CN202578598U - Oil well vibration swabbing production increase device - Google Patents

Abstract

The utility model provides an oil well vibration swabbing production increase device, wherein the lower end of a positive pressure pulser is connected with a liquid delivery central pipe, and two opposing rubber cups are sheathed on the positive pressure pulser so as to compose a floating piston assembly; a pulse valve ball is arranged in the positive pressure pulser; overcurrent openings are evenly arranged along the periphery of the positive pressure pulser; the lower end of the liquid delivery central pipe is connected with a negative pressure pulser which is internally provided with a check valve; the upper and lower ends of the negative pressure pulser is provided with crude oil channels, and the periphery thereof is evenly provided with liquid inlet holes; the negative pressure pulser is connected with a centering guide core tube; a difference slot wiper block is sheathed on the outer layer of the centering guide core tube; and the lower end of the difference slot wiper block is connected with a lower joint. According to the device, positive and negative pressure bidirectional pulses can be generated simultaneously in the pumping well due to the adoption of the floating piston assembly composed of the positive pressure pulser and other parts, when at the upstroke of the pumping unit, negative pressure pulses are generated for swabbing the crude oil; when at the down stroke of the pumping unit, positive pressure pulses are generated to conduct reverse impact on the contamination particles blocking the oil layer at the immediate vicinity of wellbore, so that the filtration capacity of the immediate vicinity of wellbore can be improved effectively so as to play the role of oil layer broken down and increase the crude oil output of the oil well.

Description

A kind of oil well vibrations pumping increasing device

Technical field

The utility model provides a kind of oil well vibrations pumping increasing device, is that the structure function of existing oil increasing device, increasing device is improved, and belongs to oil field oil recovery machiner technical field.

Background technology

At present; Can be used for the oil well vibration oil increasing device that the mechanical-physical method realizes the raising the output of oil well pulse release; With pump pulse release increasing device, underbalance pulse plugging removal and stimulation device etc., its common characteristic is mainly to realize cutting off fluid column in the pit shaft through rubber tube and vibrating reed; During upstroke, closed check valve produces crude oil in the underbalance pulse suction oil reservoir.One-way valve opens during down stroke, crude oil imports the packing element upper end through central tube, does not play any function during down stroke, has wasted this one-stroke energy.In the work in the well during sand setting, rubber tube and be prone to block quits work; Tubing string is carried to be come up because of blocking when well workover; The well that causes the accident, vibrating reed can not produce pulse function because of diameter less than the pit shaft internal diameter, just at present oil increasing device, increase the single pumping function of oily device; The undesirable efficient of oil well production increasing is low can't to solve oil reservoir pore throat passage blockage problem at all, does not in fact possess the oil layer unblocking function.When flowing around the oil well in oil reservoir because of crude oil, some impurity in the crude oil, particle can stop up adjacent to oil well area oil reservoir passage, and this is one of them reason that causes oil well output to descend.

Summary of the invention

The utility model provides a kind of oil well vibrations pumping increasing device, and it is not good to oil well pulse release effect of increasing production to have solved the existing machinery physical method, general simple function structure, can not be effectively to oil layer unblocking be prone to block, eccentric wear decreases short shortcoming of life-span.

The disclosed oil well vibrations of the utility model pumping increasing device, technical solution is following:

By anti-your ball, drain central tube, washing pipe, leather cup pallet, floating piston, leather cup pressure ring, rubber cup, spherical guiding valve, spherical valve seat, anti-that of single current, underbalance pulse device, centralizer core pipe, difference groove wiper block, the lower contact of top connection, positive pressure pulse device, pulse, cross oil groove, the liquid slotted hole form; Wherein,

Top connection is arranged on the upper end of positive pressure pulse device; The positive pressure pulse device connects the drain central tube for the tubular lower end; Drain central tube upper/lower terminal had the liquid slotted hole; Be with two counterpart rubber cups outward and constitute floating piston, leather cup pressure ring and leather cup pallet are fixed on two rubber cups on the washing pipe, form the floating piston assembly; The anti-that of the built-in pulse of positive pressure pulse device ball, peripheral uniform ring was wound with head piece; Anti-your ball seat of pulse drops on the tongue and groove of drain central tube upper end; Be provided with anti-that ball seat in the tube of top; Drain central tube lower end connects the underbalance pulse device, and to be spherical valve seat close sealing function with playing after the lower end ball-type guiding valve of floating piston contacts in the upper surface of underbalance pulse device; The underbalance pulse device is a tubular, in be provided with single current anti-you, upper and lower side is provided with the crude oil passage; Periphery evenly has inlet opening, and the bottom of underbalance pulse device is connected with centralizer core pipe, and centralizer core outer tube layer is with poor groove wiper block; Difference groove wiper block was provided with oil groove, played centralizing function, avoided the floating piston eccentric wear to decrease; Increase the service life, difference groove wiper block lower end is connected with lower contact, is provided with through hole in the lower contact and plays the overcurrent effect.

In the utility model, the drain central tube plays to connect and connects the underbalance pulse device under the positive pressure pulse device, and drain central tube upper/lower terminal had the liquid slotted hole, was with two opposing cup floating pistons outward.Leather cup pressure ring and leather cup pallet are fixed on two rubber cups on the washing pipe, form the floating piston assembly.When upstroke; This moment, floating piston lower end surface guiding valve contacted with underbalance pulse device spherical valve seat coupling sealing, and drain central tube lower end feed liquor slotted hole is closed simultaneously, forms underbalance pulse pumping crude oil.When down stroke; Move on the floating piston this moment with positive pressure pulse device coupling sealing and contact, drain central tube top feed liquor slotted hole is closed, and bottom feed liquor slotted hole is opened, the anti-that of positive pressure pulse device ball.On drain central tube fluid column promotes, move the outlet of sealing ball seat, moment produces positive pressure pulse, impacts oil reservoir impurity, particle, plays the oil layer unblocking effect, effectively improves oil well output.

The good effect of the utility model is: the floating piston assembly that parts such as employing positive pressure pulse device constitute, realized producing simultaneously in the pumpingh well malleation, negative pressure bidirectional pulse, and when the oil pumper upstroke, produce underbalance pulse pumping crude oil; Produce positive pressure pulse during down stroke, adjacent to oil well area oil layer blocking impurity particle is carried out reverse impact, can effectively dredge the near wellbore zone percolation ability, play the oil layer unblocking effect, increase the oil well crude output.

Description of drawings

Fig. 1 is the utility model structure principle chart;

Among the figure, 1, top connection; 2, positive pressure pulse device arteries and veins; 3, dash anti-that ball; 4, drain central tube; 5, washing pipe; 6, leather cup pallet; 7, floating piston; 8, leather cup pressure ring; 9, rubber cup; 10, spherical guiding valve; 11, spherical valve seat; 12, the anti-that of single current; 13, underbalance pulse device; 14, centralizer core pipe; 15, differ from the groove wiper block; 16, lower contact; 17, cross oil groove; 18, cross the liquid slotted hole.

The specific embodiment

Embodiment 1

According to shown in Figure 1, the utility model by anti-your ball 3 of top connection 1, positive pressure pulse device 2, pulse, drain central tube 4, washing pipe 5, leather cup pallet 6, floating piston 7, leather cup pressure ring 8, rubber cup 9, spherical guiding valve 10, spherical valve seat 11, single current anti-you 12, underbalance pulse device 13, centralizer core pipe 14, difference groove wiper block 15, lower contact 16, cross oil groove 17, cross liquid slotted hole 18 and form.

Top connection 1 is arranged on the upper end of positive pressure pulse device 2, is connected with tubing string when go into the well in top connection 1 upper end, is provided with partition, blocking-up tubing string liquid; And as the space of sand setting; Positive pressure pulse device 2 connects drain central tube 4 for the tubular lower end; Drain central tube 4 upper/lower terminals had liquid slotted hole 18; Be with two counterpart rubber cups 9 outward and constitute floating piston, leather cup pressure ring 8 is fixed on two rubber cups 9 on the washing pipe 5 with leather cup pallet 6, forms the floating piston assembly; The anti-that of positive pressure pulse device 2 built-in pulses ball 3, peripheral uniform ring is wound with 4 and crosses head piece.Anti-your ball 3 of pulse is located on the drain central tube 4 upper end tongue and grooves; Be provided with anti-that ball seat in the tube of top; Drain central tube 4 lower ends connect underbalance pulse device 13, and to be spherical valve seat 11 close sealing function with playing after the lower end ball-type guiding valve 10 of floating piston 7 contacts in the upper surface of underbalance pulse device 13; Underbalance pulse device 13 is a tubular, in be provided with single current anti-you 12, upper and lower side is provided with the crude oil passage, periphery evenly has 4 inlet openings; The bottom of underbalance pulse device 13 is connected with centralizer core pipe 14, and centralizer core pipe 14 skins are with poor groove wiper block 15, and difference groove wiper block 15 is provided with 8 and crosses oil groove 17; Play centralizing function, avoid the floating piston eccentric wear to decrease, increase the service life; Difference groove wiper block 15 lower ends are connected with lower contact 16, are provided with through hole in the lower contact 16, play the overcurrent effect.

The course of work of the utility model is following:

The positive pressure pulse oil layer unblocking

Floating piston 7 rises to seal and is suspended on the well inner sleeve inwall, when down stroke; Tubing string elongation, it is powerful descending to promote floating piston 7, and this moment, floating piston 7 upper end contacted sealing with 2 lower end surface moments of positive pressure pulse device; Drain central tube 4 bottom feed liquor slotted holes 18 are opened, and the top of feed liquor slotted hole 18 is closed, and drain central tube 4 liquid upper reaches promote to move on anti-your ball 3 of positive pressure pulse device; Moment is that ball seat port closing instead, forms positive pressure pulse, fluid column moment impact oil reservoir in the well; Impurity, particle in the oil reservoir are carried out repeatedly repeated stock of multifrequency, and anti-your ball 3 of the pulse of underbalance pulse device 13 is at this moment opened, and flows into drain central tube 4 on the liquid; Realize oil layer unblocking, crude oil raising the output purpose.

When the utility model moved in well, difference groove wiper block 15 placed the middle position with the utility model at Nei Jing, prevented that eccentric wear from decreasing to play a protective role.

Underbalance pulse pumping crude oil

According to shown in Figure 1, when upstroke; Tubing string shortens; Drag on this increasing device drain central tube 4 and move, the spherical valve seat 11 in underbalance pulse device 13 tops this moment contacts with floating piston 7 lower end ball-type guiding valve 11 couplings closes, and drain central tube 4 bottom feed liquor slotted holes 18 are by floating piston 7 sealings; The anti-that 12 of the single current of underbalance pulse device 13 is in closed condition with valve seat; On the moving the utility model of oil pipe column bracket is in well, move, moment this moment produces underbalance pulse, and pumping crude oil is realized the oil well production increasing purpose.

Anti-your ball 3 of the pulse of positive pressure pulse device 2 at this moment freely is located in emboss pit place, drain central tube 4 upper end, and passage is in open mode.

Claims (1)

1. oil well vibrations pumping increasing device is characterized in that: by anti-your ball, drain central tube, washing pipe, leather cup pallet, floating piston, leather cup pressure ring, rubber cup, spherical guiding valve, spherical valve seat, anti-that of single current, underbalance pulse device, centralizer core pipe, difference groove wiper block, the lower contact of top connection, positive pressure pulse device, pulse, cross oil groove, the liquid slotted hole form; Wherein,

Top connection is arranged on the upper end of positive pressure pulse device; The positive pressure pulse device connects the drain central tube for the tubular lower end; Drain central tube upper/lower terminal had the liquid slotted hole; Be with two counterpart rubber cups outward and constitute floating piston, leather cup pressure ring and leather cup pallet are fixed on two rubber cups on the washing pipe, form the floating piston assembly; The anti-that of the built-in pulse of positive pressure pulse device ball, peripheral uniform ring was wound with head piece; Anti-your ball seat of pulse drops on the tongue and groove of drain central tube upper end; Be provided with anti-that ball seat in the tube of top; Drain central tube lower end connects the underbalance pulse device, and to be spherical valve seat close sealing function with playing after the lower end ball-type guiding valve of floating piston contacts in the upper surface of underbalance pulse device; The underbalance pulse device is a tubular, in be provided with single current anti-you, upper and lower side is provided with the crude oil passage, periphery evenly has inlet opening, the bottom of underbalance pulse device is connected with centralizer core pipe, centralizer core outer tube layer is with poor groove wiper block, differs from the groove wiper block and is provided with oil groove; Difference groove wiper block lower end is connected with lower contact, is provided with through hole in the lower contact.