CN107043618A - A kind of oil gas field organic composite de-plugging agent and preparation method thereof - Google Patents
A kind of oil gas field organic composite de-plugging agent and preparation method thereof Download PDFInfo
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- CN107043618A CN107043618A CN201610999194.XA CN201610999194A CN107043618A CN 107043618 A CN107043618 A CN 107043618A CN 201610999194 A CN201610999194 A CN 201610999194A CN 107043618 A CN107043618 A CN 107043618A
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- acid
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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
Abstract
The invention discloses a kind of oil gas field organic composite de-plugging agent and preparation method thereof, the organic composite de-plugging agent includes following raw material by weight：1 50 parts of ATMP, 3 40 parts of polymethacrylates, 1 40 parts of citric acid, 3 50 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid, 1 30 parts of polyoxyethylene carboxylic acid sodium, 1 40 parts of sodium n-alkylbenzenesulfonate, 1 25 parts of poly- maleic acid potassium, 1 22 parts of phosphoric acid ester sodium of focusing, 1 30 parts of AEO, 1 60 parts of toluene, 1 60 parts of hexamethylene, 2 45 parts of alkyl sulfo betaines, 2 45 parts of APEO, 2 45 parts of ammonium fluoride.It is well mixed after each raw material is weighed according to parts by weight, heating stirring is produced.Effectively closure high permeability formation of the invention, improves permeability, realizes that deep is effectively acidified；Release ground deep layer to pollute and be effectively improved the permeability of low-permeability layer, adjust intake profile, realize effective water filling.The present invention has a safety feature, and preparation process is simple, cheap.
Description
Technical field
The present invention relates to oil gas field auxiliary agent technical field, specifically a kind of oil gas field organic composite de-plugging agent and its preparation
Method.
Background technology
In oilfield development process, blocking is one with serious problems all the time.Main plugging reason：One is due to side water
Or the hammer of bottom water enters, the incompatibility with oil-reservoir water produces fouling and clogging oil reservoir；Two be due to the aqueous rising of production process, water
The effect of washing causes reservoir rock clay mineral is loose to come off with flow velocity effect, particle migration occurs and blocks oil reservoir；Three be aqueous increasing
Plus, there is emulsion plugging in the process migrated in profit；Four be crude oil in decline of the adjacent to oil well area due to temperature, degassing phenomenon
Generation high-solidification point composition and colloidal bitumen in crude oil can be caused to separate out, there is blocking of the mink cell focus near wellbore zone.At present
The various block releasing techniques developed, can effectively release the blocking of near wellbore zone, but to the blocking of water injection well deep oil reservoir its
Plugging removal effect is very limited, in the case that particularly greasy filth mixing is blocked, it is impossible to effectively penetrate into tamper, plugging removal effect
Significantly decline.
The content of the invention
It is an object of the invention to provide it is a kind of improve permeability, have a safety feature, environmental protection oil gas field organic composite
De-plugging agent and preparation method thereof, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides following technical scheme：
A kind of oil gas field organic composite de-plugging agent, by weight, including following raw material：1-50 parts of ATMP,
3-40 parts of polymethacrylates, 1-40 parts of citric acid, 3-50 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid, 1-30 parts of polyoxyethylene carboxylic acid sodium,
1-40 parts of sodium n-alkylbenzenesulfonate, 1-25 parts of poly- maleic acid potassium, 1-22 parts of phosphoric acid ester sodium of focusing, fatty alcohol polyoxy second
1-30 parts of alkene ether, 1-60 parts of toluene, 1-60 parts of hexamethylene, 2-45 parts of alkyl sulfo betaines, 2-45 parts of APEO, fluorination
2-45 parts of ammonium.
It is used as further scheme of the invention：Oil gas field organic composite de-plugging agent, by weight, including it is following
Raw material：1-45 parts of ATMP, 4-35 parts of polymethacrylates, 1-35 parts of citric acid, 1-hydroxy ethylidene-1,1-diphosphonic acid 4-
45 parts, 1-25 parts of polyoxyethylene carboxylic acid sodium, 2-35 parts of sodium n-alkylbenzenesulfonate, 2-22 parts of poly- maleic acid potassium, focus on phosphorus
2-20 parts of sodium salt, 2-25 parts of AEO, 1-55 parts of toluene, 1-55 parts of hexamethylene, alkyl sulfo betaines
2-40 parts, 2-40 parts of APEO, 3-40 parts of ammonium fluoride.
It is used as further scheme of the invention：Oil gas field organic composite de-plugging agent, by weight, including it is following
Raw material：1-20 parts of ATMP, 5-18 parts of polymethacrylates, 1-30 parts of citric acid, 1-hydroxy ethylidene-1,1-diphosphonic acid 5-
40 parts, 2-22 parts of polyoxyethylene carboxylic acid sodium, 5-33 parts of sodium n-alkylbenzenesulfonate, 3-20 parts of poly- maleic acid potassium, focus on phosphorus
3-18 parts of sodium salt, 3-22 parts of AEO, 1-50 parts of toluene, 1-50 parts of hexamethylene, alkyl sulfo betaines
3-35 parts, 3-35 parts of APEO, 5-35 parts of ammonium fluoride.
A kind of oil gas field preparation method of organic composite de-plugging agent, comprises the following steps：By ATMP, gather
Methacrylate, citric acid, 1-hydroxy ethylidene-1,1-diphosphonic acid, polyoxyethylene carboxylic acid sodium, sodium n-alkylbenzenesulfonate, poly- maleic two
Sour potassium, focusing phosphoric acid ester sodium, AEO, toluene, hexamethylene, alkyl sulfo betaines, APEO, fluorine
Change after ammonium is weighed according to parts by weight and be well mixed, heating stirring handles 1-8h at a temperature of 50-90 DEG C, produces organic composite solution
Blocking agent.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention can effectively block high permeability formation, improve permeability, realize that deep is effectively acidified；Ground deep layer is released to pollute and effectively change
The permeability of kind low-permeability layer, adjusts intake profile, realizes effective water filling；Release deep oil layer blocking problem and de-plugging success rate
Low the problem of.The present invention has a safety feature, simple with preparation process, cheap, the advantages of environmentally friendly.
Embodiment
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 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 the premise of creative work is not made, all
Belong to the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, a kind of oil gas field organic composite de-plugging agent, by weight, including following raw material：Amino three
1 part of methylenephosphonic acid, 3 parts of polymethacrylates, 1 part of citric acid, 3 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid, 1 part of polyoxyethylene carboxylic acid sodium,
1 part of sodium n-alkylbenzenesulfonate, 1 part of poly- maleic acid potassium, focus on 1 part of phosphoric acid ester sodium, 1 part of AEO,
1 part of toluene, 1 part of hexamethylene, 2 parts of alkyl sulfo betaines, 2 parts of APEO, 2 parts of ammonium fluoride.
By ATMP, polymethacrylates, citric acid, 1-hydroxy ethylidene-1,1-diphosphonic acid, polyoxyethylene carboxylic acid sodium,
Sodium n-alkylbenzenesulfonate, poly- maleic acid potassium, focus on phosphoric acid ester sodium, AEO, toluene, hexamethylene,
Alkyl sulfo betaines, APEO, ammonium fluoride are well mixed after being weighed according to parts by weight, are heated and are stirred at a temperature of 50 DEG C
Processing 1h is mixed, organic composite de-plugging agent is produced.
Implementation result：Scene is according to the de-plugging of 2 mouthfuls of water injection wells of above-mentioned formula and process implementing, de-plugging agent corrosion rate
3.2g/h·m 2, after de-plugging, in the case where completing injection allocation requirement, average individual well water injection pressure declines 30%.
Embodiment 2
In the embodiment of the present invention, a kind of oil gas field organic composite de-plugging agent, by weight, including following raw material：Amino three
50 parts of methylenephosphonic acid, 40 parts of polymethacrylates, 40 parts of citric acid, 50 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid, polyoxyethylene carboxylic acid sodium
30 parts, 40 parts of sodium n-alkylbenzenesulfonate, 25 parts of poly- maleic acid potassium, focus on 22 parts of phosphoric acid ester sodium, fatty alcohol polyoxy second
30 parts of alkene ether, 60 parts of toluene, 60 parts of hexamethylene, 45 parts of alkyl sulfo betaines, 45 parts of APEO, 45 parts of ammonium fluoride.
By ATMP, polymethacrylates, citric acid, 1-hydroxy ethylidene-1,1-diphosphonic acid, polyoxyethylene carboxylic acid sodium,
Sodium n-alkylbenzenesulfonate, poly- maleic acid potassium, focus on phosphoric acid ester sodium, AEO, toluene, hexamethylene,
Alkyl sulfo betaines, APEO, ammonium fluoride are well mixed after being weighed according to parts by weight, are heated and are stirred at a temperature of 90 DEG C
Processing 8h is mixed, organic composite de-plugging agent is produced.
Implementation result：Scene is according to the de-plugging of 2 mouthfuls of water injection wells of above-mentioned formula and process implementing, de-plugging agent corrosion rate
3.3g/h·m 2, after de-plugging, in the case where completing injection allocation requirement, average individual well water injection pressure declines 31%.
Embodiment 3
In the embodiment of the present invention, a kind of oil gas field organic composite de-plugging agent, by weight, including following raw material：Amino three
1 part of methylenephosphonic acid, 4 parts of polymethacrylates, 1 part of citric acid, 4 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid, 1 part of polyoxyethylene carboxylic acid sodium,
2 parts of sodium n-alkylbenzenesulfonate, 2 parts of poly- maleic acid potassium, focus on 2 parts of phosphoric acid ester sodium, 2 parts of AEO,
1 part of toluene, 1 part of hexamethylene, 2 parts of alkyl sulfo betaines, 2 parts of APEO, 3 parts of ammonium fluoride.
By ATMP, polymethacrylates, citric acid, 1-hydroxy ethylidene-1,1-diphosphonic acid, polyoxyethylene carboxylic acid sodium,
Sodium n-alkylbenzenesulfonate, poly- maleic acid potassium, focus on phosphoric acid ester sodium, AEO, toluene, hexamethylene,
Alkyl sulfo betaines, APEO, ammonium fluoride are well mixed after being weighed according to parts by weight, are heated and are stirred at a temperature of 60 DEG C
Processing 2h is mixed, organic composite de-plugging agent is produced.
Implementation result：Scene is according to the de-plugging of 2 mouthfuls of water injection wells of above-mentioned formula and process implementing, de-plugging agent corrosion rate
3.5g/h·m 2, after de-plugging, in the case where completing injection allocation requirement, average individual well water injection pressure declines 33%.
Embodiment 4
In the embodiment of the present invention, a kind of oil gas field organic composite de-plugging agent, by weight, including following raw material：Amino three
45 parts of methylenephosphonic acid, 35 parts of polymethacrylates, 35 parts of citric acid, 45 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid, polyoxyethylene carboxylic acid sodium
25 parts, 35 parts of sodium n-alkylbenzenesulfonate, 22 parts of poly- maleic acid potassium, focus on 20 parts of phosphoric acid ester sodium, fatty alcohol polyoxy second
25 parts of alkene ether, 55 parts of toluene, 55 parts of hexamethylene, 40 parts of alkyl sulfo betaines, 40 parts of APEO, 40 parts of ammonium fluoride.
By ATMP, polymethacrylates, citric acid, 1-hydroxy ethylidene-1,1-diphosphonic acid, polyoxyethylene carboxylic acid sodium,
Sodium n-alkylbenzenesulfonate, poly- maleic acid potassium, focus on phosphoric acid ester sodium, AEO, toluene, hexamethylene,
Alkyl sulfo betaines, APEO, ammonium fluoride are well mixed after being weighed according to parts by weight, are heated and are stirred at a temperature of 80 DEG C
Processing 6h is mixed, organic composite de-plugging agent is produced.
Implementation result：Scene is according to the de-plugging of 2 mouthfuls of water injection wells of above-mentioned formula and process implementing, de-plugging agent corrosion rate
3.6g/h·m 2, after de-plugging, in the case where completing injection allocation requirement, average individual well water injection pressure declines 36%.
Embodiment 5
In the embodiment of the present invention, a kind of oil gas field organic composite de-plugging agent, by weight, including following raw material：Amino three
1 part of methylenephosphonic acid, 8 parts of polymethacrylates, 1 part of citric acid, 5 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid, 2 parts of polyoxyethylene carboxylic acid sodium,
5 parts of sodium n-alkylbenzenesulfonate, 3 parts of poly- maleic acid potassium, focus on 3 parts of phosphoric acid ester sodium, 3 parts of AEO,
1 part of toluene, 1 part of hexamethylene, 3 parts of alkyl sulfo betaines, 5 parts of APEO, 5 parts of ammonium fluoride.
By ATMP, polymethacrylates, citric acid, 1-hydroxy ethylidene-1,1-diphosphonic acid, polyoxyethylene carboxylic acid sodium,
Sodium n-alkylbenzenesulfonate, poly- maleic acid potassium, focus on phosphoric acid ester sodium, AEO, toluene, hexamethylene,
Alkyl sulfo betaines, APEO, ammonium fluoride are well mixed after being weighed according to parts by weight, are heated and are stirred at a temperature of 65 DEG C
Processing 4h is mixed, organic composite de-plugging agent is produced.
Implementation result：Scene is according to the de-plugging of 2 mouthfuls of water injection wells of above-mentioned formula and process implementing, de-plugging agent corrosion rate
3.8g/h·m 2, after de-plugging, in the case where completing injection allocation requirement, average individual well water injection pressure declines 36.2%.
Embodiment 6
In the embodiment of the present invention, a kind of oil gas field organic composite de-plugging agent, by weight, including following raw material：Amino three
20 parts of methylenephosphonic acid, 18 parts of polymethacrylates, 30 parts of citric acid, 40 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid, polyoxyethylene carboxylic acid sodium
22 parts, 33 parts of sodium n-alkylbenzenesulfonate, 20 parts of poly- maleic acid potassium, focus on 18 parts of phosphoric acid ester sodium, fatty alcohol polyoxy second
22 parts of alkene ether, 50 parts of toluene, 50 parts of hexamethylene, 35 parts of alkyl sulfo betaines, 35 parts of APEO, 35 parts of ammonium fluoride.
By ATMP, polymethacrylates, citric acid, 1-hydroxy ethylidene-1,1-diphosphonic acid, polyoxyethylene carboxylic acid sodium,
Sodium n-alkylbenzenesulfonate, poly- maleic acid potassium, focus on phosphoric acid ester sodium, AEO, toluene, hexamethylene,
Alkyl sulfo betaines, APEO, ammonium fluoride are well mixed after being weighed according to parts by weight, are heated and are stirred at a temperature of 70 DEG C
Processing 5h is mixed, organic composite de-plugging agent is produced.
Implementation result：Scene is according to the de-plugging of 2 mouthfuls of water injection wells of above-mentioned formula and process implementing, de-plugging agent corrosion rate
3.9g/h·m 2, after de-plugging, in the case where completing injection allocation requirement, average individual well water injection pressure declines 36.5%.
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 without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (4)
1. a kind of oil gas field organic composite de-plugging agent, it is characterised in that by weight, including following raw material：Amino front three
Pitch 1-50 parts of phosphonic acids, 3-40 parts of polymethacrylates, 1-40 parts of citric acid, 3-50 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid, polyoxyethylene
1-30 parts of carboxylic acid sodium, 1-40 parts of sodium n-alkylbenzenesulfonate, 1-25 parts of poly- maleic acid potassium, focusing phosphoric acid ester sodium 1-22
Part, 1-30 parts of AEO, 1-60 parts of toluene, 1-60 parts of hexamethylene, 2-45 parts of alkyl sulfo betaines, polyoxy second
2-45 parts of alkene ether, 2-45 parts of ammonium fluoride.
2. oil gas field according to claim 1 organic composite de-plugging agent, it is characterised in that by weight, including with
Lower raw material：1-45 parts of ATMP, 4-35 parts of polymethacrylates, 1-35 parts of citric acid, 1-hydroxy ethylidene-1,1-diphosphonic acid
4-45 parts, 1-25 parts of polyoxyethylene carboxylic acid sodium, 2-35 parts of sodium n-alkylbenzenesulfonate, 2-22 parts of poly- maleic acid potassium, focus on
2-20 parts of phosphoric acid ester sodium, 2-25 parts of AEO, 1-55 parts of toluene, 1-55 parts of hexamethylene, alkyl sulfobetaines beet
2-40 parts of alkali, 2-40 parts of APEO, 3-40 parts of ammonium fluoride.
3. oil gas field according to claim 1 organic composite de-plugging agent, it is characterised in that by weight, including with
Lower raw material：1-20 parts of ATMP, 5-18 parts of polymethacrylates, 1-30 parts of citric acid, 1-hydroxy ethylidene-1,1-diphosphonic acid
5-40 parts, 2-22 parts of polyoxyethylene carboxylic acid sodium, 5-33 parts of sodium n-alkylbenzenesulfonate, 3-20 parts of poly- maleic acid potassium, focus on
3-18 parts of phosphoric acid ester sodium, 3-22 parts of AEO, 1-50 parts of toluene, 1-50 parts of hexamethylene, alkyl sulfobetaines beet
3-35 parts of alkali, 3-35 parts of APEO, 5-35 parts of ammonium fluoride.
4. a kind of preparation method of oil gas field organic composite de-plugging agent as described in claim 1-3 is any, it is characterised in that
Comprise the following steps：By ATMP, polymethacrylates, citric acid, 1-hydroxy ethylidene-1,1-diphosphonic acid, polyoxyethylene carboxylic
Sour sodium, sodium n-alkylbenzenesulfonate, poly- maleic acid potassium, focusing phosphoric acid ester sodium, AEO, toluene, ring
Hexane, alkyl sulfo betaines, APEO, ammonium fluoride are well mixed after being weighed according to parts by weight, in 50-90 DEG C of temperature
Lower heating stirring handles 1-8h, produces organic composite de-plugging agent.
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| CN105482801A (en) * | 2015-11-25 | 2016-04-13 | 中国海洋石油总公司 | Oil and water well polyacid blocking remover |
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2016
- 2016-11-14 CN CN201610999194.XA patent/CN107043618A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925128A (en) * | 2012-11-05 | 2013-02-13 | 中国海洋石油总公司 | Compound chemical blocking removing agent of oil field polymer injection well |
| CN103497756A (en) * | 2013-09-24 | 2014-01-08 | 北京恩瑞达科技有限公司 | Acidification blocking remover for removing oil field pollution blocking |
| CN103834377A (en) * | 2014-03-11 | 2014-06-04 | 范金彪 | Scale prevention blocking remover for ternary composite water dependent well |
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Application publication date: 20170815 |