CN207673502U - A kind of rod pumping pump and ground driving screw pump combined type oil pumping system - Google Patents

A kind of rod pumping pump and ground driving screw pump combined type oil pumping system Download PDF

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Publication number
CN207673502U
CN207673502U CN201820019828.5U CN201820019828U CN207673502U CN 207673502 U CN207673502 U CN 207673502U CN 201820019828 U CN201820019828 U CN 201820019828U CN 207673502 U CN207673502 U CN 207673502U
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pump
screw pump
rod
steering mechanism
oil
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CN201820019828.5U
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张兴华
杨志
李浩东
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Southwest Petroleum University
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Southwest Petroleum University
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Abstract

The utility model belongs to technical field of mechanical oil extraction, more particularly to a kind of rod pumping pump and ground driving screw pump combined type oil pumping system, include mainly screw pump and oil well pump, have inside screw pump rotor center cavity and on, lower end is equipped with rotatable steering mechanism, the driving screw rod of sucker rod connection passes through screw pump rotor center cavity, steering mechanism's inner wall is matched with driving screw rod, screw rod is driven to drive the rotary motion of steering mechanism, it is engaged in down stroke by unidirectional ratchet between steering mechanism and screw pump rotor, upstroke does not engage, to which screw pump rotor is upper, the unidirectional rotary motion of down stroke is formed during down stroke, clamping cap compresses steering mechanism in the rotor, the sucker rod that driving screw rod lower end is connected to oil well pump by lower contact with lower part is connected, screw pump is connect by oil pipe with oil well pump.Screw pump rotor does not rotate when upstroke, screw pump is stopped, the fluid of oil pumping pumped, which enters in oil storage outer tube, keeps in, screw pump rotor single direction rotation when down stroke, temporary fluid extraction is drained into screw pump upper portion, ground well head is discharged finally by top oil pipe, has haved the function that relay is pumped.The utility model can reduce oil pumping machine polished rod load, increase oil well pump pump setting depth, increase the displacement range of oil well pump, and can achieve the purpose that energy-efficient.

Description

A kind of rod pumping pump and ground driving screw pump combined type oil pumping system
Technical field
The utility model belongs to technical field of mechanical oil extraction, and in particular to a kind of rod pumping pump and ground driving screw pump Combined type oil pumping system, be applicable to deep-well take out deeply, the oil well of huge discharge.
Background technology
During oil exploitation, with the exploitation in the deep-seated oils gas field such as Tarim Basin, it disclosure satisfy that deep-well huge discharge is taken out deeply Technology be increasingly becoming real needs, it is that many oil fields are urgently tackled key problems the life of solution both at home and abroad at present that deep-well huge discharge is taken out deeply Produce technical problem, it is contemplated that the problems such as relatively deep, old filed oil reservoir energy continuously decreases is buried in oil field oil-gas reservoir newly developed to cause The pump setting depth of machine-pumped oil well constantly deepen, single artificial lifting way often shows certain office with the increase of lift height Sex-limited and inefficiencies.Discharge capacity is small when or single artificial lifting way cannot meet the needs of lift height or face deep take out, imitates The low problem of rate, therefore combined artificial lift technology is pumped into for deep as inevitable choice.
Invention content
The purpose of this utility model is to overcome the deficiencies that the existing single machine in market adopts lifting equipment, provide one kind Rod pumping pump and ground driving screw pump novel combination type oil pumping system.It, which can utilize upper screw pump to improve lower part, bar Oil well pump deeply take out during load the problems such as.The utility model can increase the lifting depth of machine-pumped oil well, meet deep from now on The needs that well, huge discharge are exploited solve the major issue that mechanical oil production technology faces.
Technical solution used by the utility model is:
A kind of rod pumping pump of the utility model and ground driving screw pump combined type oil pumping system include mainly upper and lower two Part, top half are screw pump, and lower half portion is oil well pump.Screw pump includes driving screw rod, upper steering mechanism, screw pump turn Son, screw pump stator, lower steering mechanism.Driving screw rod upper and lower side is fixedly connected on sucker rod by top connection and lower contact respectively On, sucker rod lower end is connect with oil well pump, and driving screw surface is equipped with screw thread.The screw pump rotor center is equipped with vertical Cavity, the driving screw rod pass through the cavity.The upper end of screw pump rotor, the center of lower end are respectively equipped with rotatable Upper steering mechanism and lower steering mechanism, and upper steering mechanism and lower steering mechanism are pressed on by screw pump rotor by clamping cap On.The upper steering mechanism is identical with lower steering mechanism structure, including spiral-tube ontology, and spiral-tube inner body wall is equipped with big spiral shell Away from screw thread, the screw-thread fit of the steep-pitch thread and driving screw surface.Spiral-tube body outer wall is equipped with unidirectional ratchet, institute The screw pump rotor stated is internally provided with unidirectional ratchet and is meshed with the unidirectional ratchet of spiral-tube body outer wall.
Sucker rod moves downward through driving screw rod and upper steering mechanism, lower steering mechanism when the oil well pump down stroke of lower part Screw pump rotor single direction rotation is driven, screw pump oil pumping, sucker rod moves upwards when the oil well pump upstroke of lower part, screw rod Pump rotor does not rotate, screw rod air pump inoperative.Screw pump is connect with oil well pump by oil pipe end.Oil pipe is externally provided with oil storage at screw pump Outer tube, the oil pipe at the oil storage outer tube are connected to equipped with through-hole with oil storage outer tube, and through-hole is located at the lower section of screw pump stator.Institute The driving screw rod stated is matched with the inside of upper steering mechanism and lower steering mechanism by screw thread, and when oil well pump up-down stroke passes through Sucker rod drives driving screw rod to move up and down to the upper steering mechanism of driving and the rotary motion of lower steering mechanism.Upper steering mechanism, Lower matched with unidirectional ratchet between steering mechanism and screw pump rotor, and to ensure, in oil well pump down stroke, screw pump turns Sub- single direction rotation oil pumping, and screw pump rotor does not rotate when upstroke, screw pump is stopped.Oil pumping pumped when upstroke Fluid, which enters in oil storage outer tube, keeps in, screw pump rotor single direction rotation when down stroke, and temporary fluid extraction is drained into screw pump Ground well head is discharged finally by top oil pipe in top, has haved the function that relay is pumped.
The utility model combined type oil extraction system has the following advantages:The utility model can reduce pumping unit hanging point load Lotus increases oil well pump pump setting depth, increases the displacement range of oil well pump, and can achieve the purpose that energy-efficient.
Description of the drawings
Fig. 1 is the work structure diagram of the utility model;
Fig. 2 is the spiral-tube body construction schematic diagram of the utility model.
In figure:1. sucker rod, 2. top connections, 3. driving screw rods, 4. clamping caps, steering mechanism on 5., 6. rotors, 7. is fixed Son, 8. times steering mechanism, 9. oil pipes, 10. oil storage outer tubes, 11. lower contacts, 12. oil well pumps.
Specific implementation mode
The utility model is described further below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of rod pumping pump of the utility model and ground driving screw pump combined type oil pumping system, mainly Including upper and lower two parts, top half is ground driving screw pump, and lower half portion is oil well pump 12, and ground driving screw pump includes Oil pipe 9, sucker rod 1, driving screw rod 3, upper steering mechanism 5, screw pump rotor 6, screw pump stator 7, lower steering mechanism 8.Driving 3 upper and lower side of screw rod is fixedly connected on by top connection 2 and lower contact 11 on sucker rod 1 respectively, 1 lower end of lower part sucker rod and oil pumping 12 connection of pump, 3 surface of driving screw rod are equipped with screw thread.6 center of screw pump rotor is equipped with vertical cavity, the driving Screw rod 3 passes through the cavity.The upper end of screw pump rotor 6, the center of lower end are respectively equipped with rotatable 5 and of upper steering mechanism Lower steering mechanism 8, and upper steering mechanism 5 and lower steering mechanism 8 are pressed on screw pump rotor 6 by clamping cap 4.
As shown in Fig. 2, the upper steering mechanism 5 is identical with lower 8 structure of steering mechanism, including spiral-tube ontology, spiral Cylinder inner body wall is equipped with steep-pitch thread, and the screw thread on 3 surface of driving screw rod matches cooperation with the steep-pitch thread and reached To the effect of driving.Spiral-tube body outer wall is equipped with unidirectional ratchet, and the screw pump rotor 6 is internally provided with unidirectional ratchet and spiral shell The unidirectional ratchet of rotation cylinder body outer wall is meshed to ensure that transmission is unidirectional.Sucker rod 1 moves downward through driving screw rod 3 6 down stroke single direction rotation of screw pump rotor is driven with upper steering mechanism 5, lower steering mechanism 8, screw pump oil pumping, sucker rod 1 is upwards When movement, screw pump rotor 6 does not rotate when upstroke, screw rod air pump inoperative.Screw pump is connect by oil pipe 9 with oil well pump 12, spiral shell Oil pipe 9 is externally provided with oil storage outer tube 10 at bar pump, and 9 lower end of oil pipe at oil storage outer tube 10 is connected to equipped with through-hole with oil storage outer tube 10, Through-hole is located at the lower section of screw pump stator 7.
When upstroke, when ground pumping unit drives driving screw rod 3, oil pump plunger piston uplink by sucker rod 1, oil well pump 12 Internal volume becomes larger, pressure reduction, and valve opening is fixed in oil well pump 12, and crude oil is inhaled into oil well pump 12, upper steering mechanism 5, under Steering mechanism 8 rotates under the driving of driving screw rod 3, at this time upper steering mechanism 5, unidirectional ratchet and spiral shell in lower steering mechanism 8 Unidirectional ratchet inside bar pump rotor 6 does not engage, therefore screw pump rotor 6 does not rotate, screw rod air pump inoperative, and oil well pump 12 is extracted out Crude oil enter in oil storage outer tube 10 below the screw pump stator 7;Conversely, sucker rod 1 drives 12 plunger of oil well pump when down stroke When downlink, 12 internal volume of oil well pump becomes smaller, and pressure increases, and travelling valve is opened in oil well pump 12, and crude oil is out of oil well pump 12 to oil Pipe 9 is discharged, and upper steering mechanism 5, lower steering mechanism 8 rotate under the driving of driving screw rod 3, at this time upper steering mechanism 5, lower steering Unidirectional ratchet in mechanism 8 is meshed with the unidirectional ratchet on screw pump rotor 6 drives screw pump rotor 6 to rotate, to store up Liquid in oily outer tube 10 is evacuated to 7 top of screw pump stator, finally drains into ground, to achieve the purpose that relay is pumped.

Claims (5)

1. a kind of rod pumping pump and ground driving screw pump combined type oil pumping system, which is characterized in that include mainly upper and lower two Part, top half are screw pump, and lower half portion is oil well pump (12);Screw pump includes driving screw rod (3), upper steering mechanism (5), screw pump rotor (6), screw pump stator (7), lower steering mechanism (8);Described driving screw rod (3) upper and lower side passes through respectively Top connection (2) and lower contact (11) are connect with sucker rod (1), and sucker rod (1) lower end is connect with oil well pump (12);The screw rod Pump rotor (6) center is equipped with vertical cavity, and driving screw rod (3) passes through the cavity;The upper end of screw pump rotor (6), under The center at end is respectively equipped with rotatable upper steering mechanism (5) and lower steering mechanism (8), and by clamping cap (4) by upper steering Mechanism (5) and lower steering mechanism (8) are pressed on screw pump rotor (6);Oil pipe (9) at screw pump is externally provided with oil storage outer tube (10), the oil pipe (9) at oil storage outer tube (10) is connected to equipped with through-hole with oil storage outer tube (10), and through-hole is located at screw pump stator (7) lower section;Screw pump is connect by the oil pipe (9) with oil well pump (12).
2. a kind of rod pumping pump according to claim 1 and ground driving screw pump combined type oil pumping system, feature It is, described driving screw rod (3) surface is equipped with screw thread.
3. a kind of rod pumping pump according to claim 1 or 2 and ground driving screw pump combined type oil pumping system, special Sign is that the upper steering mechanism (5) is identical with lower steering mechanism's (8) structure, including spiral-tube ontology, in spiral-tube ontology Wall is equipped with steep-pitch thread, and outer wall is equipped with unidirectional ratchet;The steep-pitch thread and the screw thread on driving screw rod (3) surface are matched It closes.
4. a kind of rod pumping pump according to claim 1 and ground driving screw pump combined type oil pumping system, feature It is, the screw pump rotor (6) is internally provided with unidirectional ratchet and is meshed with the unidirectional ratchet of spiral-tube body outer wall.
5. a kind of rod pumping pump according to claim 1 and ground driving screw pump combined type oil pumping system, feature It is, sucker rod (1) moves downward through driving screw rod (3) and upper steering mechanism (5), lower steering mechanism (8) drive screw rod Pump rotor (6) down stroke single direction rotation, screw pump oil pumping, when sucker rod (1) moves upwards, screw pump rotor (6) does not rotate, spiral shell Bar air pump inoperative.
CN201820019828.5U 2018-01-06 2018-01-06 A kind of rod pumping pump and ground driving screw pump combined type oil pumping system Active CN207673502U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820019828.5U CN207673502U (en) 2018-01-06 2018-01-06 A kind of rod pumping pump and ground driving screw pump combined type oil pumping system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820019828.5U CN207673502U (en) 2018-01-06 2018-01-06 A kind of rod pumping pump and ground driving screw pump combined type oil pumping system

Publications (1)

Publication Number Publication Date
CN207673502U true CN207673502U (en) 2018-07-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820019828.5U Active CN207673502U (en) 2018-01-06 2018-01-06 A kind of rod pumping pump and ground driving screw pump combined type oil pumping system

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108223331A (en) * 2018-01-06 2018-06-29 西南石油大学 A kind of rod pumping pump and ground driving screw pump combined type oil pumping system
CN108843253A (en) * 2018-08-01 2018-11-20 西南石油大学 A kind of compound lifting pumping unit oil pipe in underground and oil storing tube jointing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108223331A (en) * 2018-01-06 2018-06-29 西南石油大学 A kind of rod pumping pump and ground driving screw pump combined type oil pumping system
CN108223331B (en) * 2018-01-06 2023-12-26 西南石油大学 Combined oil pumping system of rod oil pump and ground driving screw pump
CN108843253A (en) * 2018-08-01 2018-11-20 西南石油大学 A kind of compound lifting pumping unit oil pipe in underground and oil storing tube jointing

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