CN114458245B - Adaptation anti-blocking offshore oil and gas well solid medicament adding device - Google Patents
Adaptation anti-blocking offshore oil and gas well solid medicament adding device Download PDFInfo
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- CN114458245B CN114458245B CN202111584681.7A CN202111584681A CN114458245B CN 114458245 B CN114458245 B CN 114458245B CN 202111584681 A CN202111584681 A CN 202111584681A CN 114458245 B CN114458245 B CN 114458245B
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- 239000003814 drug Substances 0.000 title claims abstract description 319
- 239000007787 solid Substances 0.000 title claims abstract description 41
- 230000006978 adaptation Effects 0.000 title claims description 5
- 238000007599 discharging Methods 0.000 claims abstract description 89
- 238000000034 method Methods 0.000 claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000003044 adaptive effect Effects 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 14
- 238000012544 monitoring process Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 118
- 229940079593 drug Drugs 0.000 claims description 45
- 235000019198 oils Nutrition 0.000 claims description 34
- 239000000203 mixture Substances 0.000 claims description 21
- 239000006247 magnetic powder Substances 0.000 claims description 16
- 230000008859 change Effects 0.000 claims description 12
- 238000004062 sedimentation Methods 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 239000013535 sea water Substances 0.000 claims description 6
- 229940126589 solid medicine Drugs 0.000 claims description 6
- 238000012377 drug delivery Methods 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 230000000630 rising effect Effects 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 235000019476 oil-water mixture Nutrition 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 12
- 230000007797 corrosion Effects 0.000 abstract description 10
- 230000002421 anti-septic effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/02—Equipment or details not covered by groups E21B15/00 - E21B40/00 in situ inhibition of corrosion in boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0007—Equipment or details not covered by groups E21B15/00 - E21B40/00 for underwater installations
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- Life Sciences & Earth Sciences (AREA)
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- Mining & Mineral Resources (AREA)
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- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Accessories For Mixers (AREA)
Abstract
The invention provides an adaptive anti-blocking offshore oil and gas well solid medicament adding device, wherein a medicament discharging device is arranged on a frame, a medicament mixing device is arranged below the medicament discharging device, an outlet of the medicament discharging device is communicated with an inlet of the medicament mixing device, one end of a hose mechanism stretches into the medicament mixing device, the other end of the hose mechanism stretches into an annulus of an annular empty well, an electric control system is connected with a monitoring system, various parameter values in the medicament discharging process are fed back to the monitoring system through the electric control system, and the medicament discharging device works. Through the cooperation of mechanical part and electrical system, realize the automated control of whole medicament adding process, compensatied the blank that solid medicament added, improved mixing efficiency, reduced the inhomogeneous and the jam condition of mixing, improved the mechanical degree of oil gas well corrosion control.
Description
Technical Field
The invention relates to the technical field of oil extraction of oil wells, in particular to an adaptive anti-blocking offshore oil and gas well solid medicament adding device.
Background
The oil gas well casing is in a non-protection state for a long time, the problems of corrosion deformation, corrosion damage and the like are easy to occur, the problems of high maintenance difficulty, high maintenance cost and the like exist after the casing is corroded, and the oil gas well can be scrapped when serious, so that the oil gas well casing corrosion protection treatment is the key point and the difficult point in the oil gas well corrosion treatment.
At present, a part of solid corrosion inhibitors are used as main anti-corrosion agents, but the solid corrosion inhibitors are put into the annular space, firstly, only a pipe valve of a put-in channel is added into a path through a sleeve four-way, and at present, a solid agent adding device for the annular space is not available at sea; in addition, the inner diameter of the sleeve four-way is only 2 '-2-1/16', and the stability of the medicament adding and supplying amount is poor, so that the adding channel is easy to be blocked when the solid medicament is added; finally, solid dosage from the dosage device into the annulus is difficult to fall evenly into the annulus and often accumulates at a point. Therefore, a solid medicament adding device which is adaptive to prevent the offshore oil and gas well from being blocked needs to be developed, so that the traditional process mode of corrosion prevention liquid pouring is changed, and a new process method is provided for casing corrosion protection and treatment.
Disclosure of Invention
The invention overcomes the defects in the prior art, the putting channel is single, no solid medicament adding device for an annulus exists at sea at present, the four-way inner diameter of the sleeve is small, the medicament adding and supplying stability is poor, the solid medicament entering the annulus is difficult to uniformly fall into the annulus, the invention provides the adaptive anti-blocking offshore oil and gas well solid medicament adding device, the automatic control of the whole medicament adding process is realized through the matching use of the mechanical part and the electric control system, the blank of solid medicament adding is made up, the mixing efficiency is improved, the mixing non-uniformity and the blocking condition are reduced, and the mechanical degree of oil and gas well corrosion treatment is improved.
The aim of the invention is achieved by the following technical scheme.
The utility model provides an adaptation anti-clogging offshore oil gas well solid medicament adding device, includes frame, row medicine device, mixed medicine device, hose mechanism and electrical system, row medicine device installs in the frame, mixed medicine device sets up row medicine device's below, row medicine device's export with mixed medicine device's entry is linked together, hose mechanism's one end stretches into in the mixed medicine device, hose mechanism's the other end stretches into in the annular space of annular empty well, electrical system links to each other with monitored control system, feeds back all kinds of parameter values in the row medicine in-process to monitored control system through electrical system, and the work of row medicine device;
the medicine discharging device comprises a medicine box, a medicine discharging device shell, a medicine feeding component and a driving component, wherein the outlet end of the medicine box is connected with the inlet end of the medicine discharging device shell, the medicine box and the medicine discharging device shell are arranged on the frame, the outlet end of the medicine discharging device shell is communicated with the inlet of the medicine mixing device, the medicine feeding component is arranged in the medicine discharging device shell, the driving component is connected with the medicine feeding component, and the driving component is used for driving the medicine feeding component to slowly and uniformly feed solid medicine in the medicine box into the medicine discharging device shell;
the medicine mixing device comprises a medicine inlet funnel, a medicine inlet flange, a medicine mixing pipe and a laminar flow water pipe, wherein the inlet end of the medicine inlet funnel is communicated with the outlet end of the shell of the medicine discharging device, the outlet end of the medicine inlet funnel is communicated with a medicine inlet formed in the medicine mixing pipe through the medicine inlet flange, an oil stain port and a hose inlet are formed in the side wall of the medicine mixing pipe on one side opposite to the medicine inlet, the medicine mixing pipe flange is mounted at the head end of the medicine mixing pipe, the tail end of the medicine mixing pipe is communicated with the water outlet of the laminar flow water pipe, the water inlet of the laminar flow water pipe is connected with the water outlet of the laminar flow pump, and the hose mechanism extends into the medicine mixing pipe from the position of the medicine mixing pipe flange and finally extends into the annular space of the annular space through a water suction pump at the hose inlet.
The medicine delivery assembly comprises an ABS medicine delivery wheel, a rigid connector and a medicine discharge wheel shaft, wherein the ABS medicine delivery wheel is fixed on the medicine discharge wheel shaft through the rigid connector, and the ABS medicine delivery wheels are arranged according to an Archimedes spiral line.
The driving assembly comprises a torque sensor, a magnetic powder brake, a speed sensor, a drug discharging device driving motor, a coupler and a bearing seat, one end of a drug discharging wheel shaft penetrates through the side wall of the drug discharging device shell and is connected with the torque sensor through the bearing seat, the torque sensor sequentially passes through the coupler, the magnetic powder brake and the speed sensor and is connected with an output shaft of the drug discharging device driving motor, the speed sensor is used for determining the rotating speed of the drug discharging wheel shaft and transmitting a speed signal to the controller, and the controller determines the required water discharge of the laminar flow pump through function operation and performs water discharge work.
An inspection window is formed in the side wall of the medicine box and used for observing the amount of solid medicines in the medicine box so as to prevent the medicine delivery assembly from being blocked.
The ultrasonic density sensor is arranged on one side of the inner wall of the medicine mixing pipe, which is close to the oil pollution port, and is used for detecting the density condition of the mixture in the medicine mixing pipe so as to judge the mixing degree of the mixture, and transmitting a mixing degree signal to the controller, when the mixing degree of the mixture is poorer, more sedimentation, large local density difference and high non-uniformity, the controller can adjust the water supply flow of the laminar flow pump downwards so as to improve the mixing uniformity of the mixture, reduce sedimentation and concentration points, the contact potential sensor is arranged at the flange of the medicine mixing pipe, and when the resistance value of the contact potential at the flange of the medicine mixing pipe changes due to the rising of the water level, the controller receives the change signal and displays the change signal on the electronic screen in real time, thereby facilitating the workers to switch the extraction of the water flow.
The water inlet of the laminar flow pump is connected with a water supply system, and the flow speed of the laminar flow pump is determined through a speed sensor and an ultrasonic density sensor in the electric control device.
The electric control device comprises a speed sensor, a contact potential sensor, a torque sensor, an ultrasonic wave density sensor, a controller, a magnetic powder brake and a laminar flow pump.
The speed sensor determines the initial water flow rate of the laminar flow pump through the rotation speed of the drug discharging device driving motor.
The torque sensor is used for monitoring the torque change of the drug discharging wheel shaft, when the torque signal of the drug discharging wheel shaft exceeds a threshold value, the controller gives an alarm to remind operators of abnormal drug discharging conditions, the magnetic powder brake receives the signal and then carries out a braking instruction, and the power between the drug discharging device driving motor and the drug discharging wheel shaft is cut off so as to prevent damage.
The hose mechanism adopts a 3/8 'hose, the 3/8' hose stretches into the annulus of the annular cavity well from the inlet of the hose through a water suction pump, the running depth of the 3/8 'hose depends on the resistance of oil stain and seawater in the annulus, the maximum value of the 3/8' hose in-depth is 50m, in the process of adding medicine, the 3/8 'hose is lifted to a position with a fixed height from the horizontal axis of the medicine mixing pipe, the lifting degree on the 3/8' hose is 7m depending on the suction stroke of the suction pump.
In the installation, pull down the manometer on the sleeve pipe cross flange, mix the medicine pipe flange and meet through bolt and sleeve pipe cross flange, and then realize sleeve pipe cross and mix the purpose of medicine pipe flange joint, through mixing medicine pipe and sleeve pipe cross with the purpose in carrying the annular space of annular space well, and then realize antiseptic medicine filling operation at any time.
If the sleeve four-way flange cannot be opened, the ball valve part on the sleeve four-way is directly disassembled, the medicine mixing pipe flange is connected with the flange at the annular space joint of the sleeve four-way, and then the annular space of the annular space well is directly connected.
The application method of the solid medicament adding device for the adaptive anti-blocking offshore oil and gas well comprises the following steps:
step 1: the solid medicament adding device is arranged on the pipeline four-way flange through the medicament mixing pipeline flange to form a medicament adding system, solid medicaments are added into the medicament box, the condition of the system and the wearing condition of each part are checked, the integrity of the electric control device is checked, and the operation is prepared;
step 2, after the medicament adding system is started, a 3/8 'hose enters the medicament mixing pipe from the inlet of the hose and stretches into the annulus of the annular well through the water suction pump, the descending depth depends on the resistance of oil stain in the annulus and seawater, the maximum value of the descending depth is 50m, the water supply system is connected with the 3/8' hose firstly, clean water starts to be injected, the oil stain on the pipe wall floats up while the water level rises, the oil-water mixture is discharged from the oil stain port after entering the medicament mixing pipe, and the water supply system is closed while the oil stain port is closed after the oil stain is returned to clean water;
lifting the 3/8 'hose to a fixed height from the horizontal axis of the medicine mixing pipe, lifting the 3/8' hose by the lifting degree, depending on the suction stroke of the suction pump, keeping the 3/8 'hose always in the interior of the hose inlet by the suction pump Cheng Yaowei m commonly used on site, connecting the 3/8' hose with the laminar flow pump, sucking clean water until 7m of water is pumped out, and closing the suction laminar flow pump;
opening a medicine mixing pipe, connecting a laminar flow water pipe and a laminar flow pump with a water supply system, starting medicine adding operation, determining the rotation speed of a medicine discharging wheel shaft by a speed sensor, transmitting the rotation signal to a controller, determining the water discharge required by the laminar flow pump by the controller through function operation, performing water discharging operation, monitoring the torque of the medicine discharging wheel shaft by a torque sensor, transmitting a real-time torque signal to the controller, comparing the signal value with a threshold value by the controller, generating an alarm if the threshold value is exceeded, generating a braking action by a magnetic powder brake at the moment, cutting off power, moving the mixture to one end of the medicine mixing pipe, determining the mixing degree of the mixture by detecting the density condition of the mixture by an ultrasonic density sensor, transmitting the mixing signal to the controller, and when the mixing degree is poor, sedimentation is high, the local density difference is high, and the non-uniformity is high, reducing the water supply flow rate of the laminar flow pump, increasing the mixing uniformity, reducing sedimentation and midpoint, and when the contact potential at the flange of the medicine mixing pipeline is changed by a resistance value, expanding, generating an electronic water level change signal by the controller, generating an electronic water level change signal, switching on the water level, and then, and switching the water level sensor to a water level in the water pump to a water pump through a water pump ring, and a water pump is connected to a water supply system, and a water pump ring, and a water pump is opened when the step is connected to a water pump, and a water pump is opened, and a water pump, and a circulation system, and a water pump is convenient when the step is opened, and a water pump is opened, and a circulation system;
step 3: closing the medicament adding system, cleaning the machine tool, and after closing the ball valve of the medicament adding system, disassembling the medicament mixing connecting flange to clean the inside of the solid medicament adding device, so as to ensure that no medicament remains in the solid medicament adding device.
The beneficial effects of the invention are as follows: through the cooperation of the mechanical part and the electric control system, the automatic control of the whole medicament adding process is realized, the blank of adding solid medicaments is made up, the mixing efficiency is improved, the mixing non-uniformity and the blocking condition are reduced, and the mechanization degree of the oil-gas well corrosion treatment is improved;
by adopting the Archimedes spiral type arrangement method of the drug discharging device and the matching of the electric control, the uniformity of the drug discharging process is realized, the high efficiency of drug mixing is realized by the matching process of the electric control device, and meanwhile, the effectiveness of the anti-corrosion work and the drug applying process is increased by the application of various sensors in the electric control system.
Drawings
FIG. 1 is a general assembly view of the present invention;
FIG. 2 is a schematic diagram of the structure of the present invention;
FIG. 3 is a schematic view of the water circulation structure of the present invention;
FIG. 4 is a schematic view of the structure of the drug delivery device of the present invention;
FIG. 5 is a schematic view of the structure of the mixer of the present invention;
in the figure: 1 is a medicine box, 2 is a frame, 3 is a torque sensor, 4 is a magnetic powder brake, 5 is a speed sensor, 6 is a medicine discharging device driving motor, 7 is a coupling, 8 is a water suction pump, 9 is a 3/8' hose, 10 is a medicine mixing pipe, 11 is a medicine discharging device shell, 12 is a medicine feeding funnel, 13 is a medicine feeding flange, 14 is a laminar flow water pipe, 15 is a laminar flow pump, 16 is a bearing seat, 17 is an oil stain port, 18 is a hose inlet, 19 is a medicine mixing pipeline flange, 20 is an ABS medicine feeding wheel, 21 is a rigid connector, 22 is a medicine discharging wheel shaft, 23 is an ultrasonic density sensor, and 24 is a contact potential sensor.
Other relevant drawings may be made by those of ordinary skill in the art from the above figures without undue burden.
Detailed Description
The technical scheme of the invention is further described by specific examples.
Example 1
The utility model provides an adaptation prevents blockking up marine oil gas well solid medicament interpolation device, including frame 2, drug discharging device, mixing device, hose mechanism and electrical system, drug discharging device installs on frame 2, mixing device sets up in drug discharging device's below, drug discharging device's export is linked together with mixing device's entry, hose mechanism's one end stretches into in the mixing device, hose mechanism's the other end stretches into in the annular space of annular empty well, electrical system links to each other with monitored control system, feed back all kinds of parameter values in the drug discharging process to monitored control system through electrical system, work of drug discharging device side by side;
the medicine discharging device comprises a medicine chest 1, a medicine discharging device shell 11, a medicine feeding component and a driving component, wherein the outlet end of the medicine chest 1 is connected with the inlet end of the medicine discharging device shell 11, the medicine chest 1 and the medicine discharging device shell 11 are both arranged on the frame 2, the outlet end of the medicine discharging device shell 11 is communicated with the inlet of the medicine mixing device, the medicine feeding component is arranged in the medicine discharging device shell 11, the driving component is connected with the medicine feeding component, and the driving component is used for driving the medicine feeding component to slowly and uniformly feed solid medicine in the medicine chest 1 into the medicine discharging device shell 11;
the medicine mixing device comprises a medicine inlet funnel 12, a medicine inlet flange 13, a medicine mixing pipe 10 and a laminar flow water pipe 14, wherein the inlet end of the medicine inlet funnel 12 is communicated with the outlet end of a medicine discharging device shell 11, the outlet end of the medicine inlet funnel 12 is communicated with a medicine inlet formed in the medicine mixing pipe 10 through the medicine inlet flange 13, an oil stain port 17 and a hose inlet 18 are formed in the side wall of the medicine mixing pipe 10 opposite to the medicine inlet, a medicine mixing pipe flange 19 is mounted at the head end of the medicine mixing pipe 10, the tail end of the medicine mixing pipe 10 is communicated with the water outlet of the laminar flow water pipe 14, the water inlet of the laminar flow water pipe 14 is connected with the water outlet of the laminar flow pump 15, a hose mechanism stretches into the medicine mixing pipe 10 from the position of the medicine mixing pipe flange 19, and finally stretches into the annular space of an annular space well after passing through a water suction pump 8 from the hose inlet 18.
Example two
On the basis of the first embodiment, the medicine feeding assembly comprises an ABS medicine feeding wheel 20, a rigid connector 21 and a medicine discharging wheel shaft 22, wherein the ABS medicine feeding wheel 20 is fixed on the medicine discharging wheel shaft 22 through the rigid connector 21, and the ABS medicine feeding wheels 20 are arranged according to an archimedes spiral line.
The driving assembly comprises a torque sensor 3, a magnetic powder brake 4, a speed sensor 5, a drug discharging device driving motor 6, a coupler 7 and a bearing seat 16, one end of a drug discharging wheel shaft 22 penetrates through the side wall of a drug discharging device shell 11 and is connected with the torque sensor 3 through the bearing seat 16, the torque sensor 3 is connected with an output shaft of the drug discharging device driving motor 6 through the coupler 7, the magnetic powder brake 4 and the speed sensor 5 in sequence, the speed sensor 5 is used for determining the rotation speed of the drug discharging wheel shaft 22 and transmitting a speed signal to the controller, and the controller determines the water discharge required by the laminar flow pump through function operation to perform water discharge work.
An inspection window is arranged on the side wall of the medicine box 1 and is used for observing the amount of solid medicine in the medicine box 1 so as to prevent the medicine delivery assembly from being blocked.
Example III
On the basis of the second embodiment, an ultrasonic density sensor 23 is installed on one side of the inner wall of the medicine mixing tube 10, which is close to the oil stain port 17, the ultrasonic density sensor 23 is used for detecting the density condition of the mixture in the medicine mixing tube 10 to judge the mixing degree of the mixture and transmitting a mixing degree signal to a controller, when the mixing degree of the mixture is worse, more sedimentation, large local density difference and high non-uniformity, the controller can adjust the water supply flow of the laminar flow pump 15 downwards so as to improve the mixing uniformity of the mixture, reduce sedimentation and concentration points, a contact potential sensor 24 is installed at the medicine mixing tube flange 19, and when the contact potential at the medicine mixing tube flange 19 changes due to the resistance value caused by the rising of the water level, the controller receives the change signal and displays the change signal on an electronic screen in real time, thereby facilitating the staff to switch the extraction of water flow.
The water inlet of the laminar flow pump 15 is connected with a water supply system, and the flow rate of the laminar flow pump 15 is determined by a speed sensor 5 and an ultrasonic density sensor 23 in the electric control device.
Example IV
On the basis of the third embodiment, the electric control device includes a speed sensor 5, a contact potential sensor 24, a torque sensor 3, an ultrasonic density sensor 23, a controller, a magnetic powder brake 4, and a laminar flow pump 15.
The speed sensor 5 determines the initial water flow rate of the laminar flow pump 15 by the rotational speed of the ejector drive motor 6.
The torque sensor 3 is used for monitoring the torque change of the drug discharging wheel axle 22, when the torque signal of the drug discharging wheel axle 22 exceeds a threshold value, the controller gives an alarm to remind operators of abnormal drug discharging, the magnetic powder brake 4 receives the signal and then carries out a braking instruction, and the power between the drug discharging device driving motor 6 and the drug discharging wheel axle 22 is cut off so as to prevent damage.
Example five
Based on the fourth embodiment, the hose mechanism adopts a 3/8 'hose 9, the 3/8' hose 9 stretches into the annulus of the annular well from the hose inlet 18 through the water suction pump 8, the running depth of the 3/8 'hose 9 depends on the resistance of the oil dirt and the seawater in the annulus, the maximum value of the 3/8' hose 9 in-depth is 50m, during the dosing process, the 3/8 'hose 9 is lifted to a fixed height from the horizontal axis of the medicine mixing tube 10, and the lifting degree of the 3/8' hose 9 is 7m depending on the suction stroke of the suction pump 8.
In the installation, through dismantling the manometer on the sleeve pipe cross flange, mix medicine pipeline flange 19 and sleeve pipe cross flange through the bolt and meet, and then realize sleeve pipe cross and the purpose of mixing medicine pipeline flange 19 connection, carry the purpose in the annular space of annular space well with the medicament through mixing medicine pipe 10 and sleeve pipe cross, and then realize antiseptic medicine filling operation at any time.
If the sleeve four-way flange cannot be opened, the mixing pipeline flange 19 is connected with the flange at the annular interface of the sleeve four-way through directly disassembling the ball valve part on the sleeve four-way, so that the annular space of the annular space well is directly connected.
When the adaptive anti-blocking offshore oil and gas well solid medicament adding device is used, the method is carried out according to the following steps:
step 1: the solid medicament adding device is arranged on a pipeline four-way flange through a medicament mixing pipeline flange 19 to form a medicament adding system, solid medicaments are added into the medicament box 1, the condition of the system and the wearing condition of each part are checked, the integrity of the electric control device is checked, and the electric control device is ready to work;
step 2, after the medicament adding system is started, a 3/8 'hose 9 enters the medicament mixing pipe 10 from a hose inlet 18 and stretches into the annulus of the annular cavity well through a water suction pump 8, the descending depth depends on the resistance of oil stains in the annulus and seawater, the maximum value of the descending depth is 50m, the water supply system is firstly connected with the 3/8' hose 9, clean water starts to be injected, when the water level rises, oil stains on the pipe wall float, after the oil-water mixture enters the medicament mixing pipe 10, the oil stains are discharged from an oil stain port 17, after the oil stains return to clean water, the water supply system is closed, and meanwhile, the oil stain port 17 is closed;
lifting the 3/8 'hose 9 to a fixed height from the horizontal axis of the medicine mixing tube 10, lifting the 3/8' hose 9 to a certain height, depending on the suction stroke of the suction pump 8, sucking Cheng Yaowei m or so by the suction pump 8 commonly used on site, keeping the 3/8 'hose 9 always inside the hose inlet 18, connecting the 3/8' hose 9 with the laminar flow pump 15, sucking clean water until 7m of water is pumped out, and closing the suction laminar flow pump 15;
the medicine mixing pipe 10 is opened, the laminar flow water pipe 14 and the laminar flow pump 15 are connected with a water supply system, medicine adding operation is started, the speed sensor 5 determines the rotation speed of the medicine discharging wheel shaft 22, the rotation signal is transmitted to the controller, the controller determines the water discharge amount required by the laminar flow pump 15 through function operation, the water discharging operation is carried out, the torque of the medicine discharging wheel shaft 22 is monitored through the torque sensor 3, the real-time torque signal is transmitted to the controller, the controller compares the signal value with a threshold value, if the signal value exceeds the threshold value, an alarm is generated, at the moment, the magnetic powder brake 4 generates braking action, power is cut off, the mixture moves towards one end of the medicine mixing pipe 10, the ultrasonic density sensor 23 is used for judging the mixing degree of the mixture through detecting the density condition of the mixture, the ultrasonic density sensor 23 transmits the mixed signal to the controller, when the mixing degree is poor, sedimentation is more, the local density difference is large, the non-uniformity is high, the controller can lower the water supply flow of the laminar flow pump 15, improve the mixing uniformity, reduce sedimentation and concentration points, the contact potential sensor 24 at the medicine mixing pipeline flange 19 can receive a change signal when the resistance value of the contact potential changes due to the rising of the water level, the controller is displayed on an electronic screen in real time, the steps of water flow extraction and the like are convenient for workers to switch, when the liquid level reaches the medicine mixing pipe 10, the water supply system is closed, the water outlet of the laminar flow pump 15 is connected with the medicine mixing pipe 10 through the laminar flow pipe 14, the water inlet of the laminar flow pump 15 is connected with the water supply system, the flow rate is determined through the speed sensor 5 and the ultrasonic density sensor 23 of the control system, the water suction pump 8 is started, the annular liquid in the annular cavity is sucked to be dried in 7m through the 3/8' hose 9, repeating the steps until all the medicaments are added;
step 3: closing the medicament adding system, cleaning the machine tool, and after closing the ball valve of the medicament adding system, disassembling the medicament mixing connecting flange to clean the inside of the solid medicament adding device, so as to ensure that no medicament remains in the solid medicament adding device.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature's illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "under" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "lower" may encompass both an upper and lower orientation. The device may be otherwise positioned (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, relational terms such as "first" and "second", and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
The foregoing detailed description of the invention has been presented for purposes of illustration and description, but is not intended to limit the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (9)
1. An adaptation anti-clogging offshore oil gas well solid medicament adds device, its characterized in that: the device comprises a frame, a medicine discharging device, a medicine mixing device, a hose mechanism and an electric control system, wherein the medicine discharging device is arranged on the frame, the medicine mixing device is arranged below the medicine discharging device, an outlet of the medicine discharging device is communicated with an inlet of the medicine mixing device, one end of the hose mechanism stretches into the medicine mixing device, the other end of the hose mechanism stretches into an annulus of an annular empty well, the electric control system is connected with a monitoring system, and various parameter values in the medicine discharging process are fed back to the monitoring system through the electric control system and the work of the medicine discharging device is controlled;
the medicine discharging device comprises a medicine box, a medicine discharging device shell, a medicine feeding component and a driving component, wherein the outlet end of the medicine box is connected with the inlet end of the medicine discharging device shell, the medicine box and the medicine discharging device shell are arranged on the frame, the outlet end of the medicine discharging device shell is communicated with the inlet of the medicine mixing device, the medicine feeding component is arranged in the medicine discharging device shell, the driving component is connected with the medicine feeding component, and the driving component is used for driving the medicine feeding component to slowly and uniformly feed solid medicine in the medicine box into the medicine discharging device shell;
the medicine mixing device comprises a medicine inlet funnel, a medicine inlet flange, a medicine mixing pipe and a laminar flow water pipe, wherein the inlet end of the medicine inlet funnel is communicated with the outlet end of the shell of the medicine discharging device, the outlet end of the medicine inlet funnel is communicated with a medicine inlet formed in the medicine mixing pipe through the medicine inlet flange, an oil stain port and a hose inlet are formed in the side wall of the medicine mixing pipe on one side opposite to the medicine inlet, the medicine mixing pipe flange is mounted at the head end of the medicine mixing pipe, the tail end of the medicine mixing pipe is communicated with the water outlet of the laminar flow water pipe, the water inlet of the laminar flow water pipe is connected with the water outlet of the laminar flow pump, and the hose mechanism extends into the medicine mixing pipe from the position of the medicine mixing pipe flange and finally extends into the annular space of the annular space through a water suction pump at the hose inlet.
2. An adaptive anti-clogging offshore oil and gas well solid agent adding device as defined in claim 1, wherein: the drug delivery assembly comprises an ABS drug delivery wheel, a rigid connector and a drug discharge wheel shaft, wherein the ABS drug delivery wheel is fixed on the drug discharge wheel shaft through the rigid connector, and the ABS drug delivery wheel is arranged according to an Archimedes spiral line; an inspection window is formed in the side wall of the medicine box and used for observing the amount of solid medicines in the medicine box so as to prevent the medicine delivery assembly from being blocked.
3. An adaptive anti-clogging offshore oil and gas well solid agent adding device as claimed in claim 2, wherein: the driving assembly comprises a torque sensor, a magnetic powder brake, a speed sensor, a drug discharging device driving motor, a coupler and a bearing seat, one end of a drug discharging wheel shaft penetrates through the side wall of the drug discharging device shell and is connected with the torque sensor through the bearing seat, the torque sensor sequentially passes through the coupler, the magnetic powder brake and the speed sensor and is connected with an output shaft of the drug discharging device driving motor, the speed sensor is used for determining the rotating speed of the drug discharging wheel shaft and transmitting a speed signal to the controller, and the controller determines the required water discharge of the laminar flow pump through function operation and performs water discharge work.
4. An adaptive anti-clogging offshore oil and gas well solid agent adding device as defined in claim 1, wherein: an ultrasonic density sensor is arranged on one side of the inner wall of the medicine mixing pipe, which is close to the oil pollution port, and a contact potential sensor is arranged at the flange of the medicine mixing pipe.
5. An adaptive anti-clogging offshore oil and gas well solid agent adding device as defined in claim 1, wherein: the water inlet of the laminar flow pump is connected with a water supply system, and the flow speed of the laminar flow pump is determined through a speed sensor and an ultrasonic density sensor in the electric control device.
6. An adaptive anti-clogging offshore oil and gas well solid dosage device as claimed in claim 5, wherein: the electric control device comprises a speed sensor, a contact potential sensor, a torque sensor, an ultrasonic wave density sensor, a controller, a magnetic powder brake and a laminar flow pump.
7. The adaptive anti-clogging offshore oil and gas well solid medicament adding device as claimed in claim 6, wherein: the speed sensor determines the initial water flow of the laminar flow pump through the rotation speed of the drug discharging device driving motor; the torque sensor is used for monitoring the torque change of the drug discharging wheel shaft, when the torque signal of the drug discharging wheel shaft exceeds a threshold value, the controller gives an alarm to remind operators of abnormal drug discharging conditions, the magnetic powder brake receives the signal and then carries out a braking instruction, and the power between the drug discharging device driving motor and the drug discharging wheel shaft is cut off so as to prevent damage.
8. An adaptive anti-clogging offshore oil and gas well solid agent adding device as defined in claim 1, wherein: the hose mechanism adopts a 3/8 'hose, the 3/8' hose stretches into the annulus of the annular cavity well from the inlet of the hose through a water suction pump, the running depth of the 3/8 'hose depends on the resistance of oil stain and seawater in the annulus, the maximum value of the 3/8' hose in-depth is 50m, in the process of adding medicine, the 3/8 'hose is lifted to a position with a fixed height from the horizontal axis of the medicine mixing pipe, the lifting degree on the 3/8' hose is 7m depending on the suction stroke of the suction pump.
9. The method for using the device for adding the solid medicament to the adaptive anti-blocking offshore oil and gas well according to any one of claims 1 to 8, which comprises the following steps:
step 1: the solid medicament adding device is arranged on the pipeline four-way flange through the medicament mixing pipeline flange to form a medicament adding system, solid medicaments are added into the medicament box, the condition of the system and the wearing condition of each part are checked, the integrity of the electric control device is checked, and the operation is prepared;
step 2, after the medicament adding system is started, a 3/8 'hose enters the medicament mixing pipe from the inlet of the hose and stretches into the annulus of the annular well through the water suction pump, the descending depth depends on the resistance of oil stain in the annulus and seawater, the maximum value of the descending depth is 50m, the water supply system is connected with the 3/8' hose firstly, clean water starts to be injected, the oil stain on the pipe wall floats up while the water level rises, the oil-water mixture is discharged from the oil stain port after entering the medicament mixing pipe, and the water supply system is closed while the oil stain port is closed after the oil stain is returned to clean water;
lifting the 3/8 'hose to a fixed height from the horizontal axis of the medicine mixing pipe, lifting the 3/8' hose by the lifting degree, keeping the 3/8 'hose always in the interior of the hose inlet according to the suction stroke of the suction pump, namely Cheng Yaowei m or so of the suction pump commonly used on site, connecting the 3/8' hose with the suction pump, sucking clean water until 7m of water is pumped out, and closing the suction pump;
opening a medicine mixing pipe, connecting a laminar flow water pipe and a laminar flow pump with a water supply system, starting medicine adding operation, determining the rotation speed of a medicine discharging wheel shaft by a speed sensor, transmitting a rotation signal to a controller, determining the water discharge required by the laminar flow pump by the controller through function operation, performing water discharging operation, monitoring the torque of the medicine discharging wheel shaft by a torque sensor, transmitting a real-time torque signal to the controller, comparing a signal value with a threshold value by the controller, generating an alarm if the torque exceeds the threshold value, generating a braking action by a magnetic powder brake at the moment, cutting off power, enabling a mixture to move to one end of the medicine mixing pipe, judging the mixing degree of the mixture by detecting the density condition of the mixture by an ultrasonic density sensor, transmitting the mixed signal to the controller, and judging the mixing degree of the mixture when the mixing degree is poor, the sedimentation is more and the local density difference is large, when the non-uniformity is high, the controller is used for downwards regulating the water supply flow of the laminar flow pump, improving the mixing uniformity, reducing sedimentation and concentration points, a contact potential sensor at a flange of a medicine mixing pipeline is used for receiving a change signal when the contact potential changes in resistance value due to the rising of water level, displaying the change signal on an electronic screen in real time, facilitating the switching of the water flow extraction step of a worker, closing a water supply system when the liquid level reaches a medicine mixing pipe, connecting a water outlet of the laminar flow pump with the medicine mixing pipe through the laminar flow pipe, connecting a water inlet of the laminar flow pump with the water supply system, determining the flow rate through a speed sensor and an ultrasonic density sensor of the control system, opening a water suction pump, sucking liquid in an annular space of an annular empty well to 7m through a 3/8' hose, and repeating the steps until all the medicines are added;
step 3: closing the medicament adding system, cleaning the machine tool, and after closing the ball valve of the medicament adding system, disassembling the medicament mixing connecting flange to clean the inside of the solid medicament adding device, so as to ensure that no medicament remains in the solid medicament adding device.
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