CN107674701A - It is a kind of to eliminate chemical treatments and its processing method that silicic acid class insoluble matter influences on ternary composite driving electric dehydrator treatment effect - Google Patents
It is a kind of to eliminate chemical treatments and its processing method that silicic acid class insoluble matter influences on ternary composite driving electric dehydrator treatment effect Download PDFInfo
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- CN107674701A CN107674701A CN201710753727.0A CN201710753727A CN107674701A CN 107674701 A CN107674701 A CN 107674701A CN 201710753727 A CN201710753727 A CN 201710753727A CN 107674701 A CN107674701 A CN 107674701A
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- electric dehydrator
- insoluble matter
- silicic acid
- agent
- treatment effect
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G33/00—Dewatering or demulsification of hydrocarbon oils
- C10G33/04—Dewatering or demulsification of hydrocarbon oils with chemical means
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1033—Oil well production fluids
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
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Abstract
Chemical treatments and its processing method that silicic acid class insoluble matter influences on ternary composite driving electric dehydrator treatment effect are eliminated the present invention relates to a kind of.Mainly solve the problems, such as that the silicic acid class insoluble matter that existing ternary composite driving electric dehydrator largely separates out adds crude oil dehydration difficulty.It is characterized in that：Inorganic agent each component includes alkaline agent, complexing agent.Its processing method, comprises the following steps：（1）Alkaline agent, complexing agent are added into electric dehydrator feed liquor；（2）The chemical feeding points of alkaline agent and complexing agent are set at electric dehydrator input duct；At the import of dehydrothermal stove or electric dehydrator input duct.The chemical treatments and its method that the elimination silicic acid class insoluble matter influences on ternary composite driving electric dehydrator treatment effect, it can eliminate or reduce in electric dehydrator by the profit transition zone of a large amount of solid particles stabilization, improve electric dehydrator operation conditions, the final compliance rate for improving crude oil dehydration.
Description
Technical field：
The present invention relates to oil extraction in oil field technical field, more particularly to a kind of silicic acid class insoluble matter that eliminates is to ternary composite driving electricity
The chemical treatments and its processing method that dehydrator treatment effect influences.
Background technology：
Displacement of reservoir oil agent content boost phase, Produced Liquid in the alkali, surfactant and polymer ternary combination flooding produced liquid of oil field
Aqueous phase silicone content also significantly raises therewith, and the silicic acid class insoluble matter of precipitation is with forming profit transition after Produced Liquid mixing and emulsifying
Layer, increases Produced Liquid water-oil separating difficulty；The useful space of system sedimentation facilities is have compressed, enhances the electric conductivity of medium,
Cause electric dehydrator electric field frequent fluctuation or even the electric field that collapses, crude oil dehydration difficulty substantially increase.
The content of the invention：
The invention reside in overcome the silicic acid class that existing ternary composite driving electric dehydrator largely separates out present in background technology
Insoluble matter adds the problem of crude oil dehydration difficulty, and provides a kind of silicic acid class insoluble matter that eliminates to ternary composite driving electric dehydrator
The chemical treatments that treatment effect influences.What the elimination silicic acid class insoluble matter influenceed on ternary composite driving electric dehydrator treatment effect
Chemical treatments, it can eliminate or reduce in electric dehydrator by the profit transition zone that a large amount of solid particles are stable, improve electric dehydration
Device operation conditions, the final compliance rate for improving crude oil dehydration.
The present invention, which solves its problem, to be reached by following technical solution：One kind eliminates silicic acid class insoluble matter and ternary is answered
The chemical treatments for the influence for driving electric dehydrator treatment effect are closed, its component includes alkaline agent, complexing agent.
The alkaline agent is sodium hydroxide and/or potassium hydroxide；The complexing agent is ethylenediamine tetra-acetic acid or its salt, the hydroxyls of N mono-
Ethyl-3-acetic acid ethylenediamine or its salt, 2- phosphonobutanes -1,2,4 tricarboxylic acids or its salt, ATMP or its salt, hydroxyl
Ethylidene diphosphonic acid or its salt, diethylene triamine pentamethylene phosphonic or its salt, ethylene diamine tetra methylene phosphonic acid or its salt, divinyl three
Triamine pentaacetic acid or its salt, 2- hydroxy propanes -1,2,3- tricarboxylic acids or its salt, NTA or its salt, or wherein two
Kind or three kinds of mixture.
The present invention also provides a kind of change for eliminating silicic acid class insoluble matter and being influenceed on ternary composite driving electric dehydrator treatment effect
Method, comprises the following steps：
(1) alkaline agent, complexing agent are added into electric dehydrator feed liquor；
(2) chemical feeding points of alkaline agent and complexing agent are set at electric dehydrator input duct；The import of dehydrothermal stove or electric dehydration
At device input duct.
Alkaline agent can separate to add using different grug feeding jar and dosing pump from the dosing of complexing agent, can also be advance
Mixed liquor is mixed into add together.
The principle of this method is to add alkaline agent and complexing agent in electric dehydrator feed liquor, insoluble with silicic acid class by alkaline agent
The reaction of thing, it is set to be changed into being dissolved in the ion of water again from solid particulate matter；Add complexing agent and suppress calcium carbonate under strong alkali environment
Supersaturation Deng material separates out, and thus eliminates the oil-water emulsion transition zone stablized in ground processing facility by solid particulate matter,
Dehydrator running current is reduced, avoids or reduces the number of electric field of collapsing, the final compliance rate for improving crude oil and being dehydrated.
It is of the invention to be had the advantages that compared with above-mentioned background technology：Use a kind of elimination silicic acid class of the invention
The chemical treatments that insoluble matter influences on ternary composite driving electric dehydrator treatment effect, aqueous phase silicon contains after can substantially reducing reaction
Amount, the oil-water emulsion transition zone stablized in ground processing facility by solid particulate matter is eliminated, improve the profit point of emulsion
From reducing dehydrator running current, avoid or reduces the number of electric field of collapsing, the final compliance rate for improving crude oil and being dehydrated.
Embodiment：
Below in conjunction with specific embodiment, the invention will be further described：
Embodiment 1：
300g Daqing oil field ternary composite drivings experiment station is separately added into the glass formula bottle that 19 capacity are 450ml
Electric dehydrator feed liquor (composite water cut 29.2%, aqueous phase silicone content 1513mg/L), alkaline agent and complexing agent are added by table 1, up and down
Hand will be placed in the water-bath that water temperature is 60 DEG C with square vase after shaking 100 times and stand 1h；Glass syringe is used afterwards from formula bottom of bottle portion
Extract 10-30ml water samples and test its oil content；Will formula after being taken out to the greatest extent with the bottom water in square vase with the syringe equipped with long syringe needle
Set about to shake 20 times on bottle, therefrom pour out 20-50g emulsification oil samples and test its moisture content, result of the test is shown in Table 1.
The improvement situation of the alkaline agent of table 1 and complexing agent to the electric dehydrator water-oil separating of Daqing oil field ternary composite driving experiment station
As seen from Table 1, the solid particle in electric dehydrator transition zone contains substantial amounts of siliceous material, and simulated produced fluids are quiet
Put visible 22ml profits transition zone after settling, the remaining emulsification oil mass 1513mg/L of aqueous phase, oil phase moisture content 25.8%；Filtered with filter membrane
Except the impurity in aqueous phase, oil mass 362mg/L, oil phase moisture content are emulsified without profit transition zone, aqueous phase remnants after standing sedimentation
12.2%, show that siliceous material causes influence on water-oil separating.Adding 1000mg/L alkaline agents and 500mg/L complexing agents can have
Effect removes above-mentioned insoluble siliceous material, while suppresses the supersaturation precipitation of the particle such as calcium carbonate under alkalescence condition, standing sedimentation
Profit transition zone is in 1ml or so, the remaining emulsification oil mass 500mg/L of aqueous phase or so, oil phase moisture content 12% or so, all kinds of complexings afterwards
Agent can play complexing.
Embodiment 2
The present invention is carried out in Daqing oil field experiment station.The station uses two sections of three phase separator+electric dehydrator
Formula technique carries out dewater treatment to Produced Liquid.Certain year July, station ternary combination flooding produced liquid aqueous phase silicone content 600-700mg/L,
Period is shown in Table 2 to the monitoring result of the station electric dehydrator treatment effect and operation conditions.
The Daqing oil field ternary composite driving experiment station electric dehydrator treatment effect of table 2 and operation conditions
It can be seen from the data of table 2 before taking measures, because the station Produced Liquid aqueous phase silicone content is higher, the silicic acid of generation
Operation and treatment effect of the class insoluble matter to electric dehydrator cause harmful effect.The oil content that averagely discharges water 822mg/L, electric dehydration
Device running current is increased to 87A, and water cut in purified is frequently exceeded, and up to 1.63%, the serious index beyond 0.3% will
Ask.
Afterwards, the station begins to take on chemical treatment method described in the invention, and with electric dehydrator feed liquor gauge, impact adds
Medicine stage alkaline agent NaOH chemical feeding quantity is 1000mg/L, and complexing agent ATMP4Na chemical feeding quantities are 1000mg/L.System is recovered after three days
Steadily, steady dosing stage alkaline agent NaOH chemical feeding quantities are reduced to 300mg/L, and complexing agent ATMP4Na chemical feeding quantities are reduced to 300mg/L, put down
The oil content that discharges water 275mg/L, electric dehydrator running current 30-40A, water cut in purified 0.1-0.25%, compliance rate
100%.Therefore this method is used to eliminate the influence that silicic acid class insoluble matter produces ternary composite driving electric dewatering apparatus for crude oil, can obtain
Remarkable result.
The chemical feeding points of alkaline agent and complexing agent are set at electric dehydrator input duct, the import of dehydrothermal stove or electric dehydrator are entered
At liquid pipe road.Alkaline agent can separate to add using different grug feeding jar and dosing pump from the dosing of complexing agent, can also be pre-
Mixed liquor is first mixed into add together.When alkaline agent separates to add with complexing agent, the dispensing point of alkaline agent is preferably arranged on complexing agent
The downstream of chemical feeding points, to prevent from separating out carbonate and hydroxide particles before complexing agent is added.
Claims (7)
1. a kind of chemical treatments of influence of elimination silicic acid class insoluble matter to ternary composite driving electric dehydrator treatment effect, it is special
Sign is：Its component includes alkaline agent, complexing agent.
2. the change according to claim 1 for eliminating silicic acid class insoluble matter and being influenceed on ternary composite driving electric dehydrator treatment effect
Learn inorganic agent, it is characterised in that：The alkaline agent is sodium hydroxide or potassium hydroxide.
3. the change according to claim 1 for eliminating silicic acid class insoluble matter and being influenceed on ternary composite driving electric dehydrator treatment effect
Learn inorganic agent, it is characterised in that：The complexing agent be ethylenediamine tetra-acetic acid or its salt, the hydroxyethylethylene diamine tri-acetic acids of N mono- or its
Salt, 2- phosphonobutanes -1,2,4 tricarboxylic acids or its salt, ATMP or its salt, hydroxy ethylene diphosphonic acid or its salt,
Diethylene triamine pentamethylene phosphonic or its salt, ethylene diamine tetra methylene phosphonic acid or its salt, diethylene triamine pentacetic acid (DTPA) or its salt, 2- hydroxyls
Base propane -1,2,3- tricarboxylic acids or its salt, NTA or its salt, or wherein two kinds or three kinds of mixture.
4. the change according to claim 1 for eliminating silicic acid class insoluble matter and being influenceed on ternary composite driving electric dehydrator treatment effect
Learn inorganic agent, it is characterised in that：The chemical feeding quantity of alkaline agent is with 100~1500mg/L of electric dehydrator feed liquor gauge；Complexing agent chemical feeding quantity
For with 100~1500mg/L of electric dehydrator treatment fluid gauge.
5. a kind of elimination silicic acid class insoluble matter according to claim 1 influences on ternary composite driving electric dehydrator treatment effect
Processing method, it is characterised in that：Comprise the following steps：
（1）Alkaline agent, complexing agent are added into electric dehydrator feed liquor；
（2）The chemical feeding points of alkaline agent and complexing agent are set at electric dehydrator input duct；The import of dehydrothermal stove or electric dehydrator enter
At liquid pipe road.
6. the place according to claim 5 for eliminating silicic acid class insoluble matter and being influenceed on ternary composite driving electric dehydrator treatment effect
Reason method, it is characterised in that：Alkaline agent can separate to add using different grug feeding jar and dosing pump from the dosing of complexing agent,
Mixed liquor can also be pre-mixed into add together.
7. the place according to claim 6 for eliminating silicic acid class insoluble matter and being influenceed on ternary composite driving electric dehydrator treatment effect
Reason method, it is characterised in that：When alkaline agent separates to add with complexing agent, the dispensing point of alkaline agent is arranged on complexing agent chemical feeding points
Downstream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710753727.0A CN107674701A (en) | 2017-08-29 | 2017-08-29 | It is a kind of to eliminate chemical treatments and its processing method that silicic acid class insoluble matter influences on ternary composite driving electric dehydrator treatment effect |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710753727.0A CN107674701A (en) | 2017-08-29 | 2017-08-29 | It is a kind of to eliminate chemical treatments and its processing method that silicic acid class insoluble matter influences on ternary composite driving electric dehydrator treatment effect |
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| Publication Number | Publication Date |
|---|---|
| CN107674701A true CN107674701A (en) | 2018-02-09 |
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| CN201710753727.0A Pending CN107674701A (en) | 2017-08-29 | 2017-08-29 | It is a kind of to eliminate chemical treatments and its processing method that silicic acid class insoluble matter influences on ternary composite driving electric dehydrator treatment effect |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101020815A (en) * | 2007-03-27 | 2007-08-22 | 大庆油田有限责任公司 | Method of facilitating separation of ternary combined flooding from extracted fluid or extracted water |
-
2017
- 2017-08-29 CN CN201710753727.0A patent/CN107674701A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101020815A (en) * | 2007-03-27 | 2007-08-22 | 大庆油田有限责任公司 | Method of facilitating separation of ternary combined flooding from extracted fluid or extracted water |
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Application publication date: 20180209 |
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