CN105419761A - Modifying agent for preventing calcium halide scaling - Google Patents
Modifying agent for preventing calcium halide scaling Download PDFInfo
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- CN105419761A CN105419761A CN201510906322.7A CN201510906322A CN105419761A CN 105419761 A CN105419761 A CN 105419761A CN 201510906322 A CN201510906322 A CN 201510906322A CN 105419761 A CN105419761 A CN 105419761A
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- fouling
- parts
- properties
- correcting agent
- calcium halogen
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
- C09K8/528—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning inorganic depositions, e.g. sulfates or carbonates
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/32—Anticorrosion additives
Abstract
The invention discloses a modifying agent for preventing calcium halide scaling. The modifying agent is prepared from, by mass, 15-25 parts of amino trimethylene phosphonic acid, 4-8 parts of docusate sodium, 2-3 parts of cetyltrimethylammonium chloride, 0.1-0.3 part of tributyl phosphate and the balance water. The modifying agent has the advantages of being high in scaling resistance, small in use amount, easy to construct, not capable of increasing operation workloads, high in flow-back capacity, capable of saving cost, and the like.
Description
Technical field
The present invention relates to technical field of petroleum extraction, particularly relate to a kind of properties-correcting agent stoping the fouling of calcium halogen.
Background technology
In oilfield development process, workover treatment is a kind of important means keeping recovery well production capacity, slow down natural depletion.Need to use well control fluid to carry out equilibrium strata pressure in its operation process, calcium halogen has certain application percentage as well control fluid.
Calcium halogen has certain clay swelling inhibition, cheap, the more high advantage of density as well control fluid application.But all reflect in its use procedure, easily cause formation scaling, usually cause blocking; Enter meeting and resident fluid generation emulsifying effect behind stratum, at middle low permeability layer, also can form water blocking damage, cause subterranean formation production to decline; The fouling of higher salinity and formation simultaneously can make tube corrosion aggravate, and the dirty layer quality of formation is hard, adhere firmly, is difficult to remove, and easily cause the problems such as stifled pump occurs, having a strong impact on production normally carries out, and adds production cost.
Summary of the invention
For the defect that prior art exists, the invention provides a kind of properties-correcting agent stoping the fouling of calcium halogen, utilize the effect of number of chemical component, stop the fouling of calcium halogen well control fluid, solve the formation scaling, the blocking that occur when current calcium halogen apply as well control fluid and corrode the problems such as aggravation.
This application provides a kind of properties-correcting agent stoping the fouling of calcium halogen, its composition quality formula consists of:
Amino Trimethylene Phosphonic Acid 15-25 part, dioctyl sodium sulphosuccinate 4-8 part, palmityl trimethyl ammonium chloride 2-3 part, tributyl phosphate 0.1-0.3 part, all the other are water.
Preferably, described water is specially distilled water.
Preferably, the composition quality formula composition of the properties-correcting agent of described prevention calcium halogen fouling, is specially:
Amino Trimethylene Phosphonic Acid 20 parts, dioctyl sodium sulphosuccinate 5 parts, palmityl trimethyl ammonium chloride 2 parts, tributyl phosphate 0.2 part, distilled water 72.8 parts.
Preferably, the composition quality formula composition of the properties-correcting agent of described prevention calcium halogen fouling, is specially:
Amino Trimethylene Phosphonic Acid 15 parts, dioctyl sodium sulphosuccinate 8 parts, palmityl trimethyl ammonium chloride 3 parts, tributyl phosphate 0.3 part, distilled water 73.7 parts.
Preferably, the composition quality formula composition of the properties-correcting agent of described prevention calcium halogen fouling, is specially:
Amino Trimethylene Phosphonic Acid 25 parts, dioctyl sodium sulphosuccinate 4 parts, palmityl trimethyl ammonium chloride 2 parts, tributyl phosphate 0.1 part, distilled water 68.9 parts.
Preferably, if described Amino Trimethylene Phosphonic Acid is liquid reagent, then described Amino Trimethylene Phosphonic Acid content need be greater than 50%.
Preferably, if described palmityl trimethyl ammonium chloride is liquid reagent, then described palmityl trimethyl ammonium chloride content need be greater than 70%.
Preferably, if described tributyl phosphate is as liquid reagent, then described tributyl phosphate content need be greater than 99%.
The one or more technical schemes provided in the embodiment of the present application, at least have following technique effect or advantage:
1, in the embodiment of the present application, the properties-correcting agent of described prevention calcium halogen fouling has prevention fouling performance by force, low-consuming advantage.In use, be that 1% ~ 3% (mass percent concentration) is dissolved in calcium halogen well control fluid with concentration, extraordinary prevention fouling effect can be realized.
2, in the embodiment of the present application, the properties-correcting agent of described prevention calcium halogen fouling has construction simply, does not increase the advantage of work operations amount.This product and the direct mixed dissolution of calcium halogen well control fluid can use, and dissolution rate is fast, does not need extra operation process, save workover fluid configuration setup time and expense.
3, in the embodiment of the present application, the properties-correcting agent of described prevention calcium halogen fouling has the strong advantage of the row's of returning ability.This product can greatly reduce oil water interfacial tension, in use effectively can reduce the oil water interfacial tension of calcium halogen well control fluid, improves the row's of returning performance of well control fluid.
4, in the embodiment of the present application, the properties-correcting agent of described prevention calcium halogen fouling has cost-saving advantage.Be exacerbated to the workover fluid of same density with organic salt compared with, can more than 50% be saved.
Embodiment
Embodiments provide a kind of properties-correcting agent stoping the fouling of calcium halogen, be mainly used in the workover treatment in oilfield development process, utilize the effect of number of chemical component, stop the fouling of calcium halogen well control fluid, solve the formation scaling, the blocking that occur when current calcium halogen apply as well control fluid and corrode the problems such as aggravation.
The technical scheme of the embodiment of the present application is for solving the problems of the technologies described above, and general thought is as follows:
Stop a properties-correcting agent for calcium halogen fouling, its formula consists of: Amino Trimethylene Phosphonic Acid 15-25 part, dioctyl sodium sulphosuccinate 4-8 part, palmityl trimethyl ammonium chloride 2-3 part, tributyl phosphate 0.1-0.3 part, all the other are water (distilled water).
In order to better understand technique scheme, below in conjunction with concrete embodiment, technique scheme is described in detail.
Embodiment one
Present embodiments provide a kind of properties-correcting agent stoping the fouling of calcium halogen, its formula consists of: Amino Trimethylene Phosphonic Acid 15-25 part, dioctyl sodium sulphosuccinate 4-8 part, palmityl trimethyl ammonium chloride 2-3 part, tributyl phosphate 0.1-0.3 part, all the other are water (distilled water).
For example, according to mass fraction Amino Trimethylene Phosphonic Acid 20 parts, dioctyl sodium sulphosuccinate 5 parts, palmityl trimethyl ammonium chloride 2 parts, tributyl phosphate 0.2 part, the configuration proportion that distilled water is 72.8 parts prepares the properties-correcting agent 5kg of this prevention calcium halogen fouling.During application by the properties-correcting agent of this prevention calcium halogen fouling according to 2% ratio be mixed in calcium halogen workover fluid, be injected in well with workover fluid cementing truck.Its interfacial tension of indoor test is 5.82mN/m, and anti-dilative is 96%, and scale inhibition performance is 97.1%.
For example, according to mass fraction Amino Trimethylene Phosphonic Acid 15 parts, dioctyl sodium sulphosuccinate 8 parts, palmityl trimethyl ammonium chloride 3 parts, tributyl phosphate 0.3 part, the configuration proportion that distilled water is 73.7 parts prepares the properties-correcting agent 5kg of this prevention calcium halogen fouling.During application by the properties-correcting agent of this prevention calcium halogen fouling according to 3% ratio be mixed in calcium halogen workover fluid, be injected in well with workover fluid cementing truck.Its interfacial tension of indoor test is 4.22mN/m, and anti-dilative is 97%, and scale inhibition performance is 97.7%.
For example, according to mass fraction Amino Trimethylene Phosphonic Acid 25 parts, dioctyl sodium sulphosuccinate 4 parts, palmityl trimethyl ammonium chloride 2 parts, tributyl phosphate 0.1 part, the configuration proportion that distilled water is 68.9 parts prepares the properties-correcting agent 5kg of this prevention calcium halogen fouling.During application by the properties-correcting agent of this prevention calcium halogen fouling according to 1% ratio be mixed in calcium halogen workover fluid, be injected in well with workover fluid cementing truck.Its interfacial tension of indoor test is 7.13mN/m, and anti-dilative is 94%, and scale inhibition performance is 95.4%.
Material used by this formula all can commercially be bought.Wherein, distilled water is used for dissolving and other raw material that suspends as solvent, uses conventional tests room distilled water.Amino Trimethylene Phosphonic Acid is as lattice distortion agent, if liquid reagent, Amino Trimethylene Phosphonic Acid content need be greater than 50%.Palmityl trimethyl ammonium chloride is as tensio-active agent, if liquid reagent, palmityl trimethyl ammonium chloride content need be greater than 70%.Tributyl phosphate is as defoamer, if liquid reagent, tributyl phosphate content need be greater than 99%.
Technical scheme in above-described embodiment, at least has following technique effect or advantage:
1, in the embodiment of the present application, the properties-correcting agent of described prevention calcium halogen fouling has prevention fouling performance by force, low-consuming advantage.In use, be that 1% ~ 3% (mass percent concentration) is dissolved in calcium halogen well control fluid with concentration, extraordinary prevention fouling effect can be realized.
2, in the embodiment of the present application, the properties-correcting agent of described prevention calcium halogen fouling has construction simply, does not increase the advantage of work operations amount.This product and the direct mixed dissolution of calcium halogen well control fluid can use, and dissolution rate is fast, does not need extra operation process, save workover fluid configuration setup time and expense.
3, in the embodiment of the present application, the properties-correcting agent of described prevention calcium halogen fouling has the strong advantage of the row's of returning ability.This product can greatly reduce oil water interfacial tension, in use effectively can reduce the oil water interfacial tension of calcium halogen well control fluid, improves the row's of returning performance of well control fluid.
4, in the embodiment of the present application, the properties-correcting agent of described prevention calcium halogen fouling has cost-saving advantage.Be exacerbated to the workover fluid of same density with organic salt compared with, can more than 50% be saved.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (8)
1. stop a properties-correcting agent for calcium halogen fouling, it is characterized in that, the composition quality formula of the properties-correcting agent of described prevention calcium halogen fouling consists of:
Amino Trimethylene Phosphonic Acid 15-25 part, dioctyl sodium sulphosuccinate 4-8 part, palmityl trimethyl ammonium chloride 2-3 part, tributyl phosphate 0.1-0.3 part, all the other are water.
2. the properties-correcting agent stoping the fouling of calcium halogen as claimed in claim 1, it is characterized in that, described water is specially distilled water.
3. the properties-correcting agent stoping the fouling of calcium halogen as claimed in claim 2, is characterized in that the composition quality formula composition of the properties-correcting agent of described prevention calcium halogen fouling, is specially:
Amino Trimethylene Phosphonic Acid 20 parts, dioctyl sodium sulphosuccinate 5 parts, palmityl trimethyl ammonium chloride 2 parts, tributyl phosphate 0.2 part, distilled water 72.8 parts.
4. the properties-correcting agent stoping the fouling of calcium halogen as claimed in claim 2, is characterized in that, the composition quality formula composition of the properties-correcting agent of described prevention calcium halogen fouling, is specially:
Amino Trimethylene Phosphonic Acid 15 parts, dioctyl sodium sulphosuccinate 8 parts, palmityl trimethyl ammonium chloride 3 parts, tributyl phosphate 0.3 part, distilled water 73.7 parts.
5. the properties-correcting agent stoping the fouling of calcium halogen as claimed in claim 2, is characterized in that, the composition quality formula composition of the properties-correcting agent of described prevention calcium halogen fouling, is specially:
Amino Trimethylene Phosphonic Acid 25 parts, dioctyl sodium sulphosuccinate 4 parts, palmityl trimethyl ammonium chloride 2 parts, tributyl phosphate 0.1 part, distilled water 68.9 parts.
6. the properties-correcting agent of the prevention calcium halogen fouling as described in as arbitrary in Claims 1 to 5, it is characterized in that, if described Amino Trimethylene Phosphonic Acid is liquid reagent, then described Amino Trimethylene Phosphonic Acid content need be greater than 50%.
7. the properties-correcting agent of the prevention calcium halogen fouling as described in as arbitrary in Claims 1 to 5, it is characterized in that, if described palmityl trimethyl ammonium chloride is liquid reagent, then described palmityl trimethyl ammonium chloride content need be greater than 70%.
8. the properties-correcting agent of the prevention calcium halogen fouling as described in as arbitrary in Claims 1 to 5, it is characterized in that, if described tributyl phosphate is as liquid reagent, then described tributyl phosphate content need be greater than 99%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510906322.7A CN105419761B (en) | 2015-12-09 | 2015-12-09 | A kind of modifying agent for preventing calcium halogen fouling |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510906322.7A CN105419761B (en) | 2015-12-09 | 2015-12-09 | A kind of modifying agent for preventing calcium halogen fouling |
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| CN105419761A true CN105419761A (en) | 2016-03-23 |
| CN105419761B CN105419761B (en) | 2018-06-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111378421A (en) * | 2018-12-28 | 2020-07-07 | 中国石油天然气股份有限公司 | Well killing fluid and preparation method thereof |
| WO2023205672A1 (en) * | 2022-04-19 | 2023-10-26 | Saudi Arabian Oil Company | Scale inhibitor fluid and method for inhibiting scale formation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102635344A (en) * | 2012-04-13 | 2012-08-15 | 中国石油天然气股份有限公司 | Composite blocking-removal method for improving flow conductivity of triple-low sandstone reservoir |
| CN103509540A (en) * | 2013-08-07 | 2014-01-15 | 西安石油大学 | Gradual injection oil layer deep part blocking remover and injection technology thereof |
| CN104302728A (en) * | 2012-05-18 | 2015-01-21 | 麦克德米德近海方案股份有限公司 | Composition for removing scale deposits |
| CN104755582A (en) * | 2013-03-14 | 2015-07-01 | Cesi化工有限公司 | Methods and compositions for stimulating the production of hydrocarbons from subterranean formation |
-
2015
- 2015-12-09 CN CN201510906322.7A patent/CN105419761B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635344A (en) * | 2012-04-13 | 2012-08-15 | 中国石油天然气股份有限公司 | Composite blocking-removal method for improving flow conductivity of triple-low sandstone reservoir |
| CN104302728A (en) * | 2012-05-18 | 2015-01-21 | 麦克德米德近海方案股份有限公司 | Composition for removing scale deposits |
| CN104755582A (en) * | 2013-03-14 | 2015-07-01 | Cesi化工有限公司 | Methods and compositions for stimulating the production of hydrocarbons from subterranean formation |
| CN103509540A (en) * | 2013-08-07 | 2014-01-15 | 西安石油大学 | Gradual injection oil layer deep part blocking remover and injection technology thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111378421A (en) * | 2018-12-28 | 2020-07-07 | 中国石油天然气股份有限公司 | Well killing fluid and preparation method thereof |
| WO2023205672A1 (en) * | 2022-04-19 | 2023-10-26 | Saudi Arabian Oil Company | Scale inhibitor fluid and method for inhibiting scale formation |
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| Publication number | Publication date |
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| CN105419761B (en) | 2018-06-01 |
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