CN109181666A - One kind having the novel paraffin remover of recuperability and its preparation and recovery method - Google Patents
One kind having the novel paraffin remover of recuperability and its preparation and recovery method Download PDFInfo
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- CN109181666A CN109181666A CN201811070653.1A CN201811070653A CN109181666A CN 109181666 A CN109181666 A CN 109181666A CN 201811070653 A CN201811070653 A CN 201811070653A CN 109181666 A CN109181666 A CN 109181666A
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- recuperability
- paraffin remover
- novel
- novel paraffin
- remover
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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
- C09K8/524—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning organic depositions, e.g. paraffins or asphaltenes
Abstract
The present invention relates to a kind of chemical products used in oil field, it provides a kind of with the novel paraffin remover of recuperability and its preparation and recovery method, a kind of with the novel paraffin remover of recuperability its ingredient includes host agent dimethyl ether that mass percent is 10~90%, 6~10% mutual solvent, 1~4% surfactant, remaining is water.And for a kind of there is the novel paraffin remover of recuperability to provide a kind of prepare and its recovery method.One kind provided by the invention has the advantages that the novel paraffin remover of recuperability has: the host agent and water are dissolved each other when the agent content that dissolves each other is 6% or more with arbitrary proportion mixture, can be compounded as needed；Characteristic with recyclable recycling；Molten wax is had excellent performance；It is environmentally protective nontoxic without benzene series organic solvent；With certain wax control result while wax removal；Oil well suitable for different salinities, temperature, oil sample density；Product is in neutrality, does not corrode oil pipe.
Description
Technical field
The present invention relates to a kind of chemical products used in oil field, provide it is a kind of have the novel paraffin remover of recuperability and its
Preparation and recovery method.
Background technique
In oil recovery process there is Three Difficult Issues: shake out, fouling, wax deposition, they bring to crude oil production and construction
Many troubles.In recovery process, waxy crude oil rises along oil pipe, with the environment item such as temperature, pressure, flow velocity and moisture content
The change of part, paraffin molecule in wax crude oil are concentrated since dissolution equilibrium can crystallize precipitations by destroying and are deposited on tube inner wall
On.Paraffin must cause oil flow channel to reduce in the deposition of tube inner wall, and flow resistance increases, and cause oil well productivity to reduce, even
It stops production.In order to solve this problem, a variety of countermeasures are developed, wherein Chemical Paraffin Removal & Control Techniques are with wide adaptability, effect
The features such as rate is high, operating procedure is simple is well received and is widely adopted.
There are many types for paraffin removing with chemical method agent, are generally divided into oil-base paraffin remover, water base paraffin remover and emulsion-type paraffin remover, general
Logical paraffin remover has one common disadvantage is that not can be recycled, so that use cost rises.To this, the present invention provides one
Kind has the novel paraffin remover of recuperability and its preparation and recovery method.
Summary of the invention
In order to reduce industrial cost and protection environment, the present invention, which develops one kind, has the novel paraffin remover of recuperability,
Under down-hole high pressure operating condition, the function of common paraffin remover at present may be implemented, and there is one kind the novel paraffin remover of recuperability to exist
It can be vaporized under low pressure convenient for recycling, therefore there is green safe recyclable good characteristic, and the one kind has recuperability new
Type paraffin remover can reach preferable Paraffin Removal effect.
To achieve the goals above, a kind of technical solution with the novel paraffin remover of recuperability is as follows:
One kind having the novel paraffin remover of recuperability, by forming following weight percentage components:
It is dimethyl ether that one of which, which has the host agent of the novel paraffin remover of recuperability, and effect is dissolution paraffin, makes to condense
It falls off in the wax dirt dissolution of tube inner wall or from tube inner wall, dimethyl ether has unique physicochemical property, satisfies at normal temperature
It is 0.5Mpa with vapour pressure, exists under the hyperbaric environment in oil field with liquid, it is very excellent to find that it has by visualized experiment
Good molten wax performance.Dimethyl ether and separated from petroleum can be made to recycle by decompression after dimethyl ether and petroleum are miscible, it is reusable.
It is water-wetted surface that the effect of surfactant, which is by oil-wetted surface wettability reversal, makes to condense in the stone on tube inner wall
Wax becomes loosely, and in order to which dimethyl ether enters wax stone gap to accelerate the dissolution to wax dirt, also, surfactant makes tubing wall
Wetability switchs to hydrophily, to inhibit the further generation of wax dirt, accelerates wax dirt from oil pipe while playing certain wax control
Inner wall falls off.Mutual solvent keeps dimethyl ether sufficiently miscible with water, forms solvent stability；Also have while water is as solvent certain
Fire retardation；Ratio by adjusting water and dimethyl ether can change a kind of density with the novel paraffin remover of recuperability, with
Have the novel paraffin remover of recuperability sufficiently miscible with petroleum in shaft bottom convenient for one kind.
In order to further increase molten wax effect, each component can carry out following preferred in wax removal composition of the invention:
There is one kind the novel paraffin remover of recuperability can be used oil-soluble or water soluble surfactant active as in its formula
Surfactant, optional reagent are SP80, isoamyl alcohol, neopelex, hexadecyltrimethylammonium chloride etc..
There is one kind its mutual solvent of the novel paraffin remover of recuperability to be chosen as methanol, ethyl alcohol.
The present invention also provides a kind of according to a kind of above-mentioned preparation method with the novel paraffin remover of recuperability.
Illustrate that a kind of preparation method with the novel paraffin remover of recuperability is in conjunction with attached drawing 1: first anti-under normal pressure
The miscible fluid for answering the water that the fixed amount prepared in advance is added in kettle (10) and surfactant, mutual solvent, passes through needle valve later
(4) it is forced into reaction kettle (10) higher than 0.5Mpa, then is added from holding vessel (5) by needle valve (11) in reaction kettle (10)
Enter the diformazan etherifying reagent of fixed amount, after mixing evenly getting the product.
The present invention also provides a kind of according to a kind of above-mentioned recovery method with the novel paraffin remover of recuperability.
Illustrate a kind of laboratory way of recycling with the novel paraffin remover of recuperability in conjunction with attached drawing 1: anti-in molten wax
After answering, nitrogen is passed through in reaction kettle (10) by needle valve (4), has recuperability novel clear one kind after reaction
Cerate is entered recycling can (9) by needle valve (12) displacement, then makes intermediate receptacle (7) interior pressure reduction by needle valve (2) pressure release
And down to 1Mpa, opening needle valve (8) makes to form pressure difference between recycling can (9) and intermediate receptacle (7), one in recycling can (9)
There is the novel paraffin remover phase of recuperability to be changed into gaseous state by liquid and enter intermediate receptacle (7) for kind, be added by needle valve (2)
Pressure makes intermediate receptacle (7) interior pressure increase and be higher than 0.5Mpa, a kind of in intermediate receptacle (7) to have the novel wax removal of recuperability
The phase of agent can be changed into liquid by gaseous state state at this moment, the one kind for becoming liquid can be made to have by needle valve (6) recyclable
Property novel paraffin remover enter holding vessel (5) preservation, after the recovery a kind of have the novel paraffin remover of recuperability logical by holding vessel (5)
It crosses needle valve (11) and reaction kettle (10) and Reusability is added.
The invention has the following advantages:
(1) it is dimethyl ether, unique physics and chemistry that one kind provided by the invention, which has the novel paraffin remover raw material of recuperability,
Matter makes it have recyclable excellent performance, meets country for environmentally protective sustainable requirement.
(2) it is dimethyl ether that one kind provided by the invention, which has the novel paraffin remover raw material of recuperability, and wax removal efficiency is more than
Most of benzene series solvents and solvent naphtha, Paraffin Removal significant effect.
(3) it is dimethyl ether that one kind provided by the invention, which has the novel paraffin remover raw material of recuperability, does not have toxicity, right
Human-body safety is harmless, is the excellent substitution for having virose benzene series solvent in traditional paraffin remover.
(4) present invention, which provides one kind for having, has the novel paraffin remover of recuperability, dual with wax removal and wax control
Effect, product is neutrality, to oil pipe and stratum fanout free region.
(5) provided by the invention that there is the novel paraffin remover of recuperability with one kind, by the ratio for adjusting water and dimethyl ether
The density that example can change paraffin remover can meet different oil wells to wax removal in order to which paraffin remover is sufficiently miscible with petroleum in shaft bottom
The demand of agent.
Detailed description of the invention
Fig. 1 is preparation and the reclaimer schematic diagram of the invention patent reagent.
In figure: 1,2,3,4,6,8,11,12 being wherein needle valve, 5 be holding vessel, 7 be intermediate receptacle, 9 be recycling can, 10
For reaction kettle.
Specific embodiment
It is 10~90% that one kind of the specific embodiment of the invention, which includes mass percent with the novel paraffin remover of recuperability,
Dimethyl ether, mass percent be 1~4% surfactant, mass percent be 6~10% mutual solvent, remaining is water.
Illustrate a kind of preparation method with the novel paraffin remover of recuperability in conjunction with attached drawing 1: first being reacted under normal pressure
The water of the fixed amount prepared in advance and the miscible fluid of surfactant, mutual solvent are added in kettle (10), passes through needle valve (4) later
It is forced into reaction kettle (10) higher than 0.5Mpa, then is added from holding vessel (5) by needle valve (11) into reaction kettle (10)
The diformazan etherifying reagent of fixed amount, after mixing evenly getting the product.
Illustrate a kind of laboratory way of recycling with the novel paraffin remover of recuperability in conjunction with attached drawing 1: anti-in molten wax
After answering, nitrogen is passed through in reaction kettle (10) by needle valve (4), has recuperability novel clear one kind after reaction
Cerate is entered recycling can (9) by needle valve (12) displacement, then makes intermediate receptacle (7) interior pressure reduction by needle valve (2) pressure release
And down to 1Mpa, opening needle valve (8) makes to form pressure difference between recycling can (9) and intermediate receptacle (7), one in recycling can (9)
There is the novel paraffin remover phase of recuperability to be changed into gaseous state by liquid and enter intermediate receptacle (7) for kind, be added by needle valve (2)
Pressure makes intermediate receptacle (7) interior pressure increase and be higher than 0.5Mpa, a kind of in intermediate receptacle (7) to have the novel wax removal of recuperability
The phase of agent can be changed into liquid by gaseous state state at this moment, the one kind for becoming liquid can be made to have by needle valve (6) recyclable
Property novel paraffin remover enter holding vessel (5) preservation, after the recovery a kind of have the novel paraffin remover of recuperability logical by holding vessel (5)
It crosses needle valve (11) and reaction kettle (10) and Reusability is added.
Illustrate formula of the invention below by concrete example:
Example 1:
Host agent is dimethyl ether and water, and surfactant is neopelex and SP80, and mutual solvent is ethylene glycol list
Butyl ether matches following (by mass percentage):
Preparation method: 300g water is added in reaction kettle (10), starts stirring, is stirred for down sequentially adding 10g dodecane
Base benzene sulfonic acid sodium salt, 180g ethyl alcohol, 10g SP80 are forced into reaction kettle (10) higher than 0.5Mpa by needle valve (4) later,
Pass through holding vessel (5) again and cross needle valve (11) addition 500g dimethyl ether into reaction kettle (10), continues to stir evenly to get production is arrived
Product.
After tested, at 45 DEG C, the product is 0.0487g/min to the speed of paraffin dissolution of No. 56 paraffin, passes through reclaimer operation institute
There is obtained one kind the novel paraffin remover rate of recovery of recuperability to reach 83%.
Example 2:
Host agent is dimethyl ether and water, and surfactant is isoamyl alcohol and hexadecyltrimethylammonium chloride, and mutual solvent is second
Alcohol matches following (by mass percentage):
Preparation method: 300g water is added in reaction kettle (10), starts stirring, is stirred for down sequentially adding cetyl three
Ammonio methacrylate 10g, ethyl alcohol 80g, 10g isoamyl alcohol are forced into reaction kettle (10) by needle valve (4) are higher than later
0.5Mpa, then cross needle valve (11) by holding vessel (5) and dimethyl ether 600g is added into reaction kettle (10), continue to stir evenly,
Getting the product.
After tested, at 45 DEG C, the product is 0.0437g/min to the speed of paraffin dissolution of No. 56 paraffin, passes through reclaimer operation institute
There is obtained one kind the novel paraffin remover rate of recovery of recuperability to reach 88%.
Example 3:
Host agent is dimethyl ether and water, and surfactant is hexadecyltrimethylammonium chloride and SP80, and mutual solvent is second two
Alcohol monobutyl ether matches following (by mass percentage):
Preparation method: 220g water is added in reaction kettle (10), starts stirring, is stirred for down sequentially adding cetyl three
Ammonio methacrylate 10g, ethyl alcohol 60g, 10g SP80 are forced into reaction kettle (10) by needle valve (4) are higher than later
0.5Mpa, then cross needle valve (11) by holding vessel (5) and dimethyl ether 700g is added into reaction kettle (10), continue to stir evenly,
Getting the product.
After tested, at 45 DEG C, the product is 0.034g/min to the speed of paraffin dissolution of No. 56 paraffin, passes through reclaimer operation institute
There is obtained one kind the novel paraffin remover rate of recovery of recuperability to reach 90%.(the above revolving speed is 40r/min)
The present invention is not limited to the above-described embodiments, anyone can obtain other various shapes under the inspiration of the present invention
The product of formula, however, make any variation in its component or proportion, it is all that there is same as the present application or similar technical side
Case is within the scope of the present invention.
Claims (6)
1. one kind has the novel paraffin remover of recuperability, it is characterised in that: by mass percentage include following component:
2. according to claim 1 a kind of with the novel paraffin remover of recuperability, it is characterised in that: the matter of the dimethyl ether
Amount percentage can be adjusted according to the needs, in the range of 10~90%.
3. according to claim 1 a kind of with the novel paraffin remover of recuperability, it is characterised in that: the quality hundred of the water
Ratio is divided to can be adjusted according to the needs, in the range of 10~90%.
4. according to claim 1 a kind of with the novel paraffin remover of recuperability, it is characterised in that: the mutual solvent
Mass percent is not less than 6%.
5. according to claim 1 a kind of with the novel paraffin remover of recuperability, preparation method are as follows: first anti-under normal pressure
Answer the miscible fluid of the water that the fixed amount prepared in advance is added in kettle (10) and surfactant, mutual solvent, backward reaction kettle
(10) it is forced into higher than 0.5Mpa, then the diformazan etherifying reagent of fixed amount is added into reaction kettle (10), after mixing evenly to obtain the final product
To product.
6. according to claim 1 a kind of with the novel paraffin remover of recuperability, recovery method are as follows: react and tie in molten wax
Shu Hou there is the novel paraffin remover of recuperability to carry out decompression operation one kind after reaction, when pressure 1Mpa and 1Mpa with
When lower, there is one kind the novel paraffin remover phase of recuperability to switch to gaseous state by liquid, and collection phase has for gaseous one kind can
The novel paraffin remover of recyclability simultaneously carries out pressurized operation to it, and when pressure is higher than 0.5Mpa, one kind has recuperability novel clear
Cerate phase is changed into liquid by gaseous state, completes a kind of recycling with the novel paraffin remover of recuperability at this time, after the recovery
One kind having the novel paraffin remover of recuperability, that is, reusable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811070653.1A CN109181666B (en) | 2018-09-13 | 2018-09-13 | Recyclable novel paraffin remover and preparation and recovery methods thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811070653.1A CN109181666B (en) | 2018-09-13 | 2018-09-13 | Recyclable novel paraffin remover and preparation and recovery methods thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109181666A true CN109181666A (en) | 2019-01-11 |
| CN109181666B CN109181666B (en) | 2021-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811070653.1A Active CN109181666B (en) | 2018-09-13 | 2018-09-13 | Recyclable novel paraffin remover and preparation and recovery methods thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110643325A (en) * | 2019-10-16 | 2020-01-03 | 西南石油大学 | New application of dimethyl ether, recyclable heavy oil viscosity reducer prepared based on dimethyl ether and preparation and recovery methods of recyclable heavy oil viscosity reducer |
| CN112943167A (en) * | 2021-04-16 | 2021-06-11 | 中海石油(中国)有限公司湛江分公司 | Flushing fluid capable of quickly removing dead oil on pipe wall and flushing method thereof |
| CN114989797A (en) * | 2022-07-11 | 2022-09-02 | 西安石油大学 | Composite paraffin and scale removal agent for oil well and immobile pipe column blockage removal process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101265800A (en) * | 2007-03-13 | 2008-09-17 | 钜力集团有限公司 | Oil layer wax-condensing type oil reservoir mining method |
| US20130228329A1 (en) * | 2011-10-04 | 2013-09-05 | Biospan Technologies, Inc. | Oil Thinning Compositions And Retrieval Methods |
| CN105238377A (en) * | 2015-09-23 | 2016-01-13 | 山东聚鑫化工有限公司 | Water-based wax cleaning agent |
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2018
- 2018-09-13 CN CN201811070653.1A patent/CN109181666B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101265800A (en) * | 2007-03-13 | 2008-09-17 | 钜力集团有限公司 | Oil layer wax-condensing type oil reservoir mining method |
| US20130228329A1 (en) * | 2011-10-04 | 2013-09-05 | Biospan Technologies, Inc. | Oil Thinning Compositions And Retrieval Methods |
| CN105238377A (en) * | 2015-09-23 | 2016-01-13 | 山东聚鑫化工有限公司 | Water-based wax cleaning agent |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110643325A (en) * | 2019-10-16 | 2020-01-03 | 西南石油大学 | New application of dimethyl ether, recyclable heavy oil viscosity reducer prepared based on dimethyl ether and preparation and recovery methods of recyclable heavy oil viscosity reducer |
| CN112943167A (en) * | 2021-04-16 | 2021-06-11 | 中海石油(中国)有限公司湛江分公司 | Flushing fluid capable of quickly removing dead oil on pipe wall and flushing method thereof |
| CN114989797A (en) * | 2022-07-11 | 2022-09-02 | 西安石油大学 | Composite paraffin and scale removal agent for oil well and immobile pipe column blockage removal process thereof |
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| CN109181666B (en) | 2021-01-12 |
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