CN106315877A - Corrosion and scale inhibitor for oil field as well as preparation method and application of corrosion and scale inhibitor - Google Patents
Corrosion and scale inhibitor for oil field as well as preparation method and application of corrosion and scale inhibitor Download PDFInfo
- Publication number
- CN106315877A CN106315877A CN201610891492.7A CN201610891492A CN106315877A CN 106315877 A CN106315877 A CN 106315877A CN 201610891492 A CN201610891492 A CN 201610891492A CN 106315877 A CN106315877 A CN 106315877A
- Authority
- CN
- China
- Prior art keywords
- parts
- corrosion
- tributyl citrate
- scale inhibitor
- oil field
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/12—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/08—Corrosion inhibition
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention discloses a corrosion and scale inhibitor for an oil field as well as a preparation method and application of the corrosion and scale inhibitor. The corrosion and scale inhibitor is prepared from the following raw materials in parts by weight: 30-40 parts of cotton hulls, 7-15 parts of tributyl citrate, 0.5-3 parts of melamine cyanurate, 1-5 parts of silicone powder and 18-26 parts of glycerol. The preparation method comprises the following steps: smashing the cotton hulls, adding tributyl citrate solution, heating and stirring, and carrying out microwave treatment; then adding melamine cyanurate and glycerol solution, heating and stirring, and carrying out ultrasonic treatment; and then adding silicone powder, heating and stirring, and carrying out high-temperature calcining, so as to obtain the corrosion and scale inhibitor. The corrosion and scale inhibitor disclosed by the invention has the advantages that the scale inhibition rate can reach up to more than 99% when petroleum produced water serves as reinjection water; and corrosion inhibition rate can reach more than 90%; the preparation method is simple and feasible, conditions are mild, the source of raw materials is wide, and extremely few raw materials are adopted, so that the preparation method can be widely popularized and applied; and the corrosion and scale inhibitor disclosed by the invention has good dispersibility, does not aggregate and is shelf-stable, and the shelf life can reach three years after compounding is completed.
Description
Technical field
The present invention relates to additive technology field, oil field, specifically a kind of oil field corrosion inhibiting and descaling agent and preparation method thereof and
Application.
Background technology
At present, along with the development of China's oilfield exploitation, oil field in after the productive life, owing to oil and gas production declines, therefore
Most of oil fields use the mode of water flooding recovery, improve oil and gas production with this.And while exploitation, many chemistry can be used
Auxiliary agent is so that oilfield exploitation is more convenient.And the drawback meanwhile brought is: due to continuing on of auxiliary agent so that recovered water
In composition extremely complex so that sewage intractability strengthen.
The recovered water in general oil field can utilize, if to recovered water being used for re-injection after follow-up treatment process
Process not in place, recovered water can be made when re-injection utilizes, cause pipeline large area to be tied due to a large amount of impurity of wherein containing
Dirt, thus cause line clogging so that exploitation work is extremely difficult.The chemical addition agent kind that oil field class uses when exploitation is numerous
Many, in order to solve the problems referred to above, most of oil fields can use antisludging agent to process it when processing recovered water, so that in water
Calcium, the salt such as magnesium and the compound in antisludging agent issue licence chelation, thus prevent it from forming dirt.And general antisludging agent pair
Though recovered water has certain scale effect, but due to the impact of the formula of antisludging agent own so that its poor effect, and not
Weaken the scaling rate in recovered water, can only temporarily suppress scale inhibition phenomenon.
Summary of the invention
It is an object of the invention to provide a kind of scale inhibition performance height, corrosion inhibition rate height, good dispersion, do not reunite, the oil of shelf-stable
Field corrosion inhibiting and descaling agent and its preparation method and application, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme:
A kind of oil field corrosion inhibiting and descaling agent, is made up of according to the raw material of weight portion following: Exocarpium Gossypii 30-40 part, citric acid three fourth
Ester 7-15 part, melamine cyanurate 0.5-3 part, silicone powder 1-5 part, glycerol 18-26 part.
As the further scheme of the present invention: described oil field corrosion inhibiting and descaling agent, by the following raw material group according to weight portion
Become: Exocarpium Gossypii 32-38 part, tributyl citrate 9-13 part, melamine cyanurate 1-2 part, silicone powder 2-4 part, glycerol
20-24 part.
As the further scheme of the present invention: described oil field corrosion inhibiting and descaling agent, by the following raw material group according to weight portion
Become: Exocarpium Gossypii 35 parts, tributyl citrate 11 parts, melamine cyanurate 1.5 parts, silicone powder 3 parts, glycerol 22 parts.
Another object of the present invention is to provide the preparation method of a kind of oil field corrosion inhibiting and descaling agent, comprises the steps of:
1) ethanol of tributyl citrate with its quality 5 times is mixed, obtain tributyl citrate solution；By glycerol and its quality
The deionized water mixing of 3 times, prepares glycerin solution；
2) Exocarpium Gossypii pulverized, cross 100 mesh sieves, add tributyl citrate solution, at a temperature of 80 DEG C, seal stir process
10min, then carry out microwave treatment 5min, microwave power is 800W；It is subsequently adding melamine cyanurate and glycerin solution；
Stir process 8-10min at a temperature of 95 DEG C again, carries out supersound process 20min at a temperature of 62 DEG C the most again, and ultrasonic power is
700W, adds silicone powder, and stirs 72min at a temperature of 150 DEG C, calcines 2h at a temperature of 450 DEG C the most again and i.e. obtains slow
Erosion antisludging agent.
Another object of the present invention is to provide the application in oil field water processes of the described corrosion inhibiting and descaling agent.
Compared with prior art, the invention has the beneficial effects as follows:
Corrosion inhibiting and descaling agent of the present invention is under the interaction of each raw material so that water exploiting petroleum is avoided when using as reinjected water
The formation of dirt, its scale inhibition performance may be up to more than 99%；The present invention, while scale inhibition, also has excellent corrosion inhibition, uses
After pipeline precocity will not be injured, corrosion inhibition rate is up to more than 90%；Preparation method of the present invention is simple, mild condition, and raw material comes
Source extensively and uses raw material few, can wide popularization and application.Good dispersion of the present invention, does not reunites, shelf-stable, after having compounded
The storage phase can reach 3 years.
Detailed description of the invention
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, all
Belong to the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, a kind of oil field corrosion inhibiting and descaling agent, it is made up of according to the raw material of weight portion following: Exocarpium Gossypii 30
Part, tributyl citrate 7 parts, melamine cyanurate 0.5 part, silicone powder 1 part, glycerol 18 parts.
The ethanol of tributyl citrate with its quality 5 times is mixed, obtains tributyl citrate solution；By glycerol and its matter
Measure the deionized water mixing of 3 times, prepare glycerin solution.Exocarpium Gossypii is pulverized, crosses 100 mesh sieves, add tributyl citrate molten
Liquid, seals stir process 10min at a temperature of 80 DEG C, then carries out microwave treatment 5min, and microwave power is 800W；It is subsequently adding
Melamine cyanurate and glycerin solution；Stir process 8min at a temperature of 95 DEG C again, enters at a temperature of 62 DEG C the most again
Row supersound process 20min, ultrasonic power is 700W, adds silicone powder, and stirs 72min at a temperature of 150 DEG C, the most again
Calcine 2h at a temperature of 450 DEG C and i.e. obtain corrosion inhibiting and descaling agent.
Embodiment 2
In the embodiment of the present invention, a kind of oil field corrosion inhibiting and descaling agent, it is made up of according to the raw material of weight portion following: Exocarpium Gossypii 40
Part, tributyl citrate 15 parts, melamine cyanurate 3 parts, silicone powder 5 parts, glycerol 26 parts.
The ethanol of tributyl citrate with its quality 5 times is mixed, obtains tributyl citrate solution；By glycerol and its matter
Measure the deionized water mixing of 3 times, prepare glycerin solution.Exocarpium Gossypii is pulverized, crosses 100 mesh sieves, add tributyl citrate molten
Liquid, seals stir process 10min at a temperature of 80 DEG C, then carries out microwave treatment 5min, and microwave power is 800W；It is subsequently adding
Melamine cyanurate and glycerin solution；Stir process 10min at a temperature of 95 DEG C again, enters at a temperature of 62 DEG C the most again
Row supersound process 20min, ultrasonic power is 700W, adds silicone powder, and stirs 72min at a temperature of 150 DEG C, the most again
Calcine 2h at a temperature of 450 DEG C and i.e. obtain corrosion inhibiting and descaling agent.
Embodiment 3
In the embodiment of the present invention, a kind of oil field corrosion inhibiting and descaling agent, it is made up of according to the raw material of weight portion following: Exocarpium Gossypii 32
Part, tributyl citrate 9 parts, melamine cyanurate 1 part, silicone powder 2 parts, glycerol 20 parts.
The ethanol of tributyl citrate with its quality 5 times is mixed, obtains tributyl citrate solution；By glycerol and its matter
Measure the deionized water mixing of 3 times, prepare glycerin solution.Exocarpium Gossypii is pulverized, crosses 100 mesh sieves, add tributyl citrate molten
Liquid, seals stir process 10min at a temperature of 80 DEG C, then carries out microwave treatment 5min, and microwave power is 800W；It is subsequently adding
Melamine cyanurate and glycerin solution；Stir process 9min at a temperature of 95 DEG C again, enters at a temperature of 62 DEG C the most again
Row supersound process 20min, ultrasonic power is 700W, adds silicone powder, and stirs 72min at a temperature of 150 DEG C, the most again
Calcine 2h at a temperature of 450 DEG C and i.e. obtain corrosion inhibiting and descaling agent.
Embodiment 4
In the embodiment of the present invention, a kind of oil field corrosion inhibiting and descaling agent, it is made up of according to the raw material of weight portion following: Exocarpium Gossypii 38
Part, tributyl citrate 13 parts, melamine cyanurate 2 parts, silicone powder 4 parts, glycerol 24 parts.
The ethanol of tributyl citrate with its quality 5 times is mixed, obtains tributyl citrate solution；By glycerol and its matter
Measure the deionized water mixing of 3 times, prepare glycerin solution.Exocarpium Gossypii is pulverized, crosses 100 mesh sieves, add tributyl citrate molten
Liquid, seals stir process 10min at a temperature of 80 DEG C, then carries out microwave treatment 5min, and microwave power is 800W；It is subsequently adding
Melamine cyanurate and glycerin solution；Stir process 9min at a temperature of 95 DEG C again, enters at a temperature of 62 DEG C the most again
Row supersound process 20min, ultrasonic power is 700W, adds silicone powder, and stirs 72min at a temperature of 150 DEG C, the most again
Calcine 2h at a temperature of 450 DEG C and i.e. obtain corrosion inhibiting and descaling agent.
Embodiment 5
In the embodiment of the present invention, a kind of oil field corrosion inhibiting and descaling agent, it is made up of according to the raw material of weight portion following: Exocarpium Gossypii 35
Part, tributyl citrate 11 parts, melamine cyanurate 1.5 parts, silicone powder 3 parts, glycerol 22 parts.
The ethanol of tributyl citrate with its quality 5 times is mixed, obtains tributyl citrate solution；By glycerol and its matter
Measure the deionized water mixing of 3 times, prepare glycerin solution.Exocarpium Gossypii is pulverized, crosses 100 mesh sieves, add tributyl citrate molten
Liquid, seals stir process 10min at a temperature of 80 DEG C, then carries out microwave treatment 5min, and microwave power is 800W；It is subsequently adding
Melamine cyanurate and glycerin solution；Stir process 9min at a temperature of 95 DEG C again, enters at a temperature of 62 DEG C the most again
Row supersound process 20min, ultrasonic power is 700W, adds silicone powder, and stirs 72min at a temperature of 150 DEG C, the most again
Calcine 2h at a temperature of 450 DEG C and i.e. obtain corrosion inhibiting and descaling agent.
Comparative example 1
In addition to not containing silicone powder, its formula and preparation process are consistent with embodiment 5.
Comparative example 2
Containing only Exocarpium Gossypii and silicone powder, its formula and preparation process are consistent with embodiment 5.
Performance detects:
By embodiment of the present invention 1-5 gained finished product and comparative example 1-2 gained finished product, water exploiting petroleum is processed, will process
After recovered water be used as after reinjected water, its scale inhibition effect and corrosion mitigating effect are as follows:
Table 1
| Scale inhibition performance, % | Corrosion inhibition rate, % | |
| Embodiment 1 | 99.2 | 90.2 |
| Embodiment 2 | 99.3 | 90.5 |
| Embodiment 3 | 99.7 | 92.8 |
| Embodiment 4 | 99.8 | 93.5 |
| Embodiment 5 | 99.9 | 95.2 |
| Comparative example 1 | 65 | 48 |
| Comparative example 2 | 45 | 33 |
From table 1 it follows that in embodiment 1-5, embodiment 5 gained finished product best results, it is considered as most preferred embodiment；To implement
Example 5 compares visible with comparative example 1-2, and Exocarpium Gossypii and silicone powder are under the common effect of other each components of the present invention, to the present invention
Scale effect and slow releasing function the most crucial, the scale-inhibiting properties of the present invention can be effectively improved.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of the spirit or essential attributes of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter
From the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all by fall in the implication of equivalency and scope of claim
Change is included in the present invention.
Although moreover, it will be appreciated that this specification is been described by according to embodiment, but the most each embodiment only wraps
Containing an independent technical scheme, this narrating mode of description is only that for clarity sake those skilled in the art should
Description can also be formed those skilled in the art through appropriately combined as an entirety, the technical scheme in each embodiment
May be appreciated other embodiments.
Claims (5)
1. an oil field corrosion inhibiting and descaling agent, it is characterised in that be made up of according to the raw material of weight portion following: Exocarpium Gossypii 30-40
Part, tributyl citrate 7-15 part, melamine cyanurate 0.5-3 part, silicone powder 1-5 part, glycerol 18-26 part.
Oil field the most according to claim 1 corrosion inhibiting and descaling agent, it is characterised in that by the following raw material group according to weight portion
Become: Exocarpium Gossypii 32-38 part, tributyl citrate 9-13 part, melamine cyanurate 1-2 part, silicone powder 2-4 part, glycerol
20-24 part.
Oil field the most according to claim 1 corrosion inhibiting and descaling agent, it is characterised in that by the following raw material group according to weight portion
Become: Exocarpium Gossypii 35 parts, tributyl citrate 11 parts, melamine cyanurate 1.5 parts, silicone powder 3 parts, glycerol 22 parts.
4. the preparation method of the oil field corrosion inhibiting and descaling agent as described in claim 1-3 is arbitrary, it is characterised in that by following
Step forms:
1) ethanol of tributyl citrate with its quality 5 times is mixed, obtain tributyl citrate solution；By glycerol and its quality
The deionized water mixing of 3 times, prepares glycerin solution；
2) Exocarpium Gossypii pulverized, cross 100 mesh sieves, add tributyl citrate solution, at a temperature of 80 DEG C, seal stir process
10min, then carry out microwave treatment 5min, microwave power is 800W；It is subsequently adding melamine cyanurate and glycerin solution；
Stir process 8-10min at a temperature of 95 DEG C again, carries out supersound process 20min at a temperature of 62 DEG C the most again, and ultrasonic power is
700W, adds silicone powder, and stirs 72min at a temperature of 150 DEG C, calcines 2h at a temperature of 450 DEG C the most again and i.e. obtains slow
Erosion antisludging agent.
5. the application in oil field water processes of the corrosion inhibiting and descaling agent as described in claim 1-3 is arbitrary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610891492.7A CN106315877A (en) | 2016-10-13 | 2016-10-13 | Corrosion and scale inhibitor for oil field as well as preparation method and application of corrosion and scale inhibitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610891492.7A CN106315877A (en) | 2016-10-13 | 2016-10-13 | Corrosion and scale inhibitor for oil field as well as preparation method and application of corrosion and scale inhibitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106315877A true CN106315877A (en) | 2017-01-11 |
Family
ID=57821344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610891492.7A Withdrawn CN106315877A (en) | 2016-10-13 | 2016-10-13 | Corrosion and scale inhibitor for oil field as well as preparation method and application of corrosion and scale inhibitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106315877A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102117025A (en) * | 2009-12-30 | 2011-07-06 | 安集微电子（上海）有限公司 | Photoresist detergent composition |
| CN103498163A (en) * | 2013-10-16 | 2014-01-08 | 合肥华清金属表面处理有限责任公司 | Environment-friendly seawater corrosion inhibitor containing plant extracts and preparation method for environment-friendly seawater corrosion inhibitor |
| CN104230016A (en) * | 2014-09-07 | 2014-12-24 | 无棣华信石油技术服务有限公司 | Oilfield reinjection water scale inhibitor and preparation method thereof |
| CN104531378A (en) * | 2014-12-29 | 2015-04-22 | 江苏健神生物农化有限公司 | Heavy-oil delivery pipeline cleaning agent and preparation method thereof |
| CN105000683A (en) * | 2015-07-10 | 2015-10-28 | 杨红微 | Phosphorus-free, green and environment-friendly slow-release scale inhibitor |
-
2016
- 2016-10-13 CN CN201610891492.7A patent/CN106315877A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102117025A (en) * | 2009-12-30 | 2011-07-06 | 安集微电子（上海）有限公司 | Photoresist detergent composition |
| CN103498163A (en) * | 2013-10-16 | 2014-01-08 | 合肥华清金属表面处理有限责任公司 | Environment-friendly seawater corrosion inhibitor containing plant extracts and preparation method for environment-friendly seawater corrosion inhibitor |
| CN104230016A (en) * | 2014-09-07 | 2014-12-24 | 无棣华信石油技术服务有限公司 | Oilfield reinjection water scale inhibitor and preparation method thereof |
| CN104531378A (en) * | 2014-12-29 | 2015-04-22 | 江苏健神生物农化有限公司 | Heavy-oil delivery pipeline cleaning agent and preparation method thereof |
| CN105000683A (en) * | 2015-07-10 | 2015-10-28 | 杨红微 | Phosphorus-free, green and environment-friendly slow-release scale inhibitor |
Non-Patent Citations (6)
| Title |
|---|
| 刘益军: "《聚氨酯原料及助剂手册（第二版）》", 31 January 2013, 化学工业出版社 * |
| 李和平等: "《精细化工工艺学》", 31 August 1997, 科学出版社 * |
| 王文广等: "《塑料配方设计》", 31 July 2007, 化学工业出版社 * |
| 雷永乐: "《糖尿病食疗》", 31 December 2007, 广东人民出版社 * |
| 黄玉媛等: "《精细化工配方研究与产品配制技术（上册）》", 30 June 2003, 广东科技出版社 * |
| 黎樵燊等: "《表面工程》", 30 November 2001, 中国科学技术出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105199706A (en) | Organic zirconium crosslinking agent applicable to polymer fracturing fluid system and preparation method of organic zirconium crosslinking agent | |
| CN104927816B (en) | A kind of organic profile control agent and preparation method thereof and purposes | |
| CN101314713A (en) | Controllable-viscosity acid liquor system for carbonatite container horizon acid fracturing | |
| CN108865092B (en) | Slow-release chelating acid for water injection well plugging removal and injection increase, preparation method and plugging removal and injection increase method | |
| CN107523287A (en) | A kind of combined high temperature acidification corrosion inhibitor based on pyridines quaternary ammonium salt | |
| CN102373037B (en) | Novel biological blockage removing solution for well completion, and production method thereof | |
| CN104312573A (en) | Crosslinking-free emulsion thickener for fracturing and preparation method thereof | |
| WO2015089885A1 (en) | Seawater-based quick-dissolving fracturing liquid and preparation method therefor | |
| CN105295886A (en) | Composite retarded acid | |
| CN106479477A (en) | A kind of encapsulating solids acid and its preparation and application | |
| CN107011873B (en) | adjustable delayed heat generation chemical composition and blockage removal and paraffin removal method thereof | |
| CN106045372A (en) | Polycarboxylate superplasticizer special for concrete and for doping of basalt stone powder in concrete and preparation method thereof | |
| CN107216865B (en) | Self-diverting acidizing fluid and preparation method and application thereof | |
| CN103130953A (en) | Preparation method of drilling-fluid-use high-temperature-resistant saturated-salt-resistant filtrate loss reducer | |
| CN102775969B (en) | Multifunctional filtrate reducer and preparation method thereof | |
| CN107418547B (en) | High-temperature acidizing corrosion inhibitor based on tribenzyl- (2-benzyl) pyridinium ammonium chloride | |
| CN106315877A (en) | Corrosion and scale inhibitor for oil field as well as preparation method and application of corrosion and scale inhibitor | |
| CN107987812A (en) | A kind of workover fluid and preparation method thereof | |
| CN105238379B (en) | A kind of long-acting corrosion inhibiter of acidification of gas well and its preparation method and application method | |
| CN107162464A (en) | A kind of cement grinding aid | |
| CN108048069A (en) | A kind of preparation method of high temperature resistant fracturing fluid compositions | |
| CN104293325A (en) | Viscosity reducer for drilling fluid and preparation method thereof | |
| CN111440667A (en) | Titanium heat exchanger silica scale cleaning agent | |
| CN103757891A (en) | Formaldehyde catching agent for fabrics and preparation method thereof | |
| CN109385258B (en) | Modified brine workover fluid and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170111 |