CN210105838U - Sand setting and dewatering separator - Google Patents
Sand setting and dewatering separator Download PDFInfo
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- CN210105838U CN210105838U CN201920977343.1U CN201920977343U CN210105838U CN 210105838 U CN210105838 U CN 210105838U CN 201920977343 U CN201920977343 U CN 201920977343U CN 210105838 U CN210105838 U CN 210105838U
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Abstract
The utility model provides a sand setting and liquid removing separator, which relates to the field of natural gas recovery equipment and solves the technical problems of natural gas resource waste caused by lower sand removing capability of sand removing and liquid removing equipment; the device includes: the tank body is provided with an air inlet/liquid outlet at one end, and the air inlet/liquid outlet is connected with an air inlet/liquid pipeline; the top of the tank body is provided with a natural gas outlet, and the bottom of the tank body is provided with a sand discharge port and a liquid discharge port; an anti-impact device fixed inside the tank body, which can change the air intake/liquid direction and reduce the natural gas flow rate; the utility model can change the direction of the natural gas and the sand and liquid carried by the natural gas, greatly reduce the flow speed of the natural gas, effectively improve the efficiency of sand setting and liquid removal, and prevent direct damage of fracturing sand and liquid to the tank body; improves and perfects the functions of sand removal, liquid removal and purification of the process device.
Description
Technical Field
The utility model belongs to the technical field of natural gas recovery equipment technique and specifically relates to a sand setting and dewatering separator is related to.
Background
At present, due to the restriction of production conditions, after the fracturing of most of oil and gas wells in China is developed, blowout must be carried out, natural gas can enter sand removing equipment after a small amount of sand and liquid is contained in the natural gas after a period of blowout, natural gas produced in the initial and middle period of blowout contains a large amount of sand, flowback liquid, oil stain and sewage and cannot enter the sand removing equipment, so that the natural gas cannot directly enter a gas transmission pipe network for outward transmission, and can only be discharged or combusted, for example, a Su Li Ge gas field in an oil field in Changqing is taken as an example, in the rolling development of more than 1000 natural gas wells every year, the discharged or combusted natural gas reaches hundreds of millions of cubic meters, and resource waste and environmental pollution are caused.
In order to actively respond to national environmental protection policies in the oil and gas industry, higher environmental protection requirements are provided for the exploration and development of natural gas, oil stains and sewage are prevented from falling to the ground in the drilling, trial production and production processes, and the emptying and burning of the natural gas are reduced to the maximum extent. How to solve the recycling of the natural gas before and during pressure blowout, reduce energy waste and protect the environment is urgent.
At present, 2 methods for solving the fracturing open flow natural gas are provided in China, but the problems of natural gas resource waste, environmental pollution, safe production and the like cannot be solved.
1. And carrying out blowout combustion and emptying on the spot. The natural gas is treated by entering an original blowout pipeline and a blowout control oil nozzle into a burning tank or a burning pool through a gas testing operation team, emptying the natural gas through ignition, burning and emptying, and entering a gas transmission pipe network after burning for about 10 days until less sand and less liquid in the natural gas, so that the production mode causes waste of natural gas resources, and the natural gas is conveyed to a high-pressure opening and burnt in the burning tank or the burning pool to cause potential safety hazards to personnel, surrounding equipment and buildings, so that the hazards of fire, overpressure and the like are easily caused;
2. and recovering after sand removal by a simple sand removal device and a simple sand removal method. The sand removing mode is heavy, the process devices are various, only the sand removing function is realized under the condition of low pressure, the liquid removing function is not realized, the sand removing and liquid removing capability is not enough, and the function of purifying and recovering the fracturing open flow natural gas cannot be realized; the potential safety hazard and the production cost are increased easily due to incomplete desanding; the liquid removal capacity can not meet the production requirement; the operation can be carried out only in the middle and later periods of open flow, and the combustion still needs to be carried out for a period of time in the early period, thus causing resource waste and environmental pollution.
The blowout well points are many, the coverage is wide, the productivity and the stable period are uncertain, the working condition change is large, the gas quantity and the pressure change range are large, a large amount of sand, flowback liquid and sewage are carried in the natural gas in the early and middle periods, the danger coefficient is extremely high, the gas transmission pipe network is required to be free of sand and liquid, the mode of blowout, combustion and emptying is mainly adopted at present, and other desanders in the market cannot meet the requirements due to limitation and practicability.
The applicant has found that the prior art has at least the following technical problems: at present, the sand and liquid removing device in the natural gas recovery equipment for solving the pressure open flow mainly comprises the following 2 devices:
1. a conventional vertical desander. The pressure bearing capacity of the equipment is below 15Mpa, the sand removing capacity is low, and only a small amount of fracturing sand and fracturing fluid processing capacity are provided. The sand amount is almost not generated and the liquid amount is reduced after 10 days after the blowout point of the gas well is ignited. And the multi-application is a wellhead production-seeking test stage. The sand removal and liquid removal capacity is limited, and the natural gas in the previous 10 days is not recovered and is completely wasted.
2. A conventional horizontal desander. The equipment has low sand removing and liquid removing efficiency and the pressure bearing capacity is below 15 MPa. The sand and liquid are reduced after 7 days after the blowout point of the gas well is ignited, and then the sand and liquid enter the equipment. The treated natural gas has large sand content and liquid content, can not be directly recovered, and further increases the burden of downstream equipment. The sand removal is incomplete, and the downstream equipment is damaged. And 5-7 natural gas is directly wasted and cannot be completely recycled.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a settling sand and liquid separator to solve the technical problems of lower sand removing capability of sand and liquid removing equipment and natural gas resource waste in the prior art; the utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a pair of sand setting and dewatering separator, include:
the tank body is provided with an air inlet/liquid outlet at one end, and the air inlet/liquid outlet is connected with an air inlet/liquid pipeline;
the top of the tank body is provided with a natural gas outlet, and the bottom of the tank body is provided with a sand discharge port and a liquid discharge port;
and the anti-impact device is fixed in the tank body and can change the air inlet/liquid direction and reduce the flow rate of the natural gas.
Preferably, the impact prevention device comprises:
the lattice baffle is fixed on the inner wall of the top of the tank body and is arranged close to the air/liquid inlet, and the lattice baffle extends from the top of the tank body to the inside of the tank body;
the impingement plate is fixed on the lattice baffle and arranged on one side of the lattice baffle, which faces the air/liquid inlet; the natural gas carrying sand and liquid can change direction and reduce flow velocity after flowing through the impingement plate.
Preferably, the grid baffle extends to the central axis of the tank body.
Preferably, a flow guide plate is further arranged in the tank body, a first end of the flow guide plate is fixed on the inner wall of the tank body, a second end of the flow guide plate is connected to the sand discharge port and/or the liquid discharge port, and the first end of the flow guide plate is higher than the second end of the flow guide plate.
Preferably, the number of the guide plates is two, and two ends of the guide plates are respectively fixed on the end wall of the tank body and the sand discharge port and/or the liquid discharge port, so that fracturing sand and fracturing liquid can conveniently enter the sand discharge port and the liquid discharge port respectively.
Preferably, the top of the tank body is also provided with a safety valve port, and the safety valve port is connected with a safety valve.
Preferably, the top of the tank body is also provided with a pressure gauge port which is connected with an instrument so as to monitor the pressure value in the inner cavity of the tank body at any time.
Preferably, the top of the tank body is also provided with a hand hole, so that the tank body can be conveniently overhauled and used.
Preferably, a liquid level meter port is arranged on the side surface of the tank body and is connected with the liquid level meter.
Preferably, the bottom of the tank body is provided with a saddle-type support.
The utility model provides a sand setting and dewatering separator compares with prior art, has following beneficial effect: the natural gas flows to the anti-impact device through the gas inlet/liquid port, and the anti-impact device can change the direction of the natural gas and sand and liquid carried by the natural gas, so that the flow speed of the natural gas is greatly reduced, the sand setting and liquid removing efficiency is effectively improved, and the direct damage of fracturing sand and liquid to the tank body is prevented; the natural gas can flow out through the natural gas export on jar body upper portion, and the sand body that the natural gas carried is discharged through sand discharge port, and liquid discharges through the leakage fluid dram, and above-mentioned device has avoided the unable operation in the middle and preceding period in the natural gas degritting deliquiding, still ignites the drawback of unloading, improves, perfects process units's degritting, deliquiding, purification performance, has realized that the natural gas blowout complete stage is not igniteed, has effectually accomplished the recycle of great degree to the natural gas.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the settling-sand separator of the present invention.
FIG. 1, inlet/outlet; 2. a natural gas outlet; 3. a liquid discharge port; 4. a sand discharge port; 5. hand hole; 6. a pressure gauge port; 7. a level gauge port; 8. a safety valve port; 9. an elliptical end enclosure; 10. a fender; 11. a grid baffle; 12. a baffle; 13. saddle support.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", and the like indicate orientations or positional relationships based on those 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 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 description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, fig. 1 is a schematic view of the overall structure of the settling-sand separator of the present invention.
The utility model provides a sand setting and dewatering separator, include: the tank body is provided with an air inlet/liquid outlet at one end, and the air inlet/liquid outlet is connected with an air inlet/liquid pipeline;
the top of the tank body is provided with a natural gas outlet 2, and the bottom of the tank body is provided with a sand discharge port 4 and a liquid discharge port 3;
and the anti-impact device is fixed in the tank body and can change the air inlet/liquid direction and reduce the flow rate of the natural gas.
Wherein, fig. 1 shows an optional embodiment of the tank body, the tank body of the horizontal sand setting and dewatering separator is a closed inner cavity, the tank body is a barrel-shaped annular tank body, and two ends of the tank body are provided with elliptical seal heads 9. The air inlet/liquid outlet is connected with an air inlet/liquid pipeline, the natural gas outlet 2 is connected with a pressure reduction metering device, and deposited sand liquid is discharged through a sand discharge port 4 and a liquid discharge port 3 respectively.
The utility model provides a sand setting and dewatering separator, its beneficial effect is: the natural gas flows to the anti-impact device through the gas inlet/liquid port, and the anti-impact device can change the direction of the natural gas and sand and liquid carried by the natural gas, so that the flow speed of the natural gas is greatly reduced, the sand setting and liquid removing efficiency is effectively improved, and the direct damage of fracturing sand and liquid to the tank body is prevented; the device avoids the defects that natural gas cannot run in the early and middle stages of desanding and liquid removing and still ignites and is discharged, improves and perfects the desanding, liquid removing and purifying functions of the process device, realizes the non-ignition of the natural gas in the whole stage of open flow, and effectively recycles the natural gas to the maximum extent.
As an alternative embodiment, referring to fig. 1, the anti-impact device includes: the lattice baffle 11 is fixed on the inner wall of the top of the tank body and is arranged close to the air inlet/liquid outlet, and the lattice baffle 11 extends from the top of the tank body to the inside of the tank body; the impingement plate 10 is fixed on the lattice baffle 11 and is arranged on one side of the lattice baffle 11 facing the air inlet/liquid outlet; the natural gas carrying sand and liquid can change direction and reduce flow velocity after flowing through the impingement plate 10.
Preferably, above-mentioned impingement baffle 10 sets up perpendicularly, and impingement baffle 10's effect is to admit air/liquid direction change, makes natural gas flow rate greatly reduced, and effectual improvement sand setting takes off liquid efficiency to prevent that fracturing sand, liquid are direct to the injury of the jar body, the effect of check baffle 11 is to impingement baffle 10 effect further strengthen and fixed impingement baffle 10.
As an alternative embodiment, in order to achieve better anti-impact and speed-reduction effects without affecting the normal movement of the fluid, as shown in fig. 1, the grid baffle 11 extends to the central axis of the tank. The impingement baffle 10 and the grid baffle 11 may be solid plates welded to the tank body, near the top of the tank at the gas/liquid inlet.
As an alternative embodiment, referring to fig. 1, a deflector 12 is further disposed inside the tank, a first end of the deflector 12 is fixed on the inner wall of the tank, a second end of the deflector 12 is connected to the sand discharge port 4 and/or the liquid discharge port 3, and the first end of the deflector 12 is higher than the second end of the deflector 12.
The sand discharge port 4 and the liquid discharge port 3 are arranged adjacently, and the guide plate is obliquely arranged, so that sand and liquid can be conveniently introduced into the position of the discharge port.
The guide plate 12 is used for pouring deposited fracturing sand and fracturing fluid into the sand discharge port 4 and the fluid discharge port 3, so that the sand discharge and the fluid discharge are smoother. The baffle 12 may be a solid plate welded to the bottom of the tank. The first end refers to the end connected to the end wall of the tank, and the second end refers to the end connected to the sand discharge port 4 and/or the liquid discharge port 3.
As an alternative embodiment, as shown in fig. 1, the number of the flow guide plates 12 is two, and both ends of the two flow guide plates 12 are respectively fixed on the end wall of the tank body and the sand discharge port 4 and/or the liquid discharge port 3, so that the fracturing sand and the fracturing liquid respectively enter the sand discharge port 4 and the liquid discharge port 3.
Preferably, two guide plates 12 are symmetrically arranged, the sand discharge port 4 and the liquid discharge port 3 are arranged at the middle position of the bottom of the tank body, and the two guide plates 12 are beneficial to respectively introducing sand and liquid in the whole tank body into the sand discharge port 4 and the liquid discharge port 3.
As an alternative embodiment, as shown in fig. 1, a safety valve port 8 is further provided at the top of the tank body, and a safety valve is connected to the safety valve port 8.
The function of the above structure is: the safety valve port 8 is connected with a safety valve, when the equipment breaks down in operation or the pressure of a wellhead is suddenly increased to cause the internal pressure カ of the horizontal type sand setting and separating device to be overlarge, the safety valve is automatically started to discharge the pressure in the horizontal type sand setting and separating device, and the effect of protecting the horizontal type sand setting and separating device is achieved.
As an alternative embodiment, as shown in fig. 1, the top of the tank is further provided with a pressure gauge port 6, which is connected with a meter to monitor the pressure value in the inner cavity of the tank at any time.
The function of the above structure is: the pressure gauge port 6 is connected with an instrument, and the pressure value in the closed inner cavity of the horizontal type sand setting and separating separator is monitored at any time through the instrument.
As an alternative embodiment, as shown in fig. 1, the top of the tank body is further provided with a hand hole 5 to facilitate the maintenance and use in the tank body.
Above-mentioned hand hole 5 is convenient to have the hand hole 5 to overhaul when there is the jam scheduling problem in the equipment.
As an alternative embodiment, with reference to fig. 1, the side of the tank is provided with a level gauge port 7, which is connected to a level gauge.
The liquid level meter port 7 is connected with the liquid level meter, so that the liquid level value in the closed inner cavity of the horizontal sand setting and dewatering separator can be monitored at any time through the liquid level meter, and real-time monitoring is facilitated.
As an alternative embodiment, the bottom of the tank is provided with a saddle 13. The saddle support 13 is used to support the entire tank.
The working process of the sand setting and dewatering device is as follows: after natural gas with pressure lower than 30MPa and carrying a large amount of fracturing sand and fracturing fluid enters a closed inner cavity of the sand setting and dehydrating separator through the gas inlet/liquid outlet, the flow rate of the natural gas is greatly reduced under the action of the anti-impact plate 10 and the grid baffle plate 11 of the tank body, gas phase, liquid phase and solid phase in the natural gas are gradually separated at the moment, the gas rises and flows out through the natural gas outlet 2, liquid and solid are deposited on the inner wall of the horizontal sand setting and dehydrating separator, the solid is discharged through the sand discharge port 4 in a transferring manner, the liquid in the liquid is discharged through the liquid discharge port 3, and 99% of the fracturing sand and the fracturing fluid in the natural gas sprayed from the gas inlet liquid outlet can be discharged through the horizontal sand setting and dehydrating separator.
The equipment has strong adaptability and wide working range, so that fracturing open flow natural gas can directly enter a gas transmission pipe network or be transported by a CNG tank car in all stages, the continuous and stable production of a gas well is ensured, and the final accumulated gas production rate of a single well is improved.
The particular features, structures, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A sand setting separator comprising:
the tank body is provided with an air inlet/liquid outlet at one end, and the air inlet/liquid outlet is connected with an air inlet/liquid pipeline;
the top of the tank body is provided with a natural gas outlet, and the bottom of the tank body is provided with a sand discharge port and a liquid discharge port;
and the anti-impact device is fixed in the tank body and can change the air inlet/liquid direction and reduce the flow rate of the natural gas.
2. The debris separator according to claim 1, wherein said scour prevention means comprises:
the lattice baffle is fixed on the inner wall of the top of the tank body and is arranged close to the air/liquid inlet, and the lattice baffle extends from the top of the tank body to the inside of the tank body;
the impingement plate is fixed on the lattice baffle and arranged on one side of the lattice baffle, which faces the air/liquid inlet; the natural gas carrying sand and liquid can change direction and reduce flow velocity after flowing through the impingement plate.
3. The debris separator according to claim 2 wherein said baffle extends to said central axis of said tank.
4. The desilting and dewatering separator according to claim 1 or 2, wherein a deflector is further arranged inside the tank, a first end of the deflector is fixed on the inner wall of the tank, a second end of the deflector is connected to the sand discharge port and/or the liquid discharge port, and the first end of the deflector is higher than the second end of the deflector.
5. The debris separator according to claim 4, wherein said number of said flow guide plates is two, and both ends of said two flow guide plates are fixed to said end wall of said tank and said sand discharge port and/or said liquid discharge port, respectively, so as to allow frac sand and frac fluid to enter said sand discharge port and said liquid discharge port, respectively.
6. The debris separator according to claim 1, wherein a relief valve port is further provided at the top of the tank, and a relief valve is connected to the relief valve port.
7. The desilting and dewatering separator according to claim 1 or 6, wherein a pressure gauge port is further provided at the top of the tank and connected to a gauge for monitoring a pressure value in the inner chamber of the tank at any time.
8. The debris separator according to claim 1, wherein said tank body is further provided with a hand hole at the top thereof for facilitating the maintenance of said tank body.
9. The debris separator according to claim 1, wherein a side surface of said tank is provided with a level meter port, which is connected to a level meter.
10. The debris separator according to claim 1 wherein said tank is provided with a saddle support at the bottom thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920977343.1U CN210105838U (en) | 2019-06-26 | 2019-06-26 | Sand setting and dewatering separator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920977343.1U CN210105838U (en) | 2019-06-26 | 2019-06-26 | Sand setting and dewatering separator |
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| Publication Number | Publication Date |
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| CN210105838U true CN210105838U (en) | 2020-02-21 |
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| CN201920977343.1U Active CN210105838U (en) | 2019-06-26 | 2019-06-26 | Sand setting and dewatering separator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114961692A (en) * | 2022-06-23 | 2022-08-30 | 山西蓝焰煤层气工程研究有限责任公司 | Automatic drainage gas production equipment for medium-high-rank coal-bed gas well |
| CN116658147A (en) * | 2023-07-28 | 2023-08-29 | 四川凌耘建科技有限公司 | Built-in inclined plate sand removal and separation integrated device and sand removal and separation method |
-
2019
- 2019-06-26 CN CN201920977343.1U patent/CN210105838U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114961692A (en) * | 2022-06-23 | 2022-08-30 | 山西蓝焰煤层气工程研究有限责任公司 | Automatic drainage gas production equipment for medium-high-rank coal-bed gas well |
| CN116658147A (en) * | 2023-07-28 | 2023-08-29 | 四川凌耘建科技有限公司 | Built-in inclined plate sand removal and separation integrated device and sand removal and separation method |
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