CN215506387U - Drilling fluid plugging agent apparatus for producing - Google Patents
Drilling fluid plugging agent apparatus for producing Download PDFInfo
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- CN215506387U CN215506387U CN202121307398.5U CN202121307398U CN215506387U CN 215506387 U CN215506387 U CN 215506387U CN 202121307398 U CN202121307398 U CN 202121307398U CN 215506387 U CN215506387 U CN 215506387U
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- mixing tank
- gas
- tank
- circulating fan
- drilling fluid
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- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The utility model discloses a production device of a drilling fluid plugging agent, which comprises a mixing tank and a circulating fan, wherein the circulating fan is used for guiding gas phase at the top of the mixing tank into solution at the lower part to realize gas circulation; the mixing tank is provided with a thermometer and a Ph meter and used for measuring the temperature and the Ph value of the solution in the mixing tank, the mixing tank is provided with a heating structure and used for adjusting the temperature of the solution in the mixing tank, and the mixing tank is also provided with an inert gas supply pipe and an inert gas exhaust pipe which are used for replacing the inert gas in the mixing tank, exhausting oxygen in time and maintaining the pressure in the tank. The device is provided with the central cylinder in the mixing tank, and the circulating fan is arranged to introduce gas at the top of the mixing tank into the central cylinder, so that gas circulation is realized on one hand, and liquid circulation is realized by utilizing density difference generated by the gas inside and outside the central cylinder on the other hand. The gas-liquid circulation realizes the sufficient mixing contact of gas and liquid, is favorable for accelerating the deoxidation, realizes the stirring by utilizing the gas-liquid contact mixing, fully stirs and saves a stirrer.
Description
Technical Field
The utility model relates to the technical field of chemical agent production equipment, and belongs to a production device of a drilling fluid plugging agent.
Background
The downhole leakage refers to the phenomenon that working fluid in a shaft enters a stratum fracture of an underground high-permeability zone in the process of oil-gas well operation. This is a difficult point in oil and gas exploitation, and usually a drilling fluid plugging agent needs to be injected into the stratum to plug the underground fracture, so as to reduce the loss. The production process of the drilling fluid plugging agent mainly comprises the processes of preparing monomer solution, adjusting the pH value of the solution, introducing inert gas into the solution for deoxidation, adding reaction monomer, heating and reacting and the like. Batch reactions are usually carried out using a reaction vessel containing a stirrer. For example, CN202020107059.1 discloses a production device for a plugging agent for drilling fluid, the main body of which is a mixing tank with stirring equipment. In the present apparatus, the core component is a stirring apparatus, and it is required to ensure sufficient stirring and mixing, and further, oxygen causes side reactions, so that the solution is required to be sufficiently deoxygenated. These two points can be achieved with a sufficient time, but long-term operation is not economically practical, and therefore, it is necessary to improve the efficiency of oxygen removal and stirring. .
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides a production device of a drilling fluid plugging agent, which utilizes circulating gas for stirring, omits a stirrer, and utilizes the density difference between the inside and the outside of a central cylinder to realize solution circulation and realize full mixing and stirring. The specific scheme of the utility model is as follows:
a production device of a drilling fluid plugging agent comprises a mixing tank and a circulating fan, wherein the circulating fan is used for guiding a gas phase at the top of the mixing tank into a solution at the lower part to realize gas circulation; the mixing tank is provided with a thermometer and a Ph meter and used for measuring the temperature and the Ph value of the solution in the mixing tank, the mixing tank is provided with a heating structure and used for adjusting the temperature of the solution in the mixing tank, the mixing tank is also provided with an inert gas supply pipe and an inert gas exhaust pipe and used for replacing the inert gas in the mixing tank, timely exhausting oxygen and maintaining the pressure in the tank, and the mixing tank is characterized in that a central cylinder is also vertically arranged in the mixing tank, the central cylinder is of a tubular structure, the outer diameter of the central cylinder is smaller than the inner diameter of the mixing tank, a circulation channel is arranged between the two ends of the central cylinder and the mixing tank, and an outlet of a circulating fan is provided with a gas distributor which is positioned in the central cylinder.
When the gas-liquid contact deoxidation equipment works, the gas density is smaller than that of the liquid, so that the density difference between the inside and the outside of the central cylinder is caused after the gas enters the central cylinder, the fluid on the outer side of the central cylinder flows into the central cylinder from the lower part of the central cylinder under the driving of the density difference, so that liquid circulation is formed, the cross section area of the central cylinder is smaller than that of the mixing tank, and the gas-liquid contact deoxidation equipment is beneficial to improving the gas flow rate, increasing the turbulence degree of gas-liquid flow and strengthening gas-liquid contact deoxidation.
In one embodiment of the present invention, the mixing tank is used for gas circulation, so a positive pressure must be maintained in the pipe, however, in the batch production, the inside of the mixing tank must be communicated with the outside to cause gas solution leakage, so a pressurized feeding system is necessary to realize pressurized feeding. The pressurized feeding system comprises a buffer tank, wherein the upper end of the buffer tank is communicated with a feeding hopper through a pipeline with a valve, and the lower end of the buffer tank is communicated with a mixing tank through a pipeline with a valve.
In an embodiment of the present invention, the inert gas supply pipe is located at an outlet of the circulation fan, and the inert gas exhaust pipe is located at an inlet of the circulation fan.
As an embodiment of the utility model, the air outlet of the mixing tank is provided with a demister, so that entrainment of mist is reduced, and damage to the circulating fan is avoided.
As an embodiment of the utility model, the heating structure is a heating jacket, the heating medium can be hot water or steam as required, and the heating jacket is provided with a feeding pipe and a discharging pipe for feeding and discharging the heating medium into and out of the heating jacket.
Compared with the prior art, the method has the following advantages:
the device is provided with the central cylinder in the mixing tank, and the circulating fan is arranged to introduce gas at the top of the mixing tank into the central cylinder, so that gas circulation is realized on one hand, and liquid circulation is realized by utilizing density difference generated by the gas inside and outside the central cylinder on the other hand. The gas-liquid circulation realizes the sufficient mixing contact of gas and liquid, is favorable for accelerating the deoxidation, realizes the stirring by utilizing the gas-liquid contact mixing, fully stirs and saves a stirrer.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited to these examples.
In the description of the present invention, it is to be noted that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and should not be construed as limiting the present invention.
Example (b):
referring to fig. 1, a production device for a drilling fluid plugging agent comprises a mixing tank 1 and a circulating fan 2; the mixing tank 1 is provided with a thermometer and a Ph meter and is used for measuring the temperature and the Ph value of the solution in the mixing tank; the mixing tank 1 is provided with a heating structure 11 for adjusting the temperature of the solution in the mixing tank, the heating structure 11 is a heating jacket, a heating medium can select hot water and steam according to needs, and the heating jacket is provided with a feeding pipe and a discharging pipe for the heating medium to enter and exit the heating jacket; a central cylinder 3 is also vertically arranged in the mixing tank 1, the central cylinder 3 is of a tubular structure, the outer diameter of the central cylinder 3 is smaller than the inner diameter of the mixing tank 1, and a circulation channel is arranged between the two ends of the central cylinder 3 and the mixing tank; the circulating fan 2 is used for circularly guiding the gas phase at the top of the mixing tank 1 into the solution in the central cylinder 3, and a gas distributor 4 is arranged at a gas outlet in order to uniformly distribute gas in the solution; an inert gas air supply pipe 5 is arranged at the outlet of the circulating fan 2, an inert gas exhaust pipe 6 is arranged at the inlet of the circulating fan 2, a pressure gauge, an oxygen content analyzer and a safety valve are further arranged on the pipeline at the inlet of the circulating fan 2, the pressure in the mixing tank is kept constant through supplying and discharging inert gas, excessive accumulation of oxygen in the mixing tank is avoided, and the safety valve is used for preventing overpressure. In addition, the gas outlet of the mixing tank 1 is provided with a demister 7 for reducing entrainment and avoiding damage to the circulating fan.
The device is also provided with a pressurized charging system so as to realize pressurized charging. The pressurized charging 8 system comprises a buffer tank 81, wherein the upper end of the buffer tank 81 is communicated with a charging hopper 82 through a pipeline with a valve, and the lower end of the buffer tank 81 is communicated with a mixing tank 1 through a pipeline with a valve.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the embodiments of the present invention are included in 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 (5)
1. A production device of a drilling fluid plugging agent comprises a mixing tank and a circulating fan, wherein the circulating fan is used for guiding a gas phase at the top of the mixing tank into a solution at the lower part to realize gas circulation; the mixing tank is provided with a thermometer and a Ph meter for measuring the temperature and the Ph value of the solution in the mixing tank, the mixing tank is provided with a heating structure for adjusting the temperature of the solution in the mixing tank, the mixing tank is also provided with an inert gas supply pipe and an inert gas exhaust pipe, and the mixing tank is characterized in that,
still vertically set up a center section of thick bamboo in the blending tank, a center section of thick bamboo is tubular structure and its external diameter is less than the internal diameter of blending tank, exists circulation channel between the both ends of a center section of thick bamboo and the blending tank, and circulating fan's export is provided with the gas distributor, and the gas distributor is arranged in a center section of thick bamboo.
2. The production device of the drilling fluid plugging agent as claimed in claim 1, wherein the production device further comprises a pressurized feeding system, the pressurized feeding system comprises a buffer tank, the upper end of the buffer tank is communicated with the feeding hopper through a pipeline with a valve, and the lower end of the buffer tank is communicated with the mixing tank through a pipeline with a valve.
3. The production device of the drilling fluid plugging agent as claimed in claim 1, wherein the inert gas supply pipe is positioned at the outlet of the circulating fan, and the inert gas exhaust pipe is positioned at the inlet of the circulating fan.
4. The production device of the drilling fluid plugging agent as claimed in claim 1, wherein a demister is arranged at an air outlet of the mixing tank.
5. The production device of the drilling fluid plugging agent as claimed in claim 1, wherein the heating structure is a heating jacket, and the heating jacket is provided with a feeding pipe and a discharging pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121307398.5U CN215506387U (en) | 2021-06-11 | 2021-06-11 | Drilling fluid plugging agent apparatus for producing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121307398.5U CN215506387U (en) | 2021-06-11 | 2021-06-11 | Drilling fluid plugging agent apparatus for producing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215506387U true CN215506387U (en) | 2022-01-14 |
Family
ID=79807828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121307398.5U Active CN215506387U (en) | 2021-06-11 | 2021-06-11 | Drilling fluid plugging agent apparatus for producing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215506387U (en) |
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2021
- 2021-06-11 CN CN202121307398.5U patent/CN215506387U/en active Active
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