CN210595556U - Deep purification treatment equipment for drilling fluid separation liquid - Google Patents
Deep purification treatment equipment for drilling fluid separation liquid Download PDFInfo
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- CN210595556U CN210595556U CN201920838229.0U CN201920838229U CN210595556U CN 210595556 U CN210595556 U CN 210595556U CN 201920838229 U CN201920838229 U CN 201920838229U CN 210595556 U CN210595556 U CN 210595556U
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Abstract
The utility model provides a drilling fluid separating medium deep purification treatment equipment, including dissolving medicine pond, primary reaction tank, second grade reaction tank, sedimentation tank, middle water tank, clear water tank, quartz sand filter, reverse osmosis unit, dissolving medicine pond is connected with primary reaction tank, second grade reaction tank, clear water tank respectively through dispensing the pipeline, the primary reaction tank water inlet is connected outside former water pitcher, the primary reaction tank delivery port communicates with the water inlet of second grade reaction tank, sedimentation tank and middle water tank in order, middle water tank delivery port communicates with quartz sand filter water inlet, quartz sand filter export divide into three routes, communicate with clear water tank water inlet all the way, communicate with reverse osmosis unit water inlet all the way, another way connects the blow off pipe; the water outlet of the reverse osmosis device is communicated with the water inlet of the clean water tank, and the water outlet of the clean water tank is connected with a drain pipe. The device solves the problems that the separated waste liquid can not be directly recycled and the like, and has the advantages of simple process flow, small occupied area, high automation degree and the like.
Description
Technical Field
The utility model relates to a well drilling discarded object handles retrieval and utilization technical field, concretely relates to drilling fluid separating medium deep purification treatment equipment.
Background
The drilling fluid separation liquid is a liquid-phase product obtained by performing solid-liquid separation on the drilling fluid of the oil-gas field through a centrifugal machine or a filter press after gel breaking and destabilization. One third of waste drilling fluid generated by annual drilling of oil and gas fields in China is discharged to the natural environment, and pollution to the environment and the stratum is caused to different degrees. At present, the main treatment method of drilling fluid in China comprises direct discharge, solidification, solid-liquid separation, backfill and recycling, most of domestic oil fields deposit waste drilling fluid generated in the drilling production process in a digging pool, and the waste fluid in a storage pool is directly solidified after the drilling completion operation is finished. The curing method has the advantages of large consumption of chemical agents, unsatisfactory effect, low automation degree and high cost, can not completely achieve the result of harmless treatment, and can not completely eliminate the hidden pollution trouble. The drilling fluid is subjected to solid-liquid separation treatment, and the separated liquid-phase waste liquid is recycled after treatment, so that the problems of environmental pollution and water resource shortage can be solved, and the treatment cost can be reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a drilling fluid separating medium degree of depth purification treatment facility because of containing a large amount of high valence metal ions to current drilling fluid separating medium, can not direct retrieval and utilization prepare the problem of drilling fluid, solve the separation waste liquid and can not direct cyclic utilization scheduling problem, realize processing apparatus's integration and area's minimizing, guarantee the treatment effect of technology simultaneously.
In order to realize the purpose, the utility model discloses a technical scheme is:
a drilling fluid separation liquid deep purification treatment device comprises a medicine dissolving tank, a primary reaction tank, a secondary reaction tank, a sedimentation tank, an intermediate water tank, a clear water tank, a quartz sand filter and a reverse osmosis device, wherein the medicine dissolving tank is respectively connected with the primary reaction tank, the secondary reaction tank and the clear water tank through medicine dispensing pipelines, a water inlet of the primary reaction tank is connected with an external raw water tank through a raw water inlet pipe, a water outlet of the primary reaction tank is sequentially communicated with water inlets of the secondary reaction tank, the sedimentation tank and the intermediate water tank, a water outlet of the intermediate water tank is communicated with a water inlet of the quartz sand filter through a first connecting water pipe, an outlet of the quartz sand filter is divided into three paths, one path is communicated with a water inlet of the clear water tank through a pipeline mixer, the other path is communicated with a water inlet of the reverse osmosis device through a; and the water outlet of the reverse osmosis device is communicated with the water inlet of the clean water tank through a third connecting water pipe, and the water outlet of the clean water tank is connected with a drain pipe.
The water outlet of the clean water tank is also communicated with the water inlet of the quartz sand filter through a fourth connecting water pipe, and a filtering back-washing pump is installed on the fourth connecting water pipe.
The water outlet of the clean water tank is communicated with the water inlet of the reverse osmosis device through a fifth connecting water pipe, and a reverse osmosis flushing pump is installed on the fifth connecting water pipe.
The medicine dissolving pool comprises a first medicine dissolving pool, a second medicine dissolving pool, a third medicine dissolving pool, a fourth medicine dissolving pool and a fifth medicine dissolving pool, the second medicine dissolving pool is connected with the primary reaction pool through a first medicine dispensing pipeline provided with a second medicine adding pump, the first medicine dissolving pool, the third medicine dissolving pool and the fourth medicine dissolving pool are respectively connected with the secondary reaction pool through a second medicine dispensing pipeline provided with a first medicine adding pump, and the fifth medicine dissolving pool is connected with the clean water tank through a third medicine dispensing pipeline provided with a third medicine adding pump.
The first medicine dissolving tank, the second medicine dissolving tank, the third medicine dissolving tank, the fourth medicine dissolving tank and the fifth medicine dissolving tank are internally provided with liquid level meters, the first medicine dissolving tank is provided with a first stirrer, the second medicine dissolving tank is provided with a fourth stirrer, the third medicine dissolving tank is provided with a second stirrer, the fourth medicine dissolving tank is provided with a third stirrer, and the fifth medicine dissolving tank is provided with a seventh stirrer;
the raw water inlet pipe is provided with a water inlet booster pump, the first connecting water pipe is provided with a filtering booster pump, and the second connecting water pipe is provided with a security filter and a reverse osmosis booster pump.
The primary reaction tank is provided with a fifth stirrer, the secondary reaction tank is provided with a sixth stirrer, the clear water tank is provided with an eighth stirrer, and the middle water tank is provided with a ninth stirrer.
Drilling fluid separating medium degree of depth purification treatment equipment still includes the block terminal, respectively with reverse osmosis booster pump, reverse osmosis flushing pump intake booster pump, filtration backwash pump, first dosing pump, second dosing pump, third dosing pump, first agitator, second agitator, third agitator, fourth agitator, fifth agitator, sixth agitator, seventh agitator, eighth agitator, ninth agitator electricity are connected.
The primary reaction tank, the secondary reaction tank, the sedimentation tank and the intermediate water tank are sequentially separated by a partition plate, and a communicating hole is formed in the partition plate; a set of parallel inclined plates is arranged in the sedimentation tank, and a sludge discharge pipe is arranged at the bottom of the sedimentation tank.
A deep purification treatment method of a drilling fluid separation liquid comprises the following steps,
s1, a normal dispensing process: the outer external clean water tank → the primary reaction tank, the secondary reaction tank → the dispensing pipeline → the drug dissolving tank;
under the condition that no external clear water is used for dispensing, the method enters the step S to start an emergency dispensing process;
s2, emergency medicine dispensing process: a primary reaction tank of the clean water tank, a secondary reaction tank → a dispensing pipeline → a medicine dissolving tank;
s3, a daily water treatment process: the external raw water tank → the inlet water booster pump → the primary reaction tank → the secondary reaction tank → the sedimentation tank → the intermediate water tank → the filtration booster pump → the quartz sand filter → the pipeline mixer → the clean water tank;
s4, daily washing and purifying flow: external clean water tank → filtration backwash pump → quartz sand filter → external sewage tank;
if the water supply is cut off or the daily washing and purifying process cannot be carried out due to the lack of water in the construction site, the step S is required,
s5, emergency flushing and purifying process: clear water tank → filtration backwash pump → quartz sand filter → external sewage tank;
s6, reverse osmosis treatment flow: the external raw water tank → the inflow water lift pump → the primary reaction tank → the secondary reaction tank → the sedimentation tank → the intermediate water tank → the filtration booster pump → the quartz sand filter → the cartridge filter → the reverse osmosis device → the clean water tank → the external clean water tank;
s7, reverse osmosis flushing flow: an external clean water tank → a reverse osmosis flushing pump → a reverse osmosis device → sewage discharge;
s8, emergency reverse osmosis flushing flow: clear water tank → reverse osmosis flushing pump → reverse osmosis device → sewage discharge.
Compared with the prior art, the beneficial effects of the utility model are that:
when the device is used, the original separation liquid enters the drilling fluid separation liquid deep purification treatment device through the water inlet lifting pump, most of high-valence metal ions in the original water are removed through reaction with the medicament, and then the pH is adjusted and the ion shielding agent is added to obtain the final treated water. The equipment is suitable for deep purification treatment of removing high-valence metal cations from the drilling fluid separation liquid of all oil and gas fields, more than 90% of the high-valence metal cations can be removed, the treated liquid phase recycling slurry preparation rate reaches 100%, and the equipment has the advantages of simple process flow, compact structure, small occupied area, low energy consumption, safe and reliable use, convenient maintenance, high automation degree and simple and convenient operation.
The following will be further described with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic flow chart of the present invention.
Description of reference numerals:
1-a first medicine dissolving tank, 2-a second medicine dissolving tank, 3-a third medicine dissolving tank, 4-a fourth medicine dissolving tank, 5-a primary reaction tank, 6-a secondary reaction tank, 7-a sedimentation tank, 8-an intermediate water tank, 9-a fifth medicine dissolving tank, 10-a clear water tank, 11-a reverse osmosis booster pump, 12-a quartz sand filter, 13-a cartridge filter, 14-a reverse osmosis flushing pump, 15-a reverse osmosis system, 16-a distribution box, 17-a water inlet booster pump, 18-a first stirrer, 19-a second stirrer, 20-a third stirrer, 21-a fourth stirrer, 22-a fifth stirrer, 23-a sixth stirrer, 24-a seventh stirrer, 25-an eighth stirrer, 26-a first medicine adding pump, 27-a second medicine adding pump, 28-filtration booster pump, 29-third dosing pump, 30-fourth dosing pump, 31-ninth stirrer, 32-raw water inlet pipe, 33-water outlet pipe, 34-connecting water pipe I, 35-connecting water pipe II, 36-connecting water pipe III, 37-connecting water pipe IV, 38-connecting water pipe V, 39-pipeline mixer.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the drawings and examples.
Example 1
As shown in figure 1, the deep purification treatment equipment for the drilling fluid separation liquid comprises a medicine dissolving tank, a primary reaction tank 5, a secondary reaction tank 6, a sedimentation tank 7, an intermediate water tank 8, a clear water tank 10, a quartz sand filter 12 and a reverse osmosis device 15, wherein the medicine dissolving tank is respectively connected with the primary reaction tank 5, the secondary reaction tank 6 and the clear water tank 10 through medicine dispensing pipelines, a water inlet of the primary reaction tank 5 is connected with an external raw water tank through a raw water inlet pipe 32, a water outlet of the primary reaction tank 5 is sequentially communicated with water inlets of the secondary reaction tank 6, the sedimentation tank 7 and the intermediate water tank 8, a water outlet of the intermediate water tank 8 is communicated with a water inlet of the quartz sand filter 12 through a connecting water pipe one 34, an outlet of the quartz sand filter 12 is divided into three paths, one path is communicated with the water inlet of the clear water tank 10 through a pipeline mixer 39, the other path is communicated with a water inlet, the other path is connected with a sewage discharge pipe; the water outlet of the reverse osmosis device 15 is communicated with the water inlet of the clean water tank 10 through a third connecting water pipe 36, and the water outlet of the clean water tank 10 is connected with a drain pipe 33.
The principle of the utility model is that:
raw water enters a primary reaction tank 5 through a raw water inlet pipe 32, flows into the primary reaction tank 5 from a communication hole of a partition plate on the side of the primary reaction tank 5, is mixed and stirred with a chemical fed into the primary reaction tank 5 by a second chemical dissolving tank 2, the reaction water flows into a secondary reaction tank 6 from a communication hole of a partition plate between the primary reaction tank 5 and the secondary reaction tank 6, then flows into a sedimentation tank 7 from a communication hole of a partition plate between the secondary reaction tank 6 and the sedimentation tank 7, supernatant flows into an intermediate water tank 8 from a communication hole of a partition plate between the sedimentation tank 7 and the intermediate water tank 8, a filtration booster pump 28 presses outlet water into a quartz sand filter 12 through a connecting water pipe 34, then flows into a clean water tank 10 through a connecting water pipe 37, and the clean water tank 10.
When the device is used, the original separation liquid enters the drilling fluid separation liquid deep purification treatment device through the water inlet lifting pump, most of high-valence metal ions in the original water are removed through reaction with the medicament, and then the pH is adjusted and the ion shielding agent is added to obtain the final treated water. The equipment is suitable for deep purification treatment of removing high-valence metal cations from the drilling fluid separation liquid of all oil and gas fields, more than 90% of the high-valence metal cations can be removed, the treated liquid phase recycling slurry preparation rate reaches 100%, the equipment process flow is simple, the structure is compact, the occupied area is small, the energy consumption is low, the use is safe and reliable, the overhaul is convenient, the automation degree is high, and the operation is simple and convenient.
Example 2
On the basis of the embodiment 1, further, the water outlet of the clean water tank 10 is also communicated with the water inlet of the quartz sand filter 12 through a connecting water pipe four 37, and the filtering backwash pump 29 is installed on the connecting water pipe four 37.
Further, the water outlet of the clean water tank 10 is also communicated with the water inlet of the reverse osmosis device 15 through a connecting water pipe five 38, and a reverse osmosis flushing pump 14 is installed on the connecting water pipe five 38. The raw water inlet pipe 32 is provided with an inlet booster pump 17, the first connecting water pipe 34 is provided with a filtering booster pump 28, and the second connecting water pipe 35 is provided with a reverse osmosis booster pump 11.
Further, the medicine dissolving pools include a first medicine dissolving pool 1, a second medicine dissolving pool 2, a third medicine dissolving pool 3, a fourth medicine dissolving pool 4 and a fifth medicine dissolving pool 9, the first medicine dissolving pool 1 is provided with a first stirrer 18, the second medicine dissolving pool 2 is provided with a fourth stirrer 21, the third medicine dissolving pool 3 is provided with a second stirrer 19, the fourth medicine dissolving pool 4 is provided with a third stirrer 20, the fifth medicine dissolving pool 9 is provided with a seventh stirrer 24, the primary reaction pool 5 is provided with a fifth stirrer 22, the secondary reaction pool 6 is provided with a sixth stirrer 23, the clear water tank 10 is provided with an eighth stirrer 25, and the intermediate water tank 8 is provided with a ninth stirrer 31;
the second dissolves medicine pond 2 and is connected with primary reaction tank 5 through installing the pipeline that dispenses of second dosing pump 27, first dissolve medicine pond 1, third dissolve medicine pond 3 and fourth dissolve medicine pond 4 and all be connected with second grade reaction tank 6 through installing the pipeline two that dispenses of first dosing pump 26, fifth dissolve medicine pond 9 is connected with clear water tank 10 through installing the pipeline three that dispenses of third dosing pump 30.
Example 3
On the basis of the above embodiment, further, a first Y-filter and a first front check ball valve are arranged on the second dispensing pipes between the first drug dissolving tank 1, the third drug dissolving tank 3, the fourth drug dissolving tank 4 and the first dosing pump 26, and a first rear check ball valve is arranged on the second dispensing pipe between the first dosing pump 26 and the second-stage reaction tank 6; a second Y-shaped filter and a second front check ball valve are arranged on the first dispensing pipeline between the second medicine dissolving tank 2 and the second medicine adding pump 27, and a second rear check ball valve is arranged on the first dispensing pipeline between the second medicine adding pump 27 and the primary reaction tank 5; a third Y-shaped filter and a third front check ball valve are arranged on a third dispensing pipeline between the fifth medicine dissolving tank 9 and the third medicine adding pump 30, and a third rear check ball valve is arranged on a third dispensing pipeline between the third medicine adding pump 30 and the clear water tank 10; the clean water tank 10 is communicated with the primary reaction tank 5 through a connection water pipe six 39, and the connection water pipe six 39 is provided with a back check ball valve four.
The liquid levels in the first medicine dissolving pool 1, the second medicine dissolving pool 2, the third medicine dissolving pool 3, the fourth medicine dissolving pool 4 and the fifth medicine dissolving pool 9 are convenient to observe so as to ensure that the concentration of dispensed medicines meets the requirement. Level meters are arranged in the first medicine dissolving pool 1, the second medicine dissolving pool 2, the third medicine dissolving pool 3, the fourth medicine dissolving pool 4 and the fifth medicine dissolving pool 9.
Further, a raw water inlet pipe 32 between the water inlet booster pump 17 and the primary reaction tank 5 is provided with a flow regulating ball valve I and a flow meter capable of counting the total amount; a first pump switch ball valve is arranged on a first connecting water pipe 34 between the intermediate water tank 8 and the filtering booster pump 28, and a second flow regulating ball valve, a first flow meter and a filter water inlet pressure gauge are arranged on a first connecting water pipe 34 between the filtering booster pump 28 and the quartz sand filter 12; a filter outlet pressure gauge is arranged at the outlet of the quartz sand filter 12, a first switch ball valve is arranged on a second connecting water pipe 35 between the filter outlet pressure gauge and the security filter 13, a second pump front switch ball valve is arranged on a second connecting water pipe 35 between the security filter 13 and the reverse osmosis booster pump 11, and a third flow regulating ball valve, a second flow meter, a reverse osmosis inlet pressure gauge and a second switch ball valve are arranged on a second connecting water pipe 35 between the reverse osmosis booster pump 11 and the reverse osmosis system 15; a third connecting water pipe 36 between the reverse osmosis system 15 and the clean water tank 10 is provided with a reverse osmosis water outlet pressure gauge, a fourth flow regulating ball valve and a third flow meter; a third switch ball valve is arranged at the water outlet of the clean water tank 10, and a third pump front switch ball valve is arranged on a fourth connecting water pipe 37 between the third switch ball valve and the filtering backwashing pump 29; a pump front switch ball valve IV is arranged on a connecting water pipe V38 between the switch ball valve III and the reverse osmosis flushing pump 14; and a switch ball valve IV is arranged at the outlet of the external clean water tank.
The equipment is used for removing high-valence metal ions in the oil-gas field drilling fluid separation liquid, the removal rate of the high-valence metal ions can reach over 90 percent, the recycling and slurry preparation rate of the separation liquid can reach 100 percent, the problems of environmental pollution and shortage of water resources in a drilling site are solved, and the comprehensive drilling cost is saved.
Example 4
On the basis of the above embodiment, the primary reaction tank 5, the secondary reaction tank 6, the sedimentation tank 7 and the intermediate water tank 8 are sequentially separated by partition plates, and communication holes are formed in the partition plates.
The sedimentation tank 7 applies the principle of 'shallow layer sedimentation', and a group of 60-degree parallel inclined plates are arranged in a sedimentation area, so that the treated water and the settled sediments move mutually and are separated in a sedimentation shallow layer. The bottom of the sedimentation tank is provided with a sludge discharge pipe, and separated sediments slide downwards to the bottom of the sedimentation tank along the inclined plate under the action of gravity and are discharged in a centralized manner through the sludge discharge pipe.
Example 5
The deep purification treatment equipment for the drilling fluid separation liquid further comprises a distribution box 16, a power supply for controlling each pump and the stirrer is respectively and electrically connected with the reverse osmosis booster pump 11, the reverse osmosis flushing pump 14, the water inlet booster pump 17, the filtration booster pump 28, the filtration backwashing pump 29, the first dosing pump 26, the second dosing pump 27, the third dosing pump 30, the first stirrer 18, the second stirrer 19, the third stirrer 20, the fourth stirrer 21, the fifth stirrer 22, the sixth stirrer 23, the seventh stirrer 24, the eighth stirrer 25 and the ninth stirrer 31.
Compared with the prior art, the utility model provides a traditional approach polluted environment scheduling problem, through the power of each pump of block terminal control and agitator simultaneously, realized automatic operation, the treatment effect is stable, has important meaning in sewage cyclic utilization treatment field.
Example 6
The reverse osmosis device 15 comprises a reverse osmosis membrane, a membrane shell, a rack and an electric cabinet, the reverse osmosis washing pump 14 is connected with clean water, a filter medium is washed reversely, the clean water is discharged from the upstream, and impurities attached to the surface and the inside of the medium can be cleaned in the process; the reverse osmosis booster pump 11 is an important component of the reverse osmosis device and is used for delivering a water source with certain flow rate and pressure to the RO membrane; the cartridge filter 13 is the last filtering device before the raw water enters the reverse osmosis membrane, a filter element with the filtering aperture of 5 microns is arranged in the cartridge filter, the cartridge filter 13 utilizes the aperture of 5 microns of the PP filter element to carry out mechanical filtration, under the action of pressure, the raw water passes through the filter material, filter residues are remained on the tube wall, and filtrate flows out through the filter material, so that tiny particles in the water are removed. A cartridge type cartridge filter is usually arranged before reverse osmosis water inflow, in order to prevent particles which are not completely removed or newly generated in the sedimentation tank 7 from entering a reverse osmosis system, thereby achieving the purpose of protecting the high-pressure pump and the reverse osmosis membrane.
Example 7
As shown in fig. 2, a method for deep purification treatment of drilling fluid separation liquid comprises,
s1 normal dispensing process: the outer external clean water tank → the primary reaction tank 5, the secondary reaction tank 6 → the dispensing pipe → the drug dissolving tank;
under the condition that no external clear water is used for dispensing, the method goes to step S2 to start an emergency dispensing process;
s2 emergency dispensing process: the clear water tank 10 comprises a primary reaction tank 5, a secondary reaction tank 6 → a dispensing pipeline → a medicine dissolving tank;
s3, a daily water treatment process: the external raw water tank → the influent water booster pump 17 → the primary reaction tank 5 → the secondary reaction tank 6 → the sedimentation tank 7 → the intermediate water tank 8 → the filtration booster pump 28 → the silica sand filter 12 → the pipe mixer 39 → the clear water tank 10;
s4, daily washing and purifying flow: external clean water tank → filtration backwash pump 29 → quartz sand filter 12 → external sewage tank; the back washing is carried out after the operation is finished every day; monitoring the water inlet pressure of the filter every half hour, stopping the water treatment process when the pressure exceeds 0.3MPa, and performing backwashing; the back washing is carried out at the maximum flow in principle, if the inlet pressure at the initial stage of washing exceeds 0.3MPa, the flow can be reduced through a flow regulating valve of a back washing pump, the washing lift is increased, but the duration time cannot be too long;
if the water supply is cut off or the daily washing and purifying process cannot be performed due to lack of water at the construction site, the process goes to step S5,
s5 emergency flushing purification process: clear water tank 10 → filtration backwash pump 29 → quartz sand filter 12 → external sewage tank;
s6 reverse osmosis treatment process: the external raw water tank → the intake water lift pump 17 → the primary reaction tank 5 → the secondary reaction tank 6 → the sedimentation tank 7 → the intermediate water tank 8 → the filtration booster pump 28 → the silica sand filter 12 → the cartridge filter 13 → the reverse osmosis device 15 → the clean water tank 10 → the external clean water tank;
s7 reverse osmosis flushing flow: the external clean water tank → the reverse osmosis flushing pump 14 → the reverse osmosis device 15 → the sewage discharge;
s8 emergency reverse osmosis flushing flow: clear water tank 10 → reverse osmosis flushing pump 14 → reverse osmosis device 15 → sewage discharge.
Example 8
A deep purification treatment method of a drilling fluid separation liquid comprises the following steps,
s1, normal dispensing process: the external clean water tank → the primary reaction tank 5, the secondary reaction tank 6 → the dispensing pipe → the drug dissolving tank; the specific operation flow is as follows: opening an external dispensing valve (a first flow regulating ball valve) → closing the dispensing valves (a fourth rear check valve) → sequentially opening the rear check valves on the dispensing pipelines, including a first rear check valve, a second rear check valve and a third rear check valve → injecting water into the medicine dissolving pools to a specified water level → closing the rear check valves on the dispensing pipelines → starting the corresponding stirrers of the medicine dissolving pools → fully dissolving the medicines;
under the condition that no external clear water is used for dispensing, the method goes to step S2 to start an emergency dispensing process;
s2, emergency medicine dispensing process: the clear water tank 10 comprises a primary reaction tank 5, a secondary reaction tank 6 → a dispensing pipeline → a medicine dissolving tank; the specific operation flow is as follows: closing an external dispensing valve (a first flow regulating ball valve) → opening a dispensing valve (a fourth rear check valve) → sequentially opening rear check valves on the dispensing pipelines, including a first rear check valve, a second rear check valve and a third rear check valve → injecting water into the medicine dissolving pools to a specified water level → closing the rear check valves on the dispensing pipelines → starting corresponding stirrers of the medicine dissolving pools → fully dissolving the medicines;
s3, a daily water treatment process: the external raw water tank → the influent water booster pump 17 → the primary reaction tank 5 → the secondary reaction tank 6 → the sedimentation tank 7 → the intermediate water tank 8 → the filtration booster pump 28 → the silica sand filter 12 → the pipe mixer 39 → the clear water tank 10; the specific operation flow is as follows: sequentially opening the control valves on the raw water inlet pipe 32 and the first connecting water pipe 34, closing the control valves on the other pipelines → supplying water to the external water supply to the filtering booster pump 28 → opening the filtering booster pump 28 → rotating the first flow regulating valve to regulate the water inlet flow → sequentially injecting water to the front of the filtering booster pump → opening the filtering booster pump → rotating the second flow regulating valve to regulate the water inlet flow → discharging water from the clean water tank 10;
s4, daily washing and purifying flow: external clean water tank → filtration backwash pump 29 → quartz sand filter 12 → external sewage tank; the specific operation flow is as follows: and (3) sequentially opening the switch ball valves on the back flush flow pipelines (the first connecting water pipe 34 and the fourth connecting water pipe 37), closing the front check valve of the cartridge filter (13) and the rear check valve of the reverse osmosis flushing pump 14 → supplying water to the outside to the filtering back flush pump 29 → starting the filtering back flush pump 29 → flushing for 10 minutes or discharging water to clear → finishing the flushing of the water pump. (backwashing is carried out after the operation is finished every day; the water inlet pressure of the quartz sand filter 12 is monitored every half hour, the water treatment process is stopped when the pressure exceeds 0.3MPa, backwashing is carried out, the backwashing is carried out by adopting the maximum flow in principle, if the inlet pressure of the washing initial stage exceeds 0.3MPa, the flow can be reduced by a flow regulating valve of a backwashing pump, the flushing lift is increased, but the duration time cannot be too long)
If the water supply is cut off or the daily washing and purifying process cannot be performed due to lack of water at the construction site, the process goes to step S5,
s5, emergency flushing and purifying process: clear water tank 10 → filtration backwash pump 29 → quartz sand filter 12 → external sewage tank; the specific operation flow is as follows: sequentially opening the switch ball valves on the back flush flow pipelines (a first connecting water pipe 34 and a fourth connecting water pipe 37), closing the control valves of the dosing pumps (the first dosing pump 26, the second dosing pump 27 and the third dosing pump 30) → the clean water tank is automatically flowed to the filtering back flush pump 29 → turning on the filtering back flush pump 29 → flushing for 10 minutes or discharging water becomes clear → turning off the water pump flushing is finished;
s6, reverse osmosis treatment flow: the external raw water tank → the intake water lift pump 17 → the primary reaction tank 5 → the secondary reaction tank 6 → the sedimentation tank 7 → the intermediate water tank 8 → the filtration booster pump 28 → the silica sand filter 12 → the cartridge filter 13 → the reverse osmosis device 15 → the clean water tank 10 → the external clean water tank;
the specific operation flow is as follows: sequentially opening control valves on a raw water inlet pipe 32, a first connecting water pipe 34, a second connecting water pipe 35 and a third connecting water pipe 36, closing the control valves on the other pipelines → supplying water to the filtering booster pump 28 from the outside → opening the filtering booster pump 28 → adjusting the water inlet flow rate by rotating a flow adjusting valve → sequentially injecting water to the front of the filtering booster pump 28 → opening the filtering booster pump 28 → pumping water to the front of the reverse osmosis booster pump 11 → opening the reverse osmosis booster pump 11 → adjusting the flow rate by slowly rotating a reverse osmosis water inlet flow adjusting valve → adjusting the flow rate → the clear water to a clear water tank; when the water reaches a certain dosing point or a stirring point, a corresponding dosing pump or a stirrer is started; the water pump can be started after the water flows to the front of the pump and is fully exhausted; recording the dosing time according to the dosing amount, closing the dosing pump in time before the dosing of the medicament is finished, and closing the corresponding front check valve and the corresponding rear check valve; monitoring reverse osmosis water inlet pressure every half hour, stopping the flow when the pressure exceeds 3MPa, and flushing; and monitoring the condition of the page of the middle water tank to adjust the filtration, reverse osmosis or water inlet flow.
S7, reverse osmosis flushing flow: the external clean water tank → the reverse osmosis flushing pump 14 → the reverse osmosis device 15 → the sewage discharge; the specific operation flow is as follows: sequentially opening a switch ball valve IV and a switch ball valve IV in front of the pump, closing a clear water outlet valve and other control valves → supplying water to the reverse osmosis flushing pump 14 from the outside → opening the reverse osmosis flushing pump 14 → flushing for 20 minutes or clearing the discharged water; continuously operating for 4 hours for washing; monitoring the water inlet pressure of the reverse osmosis system every half hour, stopping the water treatment process when the pressure exceeds 3MPa, and flushing; if the water yield is obviously reduced, the water treatment process is stopped and the water is flushed.
S8, emergency reverse osmosis flushing flow: clear water tank 10 → reverse osmosis flushing pump 14 → reverse osmosis device 15 → sewage discharge. The specific operation flow is as follows: sequentially opening a switch ball valve III and a switch ball valve IV in front of the pump, closing a clear water outlet valve and other control valves → supplying water to the reverse osmosis flushing pump 14 from the outside → opening the reverse osmosis flushing pump 14 → flushing for 20 minutes or clearing the discharged water; the water level in the clear water tank should be noted to prevent dry suck-up of the pump.
The above illustration is merely an illustration of the present invention, and does not limit the scope of the present invention, and all designs identical or similar to the present invention are within the scope of the present invention. The components and structures of the present embodiments that are not described in detail are well known in the art and do not constitute essential structural elements or elements.
Claims (10)
1. The deep purification treatment equipment for the drilling fluid separation liquid is characterized in that: comprises a medicine dissolving tank, a primary reaction tank (5), a secondary reaction tank (6), a sedimentation tank (7), an intermediate water tank (8), a clean water tank (10), a quartz sand filter (12) and a reverse osmosis device (15), wherein the medicine dissolving tank is respectively connected with the primary reaction tank (5), the secondary reaction tank (6) and the clean water tank (10) through a medicine dispensing pipeline, the water inlet of the primary reaction tank (5) is connected with an external raw water tank through a raw water inlet pipe (32), the water outlet of the primary reaction tank (5) is communicated with the water inlets of the secondary reaction tank (6), the sedimentation tank (7) and the intermediate water tank (8) in sequence, the water outlet of the intermediate water tank (8) is communicated with the water inlet of the quartz sand filter (12) through a connecting water pipe I (34), the outlet of the quartz sand filter (12) is divided into three paths, and the other path is communicated with the water, one path is communicated with a water inlet of the reverse osmosis device (15) through a connecting water pipe II (35), and the other path is connected with a sewage discharge pipe; the water outlet of the reverse osmosis device (15) is communicated with the water inlet of the clean water tank (10) through a third connecting water pipe (36), and the water outlet of the clean water tank (10) is connected with a drain pipe (33).
2. The deep purification treatment equipment for the drilling fluid separation liquid according to claim 1, characterized in that: the water outlet of the clean water tank (10) is also communicated with the water inlet of the quartz sand filter (12) through a connecting water pipe four (37), and a filtering back-washing pump (29) is installed on the connecting water pipe four (37).
3. The deep purification treatment equipment for the drilling fluid separation liquid according to claim 1, characterized in that: the water outlet of the clean water tank (10) is communicated with the water inlet of the reverse osmosis device (15) through a connecting water pipe five (38), and a reverse osmosis flushing pump (14) is installed on the connecting water pipe five (38).
4. The deep purification treatment equipment for the drilling fluid separation liquid according to claim 1, characterized in that: the medicine dissolving pool comprises a first medicine dissolving pool (1), a second medicine dissolving pool (2), a third medicine dissolving pool (3), a fourth medicine dissolving pool (4) and a fifth medicine dissolving pool (9), wherein the second medicine dissolving pool (2) is connected with a primary reaction pool (5) through a first medicine dispensing pipeline provided with a second medicine adding pump (27), the first medicine dissolving pool (1), the third medicine dissolving pool (3) and the fourth medicine dissolving pool (4) are respectively connected with a secondary reaction pool (6) through a second medicine dispensing pipeline provided with a first medicine adding pump (26), and the fifth medicine dissolving pool (9) is connected with a clear water tank (10) through a third medicine dispensing pipeline provided with a third medicine adding pump (30).
5. The deep purification treatment equipment for the drilling fluid separation liquid according to claim 4, wherein the deep purification treatment equipment comprises: level gauges are arranged in the first medicine dissolving tank (1), the second medicine dissolving tank (2), the third medicine dissolving tank (3), the fourth medicine dissolving tank (4) and the fifth medicine dissolving tank (9).
6. The deep purification treatment equipment for the drilling fluid separation liquid according to claim 4, wherein the deep purification treatment equipment comprises: the first medicine dissolving tank (1) is provided with a first stirrer (18), the second medicine dissolving tank (2) is provided with a fourth stirrer (21), the third medicine dissolving tank (3) is provided with a second stirrer (19), the fourth medicine dissolving tank (4) is provided with a third stirrer (20), and the fifth medicine dissolving tank (9) is provided with a seventh stirrer (24).
7. The deep purification treatment equipment for the drilling fluid separation liquid according to claim 1, characterized in that: install into water booster pump (17) on raw water inlet tube (32), install on connecting water pipe (34) and filter booster pump (28), install cartridge filter (13) and reverse osmosis booster pump (11) on connecting water pipe two (35).
8. The deep purification treatment equipment for the drilling fluid separation liquid according to claim 1, characterized in that: the primary reaction tank (5) is provided with a fifth stirrer (22), the secondary reaction tank (6) is provided with a sixth stirrer (23), the clear water tank (10) is provided with an eighth stirrer (25), and the intermediate water tank (8) is provided with a ninth stirrer (31).
9. The deep purification treatment equipment for the drilling fluid separation liquid according to claim 7, wherein the deep purification treatment equipment comprises: the device is characterized by further comprising a distribution box (16) which is electrically connected with the reverse osmosis booster pump (11), the reverse osmosis flushing pump (14), the water inlet booster pump (17), the filtration booster pump (28), the filtration backwashing pump (29), the first dosing pump (26), the second dosing pump (27), the third dosing pump (30), the first stirrer (18), the second stirrer (19), the third stirrer (20), the fourth stirrer (21), the fifth stirrer (22), the sixth stirrer (23), the seventh stirrer (24), the eighth stirrer (25) and the ninth stirrer (31) respectively.
10. The deep purification treatment equipment for the drilling fluid separation liquid according to claim 1, characterized in that: the primary reaction tank (5), the secondary reaction tank (6), the sedimentation tank (7) and the intermediate water tank (8) are sequentially separated by partition plates, and communication holes are formed in the partition plates; a group of parallel inclined plates are arranged in the sedimentation tank (7), and a sludge discharge pipe is arranged at the bottom of the sedimentation tank (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920838229.0U CN210595556U (en) | 2019-06-05 | 2019-06-05 | Deep purification treatment equipment for drilling fluid separation liquid |
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| CN201920838229.0U CN210595556U (en) | 2019-06-05 | 2019-06-05 | Deep purification treatment equipment for drilling fluid separation liquid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255756A (en) * | 2019-06-05 | 2019-09-20 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of drilling fluid separating liquid deep purifying processing equipment and purifying treatment method |
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2019
- 2019-06-05 CN CN201920838229.0U patent/CN210595556U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255756A (en) * | 2019-06-05 | 2019-09-20 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of drilling fluid separating liquid deep purifying processing equipment and purifying treatment method |
| CN110255756B (en) * | 2019-06-05 | 2024-04-30 | 中国石油天然气集团有限公司 | Drilling fluid separation liquid deep purification treatment equipment and purification treatment method |
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Effective date of registration: 20201113 Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Chuanqing Drilling Engineering Co.,Ltd. Address before: 710018 Shaanxi city of Xi'an province Weiyang District four road Fengcheng Changqing Technology Building Patentee before: CNPC CHUANQING DRILLING ENGINEERING COMPANY LIMITED ENGINEERING TECHNOLOGY Research Institute |
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