CN113058293B - Self-cleaning safety type separator, separation and cleaning integrated system using separator and use method of system - Google Patents
Self-cleaning safety type separator, separation and cleaning integrated system using separator and use method of system Download PDFInfo
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- CN113058293B CN113058293B CN202110293404.4A CN202110293404A CN113058293B CN 113058293 B CN113058293 B CN 113058293B CN 202110293404 A CN202110293404 A CN 202110293404A CN 113058293 B CN113058293 B CN 113058293B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0042—Degasification of liquids modifying the liquid flow
- B01D19/0052—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0042—Degasification of liquids modifying the liquid flow
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/0804—Cleaning containers having tubular shape, e.g. casks, barrels, drums
- B08B9/0813—Cleaning containers having tubular shape, e.g. casks, barrels, drums by the force of jets or sprays
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/067—Separating gases from drilling fluids
Abstract
The invention discloses a self-cleaning safety separator and a separation and cleaning integrated system using the same, belongs to the technical field of petroleum drilling, can solve the problems that a liquid-gas separator in the prior art is inconvenient to clean, is high in cleaning difficulty, long in cleaning time, consumes a large amount of labor and the like, is ingenious in structure, can be directly improved and optimized on previous equipment continuously, and further provides a using method of the system, so that after the self-cleaning safety separator efficiently completes a separation task, the equipment can be cleaned quickly, and water resources are saved as much as possible.
Description
Technical Field
The invention belongs to the technical field of petroleum drilling, and particularly relates to a self-cleaning safety separator, a separation and cleaning integrated system using the separator and a using method of the system.
Background
In the petroleum drilling industry, the liquid-gas separation technology is widely applied in industry, and mainly aims to separate and eliminate harmful substances or recover useful substances. In the industry, the principles of liquid-gas separation technology mainly include gravity settling, inertial collision, centrifugal separation, baffling separation, wire mesh separation, ultrafiltration separation, flavoring separation, electrostatic attraction, disintegration, and the like.
In a liquid-gas separator commonly used in the prior art, drilling fluid enters the separator from a liquid inlet tangent line of the separator, falls on a series of inner baffles along the inner wall, collides with the inner baffles, increases the exposed surface area, flows downwards to cause a turbulent flow state, and enables gas to be separated from the drilling fluid. The free gas is discharged through a gas outlet on the top of the tank, the length of the exhaust pipe is determined and equipped on site and is led to a safe place, and the degassed drilling fluid is discharged into a circulating tank. Liquid vapor separators are commonly used with electronic ignition devices for oil fields.
For example, my company developed a liquid-gas separator in 2017 and applied for a patent, published as "CN 207296930U" in 2018, 5 and 1, and named as "a liquid-gas separator", and provides a liquid-gas separator, which comprises a tank body (9), wherein the lower part of the tank body (9) is connected with a liquid discharge pipe (12), and the upper part of the tank body is connected with a mixed fluid input pipe (3) and an exhaust pipe (7), and is characterized in that: still including fixing the separating mechanism in jar body (9), separating mechanism includes interior barrel (4) and outer barrel (5), and outer barrel (5) are fixed in jar body (9), form airflow channel between outer barrel (5) and the jar body (9), form separation chamber (2) between interior barrel (4) and outer barrel (5), and the communicating outage with fluid-discharge tube (12) is seted up to separation chamber (2) lower part, and separation chamber (2) communicate with each other with blast pipe (7) through interior barrel (4), and output (1) of mixed fluid input tube (2) is located separation chamber (2). The separator is designed according to the actual conditions of a company by applying the technologies of cyclone centrifugal separation, gravity separation, sedimentation separation and the like, and has a good separation effect.
However, in the using process, after the separation work of the device is completed, a great deal of slurry is attached to the pipe wall of the liquid inlet, the inner cylinder wall, the outer cylinder wall, the tank body wall, the guide plate and the like, if the device is not cleaned in time, the slurry can be quickly adhered and solidified on the corresponding wall plate, so that the device is required to be detached and soaked before caked foreign matters are scraped off during cleaning, and thus, the liquid-gas separator is very difficult to clean, a great deal of manpower and material resources are required to be consumed, and a long cleaning time is required; in addition, in practical application, operators often find that the separator is not cleaned completely or even forget to clean the separator, so that slurry seriously blocks each pipeline or each inlet/outlet, a liquid outlet pipe does not discharge liquid when the separator is used again, the phenomenon that drilling liquid is sprayed out from an exhaust port is caused, and normal operation is seriously influenced.
Disclosure of Invention
In order to solve the problems, the invention provides a self-cleaning safety separator, a separation and cleaning integrated system using the separator and a using method of the system,
the purpose of the invention is realized by the following technical scheme:
a self-cleaning safety separator comprises a tank body, wherein the lower part of the tank body is connected with a discharge port; the upper part of the tank body is connected with an exhaust pipe and a fluid input pipe, a separating mechanism is fixed above the tank body, guide plates are arranged below the separating mechanism in the tank body in a staggered manner, a cleaning hole I is arranged on the tank body wall at the position flush with the separating mechanism, a high-pressure nozzle I is arranged at one end of the cleaning hole I in the tank body, a cleaning hole II is arranged on the tank body wall above each guide plate, a high-pressure nozzle II is arranged at one end of the cleaning hole II in the tank body, a cleaning hole III is arranged on the inner wall of the tank body below the guide plate at the bottommost end, an annular high-pressure nozzle connected with the cleaning hole III is also arranged in the tank body, one side outside the tank body of each cleaning hole I, cleaning hole II and cleaning hole III is connected with a water supply pipe, a valve I is arranged on the water supply pipe connected with the cleaning hole I, a valve II is arranged on the water supply pipe connected with the cleaning hole II, and a valve III is arranged on the pipe connected with the cleaning hole III, the discharge port is connected with a settling pipeline, the other end of the settling pipeline is connected with a three-way joint, the lower end of the three-way joint is connected with a blow-off pipe, and a blow-off pipe is arranged on the blow-off pipeThe valve, the lateral connection of three way connection connects the fluid-discharge tube, the fluid-discharge mouth end of the said fluid-discharge tube installs H2And the upper part of the tank body is provided with a pressure sensor, and the fluid input pipe is provided with a valve IV.
Further, the inclination of the guide plates is 15-20 degrees, and the distance between the adjacent guide plates is 100-300 cm.
Further, the nozzle direction of the high-pressure nozzle II is consistent with the inclination direction of the guide plate.
Furthermore, a blind plate is arranged below the bottom guide plate in the tank body, and the annular high-pressure nozzle is fixed on the blind plate and communicated with the cleaning hole III.
Further, a wall thickness sensor is further mounted at the upper part of the tank body.
The utility model provides a separation of separator washs integration system, includes this vapour and liquid separator, switch board, audible-visual annunciator and water tank, the water tank passes through water supply pipe and is connected with purge orifice I, purge orifice II and purge orifice III respectively, be equipped with valve V on the water supply pipe of water tank delivery port department, be equipped with electric water pump on the water supply pipe, the switch board respectively with pressure sensor, H2And the S detection device is in control connection with the audible and visual alarm.
Furthermore, a filter is arranged on a water supply pipeline between the water tank and the electric water pump, and a liquid level sensor is arranged on the water tank.
Further, the valve I, the valve II, the valve III, the valve IV, the valve V and the sewage discharge valve are electromagnetic valves or electric control valves, and the control cabinet is respectively in control connection with the valve I, the valve II, the valve III, the valve IV, the valve V, the sewage discharge valve, the electric water pump, the liquid level sensor and the wall thickness sensor.
A use method of a separation and cleaning integrated system comprises the following steps:
separate drilling fluid
A. Closing a valve I, a valve II, a valve III and a sewage discharge valve on a water supply pipeline, opening a valve IV on a fluid input pipeline, allowing fluid to be separated to enter a tank body of the self-cleaning safety separator from a fluid input pipe, centrifugally separating by a separation mechanism in the tank body, discharging most of gas from an exhaust pipe, and allowing the fluid to fall onto a guide plate;
B. the residual fluid in the step A continuously falls to the lower part of the tank body along the guide plates which are arranged in a staggered mode until the fluid falls into the tank body from the last guide plate, the fluid is filled in a settling pipeline for settling separation, the separated gas is continuously discharged from an exhaust pipe, the obtained fluid without gas overflows from a liquid discharge port, and finally the semi-fluid which is settled near the sewage discharge port is discharged from the sewage discharge port;
C. when the audible and visual alarm connected with the control cabinet gives an alarm, if the alarm indicates H2S detection device detects H2When S is gas, closing a valve IV on the fluid input pipe, preventing the drilling fluid from being discharged, and reminding the subsequent treatment; if the pressure sensor is prompted to overload, the pressure is released in time or the fluid input rate is slowed down;
cleaning gas-liquid separator
D. After the self-cleaning safety separator finishes the separation operation of the drilling fluid, a blow-down valve is opened until the drilling fluid in the tank body and the inside of a liquid discharge pipe automatically flows out of a blow-off port, an electric water pump, a valve I, a valve II and a valve V are opened after 8-15min, and a high-pressure nozzle I which is connected with clear water is used for cleaning a separation mechanism in the tank body, the orifice of a fluid input pipe and the upper part of the tank body; the high-pressure nozzle II cleans the guide plate in the tank body and the column body for fixing the guide plate;
E. and after 1-2min, closing the valve I and the valve II, opening the valve III, cleaning a sedimentation tank and a sedimentation pipeline in the tank body by the annular high-pressure nozzle, closing the electric water pump, the valve III and the valve V when the liquid level of the water tank reaches a preset lower limit value, and closing the sewage discharge valve after 1-2 min.
The beneficial effects of this technical scheme are as follows:
firstly, the self-cleaning safety separator adopted in the invention is a further improvement on the existing gas-liquid separator of the company, and the settling tank part of the existing gas-liquid separator is lengthened with the settling pipe, thereby being more beneficial to settling separation. On the premise of ensuring that the expected separation effect can be achieved, the gas-liquid separator is further improved to ensure that the gas-liquid separator can achieve the expected separation effectThe quick cleaning can be realized, the problem that slurry seriously blocks each pipeline or each inlet/outlet due to cleaning lag or forgetting cleaning and cannot be started in time is avoided, and the problems of difficulty in cleaning, long time consumption and incomplete cleaning of cleaning workers are solved. Among this technical scheme, set up cleaning hole I, cleaning hole II, cleaning hole III on the jar wall of jar body lateral part to correspond corresponding high pressure nozzle I, high pressure nozzle II, annular high pressure nozzle and cleaning hole I, cleaning hole II, cleaning hole III and install, and can let high pressure nozzle I, high pressure nozzle II, annular high pressure nozzle avoid as far as with fluid direct contact, simultaneously, cleaning hole I, cleaning hole II, cleaning hole III can also regard as the maintenance hole. In addition, the existing equipment is additionally provided with H2The S detection device and the pressure sensor are convenient for monitoring the internal pressure of the tank body at any time and monitoring whether the liquid outlet contains H or not2S is gas, so that emergency situations can be responded to conveniently and timely, and the safety is higher. The structure is ingenious and reasonable, the popularization is easy, meanwhile, the equipment can be directly upgraded on the original equipment, and the cost is saved.
According to the actual test and application, the inclination of the guide plate and the distance between the adjacent guide plates are continuously adjusted, and finally the inclination of the guide plate is determined to be 15-20 degrees; when the distance between the adjacent guide plates is 100-300cm, the separation effect is better, of course, the number of layers of the guide plates is also important, and the total size (the size of the volume of the separation cavity) of the whole gas-liquid separator can be adjusted automatically in practical application.
In the invention, the nozzle direction of the high-pressure nozzle II is consistent with the inclination direction of the guide plate, so that the cleaning is convenient.
In addition, the annular high-pressure nozzle is fixed on the blind plate at the cleaning opening of the tank body, so that the annular high-pressure nozzle and the blind plate can be taken out together during maintenance, and equipment maintenance is facilitated.
In the invention, the wall thickness sensor is also arranged on the upper part of the tank body, and is arranged on the upper part of the tank body which is only contacted with gas and easy to become thin, so that the wall thickness of the tank body can be detected regularly, the wall thickness change can be monitored, equipment can be replaced/maintained in time, and the use safety can be ensured.
Sixthly, in the invention, further, the separation and cleaning integrated system using the gas-liquid separator is skillfully designed to comprise the gas-liquid separator, a control cabinet, an audible and visual alarm and a water tank, wherein the water tank is respectively connected with a cleaning hole I, a cleaning hole II and a cleaning hole III through water supply pipelines, a valve V is arranged on the water supply pipeline at the water outlet of the water tank, an electric water pump is arranged on the water supply pipeline, and the control cabinet is respectively connected with a pressure sensor and a H-shaped valve2S detection device and audible-visual annunciator control connection, like this, through add on this novel vapour and liquid separator and establish water tank, switch board and audible-visual annunciator to the rational planning connected mode can show this vapour and liquid separator 'S operational aspect through the switch board, and carry out the early warning to the condition that has the potential safety hazard, guarantee equipment normal operating, and guarantee user' S personal safety.
And a filter is arranged on a water supply pipeline between the water tank and the electric water pump, and a liquid level sensor is arranged on the water tank, so that automatic water supplement can be realized conveniently after the water tank is externally connected with a water source.
Eighthly, according to the invention, the design of the filter can intercept most solid particles, reduce the damage to the electric water pump and prolong the service life of the electric water pump, and in addition, new impurities can be prevented from being brought into the tank body to influence the subsequent process.
The method can ensure that the drilling fluid is fully separated, and can quickly enter a cleaning stage after the equipment completes separation, so that the phenomena of caking, pipeline blockage and the like caused by untimely cleaning are avoided, and normal operation is not influenced; the valve on the water supply pipeline is skillfully opened and closed by stages, the interior of the tank body is fully cleaned, and water resources are saved as much as possible; in addition, according to the process in the technical scheme, the electromagnetic valves can be selected for each valve and connected with the control cabinet, so that automatic cleaning is convenient to realize, and time and labor are saved.
Drawings
FIG. 1 is a schematic structural view of a self-cleaning safety separator of the present invention.
FIG. 2 is a schematic structural view of another embodiment of the self-cleaning safety decoupler of the present invention.
FIG. 3 is a schematic structural diagram of the self-cleaning safety type separator used for the separation and cleaning integrated system.
Fig. 4 is an enlarged view of the structure of the position of the high-pressure nozzle II in the present invention.
Fig. 5 is a control schematic diagram in embodiment 8.
Wherein, 1, a tank body; 2. an outlet port; 3. an exhaust pipe; 4. a fluid input tube; 5. a separating mechanism; 6. a baffle; 7. cleaning holes I; 8. a high-pressure nozzle I; 9. a cleaning hole II; 10. a high pressure nozzle II; 11. cleaning holes III; 12. an annular high pressure nozzle; 13. a water supply pipe; 14. a valve I; 15. a valve II; 16. a valve III; 17. settling the pipeline; 18. a three-way joint; 19. a blow-off pipe; 20. a blowdown valve; 21. a liquid discharge pipe; 22. h2S, a detection device; 23. a pressure sensor; 24. a valve IV; 25. a blind plate; 26. a wall thickness sensor; 27. a control cabinet; 28. an audible and visual alarm; 29. a water tank; 30. a valve V; 31. an electric water pump; 32. a filter; 33. a liquid level sensor.
Detailed Description
The above-mentioned embodiments are further described in detail for the purpose of illustrating the invention, the technical solutions and the advantages, it should be understood that the above-mentioned embodiments are only exemplary of the invention, and are not intended to limit the invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the invention should be included in the protection scope of the invention.
Example 1
A self-cleaning safety separator belongs to the technical field of petroleum drilling, and comprises a tank with reference to figure 1The lower part of the body 1 and the tank body 1 is connected with a discharge port 2; the upper part of the tank body 1 is connected with an exhaust pipe 3 and a fluid input pipe 4, a separating mechanism 5 is fixed above the tank body 1, guide plates 6 are arranged below the separating mechanism 5 in the tank body 1 in a staggered manner, the wall of the tank body 1 is provided with a cleaning hole I7 at the position flush with the separating mechanism 5, one end of the cleaning hole I7 in the tank body 1 is provided with a high-pressure nozzle I8, the wall of the tank body 1 above each guide plate 6 is provided with a cleaning hole II9, one end of the cleaning hole II9 in the tank body 1 is provided with a high-pressure nozzle II10, the inner wall of the tank body 1 below the guide plate 6 at the bottom end is provided with a cleaning hole III11, the tank body 1 is also internally provided with an annular high-pressure nozzle 12 connected with the cleaning hole III11, one side of the tank body 1 outside the cleaning hole I7, the cleaning hole II9 and the cleaning hole III11 is connected with a water supply pipe 13, a valve I14 is arranged on the water supply pipe 13 connected with the cleaning hole I7, and a valve II15 is arranged on the water supply pipe connected with the cleaning hole II9, be equipped with valve III16 on the pipeline of being connected with purge orifice III11, discharge port 2 is connected with settlement pipeline 17, the other end of settlement pipeline 17 is connected with three way connection 18, drain pipe 19 is connected to three way connection 18's lower extreme, is equipped with blowdown valve 20 on the drain pipe 19, and three way connection 18's side connection fluid-discharge tube 21, H is installed to the discharge liquor mouth end of fluid-discharge tube 212S detection device 22, pressure sensor 23 is installed on the upper portion of jar body 1, be equipped with valve IV24 on the fluid input tube 4.
The embodiment is the most basic embodiment, when in use, the inspection equipment is standby after being normal, and the drilling fluid is subjected to gas-liquid separation operation according to the previous normal operation mode: closing a valve I14, a valve II15, a valve III16 and a sewage valve 20 on a water supply pipe 13, opening a valve IV24 on a fluid input pipe 4, allowing the fluid to be separated to enter a tank body 1 of the self-cleaning safety separator from the fluid input pipe 4, centrifugally separating by a separating mechanism 5 in the tank body 1, discharging most of gas from an exhaust pipe 3, and allowing the fluid to fall onto a guide plate 6; the fluid continuously drops to the lower part of the tank body 1 along the guide plates 6 which are arranged in a staggered way until the fluid drops into the tank body 1 from the last guide plate 6, the fluid is filled in the sedimentation pipeline 17 for sedimentation separation, the separated gas is continuously discharged from the exhaust pipe 3, and the obtained fluid without gasOverflowing from the drain outlet, and finally discharging the semifluid settled near the drain outlet from the drain outlet, wherein H is2The S detecting device 22 is used for detecting whether the liquid discharge port has H2S gas; the pressure sensor 23 monitors the pressure in the equipment, so that potential safety hazards in the operation of the equipment are eliminated in time, and the stable operation of the equipment is ensured.
When the gas-liquid separator finishes the gas-liquid separation operation of the drilling fluid, the gas-liquid separator is cleaned in time, and the specific operation method comprises the following steps: the sewage valve 20 is opened until the drilling fluid in the tank body 1 and the drain pipe 21 automatically flows out from the sewage outlet, after a certain time, the valve I14 and the valve II15 are opened, the water supply pipe 13 supplies clean water to the gas-liquid separator, the high-pressure nozzle I8 which is connected with the clean water cleans the separation mechanism 5 in the tank body 1, the orifice of the fluid input pipe 4 and the upper part of the tank body 1, and the high-pressure nozzle II10 cleans the guide plate 6 in the tank body 1 and the column body which fixes the guide plate 6; after the expected cleaning result is achieved, the valve I14 and the valve II15 are closed, the valve III16 is opened, the annular high-pressure nozzle 12 cleans the sedimentation tank and the sedimentation pipeline 17 in the tank body 1, the valve III16 is closed after the cleaning reaches the standard, and the sewage discharge valve 20 is closed after water in the tank body 1 and the pipeline is drained, so that the cleaning work of the self-cleaning type safe separator is completed.
In the in-service use in-process, be applied to different environment, often select for use the vapour and liquid separator of different specifications, the volume that faces jar body 1 of selecting for use is different certainly, when jar body 1 is big enough, need design a plurality of purge orifice II9, supporting a plurality of high pressure nozzle II10, just can reach the mesh of abundant washing, and in the same way, purge orifice I7 also can design into the multiunit with supporting high pressure nozzle I8, when the maintenance, the purge orifice can also regard as the inspection hole to use.
Example 2
This embodiment is a further improvement over embodiment 1, except that the pitch of the baffles 6 is 15 °, and the spacing between adjacent baffles 6 is 100 cm.
Example 3
The present embodiment is different from embodiments 1 and 2 in that, referring to fig. 4, the nozzle direction of the high-pressure nozzle II10 coincides with the inclination direction of the baffle 6.
In the embodiment, the high-pressure nozzle I8 and the high-pressure nozzle II10 are solid conical nozzles, the annular high-pressure nozzle 12 is a multi-head combined nozzle, and the normal use is influenced by the fact that the annular high-pressure nozzle is contacted with drilling fluid as far as possible during installation.
Example 4
Compared with the embodiment 1-3, the difference lies in that, referring to fig. 2, a blind plate 25 is arranged below the bottom guide plate 6 in the tank body 1, the annular high-pressure nozzle 12 is fixed on the blind plate 25 and communicated with the cleaning hole III11, the annular high-pressure nozzle 12 is conveniently fixed by arranging the blind plate 25 in the embodiment, and in addition, the annular high-pressure nozzle 12 and the blind plate 25 can be integrally taken out for convenient equipment maintenance during maintenance.
Example 5
Compared with the embodiments 1-4, the difference of this embodiment is that, referring to fig. 2, the wall thickness sensor 26 is further installed on the upper portion of the tank body 1, the wall thickness sensor 26 in this embodiment is installed on the upper portion of the tank body 1 which is not in contact with liquid, only in contact with gas and is easy to be thinned, and data fed back by the wall thickness sensor 26 is periodically checked to judge whether maintenance or equipment replacement is needed.
Example 6
The embodiment is a further improvement on the basis of embodiment 5, and referring to fig. 3 and 4, the self-cleaning safety separator is applied to a separation and cleaning integrated system and skillfully combines the existing audible and visual alarm 28 to realize the automatic monitoring of whether the liquid discharge opening of the gas-liquid separator in the system has H or not2S overflow, whether the pressure in the tank body 1 is abnormal or not and the like, so that safety accidents are avoided. The specific scheme is as follows:
the utility model provides a separation of separator washs integration system, belongs to oil drilling technical field, including this vapour and liquid separator, switch board 27, audible-visual annunciator 28 and water tank 29, water tank 29 is connected with purge orifice I7, purge orifice II9 and purge orifice III11 respectively through supply pipe 13 way, be equipped with valve V30 on the supply pipe 13 way of water tank 29 delivery port department, be equipped with electric water pump 31 on the supply pipe 13 way, switch board 27 respectively with pressure sensor 23, H2The S detection device 22 is in control connection with an audible and visual alarm 28.
The gas-liquid separator comprises a tank body 1, and the lower part of the tank body 1 is connected with a discharge port 2; the upper part of the tank body 1 is connected with an exhaust pipe 3 and a fluid input pipe 4, a separating mechanism 5 is fixed above the tank body 1, guide plates 6 are arranged below the separating mechanism 5 in the tank body 1 in a staggered manner, the wall of the tank body 1 is provided with a cleaning hole I7 at the position flush with the separating mechanism 5, one end of the cleaning hole I7 in the tank body 1 is provided with a high-pressure nozzle I8, the wall of the tank body 1 above each guide plate 6 is provided with a cleaning hole II9, one end of the cleaning hole II9 in the tank body 1 is provided with a high-pressure nozzle II10, the inner wall of the tank body 1 below the guide plate 6 at the bottom end is provided with a cleaning hole III11, the tank body 1 is also internally provided with an annular high-pressure nozzle 12 connected with the cleaning hole III11, one side of the tank body 1 outside the cleaning hole I7, the cleaning hole II9 and the cleaning hole III11 is connected with a water supply pipe 13, a valve I14 is arranged on the water supply pipe 13 connected with the cleaning hole I7, and a valve II15 is arranged on the water supply pipe connected with the cleaning hole II9, be equipped with valve III16 on the pipeline of being connected with purge orifice III11, discharge port 2 is connected with settlement pipeline 17, the other end of settlement pipeline 17 is connected with three way connection 18, drain pipe 19 is connected to three way connection 18's lower extreme, is equipped with blowdown valve 20 on the drain pipe 19, and three way connection 18's side connection fluid-discharge tube 21, H is installed to the discharge liquor mouth end of fluid-discharge tube 212S detection device 22, pressure sensor 23 is installed on the upper portion of jar body 1, be equipped with valve IV24 on the fluid input tube 4.
The inclination of the guide plates 6 is 15 degrees, the distance between every two adjacent guide plates 6 is 100cm, the direction of the high-pressure nozzle II10 is consistent with the inclination direction of the guide plates 6, a blind plate 25 is arranged below the bottom guide plate 6 in the tank body 1, the annular high-pressure nozzle 12 is fixed on the blind plate 25 and communicated with the cleaning hole III11, and a wall thickness sensor 26 is further installed on the upper portion of the tank body 1.
Example 7
The present embodiment is different from embodiment 6 in that a filter 32 is provided in the water supply pipe 13 between the water tank 29 and the electric water pump 31, and a liquid level sensor 33 is provided in the water tank 29.
Example 8
Compared with the embodiment 6, the difference of this embodiment is that the valve I14, the valve II15, the valve III16, the valve IV24, the valve V30 and the sewage valve 20 are all solenoid valves, and the control cabinet 27 is in control connection with the valve I14, the valve II15, the valve III16, the valve IV24, the valve V30, the sewage valve 20, the electric water pump 31, the liquid level sensor 33 and the wall thickness sensor 26, respectively.
In this embodiment, each valve in the scheme is an electromagnetic valve, and the control cabinet 27 is respectively connected with the valve I14, the valve II15, the valve III16, the valve IV24, the valve V30, the drain valve 20, the electric water pump 31, the liquid level sensor 33, and the wall thickness sensor 26 in a control manner, referring to the control schematic diagram shown in fig. 5, the controller controls the opening and closing of all the valves, so as to realize the one-touch cleaning of the self-cleaning safety separator.
The one-key cleaning is to control and connect the control cabinet 27 with the liquid level sensor 33, after the liquid level sensor 33 feeds back the water level condition in the water tank 29 to the control cabinet 27 in time, the control cabinet 27 controls the opening and closing of the valve V30 in time, and in addition, the control cabinet 27 controls the respective working time of the high-pressure nozzle I8, the high-pressure nozzle II10 and the annular high-pressure nozzle 12 by controlling the opening time of the valve I14, the valve II15 and the valve III16, thereby realizing the purpose of automatic cleaning.
Example 9
The embodiment provides a use method of a separation and cleaning integrated system, belongs to the technical field of oil drilling, and comprises the following steps:
separate drilling fluid
A. Closing a valve I14, a valve II15, a valve III16 and a sewage valve 20 on a water supply pipeline 13 of the self-cleaning safety separator in the separation and cleaning integrated system, opening a valve IV24 on a fluid input pipeline 4, allowing the fluid to be separated to enter a tank body 1 of the self-cleaning safety separator from the fluid input pipeline 4, centrifugally separating by a separating mechanism 5 in the tank body 1, discharging most of gas from an exhaust pipe 3, and allowing the fluid to fall onto a guide plate 6;
B. the residual fluid in the step A continuously falls to the lower part of the tank body 1 along the guide plates 6 which are arranged in a staggered mode until the fluid falls into the tank body 1 from the last guide plate 6, the fluid is filled in the settling pipeline 17 for settling separation, the separated gas is continuously discharged from the exhaust pipe 3, the obtained fluid without gas overflows from a liquid discharge port, and finally the semi-fluid which is settled near the sewage discharge port is discharged from the sewage discharge port;
C. when the audible and visual alarm 28 connected with the control cabinet 27 gives an alarm, if the prompt H indicates2S detection means 22 detects H2When S is gas, the valve IV24 on the fluid input pipe 4 is closed and the drilling fluid is prevented from being discharged, and the field staff is prompted to take emergency treatment measures; if the pressure sensor 23 is prompted to overload, the pressure is relieved in time or the fluid input rate is slowed down;
cleaning gas-liquid separator
D. After the self-cleaning safety separator finishes the separation operation of the drilling fluid, a 'one-key cleaning' button on a control cabinet 26 is pressed, the system automatically opens a sewage valve 20 until the drilling fluid in the tank body 1 and the drainage pipe 21 automatically flows out from a sewage outlet, after 15min, an electric water pump 31, a valve I14, a valve II15 and a valve V30 are opened, and a high-pressure nozzle I8 which is connected with clear water is used for cleaning the separation mechanism 5 in the tank body 1, the orifice of a fluid input pipe 4 and the upper part of the tank body 1; the high-pressure nozzle II10 cleans the guide plate 6 and the column body for fixing the guide plate 6 in the tank body 1;
E. and after 2min, closing the valve I14 and the valve II15, opening the valve III16, cleaning the sedimentation tank and the sedimentation pipeline 17 in the tank body 1 by the annular high-pressure nozzle 12, closing the electric water pump 31, the valve III16 and the valve V30 when the liquid level of the water tank 29 reaches a preset lower limit value, and closing the sewage discharge valve 20 after 2 min.
The separation and cleaning integrated system of the separator comprises a self-cleaning safety separator, a control cabinet 27, an audible and visual alarm 28 and a water tank 29, wherein the water tank 29 is respectively connected with a cleaning hole I7, a cleaning hole II9 and a cleaning hole III11 through a water supply pipe 13, a valve V30 is arranged on the water supply pipe 13 at the water outlet of the water tank 29, an electric water pump 31 is arranged on the water supply pipe 13, and the control cabinet 27 is respectively connected with a pressure sensor 23, an H sensor and a pressure sensor H32The S detection device 22 is connected with the audible and visual alarm 28 in a control way;
a filter 32 is arranged on a water supply pipeline 13 between the water tank 29 and the electric water pump 31, and a liquid level sensor 33 is arranged on the water tank 29;
the valve I14, the valve II15, the valve III16 and the valve V30 are electromagnetic valves, the valve IV24 and the sewage valve 20 are electrically controlled valves, and the control cabinet 27 is respectively in control connection with the valve I14, the valve II15, the valve III16, the valve IV24, the valve V30, the sewage valve 20, the electric water pump 31, the liquid level sensor 33 and the wall thickness sensor 26;
the self-cleaning safety separator comprises a tank body 1, wherein the lower part of the tank body 1 is connected with a discharge port 2; the upper part of the tank body 1 is connected with an exhaust pipe 3 and a fluid input pipe 4, a separating mechanism 5 is fixed above the tank body 1, guide plates 6 are arranged below the separating mechanism 5 in the tank body 1 in a staggered manner, the wall of the tank body 1 is provided with a cleaning hole I7 at the position flush with the separating mechanism 5, one end of the cleaning hole I7 in the tank body 1 is provided with a high-pressure nozzle I8, the wall of the tank body 1 above each guide plate 6 is provided with a cleaning hole II9, one end of the cleaning hole II9 in the tank body 1 is provided with a high-pressure nozzle II10, the inner wall of the tank body 1 below the guide plate 6 at the bottom end is provided with a cleaning hole III11, the tank body 1 is also internally provided with an annular high-pressure nozzle 12 connected with the cleaning hole III11, one side of the tank body 1 outside the cleaning hole I7, the cleaning hole II9 and the cleaning hole III11 is connected with a water supply pipe 13, a valve I14 is arranged on the water supply pipe 13 connected with the cleaning hole I7, and a valve II15 is arranged on the water supply pipe connected with the cleaning hole II9, be equipped with valve III16 on the pipeline of being connected with purge orifice III11, discharge port 2 is connected with settlement pipeline 17, the other end of settlement pipeline 17 is connected with three way connection 18, drain pipe 19 is connected to three way connection 18's lower extreme, is equipped with blowdown valve 20 on the drain pipe 19, and three way connection 18's side connection fluid-discharge tube 21, H is installed to the discharge liquor mouth end of fluid-discharge tube 212S detection device 22, pressure sensor 23 is installed on the upper portion of jar body 1, be equipped with valve IV24 on the fluid input tube 4.
The inclination of the guide plates 6 is 15 degrees, and the distance between every two adjacent guide plates 6 is 100 cm;
the nozzle direction of the high-pressure nozzle II10 is consistent with the inclination direction of the guide plate 6;
a blind plate 25 is arranged below the bottom guide plate 6 in the tank body 1, and the annular high-pressure nozzle 12 is fixed on the blind plate 25 and communicated with the cleaning hole III 11;
the upper part of the tank body 1 is also provided with a wall thickness sensor 26.
In this embodiment, the valves in the valve I14, the valve II15, the valve III16, the valve IV24, the valve V30 and the drain valve 20 may be solenoid valves or electric control valves, which are all automatically controlled according to actual requirements and comprehensive consideration of cost.
Example 10
This embodiment differs from the embodiments 1-9 in that the inclination of the baffle 6 is 20 °.
Example 11
This example is different from examples 1 to 10 in that the distance between adjacent baffles 6 is 300 cm.
Example 12
Compared with the embodiment 9, the difference of the embodiment is that in the step D, the sewage discharge valve 20 is opened until the drilling fluid in the tank body 1 and the drilling fluid in the liquid discharge pipe 21 automatically flow out of the sewage discharge port for 8min, the electric water pump 31, the valve I14, the valve II15 and the valve V30 are opened, and the high-pressure nozzle I8 connected with clean water is used for cleaning the separation mechanism 5, the orifice of the fluid input pipe 4 and the upper part of the tank body 1 in the tank body 1; the high-pressure nozzle II10 cleans the guide plate 6 and the column for fixing the guide plate 6 in the tank body 1.
In the step E, after 1min, closing the valve I14 and the valve II15, opening the valve III16, cleaning the sedimentation basin and the sedimentation pipeline 17 in the tank body 1 by the annular high-pressure nozzle 12, closing the electric water pump 31, the valve III16 and the valve V30 when the liquid level of the water tank 29 reaches a preset lower limit value, and closing the sewage discharge valve 20 after 1 min.
Example 13
Compared with the embodiment 9, the difference of the embodiment is that in the step D, the sewage discharge valve 20 is opened until the drilling fluid in the tank body 1 and the drilling fluid in the liquid discharge pipe 21 automatically flow out of the sewage discharge port for 10min, the electric water pump 31, the valve I14, the valve II15 and the valve V30 are opened, and the high-pressure nozzle I8 connected with clean water is used for cleaning the separation mechanism 5, the orifice of the fluid input pipe 4 and the upper part of the tank body 1 in the tank body 1; the high-pressure nozzle II10 cleans the guide plate 6 and the column for fixing the guide plate 6 in the tank body 1.
In the step E, after 90s, closing the valve I14 and the valve II15, opening the valve III16, cleaning the sedimentation basin and the sedimentation pipeline 17 in the tank body 1 by the annular high-pressure nozzle 12, after 10s, when the liquid level drops to the lower limit value preset by the liquid level of the water tank 29, closing the electric water pump 31, the valve III16 and the valve V30, and after 90s, closing the sewage discharge valve 20.
The method provided by the embodiment can ensure good cleaning effect and has low water consumption, and after the system is adopted and the corresponding operation method is combined, the cleaning time of the equipment can be shortened by more than 90 percent compared with the original cleaning time.
Claims (4)
1. An integrated system using a self-cleaning safety separator, characterized in that: including vapour and liquid separator, switch board (27), audible-visual annunciator (28) and water tank (29), water tank (29) are said and are connected with purge orifice I (7), purge orifice II (9) and purge orifice III (11) respectively through delivery pipe (13), delivery pipe (13) of water tank (29) delivery port department are said and are equipped with valve V (30), delivery pipe (13) are said and are equipped with electric water pump (31), switch board (27) respectively with pressure sensor (23), H2The S detection device (22) is in control connection with the audible and visual alarm (28);
the gas-liquid separator comprises a tank body (1), and the lower part of the tank body (1) is connected with a discharge port (2); the upper portion is connected with blast pipe (3) and fluid input pipe (4), and the inside top of jar body (1) is fixed with separating mechanism (5), and the below of the inside separating mechanism (5) of jar body (1) is crisscross to be provided with guide plate (6), wash hole I (7) have been seted up with separating mechanism (5) flush position on the jar body (1) wall, high pressure nozzle I (8), every are installed to the one end of wash hole I (7) in jar body (1) wall seted up wash hole I (7) on the jar body (1) wall of guide plate (6) topI (9), one end of the cleaning hole II (9) in the tank body (1) is provided with a high-pressure nozzle II (10), the inner wall of the tank body (1) below the guide plate (6) at the bottom is provided with a cleaning hole III (11), the tank body (1) is also internally provided with an annular high-pressure nozzle (12) connected with the cleaning hole III (11), one outer side of the tank body (1) of the cleaning hole I (7), the cleaning hole II (9) and the cleaning hole III (11) is connected with a water supply pipe (13), the water supply pipe (13) connected with the cleaning hole I (7) is provided with a valve I (14), the water supply pipe (13) connected with the cleaning hole II (9) is provided with a valve II (15), the pipeline connected with the cleaning hole III (11) is provided with a valve III (16), the discharge port (2) is connected with a settling pipeline (17), and the other end of the settling pipeline (17) is connected with a three-way joint (18), the lower end of the three-way joint (18) is connected with a sewage discharge pipe (19), a sewage discharge valve (20) is arranged on the sewage discharge pipe (19), a liquid discharge pipe (21) is connected to the side of the three-way joint (18), and an H is installed at the liquid discharge port end of the liquid discharge pipe (21)2The device comprises an S detection device (22), wherein a pressure sensor (23) is installed on the upper portion of the tank body (1), and a valve IV (24) is arranged on the fluid input pipe (4).
2. An integrated system using a self cleaning safety separator as claimed in claim 1, wherein: a filter (32) is arranged on a water supply pipe (13) between the water tank (29) and the electric water pump (31), and a liquid level sensor (33) is arranged on the water tank (29).
3. An integrated system using a self-cleaning safety separator as claimed in claim 2, wherein: the valve I (14), the valve II (15), the valve III (16), the valve IV (24), the valve V (30) and the sewage discharge valve (20) are electromagnetic valves or electric control valves, and the control cabinet (27) is respectively in control connection with the valve I (14), the valve II (15), the valve III (16), the valve IV (24), the valve V (30), the sewage discharge valve (20), the electric water pump (31), the liquid level sensor (33) and the wall thickness sensor (26).
4. A method of using an integrated system using a self-cleaning safety separator as claimed in claim 3, comprising the steps of:
separate drilling fluid
A. Closing a valve I (14), a valve II (15), a valve III (16) and a sewage discharge valve (20) on a water supply pipe (13), opening a valve IV (24) on a fluid input pipe (4), allowing fluid to be separated to enter a tank body (1) of the self-cleaning safety separator from the fluid input pipe (4), centrifugally separating by a separation mechanism (5) in the tank body (1), discharging most of gas from an exhaust pipe (3), and allowing the fluid to fall onto a guide plate (6);
B. the residual fluid in the step A continuously falls to the lower part of the tank body (1) along the guide plates (6) which are arranged in a staggered mode until the fluid falls into the tank body (1) from the last guide plate (6), the fluid is filled in a settling pipeline (17) for settling separation, the separated gas is continuously discharged from the exhaust pipe (3), the obtained fluid without gas overflows from a liquid discharge port, and finally the semi-fluid which is settled near the sewage discharge port is discharged from the sewage discharge port;
C. when an audible and visual alarm (28) connected with the control cabinet (27) gives an alarm, if the H2S prompting detection device (22) detects H2S gas, a valve IV (24) on the fluid input pipe (4) is closed and the drilling fluid is prevented from being discharged, and a field worker is prompted to carry out emergency treatment; if the pressure sensor (23) is prompted to overload, the pressure is relieved in time or the fluid input rate is slowed down;
self-cleaning safety separator
D. After the self-cleaning safety separator finishes the separation operation of drilling fluid, a sewage discharge valve (20) is opened until the drilling fluid in the tank body (1) and in a liquid discharge pipe (21) automatically flows out from a sewage discharge outlet, an electric water pump (31), a valve I (14), a valve II (15) and a valve V (30) are opened after 8-15min, and a high-pressure nozzle I (8) connected with clean water is used for cleaning a separation mechanism (5) in the tank body (1), a pipe orifice of a fluid input pipe (4) and the upper part of the tank body (1); the high-pressure nozzle II (10) cleans the guide plate (6) in the tank body (1) and the column body for fixing the guide plate (6);
E. after 1-2min, closing the valve I (14) and the valve II (15), opening the valve III (16), cleaning a sedimentation tank and a sedimentation pipeline (17) in the tank body (1) by the annular high-pressure nozzle (12), closing the electric water pump (31), the valve III (16) and the valve V (30) when the liquid level of the water tank (29) reaches a preset lower limit value, and closing the sewage discharge valve (20) after 1-2 min.
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| CN202110293404.4A CN113058293B (en) | 2021-03-19 | 2021-03-19 | Self-cleaning safety type separator, separation and cleaning integrated system using separator and use method of system |
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