CN105134569B

CN105134569B - Tubing pump

Info

Publication number: CN105134569B
Application number: CN201510604555.1A
Authority: CN
Inventors: 赵晓亮; 廖新维; 周冶鋆; 穆凌雨; 张凤远; 周星泽; 赵宁
Original assignee: China University of Petroleum Beijing
Current assignee: China University of Petroleum Beijing
Priority date: 2015-09-21
Filing date: 2015-09-21
Publication date: 2017-12-08
Anticipated expiration: 2035-09-21
Also published as: CN105134569A

Abstract

The present invention relates to oil and gas gathering technical field, provide a kind of tubing pump, the pump housing includes pump barrel and the plunger being plugged in pump barrel, valve ball and valve seat are equipped with pump barrel and plunger, pass through plunger reciprocatingly sliding in pump barrel, two groups of valve balls replace opening and closing with valve seat, so as to treat the upward pumping of pumping crude oil；In addition, cyclone structure is also respectively provided with the top of two groups of valve balls and valve seat, when pumping crude oil passes through, cyclone structure treats the effect that pumping crude oil forms stirring, makes to treat that pumping crude oil forms vortex, makes coal dust or sand suspension in liquid stream, and carried away by liquid stream, holddown problem can be so reduced, and preventing and treating coal dust or sand sedimentation bury valve ball and valve seat, ensure the normal work of oil well pump.

Description

Tubing pump

Technical field

The present invention relates to oil and gas gathering technical field, specifically provides a kind of tubing pump.

Background technology

Oil field routine oil well pump is in coal bed gas and easy sand production petroleum reservoir mining in use, because containing big in the liquid of pumping Coal dust and fine sand are measured, so in pumping process, holddown easily occurs, and coal dust and fine sand are easily deposited on around fixed valve ball, Valve ball is failed, after pumping for a period of time, then need to stop taking out, recycle rod string to tap standing valve cover, shake is fallen attached on valve ball The coal dust and fine sand；When stopping taking out, standing valve is easily buried by coal dust and fine sand, causes to open when taking out that oil well pump can not be just again Often work.

The content of the invention

(1) technical problems to be solved

The invention solves be oil well pump of the prior art easily to occur the skill of card sand during oil pumping or pumping Art problem.

(2) technical scheme

To achieve the above object, the invention provides a kind of tubing pump, including：

Pump barrel, the bottom of the pump barrel, which is insinuated into, treats in pumping crude oil, and the inside of the pump barrel is provided with the first valve seat, described The center of first valve seat is provided with first through hole, and the first valve ball is provided with the pump barrel and positioned at the top of first valve seat, First valve ball is used to cooperatively form closure with the first through hole；

Plunger, the plunger are tubular structure, are plugged in the pump barrel and positioned at the top of first valve seat, institute The outer wall for stating plunger is slidingly sealed with the inwall of the pump barrel and is connected, and the inside of the plunger is provided with the second valve seat, and described second The center of valve seat is provided with the second through hole, and the second valve ball is provided with the plunger and positioned at the top of second valve seat, described Second valve ball is used to cooperatively form closure with second through hole；

First cyclone structure, first cyclone structure are arranged in the pump barrel and positioned at the upper of first valve ball Side, first cyclone structure are used to make to treat that pumping crude oil forms vortex by the first through hole；And

Second cyclone structure, second cyclone structure are arranged in the plunger and positioned at the upper of second valve ball Side, second cyclone structure are used to make to treat that pumping crude oil forms vortex by second through hole.

Preferably, the top side of the first through hole and the second through hole is spherical structure.

Preferably, first cyclone structure and the second cyclone structure include inner ring and multiple flabellums, multiple fans Leaf distribution is connected on the outer wall of the inner ring, and the inner ring is connected in the pump barrel or plunger by multiple flabellums Heart position, the diameter of the inner ring are less than the diameter of first valve ball and the second valve ball.

(3) beneficial effect

A kind of tubing pump provided by the invention, the pump housing include pump barrel and the plunger that is plugged in pump barrel, pump barrel and Valve ball and valve seat are equipped with plunger, by plunger reciprocatingly sliding in pump barrel, two groups of valve balls replace unlatching with valve seat and closed Close, so as to which the upward pumping of pumping crude oil will be treated；In addition, cyclone structure is also respectively provided with the top of two groups of valve balls and valve seat, When pumping crude oil by when, cyclone structure treats the effect that pumping crude oil forms stirring, makes to treat that pumping crude oil forms vortex, makes Coal dust or sand suspension carry away in liquid stream, and by liquid stream, can so reduce holddown problem, and preventing and treating coal dust or sand grains sink Form sediment and bury valve ball and valve seat, ensure the normal work of oil well pump.

Brief description of the drawings

Fig. 1 is a kind of schematic diagram of tubing pump of the embodiment of the present invention.

Reference：

1st, pump barrel；2nd, plunger；3rd, the second valve seat；4th, the second valve ball；5th, the first valve seat；6th, the first valve ball；7th, the first eddy flow Structure；8th, the second cyclone structure.

Embodiment

With reference to the accompanying drawings and examples, the embodiment of the present invention is described in further detail.Implement below Example is used to illustrate the present invention, but is not limited to the scope of the present invention.

In the description of the invention, it is necessary to which explanation, unless otherwise clearly defined and limited, term " connection " should be done It broadly understood, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can be joined directly together, It can also be indirectly connected by intermediary.For the ordinary skill in the art, can be understood with concrete condition above-mentioned The concrete meaning of term in the present invention.

As shown in figure 1, provided by the invention, the invention provides a kind of tubing pump, including pump barrel 1 and plunger 2；Pump Cylinder 1 is tubular structure, and bottom, which is insinuated into, treats in pumping crude oil, and the inside of pump barrel 1 is provided with the first valve seat 5, and the first valve seat 5 is ring-type Structure, center are provided with first through hole, fixed between the outer rim of the first valve seat 5 and the inwall of pump barrel 1 and sealed connection；In pump barrel 1 Interior and positioned at the first valve seat 5 top is provided with the first valve ball 6, the diameter of the first valve ball 6 more than first through hole diameter, first Valve ball 6 is used to cooperatively form closure with the first through hole.

Plunger 2 is tubular structure, is plugged in pump barrel 1 and positioned at the top of the first valve seat 5, the outer wall and pump barrel of plunger 2 1 inwall is slidingly sealed connection, and the inside of plunger 2 is provided with the second valve seat 3, and the second valve seat 3 is cyclic structure, and center is provided with second The inwall of through hole, outer rim and plunger 2 is fixed and is tightly connected, and second is provided with plunger 2 and positioned at the top of the second valve seat 3 Valve ball 4, the second valve ball 4 are used to cooperatively form closure with the second through hole.

When the bottom of pump barrel 1 is insinuated into when in pumping crude oil, treat that pumping crude oil is poured in the first valve seat 5 by first through hole In the pump barrel 1 of top, this seasonal slide downward of plunger 2, it is inserted into the bottom of plunger 2 and treats in pump barrel 1 to need in pumping crude oil, The top treated pumping crude oil to wash the second valve ball 4 open and poured in the second valve seat 3；Now lifting plunger 2, the second valve ball 4 exist upwards Formed and blocked with the second through hole in the presence of pressure, meanwhile, negative pressure is formed in the pump barrel 1 of the lower section of the second valve seat 3, makes to wait to take out Crude oil is drawn to continue to pour in pump barrel 1.Stop lifting when plunger 2 rises to setting height, then make the slide downward of plunger 2, Treat that pumping crude oil loses the effect of negative pressure and moved downward in pump barrel 1, it is logical that the first valve ball 6 blocks first under the effect of the pressure Hole, so as to prevent from treating letting out under pumping crude oil, plunger 2 then persistently reaches deep down into, until the depth for slipping down to setting lifts upwards again, So repeatedly, it will treat that pumping crude oil continues upward pumping.

Wherein, the first cyclone structure 7 is additionally provided with pump barrel 1 and positioned at the top of the first valve ball 6, the first eddy flow knot leans on Nearly first through hole is set, and when pumping crude oil is passing through first through hole, in the presence of the first cyclone structure 7, is made near at this Treat pumping crude oil formed vortex, thus play a part of stirring to crude oil, can so prevent the coal dust or sand grains in crude oil Precipitation buries valve ball valve seat, and oil well pump energy normal work when taking out is opened in guarantee next time.

Likewise, it is provided with the second cyclone structure 8, the second cyclone structure 8 in plunger 2 and positioned at the top of the second valve ball 4 For making to treat that pumping crude oil forms vortex by the second through hole, coal dust or sand suspension is set to be carried in liquid stream, and by liquid stream Walk, coal dust or sand sedimentation burial valve ball valve seat in crude oil are prevented with this.

Preferably, the top side of first through hole and the second through hole is spherical structure, is thus more bonded the first valve ball 6 and The contour structures of two valve balls 4, contribute to the positioning of the second valve ball 4 and the second valve ball 4, and sealing effectiveness when can lift closure.

First cyclone structure 7 and the second cyclone structure 8 include inner ring and multiple flabellums, and multiple flabellum distributions are connected to interior On the outer wall of circle, inner ring is connected to the center of pump barrel 1 or plunger 2 by multiple flabellums, and the diameter of inner ring is less than the first valve The diameter of the valve ball 4 of ball 6 and second.What multiple flabellums were used to make to pass through treats that pumping crude oil forms vortex, and inner ring is applied not only to more The fixation of individual blade, can also spacing effect be played to the first valve ball 6 or the second valve ball 4, prevent the first valve ball 6 and the second valve ball 4 and first valve seat 5 and the second valve seat 3 keep less distance, to be blocked in time when liquid flow path direction changes.

Further, since the first cyclone structure 7 and the second cyclone structure 8 are separately positioned on the first valve seat 5 and the second valve seat 3 Top, when liquid stream moves downward, now the first valve ball 6 and the second valve ball 4 will be in sealed condition, and now in the first rotation The lower section of the cyclone structure 8 of flow structure 7 and second can form whirlpool, the first valve ball 6, the second valve ball 4, first through hole and second respectively Through hole is just in the whirlpool, so as to effectively prevent the coal dust or sand sedimentation burial valve ball valve seat in crude oil.

Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, without departing from the technical principles of the invention, some improvement and replacement can also be made, these improve and replaced Also it should be regarded as protection scope of the present invention.

Claims

A kind of 1. tubing pump, it is characterised in that including：

Pump barrel (1), the bottom of the pump barrel (1), which is insinuated into, treats in pumping crude oil, and the inside of the pump barrel (1) is provided with the first valve seat (5), the center of first valve seat (5) is provided with first through hole, in the pump barrel (1) and positioned at first valve seat (5) Top is provided with the first valve ball (6), and first valve ball (6) is used to cooperatively form closure with the first through hole；

Plunger (2), the plunger (2) is tubular structure, is plugged in the pump barrel (1) and positioned at first valve seat (5) Top, the outer wall of the plunger (2) is slidingly sealed with the inwall of the pump barrel (1) to be connected, and the inside of the plunger (2) is provided with the Two valve seats (3), the center of second valve seat (3) are provided with the second through hole, in the plunger (2) and are located at second valve The top of seat (3) is provided with the second valve ball (4), and second valve ball (4) is used to cooperatively form closure with second through hole；

First cyclone structure (7), first cyclone structure (7) are arranged in the pump barrel (1) and are located at first valve ball (6) top, first cyclone structure (7) are used to make to treat that pumping crude oil forms vortex by the first through hole；And

Second cyclone structure (8), second cyclone structure (8) are arranged in the plunger (2) and are located at second valve ball (4) top, second cyclone structure (8) are used to make to treat that pumping crude oil forms vortex by second through hole；

First cyclone structure (7) and the second cyclone structure (8) include inner ring and multiple flabellums, multiple flabellum distributions It is connected on the outer wall of the inner ring, the inner ring is connected in the pump barrel (1) or plunger (2) by multiple flabellums Heart position, the diameter of the inner ring are less than the diameter of first valve ball (6) and the second valve ball (4).
2. tubing pump according to claim 1, it is characterised in that the top side of the first through hole and the second through hole is equal For spherical structure.