RU2386018C1 - Rod pumping installation for extraction of oil at simultaneous separate operation by one well of two stratums - Google Patents

Rod pumping installation for extraction of oil at simultaneous separate operation by one well of two stratums Download PDF

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Publication number
RU2386018C1
RU2386018C1 RU2008146316/03A RU2008146316A RU2386018C1 RU 2386018 C1 RU2386018 C1 RU 2386018C1 RU 2008146316/03 A RU2008146316/03 A RU 2008146316/03A RU 2008146316 A RU2008146316 A RU 2008146316A RU 2386018 C1 RU2386018 C1 RU 2386018C1
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RU
Russia
Prior art keywords
rod
wellhead
downhole
sucker
separate
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RU2008146316/03A
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Russian (ru)
Inventor
Ильдар Шамильевич Гарифуллин (RU)
Ильдар Шамильевич Гарифуллин
Урал Маратович Абуталипов (RU)
Урал Маратович Абуталипов
Юрий Халифович Кутлуяров (RU)
Юрий Халифович Кутлуяров
Сергей Александрович Вахрушев (RU)
Сергей Александрович Вахрушев
Original Assignee
Открытое акционерное общество "Акционерная нефтяная компания "Башнефть" (ОАО "АНК "Башнефть")
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Priority to RU2008146316/03A priority Critical patent/RU2386018C1/en
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Publication of RU2386018C1 publication Critical patent/RU2386018C1/en

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Abstract

FIELD: oil-and-gas production.
SUBSTANCE: installation consists of wellhead and downhole parts. Downhole part contains downhole sucker-rod pump with casing and cylinder, bottom sucking and delivery valves, distributional clutch, allowing cone-shaped support, top sucking and delivery valves installed from the side. According to the invention wellhead part additionally provides separate outlet of liquid from two stratums and in downhole part distributional clutch connected to cylinder of downhole sucker-rod pump contains top sucking and delivery valves located from the opposite sides from axis one over other in the same plane. This provides reduction of distance between valves, forms space over plunger, providing receiving and discharge of liquid from the top stratum into flow column and into head equipment separately from liquid of bottom stratum. Plunger of sucker-rod pump is connected to hollow rod column by hollow polished rod with compression forming separate line for discharge of liquid from bottom stratum through shank end connected to packer into head equipment.
EFFECT: increasing of operation reliability and simplification of device structure, ensured by discrete measurement of production of each stratum and separate field gathering.
1 dwg

Description

The invention relates to the oil industry, in particular to downhole pumping units for the separate operation of two layers of one well. It provides simultaneous separate operation of two layers with separate measurement of the flow rate of each layer and separate fishing harvest.
SUBSTANCE: installation contains wellhead and borehole parts and consists of a hollow rod string, a distribution unit with valves and a seal, a well rod pump and hollow polished rods. The installation provides a separate rise and exit of well fluid from two layers. Measurement of their flow rate is carried out using separate flow lines.
A known pump installation for the simultaneous separate operation of two layers in the well (Patent RU 2291952, IPC E21B 43/14, published 2007.01.02), comprising a column of lift pipes, a column of rods, a packer, a liner and a differential pump with a hollow plunger, while the suction and discharge valves of the upper section of the pump are installed on the side. A rod is installed under the plunger with the possibility of axial movement and forced simultaneous opening of the suction and discharge valves of the lower section of the pump of the device.
A disadvantage of the known technical solution is that in the presence of mechanical impurities and deposits of paraffin-resinous substances in the passage parts of the valves, it is possible that the forced opening of the valves may not work, as well as their transition back to working condition.
A well-known design of a double-acting pump (Thematic collection of scientific papers, AzNIPIneft, 1978, article "Creating double-acting borehole sucker rod pumps", p. 3-6), which is a sleeve vertical plunger pump of plug-in or non-standard design with a nominal size of 55 mm, with casing and cylinder, lower suction and discharge valves, cone-shaped distribution sleeve, upper suction and discharge valves installed on the side, distinctive features of which th are simplicity of design and the possibility of maximum utilization of production units and parts of pumps, the arrangement of the discharge valve at the top of the upper chamber precluding the accumulation of gas in it, the use of standard diameters of pipes used in the operation of serial pumps wells. The disadvantage of this pump is the large distance between the upper suction and discharge valves, creating additional harmful space, reducing the flow of well fluid and causing the deposition of mechanical impurities in the upper part of the pump, which can lead to jamming of the plunger. Using a 55 mm diameter pump creates problems with side valve placement when using a 146 mm diameter casing.
The task of the invention is to increase the reliability of the installation with simplicity of design.
The problem is solved in that the sucker rod pumping unit for oil production with simultaneous separate operation of one well of two layers, consisting of a wellhead and a borehole part, in the borehole part containing a borehole sucker pump with a casing and a cylinder, lower suction and discharge valves, a distribution sleeve having conical support, upper suction and discharge valves mounted sideways, according to the invention, the wellhead of the installation additionally provides a separate outlet for liquid of two layers, and in the downhole part, the distribution sleeve connected to the cylinder of the downhole sucker rod pump contains upper suction and discharge valves located on different sides of the axis one above the other in the same plane, which allows to reduce the distance between the valves, forms a space above the plunger providing intake and exit of fluid from the upper reservoir to the tubing string and to the wellhead separately from the lower reservoir fluid, the plunger of the downhole sucker rod pump is connected a hollow rod string hollow polished rod sealingly, forming a separate line for the exit of fluid from the formation through the lower shank connected with a packer, a wellhead valve.
The drawing shows a diagram of the installation of a sucker rod pump for oil production with simultaneous separate operation of two formations by one well using a casing with a diameter of 146 mm or more.
The installation consists of wellhead 1 and downhole 2 parts.
In the wellhead, a commercially available wellhead valve 3 is used for operating well sucker-rod pumps with a modified design that provides a separate exit of fluids from two layers. For the separation of liquids, a separation unit 4 with a hollow polished wellhead stem seal is used.
The borehole part of the installation consists of a hollow rod string 5, a distribution sleeve 6 with a top suction 7 and a discharge valve 8 located on opposite sides of the axis one above the other in the same plane, a conical support 9, a hollow polished rod seal 10, a borehole sucker rod pump 11 s a plunger 12 with lower suction 13 and discharge 14 valves, located under the distribution sleeve, of a hollow polished rod 15. The distribution sleeve 6 is connected in the lower part to the cylinder of the downhole rod pump 11. A packer 16 is installed below the installation to isolate the exploited formations - the upper 17 and the lower 18. The shank of production equipment is connected to the packer. To supply the borehole fluid to the flow lines, separate outlets of wellhead valves are used: 19 from the lower and 20 from the upper formation.
The installation distribution clutch uses standard valves in complete housings with the possibility of their selection.
Installation works as follows.
The hollow rod column 5 is driven back and forth by a ground drive. When the rod column 5 and the plunger 12 move downward, the liquid from the upper formation 17 through the upper suction valve 7 enters the cavity above the plunger of the downhole sucker rod pump 11. Simultaneously, the liquid from the lower formation 18 through the lower discharge valve 14, the plunger 12 and the polished hollow rod 15 enters hollow rod string 5. The seal of the hollow polished rod 10 prevents liquid from entering the tubing string. The liquid enters the separation unit 4 along the hollow rod string and then to the outlet 19 of the separate line of the wellhead reinforcement 3 of the well.
During the course of the rod string 5 and plunger 12 upward, fluid from the lower reservoir 18 through the liner enters the cylinder of the sucker rod pump 11 located above the packer 16. In this case, fluid from the cavity above the plunger through the upper discharge valve 8 enters the tubing string and then output 20 of a separate line of wellhead valves 3.
The process is repeated cyclically in the same sequence.
Measurement and control of the fluid flow rate of the well is carried out using a satellite of the Sputnik type along separate flow lines.
Thus, the proposed installation allows the production of borehole fluid with simultaneous separate operation of one well of two layers, to carry out its separate rise and metering. The design of the installation eliminates the deposition of mechanical impurities in the cavity above the plunger and the seals of the hollow rods, which increases the reliability of its operation.

Claims (1)

  1. A sucker-rod pumping unit for oil production with simultaneous separate operation of one well of two layers, consisting of a wellhead and a borehole part, containing a borehole sucker-rod pump with a casing and a cylinder, lower suction and discharge valves, a distribution sleeve having a conical support, upper suction and discharge valves installed on the side, characterized in that the wellhead of the installation additionally provides a separate outlet of fluid from two layers, and in the borehole hour and a distribution sleeve connected to the cylinder of the sucker rod pump, contains upper suction and discharge valves located on opposite sides of the axis above each other in the same plane, which allows to reduce the distance between the valves, forms a space above the plunger, providing fluid intake and exit from the upper formation in the tubing string and in the wellhead separately from the lower formation fluid, the plunger of the downhole sucker rod pump is connected to the hollow rod string hollow floor Rowan rod sealingly, forming a separate line for the exit of fluid from the formation through the lower shank connected with a packer, a wellhead valve.
RU2008146316/03A 2008-11-24 2008-11-24 Rod pumping installation for extraction of oil at simultaneous separate operation by one well of two stratums RU2386018C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2008146316/03A RU2386018C1 (en) 2008-11-24 2008-11-24 Rod pumping installation for extraction of oil at simultaneous separate operation by one well of two stratums

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2008146316/03A RU2386018C1 (en) 2008-11-24 2008-11-24 Rod pumping installation for extraction of oil at simultaneous separate operation by one well of two stratums

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RU2386018C1 true RU2386018C1 (en) 2010-04-10

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102322223A (en) * 2011-08-31 2012-01-18 中国石油天然气股份有限公司 Geothermal heat superconducting heat-transferring wax eliminating and preventing sucker rod
WO2012044203A1 (en) * 2010-09-27 2012-04-05 Kuneevskiy Vladimir Vasilevich Double-action sucker-rod well pump
CN104373329A (en) * 2014-10-31 2015-02-25 俞洧 Tube type oil well pump without compression cylinder
RU2565619C1 (en) * 2014-10-13 2015-10-20 Открытое акционерное общество "Татнефть" имени В.Д. Шашина Bidirectional oil well pump
RU2658085C1 (en) * 2017-03-06 2018-06-19 Асгар Маратович Валеев Installation for dual oil well operation and method of measuring formation production

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
М.Н.АЛИЕВ и др. Создание скважинных штанговых насосов двустороннего действия. Тематический сборник научных трудов. Вып.XI.YII. - Баку.: АзНИПИнефть, 1978, с.3-6. *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012044203A1 (en) * 2010-09-27 2012-04-05 Kuneevskiy Vladimir Vasilevich Double-action sucker-rod well pump
US20130195702A1 (en) * 2010-09-27 2013-08-01 Vladimir Vasilevich Kuneevskiy Double-action sucker-rod well pump
US9316222B2 (en) * 2010-09-27 2016-04-19 Vladimir Vasilevich Kuneevskly Double-action sucker-rod well pump
CN102322223A (en) * 2011-08-31 2012-01-18 中国石油天然气股份有限公司 Geothermal heat superconducting heat-transferring wax eliminating and preventing sucker rod
RU2565619C1 (en) * 2014-10-13 2015-10-20 Открытое акционерное общество "Татнефть" имени В.Д. Шашина Bidirectional oil well pump
CN104373329A (en) * 2014-10-31 2015-02-25 俞洧 Tube type oil well pump without compression cylinder
RU2658085C1 (en) * 2017-03-06 2018-06-19 Асгар Маратович Валеев Installation for dual oil well operation and method of measuring formation production

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Effective date: 20101125