CN112628148A

CN112628148A - Oil field fracturing acidizing well cementation pump

Info

Publication number: CN112628148A
Application number: CN202011506293.2A
Authority: CN
Inventors: 沈奎; 梁峰
Original assignee: HUBEI PETROKH MACHINE MANUFACTURING CO LTD
Current assignee: HUBEI PETROKH MACHINE MANUFACTURING CO LTD
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-04-09
Anticipated expiration: 2040-12-18
Also published as: CN112628148B

Abstract

The invention provides an oilfield fracturing and acidizing cementing pump, which comprises a cementing pump body and a pretreatment device, wherein the pretreatment device comprises a treatment tank and a motor shell, the motor shell is fixedly arranged at the top of the treatment tank, the bottom of the treatment tank is fixedly connected with an output pipe, a motor is fixedly arranged in the motor shell, an output shaft of the motor is fixedly connected with a reverse spiral conveying rod, and the reverse spiral conveying rod is positioned on a central line of the treatment tank.

Description

Oil field fracturing acidizing well cementation pump

Technical Field

The invention belongs to the technical field of oilfield equipment, and particularly relates to an oilfield fracturing and acidizing well cementing pump.

Background

The well cementation is a construction operation of setting a casing in a well and injecting cement into an annular space between the well and the casing, and is an indispensable important link in the process of well drilling and completion operation, and comprises casing setting and cement injection, a well cementation pump is needed when cement is injected, and in the process of injection, if cement is deposited and layered or large impurities exist in the cement, the normal use of the well cementation pump and the quality of cement injection can be influenced.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides the oil field fracturing acidification well cementing pump which is reasonable in design, the reverse spiral conveying rod can convey cement upwards in the center of the treatment tank, and the cement is conveyed upwards from the center and gradually rolls and diffuses around, so that the cement in the treatment tank can be effectively prevented from precipitating and layering, and the quality of the cement in use is ensured.

In order to achieve the purpose, the invention is realized by the following technical scheme: an oilfield fracturing and acidizing well cementing pump comprises a well cementing pump body and a pretreatment device, wherein the pretreatment device comprises a treatment tank and a motor shell, the motor shell is fixedly arranged at the top of the treatment tank, an output pipe is fixedly connected at the bottom of the treatment tank, a motor is fixedly arranged in the motor shell, a reverse spiral conveying rod is fixedly connected onto an output shaft of the motor and is positioned on a central line of the treatment tank, fixing rods are fixedly arranged on the inner side walls of two sides of the output pipe, a limiting ring is fixedly arranged between the fixing rods on the inner side walls of two sides of the output pipe, the limiting ring is movably sleeved at the bottom of the reverse spiral conveying rod, a plurality of installation rods are fixedly arranged on the inner side wall of the treatment tank, fixing rings are fixedly arranged between the installation rods, and a net-shaped filter frame is fixedly arranged at the bottom of the fixing rings, the netted filter frame is fixedly connected with the inner side wall of the treatment tank, and a front baffle is embedded in the front side of the treatment tank through bolts.

As a preferred embodiment of the invention, the inner edge side of the bottom of the treatment tank is provided with a conveying arc.

In a preferred embodiment of the present invention, an inclined addition pipe is fixedly connected to one side of the top of the treatment tank, a horizontal addition pipe is fixedly connected to one end of the inclined addition pipe, a connecting pipe is fixedly connected to one end of the horizontal addition pipe, a straight addition pipe is fixedly connected to the top of the horizontal addition pipe, and a feed hopper is installed at the top of the straight addition pipe.

As a preferred embodiment of the present invention, a connecting flange is fixedly installed at the bottom of the output pipe, and a plurality of screw holes are formed at the edge of the connecting flange.

As a preferred embodiment of the present invention, the number of the mounting bars is 8.

The invention has the beneficial effects that: the invention discloses an oilfield fracturing and acidizing well cementing pump which comprises a well cementing pump body, a pretreatment device, a treatment tank, a motor shell, an output pipe, a motor, a reverse spiral conveying rod, a fixing rod, a limiting ring, an installation rod, a fixing ring, a net-shaped filter frame, a transverse adding pipe, a connecting pipe, a feeding hopper, a front baffle, a connecting flange, a screw hole, an inclined adding pipe, a straight adding pipe and a conveying arc.

1. This reverse auger delivery pole of oil field fracturing acidizing well cementation pump can upwards carry cement at the center of handling jar, and cement upwards carries and rolls the diffusion around gradually from the center to can prevent effectively that the cement in the handling jar from producing sediment and layering, quality when guaranteeing the cement use.

2. This oil field fracturing acidizing well cementation pump's treatment tank's interior limit side fixed mounting has netted filter frame, when reverse spiral delivery pole upwards carried cement, the cement of netted filter frame bottom is owing to upwards carried partly, and partly through output tube output, therefore, be in the trend that reduces all the time, the pressure at netted filter frame top is greater than the pressure of bottom, thereby can make cement more quick filtered by netted filter frame, and can also partly loop filter, can get rid of the great debris in the cement effectively, avoid influencing the normal work of well cementation pump body.

3. After the front baffle of the oil field fracturing acidizing well cementing pump is disassembled, sundries in the net-shaped filter frame can be cleaned, so that the filtering performance and the efficiency of the net-shaped filter frame cannot be excessively reduced, the blockage is prevented, and the oil field fracturing acidizing well cementing pump is convenient and fast.

Drawings

FIG. 1 is a schematic structural diagram of a pretreatment device of an oilfield fracturing acidizing well cementing pump;

FIG. 2 is a schematic cross-sectional view of a pre-treatment apparatus for an oilfield frac acidizing well cementing pump;

FIG. 3 is a schematic cross-sectional view of a treatment tank of an oilfield frac acidizing well cementing pump;

FIG. 4 is a schematic structural view of an oilfield fracturing acidizing cementing pump;

in the figure: 1. a cementing pump body; 2. a pretreatment device; 3. a treatment tank; 4. a motor housing; 5. an output pipe; 6. an electric motor; 7. a reverse screw conveying rod; 8. fixing the rod; 9. a limiting ring; 10. mounting a rod; 11. a fixing ring; 12. a mesh-shaped filter frame; 13. a transverse adding pipe; 14. a connecting pipe; 15. a feed hopper; 16. a front baffle; 17. a connecting flange; 18. a screw hole; 19. inclining the adding pipe; 20. a straight addition pipe; 21. and (4) conveying an arc.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Referring to fig. 1 to 4, the present invention provides a technical solution: an oil field fracturing and acidizing well cementing pump comprises a well cementing pump body 1 and a pretreatment device 2, wherein the pretreatment device 2 comprises a treatment tank 3 and a motor shell 4, the motor shell 4 is fixedly arranged at the top of the treatment tank 3, the bottom of the treatment tank 3 is fixedly connected with an output pipe 5, a motor 6 is fixedly arranged in the motor shell 4, an output shaft of the motor 6 is fixedly connected with a reverse spiral conveying rod 7, the reverse spiral conveying rod 7 is positioned on a central line of the treatment tank 3, fixing rods 8 are fixedly arranged on the inner side walls at two sides of the output pipe 5, a limiting ring 9 is fixedly arranged between the fixing rods 8 on the inner side walls at two sides of the output pipe 5, the limiting ring 9 is movably sleeved at the bottom of the reverse spiral conveying rod 7, a plurality of installation rods 10 are fixedly arranged on the inner side wall of the treatment tank 3, and a fixing ring 11 is fixedly arranged between the installation rods 10, the bottom fixed mounting of solid fixed ring 11 has netted filter frame 12, netted filter frame 12 and the inside wall fixed connection who handles jar 3, the front side of handling jar 3 is inlayed through the bolt and is had preceding baffle 16.

In a preferred embodiment of the present invention, the inner edge side of the bottom of the treatment tank 3 is provided with a conveying arc 21.

In a preferred embodiment of the present invention, an inclined addition pipe 19 is fixedly connected to one side of the top of the treatment tank 3, a horizontal addition pipe 13 is fixedly connected to one end of the inclined addition pipe 19, a connecting pipe 14 is fixedly connected to one end of the horizontal addition pipe 13, a straight addition pipe 20 is fixedly connected to the top of the horizontal addition pipe 13, and a feed hopper 15 is installed on the top of the straight addition pipe 20, and when the treatment tank is used, cement is added through the feed hopper 15 or is connected to a cement supply device through the connecting pipe 14.

In a preferred embodiment of the present invention, a connecting flange 17 is fixedly installed at the bottom of the output pipe 5, a plurality of screw holes 18 are opened at the edge of the connecting flange 17, the connecting flange 17 is used for connecting with an input mechanism of the well cementation pump body 1, and after the connection is completed, the motor 6 is connected with a control system of the well cementation pump body 1.

In a preferred embodiment of the present invention, the number of the mounting bars 10 is 8.

As a preferred embodiment of the invention, the reverse spiral conveying rod 7 can convey cement upwards in the center of the processing tank 3, when the cement in the processing tank 3 reaches a certain amount, the control system of the cementing pump body 1 controls the motor 6 to be turned on, the motor 6 drives the reverse spiral conveying rod 7 to rotate, the reverse spiral conveying rod 7 conveys the cement upwards from the center and gradually rolls and diffuses towards the periphery, thereby effectively preventing the cement in the processing tank 3 from settling and layering, ensuring the quality of the cement in use, a reticular filter frame 12 is fixedly installed on the inner side of the processing tank 3, when the reverse spiral conveying rod 7 conveys the cement upwards, the cement at the bottom of the reticular filter frame 12 is conveyed upwards partially and is output partially through the output pipe 5, therefore, the pressure at the top of the reticular filter frame 12 is always in a reduction trend, the pressure at the bottom is greater than that, thereby can make cement more quick by netted filter frame 12 filtration to can also partly loop filter, can get rid of the great debris in the cement effectively, avoid influencing the normal work of well cementation pump body 1.

As a preferred embodiment of the present invention, after the front baffle 16 is removed, the impurities in the net-shaped filter frame 12 can be cleaned, so that the filtering performance and efficiency of the net-shaped filter frame 12 are not excessively reduced, the blockage is prevented, and the operation is convenient and fast.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an oil field fracturing acidizing well cementing pump, includes well cementing pump body (1) and preprocessing device (2), its characterized in that, preprocessing device (2) are including handling jar (3) and motor casing (4), motor casing (4) fixed mounting is at the top of handling jar (3), the bottom fixedly connected with output tube (5) of handling jar (3), fixed mounting has motor (6) in motor casing (4), fixedly connected with reverse spiral conveying rod (7) on the output shaft of motor (6), reverse spiral conveying rod (7) are in on the central line of handling jar (3), fixed mounting has dead lever (8) on the inside wall of output tube (5) both sides, fixed mounting has spacing ring (9) between dead lever (8) on the inside wall of output tube (5) both sides, spacing ring (9) movable sleeve is established in the bottom of reverse spiral conveying rod (7), fixed mounting has a plurality of installation pole (10) on the inside wall of processing jar (3), and fixed mounting has solid fixed ring (11) between a plurality of installation pole (10), the bottom fixed mounting of solid fixed ring (11) has netted filter frame (12), the inside wall fixed connection of netted filter frame (12) and processing jar (3), the front side of processing jar (3) is inlayed through the bolt and is had preceding baffle (16).

2. The oilfield fracturing acidizing well cementation pump of claim 1, wherein: the inner side of the bottom of the treatment tank (3) is provided with a conveying arc (21).

3. The oilfield fracturing acidizing well cementation pump of claim 1, wherein: handle one side fixedly connected with slope at jar (3) top and add pipe (19), the slope adds the one end fixedly connected with of pipe (19) and violently adds pipe (13), violently add one end fixedly connected with connecting pipe (14) of pipe (13), the top fixedly connected with who violently adds pipe (13) directly adds pipe (20), feeder hopper (15) are installed at the top that directly adds pipe (20).

4. The oilfield fracturing acidizing well cementation pump of claim 1, wherein: the bottom fixed mounting of output tube (5) has flange (17), a plurality of screw (18) have been seted up to flange (17) edge.

5. The oilfield fracturing acidizing well cementation pump of claim 1, wherein: the number of the mounting rods (10) is 8.