CN203833722U - A-level water treatment system of offshore platform - Google Patents
A-level water treatment system of offshore platform Download PDFInfo
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- CN203833722U CN203833722U CN201420204179.8U CN201420204179U CN203833722U CN 203833722 U CN203833722 U CN 203833722U CN 201420204179 U CN201420204179 U CN 201420204179U CN 203833722 U CN203833722 U CN 203833722U
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- filter
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- oil
- metal film
- titanium metal
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 65
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052751 metal Inorganic materials 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 23
- 239000010936 titanium Substances 0.000 claims abstract description 23
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 23
- 239000000835 fiber Substances 0.000 claims abstract description 17
- 238000012545 processing Methods 0.000 claims description 23
- 238000001914 filtration Methods 0.000 claims description 12
- 239000010865 sewage Substances 0.000 abstract description 21
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000004907 flux Effects 0.000 abstract description 3
- 239000003513 alkali Substances 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 239000002253 acid Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 12
- 239000002245 particle Substances 0.000 description 12
- 239000000126 substance Substances 0.000 description 8
- 239000002699 waste material Substances 0.000 description 8
- 238000001556 precipitation Methods 0.000 description 7
- 238000011161 development Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 241000758789 Juglans Species 0.000 description 4
- 235000009496 Juglans regia Nutrition 0.000 description 4
- 230000003750 conditioning effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000706 filtrate Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 235000020234 walnut Nutrition 0.000 description 4
- 239000006004 Quartz sand Substances 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005188 flotation Methods 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229920004934 Dacron® Polymers 0.000 description 1
- 229920004933 Terylene® Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001458 anti-acid effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002332 oil field water Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
Landscapes
- Filtering Materials (AREA)
- Filtration Of Liquid (AREA)
Abstract
The utility model discloses an A-level water treatment system of an offshore platform. The water treatment system comprises an oil skimming tank, a hydrocyclone, a modified fiber ball filter, a double-medium filter and a titanium metal film filter, wherein a water outlet of the oil skimming tank is communicated with an inlet of the hydrocyclone, and an oil outlet of the oil skimming tank is communicated with a slop oil tank; an outlet of the hydrocyclone is communicated with an inlet of the modified fiber ball filter; an outlet of the modified fiber ball filter is communicated with the double-medium filter; an outlet of the double-medium filter is communicated with the titanium metal film filter. According to the A-level water treatment system of the offshore platform, a titanium metal film in the titanium metal film filter has good acid resistance, alkali resistance and oxidation resistance, so the A-level water treatment system has the advantages of being long in replacement cycle, small in size, large in flux and convenient to maintain and backflush and is particularly applicable to the offshore platform with operation cost and maintenance cost higher than those of a land oil field; besides, the specification of equipment in the process can be adjusted to meet requirements of the offshore platform for sewage treatment with different capacities according to the requirements of the water treatment capacity.
Description
Technical field
The utility model relates to a kind of A level Water quality processing system of offshore platform.
Background technology
In recent years, exploitation to marine oil deepens continuously, marine petroleum development production technology improves constantly, oil field water production rate also significantly improves, for active response national environmental protection is called, with volume increase, do not increase dirty criterion, mode in conjunction with displacement of reservoir oil by filling water is constantly upgraded and innovates offshore oil field development production technology, in the flow process of platform sewage disposal at sea, (oil-containing was less than 15mg/L to C1 level in the past, suspended substance is less than 5mg/L, median particle size is less than 3 μ m) water quality, (suspended substance is less than 2mg/L to be increased to A level, oil-containing is less than 6mg/L, median particle size is less than 1.5 μ m) water quality.
The general flow that onshore oil field process for producing sewage reaches A level water filling standard comprises following two kinds:
1, sewage precipitation tank+gas flotation machine+walnut shell filter+quartz filter+high-precision filter (titanium metal film strainer, PVC film filter, purpose ceramic-film filter), typical process is as shown in Figure 1;
2, sewage precipitation tank+walnut shell filter+biochemical treatment tank+high-precision filter (titanium metal film strainer, PVC film filter, purpose ceramic-film filter).
Take the flow process shown in Fig. 1 as example, first oily(waste)water stops for a long time by sewage precipitation tank, sedimentation under action of gravity, then enter gas flotation machine and remove compared with larger oil droplet particle, by walnut shell filter and quartz filter, adopt different filtration mediums to remove in sewage less oil droplet and suspended particle and provide filtration condition for high-precision filter.
General first in sewage precipitation tank standing several hours to tens hours of the oily(waste)water of onshore oil field output, utilizes profit density difference to realize natural separation, removes the larger oil droplet of diameter in sewage.These sewage precipitation tanks are bulky, simple in structure, cheap, are highly suitable for the well-off onshore oil field in space, and onshore oil field sewage work has enough spaces to build the sewage precipitation tank of this bulky.
Biochemical treatment tank is to utilize acclimated microorganism to remove suspended substance and the sump oil in sewage, and this mode needs enough spaces to build biochemistry pool equally, for oily(waste)water provides the residence time of tens hours in biochemistry pool.This mode treatment effect is good, stable effluent quality, and the water after processing can directly reach A level by high-precision filter by water conditioning.
Generally, offshore oil field development cost can exceed much than onshore oil field, thereby all can have strict control, the careless slightly investment that will significantly increase offshore oilfield to aspects such as the floor space of offshore platform and space, grosss weight of equipment.In addition, the Operation and Maintenance personnel of offshore production platform and all consumptive materials etc. all need to send to offshore platform by sea-freight or the mode of shipping, thus the operation of platform, maintenance cost on year-on-year basis onshore oil field also can exceed a lot.Offshore platform sewage disposal flow process in the past generally adopts two-stage or three grades of separated processing modes, and after processing, water quality reaches C grade standard.After at sea platform also has relevant art production waste can be processed at present, water quality does not reach A level water quality.
Utility model content
The purpose of this utility model is to provide a kind of A level Water quality processing system of offshore platform, utility model people of the present utility model is by a large amount of investigations and experimental study, in conjunction with offshore platform limited space, the limited feature of gross weight of equipment, obtained a kind ofly oily(waste)water to be processed to the treatment system that obtains A level water quality.
The A level Water quality processing system of offshore platform provided by the utility model, comprises skimming tank, hydrocyclone, modified fiber ball filter, two medium filter and titanium metal film strainer;
The water outlet of described skimming tank is connected with the entrance of described hydrocyclone, and oil outlet is connected with slop oil tank; The outlet of described hydrocyclone is connected with the entrance of described modified fiber ball filter; The outlet of described modified fiber ball filter is connected with described pair of medium filter; The outlet of described pair of medium filter is connected with described titanium metal film strainer.
In the A level Water quality processing system of the utility model offshore platform, the filtrate of described modified fiber ball filter can be selected hydrophilic oleophobic modified fibrous globule filtering material, and oil, suspended particle etc. in water are had to good absorption interception function; Can obtain by existing fiber-ball filter media (as terylene etc.) is carried out to conventional hydrophilic oleophobic modification, as the hydrophilic oleophobic fiber-ball filter media that adopts the Ke Yuan of Gongyi City water-purifying material factory to pass through.
In the A level Water quality processing system of the utility model offshore platform, described pair of medium filter object is suspended substance, particle and the colloid in removing water, reduces turbidity and the SDI value of water inlet; Its filtrate can select quartz sand, hard coal, gac, magnetite, open up any two in garnet, porous ceramics and baton round etc., and the quartz sand that the hard coal that particle diameter is 0.8～1.8mm as selected and particle diameter are 0.5～1.2mm is as filtrate.
In the A level Water quality processing system of offshore platform of the present utility model, on described hydrocyclone, be also provided with an outlet being connected with slop oil tank.
In the A level Water quality processing system of offshore platform of the present utility model, on described titanium metal film strainer, be also provided with the outlet being connected with described slop oil tank and water filling surge tank respectively.
In the A level Water quality processing system of offshore platform of the present utility model, described titanium metal film strainer comprises dead-end filtration film and cross flow filter film, and the aperture, worry hole of described dead-end filtration film is 10 μ m, and the aperture, worry hole of described cross flow filter film is 2 μ m～0.5 μ m.
In the A level Water quality processing system of the utility model offshore platform, the liquid that comes that described skimming tank can be 1000mg/L left and right to oleaginousness plays the effect of current stabilization and coagulation, makes little oil droplet be polymerized to larger oil droplet, for follow-up oil removing provides favourable condition.Described hydrocyclone plays the object of efficient de-oiling: the production waste of high pressure tangentially enters described hydrocyclone by pressure reduction, its pressure energy is converted into kinetic energy and produces powerful centrifugal force in the rotation of hydrocyclone inner high speed, accelerate oily water separation, improve de-oiling efficiency.Described modified fiber ball, by modified fibre, is removed less oil droplet and particle in sewage, through this grade of equipment, oil-containing and suspension content all can be dropped to 20mg/L.Described pair of medium filter can all drop to 10mg/L left and right by the oil-containing and the SS (suspended substance) that produce in water, with the impact that guarantees water conditioning and deal with Production Flow Chart fluctuation.
The use procedure of the A level Water quality processing system of the utility model offshore platform is as follows: first oily(waste)water enters and in described skimming tank, carry out current stabilization and coagulation, then by described hydrocyclone, utilize powerful centrifugal force to accelerate oil water separation process, by described modified fiber ball, removing Oil in Sewage Water again drips and suspended substance, enter again the less oil droplet of removal and suspended substance in described pair of medium filter, for described titanium metal film strainer provides the filtration condition of high-quality, and finally by described titanium metal strainer, water conditioning is arrived to A level water quality standard.
The A level Water quality processing system of the offshore platform that the utility model provides, the feature that is directed to offshore platform sewage disposal can the effectively requirement to A level injection water quality by the about 1000mg/L sewage disposal of oleaginousness, can effectively be applicable to marine petroleum development, meet the requirement of offshore platform installation, construction and production maintenance.In the titanium metal film strainer arranging in the utility model, titanium metal film has antiacid, alkali resistant and oxidation resistent susceptibility preferably, have that the replacement cycle is long, volume is little, flux is large, safeguard backwash feature easily, be specially adapted to the Operation and Maintenance cost higher offshore platform of onshore oil field on year-on-year basis.In addition, can to the specification of equipment adjustment in flow process, meet according to the requirement of water treatment amount the requirement of offshore platform different scales sewage disposal.
Accompanying drawing explanation
Fig. 1 is the schema that existing onshore oil field process for producing sewage reaches A level water filling standard.
Fig. 2 is the schematic diagram of the A level Water quality processing system of the utility model offshore platform.
In figure, each mark is as follows:
1 skimming tank, 2 hydrocyclones, 3 modified fiber ball filters, the 4 pairs of medium filters, 5 titanium metal film strainers.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further, but the utility model is not limited to following examples.
As shown in Figure 1, the A level Water quality processing system of the offshore platform that the utility model provides, it comprises skimming tank 1, hydrocyclone 2, modified fiber ball filter 3, two medium filter 4 and titanium metal film strainer 5.Wherein, 1 pair of oleaginousness of skimming tank is that the liquid that comes of 1000mg/L left and right plays the effect of current stabilization and coagulation, makes little oil droplet be polymerized to larger oil droplet, for follow-up oil removing provides favourable condition, its water outlet is connected with the entrance of hydrocyclone 2, and oil outlet is connected with slop oil tank.Hydrocyclone plays the object of efficient de-oiling: the production waste of high pressure tangentially enters hydrocyclone 2 by pressure reduction, its pressure energy is converted into kinetic energy and produces powerful centrifugal force in the rotation of hydrocyclone inner high speed, accelerate oily water separation, improve de-oiling efficiency, its water outlet is connected with the entrance of modified fiber ball filter 3, and oil outlet is connected with slop oil tank.The hydrophilic oleophobic modified dacron of the selection of filtering material ball filtering material (Gongyi City Ke Yuan water-purifying material factory) of modified fiber ball filter 3, oil, suspended particle etc. in water are had to good absorption interception function, through this grade of equipment, oil-containing and suspension content all can be dropped to 20mg/L, its outlet is connected with two medium filters 4.Two medium filters 4 can all drop to 10mg/L left and right by the oil-containing and the SS (suspended substance) that produce in water, with the impact that guarantees water conditioning and deal with Production Flow Chart fluctuation; Its filtrate is that particle diameter footpath is the hard coal of 0.8～1.8mm and the quartz sand that particle diameter is 0.5～1.2mm.The outlet of two medium filters 4 is connected with titanium metal film strainer 5, wherein titanium metal film strainer 5 has that the replacement cycle is long, volume is little, flux is large, safeguard backwash feature easily, be specially adapted to the Operation and Maintenance cost higher offshore platform of onshore oil field on year-on-year basis, it comprises dead-end filtration film and cross flow filter film, wherein the filter opening aperture of dead-end filtration film is 10 μ m, and the filter opening aperture of cross flow filter film is 2 μ m～0.5 μ m.Titanium metal film strainer 5 is also connected with slop oil tank and water filling surge tank respectively.
Compare with onshore oil field treatment system, the utility model has substituted the gentle flotation of sewage precipitation tank with skimming tank and hydrocyclone; In conjunction with the feature of actual processing effect and offshore platform, by the conventional walnut shell filter in sea and quartz filter two medium filters that unite two into one, reduced number of devices and weight, improved space availability ratio, dwindled platform area.Compare with onshore oil field A level Water quality processing system, there is significant advantage and extra large oilstone oil Development and Production feature, contrast as shown in table 1.
The comparison of the A level Water quality processing system of table 1 the utility model offshore platform and onshore oil field A level Water quality processing system
By the data in table 1, can be found out, in the A of WZ design of offshore level high precision water quality treatment scheme, can not only meet technique waterflooding requirement, also press close to offshore oilfield characteristic simultaneously, reduce platform usable floor area, reduced platform overall weight, and can complete efficiently processing target, also there is suitable economy, greatly reduced oil-field development production cost simultaneously.
Claims (4)
1. an A level Water quality processing system for offshore platform, is characterized in that: described treatment system comprises skimming tank, hydrocyclone, modified fiber ball filter, two medium filter and titanium metal film strainer;
The water outlet of described skimming tank is connected with the entrance of described hydrocyclone, and oil outlet is connected with slop oil tank; The outlet of described hydrocyclone is connected with the entrance of described modified fiber ball filter; The outlet of described modified fiber ball filter is connected with described pair of medium filter; The outlet of described pair of medium filter is connected with described titanium metal film strainer.
2. treatment system according to claim 1, is characterized in that: on described hydrocyclone, be also provided with an outlet being connected with slop oil tank.
3. treatment system according to claim 2, is characterized in that: on described titanium metal film strainer, be also provided with the outlet being connected with described slop oil tank and water filling surge tank respectively.
4. treatment system according to claim 3, is characterized in that: described titanium metal film strainer comprises dead-end filtration film and cross flow filter film, and the filter opening aperture of described dead-end filtration film is 10 μ m, and the filter opening aperture of described cross flow filter film is 2 μ m～0.5 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420204179.8U CN203833722U (en) | 2014-04-24 | 2014-04-24 | A-level water treatment system of offshore platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420204179.8U CN203833722U (en) | 2014-04-24 | 2014-04-24 | A-level water treatment system of offshore platform |
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| CN203833722U true CN203833722U (en) | 2014-09-17 |
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| CN201420204179.8U Expired - Lifetime CN203833722U (en) | 2014-04-24 | 2014-04-24 | A-level water treatment system of offshore platform |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104402132A (en) * | 2014-09-28 | 2015-03-11 | 中石化石油工程设计有限公司 | Equipment and method for fine filtering of ultra-low permeability oil field A1-grade reinjection water |
| CN105000688A (en) * | 2014-04-24 | 2015-10-28 | 中国海洋石油总公司 | A-level water treatment system of offshore platform |
-
2014
- 2014-04-24 CN CN201420204179.8U patent/CN203833722U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105000688A (en) * | 2014-04-24 | 2015-10-28 | 中国海洋石油总公司 | A-level water treatment system of offshore platform |
| CN105000688B (en) * | 2014-04-24 | 2017-09-15 | 中国海洋石油总公司 | The A level Water quality processing systems of offshore platform |
| CN104402132A (en) * | 2014-09-28 | 2015-03-11 | 中石化石油工程设计有限公司 | Equipment and method for fine filtering of ultra-low permeability oil field A1-grade reinjection water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC RESEARCH INSTITUTE Co.,Ltd. Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140917 |