RU2309979C1 - Detergent for surface cleaning from organic contaminants (variants) and uses thereof in cleaning of wells, pipelines, and containers from mineral oil deposition and scurf - Google Patents

Abstract

FIELD: oil-producing and oil-refining industry.

SUBSTANCE: in the first embodiment claimed detergent contains (mass %): neonol 0.5-4.0; syntamide-5 1-5; sodium metasilicate 8-15; sodium tripolyphosphate 8-15; trisodium phosphate 10-15; sodium polyphosphate 2-10; sodium hydrate 1-5; sodium carbonate 15-23; sodium sulfate up to 100. in the second embodiment detergent additionally contains complexing agent in amount of 1-3 mass %. Mass ratio of neonol/syntamide is 1:0.25-10.0/ Additionally detergent may contain defoaming agent in amount of 0.5 % or less. Cleaning method includes treatment of well, pipeline, or container heated up to 45-98°C with 0.3-3.0 % aqueous solution of abovementioned detergent.

EFFECT: decreased detergent consumption.

7 cl, 2 tbl, 1 ex

Description

The invention relates to technical detergents, namely, compositions of technical detergents, as well as to the technology for cleaning containers, tanks, tanks of oil vessels, pipelines, flushing wells and equipment in the oil and oil refining industry from mineral, oil, bitumen, tar , paraffin contaminants, and can also be used to clean equipment and surfaces from lubricants, such as graphite, and oils in machine-building enterprises.

Known detergents consisting of compositions of surfactants (hereinafter referred to as surfactants). For example, a detergent is known by A. with. USSR No. 410642, Cl. C 11 D 1/831, publ. 1972, containing soda ash, sodium tripolyphosphate, sodium metasilicate and a nonionic surfactant - di-tert-butylphenol polyethylene glycol ether (ML-51 preparation).

The disadvantages of this known detergent are its low washing ability and its stable stabilization of a portion of the washed contaminants in the volume of the working solution, which impairs its performance and makes it difficult to clean from organic contaminants, in particular oil products, before draining the working solutions into the sewer.

Known detergents for cleaning metal surfaces "TEMP-100" by A. with. USSR No. 644819 (publ. 1978), "TEMP-100D" by AS USSR No. 973607 (publ. 1980), detergent "OSA" according to as USSR No. 1004466 (publ. 1981), containing nonionic surfactants, sodium metasilicate, di- or trisodium phosphate, soda ash and a small amount of potassium salt of ethoxylated alkyl phenols of phosphoric acid.

Despite a satisfactory washing ability, the solutions of these products still retain significant amounts of contaminants in an emulsified state, which reduces the washing ability during washing due to the repeated deposition of contaminants on the surface being cleaned and does not allow the draining of spent solutions into the sewers without preliminary cleaning.

It is also known technical detergent for cleaning metal surfaces from oil and oil pollution according to the patent of the Russian Federation No. 2194748. This tool contains as a surfactant neonol AF _9-12 in an amount of 2.4-3.6 wt.%, Neonol AF _6-9 - 2.4-3.6 wt.%, 0.4-0.6 wt. % sodium salt of alkylbenzenesulfonic acid (sulfonol). Additionally, the specified detergent contains, wt.%: Soda ash - 51.0-64.0; sodium tripolyphosphate 13.0-28.0; trisodium phosphate 13.0-17.0.

The disadvantages of this tool include the high foaming and stability of the foam of aqueous solutions, which complicates its use in automatic washing installations and when washing (processing) oil wells by injecting a solution into them. In addition, the product poorly removes asphalt-bitumen and paraffin contaminants and is unsuitable for the preparation of working solutions on water of high hardness and highly mineralized (sea) water.

The prior art also known a number of detergents for cleaning metal surfaces according to RF patents No. 2079550 (publ. 1995) and No. 2132368 (publ. 1999) containing non-inogenic surfactants: neonol AF _9-12 and neonol AF _9-6 , sodium tripolyphosphate or trisodium phosphate and soda ash. These tools are a modification of the above analogue according to the patent of the Russian Federation No. 2194748.

The main disadvantages of these funds include a relatively low washing ability to organic contaminants, in particular to oil resinous compounds, to graphite lubricants and the inability to reuse the detergent.

It is also known detergent for cleaning a metal surface according to the patent of the Russian Federation No. 2277582, Cl. C11D 3/075, publ. 2006, containing, wt.%: A mixture of non-inorganic surfactants Berol-LFDzhi 61 (a mixture of ethoxylates of alcohols and alkyl glucoside) 0.5-1.0; trisodium phosphate 8.0-10; sodium polyphosphate 4.0-10.0; caustic soda 30.0-40.0 and soda ash up to 100.

It should be noted that this known detergent is a modification of the most trivial means for washing contaminants in metallurgy, engineering and the oil industry, when the cleaning operation was carried out using 40% caustic soda. The disadvantages of this well-known detergent are that it does not remove oil contaminants, graphite grease and asphaltene-resin-paraffin deposits (hereinafter referred to as ARPD) poorly, and also has high corrosion activity with respect to the surface being cleaned, which makes it very problematic to use it for washing technological equipment and containers and wells. In addition, expensive surfactants are included in the formulation of the known agent as surfactants, which, moreover, do not provide sufficient detergency and the duration of use of the solutions. At the same time, it should be noted that working with this product, including concentrated caustic soda (caustic soda) - a substance of the 2nd hazard class (hazardous substances), requires special measures to protect the skin, respiratory system and eyesight.

Closest to the proposed detergent for its intended purpose is a detergent for cleaning a metal surface according to the patent of the Russian Federation No. 229393, Cl. C11D 1/02, publ. 2005, which contains, wt.%: Ionogenic surfactant - synterol 10.0-12.0; sodium metasilicate 2.0-5.0; sodium tripolyphosphate or trisodium phosphate 15.0-20.0; bactericidal anti-corrosion additive 3.0-5.0; sodium carbonate (soda ash) up to 100.

However, the well-known tool poorly removes paraffin, characterized by low efficiency in highly saline water and high capacity of working solutions for oil products, which requires additional processing to clean them from these oil products.

To understand the nature of organic pollutants that can be encountered in oil production and refining, the following should be clarified. Oil is a complex mixture of paraffinic, cycloparaffinic and aromatic hydrocarbons, in which components with a wide range of properties are present. The extraction of oil contained in geological formations is often hampered by the presence of solid asphaltene sediments, which can be deposited together with waxy solids, forming asphaltene-tar-paraffin deposits (AFS). These solids tend to clog the pores of the oil reservoir in the near-wellbore zone, as well as clog the lift string, oilfield equipment and pipelines through which oil is pumped, and also settle on the walls of the tanks. As a result, there may be a decrease in well productivity, or a change in pumping parameters, or severe contamination of tanks with oil product sediments, often viscous.

There are various methods that can be used to remove sediments of petroleum products and their deposits (in the framework of this application, the term "sediment of petroleum products and their deposits" refers to residual films (residues of petroleum products), viscous formations of petroleum products and paraffin deposits), for example, mechanical methods (scraping) and chemical methods by treating wells, pipelines, tanks with various detergent compositions: hot oil (RF Patent No. 2095546, CL. E21B 37/06, publ. 1997), organic solvents (AS USSR No. 9200197, Cl. E21B 37/06, publ. 1982), technological water-soluble liquids based on surfactants (AS USSR No. 1789543, Cl. E21B 37/06, publ. 1993) and their various combinations.

However, these methods are not without drawbacks, namely: the use of oil is not always economically viable, because leads to the loss of valuable raw materials; when using organic solvents there is a high fire hazard; the use of well-known surfactant-based process fluids has a limitation in terms of processing conditions, namely, in the characteristics of wells or in the composition of paraffin deposits (for example, some surfactants are not compatible with highly saline waters that may be present in wells, pipelines, and in tanks, and do not provide dissolution precipitation of oil products and paraffin deposits of various chemical composition, etc.).

Closest to the proposed method for cleaning wells, pipelines and tanks from sediments of oil products and their deposits is the method described in the patent of the Russian Federation No. 2209937, Cl. E 21 B 37/06, publ. 2003, according to which a well or pipeline is treated with an aqueous solution of a 1-2% concentration of a washing reagent heated to not higher than 60 ° C, containing a powdered synthetic detergent (CMC), including at least 12 wt.% Surfactants, at least 10 , 5 wt.% Phosphate salts in terms of P ₂ About ₅ and not less than 2 wt.% Sodium silicate in terms of SiO ₂ , and a powdered technical detergent (TMS), including at least 4.5 wt.% Surfactant, not less than 11 wt.% phosphate salts in terms of P ₂ O ₅ and not less than 1.7 wt.% sodium silicate in terms of S iO ₂ , in the following ratio of components, wt.%: CMC 20-30; TMS 70-80. The specified method is applicable for cleaning containers.

However, this known method does not provide a positive result in the presence of saline water with a density above 1.005 g / cm ³ , because precipitation occurs. In addition, the known method can be implemented only when the temperature of the washing reagent is not higher than 60 ° C. at a higher temperature, it loses its washing properties, which does not allow to deal with long-standing, for example, bituminized, oil product sediments and paraffin deposits and leads to increased consumption of both reagent and processing time. All this reduces the effectiveness of the method.

When creating inventions - two variants of PAN detergent formulations, the task was to obtain a detergent that would have a set of physicochemical properties: solvent, wetting and degreasing ability. The single technical result provided by both versions of the formulations is to reduce the consumption of detergent, its foaming and the capacity of working solutions for petroleum products, and to increase the degree of purification from chronic pollution, as well as maintaining these properties in a wide temperature range up to 98 ° C and in the presence of water with varying degrees of mineralization.

The specified technical result is achieved in that the detergent for cleaning the surface from organic contaminants, including surfactants, a phosphate-containing reagent, sodium metasilicate and soda ash, according to the first embodiment, additionally contains caustic soda, sodium polyphosphate and sodium sulfate, as a surfactant contains a mixture of neonol and syntamide-5 with a mass ratio of 1: 0.25-10.0, respectively, and sodium tripolyphosphate and trisodium phosphate as the phosphate-containing reagent, with the following elations, wt.%:

neonol - 0.5-4.0;

syntamide-5 - 1.0-5.0;

sodium metasilicate - 8.0-15.0;

sodium tripolyphosphate - 8.0-15.0;

trisodium phosphate - 10.0-15.0;

sodium polyphosphate - 2.0-10.0;

caustic soda - 1.0-5.0;

soda ash - 15.0-23.0;

sodium sulfate - up to 100,

and according to the second option, it additionally contains caustic soda, sodium polyphosphate, sodium sulfate and a complexing agent, as a surfactant it contains a mixture of neonol and syntamide-5 with a mass ratio of 1: 0.25-10.0, respectively, and tripolyphosphate as a phosphate-containing reagent sodium and trisodium phosphate, in the following ratio, wt.%:

neonol - 0.5-4.0;

syntamide-5 - 1.0-5.0;

sodium metasilicate - 8.0-15.0;

sodium tripolyphosphate - 8.0-15.0;

trisodium phosphate - 10.0-15.0;

sodium polyphosphate - 2.0-10.0;

caustic soda - 1.0-5.0;

soda ash - 15.0-23.0;

complexing agent - 1.0-3.0;

sodium sulfate - up to 100.

As a complexing agent, the detergent contains corilate and / or trilon B.

In both cases, the detergent further comprises an antifoam in an amount of up to 0.3 wt.%.

The specified technical result is ensured due to the synergistic effect of the combination of components used in the detergent when their declared quantitative ratio.

When creating the invention - a method of cleaning wells, pipelines and tanks from oil product sediments and their deposits, the task was to increase its effectiveness by removing these sediments and paraffin deposits, including old and cork-like, and the possibility of implementing the method at a temperature of the working solution of detergent up to 98 ° C.

To solve the above technical problem, a method is proposed for cleaning wells, pipelines and tanks from oil product sediments and their deposits, including treating a well, pipe or tank with a heated aqueous solution of a washing reagent containing a mixture of surfactants, surfactants, phosphate salts and sodium silicate, while as a detergent reagent, a detergent is used to clean the surface from organic deposits, consisting of a mixture of surfactants of neonol and syntamide-5 with a mass ratio of 1: 0.25-10.0, respectively -retarded, sodium tripolyphosphate, trisodium phosphate, sodium polyphosphate, sodium metasilicate, caustic soda and soda ash with sodium sulfate, taken in the following ratio, wt.%:

neonol - 0.5-4.0;

syntamide-5 - 1.0-5.0;

sodium metasilicate - 8.0-15.0;

sodium tripolyphosphate - 8.0-15.0;

trisodium phosphate - 10.0-15.0;

sodium polyphosphate - 2.0-10.0;

caustic soda - 1.0-5.0;

soda ash - 15.0-23.0;

sodium sulfate - up to 100,

or use a detergent consisting of a mixture of surfactants of neonol and syntamide-5 at a weight ratio of 1: 0.25-10.0, respectively, sodium tripolyphosphate, trisodium phosphate, sodium polyphosphate, sodium metasilicate, caustic soda, soda ash, complexing agent and sodium sulfate taken in the following ratio, wt.%:

neonol - 0.5-4.0;

syntamide-5 - 1.0-5.0;

sodium metasilicate - 8.0-15.0;

sodium tripolyphosphate - 8.0-15.0;

trisodium phosphate - 10.0-15.0;

sodium polyphosphate - 2.0-10.0;

caustic soda - 1.0-5.0;

soda ash - 15.0-23.0;

complexing agent - 1.0-3.0;

sodium sulfate - up to 100,

and the treatment of a well, pipeline or tank is carried out with an aqueous solution of the specified detergent 0.3-3.0% concentration, heated to a temperature of 45-98 ° C.

Improving the efficiency of cleaning sediments of petroleum products and their sediment deposits according to the proposed method is provided due to the high activity of the detergent used in a wide temperature range and the exclusion of precipitation when mixed with mineralized waters.

To obtain the proposed PAN detergents in both laboratory and field conditions, the following substances were used:

- neonol - ethoxylated alkyl phenols based on propylene trimers of type AF _9-6 according to TU 38.507-63-171-91 or AF _9-12 according to TU 2483-077-05766801-98;

- syntamide-5 - polyethylene glycol ethers of monoethanolamides of synthetic fatty acids of fractions C ₁₀ -C ₁₈ according to TU 6-02-640-80;

- sodium metasilicate according to TU 2145-026-00204872-2002;

- sodium tripolyphosphate according to TU 113-00-05759020-25-95 or according to TU 2148-095-43499406-98;

- trisodium phosphate according to GOST 201-76;

- sodium polyphosphate according to GOST 20291-80;

- caustic soda (sodium hydroxide) according to GOST 2263-79;

- soda ash (sodium carbonate) according to TU GOST 5100-85;

- complexing agents:

- corilate - a mixture of sodium salts of nitrilotrimethylphosphonic acid according to TU 6-09-20-243-94;

- Trilon B - disodium salt of ethylenediaminetetraacetic acid according to TU 113-04-260-87;

- defoamer PGKO-1001 according to TU 6-00-0576-441-64-92.

The proposed detergents were prepared by dry mixing the ingredients at the stated quantitative ratio.

For testing in laboratory conditions, a number of compositions of the claimed funds were prepared, the component composition of which is shown in table 1.

When conducting laboratory tests, the following properties of the proposed detergent "PAN" were determined:

- the washing ability of the working aqueous solution of detergent "PAN" in relation to paraffin and graphite grease;

- foaming ability;

- the capacity of the working aqueous solution of detergent in relation to petroleum products.

The washing ability was determined by the gravimetric method, the essence of which is to determine the washability of organic impurities from the surface of the samples. The samples are washed in a laboratory washing installation by dipping with the excitation of the washing solution using a mixer having a constant speed of 3000 rpm. The total concentration of detergents in the working solution is 7 g / dm ³ (i.e., a working solution of 0.7% concentration), the washing temperature is from 45 to 98 ° C, most of the experiments were carried out at a temperature of 75 ° C. For testing, samples made of steel grade St-3 are taken, washed with running water, acetone, dried and weighed on an analytical balance. Further, the sample is contaminated with paraffin deposits from real oil production facilities (tubing, submersible pump elements, etc.) by dipping into the melt or polluting the surface of the sample with graphite lubricant. Samples are cooled at room temperature, weighed and placed in a washer, where they are washed for 3 minutes. After washing, the samples are dried in air to constant weight. Washing ability is defined as the ratio of the mass of contaminants washed off the surface of the test sample to the total mass of contaminants on its surface before washing, expressed as a percentage. The washing ability was determined at different temperatures of the working solution, as well as at different salinity of the water used to prepare the working solution (with a low degree of mineralization of 4.5 ppm and a high degree of mineralization of 45 ppm, which was obtained by dissolving natural sea salt in a given amount of distilled water) .

The foaming ability is determined according to GOST 22567.15-95 according to the methodology adopted for synthetic detergents.

The capacity of the working aqueous solution of detergent in relation to petroleum products is determined by the following method. 1 dm ^{3 of a} 0.7% aqueous solution of the test detergent is poured into a metal cup and a polyethylene ring is placed on the surface. 1.6 g of model petroleum product (M-40 fuel oil and MS-40 oil in a mass ratio of 1: 1) is added to the center of the ring. The mixture is held for 1 minute, then stirred with a propeller stirrer at a speed of 3000 rpm for 3 minutes. After mixing, the emulsion is poured into a tank for sludge (separatory funnel), sedimented for 3 hours, then the aqueous layer is separated, a sample is taken and analyzed by the chloroform method using an electrophotocolorimeter. The oil content in the solution is determined by the calibration curve.

The data obtained during the tests are shown in table 2.

The data shown in table 2 show that the proposed detergent (both options) with the stated quantitative ratio of components has the following advantages over the known prototype:

- the washing ability with respect to both ARPD and graphite lubricants of the USCA type is 1.6-1.8 times higher both in low-mineralized fresh water and in water with a high degree of mineralization, which allows more efficient cleaning of surfaces from organic pollution;

- foaming is lower by 3.8-5.4 times, which ensures the manufacturability of use when pumping, especially important in field conditions;

- the capacity of the working solution in relation to petroleum products is lower by 18.2-25.4 times, which eliminates the need for expensive cleaning of working solutions and reduces the negative impact on the environment;

- It works effectively even at high temperatures up to 98 ° C without loss of active properties.

It should be noted that table 2 (experiment 16) shows the test data for the analogue according to the patent of the Russian Federation No. 2277582 due to the fact that this detergent is quite close to the claimed one and the study of its properties allows a better understanding of the essence of the invention.

At the same time, it was additionally established that the proposed PAN detergent (also both options) provides a high duration of effective working solution (up to 300 operations subject to recycling and reinforcement) and at the same time is characterized by demulsifying ability, providing partial separation of the formation fluid into sludge , oil and water. All this proves the high activity and manufacturability of the claimed detergents for cleaning surfaces from organic contaminants.

The proposed detergent "PAN" was also tested in the field with the implementation of the proposed method for the removal of paraffin in a number of wells in the Volga deposits. The method is implemented as follows:

- prepare the detergent "PAN" by dry mixing the components in predetermined quantities (the specified tool "PAN" can be prepared in the factory and delivered to the well in bags);

- a concentrated (about 15%) working solution of PAN detergent is prepared in the tank by dissolving it in hot water (not only fresh, but also mineralized wastewater can be used as this water);

- further, the calculated part of the specified concentrated solution is pumped into the AC-10 tank truck (it is partially filled with the calculated amount of water) to obtain a working solution of PAN detergent with a concentration of 0.3-3.0%;

- prepared working solution on a compressed high-pressure line (heated by a PPU steam installation to a temperature of 45-98 ° C, depending on the old age and type of deposits, and also depending on the production method: using a rod-type deep-well pump SHGN or an electric centrifugal pump ESP) pumped into the well (you can make a circular circulation or apply the bath method);

- then it is possible to carry out the final flushing of the well with water (this operation is optional and is not necessary, since the working solution of the PAN agent provides not only ASPO cleaning, but also simultaneous flushing of the production string).

Example. The tests were carried out during scheduled repairs at a well with a depth of 1854 m. When lifting tubing (tubing) from it, deposits of paraffin deposits were observed on their outer surface. According to the work plan, it was required to install an explosion packer at a depth of 1775 m. But it was possible to mimic the production casing only to a depth of 120 m (further, a plug from the sediments interfered). Produced a combined washing of the bottom of the well with an aqueous solution of the known detergent ML-81B in a volume of 48 m ³ . It was possible to mimic the production string only to a depth of 260 m. Then the distillate was pumped in a volume of 7 m ³ . Then they also flushed the well with an aqueous solution of ML-81B in a volume of 48 m ³ . The plug from the paraffin was not washed and washed. The template stuck at a depth of 1765 m. The time spent on these operations was 116 hours. After that, by agreement with the department for overhaul of wells, it was decided to treat the well with the claimed method using PAN detergent. For this, an injection was carried out with a circulation of 48 m ³ for 1 hour of a 2% aqueous solution of “PAN” heated to 75 ° C through deflated tubing with a feather. After lifting the pen, the geophysical template 118 mm reached a depth of 1781.4 m. An explosion packer was installed at a predetermined depth of 1775.4 m and the work on putting the well into operation continued.

The above proves the effectiveness of the proposed method and the high activity of the PAN detergent (during processing, the ARP plug was completely eliminated in a short period of time) compared to the ML-81B detergent used today. In addition, this efficiency is ensured at a low consumption of the inventive detergent.

In addition, during field treatments of a number of wells with the proposed PAN detergent (various formulations were tested for both options), the following successful indicators were achieved:

- restoration of elevator patency (hydrate plug and paraffin removal) 98% - wedging rod and submersible pumps 96% - efficiency in relation to traditional methods (washing with solvents and hot oil) 157%.

The proposed method can be used in the cleaning of pipelines and tanks from organic sediments of oil products and sediment deposits. The order of operations and modes are identical.

When using the proposed method using the “PAN” tool, service organizations cleaned the tubing, sucker rods, submersible pumps. The results are as follows:

- degree of washing equipment 95-100% - quality of washing pollution up to inveterate bituminized Particularly difficult cleaning

Tests were also conducted to clean the tanks in which fuel oil was transported. The results are as follows:

- reduced cleaning time fifty% - quality of cleaning does not require manual cleaning - watering washed out oil after three hours sludge without heating no more than 10%

Thus, the inventive detergent "PAN" effectively cleans surfaces of organic contaminants and at the same time provides a high technological effect from the use in the proposed method for cleaning wells, pipelines and tanks from oil products and deposits.

Table 1 The compositions of the detergents prepared for testing No. p / p Components The content of components in the detergent, wt.% Song Number one 2 3 four 5 6 7 8 9 10 eleven 12 Prototype Patent 2259393 Analogue patent 2277582 one Neonol 0.5 4.0 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 - - 2 Syntamide 5,0 1,0 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 - - 3 Sodium metasilicate 8.0 8.0 15.0 11.0 11.0 11.0 11.0 11.0 11.0 11.0 11.0 11.0 3,5 - four Sodium Tripolyphosphate 8.0 8.0 8.0 15.0 11.0 11.0 11.0 11.0 11.0 11.0 11.0 11.0 8.75 - 5 Trisodium phosphate 10.0 10.0 10.0 10.0 15.0 12.5 12.5 12.5 12.5 12.5 12.5 12.5 8.75 9.0 6 Sodium polyphosphate 10.0 10.0 10.0 10.0 10.0 2.0 6.0 6.0 6.0 6.0 6.0 6.0 - 7.0 7 Corilat 0,0 0,0 0,0 0,0 0,0 3.0 1,5 1,5 0,0 0,0 0,0 0,0 - 35.0 8 Trilon B 0,0 0,0 0,0 0,0 0,0 0,0 0,0 1,5 1,5 1,5 1,5 1,5 - - 9 Caustic soda 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,0 5,0 3.0 3.0 3.0 - 48.25 10 Soda ash 23.0 23.0 23.0 23.0 23.0 23.0 23.0 23.0 23.0 15.0 19.0 19.0 64.0 - eleven Antifoam agent 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0,0 0.2 - - 12 Sodium sulfate 34.45 34.95 27.95 24.95 23.95 31,45 28.95 27.45 24.95 34.95 31,0 30.80 - - 13 Sinterol - - - - - - - - - - - - 11.0 - fourteen Bactericidal anti-corrosion additive - - - - - - - - - - - - 4.0 - fifteen A mixture of non-inorganic surfactants Berol-LF + Dzhi61 (a mixture of ethoxylates of alcohols and alkyl glucoside) - - - - - - - - - - - - - 0.75

table 2 Data on the properties of the proposed and known detergents Experience number The detergent composition number from table 1 Detergency on asphaltene-tar-paraffin deposits,% The washing ability on pollution with graphite grease USSA,% Foam column height, mm The capacity of the solution for petroleum products, mg / DM ³ drinking water sea water drinking water sea water one one 89 88 97 97 40 43 2 2 86 85 98 96 45 33 3 3 90 90 97 95 38 38 four four 93 91 99 98 48 35 5 5 88 85 97 96 fifty 40 6 6 92 87 98 97 35 45 7 7 90 88 99 96 38 47 8 8 95 93 97 98 46 39 9 9 91 90 96 95 47 41 10 10 92 94 98 94 40 46 eleven eleven 94 91 97 95 35 44 12 12 92 92 99 98 42 39 13* 7 84 82 93 90 thirty 45 fourteen** 7 97 95 99 95 42 59 fifteen Prototype Patent 2259393 54 37 81 70 190 837 16 Analogue patent 2277582 fifty 49 75 72 200 920 * - the experiment was carried out at a temperature of 45 ° C; ** - the experiment was carried out at a temperature of 98 ° C.

Claims (7)

1. Detergent for cleaning the surface from organic contaminants, including surface-active substances (surfactants), phosphate-containing reagent, sodium metasilicate and soda ash, characterized in that it additionally contains caustic soda, sodium polyphosphate and sodium sulfate, as a surfactant contains a mixture neonol and syntamide-5 with a mass ratio of 1: 0.25-10.0, respectively, and as a phosphate-containing reagent, sodium tripolyphosphate and trisodium phosphate, in the following ratio, wt.%: neonol 0.5-4.0 syntamide-5 1-5 sodium metasilicate 8-15 sodium tripolyphosphate 8-15 trisodium phosphate 10-15 sodium polyphosphate 2-10 caustic soda 1-5 soda ash 15-23 sodium sulfate up to 100 2. The detergent according to claim 1, characterized in that it further comprises an antifoam in an amount of up to 0.3 wt.%. 3. Detergent for cleaning the surface from organic contaminants, including surface-active substances (surfactants), phosphate-containing reagent, sodium metasilicate and soda ash, characterized in that it additionally contains caustic soda, sodium polyphosphate, sodium sulfate and complexing agent, as a surfactant contains a mixture of neonol and syntamide-5 at a mass ratio of 1: 0.25-10.0, respectively, and sodium tripolyphosphate and trisodium phosphate as the phosphate-containing reagent, in the following ratio of components , wt.%: neonol 0.5-4.0 syntamide-5 1-5 sodium metasilicate 8-15 sodium tripolyphosphate 8-15 trisodium phosphate 10-15 sodium polyphosphate 2-10 caustic soda 1-5 soda ash 15-23 complexing agent 1-3 sodium sulfate Up to 100 4. The detergent according to claim 3, characterized in that as a complexing agent it contains corilate and / or trilon B. 5. The detergent according to claim 3, characterized in that it further comprises an antifoam in an amount of up to 0.3 wt.%. 6. A method of cleaning wells, pipelines and tanks from sediments of oil products and their deposits, including treating a well, pipe or tank with a heated aqueous solution of a cleaning reagent containing a mixture of surface-active substances (surfactants), phosphoric acid salts and sodium silicate, characterized in that as a detergent reagent, a detergent is used to clean the surface of organic deposits, consisting of a mixture of surfactants of neonol and syntamide-5 with a mass ratio of 1: 0.25-10.0, respectively, sodium tripolyphosphate, trisodium of iiphosphate, sodium polyphosphate, sodium metasilicate, caustic soda, soda ash and sodium sulfate, taken in the following ratio, wt.%: neonol 0.5-4.0; syntamide-5 1-5 sodium metasilicate 8-15 sodium tripolyphosphate 8-15 trisodium phosphate 10-15 sodium polyphosphate 2-10 caustic soda 1-5 soda ash 15-23 sodium sulfate Up to 100 or use a detergent consisting of a mixture of surfactants of neonol and syntamide-5 with a mass ratio of 1: 0.25-10.0, respectively, sodium tripolyphosphate, trisodium phosphate, sodium polyphosphate, sodium metasilicate, caustic soda, soda ash, complexing agent and sodium sulfate taken in the following ratio, wt.%: neonol 0.5-4.0 syntamide-5 1-5 sodium metasilicate 8-15 sodium tripolyphosphate 8-15 trisodium phosphate 10-15 sodium polyphosphate 2-10 caustic soda 1-5 soda ash 15-23 complexing agent 1-3 sodium sulfate Up to 100 and the treatment of a well, pipeline or tank is carried out with an aqueous solution of the specified detergent 0.3-3.0% concentration, heated to a temperature of 45-98 ° C. 7. The method according to claim 1, characterized in that the detergent further comprises an antifoam in an amount of up to 0.3 wt.%.