CN2791244Y

CN2791244Y - Magnetic suspension pump oil-feeding device

Info

Publication number: CN2791244Y
Application number: CN 200520008576
Authority: CN
Inventors: 王霄; 王荣和; 张培平; 王林; 王磊; 张荣国; 王国丙; 张荣华
Original assignee: 王国丙
Priority date: 2005-03-17
Filing date: 2005-03-17
Publication date: 2006-06-28
Anticipated expiration: 2015-03-17

Abstract

The utility model discloses a magnetic suspension pump oil-feeding device which is connected with an oil well pump of an oil well and is matched with a casing tube of the oil well. The device comprises a magnetic suspension pump and a leather cup packer, wherein the leather cup packer is arranged on a central tube and the opening faces upwards; the central tube is connected with an oil tube joint; the magnetic suspension pump comprises a piston, a piston seat, a valve ball and a spring, wherein the valve ball is adsorbed by a magnet erected at the lower end of the piston. Only one component of the leather cup needs to be changed on the same tube column to realize that the same tube column is lowered into oil wells with casing tubes of different diameters, and accordingly the frequency and the cost of lowering the well tube column are reduced through the principle that the leather cup is exchanged to change the diameter. The utility model can measure a dynamic liquid level during a normal running, and accordingly the defect that the dynamic liquid level can not be measured in the prior art is altered.

Description

The magnetcisuspension pump increases oily device

Technical field

The utility model relates to a kind of extracting device of oil of pumpingh well, particularly relates to the magnetcisuspension pump and increases oily device.

Background technology

In the pumpingh well of routine, because the liquid system of oil well pump lower end opens wide, exist the standing valve of the fluid column of mixing and gas column, shaft bottom and oil well pump at pumpingh well oil, sleeve pipe annular space near a certain amount of gas and mechanical admixture are arranged, its fluid state plays significant cushioning effect near the fluid valve, thereby influence the further raising of negative pressure, for the lower pumpingh well of reservoir permeability, its production capacity is low, the well-flushing situation of pumpingh well is also bad simultaneously, flushing fluid easily flows backwards to oilbearing stratum, polluted reservoir.

At the problems referred to above, the negative pressure extracting device of oil well of creation before the utility model creator, be that the patent No. is ZL92106273.7, it is to have packing element with one to have telescoping tube again, insertion tube is sealed the annular space of the tubing and casing of oil well, make the fuel-displaced tubing and casing annular space that do not enter in stratum, directly enter pump, more than the position of sealing, add the flow divider that to shunt up and down, reach can when the oil well well-flushing, not make flushing fluid flow into below the purpose of polluted reservoir, and under the pressure of chien shih oil stream at a flash when the piston stroking upward that reaches on the space basis of shutoff sleeve pipe at the oil pumper deep well pump on the stratum, oily stream during not shutoff of the energy force rate oil pipe space of pouring into pump barrel pours in the ability of pump barrel and strengthens, the oil production of so just having finished when installation negative pressure extracting device of oil ratio is not installed negative pressure extracting device of oil is big, effective, in addition can also with the former the same periodicity well-flushing of not installing that carries out, and well-flushing and can not make to flow under the flushing fluid and enter the stratum, reach not only well-flushing but also do not polluted the purpose on stratum.

Yet the device of above-mentioned patent formerly also comes with some shortcomings in long-term use, and for this reason, the utility model creator has carried out structural improvement on this basis.

The utility model content

The utility model is improved on the basis of original device, originally the Seventh Five-Year Plan one packer that uses is replaced with cup packer, in addition with the telescoping tube on the former tubing string, insertion tube, the flow divider stainless steel sleeve, component such as magnetic core valve seat, valve pocket save, and its structure and external form all have great innovation and breakthrough; Thereby solved deficiency of the prior art.

To achieve these goals, the technical solution adopted in the utility model is:

A kind of magnetcisuspension pump increases oily device, and it links to each other with the oil well pump of oil well, and is used with the sleeve pipe of oil well; It focuses on: this device includes magnetcisuspension pump and cup packer, and this cup packer is arranged on the central tube and opening makes progress, and this central tube is connected with oil connection; This magnetcisuspension pump comprises piston and piston seat, valve ball, reaches spring, and wherein this valve ball is by being erected at the magnet absorption of piston lower end.

Wherein: the opening diameter of described cup packer is that the diameter with each oil well casing is complementary, and is multiple model.

Cup packer on the described device is at least two.

Described cup packer formula is to be socketed on this central tube by pressure ring.

Described magnet is to be located at the piston lower end by a horizontal crotch.

Described horizontal sticking sets up one in order to push down the gland of magnet.

Because the utility model has adopted said structure, has more following beneficial effect:

1, the utility model adopts cup packer to replace original the Seventh Five-Year Plan one packer, exchange the principle that changes diameter by leather cup, on same tubing string, only need parts of change leather cup just can realize that same tubing string is lowered to the oil well of different-diameter sleeve pipe, thereby reduced the operation number of times and the expense of running string;

2, since in the prior art magnet and piston be not that one is installed, need extra some parts that increase to cooperate installation; And the utility model promptly is located at the exit of piston base, thereby realized being multiplied of oil mass by changing the fixed form of magnet by a horizontal crotch, and the process that also makes this valve ball fall to shutting ball seat is simultaneously accelerated, and setting effect greatly improves;

3, because the utility model has saved telescoping tube, insertion tube, flow divider stainless steel sleeve on the basis of original device, tens component such as magnetic core valve seat, valve pocket, thus make the structure of this device simplify greatly, its component reduce one times; And its length also has obvious shortening, so its cost also reduces greatly;

4, in addition, because the utility model is with leather cup rather than with compressing packing element, therefore having changed the past suppresses the compressing area sealing means that sets with ground, but the line style sealing is accomplished on the leather cup limit of adopting head of liquid, so just can G.I.H when implementing without any need for the facility apparatus, saved a large amount of expenses;

5, the utility model device well-flushing is tight, does not have diffusate to enter above the leather cup during well-flushing, and this just reaches all-in non-positive confinement, it can be at normal survey producing fluid level in service, thereby has changed the deficiency that prior art can not be surveyed producing fluid level.

Comprehensively above-mentioned, the utility model device is compared with former patented technology, has the great innovation in many places, below in conjunction with the drawings and specific embodiments the utility model is further described.

Description of drawings

Fig. 1 is the structural representation that the utility model magnetcisuspension pump increases oily device, and wherein part has been analysed and observe;

Fig. 2 is the utility model magnet installation site structural representation.

The specific embodiment

As shown in Figure 1, be the structural representation of the utility model embodiment, its specific embodiment is as follows: be lowered to the sleeve pipe 1 of oil well when the present embodiment device after, and oil well pump 18 ordinary production of oil well.It is when ordinary production, piston 19 and piston seat 2 are closed under the effect of spring 7, oil pipe 16 and sleeve pipe cup packer are disconnected more than 12, valve ball 9 is being adsorbed by magnet 8, so the oil 17 that comes out from the stratum enters the outer ring of the central tube 14 of packer through ball seat 11 valve balls 9 from the below of this device, two STHs of crossing magnet 8 enter oil well pump 18 through piston center hole, are pumped to ground.Because oil does not enter more than the casing packer, so the oil of oil reservoir is strengthened the perfusion ability of oil pipe.

In addition, the installation site of this magnet as shown in Figure 2, it is the exit that is located at piston base by a horizontal crotch, simultaneously sets up a gland again horizontal sticking, and avoids magnet to come off for pushing down magnet.Thereby realized being multiplied of oil mass, the process that also makes this valve ball fall to shutting ball seat is simultaneously accelerated, and sets effective.

When oil well was washed also, flushing fluid injected flushing fluid 20 with pump truck the oil pipe and the casing annulus 15 of oil wells from ground.Effect down cup packer 12 at pressure and fluid column opens, oil pipe and sleeve pipe are shut, impel flushing fluid 20 to enter the liquid inlet 4 of valve, liquid affacts the pressure-bearing surface 5 of piston again, compression spring 7 is descending behind piston 19 pressurizeds, piston 19 is opened with valve seat contact point 3, and flushing fluid 20 enters valve insertion 10 again.Enter on the flushing fluid part of inner chamber 10 and be advanced into pump 18, the valve ball 9 that a part is about to inhale on magnet 8 down washes out, and the valve ball 9 that is washed out drops on the ball seat on 11, shuts ball seat 11, makes all up purposes that reach flushing oil well integral tube post of flushing fluid.

Since the overall process of well-flushing make flushing fluid 20 can not flow to cup packer 12 below with ball seat 11 times.So flushing fluid can not enter stratum 17, wash the purpose of not polluting stratum 17 thereby reach.

Because leather cup 12 is upwards to dehisce, so be bowl seal when above formula line style sealing, downward impact liquid being arranged tight, and not during well-flushing stratum 17 fluid can not have the edge of tensioning to be deep into leather cup below 12 from leather cup 12, stratum 17 oil that reflect oil well return friendship condition (common name producing fluid level), this has just solved the purpose that oil pump is got data (producing fluid level), for producing pipeline, and how grasping down the pump degree of depth and created condition.

In sum, the utility model from application target, on the usefulness, viewpoint such as progressive and novelty sets forth, the practical improvement that it has, function enhancement and practical important document that novel Patent Law is emphasized have been met, shown in the implementation and accompanying drawing that the utility model is above, be one of the utility model preferred embodiment, be not to limit to the utility model with this, be with, such as with approximate, identical person such as structure of the present utility model, device, feature, all should belong to of the present utility model founding within purpose and the claim.

Claims

1, a kind of magnetcisuspension pump increases oily device, and it links to each other with the oil well pump of oil well, and is used with the sleeve pipe of oil well; It is characterized in that: this device includes magnetcisuspension pump and cup packer, and this cup packer is arranged on the central tube and opening makes progress, and this central tube is connected with oil connection; This magnetcisuspension pump comprises piston and piston seat, valve ball, reaches spring, and wherein this valve ball is by being erected at the magnet absorption of piston lower end.

2, magnetcisuspension pump as claimed in claim 1 increases oily device, it is characterized in that: the opening diameter of described cup packer is that the diameter with each oil well casing is complementary, and is multiple model.

3, magnetcisuspension pump as claimed in claim 1 increases oily device, it is characterized in that: the cup packer on the described device is at least two.

4, magnetcisuspension pump as claimed in claim 1 increases oily device, it is characterized in that: described cup packer formula is to be socketed on this central tube by pressure ring.

5, magnetcisuspension pump as claimed in claim 1 increases oily device, it is characterized in that: described magnet is to be located at the piston lower end by a horizontal crotch.

6, magnetcisuspension pump as claimed in claim 5 increases oily device, it is characterized in that: described horizontal fork two sets up one in order to push down the gland of magnet.