CN214681268U

CN214681268U - Sand mixing skid for underground fracturing

Info

Publication number: CN214681268U
Application number: CN202121171352.5U
Authority: CN
Inventors: 台云龙; 寇胜彬; 王信涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-11-12
Anticipated expiration: 2031-05-28

Abstract

The utility model provides a fracturing in pit is with muddy sand sled, including the sled frame, sled frame top outer wall is provided with liquid respectively and adds the system, add system and blending tank futilely, liquid adds the system and adds the system futilely and be connected with the blending tank respectively, the blending tank inner wall is provided with rabbling mechanism, sled frame top outer wall is fixed with the auger shell through two sets of adjusting part respectively, auger shell inner wall is provided with the transmission subassembly, the adjusting part includes hydraulic stem one, two solid fixed rings and hydraulic stem two, two solid fixed rings set up respectively in auger shell outer wall both sides, hydraulic stem one and hydraulic stem two are rotated respectively and are connected in two solid fixed ring bottom outer walls. The utility model discloses a be provided with the auger shell, the auger shell is connected with the blending tank through the bellows, and auger shell outer wall is connected with the sled frame through hydraulic stem one and hydraulic stem two respectively, at the during operation, adjusts hydraulic stem one and hydraulic stem two respectively to this angle of adjusting the auger shell, the convenience is transported the material to the blending tank in.

Description

Sand mixing skid for underground fracturing

Technical Field

The utility model relates to a mulling sled technical field, in particular to mulling sled is used in fracturing in pit.

Background

In the prior art, a fracturing unit mainly comprises a fracturing truck, a sand mixer truck, an instrument truck, a manifold truck and auxiliary equipment; after the fracturing fluid, the propping agent and various additives are mixed by the sand mixing truck in the construction process, the mixture is provided to a plurality of fracturing trucks through a connecting manifold; pressurizing the mixed liquid by the fracturing truck, collecting the liquid by a high-pressure manifold, and injecting the liquid into the bottom of the well; the instrument vehicle monitors, analyzes and records the whole operation process.

In addition, as for the proppant adding mode, most of the traditional sand mixing equipment provides proppant to a mixing tank (discharge pump) of the sand mixing equipment through a spiral conveying device (or auger) at the tail part, the spiral conveying device has a complex structure and relatively high field reaction failure rate, and in addition, the size and the weight of the sand mixing equipment are increased to a great extent by the aid of the spiral conveying device which is obliquely arranged; the sand hopper of the spiral sand conveyer is two or an integral sand hopper, and the left and right oil separating and combining cylinders can drive the sand hopper to be separated during operation, so that two sand conveying vehicles can continuously add sand to the sand hopper.

In order to solve the problem of carrying out angle adjustment to spiral delivery mechanism, for this reason, provide a fracturing blender sled for in pit.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the present invention is intended to provide a sand mixing pry for downhole fracturing, so as to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial choice.

The embodiment of the utility model provides a technical scheme is so realized: including the sled frame, sled frame top outer wall is provided with liquid respectively and adds the system, add system and blending tank futilely, liquid adds the system and is connected with the blending tank futilely with adding the system respectively, the blending tank inner wall is provided with rabbling mechanism, sled frame top outer wall is fixed with the auger shell through two sets of adjusting part respectively, auger shell inner wall is provided with transmission assembly, adjusting part includes hydraulic stem one, two solid fixed rings and hydraulic stem two, two solid fixed rings set up respectively in auger shell outer wall both sides, hydraulic stem one and hydraulic stem two are rotated respectively and are connected in two solid fixed ring bottom outer walls, hydraulic stem one and hydraulic stem two rotate respectively with sled frame top outer wall and are connected, two auger shell one ends are provided with the bellows, the bellows other end is connected with the blending tank.

In some embodiments, each group of the transmission assemblies respectively comprises a sand hopper, a hydraulic motor and an auger shaft, the outer wall of the top of the auger shell is provided with a feeding hole, the sand hopper is arranged on the inner wall of the feeding hole, and the auger shaft is rotatably connected to the inner wall of one side of the auger shell.

In some embodiments, the hydraulic motor is arranged on the outer wall of one side of the packing auger shell, and an output shaft of the hydraulic motor is connected with the packing auger shaft through the sleeve roller chain.

In some embodiments, the auger shaft is provided with a metering gear, and the metering gear is connected with the instrument desk and the instrument vehicle through a sensor and a cable.

In some embodiments, the stirring mechanism comprises a stirring assembly and a feeding assembly, the stirring assembly comprises a motor, a stirring rod, more than two stirring blades I, more than two stirring blades II and more than two stirring blades III, and the stirring rod is rotatably connected to the central position of the inner wall at the bottom of the mixing tank.

In some embodiments, two or more of the first stirring blades and two or more of the second stirring blades are respectively disposed on the outer wall of the stirring rod, two or more of the third stirring blades are disposed at one end of the two or more of the first stirring blades, and the two or more of the second stirring blades and the two or more of the third stirring blades are both in an inclined state.

In some embodiments, the feeding assembly comprises a liquid supply pipe, a discharge pipe, more than two radial holes and an inner cavity, the inner cavity is arranged on the inner wall of the mixing tank, an outer cavity is formed between the inner cavity and the mixing tank, the liquid supply pipe is connected with the outer cavity, the more than two radial holes are formed in the inner wall of the bottom of the inner cavity, a semicircular groove is formed in the bottom of the mixing tank, and the discharge pipe is connected with the groove.

In some embodiments, the inner wall of the bottom of the groove is provided with a water outlet, and the inner wall of the water outlet is provided with a hydraulic butterfly valve.

The embodiment of the utility model provides a owing to adopt above technical scheme, it has following advantage:

1. through being provided with the auger shell, the auger shell is connected with the blending tank through the bellows, and auger shell outer wall has cup jointed two solid fixed rings, and two solid fixed rings are connected with the sled frame through hydraulic stem one and hydraulic stem two respectively, and at the during operation, adjust hydraulic stem one and hydraulic stem two respectively to this angle of adjusting the auger shell, conveniently transport the material in the blending tank.

2. Through being provided with transmission assembly, transmission assembly includes sand hopper, hydraulic motor and auger shaft respectively, and the auger shaft is driven by hydraulic motor, connects through sleeve roller chain, and left and right sides auger shaft can independent control, can be according to the size of defeated sand volume, both can use single section of thick bamboo work, also can use binocular work, is equipped with metering gear on the auger shaft, on will defeated sand signal transmission to instrument desk and instrument truck through sensor and cable, directly reads defeated sand volume through the digital display table.

3. Through being provided with the stirring subassembly, the stirring subassembly includes motor, puddler, two above stirring fan blades one, two above stirring fan blades two and two above stirring fan blades three, utilize the motor to drive the puddler and rotate, two stirring vane's about the puddler adopts the mode, reach the stirring effect of misce bene, the mixed liquid of stirring two pairs of bottoms of in-process stirring fan blade has an effect of up-turning, reach the effect that can not a large amount of sand setting and produce the swirl, the discharge capacity is steady, undulant reduction.

4. Through being provided with the feeding subassembly, the feeding subassembly includes feed pipe, discharge pipe, radial hole and inner chamber more than two, and outside liquid feed pump passes through the feed pipe and to the inner chamber liquid feeding, and liquid is earlier at the external cavity tangential flow, and after liquid is at the external cavity mesocycle, gets into the inner chamber through radial hole to with proppant intensive mixing, because the surface area of this inner chamber is great, the proppant will soak completely, thereby difficult gassing.

The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will be readily apparent by reference to the drawings and following detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments or technical descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a front view structural diagram of the present invention;

FIG. 2 is a structural view of the mixing tank of the present invention;

FIG. 3 is a diagram of the inner cavity structure of the present invention;

fig. 4 is a structural view of the stirring rod of the present invention.

Reference numerals:

in the figure: 1-prying a frame; 2-liquid addition system; 3-mixing tank; 4-dry addition system; 5-a corrugated pipe; 6-a first hydraulic rod; 7-auger shell; 8-fixing the ring; 9-a sand hopper; 10-a hydraulic motor; 11-auger shaft; 12-hydraulic rod two; 13-a supply tube; 14-a discharge pipe; 15-a motor; 16-a groove; 17-radial holes; 18-lumen; 19-a stirring rod; 20-stirring fan blade I; 21-stirring fan blades II; 22-stirring fan blade three.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example 1:

as shown in figures 1-4, the embodiment of the utility model provides a sand mixing skid for underground fracturing, in order to adjust the angle, comprising a skid frame 1, the outer wall of the top of the skid frame 1 is respectively provided with a liquid adding system 2, a dry adding system 4 and a mixing tank 3, the liquid adding system 2 and the dry adding system 4 are respectively connected with the mixing tank 3, the inner wall of the mixing tank 3 is provided with a stirring mechanism, the outer wall of the top of the skid frame 1 is respectively fixed with an auger shell 7 through two groups of adjusting components, the inner wall of the auger shell 7 is provided with a transmission component, the adjusting component comprises a hydraulic rod one 6, two fixing rings 8 and a hydraulic rod two 12, the two fixing rings 8 are respectively sleeved on two sides of the outer wall of the auger shell 7, the hydraulic rod one 6 and the hydraulic rod two 12 are respectively rotatably connected with the outer walls of the bottoms of the two fixing rings 8, the hydraulic rod one 6 and the hydraulic rod two 12 are respectively rotatably connected with the outer wall of the top of the skid frame 1, one end of the two auger shells 7 is clamped with a corrugated pipe 5, the other end of the corrugated pipe 5 is connected with the mixing tank 3; through being provided with auger shell 7, auger shell 7 is connected with blending tank 3 through

bellows

5, and 7 outer walls of auger shell have cup jointed two solid fixed rings 8, and two solid fixed rings 8 are connected with sled frame 1 through hydraulic stem one 6 and hydraulic stem two 12 respectively, and at the during operation, adjust hydraulic stem one 6 and hydraulic stem two 12 respectively to this angle of adjusting auger shell 7 conveniently transports the material in blending tank 3.

In one embodiment, each group of transmission assemblies respectively comprises a sand hopper 9, a hydraulic motor 10 and an auger shaft 11, a feeding hole is formed in the outer wall of the top of an auger shell 7, the sand hopper 9 is welded on the inner wall of the feeding hole, the auger shaft 11 is rotatably connected to the inner wall of one side of the auger shell 7, the hydraulic motor 10 is fixed on the outer wall of one side of the auger shell 7 through a bolt, the output shaft of the hydraulic motor 10 is connected with the auger shaft 11 through a sleeve roller chain, a measuring gear is arranged on the auger shaft 11, and the measuring gear is connected with an instrument desk and an instrument truck through a sensor and a cable; through being provided with transmission assembly, transmission assembly includes sand hopper 9, hydraulic motor 10 and auger shaft 11 respectively, auger shaft 11 is driven by hydraulic motor 10, connects through the sleeve roller chain, and left and right sides auger shaft 11 can independent control, can be according to the size of defeated sand volume, both can use single section of thick bamboo work, also can use binocular work, and auger shaft 11 is equipped with metering gear, on sensor and cable transmit the defeated sand signal to instrument desk and instrument truck, directly read defeated sand volume through the digital display table.

The utility model discloses at the during operation, adjust hydraulic stem one 6 and hydraulic stem two 12 respectively, adjust the angle of auger shell 7 with this, the convenience is transported the material to blending tank 3 in, auger shaft 11 is driven by hydraulic motor 10, connect through sleeve roller chain, but control auger shaft 11 independent control, can be according to the size of defeated sand volume, both can use single section of thick bamboo work, also can use binocular work, be equipped with the metering gear on auger shaft 11, will fail sand signal transmission to instrument desk and instrument truck on through sensor and cable, directly read defeated sand volume through the digital display table.

Example 2:

a sand mixing skid for underground fracturing is disclosed, as shown in figures 1, 3 and 4, in order to stir materials, the stirring mechanism comprises a stirring component and a feeding component, the stirring component comprises a motor 15, a stirring rod 19, more than two stirring blades 20, more than two stirring blades 21 and more than two stirring blades 22, the stirring rod 19 is rotatably connected to the central position of the inner wall of the bottom of a mixing tank 3, the more than two stirring blades 20 and the more than two stirring blades 21 are respectively fixed on the outer wall of the stirring rod 19 through bolts, the more than two stirring blades 22 are welded at one end of the more than two stirring blades 20, the more than two stirring blades 21 and the more than two stirring blades 22 are in inclined states, the feeding component comprises a liquid supply pipe 13, a discharge pipe 14, more than two radial holes 17 and an inner cavity 18, the inner cavity 18 is arranged on the inner wall of the mixing tank 3, an outer cavity is formed between the inner cavity 18 and the mixing tank 3, the liquid supply pipe 13 is connected with the outer cavity, more than two radial holes 17 are formed in the inner wall of the bottom of the inner cavity 18, a semicircular groove 16 is formed in the bottom of the mixing tank 3, the discharge pipe 14 is connected with the groove 16, a water discharge opening is formed in the inner wall of the bottom of the groove 16, and a hydraulic butterfly valve is arranged on the inner wall of the water discharge opening; by arranging the stirring assembly, the stirring assembly comprises a motor 15, a stirring rod 19, more than two stirring blades I20, more than two stirring blades II 21 and more than two stirring blades III 22, the motor 15 is utilized to drive the stirring rod 19 to rotate, the stirring rod 19 adopts a mode of upper and lower double stirring blades to achieve a stirring effect of uniform mixing, the stirring blades II 21 have an upward turning effect on mixed liquid at the bottom in the stirring process, the effects of no large amount of sand settling and no vortex generation are achieved, the discharge capacity is stable, and the fluctuation is reduced; through being provided with the feeding subassembly, the feeding subassembly includes feed pipe 13, discharge pipe 14, more than two radial hole 17 and inner chamber 18, and external feed pump passes through feed pipe 13 and adds the liquid to inner chamber 18 liquid, and liquid is earlier the tangential flow in the outer chamber, and after liquid circulates in the outer chamber, gets into inner chamber 18 through radial hole 17 to with proppant intensive mixing, because the surface area of this inner chamber 18 is great, the proppant will be soaked completely to be difficult for producing the bubble.

The utility model discloses at the during operation, utilize motor 15 to drive puddler 19 and rotate, puddler 19 adopts the mode of two stirring vane about adopting, reaches the stirring effect of misce bene, and stirring vane two 21 has an effect of turning over up to the mixed liquid of bottom in the stirring process, reaches the effect that can not a large amount of sand setting and produce the swirl, and the discharge displacement is steady, and the fluctuation is reduced; an external liquid supply pump adds liquid to the inner cavity 18 through the liquid supply pipe 13, the liquid flows tangentially in the outer cavity, and after the liquid circulates in the outer cavity, the liquid enters the inner cavity 18 through the radial holes 17 and is fully mixed with the propping agent, and the propping agent is completely soaked due to the large surface area of the inner cavity 18, so that bubbles are not easy to generate.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various changes or substitutions within the technical scope of the present invention, which should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a fracturing in pit is with mulling sled, includes sled frame (1), its characterized in that: the outer wall of the top of the prying frame (1) is respectively provided with a liquid adding system (2), a dry adding system (4) and a mixing tank (3), the liquid adding system (2) and the dry adding system (4) are respectively connected with the mixing tank (3), the inner wall of the mixing tank (3) is provided with a stirring mechanism, the outer wall of the top of the prying frame (1) is respectively fixed with an auger shell (7) through two groups of adjusting components, the inner wall of the auger shell (7) is provided with a transmission component, the adjusting components comprise a first hydraulic rod (6), two fixing rings (8) and a second hydraulic rod (12), the two fixing rings (8) are respectively arranged on two sides of the outer wall of the auger shell (7), the first hydraulic rod (6) and the second hydraulic rod (12) are respectively and rotatably connected with the outer wall of the bottom of the two fixing rings (8), the first hydraulic rod (6) and the second hydraulic rod (12) are respectively and rotatably connected with the outer wall of the top of the prying frame (1), one end of the two auger shells (7) is provided with a corrugated pipe (5), the other end of the corrugated pipe (5) is connected with the mixing tank (3).

2. The sand mullion for fracturing in a well as defined in claim 1, wherein: every group transmission assembly includes sand fill (9), hydraulic motor (10) and auger shaft (11) respectively, and the feed inlet has been seted up to auger shell (7) top outer wall, and sand fill (9) set up in the feed inlet inner wall, and auger shaft (11) rotate to be connected in auger shell (7) one side inner wall.

3. The sand mullion for downhole fracturing of claim 2, wherein: the hydraulic motor (10) is arranged on the outer wall of one side of the packing auger shell (7), and an output shaft of the hydraulic motor (10) is connected with the packing auger shaft (11) through the sleeve roller chain.

4. The sand mullion for downhole fracturing of claim 2, wherein: and a metering gear is arranged on the auger shaft (11), and the metering gear is connected with an instrument desk and an instrument vehicle through a sensor and a cable.

5. The sand mullion for fracturing in a well as defined in claim 1, wherein: rabbling mechanism includes stirring subassembly and feeding subassembly, and the stirring subassembly includes motor (15), puddler (19), more than two stirring fan blade one (20), more than two stirring fan blade two (21) and more than two stirring fan blade three (22), and puddler (19) rotate to be connected in blending tank (3) bottom inner wall central point and put.

6. The mullion for fracturing in a well as defined in claim 5, wherein: more than two stirring fan blade (20) and two or more stirring fan blade two (21) set up respectively in puddler (19) outer wall, and two or more stirring fan blade three (22) set up in two or more stirring fan blade one (20) one end, and two or more stirring fan blade two (21) and two or more stirring fan blade three (22) are the tilt state.

7. The mullion for fracturing in a well as defined in claim 5, wherein: the feeding assembly comprises a liquid supply pipe (13), a discharge pipe (14), more than two radial holes (17) and an inner cavity (18), the inner cavity (18) is arranged on the inner wall of the mixing tank (3), an outer cavity is formed between the inner cavity (18) and the mixing tank (3), the liquid supply pipe (13) is connected with the outer cavity, the more than two radial holes (17) are arranged on the inner wall of the bottom of the inner cavity (18), a semicircular groove (16) is formed in the bottom of the mixing tank (3), and the discharge pipe (14) is connected with the groove (16).

8. The sand mullion for fracturing in a well as defined in claim 7, wherein: a water outlet is arranged on the inner wall of the bottom of the groove (16), and a hydraulic butterfly valve is arranged on the inner wall of the water outlet.