CN111334378A - Cleaning agent, preparation, use and cleaning system for oil drilling platform - Google Patents
Cleaning agent, preparation, use and cleaning system for oil drilling platform Download PDFInfo
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- CN111334378A CN111334378A CN201811556832.6A CN201811556832A CN111334378A CN 111334378 A CN111334378 A CN 111334378A CN 201811556832 A CN201811556832 A CN 201811556832A CN 111334378 A CN111334378 A CN 111334378A
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- 239000012459 cleaning agent Substances 0.000 title claims abstract description 115
- 238000004140 cleaning Methods 0.000 title claims abstract description 69
- 238000005553 drilling Methods 0.000 title claims abstract description 51
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000010779 crude oil Substances 0.000 claims abstract description 94
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000003921 oil Substances 0.000 claims abstract description 59
- 239000004094 surface-active agent Substances 0.000 claims abstract description 34
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 33
- 229920000570 polyether Polymers 0.000 claims abstract description 33
- 150000002763 monocarboxylic acids Chemical class 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 150000007529 inorganic bases Chemical class 0.000 claims abstract description 25
- 239000001384 succinic acid Substances 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 17
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 claims abstract description 9
- 239000003208 petroleum Substances 0.000 claims description 31
- 238000011084 recovery Methods 0.000 claims description 31
- 238000005507 spraying Methods 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 12
- XZOYHFBNQHPJRQ-UHFFFAOYSA-N 7-methyloctanoic acid Chemical compound CC(C)CCCCCC(O)=O XZOYHFBNQHPJRQ-UHFFFAOYSA-N 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 7
- OEOIWYCWCDBOPA-UHFFFAOYSA-N 6-methyl-heptanoic acid Chemical compound CC(C)CCCCC(O)=O OEOIWYCWCDBOPA-UHFFFAOYSA-N 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- 238000007865 diluting Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 19
- 229910000831 Steel Inorganic materials 0.000 abstract description 12
- 239000010959 steel Substances 0.000 abstract description 12
- 230000001681 protective effect Effects 0.000 abstract description 9
- -1 monocarboxylic acid salt Chemical class 0.000 abstract description 6
- 239000003973 paint Substances 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 21
- 230000000052 comparative effect Effects 0.000 description 18
- 239000013535 sea water Substances 0.000 description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- 238000006386 neutralization reaction Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000010790 dilution Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 230000003472 neutralizing effect Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000005063 solubilization Methods 0.000 description 2
- 230000007928 solubilization Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/008—Polymeric surface-active agents
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/044—Hydroxides or bases
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2079—Monocarboxylic acids-salts thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2082—Polycarboxylic acids-salts thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/14—Hard surfaces
- C11D2111/20—Industrial or commercial equipment, e.g. reactors, tubes or engines
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Inorganic Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
The invention relates to the technical field of cleaning of oil drilling platforms, in particular to a cleaning agent, a preparation method, a use method and a cleaning system for an oil drilling platform. The paint comprises the following components in parts by weight: 5-8 parts of inorganic base, 3-8 parts of monocarboxylic acid and succinic acid, 3-5 parts of polyether surfactant and 60-70 parts of water. The monocarboxylic acid and the succinic acid can react with the inorganic base to form monocarboxylic acid salt and succinic acid salt respectively, the monocarboxylic acid salt and the succinic acid salt can be adsorbed on the surface of steel to form a layer of protective film, the protective film has a short-time protective effect on the surface of the steel, and the polyether surfactant has a good cleaning and dispersing effect in the invention. The components of the cleaning agent have good solubility at normal temperature, and the solution is not separated; the crude oil is also good in solubility after being heated, and after the mixed liquid for dissolving the crude oil is collected and cooled to the room temperature, the crude oil is separated from the cleaning agent, so that the cleaning agent and the crude oil can be conveniently recovered, and the energy-saving and environment-friendly effects are achieved.
Description
Technical Field
The invention relates to the technical field of cleaning of oil drilling platforms, in particular to a cleaning agent, a preparation method, a use method and a cleaning system for an oil drilling platform.
Background
At present, the demand for oil and natural gas is increasing day by day, the number of offshore oil drilling platforms is continuously increased, a large amount of crude oil is easily attached to the surface of the oil drilling platform and a drill bit, and the normal operation is influenced and the oil exploitation efficiency is reduced due to the fact that more crude oil is attached to the drill bit; crude oil attached to the surface of the platform also influences the walking of people and the carrying of equipment, and the normal operation of workers can be influenced when the crude oil is accumulated too much after a long time.
The cleaning ability is poor by using a cleaning agent purchased daily, and the cleaning agent cannot flow into the sea and the greasy dirt is discharged into the sea by special care. At present, the global environmental protection awareness is getting stronger, particularly, the marine monitoring system in China is stronger, once pollutants appear in the sea, the pollutants can be found quickly, and the troublemakers are also punished severely.
Therefore, there is an urgent need for a cleaning agent or a cleaning method that can simply and rapidly clean crude oil on an oil drilling platform without contaminating seawater.
Disclosure of Invention
The invention aims to provide a cleaning agent for an oil drilling platform, which can clean crude oil of the oil drilling platform more quickly and better and is not easy to pollute seawater.
The above object of the present invention is achieved by the following technical solutions: the oil drilling platform cleaning agent comprises the following components in parts by weight:
5-8 parts of inorganic base
3-8 parts of monocarboxylic acid and succinic acid
3-5 parts of polyether surfactant
60-70 parts of water
Wherein the ratio of the weight part of the inorganic base to the weight part of the polyether surfactant is more than 1.3;
the weight parts of the monocarboxylic acid and the succinic acid are both more than 1 part, and the weight parts of the monocarboxylic acid and the succinic acid are both less than the weight parts of the inorganic base.
By adopting the technical scheme, the monocarboxylic acid and the succinic acid can be subjected to neutralization reaction with the inorganic base to respectively form the monocarboxylic acid salt and the succinic acid salt, and researches show that the monocarboxylic acid salt and the succinic acid salt can be adsorbed on the surface of steel to form a layer of protective film, so that the protective film has a short-time protective effect on the surface of the steel, has no corrosion effect on the steel structure of an oil drilling platform in the cleaning process, and has a good crude oil cleaning effect; in addition, the monocarboxylic acid and the succinic acid also have certain solubilization function. The polyether surfactant has good cleaning and dispersing effects in the invention.
Experiments show that the components of the cleaning agent have good solubility at normal temperature, and the solution is not separated; and the crude oil is also good in solubility after being heated, and after the mixed liquid for dissolving the crude oil is collected and cooled to room temperature, the crude oil can be separated from the cleaning agent, so that the cleaning agent and the crude oil can be conveniently recovered, the repeated utilization of the cleaning agent and the recovery and utilization of the crude oil are realized, and the energy-saving and environment-friendly effects are achieved.
The foam prepared from the components and the proportion is not too much, so that the cleaning and the recovery are more convenient.
The invention is further configured to: the sum of the weight parts of the monocarboxylic acid and the succinic acid is more than the weight part of the polyether surfactant.
By adopting the technical scheme, experiments show that the mixture ratio of the cleaning agent is good in stability, better in cleaning effect and better in recovery condition.
The invention is further configured to: the HLB value of the polyether surfactant is 10-11.
By adopting the technical scheme, the invention uses water as a solvent, is more environment-friendly, has relatively low cost, and can influence the dissolution speed of the polyether surfactant even whether the polyether surfactant is completely dissolved or not due to too low HLB value; the solubility of the crude oil is reduced due to the overhigh HLB value, the time required for cleaning is prolonged, and a large number of experiments show that when the HLB value is 10-11, the water solubility of the polyether surfactant and the water is better, the solubility of the polyether surfactant to the crude oil is also good after heating, and the cleaning time is shorter; the polyether surfactant foam is not too much, and the recovery is more convenient.
The invention is further configured to: the polyether surfactant is one or the combination of more than two of LF221, LF305 and LF 403.
By adopting the technical scheme, LF221, LF305 and LF403 are relatively low-foam nonionic surfactants, so that the cleaning use and recovery are more convenient; strong alkali resistance can be realized, and the cleaning effect cannot be influenced by decomposition when the cleaning agent is applied to the cleaning agent; and the three surfactants have high washing, wetting and dirt dispersing capabilities, and have strong crude oil cleaning capability when being applied to the invention. The other three are all environment-friendly reagents and are more environment-friendly.
Especially, LF305 and LF403 have better stability and stronger cleaning capability.
The invention is further configured to: the monocarboxylic acid may be either or both isononanoic acid and isooctanoic acid.
By adopting the technical scheme, experiments show that the isononanoic acid or isooctanoic acid has moderate molecular weight, can be dissolved in water, can form an oil film with a certain thickness on the surface of a steel structure, and has better protection effect.
The invention also aims to provide a preparation method of the petroleum drilling platform cleaning agent, which is simple, can prepare the cleaning agent which can clean the crude oil of the petroleum drilling platform more quickly and better and is not easy to pollute seawater.
The second aim of the invention is realized by the following technical scheme: the preparation method of the cleaning agent for the oil drilling platform comprises the following steps:
s1, adding inorganic base into water, adding monocarboxylic acid and succinic acid, and mixing uniformly;
and S2, adding the polyether surfactant and mixing uniformly.
By adopting the technical scheme, the inorganic base is firstly added into the water, the inorganic base is quickly dissolved, the water temperature is increased, and the monocarboxylic acid and the succinic acid are added for neutralization reaction, so that the reaction is quicker, and the time cost is favorably reduced; and adding a polyether surfactant for better dissolution after the neutralization reaction is finished.
The invention is further configured to: and (3) neutralizing the S1 inorganic base with monocarboxylic acid and succinic acid, and adding a polyether surfactant after the surface of the product has no suspension oil.
By adopting the technical scheme, the neutralization reaction on the surface is complete after no suspension oil exists on the surface, and the hospital carboxylic acid or succinic acid is not excessive, so that the polyether surfactant is added to dissolve more quickly.
The invention aims to provide a using method of the cleaning agent for the oil drilling platform, which is simple in using method, can clean crude oil of the oil drilling platform more quickly and better, and is not easy to pollute seawater.
The third object of the invention is realized by the following technical scheme: the use method of the oil drilling platform cleaning agent comprises the following steps:
step 1, diluting the cleaning agent in the scheme by water, and heating to 50-60 ℃;
and 3, sucking the cleaning agent and the softened petroleum crude oil into a recovery device while the cleaning agent and the softened petroleum crude oil are hot.
By adopting the technical scheme, the cleaning agent can be diluted by seawater at the back, the transportation is convenient at the early stage, and the cleaning agent with proper concentration can be added according to the crude oil quantity on the oil drilling platform, so that the cleaning effect is better; the cleaning agent can soften the crude oil more quickly after being heated, the crude oil is dissolved, and the cleaning efficiency is higher.
The cleaning effect is better when the cleaning agent is sprayed while hot, the mixed liquid of the cleaning agent and the crude oil is more conveniently recovered while hot, and the cleaning agent and the crude oil are more conveniently and respectively recovered after being separated after cooling.
The invention is further configured to: the spraying pressure in the step 2 is 0.5-1 MPa.
Through adopting above-mentioned technical scheme, the cleaner that sprays has certain pressure, can make the cleaner faster permeate the bottom of crude oil, and the cleaning performance is better, and clean efficiency is also higher.
The invention is further configured to: and 3, cooling the cleaning agent recovered in the step 3 and the softened petroleum crude oil, layering the cleaning agent and the petroleum crude oil, recovering the petroleum crude oil, and recycling the cleaning agent.
By adopting the technical scheme, the cleaning agent can be recovered, does not pollute seawater, and can reduce the cost; the crude oil is recycled, so that the energy is saved and the environment is protected.
The invention also aims to provide the cleaning system for the oil drilling platform, which is matched with the cleaning agent for the oil drilling platform in the scheme, so that the oil drilling platform can be cleaned more quickly and efficiently, and the cleaning efficiency is improved.
The fourth object of the invention is realized by the following technical scheme: a cleaning system for an oil drilling platform comprises a liquid containing device for containing a cleaning agent for the oil drilling platform in the scheme, and a sprinkler head communicated with the liquid containing device, wherein a heating device is arranged on a pipeline communicated with the liquid containing device and the sprinkler head; the cleaning brush is used for cleaning crude oil and the recovery device is used for recovering the cleaning agent and the crude oil mixed liquid.
By adopting the technical scheme, the liquid containing device is heated by the heating device and then sprayed out by the spraying head, so that crude oil can be quickly softened and dissolved, and the cleaning and softening of the cleaning brush are faster; the softened and dissolved crude oil and the cleaning agent are sucked into a recovery device together, and can be respectively recovered after being cooled, so that the operation is simple and convenient.
In conclusion, the beneficial technical effects of the invention are as follows:
1. according to the invention, both the monocarboxylic acid and the succinic acid can be subjected to neutralization reaction with the inorganic base to respectively form the monocarboxylic acid salt and the succinic acid salt, and researches show that the monocarboxylic acid salt and the succinic acid salt can be adsorbed on the surface of steel to form a layer of protective film, so that the protective film has a short-time protective effect on the surface of the steel, the steel structure of an oil drilling platform is not corroded in the cleaning process, and the crude oil cleaning effect is good; in addition, the monocarboxylic acid and the succinic acid also have certain solubilization function. The polyether surfactant has good cleaning and dispersing effects in the invention.
2. Experiments show that the components of the cleaning agent have good solubility at normal temperature, and the solution is not separated; and the crude oil is also good in solubility after being heated, and after the mixed liquid for dissolving the crude oil is collected and cooled to room temperature, the crude oil can be separated from the cleaning agent, so that the cleaning agent and the crude oil can be conveniently recovered, the repeated utilization of the cleaning agent and the recovery and utilization of the crude oil are realized, and the energy-saving and environment-friendly effects are achieved. The components and the proportion of the foam adopted by the invention are not too much, so that the cleaning and the recovery are more convenient.
3. The cleaning agent can be diluted by seawater at the back, the transportation is convenient at the early stage, and the cleaning agent with proper concentration can be mixed according to the crude oil quantity on the oil drilling platform, so that the cleaning effect is better; the cleaning agent can soften the crude oil more quickly after being heated, the crude oil is dissolved, and the cleaning efficiency is higher. The cleaning effect is better when the cleaning agent is sprayed while hot, the mixed liquid of the cleaning agent and the crude oil is more conveniently recovered while hot, and the cleaning agent and the crude oil are more conveniently and respectively recovered after being separated after cooling.
4. The liquid containing device is heated by the heating device and then sprayed out by the spraying head, so that crude oil can be quickly softened and dissolved, and the cleaning and softening of the cleaning brush are faster; the softened and dissolved crude oil and the cleaning agent are sucked into a recovery device together, and can be respectively recovered after being cooled, so that the operation is simple and convenient.
Drawings
FIG. 1 is a schematic structural diagram of an oil drilling platform cleaning system
In the figure: 1. a liquid containing device; 2. a sprinkler head; 3. a heating device; 4. cleaning with a brush; 5. a recovery device; 51. and (7) recovering the pipe.
Detailed Description
The oil drilling platform cleaning agent comprises the following components in parts by weight:
5-8 parts of inorganic base
3-8 parts of monocarboxylic acid and succinic acid
3-5 parts of polyether surfactant
60-70 parts of water
Wherein the ratio of the weight part of the inorganic base to the weight part of the polyether surfactant is more than 1.3;
the weight parts of the monocarboxylic acid and the succinic acid are both more than 1 part, and the weight parts of the monocarboxylic acid and the succinic acid are both less than the weight parts of the inorganic base.
The sum of the parts by weight of monocarboxylic acid and succinic acid is preferably greater than the part by weight of polyether surfactant. The preferable HLB value of the polyether surfactant is 10-11, and the polyether surfactant is one or the combination of more than two of LF221, LF305 and LF 403. The preferred monocarboxylic acid may be either or both isononanoic acid or isooctanoic acid.
The preparation method of the cleaning agent for the oil drilling platform comprises the following steps:
s1, adding inorganic base into water, adding monocarboxylic acid and succinic acid, and mixing uniformly;
and S2, adding the polyether surfactant and mixing uniformly.
And (3) neutralizing the S1 inorganic base with monocarboxylic acid and succinic acid, and adding a polyether surfactant after the surface of the product has no suspension oil.
The use method of the oil drilling platform cleaning agent comprises the following steps:
step 1, diluting the cleaning agent in the scheme by water, and heating to 50-60 ℃;
and 3, sucking the cleaning agent and the softened petroleum crude oil into a recovery device while the cleaning agent and the softened petroleum crude oil are hot.
The preferred pressure for spraying in step 2 is 0.5-1 MPa. The volume ratio of the cleaning agent to the water is 1 (15-20) during dilution.
Preferably, after the cleaning agent recovered in the step 3 and the softened petroleum crude oil are cooled, the cleaning agent and the petroleum crude oil are layered, the petroleum crude oil is recovered, and the cleaning agent is recycled.
The present invention is further illustrated in detail below with reference to tables and examples.
The oil drilling platform cleaning agent comprises the following components in parts by weight:
in addition, the formula also comprises 65 parts of water, and the parts of the water can be adjusted along with the ambient temperature so as to dissolve other components.
Example 8
An oil drilling platform cleaning agent, example 8 differs from example 3 in that sodium hydroxide is replaced by potassium hydroxide.
Example 9
An oil drilling platform cleaning agent, example 9 is different from example 3 in that LF305 is replaced by LF 403.
Example 10
An oil drilling platform cleaning agent, example 10 and example 3 are different in that LF305 is replaced by a mixture of LF403 and LF305, and the weight ratio of LF403 to LF305 is 1: 1.
Example 11
An oil drilling platform cleaning agent, example 10 differs from example 3 in that isononanoic acid is replaced with isooctanoic acid.
The preparation method of the cleaning agent comprises the following steps:
s1 adding inorganic base into water, adding monocarboxylic acid and succinic acid, mixing uniformly, and neutralizing inorganic base with monocarboxylic acid and succinic acid until no suspension oil exists on the surface;
s2 is mixed evenly, no suspension oil is left on the surface, and then polyether surfactant is added and mixed evenly.
The use method of the cleaning agent for cleaning crude oil on the surface of a steel structure and the oil drilling platform by using the cleaning agent prepared in the examples 1-11 and the comparative examples 1-13 comprises the following steps:
step 1, diluting the cleaning agent in the above examples or comparative examples by 20 times with water, and heating to 50-60 ℃;
and 3, sucking the cleaning agent and the softened petroleum crude oil into a recovery device while the petroleum crude oil is hot, cooling the recovered cleaning agent and the softened petroleum crude oil, layering the cleaning agent and the petroleum crude oil, recovering the petroleum crude oil, and recycling the cleaning agent.
The cleaning agents prepared in the examples 1 to 11 and the comparative examples 1 to 13 are tested for stability, cleaning effect and repeated use after recovery, wherein the stability refers to that whether the cleaning agent has a layering phenomenon is observed after all the components are mixed, and the cleaning agent is an unstable cleaning agent which has an obvious layering phenomenon in one day after being prepared; the cleaning effect is that the cleaning agent is used for cleaning the crude oil on the surface of the steel structure under the same condition, and whether the crude oil residue exists on the surface of the steel structure is observed after the cleaning; the condition that the cleaning agent is recycled and reused after being recovered refers to the condition that the cleaning agent is recovered after crude oil and the cleaning agent are layered after being cleaned once, and then water is added to dilute and stir evenly, and then the mixture is kept stand for 6 hours to observe whether the layering phenomenon exists or not. The specific test results are as follows:
as is clear from the test results of the above table, the weight parts of NaOH are 5 to 8, the weight parts of LF305 are 3 to 5, the weight parts of succinic acid are 1 to 3, the weight parts of isononanoic acid are 1 to 5 in examples 1 to 7, and the ratio of the weight parts of the inorganic base to the weight parts of the polyether surfactant is more than 1.3; the weight parts of the monocarboxylic acid and the succinic acid are both more than 1 part, and the weight parts of the monocarboxylic acid and the succinic acid are both less than the weight parts of the inorganic base, so that the prepared cleaning agent has good stability, good cleaning capability and no obvious crude oil residue, in particular in examples 2-7, and no obvious layering phenomenon is caused after the cleaning agent is diluted by adding water after being recovered. The cleaning ability of example 3 and example 7 is particularly outstanding, and the cleaning surface is completely free of crude oil residue.
Example 8 the sodium hydroxide in example 3 was replaced with potassium hydroxide; example 9 LF305 in example 3 was replaced with LF 403; example 10 LF305 from example 3 was replaced with a mixture of LF403 and LF305, with the weight ratio of LF403 to LF305 being 1: 1; in the embodiment 11, the isononanoic acid in the embodiment 3 is replaced by the isooctanoic acid, so that the stability, the cleaning capability and the recovery condition of the cleaning agent are not obviously influenced, and the comprehensive indexes are good.
In comparative examples 2 and 4, LF305 is not added, so that the prepared cleaning agent has good stability but completely has no cleaning capability, and is easy to stratify after being recovered and diluted by adding water and is not adopted; the comparative examples 1, 5, 6 and 8 are not added with succinic acid, the prepared cleaning agent has poor stability and cleaning capability and large-area crude oil residue, the comparative examples 1 and 5 are diluted by water after being recovered and quickly delaminated, and the bottom layer has more oil, so the comparative example 8 is not subjected to a recovery test; in the comparative example 3, LF305 and succinic acid are not added, the prepared cleaning agent has good stability, but has no cleaning capability at all, and is easy to stratify after being diluted by adding water after being recovered and is not adopted; in comparative example 7, isononanoic acid is not added, the prepared cleaning agent has poor stability and cleaning capability, and large-area crude oil residue exists, so that the recovery test is not carried out in comparative example 7; comparative example 9, in which neither isononanoic acid nor succinic acid was added, produced a cleaning agent having poor stability, poor cleaning ability, and large-area crude oil residue, and thus comparative example 9 was not subjected to the recovery test. In the comparative example 10, the weight parts of sodium hydroxide and LF305 are the same, the prepared cleaning agent has poor stability and cleaning capability, and large-area crude oil residues exist, so that the recovery test is not carried out in the comparative example 10; in comparative example 11, the ratio of sodium hydroxide to LF305 was 1.3 by weight, and the resulting cleaning agent was poor in stability and cleaning ability, and had large crude oil residue, so comparative example 11 was not tested for recovery. In the comparative example 12, the ratio of the weight parts of the sodium hydroxide to the weight parts of the LF305 is 1.25, the weight parts of the sodium hydroxide are equal to the weight parts of the isononanoic acid, the prepared cleaning agent has poor stability and cleaning capability and large-area crude oil residue, water is added for dilution after recovery to quickly stratify, and the bottom oil is more and is not used; in comparative example 13, the LF305 is small in weight part and only 1 part, the prepared cleaning agent is good in stability, but poor in cleaning capability and obvious in crude oil residue, water is added for dilution after recovery to slowly stratify, and the bottom oil is small in quantity and is not suitable for popularization and application.
In addition, the cleaning agents prepared in examples 1 to 11 were left for one week without significant delamination.
Example 12
The use method of the cleaning agent for the oil drilling platform, the example 12 and the use method of the example 3 are different in that the step 2 is not sprayed under pressure, the dispersibility of crude oil is not good in the cleaning process, and the cleaning time is prolonged by at least 50%.
Example 13
A cleaning system for an oil drilling platform comprises a liquid containing device 1 for containing a cleaning agent for the oil drilling platform, and a spray head 2 communicated with the liquid containing device 1 through a pipeline, wherein a heating device 3 is arranged on the pipeline communicated with the liquid containing device 1 and the spray head 2; still including being used for cleaning the brush cleaner 4 of crude oil and being used for retrieving recovery unit 5 of cleaner and crude oil mixed liquid, the position intercommunication of brush cleaner 4 connection installation department has recovery tube 51, and recovery tube 51 can be with cleaner and crude oil mixed liquid suction recovery unit 5 in, the recovery of being more convenient for. The liquid containing device 1 is heated by the heating device 3 and then sprayed out by the spraying head 2, so that crude oil can be quickly softened and dissolved, and the cleaning and softening of the cleaning brush 4 are faster; the softened and dissolved crude oil and the cleaning agent are sucked into the recovery device 5, and can be respectively recovered after being cooled, so that the operation is simple and convenient.
Claims (10)
1. The cleaning agent for the oil drilling platform is characterized by comprising the following components in parts by weight:
5-8 parts of inorganic base
3-8 parts of monocarboxylic acid and succinic acid
3-5 parts of polyether surfactant
60-70 parts of water
Wherein the ratio of the weight part of the inorganic base to the weight part of the polyether surfactant is more than 1.3;
the weight parts of the monocarboxylic acid and the succinic acid are both more than 1 part, and the weight parts of the monocarboxylic acid and the succinic acid are both less than the weight parts of the inorganic base.
2. The oil drilling platform cleaning agent as set forth in claim 1, wherein the sum of the parts by weight of the monocarboxylic acid and the succinic acid is larger than the part by weight of the polyether surfactant.
3. The cleaning agent for the oil drilling platform as claimed in claim 1, wherein the polyether surfactant is one or a combination of more than two of LF221, LF305 and LF 403.
4. The cleaning agent for oil drilling platform as defined in claim 1, wherein the monocarboxylic acid is either isononanoic acid or isooctanoic acid or both.
5. The method for preparing the oil drilling platform cleaning agent according to any one of claims 1 to 4, which is characterized by comprising the following steps:
s1, adding inorganic base into water, adding monocarboxylic acid and succinic acid, and mixing uniformly;
and S2, adding the polyether surfactant and mixing uniformly.
6. The preparation method of the oil drilling platform cleaning agent as claimed in claim 5, wherein the S1 inorganic base is neutralized with monocarboxylic acid and succinic acid, and then the polyether surfactant is added after the surface has no suspension oil.
7. The use method of the oil drilling platform cleaning agent as set forth in any one of claims 1 to 4, characterized by comprising the steps of:
step 1, diluting a cleaning agent with water and heating to 50-60 ℃;
step 2, spraying the softened petroleum crude oil to a place to be cleaned while the petroleum crude oil is hot;
and 3, sucking the cleaning agent and the softened petroleum crude oil into a recovery device while the cleaning agent and the softened petroleum crude oil are hot.
8. The use method of the oil drilling platform cleaning agent as claimed in claim 7, wherein the spraying pressure in the step 2 is 0.5-1 MPa.
9. The use method of the petroleum drilling platform cleaning agent as claimed in claim 7, wherein the cleaning agent recovered in the step 3 and the softened petroleum crude oil are cooled and then layered with the petroleum crude oil, the petroleum crude oil is recovered, and the cleaning agent is recycled.
10. An oil drilling platform cleaning system is characterized by comprising a liquid containing device (1) for containing the oil drilling platform cleaning agent as set forth in any one of claims 1 to 4, a spraying head (2) communicated with the liquid containing device (1), and a heating device (3) arranged on a pipeline communicated with the liquid containing device (1) and the spraying head (2); the device also comprises a cleaning brush (4) for cleaning the crude oil and a recovery device (5) for recovering the mixed liquid of the cleaning agent and the crude oil.
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| CN201811556832.6A CN111334378A (en) | 2018-12-19 | 2018-12-19 | Cleaning agent, preparation, use and cleaning system for oil drilling platform |
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| CN201811556832.6A CN111334378A (en) | 2018-12-19 | 2018-12-19 | Cleaning agent, preparation, use and cleaning system for oil drilling platform |
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