CN116904180A - Iron ion stabilizer for oilfield fracturing - Google Patents
Iron ion stabilizer for oilfield fracturing Download PDFInfo
- Publication number
- CN116904180A CN116904180A CN202310877730.9A CN202310877730A CN116904180A CN 116904180 A CN116904180 A CN 116904180A CN 202310877730 A CN202310877730 A CN 202310877730A CN 116904180 A CN116904180 A CN 116904180A
- Authority
- CN
- China
- Prior art keywords
- iron ion
- ion stabilizer
- parts
- concentrated hydrochloric
- hydrochloric acid
- 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.)
- Pending
Links
- 239000003381 stabilizer Substances 0.000 title claims abstract description 43
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 42
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 42
- -1 iron ion Chemical class 0.000 claims abstract description 41
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 32
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229960004543 anhydrous citric acid Drugs 0.000 claims abstract description 16
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000008367 deionised water Substances 0.000 claims abstract description 10
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 10
- 239000000839 emulsion Substances 0.000 claims abstract description 10
- 229940044631 ferric chloride hexahydrate Drugs 0.000 claims abstract description 10
- NQXWGWZJXJUMQB-UHFFFAOYSA-K iron trichloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].Cl[Fe+]Cl NQXWGWZJXJUMQB-UHFFFAOYSA-K 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 5
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 3
- 229910001447 ferric ion Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229960004887 ferric hydroxide Drugs 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000012086 standard solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/72—Eroding chemicals, e.g. acids
- C09K8/74—Eroding chemicals, e.g. acids combined with additives added for specific purposes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Cosmetics (AREA)
Abstract
The invention is suitable for the technical field of iron ion stabilizers, and provides an iron ion stabilizer for oilfield fracturing, which comprises the following components in parts by weight: 5-10 parts of ferric chloride hexahydrate, 6-9 parts of concentrated hydrochloric acid, 1-3 parts of sodium carbonate emulsion, 2-3 parts of anhydrous citric acid and 1000 parts of deionized water. Preferably, the content ratio of the concentrated hydrochloric acid to the anhydrous citric acid is 3:1. Preferably, fe in the iron ion stabilizer 3+ The content of (C) is 0.1-1mg/mL. Preferably, the mass fraction of the raw material sodium carbonate solution is 5-10%. According to the iron ion stabilizer for oilfield fracturing, the ferric chloride hexahydrate, the concentrated hydrochloric acid, the sodium carbonate emulsion, the anhydrous citric acid and the deionized water are mixed according to the proportion, so that the prepared iron ion stabilizer standard liquid has high concentration, and when the iron ion stabilizer is used, the pH value does not need to be added and repeatedly adjusted for multiple times, so that the operation and the use are greatly facilitated, and the accuracy is ensured.
Description
Technical Field
The invention relates to the technical field of iron ion stabilizers, in particular to an iron ion stabilizer for oilfield fracturing.
Background
Oilfield fracturing is an important component of middle and low permeability oilfield exploration and development projects, and in the oilfield fracturing process, natural capacity is reduced after an oil well is perforated in the process due to the fact that middle and low permeability oilfield reservoir properties are limited to drilling, drilling fluid pollution and the like, production efficiency is poor, and normal production needs to be carried out through fracturing.
In the development process of oil fields, acidizing operation is widely applied to oil field sites as an effective measure for increasing the yield and the injection of oil-water wells, but no matter the acidizing of bedrock, the acidizing of fracturing or the unblocking and acidizing are carried out, the formed ferric hydroxide sediment can block stratum pores and oil-gas seepage channels, the acidizing effect and the oil-gas productivity are affected, and in order to prevent the secondary sediment of the ferric ions from damaging the stratum, the ferric ion stabilizer is generally added into acid liquid, so that the aim of stabilizing the ferric ions is fulfilled.
Most of the existing iron ion stabilizers have too small concentration of standard solution, need to be added for multiple times and repeatedly adjust the pH value, are boiled for multiple times, have complex operation, are inconvenient to use and have poor accuracy.
Disclosure of Invention
The invention aims to provide an iron ion stabilizer for oilfield fracturing, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: an iron ion stabilizer for oilfield fracturing comprises the following components:
ferric chloride hexahydrate, concentrated hydrochloric acid, sodium carbonate emulsion, anhydrous citric acid and deionized water.
Preferably, the components are as follows in parts by weight:
5-10 parts of ferric chloride hexahydrate, 6-9 parts of concentrated hydrochloric acid, 1-3 parts of sodium carbonate emulsion, 2-3 parts of anhydrous citric acid and 1000 parts of deionized water.
Preferably, the content ratio of the concentrated hydrochloric acid to the anhydrous citric acid is 3:1.
Preferably, fe in the iron ion stabilizer 3+ The content of (C) is 0.1-1mg/mL.
Preferably, the mass fraction of the raw material sodium carbonate solution is 5-10%.
Preferably, the mass fraction of the raw material concentrated hydrochloric acid is 37-38%.
Preferably, the pH value of the iron ion stabilizer is 4.5-5.5.
The invention has at least the following beneficial effects:
according to the iron ion stabilizer for oilfield fracturing, the ferric chloride hexahydrate, the concentrated hydrochloric acid, the sodium carbonate emulsion, the anhydrous citric acid and the deionized water are mixed according to the proportion, so that the prepared iron ion stabilizer standard liquid has high concentration, and when the iron ion stabilizer is used, the pH value does not need to be added and repeatedly adjusted for multiple times, so that the operation and the use are greatly facilitated, and the accuracy is ensured.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The iron ion stabilizer for oilfield fracturing comprises the following components in parts by weight:
5 parts of ferric chloride hexahydrate, 6 parts of concentrated hydrochloric acid, 1 part of sodium carbonate emulsion, 2 parts of anhydrous citric acid and 1000 parts of deionized water.
Wherein the content ratio of the concentrated hydrochloric acid to the anhydrous citric acid is 3:1.
Wherein, fe in the iron ion stabilizer 3+ The content of (C) was 0.1mg/mL.
Wherein the mass fraction of the raw material sodium carbonate solution is 10%.
Wherein the mass fraction of the raw material concentrated hydrochloric acid is 37%.
Wherein the pH value of the iron ion stabilizer is 4.5.
Example 2
The iron ion stabilizer for oilfield fracturing comprises the following components in parts by weight:
8 parts of ferric chloride hexahydrate, 7.2 parts of concentrated hydrochloric acid, 2 parts of sodium carbonate emulsion, 2.4 parts of anhydrous citric acid and 1000 parts of deionized water.
Wherein the content ratio of the concentrated hydrochloric acid to the anhydrous citric acid is 3:1.
Wherein, fe in the iron ion stabilizer 3+ The content of (C) was 0.6mg/mL.
Wherein the mass fraction of the raw material sodium carbonate solution is 8%.
Wherein the mass fraction of the raw material concentrated hydrochloric acid is 37.5%.
Wherein the pH value of the iron ion stabilizer is 5.
Example 3
The iron ion stabilizer for oilfield fracturing comprises the following components in parts by weight:
10 parts of ferric chloride hexahydrate, 9 parts of concentrated hydrochloric acid, 3 parts of sodium carbonate emulsion, 3 parts of anhydrous citric acid and 1000 parts of deionized water.
Wherein the content ratio of the concentrated hydrochloric acid to the anhydrous citric acid is 3:1.
Wherein, fe in the iron ion stabilizer 3+ The content of (C) was 1mg/mL.
Wherein the mass fraction of the raw material sodium carbonate solution is 5%.
Wherein the mass fraction of the raw material concentrated hydrochloric acid is 38%.
Wherein the pH value of the iron ion stabilizer is 5.5.
While the fundamental and principal features of the invention and advantages of the invention have been shown and described, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. An iron ion stabilizer for oilfield fracturing is characterized by comprising the following components:
ferric chloride hexahydrate, concentrated hydrochloric acid, sodium carbonate emulsion, anhydrous citric acid and deionized water.
2. The iron ion stabilizer for oilfield fracturing according to claim 1, wherein the iron ion stabilizer comprises the following components in parts by mass:
5-10 parts of ferric chloride hexahydrate, 6-9 parts of concentrated hydrochloric acid, 1-3 parts of sodium carbonate emulsion, 2-3 parts of anhydrous citric acid and 1000 parts of deionized water.
3. The iron ion stabilizer for oilfield fracturing of claim 2, wherein the iron ion stabilizer comprises the following components: the content ratio of the concentrated hydrochloric acid to the anhydrous citric acid is 3:1.
4. The iron ion stabilizer for oilfield fracturing of claim 1, wherein the iron ion stabilizer comprises the following components: fe in the iron ion stabilizer 3+ The content of (C) is 0.1-1mg/mL.
5. The iron ion stabilizer for oilfield fracturing of claim 1, wherein the iron ion stabilizer comprises the following components: the mass fraction of the raw material sodium carbonate solution is 5-10%.
6. The iron ion stabilizer for oilfield fracturing of claim 1, wherein the iron ion stabilizer comprises the following components: the mass fraction of the raw material concentrated hydrochloric acid is 37-38%.
7. The iron ion stabilizer for oilfield fracturing of claim 1, wherein the iron ion stabilizer comprises the following components: the pH value of the iron ion stabilizer is 4.5-5.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310877730.9A CN116904180A (en) | 2023-07-18 | 2023-07-18 | Iron ion stabilizer for oilfield fracturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310877730.9A CN116904180A (en) | 2023-07-18 | 2023-07-18 | Iron ion stabilizer for oilfield fracturing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116904180A true CN116904180A (en) | 2023-10-20 |
Family
ID=88364235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310877730.9A Pending CN116904180A (en) | 2023-07-18 | 2023-07-18 | Iron ion stabilizer for oilfield fracturing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116904180A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105295887A (en) * | 2015-09-16 | 2016-02-03 | 西南石油大学 | Excellent-performance iron ion stabilizer for acidification operation and preparation method of excellent-performance iron ion stabilizer |
| CN110055047A (en) * | 2019-04-26 | 2019-07-26 | 天津市玛特瑞科技有限公司 | A kind of quick-dissolving agent and preparation method accelerating the dissolution of magnesium alloy completion tool |
-
2023
- 2023-07-18 CN CN202310877730.9A patent/CN116904180A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105295887A (en) * | 2015-09-16 | 2016-02-03 | 西南石油大学 | Excellent-performance iron ion stabilizer for acidification operation and preparation method of excellent-performance iron ion stabilizer |
| CN110055047A (en) * | 2019-04-26 | 2019-07-26 | 天津市玛特瑞科技有限公司 | A kind of quick-dissolving agent and preparation method accelerating the dissolution of magnesium alloy completion tool |
Non-Patent Citations (2)
| Title |
|---|
| 张书荣;崔英儒;: "酸化用铁离子稳定剂的优选", 新疆石油科技, vol. 25, no. 01, 15 March 2015 (2015-03-15), pages 51 - 52 * |
| 韩洁;马喜平;罗;: "铁离子稳定剂的实验室评价", 化学工程与装备, no. 09, 15 September 2010 (2010-09-15), pages 118 - 20 * |
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