SU1002532A1

SU1002532A1 - Gas-lift device

Info

Publication number: SU1002532A1
Application number: SU813239231A
Authority: SU
Inventors: Борис Гаврилович Тарасов; Роман Семенович Яремийчук; Алибайрам Мешади Гусейн Оглы Абдулзаде; Галина Николаевна Хныкина; Людмила Васильевна Купчак; Татьяна Антоновна Куземко
Original assignee: Ивано-Франковский Институт Нефти И Газа
Priority date: 1981-01-19
Filing date: 1981-01-19
Publication date: 1983-03-07

Description

Изобретение относитс к добыче нефти, а именно к устройствам дл транспортировки нефти по колонне насосно-компрессорных труб при извлечении нефти из скважины.The invention relates to the extraction of oil, namely, devices for transporting oil through a tubing string when extracting oil from a well.

Известен газлифтный подъемник, содержащий колонну насосно-компрессорных труб и камеру дл подвода рабочего агента во внутреннюю полость колонны-компрессорных труб С ЗНедостатком указанного газлифтного подъемника вл етс отсутствие возможности качественной и управл емой аэрации нефт ной эмульсии с газообразным рабочим агентом.A gas lift is known that includes a tubing string and a chamber for supplying a working agent to the internal cavity of a tubing / compressor tube.

Наиболее близким к изобретению решением вл етс газлифтный подъемник , содержащий св занный с колонной подъемных труб корпус, имеющий камеру смешени и установленный под ней узел дл ввода газообразного рабочего агента, обратный клапан и пакер, установленный под узлом дл ввода рабочего агента 2.The closest solution to the invention is a gas lift lift comprising a housing connected to a column of lifting tubes, having a mixing chamber and an assembly for injecting a gaseous working agent, a check valve and a packer installed under an assembly for introducing working agent 2.

Дл известного подъемника характерна сложность конструкции, св занна с наличием двухсистемно1й соосно расположенной колонны насосно-компрессорных труб в скважине. Необходимость установки в скважинеFor a well-known lift, the complexity of the design is associated with the presence of a double-system coaxially arranged tubing string in the well. The need for installation in the well

двух соосно расположенных колонн труб вытекает из услови формировани корпуса газлифтного устройства, внутри которого расположена камера смешени . Установка при этом обратного клапана ниже камеры смешени .снижает качество нефт ной эмульсии с рабочим агентомгазом ,оTwo coaxially arranged columns of pipes flow out of the conditions for the formation of the body of the gas-lift device, inside which the mixing chamber is located. The installation of a non-return valve below the mixing chamber reduces the quality of the oil emulsion with the working agent gas agent,

10ten

Цель изобретени - упрощение конструкции газлифтного подъемника и повышение качества аэрации нефт ной эмульсии и газообразного рабочего агента.The purpose of the invention is to simplify the design of a gas lift and improve the quality of aeration of oil emulsion and gaseous working agent.

1515

Поставленна цель достигаетс тем, что в газлифтном подъемнике, содержащем св занный с колонной подъемных труб корпус, имеющий камеру смешени и установленный под ней The goal is achieved by the fact that in a gas-lift lift containing a housing associated with a column of lifting pipes, having a mixing chamber and installed under it

20 узел дл ввода газообразного рабочего агента, обратный клапан и пакер установленный под узлом дл ввода рабочего агента, обратный клапан установлен в колонне подъемных труб 20 node for introducing the gaseous working agent, non-return valve and packer installed under the node for introducing the working agent, non-return valve installed in the column of lifting pipes

25 над камерой смешени .25 above the camera mix.

На чертеже представлена схема газлифтиого подъемника. - Газлифтный подъемник содержит св занный с колонной подъемных труб The drawing shows a diagram of gas lift. - The gas lift contains a tubing associated with the lifting column.

Claims

30 1 case 2, having an ejector 3 with a mixing chamber 4, and an assembly under it for introducing a gaseous working agent, including a housing 5 and a nozzle. A check valve 7 is installed above the mixing chamber 4. A packer 8 is installed under the unit for introducing the gaseous working agent. In the case 2, holes 9 are made for the passage of the gaseous working agent to the nozzle 6. The gas lift works as follows. After installing the gas lift lift body 2 in the riser string, the device is lowered into the well and immersed in the oil emulsion filling the well. Through the ground units into the annular space under the design pressure, depending on the diametrical ratios of the working nozzle 6 and the mixing chamber 4 of the ejector 3, a gaseous working agent is supplied. Through the casing 3, the working agent enters the hole and then enters the bis. The high velocity enters the mixing chamber 4. Due to the pressure drop before entering the mixing chamber 4, which is associated with the known izhozhtiruyuschimi capacity of the ejector 3, a reduced hydrostatic pressure is created in the reservoir, which contributes to improving the quality and quantity of oil flow from the reservoir. On the other hand, in the mixing chamber 4, high-quality separation of the oil emulsion with the working agent takes place, which is the main factor for the efficient transportation of formation fluids (oil) from the depth of the well. The choice of the optimal diametral ratios of the working nozzle 6 and the mixing chamber 4, depending on the physical properties of the transported oil and the Ground power units - pump-compressor units, can be controlled by the mode of transportation :: oil from the depth of the well. In addition, the device makes it possible to increase the oil recovery of productive formations by creating deep depressions in them, which is accomplished by packing the annular space. Installing a check valve above the mixing chamber eliminates the pressure loss of the gas. boiling agent to obtain an aerated emulsion. The use of the proposed device allows to increase the volume of oil recovery from the well by 1.5 times. Claims of Invention A gas lift comprising a housing associated with a column of lifting pipes, having a mixing chamber and an assembly underneath for introducing a gaseous working agent, a check valve and a packer installed under the assembly for introducing a working agent, which in order to simplify design and improvement of the quality of aeration of the oil emulsion and gaseous working agent; the check valve is installed in the column of lifting pipes above the mixing chamber. Sources of information taken into account during the examination 1. USSR author's certificate No. 663823, cl. E 21 B 43/00, 1977.

2. US patent number 2463317, cl. 417-172, published. 1949 (prototype).

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