Fine treatment equipment for high-temperature-resistant cement for well cementation of deep-ground ultra-deep well

Abstract

The utility model discloses fine treatment equipment for high-temperature-resistant cement for well cementation of deep and ultra-deep wells, which comprises a base, a box arranged on the base, a barrel arranged on the box, a feed pipe arranged on the side wall of the barrel, a discharge port arranged at the top of the box and connected with the discharge pipe, a distribution plate arranged at the inner bottom of the barrel, and a first motor arranged in the box. An output shaft of the first motor penetrates through a top plate of the box body and is coaxially and fixedly connected with the bottom of a material distribution disc, a filter plate is arranged above the material distribution disc, a horizontal rotating shaft is arranged at the bottom of the filter plate, two grinding rollers are symmetrically arranged at the two ends of the rotating shaft, and each grinding roller is rotationally connected with the rotating shaft; the upper end of the rotating shaft is connected with the rotating shaft, the lower end is coaxially and fixedly connected with an output shaft of the first motor, and the periphery of the filter plate is connected with the side wall of the barrel through a plurality of supports. According to the cement fine grinding and screening device, cement is finely ground and screened, and the yield and quality of the cement are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cement processing equipment for well cementation, and particularly relates to a fine processing equipment for high-temperature-resistant cement for deep and ultra-deep well cementation. BACKGROUND

[0002] Deep and ultra-deep wells generally refer to wells with a depth exceeding the commonly defined depth of deep wells, typically referring to wells with a depth exceeding 6000 meters to 9000 meters. The main goal of such drilling projects is to explore and develop deep oil and gas resources. With the advancement of technology, the world's deepest drilling record has been constantly broken in recent years. For example, the Shunbei 10 Inclined Well in China has a depth of 8591 meters, which is a remarkable achievement in ultra-deep well drilling in recent years. The challenges faced by ultra-deep well drilling include high temperature, high pressure, complex formation conditions, and technical difficulties. The drilling and development of these wells require advanced technology and equipment support, including high-strength drilling equipment, special drilling fluid, and accurate formation pressure monitoring. In terms of geological research, ultra-deep wells not only help scientists understand the internal structure and geological history of the Earth, but also discover new oil and gas resources, thereby supporting energy supply and promoting economic development. In addition, ultra-deep well cementation, as a key link in the well completion process of geothermal wells, refers to the process of injecting cementing materials between the buried pipe and the drill hole wall of geothermal wells. The cementing materials play the role of heat exchanger between the geothermal well and the rock-soil, and also prevent the pollution of the aquifer caused by geothermal wells.

[0003] Currently, high-temperature-resistant cement for deep and ultra-deep well cementation is generally processed by fine powder selection devices. The cement is blown into the powder selection barrel by a fan, and the powdered cement is blown away and separated from the particles. In actual use, the cement blown away by the fan scatters in all directions inside the powder selection barrel, with random direction and a high likelihood of backflow and mixing with the particle material. This makes the fine powder selection of the cement incomplete, and the utilization rate of the particle cement is low. SUMMARY

[0004] The utility model provides a kind of fine processing equipment of high-temperature-resistant cement for deep and ultra-deep well cementation, solve the problem that traditional cement powder selection equipment is not easy to separate fine powder and particle, fine powder selection of cement is not thorough, and the utilization rate of particulate matter is low.

[0005] The utility model provides a kind of fine processing equipment of high-temperature resistant cement for deep ultra-deep well cementing, including base, box is arranged on the base, cylinder is arranged on the box, feeding pipe is arranged on the cylinder lateral wall, discharge port is arranged on the top of the box and is connected with discharge pipe, distribution disc is arranged in the bottom of the cylinder, first motor is arranged in the box, the output shaft of the first motor penetrates the box top plate and is coaxially fixedly connected with the distribution disc bottom, filter plate is arranged above the distribution disc, horizontal rotating shaft is arranged in the bottom of the filter plate, two rolling mills are symmetrically arranged in the both ends of the rotating shaft, each rolling mill is rotatably connected with the rotating shaft, rotating shaft is arranged in the middle of the rotating shaft, the upper end of the rotating shaft is fixedly connected with the rotating shaft, and the lower end is coaxially fixedly connected with the output shaft of the first motor, the periphery of the filter plate is connected with the cylinder lateral wall by a plurality of supports.

[0006] Further, a spiral shaft is arranged in the feeding pipe, spiral vanes are arranged on the spiral shaft, the spiral shaft is rotatably connected with the outer end cover of the feeding pipe, a second motor is arranged on the end cover for driving the spiral shaft to rotate, a feeding hopper is arranged on the top of the outer end of the feeding pipe, and the feeding hopper is connected and communicated with the feeding port arranged on the side wall of the feeding pipe.

[0007] Further, a cyclone plate is arranged above the distribution disc.

[0008] Further, a plurality of distribution plates are arranged on the distribution disc in circumferential direction.

[0009] Further, a plurality of air injection pipes are arranged around the distribution disc in circumferential direction, the lower end of each air injection pipe extends downward into the box and is connected with a shunt air pipe, the shunt air pipe is connected with a gas supply pipe for gas supply.

[0010] Further, each support includes a guide block, a guide rod and a compression spring, the guide block is arranged above the filter plate and is fixedly connected with the inner lateral wall of the cylinder, a vertical guide hole is arranged on the guide block, the lower end of the guide rod is fixedly connected with the filter plate, the upper end of the guide rod extends upward through the guide hole and extends above the guide block, a compression spring is sleeved on the guide rod between the guide block and the filter plate, the upper end of the compression spring is elastically fixedly connected with the guide block, and the lower end is elastically fixedly connected with the filter plate.

[0011] From the above technical solution, the utility model provides a kind of fine processing equipment of high-temperature resistant cement for deep ultra-deep well cementing.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The utility model discloses a first motor drive rotates the distribution disc to the cement scattered to all around through the feeding pipe and adds the cement to the cylinder, and the air is sent through the air inlet from the bottom of the cylinder, and the air in the cylinder forms the flow from below to above, drives the fine powder and the particulate matter to rise, intercepts the granular cement through the filter plate in the rising process, and the fine powder directly passes through the filter plate and rises and discharges from the discharge pipe, and the two roller mills on the rotating shaft are driven to rotate through the first motor, and the granular cement that the roller mill rolls on the filter plate bottom surface is intercepted, and the granular cement is crushed and passes through the filter plate to become the qualified product and is reused, and the powder selecting efficiency is increased, and the utilization of the granular cement is increased. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the utility model, the following will be to the embodiment needed to use the drawing briefly introduces, obviously, for the ordinary skilled person in the art, without the premise of the creative labor, can also obtain other drawings according to these drawings.

[0015] Figure 1 The whole structure schematic diagram of the fine processing equipment for high-temperature-resistant cement for deep and ultra-deep well cementing is provided for the utility model.

[0016] Figure 2 The internal structure schematic diagram of the fine processing equipment for high-temperature-resistant cement for deep and ultra-deep well cementing is provided for the utility model.

[0017] Figure 3 The whole structure sectional view schematic diagram of the fine processing equipment for high-temperature-resistant cement for deep and ultra-deep well cementing is provided for the utility model.

[0018] Figure 4 The partial structure schematic diagram of the fine processing equipment for high-temperature-resistant cement for deep and ultra-deep well cementing is provided for the utility model.

[0019] Figure 5 The I position local enlarged structure schematic diagram of the fine processing equipment for high-temperature-resistant cement for deep and ultra-deep well cementing is provided for the utility model. Figure 3

[0020] Figure 6 The roller mill structure schematic diagram of the fine processing equipment for high-temperature-resistant cement for deep and ultra-deep well cementing is provided for the utility model.

[0021] In the drawing:

[0022] 1-base;

[0023] 2-box;20-discharge pipe;

[0024] 3-cylinder;

[0025] ​4 - feeding pipe; 40 - end cover; 41 - screw shaft; 42 - screw blade; 43 - second motor; 44 - feeding hopper;

[0026] 5 - distribution disc; 51 - distribution plate; 52 - air injection pipe; 53 - distribution air pipe; 54 - air supply pipe;

[0027] 6 - first motor;

[0028] 7 - cyclone plate;

[0029] 8 - filter plate; 81 - rotating shaft; 82 - roller; 83 - rotating shaft; 84 - support; 821 - boss; 841 - guide block; 842 - guide rod; 843 - compression spring. DETAILED DESCRIPTION

[0030] In order to make the personnel in the art better understand the technical scheme in the utility model, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings.

[0031] Example 1:

[0032] Referring to Figures 1-6The application discloses a fine processing equipment for high-temperature-resistant cement for deep and ultra-deep well cementing, which comprises a base 1, a box body 2 arranged on the base 1, a vertical cylinder body 3 arranged on the box body 2, a top plate of the box body 2 and a lower end of the cylinder body 3 being sealingly and fixedly connected, the upper end of the cylinder body 3 being closed and sealed by a sealing plate, a horizontal feeding pipe 4 being arranged on the side wall of the cylinder body 3, one end of the feeding pipe 4 being suspended in the cylinder body 3 and the other end being suspended outside the cylinder body 3, the side wall of the feeding pipe 4 being fixedly connected with the side wall of the cylinder body 3 by welding, a discharging port being arranged on the top of the box body 2 and being connected with a discharging pipe 20, a horizontal distribution disc 5 being arranged on the inner bottom of the cylinder body 3, a vertical first motor 6 being arranged in the box body 2, the shell of the first motor 6 being fixedly connected with the side wall of the box body 2, the output shaft of the first motor 6 extending into the cylinder body 3 through the top plate of the box body 2 and being fixedly connected with the bottom of the distribution disc 5 coaxially, a filter plate 8 being arranged above the distribution disc 5, a horizontal rotating shaft 81 being arranged on the bottom of the filter plate 8, two rolling mills 82 being symmetrically arranged at the two ends of the rotating shaft 81, the rolling mill 82 being in a cylindrical shape, a plurality of axially distributed bosses 821 being arranged on the cylindrical surface of the rolling mill 82 in a circumferential direction, bearings being arranged in the axial through holes of the rolling mill 82, the rotating shaft 81 being rotatably connected with the bearings in the axial through holes of the rolling mill 82, the bearings being dustproof bearings, a vertical rotating shaft 83 being perpendicularly arranged on the middle part of the rotating shaft 81, the upper end of the rotating shaft 83 being fixedly connected with the rotating shaft 81 and the lower end being fixedly connected with the output shaft of the first motor 6 coaxially, the surface of the filter plate 8 being covered with filter screen holes, the filter plate 8 being connected with the side wall of the cylinder body 3 through a plurality of supports 84, the cement is added into the cylinder body 3 through the feeding pipe 4, the distribution disc 5 is driven to rotate by the first motor 6, the cement is scattered to the four directions, air is sent from the air inlet at the bottom of the cylinder body 3, the air in the cylinder body 3 flows from the bottom to the top, the fine powder and the particulate matter are driven to rise, the particulate cement is intercepted by the filter plate 8 in the rising process, the fine powder directly rises through the filter plate 8 and is discharged from the discharging pipe 20, the two rolling mills 82 on the rotating shaft 81 are driven to roll and rotate by the first motor 6, the particulate cement intercepted on the bottom surface of the filter plate 8 is crushed, the particulate cement passes through the filter plate 8 to become qualified products and is reused, the powder selecting efficiency is increased, the utilization rate of the particulate cement is increased, and the fine processing equipment for high-temperature-resistant cement for deep and ultra-deep well cementing is provided.

[0033] In the embodiment, referring to Figure 2 , four distribution plates 51 are arranged on the distribution disc 5 in a circumferential direction, each distribution plate 51 is perpendicularly connected with the distribution disc 5, the cement falling on the distribution disc 5 is scattered to the four directions by the distribution plates 51 in the rotating process of the distribution disc 5, and the cement is prevented from accumulating in the cylinder body 3.

[0034] In the embodiment, referring to Figure 2 , 3The plurality of vertical air injection pipes 52 are arranged around the circumference of the distribution disc 5 in the circumferential direction, and the lower end of each air injection pipe 52 extends downward into the box body 2 and is connected with a distribution air pipe 53, the distribution air pipe 53 is connected with a gas supply pipe 54 for air supply, the gas supply pipe 54 is connected with an air pump for air supply, and the air flow is upwardly injected through the plurality of air injection pipes 52, so that the cement around the distribution disc 5 is moved upward in the direction of the air flow for screening.

[0035] In the embodiment, referring to Figure 3 、 5 Each support 84 comprises a guide block 841, a guide rod 842 and a compression spring 843, the guide block 841 is arranged above the filter plate 8 and is fixedly connected with the inner wall of the cylinder body 3, a vertical guide hole is arranged on the guide block 841, the lower end of the guide rod 842 is fixedly connected with the filter plate 8, the upper end of the guide rod 842 extends upward through the guide hole and extends above the guide block 841, the compression spring 843 is sleeved on the guide rod 842 between the guide block 841 and the filter plate 8, the upper end of the compression spring 843 is elastically fixedly connected with the guide block 841, and the lower end of the compression spring 843 is elastically fixedly connected with the filter plate 8, the filter plate 8 is elastically supported by the support 84, and the filter plate 8 is prevented from being excessively worn by the roller 82.

[0036] In the embodiment, referring to Figure 3 A spiral shaft 41 is arranged in the feeding pipe 4, a spiral blade 42 is arranged on the spiral shaft 41, the spiral shaft 41 is rotationally connected with bearings in a bearing seat arranged on the outer end cover 40 of the feeding pipe 4, the outer end surface of the end cover 40 is fixedly provided with a second motor 43 for driving the spiral shaft 41 to rotate, and a feeding hopper 44 is arranged on the top of the outer end of the feeding pipe 4, the feeding hopper 44 is connected and communicated with a feeding port arranged on the side wall of the feeding pipe 4, the spiral blade 42 on the spiral shaft 41 is driven by the second motor 43 to uniformly add cement from the outside into the cylinder body 3, and the uniformity of the distribution of the distribution disc 5 is improved.

[0037] In the embodiment, referring to Figure 2 、 4 A cyclone plate 7 is arranged above the distribution disc 5, the cyclone plate 7 is a commercially available product, the flow direction of the cement powder is changed by the inclined plate of the cyclone plate 7, the cement powder is upwardly lifted in the form of vortex, the flow speed of the cement powder is reduced, the filter holes on the filter plate 8 are prevented from being blocked due to too high flow speed, the powder and the granular material are fully mixed and uniformly distributed on the bottom of the distribution disc 5, and the screening efficiency is improved.

[0038] In the embodiment, a maintenance opening should also be arranged on the side wall of the box body 2 and the cylinder body 3, and a maintenance door is arranged on the maintenance opening, so that the parts in the box body 2 and the cylinder body 3 are conveniently maintained and repaired.

[0039] From the above technical scheme can know, use, connect the hopper 44 and the discharge port of bucket elevator sealingly, then through the DCS controller button control second motor 43 start drive screw shaft 41 rotation, drive screw blade 42 with cement spiral feeding hopper 44 join in the cylinder 3 in the middle position, at the same time, through the first motor 6 drive distribution disc 5 rotation, the cement is scattered to all around, through the air inlet from the bottom of the cylinder 3 to the cylinder 3 inside, make the cylinder 3 inside form from the air flowing upwards, drive fine powder and particulate matter to rise, in the process of rising through filter plate 8 intercepts the granular cement, fine powder directly through filter plate 8 and rises and from the discharge pipe 20 discharge, at the same time, through the first motor 6 drive rotating shaft 83 drive two roller 82 on the rotating shaft 81 roll granular cement intercepted on the bottom surface of filter plate 8, make granular cement crushing after passing through filter plate 8 become qualified products are reused.

[0040] Those skilled in the art, after considering the specification and practicing the utility model disclosed herein, will readily come up with other embodiments of the utility model. The utility model is intended to cover any variations, uses, or adaptations of the utility model that follow, in general, the principles of the utility model and include those known or customary practices in the art of the utility model not disclosed in the utility model. The specification and examples are to be regarded as illustrative only, and the true scope of the utility model is indicated by the claims.

[0041] It should be understood that the utility model is not limited to the precise structures described above and illustrated in the drawings and that various modifications and changes can be made without departing from the scope thereof. The embodiments of the utility model described above are not meant to limit the scope of the utility model.

Claims

1. A fine processing apparatus for high-temperature-resistant cement for deep ultra-deep well cementing, characterized by: The utility model provides a kind of automatic feeding and discharging device, including base (1), which is provided with box (2) on the base (1), which is provided with cylinder (3) on the box (2), which is provided with feeding pipe (4) on the side wall of the cylinder (3), and the top of the box (2) is provided with discharge port and is connected with discharge pipe (20), the inner bottom of the cylinder (3) is provided with distribution disc (5), the first motor (6) is arranged in the box (2), the output shaft of the first motor (6) penetrates the top plate of the box (2) and is fixedly connected with the bottom of the distribution disc (5) coaxially, the filter plate (8) is arranged above the distribution disc (5), the horizontal rotating shaft (81) is arranged on the bottom of the filter plate (8), two mill rolls (82) are symmetrically arranged on the both ends of the rotating shaft (81), each mill roll (82) is rotatably connected with the rotating shaft (81), the rotating shaft (81) is provided with rotating shaft (83) on the middle part, the upper end of the rotating shaft (83) is fixedly connected with the rotating shaft (81), and the lower end is fixedly connected with the output shaft of the first motor (6) coaxially, and the filter plate (8) is connected with the side wall of the cylinder (3) through a plurality of supports (84) around.

2. The fine processing apparatus for high-temperature-resistant cement for deep and ultra-deep well cementing according to claim 1, characterized by The feeding pipe (4) is provided with a spiral shaft (41), and the spiral shaft (41) is provided with a spiral blade (42). The spiral shaft (41) is rotatably connected with the outer end cover (40) of the feeding pipe (4). The end cover (40) is provided with a second motor (43) for driving the spiral shaft (41) to rotate. The outer end top of the feeding pipe (4) is provided with a feeding hopper (44) connected with the feeding port provided on the side wall of the feeding pipe (4).

3. The fine processing apparatus for high-temperature-resistant cement for deep and ultra-deep well cementing according to claim 1, characterized by The distribution disc (5) is provided with a cyclone plate (7) above.

4. The fine processing apparatus for high-temperature-resistant cement for deep and ultra-deep well cementing according to claim 3, characterized by A plurality of distribution plates (51) are arranged on the distribution disc (5) in the circumferential direction.

5. The fine processing apparatus for high-temperature-resistant cement for deep and ultra-deep well cementing according to claim 4, characterized by A plurality of air injection pipes (52) are arranged around the distribution disc (5) in the circumferential direction. The lower end of each air injection pipe (52) extends downward into the box (2) and is connected with a shunt air pipe (53). The shunt air pipe (53) is connected with a gas supply pipe (54) for gas supply.

6. The fine processing apparatus for high-temperature-resistant cement for deep and ultra-deep well cementing according to claim 1, characterized by Each support (84) includes a guide block (841), a guide rod (842), and a compression spring (843). The guide block (841) is arranged above the filter plate (8) and is fixedly connected with the inner side wall of the cylinder (3). A vertical guide hole is provided on the guide block (841). The lower end of the guide rod (842) is fixedly connected with the filter plate (8). The upper end of the guide rod (842) extends upward through the guide hole and extends above the guide block (841). The compression spring (843) is sleeved on the guide rod (842) between the guide block (841) and the filter plate (8). The upper end of the compression spring (843) is elastically fixedly connected with the guide block (841), and the lower end is elastically fixedly connected with the filter plate (8).

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