CN102061156A - Corrosion and scale preventing ball for oilfield production equipment and production method thereof - Google Patents
Corrosion and scale preventing ball for oilfield production equipment and production method thereof Download PDFInfo
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- CN102061156A CN102061156A CN2010105521098A CN201010552109A CN102061156A CN 102061156 A CN102061156 A CN 102061156A CN 2010105521098 A CN2010105521098 A CN 2010105521098A CN 201010552109 A CN201010552109 A CN 201010552109A CN 102061156 A CN102061156 A CN 102061156A
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Abstract
The invention discloses a corrosion and scale preventing ball for oilfield production equipment. The ball is prepared from silica powder, sodium carbonate, trisodium phosphate, potassium chloride, potassium pyrophosphate, zinc oxide and aluminium phosphate. The corrosion and scale preventing ball has the following positive effects: the slow release technology, the semivitreous demoulding technology, the internal stress relieving technology and the temperature control technology are fused; the product has good corrosion prevention performance, high scale prevention rate and long release period, is nontoxic, tasteless and corrosion-free, has no impact on the environment and relevant underground equipment, totally conforms to the requirements of the petroleum industry for health, safety and environment (HSE), is stable in performances and quite convenient to store and transport, can adapt to screw pump wells with different displacements, is suitable for different tubing and non-tubing oil production processes, is also suitable for different displacement processes such as water flooding, polymer flooding, ASP (alkali, surfactant and polymer) flooding and the like and can totally meet the use requirement and production requirement on site.
Description
Technical field
The present invention discloses a kind of oil field produced equipment anticorrosion antiscale ball, is used for oil field produced equipment anticorrosion antiscale, and the present invention also provides the production method of above-mentioned anti-corrosion anti-scale ball, belongs to oil-extracting well water chemical treatment method field.
Background technology
China's onshore oil field is because of the secondary oil recovery technology at present, injecting in the oil reservoir when big water gaging is realized the displacement of reservoir oil causes oil field produced equipment corrosion scale problems quite serious, cause the workover treatment frequency to increase on the one hand, oil well repair free period is short, increases maintenance cost and strengthens production cost.Extraction equipment corrosion scale problems on the other hand causes output to successively decrease gradually and brings heavy losses.Also there is not a kind of technology can thoroughly solve this practical problems until present stage, with regard to the anti-corrosion anti-scale piece that uses in the market, throw in a certain amount of anti-corrosion anti-scale product to the down-hole in the time of can only be with well workover, but with produce to carry out product constantly dissolved, when product dissolved intact after, pick up next time to repair at oil well and can not get in remaining time phase in time replenishing, and lose the anti-corrosion anti-scale effect.So currently available products is difficult to obtain promotion and application.
Summary of the invention
The present invention opens a kind of oil field produced equipment anticorrosion antiscale ball, has good a unit of weight used in ancient China, equal to six liang erosion function and anti-scaling function, more is adapted to the complicated requirement of various oil fields output water.
The present invention also provides the production method of above-mentioned anti-corrosion anti-scale ball, and technology is simple, and controllability is good, is applicable to suitability for industrialized production.
Oil field produced equipment anticorrosion antiscale ball of the present invention,By following raw materials by weight portion than making:
Ground silica 32～38, soda ash 25～28, tertiary sodium phosphate 15～18, Repone K 6～10, potassium pyrophosphate 4.5～6.0, zinc oxide 5.0～6.0, aluminum phosphate 1.5～3.0.
[0006] anti-corrosion anti-scale ball of the present invention, optimum ratio is:
Ground silica 32, soda ash 28, tertiary sodium phosphate 17, potassium pyrophosphate 6, Repone K 6, zinc oxide 5.0, aluminum phosphate 3.0.
The preparation method of anti-corrosion anti-scale ball of the present invention may further comprise the steps:
Take by weighing raw material according to the above ratio, after in mixing machine, carrying out abundant mixing, drop into the vitreous state that 1520～1525 ℃ of high-temperature smelting pots fully are fused into uniform no calculus, temperature is reduced to 1345～1350 ℃ of products and is become and have the flowable liquid state of certain viscosity, the inflow glass bowling machine that is interrupted from discharge port carries out moulding, the spheroid of diameter 15mm is by reducing to normal temperature naturally, promptly.
The present invention reduces the characteristic that increases according to its viscosity with temperature, can produce spherical product, also can produce the different product of all size type shape according to demand with bowling machine in the process of glass mode, selects for the user.In the process of producing product, can place attemperator to be incubated processing product to the bigger product that need to eliminate product stress of type shape, with eliminate product in process of production Yin Wendu reduce too fast and produce and burst.It is essential with the complicated unmanageable problem of annealing furnace annealed to change thick in the past shape vitreous state product.
The present invention has realized producing the variation of specification kenel on the basis of the single kenel of existing product, for all kinds of oil fields provide more selection.
The present invention has created attemperator, has realized the requirement of all size type shape product eliminates stress, has simplified production process.
The anti-corrosion anti-scale ball collector is installed in the present invention additional under producing well, when oil well overhauls with under the oil well pump lower going-into-well, overcome antiscale product in the past, can not in time obtain the realistic problem of replenishing in turn(a)round 1 year left and right sides, the oil field can be according to oilwell produced fluid amount and water ratio, regularly quantitatively in well, throw in a certain amount of anti-corrosion anti-scale ball, poor by density of liquid in self and the well of anti-corrosion anti-scale ball, freely sink in the collector under the resident pump.When oil well pump is worked, charge into ball barrel under the receipts ball hole of liquid by ball collecting device in the well, enter in the pump through the anti-corrosion anti-scale ball again.Regular thus quantitative stuff is after dissolving in aqueous well liquid.The hardness ions that it can be caught in the well liquid forms colloid, and has auxilliary film function in the metallic surface that fluid is flowed through, and makes the metallic surface play the anti-corrosion anti-scale effect.
The present invention also can be used for the oilfield sewage harmless treatment, the output water that oil field output in oil recovery process need be handled in a large number, and after output water carries out oil, water sepn at present, only carry out sterilising treatment, and its calcium magnesium hardness ions and iron ion are not dealt with, in refilling oil reservoir, will produce serious corrosion and scale problems like this.Particularly adopt and gather the oil field of driving with chemical flooding, the existence of hardness ions will make polymkeric substance and table agent alive degraded take place and consume a large amount of expensive polymkeric substance and tensio-active agent, for realizing reducing the chemical recovery cost, reach adding real multi-functional reality of a kind of preparation and long-range requirement.The present invention realizes this problem preferably.
Positively effect of the present invention is:
Slow release method, semivitreous ejection technique, internal stress technology for eliminating and temperature control technology have been merged.The product antiseptic property is good, antiscaling rate is high, deenergized period is long; Nontoxic, tasteless, do not have a corrosion, environment and down-hole relevant device without any influence, are met the requirement of HSE petroleum industry fully; Stable performance, it is all very convenient to store and transport; The screw bolt well that can adapt to different displacements adapts to different oil production technology such as oil pipe and no oil pipe, also adapts to water drive, poly-driving and different displacement technology such as ternary composite driving, can satisfy on-the-spot service requirements and production needs fully.
The invention belongs to environmental friendliness, the environmental type product.Product is nontoxic, tasteless, safe and convenient to use.Also can be widely used in the Industrial Boiler water treatment.Be a kind of multi-functional, the novel product of applied range.
Embodiment
By following examples the present invention is described for example further, and do not limit the present invention in any way, under the prerequisite that does not deviate from technical solution of the present invention, any change or change that those of ordinary skills that the present invention did are realized easily all will fall within the claim scope of the present invention.
Embodiment 1
Get high purity silicon stone flour 32kg, soda ash 28kg, tertiary sodium phosphate 17kg, potassium pyrophosphate 6kg, Repone K 6.0kg, zinc oxide 5.0kg, aluminum phosphate 3.0kg, after in mixing machine, carrying out abundant mixing, drop into the vitreous state that 1520～1525 ℃ of high-temperature smelting pots fully are fused into uniform no calculus, temperature is reduced to 1345～1350 ℃ of products and is become and have the flowable liquid state of certain viscosity, the inflow glass bowling machine that is interrupted from discharge port carries out moulding, product goes out the spheroid of diameter 15mm, by reducing to normal temperature naturally, warehouse-in in the sealing bag of packing into.
Embodiment 2
After getting high purity silicon stone flour 38kg, soda ash 25kg, tertiary sodium phosphate 16kg, potassium pyrophosphate 5kg, Repone K 8kg, zinc oxide 5.5kg, aluminum phosphate 2.5kg and in mixing machine, carrying out abundant mixing, drop into the vitreous state that 1550～1560 ℃ of high-temperature smelting pots fully are fused into uniform no calculus, temperature is reduced to 1150～1200 ℃ of products and is become and have the flowable liquid state of certain viscosity, carries out moulding in the inflow glass cast iron mould that is interrupted from discharge port.Product goes out the square body of the long 210mm of 50 * 50 mm and the Cylinder of the long 200mm of diameter 55mm.Put into after product approval and give the attemperator that performs earlier, what rely on product is incubated processing from trip temperature, reaches until product to pack warehouse-in after normal temperature takes out.
Embodiment 3
Get high purity silicon stone flour 35kg, soda ash 26kg, tertiary sodium phosphate 15kg, potassium pyrophosphate 6kg, Repone K 10kg, zinc oxide 6kg, aluminum phosphate 2kg, with above-mentioned raw materials after mixing machine carries out abundant mixing, drop into the vitreous state that 1590～1600 ℃ of high-temperature smelting pots fully are fused into uniform no calculus, temperature is reduced to 1145～1155 ℃ of products and is become and have the flowable liquid state of certain viscosity, carries out moulding in the inflow glass cast iron mould that is interrupted from discharge port.Produce straight spheroid with bowling machine through Ф 16mm, naturally cool to normal temperature moisture sealed packing warehouse-in, produce the solid Cylinder of diameter Ф 55mm simultaneously, after product approval, put into and give the attemperator that performs earlier, rely on self temperature of product to be incubated processing, reach normal temperature until product and take out the back protection against the tide and pack warehouse-in.
The test example
The inhibition of product, antiscale detect
About " inhibition scale inhibitor Product Acceptance Review and result of use test rating and method " above-mentioned three embodiment being carried out the inhibition antiscale according to PetroChina Company Ltd., Daqing Oil Field Co., Ltd's company standard＜Q/SYDQ0830-2002〉detects:
Product inhibition antiscale detected result
| Project | Detect index | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Outward appearance | The translucent glass attitude | The translucent glass attitude | The translucent glass attitude | The translucent glass attitude |
| Water-soluble | Dissolving | Dissolving | Dissolving | Dissolving |
| Corrosion inhibition rate (%) | ≥ 70 | 82.10 | 80.98 | 81.56 |
| Antiscaling rate (%) | ≥ 80 | 94.50 | 92.66 | 88.70 |
The field experiment of product
The 13 oil producing operation districts in Central Asia Petroleum Co., Ltd. state, state 162-2 well carries out field experiment of the present invention.This well is not before throwing in the present invention.The corrosion of successively having carried out four maintenance on May 20th, 2005, September 6 August 11, half a year October 24 is very serious.
Tested on January 5th, 2006 during, drop into the external diameter 60mm long 200mm of endoporus 20mm solid preparation of the present invention in the down-hole and amount to 9 meters long meter 81Kg by the October 8 in 2006 of nine months middle still normal production fluids of any maintenance of not doing during calendar in the maintenance of this well.For examining or check the result of use of this solid preparation, in advance this well oil pipe is proposed to find that solid corrosion antiscale post all dissolves, but tube inner wall is complied with just very smooth not corrosion and fouling sign, the valve cover is excellent to be that the valve valve ball has the mild corrosion point.Estimate that this oil well still can ordinary production more than 2 months.
Claims (3)
1. oil field produced equipment anticorrosion antiscale ball, by following raw materials by weight portion than making:
Ground silica 32～38, soda ash 25～28, tertiary sodium phosphate 15～18, Repone K 6～10, potassium pyrophosphate 4.5～6.0, zinc oxide 5.0～6.0, aluminum phosphate 1.5～3.0.
2. the described anti-corrosion anti-scale ball of claim 1 is characterized in that by following raw materials by weight portion than making:
Ground silica 32, soda ash 28, tertiary sodium phosphate 17, Repone K 6, potassium pyrophosphate 6, zinc oxide 5.0, aluminum phosphate 3.0.
3. the preparation method of claim 1,2 described anti-corrosion anti-scale balls, may further comprise the steps: take by weighing raw material according to the above ratio, after in mixing machine, carrying out abundant mixing, drop into the vitreous state that 1520～1525 ℃ of high-temperature smelting pots fully are fused into uniform no calculus, temperature is reduced to 1345～1350 ℃ of products and is become and have the flowable liquid state of certain viscosity, and the inflow glass bowling machine that is interrupted from discharge port carries out moulding, the spheroid of diameter 15mm, by reducing to normal temperature naturally, promptly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105521098A CN102061156A (en) | 2010-11-22 | 2010-11-22 | Corrosion and scale preventing ball for oilfield production equipment and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105521098A CN102061156A (en) | 2010-11-22 | 2010-11-22 | Corrosion and scale preventing ball for oilfield production equipment and production method thereof |
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| CN102061156A true CN102061156A (en) | 2011-05-18 |
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| CN2010105521098A Pending CN102061156A (en) | 2010-11-22 | 2010-11-22 | Corrosion and scale preventing ball for oilfield production equipment and production method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1546401A (en) * | 2003-12-10 | 2004-11-17 | 长春洁意实业有限责任公司 | Oilfield downhole solid anti-scaling agent and its production technology |
| CN1769216A (en) * | 2004-11-05 | 2006-05-10 | 沈阳市铭阳防腐研究所 | Antiscaling block and its production method |
| US20070161539A1 (en) * | 2006-01-12 | 2007-07-12 | Enrique Hernandez | Method of regulating degree of polymerization of an alkali metal silicate in solution using pH |
-
2010
- 2010-11-22 CN CN2010105521098A patent/CN102061156A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1546401A (en) * | 2003-12-10 | 2004-11-17 | 长春洁意实业有限责任公司 | Oilfield downhole solid anti-scaling agent and its production technology |
| CN1769216A (en) * | 2004-11-05 | 2006-05-10 | 沈阳市铭阳防腐研究所 | Antiscaling block and its production method |
| US20070161539A1 (en) * | 2006-01-12 | 2007-07-12 | Enrique Hernandez | Method of regulating degree of polymerization of an alkali metal silicate in solution using pH |
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Application publication date: 20110518 |