CN103820232A - Filtering material cleaning agent for oilfield sewage filtering system - Google Patents
Filtering material cleaning agent for oilfield sewage filtering system Download PDFInfo
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- CN103820232A CN103820232A CN201410028664.9A CN201410028664A CN103820232A CN 103820232 A CN103820232 A CN 103820232A CN 201410028664 A CN201410028664 A CN 201410028664A CN 103820232 A CN103820232 A CN 103820232A
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Abstract
The invention discloses a filtering material cleaning agent for an oilfield sewage filtering system. The filtering material cleaning agent comprises the following raw materials by mass percent: 8 to 15% of nonyl phenol polyoxyethylene ether, 5 to 10% of fatty alcohol polyoxyethylene ether, 8 to 15% of natrium hydroxide, 8 to 15% of hydrogen dioxide, 1 to 5% of triethanolamine, and the balance amount of water. Oil is replaced with the water in water-based cleaning agent of the invention so that the cleaning agent has the advantages of high efficiency, low consumption, no combustion, no volatilization, pollution abatement and the like; the cleaning agent has a favorable low-temperature adaptive performance, and the cleaning agent can be used at 20 to 40 DEG C; the cleaning agent has a favorable cleaning performance, and cleaning oil eliminating rate can reach more than 95% under the condition of 5% to 10% of mass percent. Field control is simple, and use concentration can be in self-acting control according to actual cleaning effects.
Description
Technical field
The present invention relates to filtrate clean-out system, specifically, is a kind of filtrate clean-out system for oilfield sewage filtering system.
Background technology
Sewage treatment system of oilfield generally adopts 1～2 grade of filtering system, and because oil-field development is in the middle and later periods, Produced Liquid water content is up to 90%, and filtering system is generally loaded heavier, and therefore the cleaning of filtrate and regeneration are to guarantee sewage disposal important factor up to standard.Limited by field condition, the cleaning of filtrate adopts normal temperature operation more, therefore develops that the water base filtrate clean-out system of high-performance normal temperature is up to standard to sewage disposal, save energy, reduction energy consumption, protection of the environment be most important.
Summary of the invention
Technical problem to be solved by this invention is, provide a kind of with water for oil, there is efficient, low consumption, do not burn, non-volatile, the filtrate clean-out system for oilfield sewage filtering system that reduces the advantages such as pollution.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of filtrate clean-out system for oilfield sewage filtering system, comprises the raw material of following mass percent:
Polyoxyethylene nonylphenol ether 8-15%
Fatty alcohol-polyoxyethylene ether 5-10%
Sodium hydroxide 8-15%
Hydrogen peroxide 8-15%
Trolamine 1-5%
Surplus is water.
Preferably, comprise the raw material of following mass percent:
Polyoxyethylene nonylphenol ether 10%
Fatty alcohol-polyoxyethylene ether 5%
Sodium hydroxide 10%
Hydrogen peroxide 10%
Trolamine 3%
Surplus is water.
The invention has the beneficial effects as follows: aqueous cleaning agent for oil, has efficient, low consumption with water, do not burn, non-volatile, reduce the advantages such as pollution, there is good low-temperature adaptation performance, all can use at 20～40 ℃.There is good cleaning performance, at massfraction 5%～10%, can guarantee that cleaning oil removal rate reaches more than 95%.Field management is simple, can control voluntarily working concentration according to actual cleaning performance.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail:
Filtrate clean-out system for oilfield sewage filtering system of the present invention, comprises the raw material of following mass percent:
Polyoxyethylene nonylphenol ether 8-15%
Fatty alcohol-polyoxyethylene ether 5-10%
Sodium hydroxide 8-15%
Hydrogen peroxide 8-15%
Trolamine 1-5%
Surplus is water.
Preferably, comprise the raw material of following mass percent:
Polyoxyethylene nonylphenol ether 10%
Fatty alcohol-polyoxyethylene ether 5%
Sodium hydroxide 10%
Hydrogen peroxide 10%
Trolamine 3%
Surplus is water.
Generally, the dirt that is adsorbed in filter material surface is made up of chemical agents such as greasy dirt, suspended impurity, bacterium and product thereof, Iron sulfuret, ferric oxide, incrustation scale and polymkeric substance used for tertiary oil recovery.
The cleaning process of filter material surface is a complexity, comprehensive physical and chemical process.Clean-out system is between filtrate and dirt interface, by soaking, disperse, dissolve, crispatura, the effect such as emulsification, chelating, saponification, increase the auxiliary exhibition coefficient between dirt and scavenging solution surface, thereby make dirt be peeled off and be suspended in cleaning solution, reach cleaning object.
Nonionogenic tenside has soda acid adaptability and excellent greasy dirt cleaning performance widely, thereby becomes the first-selection of tensio-active agent in aqueous cleaning agent formula.But the existence of Cloud Points of Nonionic Surfactants, has limited to its use temperature scope.Only near cloud point temperature, nonionogenic tenside competence exertion optimal clean usefulness.Therefore the emphasis of developing normal temperature washing agent is just to find the nonionogenic tenside of cloud point at normal temperature scope (20～25 ℃).Meanwhile, due to adding of cleaning additive (especially salt series products), can further reduce the actual cloud point of tensio-active agent, therefore can guarantee that clean-out system normally brings into play cleaning performance at normal temperatures, meet actual operation requirements.
For improving and strengthening clean-out system over-all properties, need composite interpolation dispersing auxiliary, water-based antirust etc.Clean-out system main raw material of the present invention and performance are in table 1
Table 1 clean-out system main raw material and performance
Embodiment 1
According to proportioning below, take raw material, mix the filtrate clean-out system obtaining for oilfield sewage filtering system:
8 kilograms of polyoxyethylene nonylphenol ethers
5 kilograms of fatty alcohol-polyoxyethylene ether
8 kilograms, sodium hydroxide
8 kilograms of hydrogen peroxide
1 kilogram of trolamine
70 kilograms, water.
Embodiment 2
According to proportioning below, take raw material, mix the filtrate clean-out system obtaining for oilfield sewage filtering system:
15 kilograms of polyoxyethylene nonylphenol ethers
10 kilograms of fatty alcohol-polyoxyethylene ether
15 kilograms, sodium hydroxide
15 kilograms of hydrogen peroxide
5 kilograms of trolamines
40 kilograms, water.
Embodiment 3
According to proportioning below, take raw material, mix the filtrate clean-out system obtaining for oilfield sewage filtering system:
10 kilograms of polyoxyethylene nonylphenol ethers
5 kilograms of fatty alcohol-polyoxyethylene ether
10 kilograms, sodium hydroxide
10 kilograms of hydrogen peroxide
3 kilograms of trolamines
62 kilograms, water.
The product obtaining with embodiment 3 below makes a service test:
Performance Detection experiment is the conventional walnut shell filtering material of Henan Oil Field with material, and specification is particle diameter 0.8～1.5mitt, and the oil product that ageing-resistant experiment is used is the two rivers of Henan Oil Field joint station processing crude oil.
1. the raw energy of stable-l
Carry out with reference to high low temperature stability test standard in JB/T4323.1-1999, particular content and result are as follows.Room temperature stability: place 7d under room temperature, observe solution state.
Experimental result: stable, without layering.
High-temperature stability: 50 mL stostes are placed in to 50 mL tool plug graduated cylinders, put after jumping a queue in 60 ± 2 ℃ of water-baths of people, after 6h, take out the inspection of graduated cylinder cool to room temperature, and investigate the cleaning of the rear stoste of high temperature experiment.
Experimental result: stable, without layering; Cleaning performance is confirmed unchanged after experiment.
Low-temperature stability: the stoste after high temperature experiment is put in people's cryogenic refrigerator, keep, after 1h, taking out graduated cylinder in one 18 ± 3 ℃, return to room temperature and keep after l h until test solution, test solution is toppled over to 5 times and observe; And be positioned under different low temperature, determine the freezing point of solution, the cleaning of stoste after investigation low temperature test.Experimental result: place after 1h, solution is not stratified, after toppling over not do the front state of experiment identical; Cleaning performance is unchanged through experimental verification.
2. cleaning performance
Under room temperature (25 ℃) condition, the scavenging solution of preparation 20L massfraction 5%, carries out respectively backwash, dipping experiment, uses spectrophotometric determination oil removal rate, and experimental result is in table 2, table 3.
Table 2 backwash experiment test oil removal rate
| Backwash time/min | 3 | 5 | 8 |
| Oil removal rate/% | 90 | 98 | 100 |
Table 3 floods experiment test oil removal rate
| Dipping time/min | 8 | 10 | 15 |
| Oil removal rate/% | 80 | 90 | 97 |
3. ageing-resistant performance
Filtrate in experimental installation is installed, at the scavenging solution of the lower preparation of laboratory temperature (25 ℃) 20 L massfractions 5%, and add therein successively crude oil, carry out backwash cleaning.Former oil content adds for 4 times, and each add-on is 20g.Often add i time, after circulation 2h, test again oil removal rate.3,5,10,15min when each test oil removal rate, while setting respectively 4, ask a little,, record the oil removal rate of each time point.The results are shown in Table 4.
Table 4 ageing-resistant performance experimental result
When scavenging solution oleaginousness is below 3g/L time, working fluid is in stable condition, and experiment material oil removal rate all can reach requirement.In the time that solution oleaginousness is 4g/L, work stoste is lost cleansing power substantially, illustrates with this understanding, and scavenging solution should be abandoned, and need again prepare.
4. the scavenging solution of foaming properties preparation 1000mL massfraction 5%, is preheated to 30 ± 2 ℃.Pipette 100ml scavenging solution and pour in tool plug graduated cylinder, make liquid level apart from the about 7cm in tube plug lower surface.After capping plug, in the baking oven of 30 ± 2 ℃, place 10min, the I min that fluctuates immediately after taking-up, shake distance is about 40cm, 100～ll0 time/min of frequency.After shake, open plug tube, the baking oven that graduated cylinder is placed in to 30 ± 2 ℃ leaves standstill 10min, observes lather collapse situation, writes down residual foam height.Foam is highly 3.5cm immediately, and after 10min, foam height is 0.65cm, belongs to low-foam detergent.In JB/T4323.I1999, stipulate, after the standing 10min of test fluid, foam height≤1.0cm is low-foam detergent.
5. physical and chemical inspection index
The normal temperature filtrate clean-out system of development is middle low alkalinity product, and concrete physical and chemical index is in table 6.
Table 6 clean-out system physical and chemical index
6. on-the-spot service condition
For further confirming the actual Practical Performance of product, select client to carry out rig-site utilization.The on-the-spot massfraction that uses scavenging solution is 5%, and working temperature is normal temperature (20-40 ℃), through station, CNOOC Jinzhou, the use such as Henan Oil Field joint station, rivers joint station, peace canopy station, precious unrestrained joint station, has all obtained satisfied effect.Practical using result proves, this product has following clear superiority.
(1) the low foam of low temperature.Even use the excessive phenomenon of foam can not occur yet in stirring-type backwash.
(2) efficient degreasing.Owing to adopting special surfactant, greatly improve oil removal efficiency, backwash 10min can complete oil removing.
(3) good matching capacity.This product carries out normal temperature and cleans oil removing, and corrosion rate is low, little to subsequent disposal systematic influence.
(4) excellent economy.Low temperature, low proportioning working concentration, greatly reduce production cost, improved economic benefit.
(5) feature of environmental protection.Have use temperature low, the feature such as proportioning is low, non-volatile, effectively safeguards and has improved execute-in-place environment.
Above-described embodiment is only for illustrating technological thought of the present invention and feature, its object is to make those skilled in the art can understand content of the present invention and implement according to this, can not only limit the scope of the claims of the present invention with the present embodiment, be equal variation or the modification that all disclosed spirit is done, still drop in the scope of the claims of the present invention.
Claims (2)
1. for a filtrate clean-out system for oilfield sewage filtering system, it is characterized in that, comprise the raw material of following mass percent:
Polyoxyethylene nonylphenol ether 8-15%
Fatty alcohol-polyoxyethylene ether 5-10%
Sodium hydroxide 8-15%
Hydrogen peroxide 8-15%
Trolamine 1-5%
Surplus is water.
2. the filtrate clean-out system for oilfield sewage filtering system according to claim 1, is characterized in that, comprises the raw material of following mass percent:
Polyoxyethylene nonylphenol ether 10%
Fatty alcohol-polyoxyethylene ether 5%
Sodium hydroxide 10%
Hydrogen peroxide 10%
Trolamine 3%
Surplus is water.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104531380A (en) * | 2014-12-09 | 2015-04-22 | 孟红琳 | Preparation method of wax removing cleaning agent for oil field oil pumping pipeline |
| CN104745315A (en) * | 2015-02-09 | 2015-07-01 | 西安华诺石油技术开发有限公司 | Filter material back-flushing agent and preparation method thereof |
| CN105733856A (en) * | 2014-12-10 | 2016-07-06 | 中国石油天然气股份有限公司 | A cleaning agent for petroleum sulfonate coked materials |
| CN106929165A (en) * | 2017-03-03 | 2017-07-07 | 安徽欣创节能环保科技股份有限公司 | A kind of cleaning agent and cleaning method for being applied to hot rolling sewage circulating high rate filter |
| CN108949383A (en) * | 2017-05-17 | 2018-12-07 | 东曹株式会社 | Cleansing composition and the cleaning method for using it |
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| CN101760345A (en) * | 2010-01-15 | 2010-06-30 | 扬州工业职业技术学院 | Deposited carbon cleaning agent for internal-combustion engine |
| CN102363739A (en) * | 2010-12-14 | 2012-02-29 | 深圳车仆汽车用品发展有限公司 | Carbon deposit scavenging agent for combustion chamber and spark plug, and preparation method of the same |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1919993A (en) * | 2005-08-23 | 2007-02-28 | 穆世民 | High effective environmental protection multifunctional deoiling decontaminant |
| CN101760345A (en) * | 2010-01-15 | 2010-06-30 | 扬州工业职业技术学院 | Deposited carbon cleaning agent for internal-combustion engine |
| CN102363739A (en) * | 2010-12-14 | 2012-02-29 | 深圳车仆汽车用品发展有限公司 | Carbon deposit scavenging agent for combustion chamber and spark plug, and preparation method of the same |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104531380A (en) * | 2014-12-09 | 2015-04-22 | 孟红琳 | Preparation method of wax removing cleaning agent for oil field oil pumping pipeline |
| CN104531380B (en) * | 2014-12-09 | 2017-10-20 | 侯琳 | A kind of preparation method of paraffin removal cleaning agent for oil pumping in oil fields pipeline |
| CN105733856A (en) * | 2014-12-10 | 2016-07-06 | 中国石油天然气股份有限公司 | A cleaning agent for petroleum sulfonate coked materials |
| CN104745315A (en) * | 2015-02-09 | 2015-07-01 | 西安华诺石油技术开发有限公司 | Filter material back-flushing agent and preparation method thereof |
| CN106929165A (en) * | 2017-03-03 | 2017-07-07 | 安徽欣创节能环保科技股份有限公司 | A kind of cleaning agent and cleaning method for being applied to hot rolling sewage circulating high rate filter |
| CN108949383A (en) * | 2017-05-17 | 2018-12-07 | 东曹株式会社 | Cleansing composition and the cleaning method for using it |
| CN108949383B (en) * | 2017-05-17 | 2021-05-25 | 东曹株式会社 | Cleaning agent composition and cleaning method using same |
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Application publication date: 20140528 |