CN2773345Y

CN2773345Y - Plunger-type oil-well pump with direct underground dynamic drive

Info

Publication number: CN2773345Y
Application number: CN 200520020614
Authority: CN
Inventors: 王岩楼; 张传绪; 刘遵权; 柴立新; 董经武
Original assignee: Daqing Oilfield Co Ltd
Current assignee: Daqing Oilfield Co Ltd
Priority date: 2005-04-13
Filing date: 2005-04-13
Publication date: 2006-04-19
Anticipated expiration: 2015-04-13

Abstract

The utility model relates to a plunger type oil well pump directly driven by underground dynamic force, particularly a lifting device for mechanical oil production in oil fields. A pump barrel 7 is installed in an outer barrel 2 of the utility model and is fixedly connected with a pump barrel joint 6, the pump barrel joint 6 is fixedly connected with a fixed valve assembly 8 and a pump barrel fixed joint 19 is fixedly installed between the outer barrel 2 and the pump barrel 7. A plunger 13 and a sand scraping cup 9 are installed in the pump barrel 7, joints 12 are fixedly installed in holes of the plunger 13 and the sand scraping cup 9, the upper ends of the joints 12 are provided with plunger upper valve assemblies 10 and the lower end of the plunger 13 is fixedly connected with a plunger lower valve assembly 16. A plunger oil inlet joint 17 is fixedly installed in the plunger lower valve assembly 16 and is fixedly connected with a connecting rod 18, a sieve pipe 20 is fixedly connected between the pump barrel fixed joint 19 and a motor stator 33 and the connecting rod 18 is fixedly installed a hole of a motor mover 21. The oil well pump solves the problems of low efficiency and high cost when the existing oil production well adopts a sucker-rod pump lifting device and a rodless pump lifting device to produce oil.

Description

Well dynamic direct-driven plunger oil-well pump

Background technique:

The utility model relates to a kind of lift device of oil field machinery oil, is specifically related to a kind of well dynamic direct-driven plunger oil-well pump.

Technical field:

China all adopts the rod pump lift device of being made up of pumping unit, oil pipe, sucker rod and oil well pump etc. by the oil recovery well more than 90% at present, only has the oil recovery well of few part to adopt the rodless pump lift device.Adopt the rod pump lift device in use to have many problems: the one, pumping unit need become straight line motion to rotatablely moving of motor by medium taches such as retarder, quadratic crank mechanism and sucker rods, and its balance is poor, efficient is low; The 2nd, high material consumption, floor space are greatly, investment is big, cost is high; The 3rd, medium tache is many, idle work is many, energy consumption is higher, and the energy consumption of oil production equipment has accounted for about 1/3 of oil field total energy consumption; The 4th, oil pipe and sucker rod partial wear are serious, and the consumption of pipe bar is serious, and the upkeep operation workload is big; The 5th, it is big that running parameter is adjusted workload; The 6th, to the low well of production fluid amount, inclined shaft and horizontal well bad adaptability; Though adopt rodless pump lift devices such as comparatively ripe at present hydraulic piston pump, electric submersible pump, electric oil submerged screw pump, electrical submersible diaphragm pump to reduce floor space, stopped side-abrasion of rod string, improved manufacturing efficiency, but there is the problem that investment is big, maintenance cost is high, application area is narrow, the oil well of high production fluid, big discharge capacity, low lift in being only applicable to.And there is well depth in the oil well in oil-poor district, the production fluid amount is low, pump displacement is low, lift is high, investment and problems such as maintenance cost height, energy consumption height, and the lift device of how selecting to recover the oil becomes the key of falling investment, joint cost, increasing benefit.

The model utility content:

The purpose of this utility model be adopt the rod pump lift device to recover the oil to exist for solving existing oil recovery well that efficient is low, cost is high, energy consumption consume high, the upkeep operation workload is big and adopt the rodless pump lift device to recover the oil investment and maintenance cost height, a kind of well dynamic direct-driven plunger oil-well pump that the narrow problem of application area provides.It is made up of valve assembly 16, plunger fuel inlet fitting 17, connecting rod 18, motor stator 22, screen casing 20, lower contact 23, electric mover 21 under valve assembly 10, the plunger on upper connection 1, urceolus 2, pump barrel 7, pump barrel joint 6, standing valve assembly 8, pump barrel permanent joint 19, plunger 13, strike-off cup 9, joint 12, the plunger; Fixedly connected with the upper end of urceolus 2 in the lower end of upper connection 1, pump barrel 7 is housed in the urceolus 2, fixedly connected with the lower end of pump barrel joint 6 in the upper end of pump barrel 7, fixedly connected with the standing valve cover 8-1 in the standing valve assembly 8 in the upper end of pump barrel joint 6, hole internal fixation between urceolus 2 and the pump barrel 7 is equipped with pump barrel permanent joint 19, plunger 13 is housed in the pump barrel 7, the cup 9 of strike-ofing is equipped with in the upper end of plunger 13, the hole internal fixation of the plunger 13 and the cup 9 of strike-ofing is equipped with joint 12, valve assembly 10 on the plunger is equipped with in the upper end of joint 12, valve cover 10-1 is fixedlyed connected with the cup 9 of strike-ofing on the plunger on the plunger in the valve assembly 10, valve cover 16-1 is fixedlyed connected under the plunger under the lower end of plunger 13 and the plunger in the valve assembly 16, the hole internal fixation of valve cover 16-1 is equipped with plunger fuel inlet fitting 17 under the plunger, the following stomidium of plunger fuel inlet fitting 17 is fixedlyed connected with the upper end of connecting rod 18, be fixedly connected with screen casing 20 between the following stomidium of pump barrel permanent joint 19 and the upper end hole of motor stator 22, the following stomidium of motor stator 22 fixedly is equipped with lower contact 23, fixedlys connected with the upper end of electric mover 21 in the lower end of connecting rod 18.

The utlity model has following beneficial effect: one, the utility model solved that existing oil recovery well adopts the rod pump lift device to recover the oil to exist that efficient is low, cost is high, energy consumption consume high, the upkeep operation workload is big and adopt the rodless pump lift device to recover the oil investment and maintenance cost height, the problem that application area is narrow, this oil well pump is combined into one motor and plunger oil-well pump, utilize linear electric motor or through slowing down and the be in line electric rotating machine of motion of commutation, the electric mover of linear electric motor can be directly or the plunger by extension bar and oil well pump join; Then through after deceleration and the commutation, the straight line motion of being exported links to each other with oil pump plunger piston by push rod electric rotating machine.After the motor stator energising, drive mover or push rod and move up and down like this, thereby the plunger that drives oil well pump moves up and down in pump barrel, finishes the suction operation.Two, use this oil well pump; frequency changing regulating speed control apparatus is adopted on ground; can carry out artificial according to the fluid supply capacity on stratum on ground or control automatically; realize start-stop and communtation protection; and carry out inorganic adjustment running parameter according to producing needs; simultaneously can also carry out production test, provide foundation for producing the diagnosis of analysis and pump condition according to the monitoring of down-hole pressure, load and temperature.Three, use this oil well pump, both can save the input of equipment funds such as pumping unit, can reduce again because operation, workover cost and the oil pipe that sucker rod disconnected takes off, wearing and tearing and oil pipe wearing and tearing cause, the loss of sucker rod, but also can reduce the workload of adjusting parameter and changing pump, convenient management, especially more effective for the exploitation and the reduction cost of winning of inclined shaft, horizontal well.Four, this oil well pump have simple in structure, easy to use, the manufacturing efficiency height, it is low that energy consumption consumes, the upkeep operation workload is little, the investment maintenance cost is low, the advantage of applied range.

Description of drawings:

Fig. 1 is an overall structure schematic representation of the present utility model.

Embodiment:

Embodiment one: in conjunction with Fig. 1 present embodiment is described, present embodiment is made up of valve assembly 16, plunger fuel inlet fitting 17, connecting rod 18, motor stator 22, screen casing 20, lower contact 23, electric mover 21 under valve assembly 10, the plunger on upper connection 1, urceolus 2, pump barrel 7, pump barrel joint 6, standing valve assembly 8, pump barrel permanent joint 19, plunger 13, strike-off cup 9, joint 12, the plunger; Fixedly connected with the upper end of urceolus 2 in the lower end of upper connection 1, pump barrel 7 is housed in the urceolus 2, fixedly connected with the lower end of pump barrel joint 6 in the upper end of pump barrel 7, fixedly connected with the standing valve cover 8-1 in the standing valve assembly 8 in the upper end of pump barrel joint 6, hole internal fixation between urceolus 2 and the pump barrel 7 is equipped with pump barrel permanent joint 19, plunger 13 is housed in the pump barrel 7, the cup 9 of strike-ofing is equipped with in the upper end of plunger 13, the hole internal fixation of the plunger 13 and the cup 9 of strike-ofing is equipped with joint 12, valve assembly 10 on the plunger is equipped with in the upper end of joint 12, valve cover 10-1 is fixedlyed connected with the cup 9 of strike-ofing on the plunger on the plunger in the valve assembly 10, valve cover 16-1 is fixedlyed connected under the plunger under the lower end of plunger 13 and the plunger in the valve assembly 16, the hole internal fixation of valve cover 16-1 is equipped with plunger fuel inlet fitting 17 under the plunger, the following stomidium of plunger fuel inlet fitting 17 is fixedlyed connected with the upper end of connecting rod 18, be fixedly connected with screen casing 20 between the following stomidium of pump barrel permanent joint 19 and the upper end hole of motor stator 22, the following stomidium of motor stator 22 fixedly is equipped with lower contact 23, fixedlys connected with the upper end of electric mover 21 in the lower end of connecting rod 18.

Embodiment two: in conjunction with Fig. 1 present embodiment is described, the standing valve assembly 8 of present embodiment is made up of standing valve cover 8-1, standing valve ball 8-2, standing valve seat 8-3; Standing valve seat 8-3 is contained in the hole of standing valve cover 8-1, in the hole between standing valve seat 8-3 and the standing valve cover 8-1 standing valve ball 8-2 is housed.A standing valve assembly 8 is fixed on the top of pump barrel joint 6, has only when end pressure is greater than last end pressure instantly, and the standing valve ball 8-2 in this standing valve assembly 8 could open, and oppositely pressure reduction is then closed.Other composition and annexation are identical with embodiment one.

Embodiment three: in conjunction with Fig. 1 present embodiment is described, valve assembly 10 is made up of valve seat 10-3 on valve ball 10-2, the plunger on valve cover 10-1, the plunger on the plunger on the plunger of present embodiment; Valve seat 10-3 on the plunger is equipped with in the upper end of joint 12, and valve cover 10-1 on the plunger is equipped with in the upper end of valve seat 10-3 on the plunger, and valve ball 10-2 on the plunger is housed in the hole of valve cover 10-1 on the plunger.Valve assembly 10 moves in pump barrel 7 with plunger 13 on the plunger, has only when end pressure is greater than last end pressure instantly, and valve ball 10-2 could open on the plunger on the plunger in the valve assembly 10, and oppositely pressure reduction is then closed.Other composition and annexation are identical with embodiment one.

Embodiment four: in conjunction with Fig. 1 present embodiment is described, valve assembly 16 is made up of valve seat 16-3 under valve ball 16-2, the plunger under valve cover 16-1, the plunger under the plunger under the plunger of present embodiment; Valve seat 16-3 under the plunger is housed in the hole of valve cover 16-1 under the plunger, valve ball 16-2 under the plunger is housed in the hole between the valve seat 16-3 under valve cover 16-1 and the plunger under the plunger.Valve assembly 16 moves in pump barrel 7 with plunger 13 under the plunger, has only when end pressure is greater than last end pressure instantly, and valve ball 16-2 could open under the plunger under the plunger in the valve assembly 16, and oppositely pressure reduction is then closed.Other composition and annexation are identical with embodiment one.

Claims

1, a kind of well dynamic direct-driven plunger oil-well pump, it is made up of valve assembly (16), plunger fuel inlet fitting (17), connecting rod (18), motor stator (22), screen casing (20), lower contact (23), electric mover (21) under valve assembly (10), the plunger on upper connection (1), urceolus (2), pump barrel (7), pump barrel joint (6), standing valve assembly (8), pump barrel permanent joint (19), plunger (13), strike-off cup (9), joint (12), the plunger; Fixedly connected with the upper end of urceolus (2) in the lower end that it is characterized in that upper connection (1), pump barrel (7) is housed in the urceolus (2), fixedly connected with the lower end of pump barrel joint (6) in the upper end of pump barrel (7), fixedly connected with the standing valve cover (8-1) in the standing valve assembly (8) in the upper end of pump barrel joint (6), hole internal fixation between urceolus (2) and the pump barrel (7) is equipped with pump barrel permanent joint (19), plunger (13) is housed in the pump barrel (7), the cup (9) of strike-ofing is equipped with in the upper end of plunger (13), the hole internal fixation of the plunger (13) and the cup (9) of strike-ofing is equipped with joint (12), valve assembly (10) on the plunger is equipped with in the upper end of joint (12), valve cover (10-1) is fixedlyed connected with the cup (9) of strike-ofing on the plunger on the plunger in the valve assembly (10), valve cover (16-1) is fixedlyed connected under the plunger under the lower end of plunger (13) and the plunger in the valve assembly (16), the hole internal fixation of valve cover (16-1) is equipped with plunger fuel inlet fitting (17) under the plunger, the following stomidium of plunger fuel inlet fitting (17) is fixedlyed connected with the upper end of connecting rod (18), be fixedly connected with screen casing (20) between the upper end hole of the following stomidium of pump barrel permanent joint (19) and motor stator (22), the following stomidium of motor stator (22) fixedly is equipped with lower contact (23), fixedlys connected with the upper end of electric mover (21) in the lower end of connecting rod (18).

2, well dynamic direct-driven plunger oil-well pump according to claim 1 is characterized in that described standing valve assembly (8) is made up of standing valve cover (8-1), standing valve ball (8-2), standing valve seat (8-3); Standing valve seat (8-3) _ be contained in the hole of standing valve cover (8-1) is equipped with standing valve ball (8-2) in the hole between standing valve seat (8-3) and the standing valve cover (8-1).

3, well dynamic direct-driven plunger oil-well pump according to claim 1 is characterized in that valve assembly (10) is made up of valve seat (10-3) on valve ball (10-2), the plunger on valve cover (10-1), the plunger on the plunger on the described plunger; Valve seat on the plunger (10-3) is equipped with in the upper end of joint (12), and valve cover (10-1) on the plunger is equipped with in the upper end of valve seat on the plunger (10-3), and valve ball on the plunger (10-2) is housed in the hole of valve cover (10-1) on the plunger.

4, well dynamic direct-driven plunger oil-well pump according to claim 1 is characterized in that valve assembly (16) is made up of valve seat (16-3) under valve ball (16-2), the plunger under valve cover (16-1), the plunger under the plunger under the described plunger; Valve seat under the plunger (16-3) is housed in the hole of valve cover (16-1) under the plunger, valve ball under the plunger (16-2) is housed in the hole between the valve seat (16-3) under valve cover (16-1) and the plunger under the plunger.