CN113522838B - Oil well cleaner and oil well cleaning method - Google Patents
Oil well cleaner and oil well cleaning method Download PDFInfo
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- CN113522838B CN113522838B CN202010277611.6A CN202010277611A CN113522838B CN 113522838 B CN113522838 B CN 113522838B CN 202010277611 A CN202010277611 A CN 202010277611A CN 113522838 B CN113522838 B CN 113522838B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/14—Removing waste, e.g. labels, from cleaning liquid; Regenerating cleaning liquids
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- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention relates to an oil well cleaner and an oil well cleaning method, the oil well cleaner comprises a liquid collecting barrel, a spray gun and a liquid collecting disc, wherein the liquid collecting disc is arranged on a sleeve, cleaned mixed waste liquid flows into the liquid collecting disc through an opening at the top of the liquid collecting disc, the liquid collecting barrel is positioned below the liquid collecting disc, a liquid conveying hole is formed in the bottom of the liquid collecting disc, the interior of the liquid collecting disc is communicated with the interior of the liquid collecting barrel through the liquid conveying hole, the spray gun is communicated with the interior of the liquid collecting barrel through a spray gun connecting pipe, and a nozzle of the spray gun can be connected with a surface bushing quartering connector on a sleeve gate, so that the mixed waste liquid flows back into the sleeve through the liquid collecting barrel, the spray gun connecting pipe, the spray gun, the surface bushing quartering connector and the sleeve gate in sequence. The invention solves the technical problem of difficult cleaning of oil leakage at the wellhead.
Description
Technical Field
The invention relates to the field of oil extraction engineering, in particular to an oil well cleaner and an oil well cleaning method, which can clean a wellhead of an oil well and recover waste liquid.
Background
At present, most of field oil in China adopts a conventional pumping unit to recover oil, and when the pumping is carried out through a pumping rod, the large-area oil leakage of the well mouth of an oil well can be always caused due to various external reasons.
At present, a cleaning method commonly used on site is that workers wipe an oil leakage position by using a cleaning agent and cotton yarns to clean oil, and the method is heavy in workload, and sometimes two workers often spend a whole day or even longer to maintain cleanness after oil leakage of one oil well.
Aiming at the problem of difficulty in cleaning oil leakage at a wellhead in the prior art, an effective solution is not provided at present.
Therefore, the inventor provides an oil well cleaner and an oil well cleaning method by virtue of experience and practice of related industries for many years, so as to overcome the defects in the prior art.
Disclosure of Invention
The invention aims to provide an oil well cleaner and an oil well cleaning method, which have the advantages of simple structure and simplicity and convenience in operation, not only greatly improve the cleaning capacity of oil stains on a well mouth, reduce the workload of workers and effectively improve the working efficiency, but also ensure the health of the workers and improve the working safety because the workers do not directly contact chemical drugs in the oil stain cleaning process.
Another object of the present invention is to provide an oil well cleaning device and an oil well cleaning method, which can recover and recycle the waste liquid mixed with the cleaned cleaning liquid and the oil contamination, thereby not only reducing the cleaning cost, but also preventing the cleaning liquid and the oil contamination from polluting the external environment.
The purpose of the invention can be realized by adopting the following technical scheme:
the invention provides an oil well cleaner which is arranged above a well head and is characterized by comprising a liquid collecting barrel filled with cleaning liquid, a spray gun for spraying the cleaning liquid to an oil running position to clean oil stain and a liquid collecting tray for recovering the mixed waste liquid of the cleaning liquid and the oil stain after cleaning, wherein:
the liquid collecting disc is arranged on the sleeve, an opening is formed in the top of the liquid collecting disc, the cleaned mixed waste liquid flows into the liquid collecting disc through the opening of the liquid collecting disc, the liquid collecting barrel is located below the liquid collecting disc, the bottom of the liquid collecting disc is connected with the top of the liquid collecting barrel, a liquid conveying hole is formed in the bottom of the liquid collecting disc, the inside of the liquid collecting disc is communicated with the inside of the liquid collecting barrel through the liquid conveying hole, the spray gun is communicated with the inside of the liquid collecting barrel through a spray gun connecting pipe, and a nozzle of the spray gun can be connected with a surface bushing quartering connector on a sleeve gate, so that the mixed waste liquid flows back into the sleeve through the liquid collecting disc, the liquid collecting barrel, the spray gun connecting pipe, the spray gun, the surface bushing quartering connector and the sleeve gate in sequence.
In a preferred embodiment of the present invention, the oil well cleaner further includes an air pump, an air exhaust pipeline, a flow guide housing, a liquid inlet pipe, and a liquid outlet pipe, wherein a flow guide cavity is formed inside the flow guide housing, an air exhaust end of the air pump is communicated with one end of the air exhaust pipeline, the other end of the air exhaust pipeline is communicated with the flow guide cavity, one end of the liquid inlet pipe is communicated with the inside of the liquid collection barrel, the other end of the liquid inlet pipe is communicated with the flow guide cavity, one end of the liquid outlet pipe is connected to the spray gun connection pipe, and the other end of the liquid outlet pipe is communicated with the flow guide cavity.
In a preferred embodiment of the present invention, the liquid outlet pipe is connected to the top of the diversion casing, and the liquid inlet pipe is connected to the bottom of the diversion casing.
In a preferred embodiment of the present invention, an air extracting valve and an air extracting nozzle are disposed between the air extracting pipeline and the diversion housing, one end of the air extracting valve is connected to the air extracting pipeline, the other end of the air extracting valve is connected to one end of the air extracting nozzle, the other end of the air extracting nozzle extends into the diversion cavity, and the air extracting nozzle located in the diversion cavity is inclined toward the liquid outlet pipe.
In a preferred embodiment of the present invention, a screen is disposed on the liquid inlet pipe located in the flow guide cavity.
In a preferred embodiment of the present invention, a ball valve conducting in one direction to the diversion cavity is disposed inside the liquid inlet pipe located in the diversion cavity.
In a preferred embodiment of the present invention, the ball valve includes a valve seat and a valve ball, the valve seat is an inverted conical cylindrical structure, a through hole is formed at the bottom of the valve seat, the top of the valve seat is connected to the inner wall of the liquid inlet pipe, the valve ball is placed in the valve seat, and the outer wall of the valve ball abuts against the inner wall of the valve seat.
In a preferred embodiment of the present invention, the diameter of the valve ball is larger than the diameter of the through hole, and the diameter of the valve ball is smaller than the inner diameter of the liquid inlet pipe.
In a preferred embodiment of the present invention, a liquid outlet valve is disposed between the liquid inlet pipe and the liquid collecting barrel.
In a preferred embodiment of the present invention, a liquid spraying tube is disposed inside the spray gun, both ends of the liquid spraying tube extend out of the spray gun, a liquid inlet is disposed at one end of the liquid spraying tube, the liquid spraying tube is connected to the spray gun connection tube through the liquid inlet, a threaded nozzle is disposed at the other end of the liquid spraying tube, and the liquid spraying tube is in threaded connection with the watch complement center quarter connector through the threaded nozzle.
In a preferred embodiment of the present invention, an atomizer is disposed inside the liquid spraying tube.
In a preferred embodiment of the present invention, the drip pan is a circular ring structure, and the drip pan is fixedly sleeved outside the sleeve.
In a preferred embodiment of the present invention, the drip pan comprises a plurality of drip pan assemblies, each of the drip pan assemblies is provided with a fixing groove, and each of the drip pan assemblies is spliced along a direction in which each of the fixing grooves approaches to form an annular structure;
the number of the liquid collecting barrels is the same as that of the liquid collecting tray assemblies, each liquid collecting barrel is located below the corresponding liquid collecting tray assembly and communicated with the corresponding liquid collecting tray assembly, and the bottom of each liquid collecting barrel is communicated through a guide pipe and connected with the spray gun connecting pipe through the guide pipe.
In a preferred embodiment of the invention, the number of the liquid collecting disc assemblies and the number of the liquid collecting buckets are two, and the cross section of each liquid collecting disc assembly is in a semicircular ring shape.
In a preferred embodiment of the invention, the spray gun is a hand-held spray gun.
In a preferred embodiment of the present invention, the cleaning solution is an oil detergent.
The invention provides an oil well cleaning method, which comprises the following steps:
step S1: installing a liquid collecting disc and a liquid collecting barrel on a sleeve above a well head, and containing cleaning liquid in the liquid collecting barrel;
step S2: lifting the cleaning liquid in the liquid receiving barrel into a spray gun, and spraying the cleaning liquid to a position where oil stains are attached on the wellhead through the spray gun;
and step S3: the cleaning liquid cleans the oil stain, and the cleaning liquid and the oil stain flow downwards into the liquid collecting disc together and enter the liquid collecting barrel through a liquid conveying hole;
and step S4: after cleaning, connecting a nozzle of the spray gun with a surface bushing quartering interface on a casing gate, and lifting the mixed waste liquid of the cleaning liquid and the oil stain in the liquid collecting barrel into the spray gun;
step S5: the mixed waste liquid sequentially passes through the spray gun, the meter bushing quartering connector and the casing gate to enter the casing, and then enters an oil extraction production system.
In a preferred embodiment of the present invention, in both the step S2 and the step S4, the air pump and the air exhaust pipeline are used to exhaust the air from the spray gun and the spray gun connecting pipe to form a negative pressure, so that the cleaning liquid and the mixed waste liquid are lifted to the spray gun through the spray gun connecting pipe.
From the above, the oil well cleaner and the oil well cleaning method of the present invention have the characteristics and advantages that: set up the drip pan on the sleeve pipe of well head top, the below of drip pan is provided with the liquid collecting bucket that is linked together with the drip pan, the spray gun is linked together through spray gun connecting pipe and liquid collecting bucket's inside, splendid attire has the washing liquid in liquid collecting bucket, promote the washing liquid in the liquid collecting bucket to the spray gun and wash the position that has the greasy dirt through the spray gun to adhering to in, easy and simple to handle, not only can guarantee to carry out the abundant clearance to the greasy dirt of well head, improve the cleaning capacity to the greasy dirt, greatly reduced staff's work load, effectively improve work efficiency, and at the clearance greasy dirt in-process staff can not with chemical medicine machine direct contact such as washing liquid, guarantee staff's healthy, improve the security of work. In addition, after the cleaning is finished, the mixed waste liquid of the cleaning liquid and the oil stain directly flows downwards into the liquid collecting disc and flows back to the liquid collecting barrel to be recovered, the recovered mixed waste liquid can flow into the oil production system, the subsequent oil production system can lift the mixed waste liquid to the ground to separate the cleaning liquid from the oil stain, the cleaning liquid can be recycled, the cleaning cost is reduced, the cleaning liquid and the oil stain cannot be directly discharged outwards, and the pollution to the external environment is avoided.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention.
Wherein:
FIG. 1: is a structural schematic diagram of the oil well cleaner.
FIG. 2 is a schematic diagram: is a partial enlarged view of the connection position of the air exhaust valve and the liquid inlet pipe in figure 1.
FIG. 3: an enlarged view of a portion of the spray gun of figure 1.
FIG. 4 is a schematic view of: is a top view of the drip pan in the oil well cleaner of the present invention.
Reference numbers in the present invention:
1. an air pump; 2. An air extraction pipeline;
3. a spray gun; 4. An atomizer;
5. a liquid collecting tray; 501. A transfusion hole;
502. fixing grooves; 6. A liquid receiving barrel;
7. an air extraction valve; 8. A liquid outlet valve;
9. a four-point interface for the center of the watch is complemented; 10. A casing gate;
11. a sleeve; 12. A spray gun connecting pipe;
13. a flow guide pipe; 14. A suction nozzle;
15. a screen mesh; 16. A ball valve;
1601. a valve seat; 1602. A valve ball;
1603. a through hole; 17. A flow guide shell;
1701. a flow guide cavity; 18. A liquid inlet pipe;
19. a liquid outlet pipe; 20. A liquid spraying pipe;
2001. a liquid inlet; 21. A threaded nozzle.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings.
Example one
As shown in fig. 1 to 4, the invention provides an oil well cleaner which is arranged above a wellhead, and the oil well cleaner comprises a liquid receiving barrel 6, a spray gun 3 and a liquid collecting tray 5, wherein the liquid receiving barrel 6 is filled with cleaning liquid, the spray gun 3 is used for spraying the cleaning liquid to an oil running position to clean oil stains, and the liquid collecting tray 5 is used for recovering mixed waste liquid of the cleaned cleaning liquid and the oil stains. Wherein: the liquid collecting disc 5 is fixedly arranged on a sleeve 11 above a well mouth, an opening is formed in the top of the liquid collecting disc 5, cleaned mixed waste liquid flows along the lower portion of the outer wall of the sleeve 11 and flows into the liquid collecting disc 5 through the opening of the liquid collecting disc 5, the liquid collecting barrel 6 is located below the liquid collecting disc 5, the bottom of the liquid collecting disc 5 is connected with the top of the liquid collecting barrel 6, a liquid infusion hole 501 is formed in the bottom of the liquid collecting disc 5, the inside of the liquid collecting disc 5 is communicated with the inside of the liquid collecting barrel 6 through the liquid infusion hole 501, the spray gun 3 is communicated with the inside of the liquid collecting barrel 6 through the spray gun connecting pipe 12, a sleeve gate 10 is arranged on the sleeve above the well mouth, a surface and core four-division connector 9 is arranged on the sleeve gate 10, a nozzle of the spray gun 3 can be connected with the surface and core four-division connector 9, so that the mixed waste liquid in the liquid collecting barrel 6 can flow back into the sleeve 11 through the liquid collecting disc 5, the spray gun connecting pipe 12, the spray gun 3, the surface and the sleeve gate 9 and flow into an oil extraction production system along with the sleeve 11.
According to the invention, the liquid collecting disc 5 is arranged on the sleeve 11 above the well mouth, the liquid collecting barrel 6 communicated with the liquid collecting disc 5 is arranged below the liquid collecting disc 5, the spray gun 3 is communicated with the interior of the liquid collecting barrel 6 through the spray gun connecting pipe 12, the cleaning liquid is filled in the liquid collecting barrel 6, the cleaning liquid in the liquid collecting barrel 6 is lifted into the spray gun 3, and the position attached with oil stains is cleaned through the spray gun 3, so that the operation is simple and convenient, not only can the oil stains at the well mouth be fully cleaned, but also the cleaning capability of the oil stains is improved, the workload of workers is greatly reduced, the working efficiency is effectively improved, and the workers can not directly contact chemical medicines such as the cleaning liquid in the oil stain cleaning process, so that the health of the workers is ensured, and the working safety is improved. In addition, after the greasy dirt is cleaned, the mixed waste liquid of the cleaning liquid and the greasy dirt directly flows downwards into the liquid collecting disc 5 along the sleeve 11 and flows back to the liquid collecting barrel 6 to be recovered, the recovered mixed waste liquid can be input into the sleeve 11 through the spray gun 3 and the surface center-supplementing four-division interface 9, the mixed waste liquid flows into the oil extraction production system along with the sleeve 11, the follow-up oil extraction production system lifts the mixed waste liquid to the ground to separate the cleaning liquid from the greasy dirt, the cleaning liquid can be recycled, the cleaning cost is reduced, the cleaning liquid and the greasy dirt cannot be directly discharged outwards, and pollution to the external environment is avoided.
Further, the spray gun 3 may be, but is not limited to, a hand-held spray gun.
Further, the cleaning solution may be, but is not limited to, an oil cleaning agent.
Further, the drip pan 5 and the drip bucket 6 may be made of, but not limited to, 45 steel.
In an alternative embodiment of the present invention, as shown in fig. 1 and fig. 2, the oil well cleaner further includes an air pump 1, an air exhaust pipeline 2, a diversion housing 17, a liquid inlet pipe 18, and a liquid outlet pipe 19, wherein the diversion housing 17 is a rectangular block structure, a diversion cavity 1701 is formed inside the diversion housing 17, an air exhaust end of the air pump 1 is communicated with one end of the air exhaust pipeline 2, the other end of the air exhaust pipeline 2 is communicated with the diversion cavity 1701, one end of the liquid inlet pipe 18 is communicated with the interior of the liquid receiving barrel 6, the other end of the liquid inlet pipe 18 is communicated with the diversion cavity 1701, one end of the liquid outlet pipe 19 is connected with the spray gun connecting pipe 12, and the other end of the liquid outlet pipe 19 is communicated with the diversion cavity 1701. The air extracting pump 1, the liquid collecting barrel 6 and the spray gun 3 are communicated through the guide cavity 1701 in the guide shell 17, negative pressure is formed in the guide cavity 1701, the spray gun connecting pipe 12 and the spray gun 3 through air extraction of the air extracting pump 1, and cleaning liquid and mixed waste liquid in the liquid collecting barrel 6 can enter the spray gun 3 under the action of pressure difference, so that the cleaning liquid and the mixed waste liquid are lifted.
Further, as shown in fig. 1 and 2, the liquid outlet pipe 19 is connected to the top of the fluid guide housing 17, and the liquid inlet pipe 18 is connected to the bottom of the fluid guide housing 17. An air extracting valve 7 and an air extracting nozzle 14 are arranged between the air extracting pipeline 2 and the flow guide shell 17, one end of the air extracting valve 7 is connected with the air extracting pipeline 2, the other end of the air extracting valve 7 is connected with one end of the air extracting nozzle 14, the other end of the air extracting nozzle 14 extends into the flow guide cavity 1701, and the air extracting nozzle 14 located in the flow guide cavity 1701 inclines towards the liquid outlet pipe 19. Thereby ensuring that the gas in the spray gun connecting pipe 12 and the spray gun 3 is pumped completely and ensuring the lifting capacity of the cleaning liquid and the mixed waste liquid.
Further, as shown in fig. 2, a screen 15 is disposed on the liquid inlet pipe 18 located in the diversion cavity 1701. Solid impurities in the cleaning liquid and the mixed waste liquid can be filtered through the screen 15, and the solid impurities are prevented from blocking the spray gun 3.
As shown in fig. 2, a ball valve 16 that is one-way communicated with the guide chamber 1701 is provided in the liquid inlet pipe 18 located in the guide chamber 1701. The cleaning liquid and the mixed waste liquid are prevented from flowing backward by the ball valve 16.
Specifically, as shown in fig. 2, the ball valve 16 includes a valve seat 1601 and a valve ball 1602, the valve seat 1601 is an inverted cone-shaped tubular structure, a through hole 1603 communicating the upper side and the lower side of the valve seat 1601 is opened at the bottom of the valve seat 1601, the top of the valve seat 1601 is connected with the inner wall of the liquid inlet pipe 18, the valve ball 1602 is placed in the valve seat 1601, and the outer wall of the valve ball 1602 abuts against the inner wall of the valve seat 1601. The diameter of the ball 1602 is larger than the diameter of the through-hole 1603 and the diameter of the ball 1602 is smaller than the inner diameter of the liquid inlet pipe 18.
In an alternative embodiment of the present invention, as shown in fig. 1, a liquid outlet valve 8 is arranged between the liquid inlet pipe 18 and the liquid collecting barrel 6. Can control from receiving the washing liquid and the mixed waste liquid of liquid bucket 6 transport to spray gun 3 in through play liquid valve 8, according to the actual operation condition, adjust the output quantity of washing liquid and mixed waste liquid.
In an alternative embodiment of the present invention, as shown in fig. 1 and 3, a liquid spray pipe 20 is disposed inside the spray gun 3, both ends of the liquid spray pipe 20 extend out of the spray gun 3, a liquid inlet 2001 is disposed at one end of the liquid spray pipe 20, the liquid spray pipe 20 is connected to the spray gun connecting pipe 12 through the liquid inlet 2001, a threaded nozzle 21 is disposed at the other end of the liquid spray pipe 20, an external thread is disposed on an outer wall of the threaded nozzle 21, and the liquid spray pipe 20 is in threaded connection with the watch complement center quarter-connector 9 through the threaded nozzle 21.
Further, an atomizer 4 is provided inside the liquid ejecting tube 20. The cleaning liquid is atomized by the atomizer 4 and then is sprayed outwards, so that the spraying uniformity and coverage of the cleaning liquid are improved, and the cleaning effect on oil stains is improved.
In an optional embodiment of the present invention, as shown in fig. 1 and 4, the cross section of the liquid collecting tray 5 is a circular ring structure, and the liquid collecting tray 5 is fixedly sleeved outside the sleeve 11, so that the returned mixed waste liquid is ensured to completely enter the liquid collecting tray 5, and the environmental pollution is avoided.
Specifically, the drip pan 5 comprises a plurality of drip pan assemblies, each drip pan assembly is provided with a fixing groove 502, and each drip pan assembly is spliced along the approaching direction of each fixing groove 502 to form a circular ring-shaped structure; the number of the liquid receiving barrels 6 is the same as that of the liquid collecting disc assemblies, each liquid receiving barrel 6 is positioned below the corresponding liquid collecting disc assembly and communicated with the corresponding liquid collecting disc assembly, and the bottom of each liquid receiving barrel 6 is communicated through a flow guide pipe 13 and is connected with a spray gun connecting pipe 12 through the flow guide pipe 13. The installation and the disassembly of the liquid collecting disc 5 and the liquid collecting barrel 6 are convenient.
Specifically, the number of the liquid collecting tray assembly and the liquid collecting barrel 6 is two, and the cross section of the liquid collecting tray assembly is in a semicircular shape.
Further, the lance connecting pipe 12, the air exhaust duct 2 and the draft tube 13 may be made of, but not limited to, synthetic resin materials.
The oil well cleaner has the characteristics and advantages that:
1. this oil well purger is easy and simple to handle, not only can guarantee to carry out the clearance fully to the greasy dirt of well head, improves the cleaning ability to the greasy dirt, greatly reduced staff's work load, effectively improve work efficiency, moreover in clearance greasy dirt in-process staff can not with chemical medicine machine direct contact such as washing liquid, guarantee that staff's is healthy, improve the security of work.
2. This oil well cleaner can input the mixed waste liquid of retrieving to sleeve pipe 11 in through spray gun 3 and table bushing quartering interface 9, and mixed waste liquid flows into to the oil recovery production system along with sleeve pipe 11, and follow-up accessible oil recovery production system promotes the mixed waste liquid to ground after with the separation of washing liquid and greasy dirt, but washing liquid recycle, has not only reduced the cleaning cost, can not directly externally discharge washing liquid and greasy dirt moreover, avoids causing the pollution to external environment.
3. This oil well cleaner plays the lifting action to washing liquid and mixed waste liquid through aspiration pump 1, need not the staff and cleans the greasy dirt of well head through external force, reduces staff's intensity of labour, improves work efficiency.
Example two
The invention provides an oil well cleaning method, which comprises the following steps:
step S1: fixedly installing a liquid collecting disc 5 and a liquid receiving barrel 6 on a sleeve 11 above a well mouth, and containing cleaning liquid in the liquid receiving barrel 6;
step S2: lifting the cleaning liquid in the liquid collecting barrel 6 to the spray gun 3, and spraying the cleaning liquid to the position of the wellhead with oil stains by the spray gun 3;
and step S3: cleaning liquid cleans oil stains, and the cleaning liquid and the oil stains flow into the liquid collecting disc 5 together along the sleeve 11 and enter the liquid collecting barrel 6 through the infusion hole 501;
and step S4: after cleaning, connecting a nozzle of the spray gun 3 with a surface bushing quartering connector 9 on a casing gate 10, and lifting the mixed waste liquid of the cleaning liquid and the oil stain in the liquid collecting barrel 6 into the spray gun 3;
step S5: the mixed waste liquid sequentially passes through the spray gun 3, the surface bushing quartering connector 9 and the casing gate 10 to enter the casing 11, and then enters the oil production system.
Step S6: and cleaning and recovering the oil stain at the oil leakage position.
In an alternative embodiment of the present invention, the spray gun 3 and the spray gun connection pipe 12 are both pumped by the air pump 1 and the air pumping pipe 2 to form a negative pressure in step S2 and step S4, so that the cleaning solution and the mixed waste liquid are lifted into the spray gun 3 through the spray gun connection pipe 12.
The oil well cleaning method of the invention has the characteristics and advantages that:
according to the oil well cleaning method, the cleaning liquid in the liquid receiving barrel 6 is lifted to the spray gun 3, the position attached with the oil stain is cleaned through the spray gun 3, the operation is simple and convenient, the oil stain at a well mouth can be fully cleaned, the cleaning capacity of the oil stain is improved, a worker cannot be in direct contact with chemical medicines such as the cleaning liquid in the oil stain cleaning process, the health of the worker is guaranteed, and the working safety is improved. After finishing the greasy dirt washing, the mixed waste liquid of washing liquid and greasy dirt directly flows into in collecting tray 5, and retrieve in returning to receiving liquid bucket 6, can pass through spray gun 3 and table bushing quartering mouth 9 with the mixed waste liquid of retrieving and input to sleeve pipe 11, the mixed waste liquid flows into to the oil recovery production system along with sleeve pipe 11 in, follow-up accessible oil recovery production system promotes the mixed waste liquid to ground after the separation with washing liquid and greasy dirt, but washing liquid cyclic use, not only the cleaning cost has been reduced, and can not directly externally discharge washing liquid and greasy dirt, avoid causing the pollution to external environment. In addition, the air pump 1 plays a role in lifting cleaning liquid and mixed waste liquid, workers are not required to clean oil stains on a well mouth through external force, labor intensity of the workers is reduced, and working efficiency is improved.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the invention should fall within the protection scope of the invention.
Claims (14)
1. An oil well cleaner, which is arranged above a wellhead, is characterized in that the oil well cleaner comprises a liquid collecting barrel (6) containing cleaning liquid, a spray gun (3) for spraying the cleaning liquid at an oil running position to clean oil stains, and a liquid collecting tray (5) for recovering the cleaning liquid and mixed waste liquid of the oil stains after cleaning, wherein:
the liquid collecting disc (5) is arranged on a sleeve (11), an opening is formed in the top of the liquid collecting disc (5), the cleaned mixed waste liquid flows into the liquid collecting disc (5) through the opening of the liquid collecting disc (5), the liquid collecting barrel (6) is located below the liquid collecting disc (5), the bottom of the liquid collecting disc (5) is connected with the top of the liquid collecting barrel (6), an infusion hole (501) is formed in the bottom of the liquid collecting disc (5), the interior of the liquid collecting disc (5) is communicated with the interior of the liquid collecting barrel (6) through the infusion hole (501), the spray gun (3) is communicated with the interior of the liquid collecting barrel (6) through a spray gun connecting pipe (12), and a nozzle of the spray gun (3) can be connected with a meter center-supplementing four-division connector (9) on a sleeve gate (10) so that the mixed waste liquid flows back into the sleeve (11) through the liquid collecting disc (5), the liquid collecting barrel (6), the spray gun connecting pipe (12), the spray gun (3), the meter center-supplementing four-division connector (9) and the sleeve gate (10) in sequence;
the oil well cleaner further comprises an air suction pump (1), an air suction pipeline (2), a flow guide shell (17), a liquid inlet pipe (18) and a liquid outlet pipe (19), wherein a flow guide cavity (1701) is formed inside the flow guide shell (17), the air suction end of the air suction pump (1) is communicated with one end of the air suction pipeline (2), the other end of the air suction pipeline (2) is communicated with the flow guide cavity (1701), one end of the liquid inlet pipe (18) is communicated with the inside of the liquid receiving barrel (6), the other end of the liquid inlet pipe (18) is communicated with the flow guide cavity (1701), one end of the liquid outlet pipe (19) is connected with the spray gun connecting pipe (12), and the other end of the liquid outlet pipe (19) is communicated with the flow guide cavity (1701); the liquid outlet pipe (19) is connected with the top of the flow guide shell (17), and the liquid inlet pipe (18) is connected with the bottom of the flow guide shell (17);
a screen (15) is arranged on the liquid inlet pipe (18) positioned in the flow guide cavity (1701);
and a ball valve (16) which is communicated in one direction to the direction of the flow guide cavity (1701) is arranged in the liquid inlet pipe (18) positioned in the flow guide cavity (1701).
2. An oil well cleaner as claimed in claim 1, characterized in that an air suction valve (7) and an air suction nozzle (14) are arranged between the air suction pipeline (2) and the diversion casing (17), one end of the air suction valve (7) is connected with the air suction pipeline (2), the other end of the air suction valve (7) is connected with one end of the air suction nozzle (14), the other end of the air suction nozzle (14) extends into the diversion cavity (1701), and the air suction nozzle (14) in the diversion cavity (1701) is inclined towards the outlet pipe (19).
3. The oil well cleaner as claimed in claim 2, characterized in that the ball valve (16) comprises a valve seat (1601) and a valve ball (1602), the valve seat (1601) is a reverse-tapered cylindrical structure, a through hole (1603) is opened at the bottom of the valve seat (1601), the top of the valve seat (1601) is connected with the inner wall of the liquid inlet pipe (18), the valve ball (1602) is placed in the valve seat (1601), and the outer wall of the valve ball (1602) abuts against the inner wall of the valve seat (1601).
4. A well cleaner as claimed in claim 3, characterized in that the diameter of the valve ball (1602) is larger than the diameter of the through-hole (1603) and the diameter of the valve ball (1602) is smaller than the inner diameter of the liquid inlet pipe (18).
5. An oil well cleaning device as claimed in claim 1, characterized in that a liquid outlet valve (8) is arranged between said liquid inlet pipe (18) and said liquid collecting barrel (6).
6. The oil well cleaner as set forth in claim 1, characterized in that a liquid jet pipe (20) is provided inside the spray gun (3), both ends of the liquid jet pipe (20) are protruded to the outside of the spray gun (3), one end of the liquid jet pipe (20) is provided with a liquid inlet (2001), the liquid jet pipe (20) is connected with the spray gun connection pipe (12) through the liquid inlet (2001), the other end of the liquid jet pipe (20) is provided with a screw nozzle (21), and the liquid jet pipe (20) is screw-connected with the watch complement quarter connector (9) through the screw nozzle (21).
7. A well cleaner according to claim 6, characterized in that the spray pipe (20) is internally provided with an atomizer (4).
8. A well cleaner according to claim 1, wherein the drip pan (5) is of an annular configuration, and the drip pan (5) is fixedly mounted on the outside of the casing (11).
9. An oil well cleaner as claimed in claim 8, wherein said drip pan (5) comprises a plurality of drip pan assemblies, each of which is provided with a fixing groove (502), and said drip pan assemblies are assembled in a direction in which said fixing grooves (502) are adjacent to each other to form a ring-shaped structure;
the number of the liquid receiving barrels (6) is the same as that of the liquid collecting disc assemblies, each liquid receiving barrel (6) is located below the corresponding liquid collecting disc assembly and communicated with the corresponding liquid collecting disc assembly, and the bottom of each liquid receiving barrel (6) is communicated through a flow guide pipe (13) and connected with the spray gun connecting pipe (12) through the flow guide pipe (13).
10. A well cleaner according to claim 9, wherein the number of the collector assemblies and the collector buckets (6) is two, and the collector assemblies are semi-circular in cross-section.
11. A well cleaner as claimed in claim 1, wherein said spray gun (3) is a hand-held spray gun.
12. An oil well washer according to claim 1, wherein said cleaning fluid is an oil cleaning agent.
13. A method of cleaning an oil well, the method comprising the steps of:
step S1: installing a liquid collecting disc (5) and a liquid collecting barrel (6) on a sleeve (11) above a wellhead, and containing cleaning liquid in the liquid collecting barrel (6);
step S2: lifting the cleaning liquid in the liquid collecting barrel (6) to a spray gun (3), and spraying the cleaning liquid to a position where oil stains are attached to a well mouth through the spray gun (3);
and step S3: the cleaning liquid cleans the oil stains, and the cleaning liquid and the oil stains flow downwards into the liquid collecting disc (5) together and enter the liquid collecting barrel (6) through the liquid conveying hole (501);
and step S4: after cleaning, connecting a nozzle of the spray gun (3) with a surface bushing quartering connector (9) on a casing gate (10), and lifting the mixed waste liquid of the cleaning liquid and the oil stain in the liquid collecting barrel (6) into the spray gun (3);
step S5: the mixed waste liquid sequentially passes through the spray gun (3), the surface bushing quartering connector (9) and the casing gate (10) to enter the casing (11) and then enter an oil extraction production system.
14. A method for cleaning a well according to claim 13, wherein the air suction pump (1) and the air suction pipe (2) are used to suck the spray gun (3) and the spray gun connecting pipe (12) to form a negative pressure in both the step S2 and the step S4, so that the cleaning liquid and the mixed waste liquid are lifted into the spray gun (3) through the spray gun connecting pipe (12).
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| CN202010277611.6A CN113522838B (en) | 2020-04-10 | 2020-04-10 | Oil well cleaner and oil well cleaning method |
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| CN113522838B true CN113522838B (en) | 2022-10-04 |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2258130C1 (en) * | 2004-12-03 | 2005-08-10 | ЗАО "Московский опытный завод буровой техники" МОЗБ | Cavitator for underwater cleaning of clogged solid body surfaces |
| CN104533333A (en) * | 2014-11-18 | 2015-04-22 | 中国石油化工股份有限公司 | Leakage receiving device for pumping unit wellhead |
| CN206215623U (en) * | 2016-11-03 | 2017-06-06 | 中国石油新疆油田分公司（准东采油厂） | A kind of well mouth oil pipe cleaning device |
| CN108620377B (en) * | 2018-04-27 | 2024-03-08 | 河北麟润石油钻采技术有限公司 | Online airtight belt cleaning device of oil well operation |
| CN208450028U (en) * | 2018-06-22 | 2019-02-01 | 大庆丰泰石油机械制造有限公司 | Environment-friendlynegative negative pressure vacuum recovering apparatus |
| CN109403920A (en) * | 2018-11-27 | 2019-03-01 | 中国石油天然气股份有限公司 | A kind of oil field light maintenance operation clean manufacturing integrated conduct method |
| CN209908463U (en) * | 2019-04-29 | 2020-01-07 | 牡丹江天庆石油机械设备有限公司 | Environmental protection returns flowing back and retrieves safe platform |
| CN110145280B (en) * | 2019-05-07 | 2021-03-30 | 濮阳市科特石油工程技术有限公司 | Oil well pipe rod online cleaning and oil stain recovery device and use method thereof |
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