SU981678A1

SU981678A1 - Well sucker rod pumping unit

Info

Publication number: SU981678A1
Application number: SU813265314A
Authority: SU
Inventors: Шукюр Новруз Оглы Алиев; Габиб Гасан Оглы Джабаров; Энвер Мисир Оглы Рустамов; Михаил Александрович Субботин; Георгий Агалумович Айрапетов
Priority date: 1981-06-19
Filing date: 1981-06-19
Publication date: 1982-12-15

Description

Изобретение относитс к технике добычи нефти, в частности к скважинным штанговым насосным установкам, и может быть использовано при глубиннонасосной -эксплуатации скважин.The invention relates to a technique for oil production, in particular, to well pumping sump units, and can be used during deep-well operation.

Известна скважинна штангова насосна установка, содержаща установленные в эксплуатационной колонне труб верхний и нижний насосы, плунжеры которых св заны между собой штоком, а цилиндры - соединительной трубой с радиальными каналами, и пакер , размешенный на соединительной трубе tlj.A well-known sucker-rod pumping unit, comprising upper and lower pumps installed in the production string, the plungers of which are interconnected by a rod, and the cylinders are connected by a connecting pipe with radial channels, and a packer placed on the connecting tube tlj.

Недостатками известной скважинной штанговой насосной установки вл ютс агрессивное воздействие пластовых вод на элементы подземного и наземного оборудовани установки, а также вли ние наличи пластовых вод на повышение нагрузок на головку балансира станка-качалки. Все это снижает надежность работы установки в целом.The disadvantages of the well-known well pumping unit are the aggressive effect of formation water on the elements of the underground and surface equipment of the installation, as well as the effect of the presence of formation water on the increase in loads on the balance head of the pumping unit. All this reduces the reliability of the installation as a whole.

Цель изобретени - повышение надежности путем осуществлени сепарации нефти от воды и подкачки последней в лежащий вы1че эксплуатируемого истощенньай пласт скважиньа.The purpose of the invention is to increase reliability by separating oil from water and pumping the latter into a well-depleted well that lies deeper than the one exploited.

Указанна цель достигаетс тем, что установка дополнительно снабжена пакером, установленным на верхнем насосе, и сепарационной камерой, образованной эксплуатационной колонной труб и соединительной трубой с одной стороны и обоими пакерами - с другой стороны, и сообщакицеРс с полостью соединительной трубы через радиальные каналы.This goal is achieved by the fact that the installation is additionally equipped with a packer mounted on the upper pump, and a separation chamber formed by the production casing pipe and the connecting pipe on the one hand, and both packers on the other hand, and the circumference of the connecting pipe through the radial channels.

На чертеже схематически изображена скважинна насосна установка, разрез.The drawing shows schematically a well pump installation, a slit.

Скважинна штангова насосна установка содержит установленные в эксплуатационной колонне труб 1 верхний 2 и нижний 3 насосы, плунжеры 4 и 5 которых св заны между собой штоком 6, а цилиндры 7 и 8 - соединительной трубой 9 с радиальными каналами 10, и пакер 11, размещен20 ный на соединительной трубе 9. Установка дополнительно снабжена пакером 12, установленным н верхнем насосе 2 и сепарационной камерой 13, образованной эксплуатационной колонной труб 1 и соединительной трубой 9 с одной стороны и обоими пакерами 11 и 12 - с другой стороны н сообщакщейс с полостью соединительной трубы 9 через радиальные каналы 10. The well pumping unit contains the upper 2 and lower 3 pumps installed in the production string of pipes 1, the plungers 4 and 5 of which are interconnected by a rod 6, and the cylinders 7 and 8 are connected by a connecting pipe 9 with radial channels 10, and the packer 11 is placed 20 on the connecting pipe 9. The installation is additionally equipped with a packer 12, installed on the upper pump 2 and a separation chamber 13 formed by the production casing pipe 1 and the connecting pipe 9 on the one hand and both packers 11 and 12 on the other side communicating with olostyu connecting pipe 9 through the radial channels 10.

Claims

30 Cylinder 7 of the upper pump 2 is equipped with a suction valve 1 and valve 14, and its plunger 4 is equipped with a pressure valve 15. 1 or 8 of the lower pump 3 is equipped with a suction valve 16, and its plunger 5 is equipped with a blower valve 17. IihfoK 6, the connecting plungers 4 and 5 correspond ., the upper 2 and lower 3 pumps, passes through the seal 18. The plunger 4 of the upper pump 2 is connected to the column rods (n shown). The installation works as follows. When the plunger 5 of the lower pump 3 moves upward, the suction valve 16 and the well fluid from the formation open. And enters the sub-plunger cavity of the cylinder 8 (discharge valve 17 is closed). When the plunger 5 of the lower pump 3 moves downward, the suction valve 16 closes and the discharge valve 17 opens and the fluid from the sub plunger cavity of the cylinder 8 moves into the connecting pipe 9 of cylinders 7 and 8, from where it passes through the radial channels 10 to the separation chamber 13, where due to the difference in the specific gravities of liquids, the oil emerges, and water is deposited in the lower part of the chamber and is squeezed out by means of the lower pump 3 into the overlying depleted reservoir B. At the same time, the oil accumulated in the upper part of the separation chamber 13 is pumped out to the surface are the upper pump

2. Plungers 4 and 5, respectively, of the upper and lower pumps 2 and 3 are driven simultaneously from the pumping unit through the column of pump rods. Thus, with each stroke of plungers 4 and 5, the proposed process is repeated, i.e. the oil in chamber 13 is separated from the water and the upper pump 2 is pumped to the day surface, and water is pumped into the overlying depleted layer B. The use of the invention allows to increase the service life of underground and surface equipment, reduce the amount of tubing and rods consumed, increase the overhaul the period of operation of the well, use less powerful pumping units, reduce the number of produced underground repairs of the well, and also increase the oil production and reduce the cost per ton of oil produced efti. Invention Formula Well pumping unit, containing upper and lower pumps installed in the production string, the plungers of which are interconnected by a rod, and the cylinders - a connecting pipe with radial channels, and a packer placed on the connecting pipe, so that that, in order to increase the reliability of work by separating the oil from the howl and pumping the latter into the depleted wellbore above the exploitation layer, it is additionally equipped with a packer mounted on the upper m pump and the separation chamber formed tubing string and the connecting pipe, on the one hand, and the two packers - on the other hand, and a cavity communicating with the connection pipe through radial channels. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 823635, cl. F 04 B 47/00, 1976.