of diameter 10 in.
The wheels can be rolled on rails 13.
The compression cylinder 23 has a diameter of 15 in and length of 74 Feet. It is mounted on a base of length 2 Feet and a diameter of 20 in. The piston 22 has a diameter 15 in, and length 4 Feet.
From above Pascal's law:
F1/A1 = F21A2 A11A2= D21D1 The diameter of the compresion cylinder 19 is 15 in, then a cross-section area=175.5 in2.
The diameter of the compression chamber 16 is 18 in, (20 in - 2 in of connecting piston rod) , then a cross-section area=252.7 in2.
Then the relation A1/A2=0.694 If F2 ( force of well fluid weigth)=14,000 Ibs then:
F1= A1 x F2/A2=9,723 Ib:
The needed pressure to push down the piston 22 is:
P1=F1/A1=I 175,5 =55.4 p:~ii
Claims (11)
1. A hydraulic-pumping unit A hydraulic pumping unit having a cylinder.
A cylinder having, a compression chamber, an intake pipe, a double piston, a bottom sealing removable flange, top removable mange, a bottom cylinder, a compression cylinder, a piston, pipes.
The hydraulic-pumping unit has a main cylinder. It has two parts. In the top part there is a compression chamber, which has one piston inside of the double piston. The bottom piston has cables for upholding the carrier bar by dice. The compression chamber has a stopper ring inside for stopping the double piston. The bottom side of the compression chamber is sealed by the removable flange (with ten bolts) and from the top by sealing flange (on screw threats). The compression chamber is sitting by an outside ring on a inner sitting ring of the cylinder. A manometer serves to control the pressure in the top cavity of the cylinder. A removable cover flange with bolt seals the topside of the main cylinder. The bottom side of the main cylinder has an inner cylinder where the bottom piston of the double piston moves. The inner cylinder has a outside ring, which serves as a centralized device and stopper.
It is stopped with an inner bottom stopper of cylinder 1, when the inner bottom cylinder is mounted through the bottom side of the main cylinder. The main cylinder has a longitudinal channel in the bottom side for connection or disconnection of the polished rod with the carrier bar. The bottom side of main cylinder is based on four legs. The legs are mounted on a main cylinder by bolts. The legs have wheels in the bottom side, which move on rails. This system allows moving outside the main cylinder for well repairs.
The compression chamber has a pipe connected to the outside pipes. The piston of the compression cylinder pumps the oil. A top piston of the double piston of a compression chamber is pushing up by oil.
The compression cylinder has a piston. The pipes connect the main cylinder and the compression cylinder. The air is compressed through the topside of the compression cylinder by a compressor (not shown). The system is filled up with oil.
A main cylinder has an aperture in the bottom right side to screw up the pipe.
A top piston of the double piston surrounds the compression chamber.
Having said double piston is manufactured solid with the piston rod in the middle.
A sealing fluid is inside of the said compression chamber with high density and doesn't mix with the inlet oil. The mercury could use like the sealing fluid.
It will be understood that the sealing fluid covers and protects the surface of the connecting piston rod of double piston always. The sealing fluid is trapped in a compression chamber and cannot leave it.
An inner sitting removable flange of the compression chamber sits on a stopper of the compression chamber.
A bottom sealing removable flange to close the bottom side of the compression chamber.
A cylinder having, a compression chamber, an intake pipe, a double piston, a bottom sealing removable flange, top removable mange, a bottom cylinder, a compression cylinder, a piston, pipes.
The hydraulic-pumping unit has a main cylinder. It has two parts. In the top part there is a compression chamber, which has one piston inside of the double piston. The bottom piston has cables for upholding the carrier bar by dice. The compression chamber has a stopper ring inside for stopping the double piston. The bottom side of the compression chamber is sealed by the removable flange (with ten bolts) and from the top by sealing flange (on screw threats). The compression chamber is sitting by an outside ring on a inner sitting ring of the cylinder. A manometer serves to control the pressure in the top cavity of the cylinder. A removable cover flange with bolt seals the topside of the main cylinder. The bottom side of the main cylinder has an inner cylinder where the bottom piston of the double piston moves. The inner cylinder has a outside ring, which serves as a centralized device and stopper.
It is stopped with an inner bottom stopper of cylinder 1, when the inner bottom cylinder is mounted through the bottom side of the main cylinder. The main cylinder has a longitudinal channel in the bottom side for connection or disconnection of the polished rod with the carrier bar. The bottom side of main cylinder is based on four legs. The legs are mounted on a main cylinder by bolts. The legs have wheels in the bottom side, which move on rails. This system allows moving outside the main cylinder for well repairs.
The compression chamber has a pipe connected to the outside pipes. The piston of the compression cylinder pumps the oil. A top piston of the double piston of a compression chamber is pushing up by oil.
The compression cylinder has a piston. The pipes connect the main cylinder and the compression cylinder. The air is compressed through the topside of the compression cylinder by a compressor (not shown). The system is filled up with oil.
A main cylinder has an aperture in the bottom right side to screw up the pipe.
A top piston of the double piston surrounds the compression chamber.
Having said double piston is manufactured solid with the piston rod in the middle.
A sealing fluid is inside of the said compression chamber with high density and doesn't mix with the inlet oil. The mercury could use like the sealing fluid.
It will be understood that the sealing fluid covers and protects the surface of the connecting piston rod of double piston always. The sealing fluid is trapped in a compression chamber and cannot leave it.
An inner sitting removable flange of the compression chamber sits on a stopper of the compression chamber.
A bottom sealing removable flange to close the bottom side of the compression chamber.
2. A hydraulic pumping unit wherein said double piston is manufactured solid with the connecting shaft.
3. A double piston according to claim 2 wherein said double piston has two pistons connected by the rod and moves (reciprocating movement) because through the bottom side of tap piston is pushed by injected air through the pipe.
4. A piston and air from the compression cylinder compress a said top piston of the double piston of the hydraulic pumping unit according to claim 1 wherein works by oil.
5. A mentioned compression chamber according to claim 1 wherein said stuffing material to avoid passing of oil outside. The said stuffing material is compressed by sitting removable flange and cover removable flange by bolts.
6. A said compression chamber according to claim 1 wherein said sealing removable flanges close it from the top and bottom sides.
7. A bottom piston of the double piston serves as lifter of a carrier bar by cables, which are fixed by dice.
8. A said carrier bar is connected with the polished bar of the sucker rods by a clamp according to claim 1.
9. A said compression cylinder according to claim 1 has inner piston, which pushes down and then, into the compression chamber of the main cylinder a oil through the pipes. The inner piston is compressed by air that is compressed by compressor (not shown) from outside.
10. A said hydraulic pumping unit according to claims 1-9 is a suitable mechanism to reduce of well repairs because the height and low speed allow to increase the work service of the sucker rods. The mentioned hydraulic pumping unit comprises:
A surrounding cylinder;
A double piston;
A compression chamber;
A carrier bar;
A bottom cylinder wherein the bottom piston of the double piston slices;
A compression cylinder with inner piston;
An intake pipe is connected with the pipes.
A surrounding cylinder;
A double piston;
A compression chamber;
A carrier bar;
A bottom cylinder wherein the bottom piston of the double piston slices;
A compression cylinder with inner piston;
An intake pipe is connected with the pipes.
11. The gas-lift-reciprocating pump is a novel or unique installation to increase the life service of the sucker rods. The reduction of well repairs conducts to get more oil and less waste of money.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2331931 CA2331931A1 (en) | 2001-01-23 | 2001-01-23 | The hydraulic pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2331931 CA2331931A1 (en) | 2001-01-23 | 2001-01-23 | The hydraulic pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2331931A1 true CA2331931A1 (en) | 2002-07-23 |
Family
ID=4168140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2331931 Abandoned CA2331931A1 (en) | 2001-01-23 | 2001-01-23 | The hydraulic pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2331931A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072218A (en) * | 2010-11-15 | 2011-05-25 | 昆山市汇新电气机械有限公司 | Double-piston portal cylinder |
| CN102108847A (en) * | 2011-01-17 | 2011-06-29 | 濮阳市威克瑞石油机械制造有限公司 | Dual well balance type hydraulic pumping unit and working method thereof |
| CN105643189A (en) * | 2016-01-05 | 2016-06-08 | 四川东大恒泰电气有限责任公司 | Disassembly tool of GE motor flange |
| CN108301810A (en) * | 2018-03-20 | 2018-07-20 | 阜新市石油工具厂 | Direct-connected well head support hydraulic pressure petroleum lifting device |
| US10072487B2 (en) | 2016-09-22 | 2018-09-11 | I-Jack Technologies Incorporated | Lift apparatus for driving a downhole reciprocating pump |
| US10087924B2 (en) | 2016-11-14 | 2018-10-02 | I-Jack Technologies Incorporated | Gas compressor and system and method for gas compressing |
| US10544783B2 (en) | 2016-11-14 | 2020-01-28 | I-Jack Technologies Incorporated | Gas compressor and system and method for gas compressing |
| US11519403B1 (en) | 2021-09-23 | 2022-12-06 | I-Jack Technologies Incorporated | Compressor for pumping fluid having check valves aligned with fluid ports |
| US11952995B2 (en) | 2020-02-28 | 2024-04-09 | I-Jack Technologies Incorporated | Multi-phase fluid pump system |
-
2001
- 2001-01-23 CA CA 2331931 patent/CA2331931A1/en not_active Abandoned
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072218A (en) * | 2010-11-15 | 2011-05-25 | 昆山市汇新电气机械有限公司 | Double-piston portal cylinder |
| CN102108847A (en) * | 2011-01-17 | 2011-06-29 | 濮阳市威克瑞石油机械制造有限公司 | Dual well balance type hydraulic pumping unit and working method thereof |
| CN105643189A (en) * | 2016-01-05 | 2016-06-08 | 四川东大恒泰电气有限责任公司 | Disassembly tool of GE motor flange |
| US10352138B2 (en) | 2016-09-22 | 2019-07-16 | I-Jack Technologies Incorporated | Lift apparatus for driving a downhole reciprocating pump |
| US10072487B2 (en) | 2016-09-22 | 2018-09-11 | I-Jack Technologies Incorporated | Lift apparatus for driving a downhole reciprocating pump |
| US11162491B2 (en) | 2016-11-14 | 2021-11-02 | I-Jack Technologies Incorporated | Gas compressor and system and method for gas compressing |
| US10167857B2 (en) | 2016-11-14 | 2019-01-01 | I-Jack Technologies Incorporated | Gas compressor and system and method for gas compressing |
| US10087924B2 (en) | 2016-11-14 | 2018-10-02 | I-Jack Technologies Incorporated | Gas compressor and system and method for gas compressing |
| US10544783B2 (en) | 2016-11-14 | 2020-01-28 | I-Jack Technologies Incorporated | Gas compressor and system and method for gas compressing |
| US11242847B2 (en) | 2016-11-14 | 2022-02-08 | I-Jack Technologies Incorporated | Gas compressor and system and method for gas compressing |
| US11339778B2 (en) | 2016-11-14 | 2022-05-24 | I-Jack Technologies Incorporated | Gas compressor and system and method for gas compressing |
| US11982269B2 (en) | 2016-11-14 | 2024-05-14 | I-Jack Technologies Incorporated | Gas compressor and system and method for gas compressing |
| CN108301810A (en) * | 2018-03-20 | 2018-07-20 | 阜新市石油工具厂 | Direct-connected well head support hydraulic pressure petroleum lifting device |
| US11952995B2 (en) | 2020-02-28 | 2024-04-09 | I-Jack Technologies Incorporated | Multi-phase fluid pump system |
| US11519403B1 (en) | 2021-09-23 | 2022-12-06 | I-Jack Technologies Incorporated | Compressor for pumping fluid having check valves aligned with fluid ports |
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