CN101215464A - Bottom hole sedimentation type anti-scaling anti-wax agent - Google Patents
Bottom hole sedimentation type anti-scaling anti-wax agent Download PDFInfo
- Publication number
- CN101215464A CN101215464A CNA2007101449304A CN200710144930A CN101215464A CN 101215464 A CN101215464 A CN 101215464A CN A2007101449304 A CNA2007101449304 A CN A2007101449304A CN 200710144930 A CN200710144930 A CN 200710144930A CN 101215464 A CN101215464 A CN 101215464A
- Authority
- CN
- China
- Prior art keywords
- wax
- scaling
- lae
- inhibitor
- paraffin
- 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.)
- Granted
Links
Landscapes
- Detergent Compositions (AREA)
Abstract
The invention relates to a well bottom sedimentation-type antiscale paraffin inhibitor. The well bottom sedimentation-type anti-scaling anti-wax agent is composed of following components, the following each component is proportioned according to weight by parts, the components are weighting admixture, antiscale agent and paraffin inhibitor, wherein the mass ratio of the admixture: the antiscale agent : the paraffin inhibitor is 2-5:16-38:57-80. The aim of anti-scaling and paraffin inhibiting can be reached through sinking solid shapes which is made of the antiscale anti-wax agent into well bottom.
Description
Technical field:
The present invention relates to the used a kind of chemical reagent in oil recovery field, oil field, particularly a kind of bottom hole sedimentation type anti-scaling anti-wax agent.
Background technology:
At present, no matter be oil recovery, waterflooding, still in the various operations that improve recovery ratio, as long as there is water to exist, the production site of each in oil recovery process all may produce corresponding inorganic salt fouling at any time so, and these dirts are referred to as the oil field dirt.The oil field that has is mixed the precipitating thing with wax, pitch, gelationus and is commonly called as and is organic deposition, will shake out and the mixture of organic deposition is commonly called as and is dirt, also has bacterium dirt etc.The main way of antiscale is to use scale inhibitor in the prior art, and scale inhibitor is various in style, and oil field scale inhibitor commonly used can be classified by molecular structure, mainly contains inorganic polyphosphate scale inhibitor, polymkeric substance scale inhibitor, organic phosphine scale inhibitor.In all kinds of scale inhibitors, contain the phosphine scale inhibitor and occupy significant proportion, when using as single agent, its antiscale efficient is higher; In the scale inhibitor of compound prescription, it has collaborative or synergism.But P contained compound is a biological nutrition composition such as algae in the various water bodys; can impel algae breed rapidly the growth and cover on the water surface; this process has consumed oxygen limited in the water; make in the water a lot of useful biologies that comprise fish suffer from " suffocating "; and aqueous metamorphism is fouled, this is a kind of threat to environment protection.Along with the enhancing of people's environmental consciousness, green scale inhibitor without phosphorus or the limit phosphine is a developing direction from now on.
At present, main hot-washing wax remover and two kinds of forms of paraffin control with inhibitor of adopting on control and remove of well paraffin technology.Paraffin control with inhibitor is the main trend of the clear wax control technological development in oil field, and the mode of generally taking at present to add the liquid paraffin inhibitor chemical from oil sets annular space is carried out wax control.But also there are some drawbacks in paraffin control with inhibitor: the one, and paraffin inhibitor chemical concentration changes in pit shaft greatly, easily causes coming off in batch of wax, causes Ka Jing; The 2nd, high or in the certain depth scope, have the oil well of dead oil cap for the part working fluid level, even add paraffin inhibitor chemical, also be difficult to arrive the shaft bottom by annular space, play the wax control effect.Wherein most in addition products are modifications on traditional paraffin remover and composite, have deficiencies such as performance is single, efficient is lower, selectivity, storage stability, poor stability in varying degrees.
Summary of the invention:
In order to solve the problem in the background technology, the invention provides a kind of bottom hole sedimentation type anti-scaling anti-wax agent, this anti-scale wax-preventing agent is made solid shape and is sunk to the purpose that the shaft bottom reaches the antiscale wax control.
Technical scheme of the present invention is: this bottom hole sedimentation type anti-scaling anti-wax agent is made up of following component, following each component by weight ratio, component is weighting agent, scale inhibitor and paraffin inhibitor chemical, weighting agent: scale inhibitor: paraffin inhibitor chemical is 2～5: 16～38: 57～80.
Above-mentioned weighting agent is NH
4C1, KCl, FeCl
3, KNO
3, ZnCl
2In any one or several arbitrarily; Paraffin inhibitor chemical be in EVA, LDPE, sodium alkyl sulfate, sodium alkyl benzene sulfonate, oil-soluble Ninol, the water miscible Ninol any one or several arbitrarily; Scale inhibitor be among HEDP (1-Hydroxy Ethylidene-1,1-Diphosphonic Acid), tripoly phosphate sodium STPP, PBTCA (2-phosphonic acids butane-1,2,4 tricarboxylic acid), the ATMP (Amino Trimethylene Phosphonic Acid) any one or several arbitrarily; Weighting agent is ZnCl
2, paraffin inhibitor chemical is EVA, scale inhibitor is an Amino Trimethylene Phosphonic Acid; Weighting agent ZnCl
2, scale inhibitor Amino Trimethylene Phosphonic Acid and paraffin inhibitor chemical EVA weight percent be 3: 22: 75.
The present invention has following beneficial effect: the present invention is according to wax deposition, the fouling rule of oil well, adopt such scheme, the slowly-releasing characteristics of some macromolecule chemical materials have been utilized, selected a kind of weighting agent, make solid density bigger, and make the solid shape of requirement, so just can directly from oil sets annular space, add this solid than water, make this solid sink to the shaft bottom, slowly dissolve and give full play to the effect of its wax-proof anti-scaling with the flushing of shaft bottom oil stream.Wax control and antiscale component under the dissolving can affact oil pipe and oil well pump inside fully, can effectively suppress the assembly of wax molecule grows up and dirty deposition, make brilliant particle of wax and dirt keep small dispersion state, flow output ground with oil, thereby reach antiscale wax control purpose.
Embodiment:
The invention will be further described below in conjunction with accompanying drawing:
The evaluation method of the scale inhibitor among the following embodiment according to the evaluation method of SY-T5673-1993 " oil field with scale inhibitor assessment of performance method ", paraffin inhibitor chemical according to SY-T6300-1997 " recover the oil and use the wax removing agent general technical specifications ".
Embodiment 1, the beaker heating that is placed with EVA28-150 (ethylene-vinyl acetate copolymer), on one side heating, with glass stick it is disperseed on one side, help adhering to more high-density weighting material, and make it can uniform mixing.During to 160 ℃ of left and right sides, the solid paraffin control piece dissolves, and at this moment scale inhibitor and weighting agent is sprinkling upon the surface of preventing wax stone uniformly, after heating for some time, the surface-area of anti-wax stone is tailed off, last sharply cooling, just can produce in process of cooling needs the wax-proof anti-scaling of shape piece.Weighting agent ZnCl
2, the mass ratio between scale inhibitor ATMP (Amino Trimethylene Phosphonic Acid), the paraffin inhibitor chemical EVA28-150 (ethylene-vinyl acetate copolymer) is 3: 22: 75.The wax-proof anti-scaling piece of producing is named as LAE.It is about 1.13g/cm for faint yellow, density
3Globular solids.Performance evaluation sees Table 1 and table 2:
EDTA that consumes during Different L AE concentration and antiscale counting rate meter 1
| V 0 | V 1 | LAE(25mg/L) | LAE(40mg/L) | LAE(50mg/L) | LAE(70mg/L) | |
| The volume of EDTA (mL) | 7.8 | 2.00 | 6.69 | 7.22 | 7.39 | 7.42 |
| Scale inhibition performance (%) | - | 80.86 | 90.0 | 92.93 | 93.5 |
Wax control counting rate meter 2 during Different L AE concentration
| The quality of LAE (g) | Empty cup quality (g) | Reaction back quality (g) | The quality of wax deposition (g) | Inhibiting rate for wax precipitation IE (%) |
| 0 | 35.78 | 37.26 | 1.50 | 0 |
| 1.25 | 35.44 | 36.17 | 0.73 | 51.33 |
| 2.0 | 45.39 | 46.05 | 0.70 | 53.33 |
| 2.5 | 44.52 | 44.98 | 0.64 | 57.33 |
| 3.5 | 46.46 | 46.93 | 0.57 | 62.00 |
In sum, freshly prepd LAE's has an antiscale wax control result preferably.When the LAE mass concentration is 70mg/L, the antiscaling rate of calcium carbonate scale has been reached 93.5%, inhibiting rate for wax precipitation 62.0%.
Embodiment 2, with weighting agent KNO
3, scale inhibitor 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, paraffin inhibitor chemical LDPE (new LDPE (film grade) 0.91～0.925) be that 4: 19: 76 ratio is made the wax-proof anti-scaling piece in mass ratio.The wax-proof anti-scaling piece of producing is named as LAE-1.It is flaxen globular solids.Performance evaluation sees Table 3:
Antiscaling rate during Different L AE-1 concentration and wax control counting rate meter 3
| LAE-1 (25mg/L) | LAE-1 (40mg/L) | LAE-1 (50mg/L) | LAE-1 (70mg/L) | |
| Scale inhibition performance (%) | 80.6 | 89.4 | 91.7 | 92.7 |
| Inhibiting rate for wax precipitation (%) | 51.23 | 52.49 | 57.08 | 61.8 |
In sum, freshly prepd LAE-1's has an antiscale wax control result preferably.When the LAE mass concentration is 70mg/L, the antiscaling rate of calcium carbonate scale has been reached 92.7%, inhibiting rate for wax precipitation 61.8%.
Embodiment 3, with weighting agent FeCl
3, scale inhibitor tripoly phosphate sodium STPP, paraffin inhibitor chemical sodium lauryl sulphate be that 4: 16: 80 ratio is made the wax-proof anti-scaling piece by mass percentage.The wax-proof anti-scaling piece of producing is named as LAE-2.It is flaxen globular solids.Performance evaluation sees Table 4:
Antiscaling rate during Different L AE-2 concentration and wax control counting rate meter 4
| LAE-2 (25mg/L) | LAE-2 (40mg/L) | LAE-2 (50mg/L) | LAE-2 (70mg/L) | |
| Scale inhibition performance (%) | 80.7 | 89.67 | 91.75 | 92.91 |
| Inhibiting rate for wax precipitation (%) | 52.43 | 53.45 | 57.58 | 61.9 |
In sum, freshly prepd LAE-2's has an antiscale wax control result preferably.When the LAE-2 mass concentration is 70mg/L, the antiscaling rate of calcium carbonate scale has been reached 92.91%, inhibiting rate for wax precipitation 61.9%.
Embodiment 4, be to make the wax-proof anti-scaling piece at 4: 24: 72 by mass ratio with weighting agent KCl, scale inhibitor PBTCA (2-phosphonic acids butane-1,2,4 tricarboxylic acid), paraffin inhibitor chemical Sodium dodecylbenzene sulfonate.The wax-proof anti-scaling piece of producing is named as LAE-3.It is flaxen globular solids.Performance evaluation sees Table 5:
Antiscaling rate during Different L AE-3 concentration and wax control counting rate meter 5
| LAE-3 (25mg/L) | LAE-3(40mg/L) | LAE-3 (50mg/L) | LAE-3 (70mg/L) | |
| Scale inhibition performance (%) | 81.5 | 89.8 | 91.6 | 92.1 |
| Inhibiting rate for wax precipitation (%) | 52.4 | 53.5 | 57.7 | 61.9 |
In sum, freshly prepd LAE-3's has an antiscale wax control result preferably.When the LAE-3 mass concentration is 70mg/L, the antiscaling rate of calcium carbonate scale has been reached 93.1%, inhibiting rate for wax precipitation 61.9%.
Embodiment 5, with weighting agent NH
4C1, scale inhibitor ATMP (Amino Trimethylene Phosphonic Acid), the oil-soluble Ninol of paraffin inhibitor chemical are to make the wax-proof anti-scaling piece at 5: 38: 57 by mass ratio.The wax-proof anti-scaling piece of producing is named as LAE-4.It is flaxen globular solids.Performance evaluation sees Table 5:
Antiscaling rate during Different L AE-4 concentration and wax control counting rate meter 6
| LAE-4 (25mg/L) | LAE-4(40mg/L) | LAE-4(50mg/L) | LAE-4(70mg/L) | |
| Scale inhibition performance (%) | 81.3 | 89.5 | 91.5 | 92.6 |
| Inhibiting rate for wax precipitation (%) | 52.1 | 53.2 | 57.4 | 61.1 |
In sum, freshly prepd LAE-4's has an antiscale wax control result preferably.When the LAE-4 mass concentration is 70mg/L, the antiscaling rate of calcium carbonate scale has been reached 92.6%, inhibiting rate for wax precipitation 61.1%.
Embodiment 6, with weighting agent ZnCl
2, scale inhibitor ATMP (Amino Trimethylene Phosphonic Acid), the water miscible Ninol of paraffin inhibitor chemical be to make the wax-proof anti-scaling piece at 2: 24: 74 by mass ratio.The wax-proof anti-scaling piece of producing is named as LAE-5.It is flaxen globular solids.Performance evaluation sees Table 6:
Antiscaling rate during Different L AE-5 concentration and wax control counting rate meter 7
| LAE-5(25mg/L) | LAE-5(40mg/L) | LAE-5(50mg/L) | LAE-5(70mg/L) | |
| Scale inhibition performance (%) | 81.1 | 89.2 | 91.3 | 92.4 |
| Inhibiting rate for wax precipitation (%) | 52.0 | 53.1 | 57.2 | 61.0 |
In sum, freshly prepd LAE-5's has an antiscale wax control result preferably.When the LAE-5 mass concentration is 70mg/L, the antiscaling rate of calcium carbonate scale has been reached 92.4%, inhibiting rate for wax precipitation 61.0%.
Claims (4)
1. bottom hole sedimentation type anti-scaling anti-wax agent is characterized in that: form by following component, following each component by weight ratio, component is weighting agent, scale inhibitor and paraffin inhibitor chemical, weighting agent: scale inhibitor: paraffin inhibitor chemical is 2～5: 16～38: 57～80.
2. bottom hole sedimentation type anti-scaling anti-wax agent according to claim 1 is characterized in that: weighting agent is NH
4Cl, KCl, FeCl
3, KNO
3, ZnCl
2In any one or several arbitrarily; Paraffin inhibitor chemical be in EVA, LDPE, sodium alkyl sulfate, sodium alkyl benzene sulfonate, oil-soluble Ninol, the water miscible Ninol any one or several arbitrarily; Scale inhibitor be among 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, tripoly phosphate sodium STPP, PBTCA, the ATMP any one or several arbitrarily.
3. bottom hole sedimentation type anti-scaling anti-wax agent according to claim 1 is characterized in that: weighting agent is ZnCl
2, paraffin inhibitor chemical is EVA28-150, scale inhibitor is an Amino Trimethylene Phosphonic Acid.
4. bottom hole sedimentation type anti-scaling anti-wax agent according to claim 1 is characterized in that: weighting agent ZnCl
2, scale inhibitor Amino Trimethylene Phosphonic Acid and paraffin inhibitor chemical EVA28-150 weight ratio be 3: 22: 75.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101449304A CN100560682C (en) | 2007-12-27 | 2007-12-27 | A kind of bottom hole sedimentation type anti-scaling anti-wax agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101449304A CN100560682C (en) | 2007-12-27 | 2007-12-27 | A kind of bottom hole sedimentation type anti-scaling anti-wax agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101215464A true CN101215464A (en) | 2008-07-09 |
| CN100560682C CN100560682C (en) | 2009-11-18 |
Family
ID=39621975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101449304A Expired - Fee Related CN100560682C (en) | 2007-12-27 | 2007-12-27 | A kind of bottom hole sedimentation type anti-scaling anti-wax agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100560682C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104861087A (en) * | 2015-05-12 | 2015-08-26 | 西南石油大学 | Novel star-shaped wax crystal modifier and synthetic method thereof |
| CN104962266A (en) * | 2015-06-17 | 2015-10-07 | 成都高普石油工程技术有限公司 | Oil well cleaning scale inhibitor |
| CN107652956A (en) * | 2017-10-16 | 2018-02-02 | 中国石油化工股份有限公司 | The phase inversion agent system and its application method of a kind of wet crude |
| CN108467717A (en) * | 2018-04-26 | 2018-08-31 | 威海翔泽新材料科技有限公司 | Water based dewaxing agent and preparation method thereof |
| CN109536147A (en) * | 2018-12-05 | 2019-03-29 | 江苏华扬液碳有限责任公司 | A kind of oil well efficient, emulsion-type paraffin remover of safety and preparation method thereof |
| CN109762545A (en) * | 2019-02-27 | 2019-05-17 | 中国石油天然气股份有限公司长庆油田分公司第十二采油厂 | A kind of well wellbore deep play acting type Wax removing agent and preparation method thereof |
| CN109837077A (en) * | 2019-03-13 | 2019-06-04 | 西安石油大学 | A kind of rubber wax ball clearing supporting wax-proofing agent and preparation method thereof, preparation facilities and application |
| CN113480700A (en) * | 2021-07-01 | 2021-10-08 | 海南恒建沥青路面有限公司 | Solid asphaltene inhibitor and preparation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5922652A (en) * | 1992-05-05 | 1999-07-13 | Procter & Gamble | Microencapsulated oil field chemicals |
| US7135440B2 (en) * | 2002-08-20 | 2006-11-14 | Baker Hughes Incorporated | Method for controlled placement of oilfield chemicals and composition useful for practicing same |
| CN1216121C (en) * | 2003-02-25 | 2005-08-24 | 大庆油田有限责任公司 | Acidification blocking remover of sandstone thin difference oil layer compound acid |
| CN1220749C (en) * | 2003-07-22 | 2005-09-28 | 大庆油田有限责任公司 | Solid wax-resisting scale inhibitor for well |
| CN1775895A (en) * | 2005-12-19 | 2006-05-24 | 大庆石油管理局 | Oil-soluble oil well solid slow-release anti-scale wax-preventing agent |
-
2007
- 2007-12-27 CN CNB2007101449304A patent/CN100560682C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104861087A (en) * | 2015-05-12 | 2015-08-26 | 西南石油大学 | Novel star-shaped wax crystal modifier and synthetic method thereof |
| CN104861087B (en) * | 2015-05-12 | 2017-03-08 | 西南石油大学 | A kind of new star wax crystal modifier and its synthetic method |
| CN104962266A (en) * | 2015-06-17 | 2015-10-07 | 成都高普石油工程技术有限公司 | Oil well cleaning scale inhibitor |
| CN107652956A (en) * | 2017-10-16 | 2018-02-02 | 中国石油化工股份有限公司 | The phase inversion agent system and its application method of a kind of wet crude |
| CN108467717A (en) * | 2018-04-26 | 2018-08-31 | 威海翔泽新材料科技有限公司 | Water based dewaxing agent and preparation method thereof |
| CN109536147A (en) * | 2018-12-05 | 2019-03-29 | 江苏华扬液碳有限责任公司 | A kind of oil well efficient, emulsion-type paraffin remover of safety and preparation method thereof |
| CN109762545A (en) * | 2019-02-27 | 2019-05-17 | 中国石油天然气股份有限公司长庆油田分公司第十二采油厂 | A kind of well wellbore deep play acting type Wax removing agent and preparation method thereof |
| CN109762545B (en) * | 2019-02-27 | 2021-03-02 | 中国石油天然气股份有限公司长庆油田分公司第十二采油厂 | Oil well shaft deep-acting wax removing and preventing agent and preparation method thereof |
| CN109837077A (en) * | 2019-03-13 | 2019-06-04 | 西安石油大学 | A kind of rubber wax ball clearing supporting wax-proofing agent and preparation method thereof, preparation facilities and application |
| CN109837077B (en) * | 2019-03-13 | 2021-02-19 | 西安石油大学 | Wax inhibitor-supported rubber paraffin removal ball and preparation method, preparation device and application thereof |
| CN113480700A (en) * | 2021-07-01 | 2021-10-08 | 海南恒建沥青路面有限公司 | Solid asphaltene inhibitor and preparation method thereof |
| CN113480700B (en) * | 2021-07-01 | 2022-06-14 | 海南恒建沥青路面有限公司 | Solid asphaltene inhibitor and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100560682C (en) | 2009-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100560682C (en) | A kind of bottom hole sedimentation type anti-scaling anti-wax agent | |
| US8821646B1 (en) | Compositions and methods for cleaning and preventing plugging in micro-irrigation systems | |
| CA2794938A1 (en) | Scale inhibitor | |
| JPH0575720B2 (en) | ||
| CN102492952A (en) | Phosphorus-free degreasing powder, production process and phosphorus-free degreasing process thereof | |
| JP6621930B2 (en) | Eco-friendly snow removal composition comprising a starfish-derived porous structure | |
| CN102250604A (en) | Controlled releasing microcapsule for scale prevention, wax prevention or viscosity reduction of oil well | |
| CN101838526B (en) | Corrosion-inhibiting, scale-removing and scale-preventing agent for oil well | |
| CN103787515A (en) | Method for peeling biological slime in circulating cooling water system | |
| CN103923630A (en) | Emulsion antiwax remover | |
| CN102899013A (en) | Clastic sandstone gas reservoir acidizing fluid | |
| Popov et al. | DLS study of a phosphonate induced gypsum scale inhibition mechanism using indifferent nanodispersions as the standards for light scattering intensity comparison | |
| Walworth | Using gypsum and other calcium amendments in southwestern soils | |
| CN115287051A (en) | Sterilization scale inhibition foam scrubbing agent applied to exploitation of shale gas and conventional natural gas well | |
| Gomez et al. | Phosphate mobility at the sediment–water interface of a Mediterranean lagoon (etang du Mejean), seasonal phosphate variation | |
| CN103819011B (en) | Corrosion and scale inhibitor for oil and gas fields and petrochemical industry | |
| Antheunisse et al. | Regional differences in nutrient limitation in floodplains of selected European rivers: implications for rehabilitation of characteristic floodplain vegetation | |
| CN101333133B (en) | High concentration compound fertilizer for drip irrigation | |
| US10493499B1 (en) | Method for cleaning and preventing plugging in micro-irrigation systems | |
| Simons | Field ecology of freshwater macroalgae in pools and ditches, with special attention to eutrophication | |
| CN106350047B (en) | A kind of oil gas field corrosion inhibiter and preparation method thereof | |
| CA2966625A1 (en) | Device for improving the chemical and physical properties of water and methods of using same | |
| CN104086005B (en) | A kind of phosphate rock floating device scale remover and preparation method | |
| KR20060103311A (en) | Composition to eliminate red tide | |
| JP2003000091A (en) | Humic acid feeder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091118 Termination date: 20161227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |