CN108147500A - Horizontal type free water removing device and removing method - Google Patents
Horizontal type free water removing device and removing method Download PDFInfo
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- CN108147500A CN108147500A CN201711279789.9A CN201711279789A CN108147500A CN 108147500 A CN108147500 A CN 108147500A CN 201711279789 A CN201711279789 A CN 201711279789A CN 108147500 A CN108147500 A CN 108147500A
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- dewatering container
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- plate
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 111
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000000926 separation method Methods 0.000 claims abstract description 52
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 235000019476 oil-water mixture Nutrition 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 5
- 235000019198 oils Nutrition 0.000 claims description 53
- 239000002245 particle Substances 0.000 claims description 15
- 238000005452 bending Methods 0.000 claims description 12
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- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 230000000737 periodic effect Effects 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 1
- 230000018044 dehydration Effects 0.000 abstract description 9
- 238000006297 dehydration reaction Methods 0.000 abstract description 9
- 239000003921 oil Substances 0.000 description 57
- 239000012071 phase Substances 0.000 description 34
- 230000000694 effects Effects 0.000 description 11
- 238000012545 processing Methods 0.000 description 11
- 239000010779 crude oil Substances 0.000 description 8
- 239000004519 grease Substances 0.000 description 6
- 239000002609 medium Substances 0.000 description 6
- 230000007774 longterm Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000011206 ternary composite Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
- Removal Of Floating Material (AREA)
Abstract
The invention discloses a horizontal free water removal device and a removal method, which comprises a pre-separation pipe and a dehydration container, wherein the pre-separation pipe is used for oil-water separation and is horizontally arranged, the axis of the pre-separation pipe is as high as the axis of the dehydration container, the front end of the pre-separation pipe is a liquid inlet for receiving an oil-water mixture obtained from the previous process, and the tail end of the pre-separation pipe is communicated with the tail end of the dehydration container, and a large-inclination-angle split wing-shaped plate body is arranged in the dehydration container.
Description
Technical field
The present invention relates to oilfield surface engineering oil and gas and water from processing technology field, more particularly to a kind of horizontal free water
Removing means and removal methods.
Background technology
Oil field oil gang of wells output liquid phase be ultra-high water-containing crude oil gas-liquid mixture.At present, mainly using horizontal trip
From water remover by the ultra-high water-containing crude oil separating treatment of oil well group's output into low wet crude and oily wastewater.However this is horizontal
Free water knockout (FWKO) is primarily present problems with：
(1) treatment effeciency is not high, equipment volume is huge, cost is high
The maximum specification of horizontal free water knockout (FWKO) is commonly used as 4 × 20m of Ф (diameter 4m, length 20m) in oil field, total measurement (volume)
For 200m3, cost is 1,400,000 yuan or so, and the design maximum processing liquid measure under the conditions of polymer displacement of reservoir oil is 10000m3/d.To the greatest extent
Pipe is provided with multiple coalescent pack heaps inside container, but when silt content is larger in Produced Liquid, filler heap will lose originally
Wetting characteristics, and generate silt and silt up, lead to the reduction of its treatment effeciency, and difficult, costly, the unfavorable safety collar of maintenance operation
It protects.
(2) structure and separation mechanism are unreasonable
Existing horizontal free water knockout (FWKO) takes general treatment mechanism using single jar structure, i.e. ultra-high water-containing crude oil
Oil water mixture carries out water-oil separating, and the tradition that existing remover adheres to removing moisture from crude oil takes off after entering separator
Water theory, the Produced Liquid for accounting for more than 90% liquid phase total amount to water phase using the separator of this conventional dehydration theory carry out grease point
From remover structure, separation mechanism etc. cannot all meet the requirement of processed medium so that low separation efficiency, cost are high, easy
Silt is caused to silt up, water-oil separating efficiency significantly declines.
(3) a kind of opposite opened aerofoil profile plate and combinations thereof body is disclosed in the patent application of Publication No. CN 103752042A
Oil Water Sludge Separation component and Oil Water Sludge Separation method, the applicable elements of opposite opened wing-shaped plate therein are relatively narrow
1) the plate face inclination angle of the opposite opened wing-shaped plate and combinations thereof body Oil Water Sludge Separation component is smaller, after long-time service, plate
Still there is the paraffin attachment in silt particle and crude oil on face, reduce plate spacing, although not silting up, the circulation of cross section
Area is reduced, and is reduced by the flow velocity of processing medium, treating capacity reduces.
2) the plate layer layout density of the opposite opened wing-shaped plate and combinations thereof body Oil Water Sludge Separation component body is larger, can only can adopt
With the board making of thickness 1-1.5mm, for anti-corrosion and long-life, it has to be made using stainless sheet steel, cost is higher.
3) since the opposite opened wing-shaped plate must be made using stainless sheet steel, to reduce cost and making equipment in price
Possess advantage, must just reduce the dosage of wing plate body, that is, reduce the size of equipment, so that the treating capacity of equipment is smaller,
The specification of equipment of applicable three phase separator is only 1.4 × 15m of Ф at present, and processing liquid measure is 4000-6000t/d, and conventional three
The specification of phase separator is Ф 4 × 24m of 4 × 20m or Ф, processing liquid measure 8000-10000t/d.
Therefore, the lower efficient free water removal of a kind for the treatment of capacity bigger, processed in units liquid measure cost is badly in need of in this field
Free water removal device.
Invention content
The purpose of the present invention is being directed to technological deficiency in the prior art, in a first aspect, providing a kind of separative efficiency
High, low cost the horizontal free water removal device of wing-shaped plate, includes pre-separation pipe (1) and dewatering container (2) two parts, described
Pre-separation pipe (1) is horizontally disposed with, with dewatering container (2) coaxial line, front end is liquid import (5), and reception comes from for water-oil separating
The oil water mixture that a upper process obtains, the end of pre-separation pipe (1) are connected with the front end of dewatering container (2)；The dehydration
The setting wing plate body of high inclination-angle opposite opened (3) in container (2).
The dewatering container (2) is horizontal positioned.
It is arranged at intervals with the N wing plate bodys of group high inclination-angle opposite opened (3) along its length inside the dewatering container (2), greatly
The wing plate body of inclination angle opposite opened (3) has spacing with the inner wall of dewatering container (2) in all directions, and high inclination-angle opposite opened is wing
Plate body also has spacing between (3).
The spacing and high inclination-angle of the front end of the wing plate body of high inclination-angle opposite opened (3), rear end and dewatering container (2)
Dewatering container (2) is divided into N+1 clear mud operating spaces (4) by the spacing between the wing plate body of opposite opened (3), and N is positive integer；
The clear mud operating space (4) is the space that operation is provided for artificial clear mud.
N is 2.
Clear mud operating space (4) bottom of dewatering container (2) end is equipped with water out (7) to the water that will be isolated
Mutually discharge.
Oil at the top of the clear mud operating space (4) of dewatering container (2) end equipped with oil export (6) will isolate
Mutually discharge.
The wing plate body of high inclination-angle opposite opened (3) is upper and lower with a determining deviation by multilayer both wings opposite opened wing-shaped plate (13)
Parallel fold sets, the cross section approximation that each both wings opposite opened wing-shaped plate (13) is made of two unilateral plates
The plank of " V " shape, lower openings, each unilateral side plate is with certain by wing tail folded plate (81), side wing (82) and mud guiding plate (83)
Angle connects and composes the folding face plate there are three plate face, and the angle of side wing and horizontal plane is 25-45 °.
Both wings opposite opened wing-shaped plate (13) described in multilayer is folded to be set as assembly, is upwardly extended positioned at the wing tail folded plate of lower floor
Tail end is more than the bending point of the wing tail folded plate positioned at upper strata, and keeps certain interval with the bending point；Mud guiding plate positioned at upper strata
The tail end extended downwardly is more than the bending point of lower floor's mud guiding plate, and keeps certain interval with the bending point.
Second aspect, the present invention provide a kind of oil field output carried out using the horizontal free water removal device of above-mentioned wing-shaped plate
Liquid free water removal method, includes the following steps：
First, the oil water mixture from process upstream through liquid import (5) into pre-separation pipe (1), rectified formation oil phase,
Water phase laminar flow kenel；
2nd, after the oil phase tentatively separated through step 1 pre-separation pipe (1) enters dewatering container (2), dewatering container is floated to
(2) upper space accelerates sedimentation separation of the water droplet in oil phase under the action of the wing plate body of high inclination-angle opposite opened (3), and
It is discharged afterwards by oil export (6)；
3rd, the water phase tentatively separated through step 1 pre-separation pipe (1) enters the lower part of dewatering container (2), in high inclination-angle pair
Accelerate buoyance lift separation of the oil droplet in water phase under the action of the wing plate body of open type (3), then discharged by water out (7)；
4th, while step 2 and step 3 carry out, the silt particle separated from the oil phase of dewatering container (2) and water phase sinks
It falls the upper face in the wing plate body of high inclination-angle opposite opened (3) and the intermediate channel through the wing plate body of high inclination-angle opposite opened (3) is concentrated
The clear mud operating space bottom of dewatering container (2) is slipped, periodic cleaning goes out dewatering container (2).
Compared with prior art, the beneficial effects of the invention are as follows：
The free water removal device of the present invention for aqueous phase content in ultra-high water-containing crude oil Produced Liquid it is high the characteristics of, with from water
It is separation theory that oil is removed in phase, and water-oil separating can be accelerated and that silt particle can be prevented to silt up is efficient, low cost by developing
Horizontal free water removal device effectively overcomes the separating members such as existing coalescent pack cost height, easily by silt blocking, long-term fortune
The problem of line efficiency is low, repair replacement operation is difficult and costly.
The horizontal free water removal device of wing-shaped plate using the present invention and removal methods, can obtain following effect：
(1) under conditions for the treatment of capacity similary with conventional free water knockout (FWKO), the ternary composite driving of aqueous 90-95% is extra-high
Wet crude Produced Liquid after the processing of the wing-shaped plate of the present invention horizontal free water removal device, fuel-displaced moisture content is no more than 5%,
It is discharged oil content and is no more than 300mg/L, processing capacity and efficiency than 1 times or so of routine free water knockout (FWKO) raising, treatment effect
It is much better than conventional free water knockout (FWKO).
(2) the horizontal free water removal device of wing-shaped plate of the invention is than the cost of the conventional free water knockout (FWKO) of similary specification
More than 20% can be reduced.
(3) the wing plate body in the horizontal free water removal device of wing-shaped plate of the invention is without sediment siltation, since it greatly may be used
Long-term effective use.
(4) the opposite opened wing-shaped plate and in the patent application of Publication No. CN 103752042A and combinations thereof body grease mud
Separating member compares it is found that the effect of the present invention is：
1) the plate face inclination angle of wing-shaped plate is increased 25-45 ° by the present invention by original 10-15 °, increases mud in plate face
The slippage power of sand improves the anti-siltation effect of self-cleaning of plate face, amount retained of the silt particle in plate face is made to level off to 0, thoroughly
It solves the problems, such as wing plate body spacing diminution, circulation to be caused to reduce because silt particle retains.
2) present invention makes wing-shaped plate using 2-3mm compared with steel plate plate, that is, reduces cost, also extend its corrosion failure
Time and service life solve the problems, such as to cause cost higher using stainless steel materials.
3) present invention is using the lower-cost wing plate body that is made compared with steel plate, and is laid in the larger scale of construction larger
Among the free water removal equipment of size, the processing liquid measure of single device is greatly improved, reduces implantation of device quantity, drop
Low single device cost and processed in units amount cost.
Description of the drawings
Fig. 1 show the structure that big bevel board in the horizontal free water removal device of wing-shaped plate of the present invention faces open type wing-shaped plate
Profilograph；
Fig. 2 show in the horizontal free water removal device of wing-shaped plate of the present invention big bevel board and detaches mud in face of open type wing-shaped plate
The fundamental diagram of sand；
Fig. 3 show the structural front view of the horizontal free water removal device of wing-shaped plate of the present invention.
Specific embodiment
The horizontal free water removal device of wing-shaped plate provided by the invention and the free water removal realized using the removing means
Method, designs original intention and operation principle is as follows：
(1) big bevel board faces open type wing-shaped plate high efficiency oil-water separating member
Since the diameter of horizontal free water knockout (FWKO) is commonly used mostly in 3-4m in oil field, sectional area is big, velocity of medium is low, oil
Silt particle in well Produced Liquid easily deposits inside container, all kinds of coalescent packs set inside it none do not silted up by silt particle
It fails afterwards.In order to overcome the problems, such as this, the present invention in big oblique angle opposite opened wing-shaped plate plate face inclination angle between 25-45 °,
As shown in Figure 1, the silt particle for sinking to get off from oil-water media is made to be slid downwards along inclined plate face, do not accumulated in plate face.By
Multiple big oblique angle opposite opened wing-shaped plates stack the wing plate body of composition there are enough plate spacings, and the silt particle to sink for plate face is created
Sliding channel and space avoid silting up, keep its long-term effectiveness, and Fig. 2 shows the accumulation forms that silt particle slides.Wing plate body
It using shallow pond separating mechanism, can effectively accelerate the speed of water-oil separating, change the size of wing plate body and stack spacing, you can change
Shoal the scale of pond separated space, so as to change the efficiency of water-oil separating.
(2) the second-order separation mechanism and overall structure
Whole device is mainly made of grease pre-separation pipe and dewatering container, wherein, pre-separation pipe is used for oil-water two-phase flow
Dynamic form adjust with grease initial gross separation, except dewatering container；High efficiency oil-water is provided in dewatering container and detaches structure
Part --- the wing plate body of high inclination-angle opposite opened, for improving water-oil separating efficiency, to replace conventional coalescent pack.The device has
The characteristics for the treatment of effeciency is high, low cost.
(3) the major diameter horizontal vessel high efficient oil cement separation of big oblique angle opposite opened wing-shaped plate built in
Dewatering container is mainly made of multilayer both wings opposite opened wing-shaped plate, and multilayer both wings opposite opened wing-shaped plate is placed in dehydration
In container, from the defeated next oil-phase medium of pre-separation pipe and aqueous media after the multilayer wing-shaped plate " shallow pond " processing, by oil droplet
Buoyance lift effect, further remove water phase in oil droplet；It is acted on by gravitational settling, further removes the water droplet in oil phase, make
Silt particle in water sinks in the inclined surface of each layer wing-shaped plate, is then slipped to container bottoms.
The major function of dewatering container is：
1) water-oil separating, mud-water separation are carried out to the oily wastewater from pre-separation pipe, ensures that water outlet oil content is qualified
(≤3000mg/L)。
2) deposition dehydrating is carried out to the wet crude from pre-separation pipe, reduces Water in oil rate, ensure fuel-displaced moisture content
Qualified (≤30%).
Below in conjunction with specific embodiment, present disclosure is further illustrated, and the present invention is further elaborated, but
These embodiments limit the invention absolutely not.
The horizontal free water removal device of wing-shaped plate provided by the invention, as shown in figure 3, including being used for the pre- of grease pre-separation
2 two parts of separating pipe 1 and dewatering container.
Pre-separation pipe 1 carries out the rectification of laminar flow kenel to entering oil water mixture therein, tentatively carries out water-oil separating.
Dewatering container 2 carries out water-oil separating to the oil phase from pre-separation pipe, water phase.
Specifically, one end of pre-separation pipe 1 is connected with one end of dewatering container 2, the other end and the liquid import of pre-separation pipe 1
5 connections make the oil water mixture from upstream enter inside the device (using one end of liquid import 5 as front end, far from liquid import 5
One end be end).
High efficiency oil-water separating member --- high inclination-angle opposite opened wing plate body 3 is set in dewatering container 2, for improving grease
Separative efficiency, to replace conventional coalescent pack.
As shown in the b width in Fig. 1, the wing plate body 3 of high inclination-angle opposite opened is with one by multilayer both wings opposite opened wing-shaped plate 13
Upper and lower parallel fold of determining deviation sets.Both wings opposite opened wing-shaped plate 13 is made of two unilateral plates, sees a width in Fig. 1, each
Unilateral plate is sequentially connected at a certain angle by wing tail folded plate 81, side wing 82 and mud guiding plate 83 forms a folding there are three plate face
Panel symmetrically connects two folding face plates at a certain angle, is formed cross section approximation " V " shape but lower openings are without right
The both wings opposite opened wing-shaped plate 13 connect；Side wing 82 and the angle of horizontal plane are 25-45 °.
By multilayer both wings opposite opened wing-shaped plate 13 is folded be set as high inclination-angle opposite opened wing plate body 3 when, positioned at the both wings of lower floor
The length of the wing tail folded plate 81 of opposite opened wing-shaped plate 13 need to be extended to more than at the bending point of the wing tail folded plate 81 on upper strata, and
Certain interval is kept with the bending point；And positioned at upper strata both wings opposite opened wing-shaped plate 13 mud guiding plate 83 then extend downwardly into it is super
It crosses at the bending point of lower floor's mud guiding plate 83, and certain interval is kept with the bending point.The purpose of this design is that work as ultra-high water-containing
When crude oil Produced Liquid flows through high inclination-angle opposite opened wing plate body 3, the smaller oil-phase medium of density can both be made to pass through the upper and lower layer wing
The upward buoyance lift of crack of tail folded plate 81, the water phase that density can also be made larger and silt particle medium pass through upper strata mud guiding plate 83 to flow down
It is dynamic.The wing plate body 3 of high inclination-angle opposite opened can accelerate the drops of water fall down speed in oil phase, the oil droplet buoyance lift speed in water phase, oil phase
With the sinking speed of silt particle in water phase.
The structure of dewatering container 2 is specially：The axis of dewatering container 2 and the axis of pre-separation pipe 1 are same axis, dehydration
Container 2 is horizontal positioned, by media flow direction, the front end of dewatering container 2 and the joining distal ends of pre-separation pipe 1, pre-separation pipe 1
End is the front end of dewatering container 2, and the front end of pre-separation pipe 1 is connected with liquid import 5.Two are internally provided in dewatering container 2
The group wing plate body 3 of high inclination-angle opposite opened, the wing plate body 3 of high inclination-angle opposite opened occupies the major part of container cross section, each
There is spacing with the inner wall of dewatering container 2 on direction, be located at along its length inside dewatering container 2, and dewatering container 2 is divided into
Before, during and after three clear mud operating spaces 4, provide operating space for artificial clear mud.One end of the wing plate body 3 of high inclination-angle opposite opened
At regular intervals, clear mud operating space 4 and rear clear mud operating space 4 before being respectively formed are stayed with the end of dewatering container 2；Two groups
Also at regular intervals, clear mud operating space 4 in formation is stayed between the wing plate body 3 of high inclination-angle opposite opened.I.e. single high inclination-angle is split
At regular intervals, clear mud operating space 4 before formation is stayed in the front end of the wing plate body 3 of formula and the front end of dewatering container 2；It is single to incline greatly
At regular intervals, clear mud operating space 4 after formation is also stayed in the least significant end of the wing plate body 3 of angle opposite opened and the end of dewatering container 2.
The ultra-high water-containing crude oil Produced Liquid of pre-separated 1 pre-separation of pipe is introduced into dehydration with oil-water stratified flow ejector half state to be held
The intermediate position (intermediate position radially) of the clear mud operating space 4 (clear mud operating space before i.e.) of 2 front end of device, then successively
Into the wing plate body 3 of high inclination-angle opposite opened, oil phase and water phase are in the effect of the wing plate body 3 of high inclination-angle opposite opened of dewatering container 2
Lower carry out water-oil separating.Water phase is gathered in the most of space of dewatering container 2, is gone out in the bottom of 2 end of dewatering container equipped with water
Mouthfuls 7, it will treated that oily wastewater draws container through dewatering container 2；2 end top of dewatering container is equipped with oil export 6, will be low
Wet crude draws container.
Based on the horizontal free water removal device of above-mentioned wing-shaped plate, invention further provides a kind of horizontal free waters of wing-shaped plate to take off
Except method, include the following steps：
(1), the oil water mixture from upstream enters pre-separation pipe 1, rectified formation oil phase, water phase point through liquid import 5
Laminar flow kenel；
(2), the oil phase that pre-separated pipe 1 tentatively separates enters in dewatering container 2, and the buoyance lift that drifts about is in dewatering container 2
Then upper space horizontally passes through the wing plate body 3 of high inclination-angle opposite opened, and accelerates under its shallow pond separation effect effect
Drops of water fall down speed in oil phase, and after discharged through oil export 6；
(3), the water phase that pre-separated pipe 1 tentatively separates enters in dewatering container 2, and sinks to the lower part of dewatering container 2
Then space horizontally passes through the wing plate body 3 of two groups of high inclination-angle opposite openeds, and accelerates under its shallow pond separation effect effect
Oil droplet buoyance lift separating rate in water phase, and after discharged through water out 7；
(4), while step (2) and (3) carry out, the silt particle separated from the oil phase of dewatering container 2 and water phase sinks
Upper face in the wing plate body 3 of high inclination-angle opposite opened and the plate face along the wing plate body 3 of high inclination-angle opposite opened are slipped to logical among it
Fig. 2 then by clear 4 bottom of mud operating space of water conservancy diversion to dewatering container 2, is shown in, periodic cleaning goes out dewatering container 2 in road.
It is horizontal to have manufactured and designed the wing-shaped plate that 2 specifications are 4 × 20m of φ for the technical solution determined according to the content of present invention
Free water removal device, and carried out industrial test, achieve following effect：
In Daqing oil field multi-purpose station to experiment of 1 specification for the horizontal free water removal device of wing-shaped plate of 4 × 20m of φ
The result shows that under the conditions of polymer displacement of reservoir oil, ultra-high water-containing Produced Liquid treating capacity is 10565t/d, is containing polymer concentration
261mg/L, demulsifier is not added with, under conditions of the sedimentation time is 29.3min, which can be less than fuel-displaced moisture content average value
1%, water outlet oil content average value reaches 207mg/L hereinafter, being better than the processing index of conventional equipment.Relative to the normal of same size
Material filling type free water knockout (FWKO) is advised to the design maximum treating capacity of poly- flooding produced liquid 10000t/d, the treatment effeciency and energy of the equipment
Power improve 1 times or more (because of the conventional equipment for similary specification, the fuel-displaced moisture content under its maximum throughput 10000t/d
Be 30%, water outlet oil content is 3000mg/L, therefore according to long-term produce reality experience, for treating capacity for 10565t/d and
It is not added with that fuel-displaced moisture content under the operating mode of demulsifier is less than 1%, water outlet oil content is less than the present invention of 207mg/L and dissociates
Water removing means, after demulsifier is added, fuel-displaced moisture content reaches 30%, when water outlet oil content reaches 3000mg/L, processing
Amount will can reach more than 20000t/d), single device cost reduces by 31.6%, and processed in units amount reduces investment outlay 64.4%.
After equipment is run 145 days, open tank inspection finds the wing plate body of high inclination-angle opposite opened without sediment siltation, and has
Sand discharge function is voluntarily slid, it being capable of long-term effective use.
The above is only the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of horizontal free water removal device of wing-shaped plate, which is characterized in that include pre-separation pipe (1) and dewatering container (2)
Two parts, the pre-separation pipe (1) are horizontally disposed with, with dewatering container (2) coaxial line, front end is liquid import for water-oil separating
(5), the oil water mixture obtained from a upper process is received, the end of pre-separation pipe (1) is connected with the front end of dewatering container (2)
It is logical；The setting wing plate body of high inclination-angle opposite opened (3) in the dewatering container (2).
2. the horizontal free water removal device of wing-shaped plate according to claim 1, which is characterized in that dewatering container (2) water
Placing flat.
3. the horizontal free water removal device of wing-shaped plate according to claim 2, which is characterized in that in the dewatering container (2)
Portion is arranged at intervals with the N wing plate bodys of group high inclination-angle opposite opened (3) along its length, and the wing plate body of high inclination-angle opposite opened (3) is each
There is spacing with the inner wall of dewatering container (2) on a direction, also have spacing between the wing plate body of high inclination-angle opposite opened (3).
4. the horizontal free water removal device of wing-shaped plate according to claim 3, which is characterized in that the high inclination-angle opposite opened wing
Spacing between the front end of shape plate body (3), the spacing of rear end and dewatering container (2) and the wing plate body of high inclination-angle opposite opened (3)
Dewatering container (2) is divided into N+1 clear mud operating spaces (4), N is positive integer；It is artificial clear that the clear mud operating space (4), which is,
Mud provides the space of operation.
5. the horizontal free water removal device of wing-shaped plate according to claim 4, which is characterized in that N 2.
6. according to any horizontal free water removal devices of wing-shaped plate of claim 3-5, which is characterized in that the dewatering container
(2) clear mud operating space (4) bottom of end is equipped with water out (7) the water phase isolated to be discharged.
7. according to any horizontal free water removal devices of wing-shaped plate of claim 3-6, which is characterized in that the dewatering container
(2) oil export (6) is equipped at the top of the clear mud operating space (4) of end the oil phase isolated to be discharged.
8. according to any horizontal free water removal devices of wing-shaped plate of claim 1-7, which is characterized in that the high inclination-angle pair
The wing plate body of open type (3) is set by multilayer both wings opposite opened wing-shaped plate (13) with upper and lower parallel fold of a determining deviation, each two
A cross section approximation " V " shape that wing opposite opened wing-shaped plate (13) is all made of two unilateral plates, the plank of lower openings, often
It is a unilateral side plate be by wing tail folded plate (81), side wing (82) and mud guiding plate (83) connect and compose at a certain angle there are three plate face
The angle of folding face plate, side wing and horizontal plane is 25-45 °.
9. the horizontal free water removal device of wing-shaped plate according to claim 8, which is characterized in that both wings opposite opened described in multilayer
Wing-shaped plate (13) is folded to be set as assembly, and the tail end upwardly extended positioned at the wing tail folded plate of lower floor is more than the wing tail folded plate positioned at upper strata
Bending point, and with the bending point keep certain interval；The tail end that mud guiding plate positioned at upper strata extends downwardly leads mud more than lower floor
The bending point of plate, and keep certain interval with the bending point.
10. the oilfield produced fluid free water carried out using any horizontal free water removal devices of wing-shaped plate of claim 1-9
Removal methods include the following steps：
First, the oil water mixture from process upstream through liquid import (5) into pre-separation pipe (1), rectified formation oil phase, water phase
Laminar flow kenel；
2nd, after the oil phase tentatively separated through step 1 pre-separation pipe (1) enters dewatering container (2), dewatering container (2) is floated to
Upper space is accelerated sedimentation separation of the water droplet in oil phase under the action of the wing plate body of high inclination-angle opposite opened (3), is then passed through
Oil export (6) is discharged；
3rd, the water phase tentatively separated through step 1 pre-separation pipe (1) enters the lower part of dewatering container (2), in high inclination-angle opposite opened
Accelerate buoyance lift separation of the oil droplet in water phase under the action of wing plate body (3), then discharged by water out (7)；
4th, while step 2 and step 3 carry out, the silt particle separated from the oil phase of dewatering container (2) and water phase sinks
The upper face of the wing plate body of high inclination-angle opposite opened (3) and the intermediate channel concentration slippage through the wing plate body of high inclination-angle opposite opened (3)
To the clear mud operating space bottom of dewatering container (2), periodic cleaning goes out dewatering container (2).
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| CN2016111068219 | 2016-12-06 | ||
| CN201611106821 | 2016-12-06 |
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| CN201721682047.6U Active CN208394841U (en) | 2016-12-06 | 2017-12-06 | Horizontal free water removing device |
| CN201711279789.9A Pending CN108147500A (en) | 2016-12-06 | 2017-12-06 | Horizontal type free water removing device and removing method |
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| CN208394841U (en) * | 2016-12-06 | 2019-01-18 | 中国石油天然气股份有限公司 | Horizontal free water removing device |
Citations (6)
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| CN2530706Y (en) * | 2002-03-27 | 2003-01-15 | 中国石化胜利油田有限公司规划设计研究院 | Free water separating and removing device |
| CN101766921A (en) * | 2010-03-31 | 2010-07-07 | 大庆油田有限责任公司 | Declining-type oil-water separation device with multilayer wing-shaped plates |
| CN103752047A (en) * | 2013-01-17 | 2014-04-30 | 中国石油天然气股份有限公司 | Compact inclined three-phase separation device and oil-gas-water separation treatment method for oil-produced liquid in oil field |
| CN103752042A (en) * | 2013-01-29 | 2014-04-30 | 中国石油天然气股份有限公司 | Split wing plate and assembly oil-water-mud separation component thereof and oil-water-mud separation method |
| CN104828990A (en) * | 2015-03-11 | 2015-08-12 | 崔斌 | Pipe-in-pie four-phase separator and pre-separation method of oil and water mixed liquor in oil field |
| CN208394841U (en) * | 2016-12-06 | 2019-01-18 | 中国石油天然气股份有限公司 | Horizontal free water removing device |
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2017
- 2017-12-06 CN CN201721682047.6U patent/CN208394841U/en active Active
- 2017-12-06 CN CN201711279789.9A patent/CN108147500A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2530706Y (en) * | 2002-03-27 | 2003-01-15 | 中国石化胜利油田有限公司规划设计研究院 | Free water separating and removing device |
| CN101766921A (en) * | 2010-03-31 | 2010-07-07 | 大庆油田有限责任公司 | Declining-type oil-water separation device with multilayer wing-shaped plates |
| CN103752047A (en) * | 2013-01-17 | 2014-04-30 | 中国石油天然气股份有限公司 | Compact inclined three-phase separation device and oil-gas-water separation treatment method for oil-produced liquid in oil field |
| CN103752042A (en) * | 2013-01-29 | 2014-04-30 | 中国石油天然气股份有限公司 | Split wing plate and assembly oil-water-mud separation component thereof and oil-water-mud separation method |
| CN104828990A (en) * | 2015-03-11 | 2015-08-12 | 崔斌 | Pipe-in-pie four-phase separator and pre-separation method of oil and water mixed liquor in oil field |
| CN208394841U (en) * | 2016-12-06 | 2019-01-18 | 中国石油天然气股份有限公司 | Horizontal free water removing device |
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