CN2911252Y

CN2911252Y - Reciprocating layered, integrated extracting submersible pump

Info

Publication number: CN2911252Y
Application number: CN 200620020952
Authority: CN
Inventors: 张传绪; 刘遵权; 柴立新; 苗晓明
Original assignee: Daqing Oilfield Co Ltd
Current assignee: Daqing Oilfield Co Ltd
Priority date: 2006-05-31
Filing date: 2006-05-31
Publication date: 2007-06-13
Anticipated expiration: 2016-05-31

Abstract

A reciprocating separate zone whole production submersible pump relates to an oil pump used for oil field and oil well. According to the oil by dual-pump separate zone whole production, it contains the problems of big investment and applicable vogue oil production method, as well as the problem of mutual interference between oil layers system. Upper end of a casing pipe (2) of the utility model is fixed at the well head (7), and the casing pipe (2)contains an upper oil tube (1), whose (1) upper end is fixed at the well head (7), and whose (1) inner part is provided firmly with a tubing drain (3), and whose (1) lower end is fixed at the upper end of upper oil pump (4), with which the upper end of an linear motor (5) made to be integral is fixed at the lower end of the upper oil pump (4), while the upper end of lower oil pump (10) is fixed with the linear motor (5), and the outside wall of the lower oil pump (10) is provided firmly with packer (6), and the two ends of cable (8) are respectively connected with linear motor (5) and control cabinet (9). The utility model combines the linear motor and lower plunger type oil pump to be integral, with advantages of reasonable and compact structure, convenient usage, high reliability, enabling meeting the needs of oil by reciprocating separate zone whole production.

Description

Reciprocating type separate zone whole production oil-immersed pump

Technical field

The utility model relates to the oil well pump that a kind of oilfield is used.

Background technique

For low permeability oil field, the oil reservoir span is big, and the reservoir abundance is low, can not generally adopt the method for double pump separate zone whole production or single-string multi-zone production separately as the oil well of a cover series of strata exploitation.Adopt double pump separate zone whole production fluid to have the big problem of investment; The problem that adopts the single-string multi-zone production method to exist the formation pressure system to interfere with each other.

The model utility content

The purpose of this utility model provides a kind of reciprocating type separate zone whole production oil-immersed pump, and it can solve adopts double pump separate zone whole production fluid, has the big problem of investment and adopts single-string multi-zone production method, the problem that exists the formation pressure system to interfere with each other.

The utility model comprises oil pipe, sleeve pipe, oil drainer, goes up oil well pump, packet, well head, cable, control cabinet and following oil pipe; Fixedly connected with well head in the upper end of sleeve pipe, last oil pipe is contained in the sleeve pipe, fixedly connected with the lower end of well head in the upper end of last oil pipe, last oil pipe internal fixation is equipped with oil drainer, fixedly connected with the upper end of last oil well pump in the lower end of last oil pipe, the utility model also comprises the linear electric motor of making one with following oil well pump; On take out pump the lower end fixedly connected with the upper end of described linear electric motor, following oil pipe is positioned at the lower end of linear electric motor, fixedly connected with linear electric motor in the upper end of following oil pipe, packet fixedly is housed on the outer wall of following oil pipe, and the two ends of cable are connected with control cabinet with linear electric motor respectively.

The utlity model has following beneficial effect: one, the utility model is combined as a whole linear electric motor and lower plunger formula oil well pump, in electric mover, install two from bottom to top unidirectional conducting on travelling valve, thereby form the lower plunger of oil well pump down, motor stator plays down the effect of pump barrel again, standing valve down is housed in the following oil pipe below motor stator, form down oil well pump by Spielpassung between electric mover and motor stator like this, its structural design compactness, operational safety height.Two, the utility model is separated into upper and lower two-part by packet with oil reservoir, thereby has reduced or eliminated between two oil reservoirs owing to span reaches the pressure disturbances that contradiction causes greatly between oil reservoir greatly, has brought into play the production capacity effect of two oil reservoirs to greatest extent.Three, the utility model has been cancelled sucker rod and pumping unit on overall construction design, thereby has solved because well depth causes sucker rod and the easy eccentric wear of oil pick-up tube, disconnected problem such as take off.Four, the utlity model has reasonable in design, easy to use, the needs that can satisfy reciprocating type separate zone whole production fluid.

Description of drawings

Fig. 1 is overall structure master's pseudosection of the present utility model (reference character 12 among Fig. 1 is last oil reservoir, and reference character 13 is following oil reservoir).

Embodiment

Embodiment one: in conjunction with Fig. 1 present embodiment is described, present embodiment by last oil pipe 1, sleeve pipe 2, oil drainer 3, go up oil well pump 4, packet 6, well head 7, cable 8, control cabinet 9, oil pipe 10 and form down with the linear electric motor 5 that following oil well pump is made one; Fixedly connected with well head 7 in the upper end of sleeve pipe 2, last oil pipe 1 is contained in the sleeve pipe 2, fixedly connected with the lower end of well head 7 in the upper end of last oil pipe 1, last oil pipe 1 internal fixation is equipped with oil drainer 3, fixedly connected with the upper end of last oil well pump 4 in the lower end of last oil pipe 1, on take out pump 4 the lower end fixedly connected with the upper end of described linear electric motor 5, following oil pipe 10 is positioned at the lower end of linear electric motor 5, fixedly connected with linear electric motor 5 in the upper end of following oil pipe 10, be positioned at the place, neutral position on the outer wall of following oil pipe 10 packet 6 fixedly is housed, the two ends of cable 8 are connected with control cabinet 9 with linear electric motor 5 respectively.

Embodiment two: in conjunction with Fig. 1 present embodiment is described, the last oil well pump 4 of present embodiment is made up of upper plug 4-1, last pump barrel 4-2, last standing valve 4-3, last pump travelling valve one 4-4 and last pump travelling valve two 4-5; Fixedly connected with the lower end of last oil pipe 1 in the upper end of last pump barrel 4-2, last pump barrel 4-2 internal fixation is equipped with standing valve 4-3, in the last pump barrel 4-2 of last standing valve 4-3 lower end upper plug 4-1 is housed, fixedly connected with linear electric motor 5 in the lower end of last pump barrel 4-2, pump travelling valve one 4-4 and last pump travelling valve two 4-5 from top to bottom are housed in the upper plug 4-1 successively.So be provided with, it is simple in structure, installs easily and makes.Other composition and annexation are identical with embodiment one.

Embodiment three: in conjunction with Fig. 1 present embodiment is described, the linear electric motor 5 of present embodiment are made up of motor stator 5-1, electric mover 5-2, following pump travelling valve one 5-3, following pump travelling valve two 5-4 and following standing valve 5-5; Electric mover 5-2 is contained in the motor stator 5-1, fixedly connected with the lower end of upper plug 4-1 in the upper end of electric mover 5-2, pump travelling valve one 5-3 and following pump travelling valve two 5-4 from top to bottom are housed down in the electric mover 5-2 successively, following oil pipe 10 internal fixation of following pump travelling valve two 5-4 lower ends are equipped with down standing valve 5-5, fixedly connected with the upper end of following oil pipe 10 in the lower end of motor stator 5-1, an end of cable 8 is connected with motor stator 5-1.So be provided with, compact overall structure, operational reliability is good, can be finished the suction operation of fluid by this linear motor driving.Other composition and annexation are identical with embodiment one.

Embodiment four: in conjunction with Fig. 1 present embodiment is described, the difference of present embodiment and embodiment one is: present embodiment also increases connecting rod 11; Fixedly connected with electric mover 5-2 with upper plug 4-1 respectively in the two ends of described connecting rod 11.So be provided with, be convenient to electric mover 5-2 and upper plug 4-1 are coupled together.

Working procedure is: after the motor stator 5-1 energising, drive motor mover 5-2 drives upper plug 4-1 and moves in last pump barrel 4-2, move in the motor stator 5-1 of while as electric mover 5-2 pump barrel under conduct of lower plunger, thereby finish the fluid suction operation of upper and lower two oil reservoirs, can aspirate operation by force to the fluid in the following oil reservoir 13 especially.Fluid in the following oil reservoir 13 is drawn in the oil reservoir 12 by subordinate's pump, and is evacuated to ground by higher level's pump jointly with fluid in the last oil reservoir 12, thereby realizes the purpose of separate zone whole production.

Claims

1, a kind of reciprocating type separate zone whole production oil-immersed pump, it comprises oil pipe (1), sleeve pipe (2), oil drainer (3), goes up oil well pump (4), packet (6), well head (7), cable (8), control cabinet (9) and following oil pipe (10); Fixedly connected with well head (7) in the upper end of sleeve pipe (2), last oil pipe (1) is contained in the sleeve pipe (2), fixedly connected with the lower end of well head (7) in the upper end of last oil pipe (1), last oil pipe (1) internal fixation is equipped with oil drainer (3), fixedlys connected with the upper end of last oil well pump (4) in the lower end of last oil pipe (1); It is characterized in that it also comprises the linear electric motor (5) of making one with following oil well pump; On take out pump (4) the lower end fixedly connected with the upper end of described linear electric motor (5), following oil pipe (10) is positioned at the lower end of linear electric motor (5), fixedly connected with linear electric motor (5) in the upper end of following oil pipe (10), packet (6) fixedly is housed on the outer wall of following oil pipe (10), and the two ends of cable (8) are connected with control cabinet (9) with linear electric motor (5) respectively.

2, reciprocating type separate zone whole production oil-immersed pump according to claim 1, it is characterized in that described go up oil well pump (4) by upper plug (4-1), go up pump barrel (4-2), go up standing valve (4-3), go up pump travelling valve one (4-4) and last pump travelling valve two (4-5) is formed; Fixedly connected with the lower end of last oil pipe (1) in the upper end of last pump barrel (4-2), last pump barrel (4-2) internal fixation is equipped with standing valve (4-3), in the last pump barrel (4-2) of last standing valve (4-3) lower end upper plug (4-1) is housed, fixedly connected with linear electric motor (5) in the lower end of last pump barrel (4-2), pump travelling valve one (4-4) and last pump travelling valve two (4-5) from top to bottom are housed in the upper plug (4-1) successively.

3, reciprocating type separate zone whole production oil-immersed pump according to claim 1, it is characterized in that described linear electric motor (5) by motor stator (5-1), electric mover (5-2), down pump travelling valve one (5-3), pump travelling valve two (5-4) and following standing valve (5-5) are formed down; Electric mover (5-2) is contained in the motor stator (5-1), fixedly connected with the lower end of upper plug (4-1) in the upper end of electric mover (5-2), pump travelling valve one (5-3) and following pump travelling valve two (5-4) from top to bottom are housed down in the electric mover (5-2) successively, following oil pipe (10) internal fixation of following pump travelling valve two (5-4) lower end is equipped with down standing valve (5-5), fixedly connected with the upper end of following oil pipe (10) in the lower end of motor stator (5-1), an end of cable (8) is connected with motor stator (5-1).

4, reciprocating type separate zone whole production oil-immersed pump according to claim 1 is characterized in that it also comprises connecting rod (11); Fixedly connected with electric mover (5-2) with upper plug (4-1) respectively in the two ends of described connecting rod (11).