WO2022093066A1 - Installation d'extraction de pétrole immergée - Google Patents
Installation d'extraction de pétrole immergée Download PDFInfo
- Publication number
- WO2022093066A1 WO2022093066A1 PCT/RU2021/000452 RU2021000452W WO2022093066A1 WO 2022093066 A1 WO2022093066 A1 WO 2022093066A1 RU 2021000452 W RU2021000452 W RU 2021000452W WO 2022093066 A1 WO2022093066 A1 WO 2022093066A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rod
- oil
- drive
- plunger pump
- screw
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 239000012528 membrane Substances 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 abstract description 8
- 125000004122 cyclic group Chemical group 0.000 abstract description 3
- 230000010349 pulsation Effects 0.000 abstract description 3
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 37
- 230000033001 locomotion Effects 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- 230000009347 mechanical transmission Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
Definitions
- the invention relates to oil-producing equipment and can be used to lift well fluid.
- Known submersible pumping unit containing a pumping unit, which includes a housing, an elastic shell, a reversible motor, the drive shaft of which is connected to the transmission screw of the rolling screw-nut, which is in a movable connection with the housing and connected to the plunger pump drive rod.
- the rod is sealed in the body and connected to the nut by means of a hollow cylindrical rod, enclosing the screw and entering into a movable connection with it, and the internal cavities of the body and the elastic shell are filled with oil.
- the outer surface of the shell communicates with the cavity of the well, and dampers in the form of springs are installed on the screw and the hollow rod.
- the reversible motor used in this design is multi-pole (low-speed), the main disadvantages of which are the complexity of the design and the decrease in the reliability of its operation. Switching the direction of rotation of the screw is carried out by a control station, which has a rather high cost.
- the fuzzy operation of the engine reverse due to the variable viscosity of the oil fluid reduces the efficiency of the installation, and also reduces the reliability of its operation.
- Increasing the accuracy of determining the time of switching the engine to reverse motion requires additional telemetry, which also leads to an increase in the cost of the installation.
- the use of a hydromechanical drive of a special design makes it possible.
- a submersible pumping unit comprising a plunger pump, an electric motor with hydraulic protection and a hydromechanical drive, including a mechanical transmission of the "screw-nut” type connected to the plunger pump, a hydraulic unit, including a hydraulic motor, connected through a hydraulic distributor fixed to it, which regulates the direction of rotation of the screw of the mechanical transmission, with an oil pump, and an elastic membrane, which is a compensator for the volumetric expansion of the oil, while the upper part of the screw has a sliding support that freely moves along the inner diameter of the hollow piston.
- the hydromechanical drive cavity is filled with hydraulic oil, while the hollow rod is sealed in the drive housing, thereby limiting the oil-filled volume within the housing.
- the elastic membrane is a compensator for changes in the oil-filled volume caused by the reciprocating movement of the hollow rod.
- the membrane is compressed, when the stem returns, it is stretched.
- Another disadvantage of the known device is the absence of damping devices that allow the hollow rod to slow down in the extreme positions of its stroke. The absence of damping devices leads to an increased cyclic load on the dynamic components of the mechanical part of the hydromechanical drive, which, in turn, leads to a decrease in its resource indicators and drive failure.
- the task to be solved by the claimed invention is to increase the reliability of the operation of a submersible oil-producing installation by increasing the oil-filled volume of the hydromechanical drive, reducing the pulsations of the elastic membrane, and also reducing the cyclic load on the dynamic components of the roller screw drive.
- a submersible pumping unit containing a submersible electric motor with hydraulic protection, a plunger pump and a drive, including an oil-filled housing with a screw-nut-type roller-screw transmission placed in it, a hollow rod enclosing the screw of the roller-screw transmission and connected to the plunger pump rod, a hydraulic unit, including a hydraulic motor connected to the roller-screw drive screw and connected through a hydraulic distributor to the oil pump, on the output shaft of which an oil volume expansion compensator is installed, made in the form of an elastic membrane, the plunger pump housing is made with the possibility of accommodating there is a hollow drive rod in it for the length of its stroke, and the hollow drive rod is made with perforation, and the plunger pump rod is sealed in the plunger pump housing, while the drive is equipped with hydromechanical dampers, one of which is rigidly fastened to the lower end surface of the roller screw drive nut cottages, and the other the damper is installed between the oil-filled housing and the hollow
- the perforation on the hollow rod is made from the side of the zone of connection of the hollow rod with the plunger pump rod, and the plunger pump rod is sealed in the plunger pump housing by means of a sealing sleeve.
- the execution of the plunger pump housing with the possibility of placing a hollow rod of a hydromechanical drive in it for the entire length of its working stroke, sealing the plunger pump rod in the plunger pump housing and making a hollow rod with perforation, provides an increase in the oil-filled volume, which in this case is limited by the place of sealing of the plunger pump rod in the plunger pump housing. Filling with oil of this volume is carried out through the perforation of the hollow rod.
- the seal of the piston pump rod in comparison with the seal of the hollow rod of the drive, makes it possible to reduce leakages that occur during resource wear, since the diameter of the plunger pump rod is smaller than the diameter of the hollow rod.
- An increase in the oil-filled volume reduces the temperature of the working oil, which increases the service life of the hydromechanical drive, and also reduces the pulsations of the elastic membrane, which reduces its wear.
- hydromechanical dampers makes it possible to smooth out shock loads in the extreme positions of the roller screw drive, thereby preventing the destruction of its threaded part.
- Figure 1 shows a diagram of a submersible installation with a plunger pump; figure 2 - enlarged place I figure 1; Fig.3 - place II of figure 1, figure 4 - place III of figure 1, figure 5 - place IV of figure 1.
- the submersible oil production unit contains a submersible electric motor 1 with hydraulic protection 2, a hydromechanical drive 3 and a plunger pump 4.
- the hydromechanical drive 3 contains an oil-filled housing 5, a roller-screw transmission 6 placed in it, made of the screw-nut type with an increased nominal dynamic load capacity, hollow rod 7 enclosing the screw 8 of the roller screw 6 and included with it in a movable connection and connected with the nut 9 of the roller screw 6, the hydraulic unit 10, which includes a displacement hydraulic motor 11, mainly an axial piston motor, connected through a hydraulic valve 12 and a safety valve 13 with an oil pump 14 of a volumetric type, mainly axial piston, connected to the shaft 15 of the submersible motor 1, as well as an elastic membrane 16 installed on the input shaft of the oil pump 14, which acts as a compensator for the volumetric expansion of the oil.
- a displacement hydraulic motor 11 mainly an axial piston motor
- an oil pump 14 of a volumetric type, mainly axial piston
- the hollow rod 7 of the drive 3 is connected to the rod 17 of the plunger pump 4 and is made with perforations 18.
- the perforations are made in the rod 7 on the side of its connection with the rod 17 of the plunger pump (Fig.3).
- the perforation is made near or on the end surface of the stem 7.
- the body 19 of the plunger pump is made long enough to accommodate the hollow rod 7 in it for the entire length of its stroke.
- Rod 17 of the plunger pump is sealed in the body of the plunger pump 4 by means of a sealing sleeve 20 (figure 2).
- a hydromechanical damper 21 is installed between the housing 5 and the hollow rod 7, including the housing 22 with throttle holes 23 for damping, the return spring 24, the piston 25 and the seals 26 of the damper surfaces (Fig.4).
- Another hydromechanical damper 27 of a similar design is rigidly attached to the lower end surface of the nut 9 of the screw transmission and includes a housing 28 with throttle holes 29, a damper return spring 30, a piston 31 and seals 32 of the damper surfaces (Fig.5).
- the cavities of the electric motor 1 and hydraulic protection 2, as well as the housing 5 of the hydromechanical drive, are filled with oil corresponding to the operating and temperature conditions of the equipment.
- the formation fluid fills the space between the elastomeric membrane 16 and the housing 5.
- the valves of the plunger pump 4 on the suction and discharge lines open and the fluid through the intake filter fills the entire volume of the working chamber of the pump 4 to the level of the formation fluid in the well .
- the rod 17 moves down the cavity of the pump 4 is filled with downhole fluid, and when moving upwards, on the contrary, the liquid is forced out of the cavity of the pump 4 into the tubing.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
L'invention se rapporte aux équipements d'extraction de pétrole, peut être utilisée afin de remonter un liquide de fond de puits, et assure une amélioration de la fiabilité de fonctionnement de l'installation d'extraction de pétrole immergée grâce à une augmentation du volume rempli d'huile de l'actionneur hydromécanique, une diminution des pulsations de la membrane élastique, et une diminution de la charge cyclique sur les unités dynamiques d'une transmission à galet et vis. Cette installation d'extraction de pétrole immergée comprend une pompe à piston dont la tige est rendue étanche dans le corps, et un actionneur hydromécanique comprenant un corps rempli d'huile, une transmission à galet et vis de type vis-écrou, une tige creuse perforée entourant la vis de la transmission à galet et vis, connectée à la tige de la pompe à piston et se déplaçant lors de sa course de travail dans le corps de la pompe à piston, une unité hydraulique comprenant un moteur hydraulique connecté via un répartiteur hydraulique à une pompe à huile et sur l'arbre d'entrée duquel se trouve une membrane élastique, et des amortisseurs hydromécaniques dont un est fixé rigidement à la surface d'extrémité inférieure de l'écrou tandis que l'autre est disposé entre le corps rempli d'huile et la tige creuse de l'actionneur de manière en entrer en contact avec l'écrou de la transmission à galet et vis dans sa position extrême supérieure.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2020135000A RU2750179C1 (ru) | 2020-10-26 | 2020-10-26 | Погружная нефтедобывающая установка |
| RU2020135000 | 2020-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022093066A1 true WO2022093066A1 (fr) | 2022-05-05 |
Family
ID=76504713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/RU2021/000452 WO2022093066A1 (fr) | 2020-10-26 | 2021-10-21 | Installation d'extraction de pétrole immergée |
Country Status (2)
| Country | Link |
|---|---|
| RU (1) | RU2750179C1 (fr) |
| WO (1) | WO2022093066A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2766656C1 (ru) * | 2021-06-18 | 2022-03-15 | Акционерное общество "ГМС Нефтемаш" | Погружной гидромеханический редуктор |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5404767A (en) * | 1993-09-03 | 1995-04-11 | Sutherland; James M. | Oil well pump power unit |
| RU2347947C1 (ru) * | 2007-09-04 | 2009-02-27 | Открытое акционерное общество "Российская инновационная топливно-энергетическая компания (ОАО "РИТЭК") | Погружной насосный агрегат |
| RU123857U1 (ru) * | 2012-03-05 | 2013-01-10 | Али Тельман оглы Нагиев | Плунжерный погружной объемный насос |
| RU184849U1 (ru) * | 2017-07-20 | 2018-11-12 | Али Тельман оглы Нагиев | Гидромеханический привод плунжерного насоса |
-
2020
- 2020-10-26 RU RU2020135000A patent/RU2750179C1/ru active
-
2021
- 2021-10-21 WO PCT/RU2021/000452 patent/WO2022093066A1/fr active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5404767A (en) * | 1993-09-03 | 1995-04-11 | Sutherland; James M. | Oil well pump power unit |
| RU2347947C1 (ru) * | 2007-09-04 | 2009-02-27 | Открытое акционерное общество "Российская инновационная топливно-энергетическая компания (ОАО "РИТЭК") | Погружной насосный агрегат |
| RU123857U1 (ru) * | 2012-03-05 | 2013-01-10 | Али Тельман оглы Нагиев | Плунжерный погружной объемный насос |
| RU184849U1 (ru) * | 2017-07-20 | 2018-11-12 | Али Тельман оглы Нагиев | Гидромеханический привод плунжерного насоса |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2750179C1 (ru) | 2021-06-23 |
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