CN203048718U - Water treatment equipment for combination flooding crude oil produced liquid of offshore oilfield - Google Patents
Water treatment equipment for combination flooding crude oil produced liquid of offshore oilfield Download PDFInfo
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- CN203048718U CN203048718U CN 201220608767 CN201220608767U CN203048718U CN 203048718 U CN203048718 U CN 203048718U CN 201220608767 CN201220608767 CN 201220608767 CN 201220608767 U CN201220608767 U CN 201220608767U CN 203048718 U CN203048718 U CN 203048718U
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Abstract
The utility model provides water treatment equipment for the combination flooding crude oil produced liquid of an offshore oilfield. The oil-containing sewage of the crude oil produced liquid contains a binary combination flooding oil agent consisting of a polymer and a surfactant; the equipment comprises a raw material supply device, a microwave treatment device and a thermal precipitation tank, wherein the microwave treatment device receives the oil-containing sewage of the crude oil produced liquid and performs microwave treatment on the oil-containing sewage; and the thermal precipitation tank is connected with the microwave treatment device, receives the crude oil produced wastewater after microwave treatment, performs thermal precipitation of the crude oil produced wastewater and separates out oil. Preferentially, the equipment also comprises a demulsifier supply device, a gas flotation drug supply device, a gas flotation tower and a gas supply device. The equipment can realize microwave reinforcement and treatment by a chemical drug and/or a bubble method of the oil-containing sewage of the crude oil produced liquid of an offshore oilfield. The treatment equipment provided by the utility model can be realized by a relatively compact design scheme, and can perform efficient and reliable treatment on the binary combination flooding oil-containing sewage in short time.
Description
Technical field
The utility model relates to Oil extraction, particularly, relates to a kind of water treating equipment of the combination flooding crude oil extraction liquid for offshore oilfield, more specifically, relates to a kind for the treatment of unit that utilizes microwave reinforced binary heavy crude produced liquid oil-containing sewage.
Background technology
Along with development of science and technology, the seabed crude oil production becomes the important means that satisfies crude oil demand and guarantee national economy sustainable development.Because condition restriction, offshore platform be quick, efficient, energy-conservation to the processing requirements of crude oil extraction liquid and equipment volume unsuitable excessive etc.Recovering water of crude oil is the pending oily(waste)water after most of oil plant of isolating in the crude oil extraction liquid, need isolate oil wherein further, then the draining after oil/water sepn is re-injected oil well.For the consideration of environmental protection aspect, at present very high to the requirement of offshore oilfield crude oil produced liquid oil-containing sewage, therefore, significant to the research and development of the treatment facility of offshore oilfield crude oil combination flooding oily(waste)water and method.
In addition, along with Gong the utilization of conventional oil reduces day by day, heavy crude is just becoming human important petroleum resources.In recent years along with Oil extraction gradually to heaviness or poor qualityization development, the variation of oil property makes the exploitation difficulty increase, thereby has developed various reinforcement displacement of reservoir oil measures.Recently a kind of technology of reservoir sweep of exploitation is " binary combination flooding " at present, namely injecting water adding polymkeric substance and tensio-active agent, utilizes polymkeric substance and surfactants synergism to increase substantially oil recovery factor.Yet along with the Application and Development of polymkeric substance and tensio-active agent binary combination flooding new technology, oil field produced aqueous nature is more complicated, and oil-water emulsion is more serious, and the oily water treatment of crude oil combination flooding is difficulty further.
When the technology with binary combination flooding is applied to offshore oilfield, because the various condition restriction of offshore platform, the processing of combination flooding oily(waste)water is just become very thorny.Also do not develop special equipment and method up to now to satisfy the demand of offshore oilfield extracted waste water processing aspect, do not have to be advantageously applied to treatment facility and the method for " binary combination flooding " oily(waste)water yet.
In a word, in the Oil extraction field, particularly at sea the oilfield exploitation aspect is needed equipment and the method that can handle the crude oil produced liquid oil-containing sewage rapidly badly.
The utility model content
Main purpose of the present utility model is, a kind of water treating equipment of the combination flooding crude oil extraction liquid for offshore oilfield are provided, and it can carry out efficiently, handle reliably binary combination flooding crude oil produced liquid oil-containing sewage at short notice with the design of compactness.
For achieving the above object, the utility model provides a kind of water treating equipment of the combination flooding crude oil extraction liquid for offshore oilfield, combination flooding crude oil extraction liquid is the oily(waste)water that contains the binary combination flooding finish of being made up of polymkeric substance and tensio-active agent, and equipment comprises: raw material feed device; Microwave heating appts, this microwave heating appts is admitted recovering water of crude oil, and it is carried out microwave treatment; Be connected to the hot slurry tank of microwave heating appts, it admits the crude oil produced liquid oil-containing sewage after microwave treatment, and makes crude oil produced liquid oil-containing sewage heat sink falling therein, and separates fuel-displaced.
Preferably, described equipment also comprises: the emulsion splitter feedway; And the mixing tank that is connected to raw material feed device and emulsion splitter feedway, mixing tank is admitted and commingled crude produced liquid oil-containing sewage and emulsion splitter.
Preferably, described equipment also comprises: the air supporting medicine feeding apparatus, and this air supporting medicine feeding apparatus is supplied with the air supporting medicament to the crude oil produced liquid oil-containing sewage of handling through microwave treater; The air supporting tower, this air supporting tower is connected to hot slurry tank, and the crude oil produced liquid oil-containing sewage after the admission processing and from the air supporting medicament of air supporting medicine feeding apparatus; And gas supply device, gas supply device is supplied air and is formed bubble to the bottom of air supporting tower.
Preferably, microwave heating appts comprises: microwave source; Microwave transmission system, it has the coupling mechanism that is connected to microwave source, the energy regenerative pipe that is connected to the tuner of coupling mechanism and is connected to tuner; Be connected to the pot type microwave reactor of microwave transmission system, it admits pending raw material and the mixed solution of emulsion splitter, and therein they is carried out microwave treatment; And controlling box, it controls the working parameter of whole microwave heating appts.
Preferably, microwave heating appts is provided with pulser, thereby the microwave action of pulse is provided.
The utility model also provides a kind of water treatment method of the combination flooding crude oil extraction liquid for offshore oilfield, contains the binary combination flooding finish of being made up of polymkeric substance and tensio-active agent in the combination flooding crude oil extraction liquid, and described method comprises the steps:
A) the crude oil produced liquid oil-containing sewage is added to raw material feed device;
B) the crude oil produced liquid oil-containing sewage is entered in the microwave heating appts from opening for feed;
C) regulate microwave power, the crude oil produced liquid oil-containing sewage is stayed for some time in microwave heating appts carry out microwave treatment; And
D) make the crude oil extracted waste water after microwave treatment enter hot slurry tank, isolate the oil on upper strata.
Preferably, this method also comprises the steps: to add emulsion splitter in the crude oil produced liquid oil-containing sewage, and mixed in mixing tank before above-mentioned step b), then carries out above-mentioned step b)～d) again.
Preferably, emulsion splitter can for example adopt the ZY-02 type, HR type emulsion splitter, or HR emulsion splitter and HQ-1 positively charged ion emulsion splitter are with the composite emulsion splitter of 7:3 (v/v), ZY-02 is with propylene glycol polyoxyethylene polyoxy third rare ether, resol polyoxyethylene polyoxy third rare ether, the mixture of Nonyl pheno polyoxy third rare ether and vinylformic acid and the maleic anhydride compound nonionic demulsifier that the esterification polymerization obtains under acidic conditions, HR type emulsion splitter is 1 of diphenylmethanediisocyanate (MDI) modification, 3 propanediol polyoxypropylene Soxylat A 25-7s, HQ-1 positively charged ion emulsion splitter is by epoxy chloropropane and diethylamine, the polyquaternium emulsion splitter of the high-cation degree that reacting ethylenediamine obtains.
Preferably, this method also comprises the steps: e) extract lower floor's solution from hot slurry tank, in the solution that extracts, add the air supporting medicament, and send into the air supporting tower; And f) to air supporting tower air supply, form bubble and act on for some time, extract fuel-displaced then.
Preferably, the air supporting medicament can be selected polymerize aluminum chloride or HQ-1 positively charged ion emulsion splitter for use, and HQ-1 positively charged ion emulsion splitter is the polyquaternium emulsion splitter of the high-cation degree that obtained by epoxy chloropropane and diethylamine, reacting ethylenediamine.
Adopt treatment facility and the method for the crude oil produced liquid oil-containing sewage for offshore oilfield of the present utility model, microwave action makes crude oil combination flooding oily(waste)water Semi-polarity molecular motion degree aggravate, the degree of compression double electric layer increases, and can produce the crude oil produced liquid oil-containing sewage to strengthen demulsification.The strengthening effect of microwave has reduced treatment time and the emulsion splitter consumption of crude oil combination flooding oily(waste)water.In addition, under the situation of microwave treatment, add emulsion splitter, can significantly improve the de-oiling rate.And after adding that air supporting is handled, can further reduce the oleaginousness of taking off in the water of back.
In addition, treatment facility and the method for the recovering water of crude oil for offshore oilfield of the present utility model can realize with the design of relative compact, and can carry out efficiently, handle reliably the binary combination flooding oily(waste)water at short notice.
Description of drawings
Fig. 1 is the schematic flow sheet according to the crude oil produced liquid oil-containing sewage treatment facility of the utility model preferred embodiment; And
Fig. 2 shows the microwave heating appts that adopts in the crude oil produced liquid oil-containing sewage treatment facility according to the utility model preferred embodiment.
Embodiment
As shown in Figure 1, water treating equipment according to the combination flooding crude oil extraction liquid of the utility model preferred embodiment are always indicated by label 100, it mainly comprises: raw material (be the crude oil produced liquid oil-containing sewage, wherein contain the binary combination flooding finish of being made up of polymkeric substance and the tensio-active agent) feedway of being made up of head tank 1 and feedstock pump 2; The emulsion splitter feedway of being formed by emulsion splitter jar 3 and emulsion splitter injection pump 4; The air supporting medicine feeding apparatus of being formed by air supporting pharmacy jar 5 and air supporting medicament injection pump 6; Be connected to the mixing tank 7 of raw material feed device and emulsion splitter feedway, it is admitted and mixing raw material and emulsion splitter; Be connected to the microwave heating appts 8 of mixing tank 7, it is admitted from the raw material of mixing tank 7 and the mixed solution of emulsion splitter, and mixed solution is carried out microwave treatment; Be connected to the hot slurry tank 9 of microwave heating appts 8, it admits the mixed solution after microwave treatment, and makes mixed solution heat sink falling therein, and isolates part oil; Air supporting tower 10, this air supporting tower 10 is connected to hot slurry tank 9, and the mixed solution after the admission processing and from the air supporting medicament of air supporting medicine feeding apparatus; And gas supply device (for example air compressor) 11, it is to bottom of described air supporting tower 10 supply air and form bubble, so that mixed solution further handled in the air supporting tower, thereby You Heshui is separated further.
In addition, in order to control temperature, can be provided for first water circulation system of microwave heating appts 8, and second water circulation system that is used for head tank 1.
Fig. 2 shows the custom-designed microwave heating appts 8 that adopts in the water treating equipment of combination flooding crude oil extraction liquid of the present utility model, and it mainly comprises: microwave source 81; Microwave transmission system, the energy regenerative pipe 84 that it has the coupling mechanism 82 that is connected to microwave source 81, the tuner 83 that is connected to coupling mechanism 82 and is connected to tuner 83; Be connected to the pot type microwave reactor 85 of described microwave transmission system, it admits pending raw material and the mixed solution of emulsion splitter, and therein they is carried out microwave treatment; And controlling box 86, it controls the working parameter of whole microwave heating appts, for example temperature and power etc.
As a kind of version, can also pulser be set to microwave heating appts, thereby the microwave action of pulse is provided.Have again, the temperature and pressure monitoring device can be set in the outlet of microwave heating appts, so that the temperature and pressure of the crude oil extracted waste water that monitoring is flowed out.
According to the processing to the crude oil produced liquid oil-containing sewage of the utility model preferred embodiment be generally speaking with microwave application in the marine produced liquid oil-containing sewage treatment technique that has adopted polymkeric substance and tensio-active agent binary combination flooding finish, this is a kind of brand-new technology.
Microwave be frequency at 300MHz～300GHz and wavelength the hertzian wave in 0.1cm～100cm scope, it is between the ir radiation and radiowave of electromagnetic spectrum.The application's applicant studies equipment and the method for microwave reinforced crude oil combination flooding oily(waste)water, the basic experiment condition that adopts for example is: initial oil-contg 2500mg/L, tensio-active agent and polymer concentration are 800mg/L, emulsion splitter dosage 100mg/L, 45 ℃ of temperature.
Employing aforesaid device is described to the crude oil extracted waste water below with reference to Fig. 1, particularly the method that the offshore oilfield produced liquid oil-containing sewage is handled.
It should be noted, though figure 1 illustrates about using device and the step of emulsion splitter and air supporting medicament, but should be appreciated that, the utility model can have four kinds of implementations, the one, handle the crude oil extracted waste water with microwave heating appts separately, the 2nd, handle the crude oil extracted waste water with microwave with the mode that chemical agent (emulsion splitter) combines, the 3rd, handle the crude oil extracted waste water with the mode that the gentle float glass process of microwave combines, the 4th, handle the crude oil extracted waste water with the mode that microwave, the gentle float glass process three of chemical agent combine.
So-called " microwave treatment " and " chemical agent processing " is as the term suggests handle with microwave and chemical agent exactly.
" air supporting method " refers to adopt in the crude oil extracted waste water physical method to form a large amount of micro-bubbles, bubble can provide the mass efficient surface-area, increase the touch opportunity of tensio-active agent and oil droplet, tiny oil droplets is after flocculation, condense mutually and form big flco, its global density floats to the water surface less than water in the rising gradually along with bubble, thereby realizes the separation of profit.In this technological process, preferably add the air supporting medicament to strengthen flocculating effect.
Concrete steps to the microwave treatment of crude oil produced liquid oil-containing sewage are:
A) the crude oil produced liquid oil-containing sewage is added to head tank 1, preferably is heated certain temperature (for example 45 ℃);
B) the raw material produced liquid oil-containing sewage is entered in the pot type microwave reactor 85 from opening for feed 851;
C) regulate microwave power, the crude oil produced liquid oil-containing sewage is stayed for some time in pot type microwave reactor 85 carry out microwave treatment; And
D) make the crude oil extracted waste water after microwave treatment enter hot slurry tank 9, isolate the oil on upper strata.
Step to crude oil produced liquid oil-containing sewage additional chemical chemicals treatment comprises: before above-mentioned step b), add emulsion splitter in the crude oil produced liquid oil-containing sewage, and be preferably in the mixing tank 7 and mixed, then carry out above-mentioned step b)～d) again.Wherein, emulsion splitter can for example adopt ZY-02 type, HR type emulsion splitter or HR emulsion splitter and HQ-1 positively charged ion emulsion splitter with the composite emulsion splitter of 7:3 (v/v).ZY-02 is with the mixture of propylene glycol polyoxyethylene polyoxy third rare ether, resol polyoxyethylene polyoxy third rare ether, Nonyl pheno polyoxy third rare ether and vinylformic acid and the maleic anhydride compound nonionic demulsifier that the esterification polymerization obtains under acidic conditions.HR type emulsion splitter is 1,3 propanediol polyoxypropylene Soxylat A 25-7 of diphenylmethanediisocyanate (MDI) modification.HQ-1 positively charged ion emulsion splitter is the polyquaternium emulsion splitter of the high-cation degree that obtained by epoxy chloropropane and diethylamine, reacting ethylenediamine,
The step that additional air supporting is handled to the crude oil produced liquid oil-containing sewage comprises: e) extract lower floor's solution from hot slurry tank 9, add the air supporting medicament in the solution that extracts, and send into air supporting tower 10; And f) to air supporting tower 10 air supplies, form bubble and act on for some time, extract fuel-displaced then.Wherein, the air supporting medicament can be selected polymerize aluminum chloride or HQ-1 positively charged ion emulsion splitter for use.Above-mentioned HQ-1 positively charged ion emulsion splitter especially can be avoided producing the mud blocking pipe as the air supporting medicament.
It is as follows that the applicant carries out the result of study that the crude oil produced liquid oil-containing sewage handles by above-mentioned equipment and method.
Along with the increase of microwave power, ascendant trend slowed down after the de-oiling of crude oil combination flooding oily(waste)water took the lead in raising.
Importantly, the microwave reinforced settling time that can significantly shorten the crude oil produced liquid oil-containing sewage that contains compound oil displacement agent.At the microwave treatment sedimentation then in 3 minutes under microwave power 300W condition of commingled crude combination flooding oily(waste)water, reach close de-oiling rate and do not reduce about 60 minutes of settling time than not adding microwave.
Adopt after the microwave method intensive treatment, reach identical de-oiling rate, adopt the demulsifier concentration of the required adding of microwave reinforced produced liquid oil-containing sewage breakdown of emulsion, be lower than and do not add the required emulsion splitter dosage of microwave under the equal conditions, i.e. microwave reinforced effect can reduce the breakdown of emulsion dosage of adding.
In addition, when carrying out the air supporting processing, the de-oiling rate behind the adding air supporting medicament obviously improves, and along with the prolongation of air supporting time, the de-oiling rate rises.But along with the further prolongation of air supporting time, the trend that the de-oiling rate rises slows down, and the therefore suitable air supporting time is 20 minutes.
The offshore oil and gas platform is because the restriction of operating space, when reaching higher demulsification, also will realize rapid and miniaturization equipment to the processing of crude oil produced liquid oil-containing sewage.Microwave can accelerate the breakdown of emulsion process of crude oil extracted waste water, and the air supporting method can significantly improve the treatment effect of crude oil extracted waste water, reduces and takes off oleaginousness in the water of back.The result that microwave and air supporting combination is handled shows the increase along with air supporting medicament (for example HQ-1) concentration, and crude oil extracted waste water de-oiling rate rises.
In a word, microwave action makes crude oil combination flooding oily(waste)water Semi-polarity molecular motion degree aggravate, and the degree of compression double electric layer increases, and can produce the crude oil produced liquid oil-containing sewage to strengthen demulsification.Suitable microwave condition is: microwave power 300W, 3 minutes microwave time.Microwave reinforced effect has reduced treatment time and the emulsion splitter consumption of crude oil combination flooding oily(waste)water.In addition, under the situation of microwave treatment, add emulsion splitter, can significantly improve the de-oiling rate.And after adding that air supporting is handled, can further reduce the oleaginousness of taking off in the water of back.
Though abovely describe in detail in conjunction with treatment facility and the method for preferred embodiment to crude oil produced liquid oil-containing sewage of the present utility model, those of ordinary skill in the art makes the various changes that are equal to and modification on the basis of described content in the text.For example, the formation of raw material feed device, emulsion splitter feedway and air supporting medicine feeding apparatus can change, and is not limited to the form of container and transfer pump; Except air compressor, can also adopt the gas supply device of other forms such as impeller, etc.Therefore, protection domain of the present utility model should be limited by described claims.
Claims (5)
1. a crude oil produced liquid oil-containing sewage treatment facility that is used for offshore oilfield contains the binary combination flooding finish of being made up of polymkeric substance and tensio-active agent in the described crude oil produced liquid oil-containing sewage, it is characterized in that described equipment comprises: raw material feed device; Microwave heating appts (8), described microwave heating appts is admitted the crude oil produced liquid oil-containing sewage, and it is carried out microwave treatment; Be connected to the hot slurry tank (9) of microwave heating appts, it admits the crude oil extracted waste water after microwave treatment, and makes crude oil extracted waste water heat sink falling therein, and separates fuel-displaced.
2. crude oil produced liquid oil-containing sewage treatment facility as claimed in claim 1 is characterized in that, also comprises: the emulsion splitter feedway; And the mixing tank (7) that is connected to described raw material feed device and described emulsion splitter feedway, described mixing tank is admitted and commingled crude produced liquid oil-containing sewage and emulsion splitter.
3. crude oil produced liquid oil-containing sewage treatment facility as claimed in claim 1 or 2 is characterized in that, also comprises: the air supporting medicine feeding apparatus, and described air supporting medicine feeding apparatus is supplied with the air supporting medicament to the recovering water of crude oil of handling through described microwave treater (8); Air supporting tower (10), described air supporting tower is connected to described hot slurry tank (9), and the crude oil extracted waste water after the admission processing and from the air supporting medicament of air supporting medicine feeding apparatus; And gas supply device (11), described gas supply device is supplied air and is formed bubble to the bottom of described air supporting tower.
4. crude oil produced liquid oil-containing sewage treatment facility as claimed in claim 1 is characterized in that, described microwave heating appts (8) comprising: microwave source (81); Microwave transmission system, the energy regenerative pipe (84) that it has the coupling mechanism (82) that is connected to microwave source, the tuner (83) that is connected to coupling mechanism and is connected to tuner; Be connected to the pot type microwave reactor (85) of described microwave transmission system, it admits pending raw material and the mixed solution of emulsion splitter, and therein they is carried out microwave treatment; And controlling box (86), it controls the working parameter of whole microwave heating appts.
5. crude oil produced liquid oil-containing sewage treatment facility as claimed in claim 1 is characterized in that, described microwave heating appts (8) is provided with pulser, thereby the microwave action of pulse is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220608767 CN203048718U (en) | 2012-11-16 | 2012-11-16 | Water treatment equipment for combination flooding crude oil produced liquid of offshore oilfield |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220608767 CN203048718U (en) | 2012-11-16 | 2012-11-16 | Water treatment equipment for combination flooding crude oil produced liquid of offshore oilfield |
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| CN203048718U true CN203048718U (en) | 2013-07-10 |
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| CN 201220608767 Expired - Lifetime CN203048718U (en) | 2012-11-16 | 2012-11-16 | Water treatment equipment for combination flooding crude oil produced liquid of offshore oilfield |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107057754A (en) * | 2017-05-26 | 2017-08-18 | 天津正达科技有限责任公司 | A kind of demulsifier of suitable high-moisture percentage heavy crude emulsion |
| CN110563287A (en) * | 2019-08-30 | 2019-12-13 | 南京庞瑞科技有限公司 | Greasy dirt processing system based on internet of things |
-
2012
- 2012-11-16 CN CN 201220608767 patent/CN203048718U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107057754A (en) * | 2017-05-26 | 2017-08-18 | 天津正达科技有限责任公司 | A kind of demulsifier of suitable high-moisture percentage heavy crude emulsion |
| CN110563287A (en) * | 2019-08-30 | 2019-12-13 | 南京庞瑞科技有限公司 | Greasy dirt processing system based on internet of things |
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Granted publication date: 20130710 |