CN203079727U - Membrane device for treating oilfield produced water to be applied to reinjection - Google Patents

Membrane device for treating oilfield produced water to be applied to reinjection Download PDF

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Publication number
CN203079727U
CN203079727U CN 201220747858 CN201220747858U CN203079727U CN 203079727 U CN203079727 U CN 203079727U CN 201220747858 CN201220747858 CN 201220747858 CN 201220747858 U CN201220747858 U CN 201220747858U CN 203079727 U CN203079727 U CN 203079727U
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CN
China
Prior art keywords
valve
tank
pipeline
recoil
membrane separation
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 201220747858
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Chinese (zh)
Inventor
杨积志
李海波
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Shanghai Anhorn Environmental Technology Co Ltd
Original Assignee
SHANGHAI ANHORN MECHANICAL EQUIPMENT CO Ltd
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Priority to CN 201220747858 priority Critical patent/CN203079727U/en
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Publication of CN203079727U publication Critical patent/CN203079727U/en
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Abstract

The utility model relates to a membrane for treating oilfield produced water to be applied to reinjection. The membrane device comprises a feed liquid tank, a series of separator main bodies and internal membrane separation elements thereof, a backflushing tank, a washing tank and a pump. The oilfield produced water containing greasy dirt passes through a settling tank and the pump to enter a separating device and is subjected to membrane separation to obtain clear liquid which accords with the reinjection index of oilfield reinjection water and is used for reinjection, and sewage containing greasy dirt at the concentrated liquid side returns to the settling tank. When the permeation flux of a filtering unit module is set to drop to an initial value (80%), and backflushing begins. The whole system is of a fully-enclosed mode, so that water is prevented from being in contact with outside to introduce new pollution, and the quality of a product discharged from the clear liquid side is ensured; the membrane device is resistant to high temperature, acid and alkali, high in flux at the clear liquid side of a ceramic membrane, large in handling capacity, good in separating effect and stable in effluent quality; a ceramic membrane filtering system is simple to operate, short in process flow, high in automation degree, low in cost investment and long in washing period; and the flux recovery rate after washing can reach more than 90 percent.

Description

A kind ofly handle the film device that oil field extracted water is applied to re-injection
Technical field
The utility model relates to a kind of device, relate in particular to a kind of impurity such as irreducible oil in the oil recovery water, suspended solids of removing, for the disposing polluted water in oil industry provide one practical economically, satisfactory processing oil field extracted water is applied to the film device of re-injection on the technology.
Background technology
The most of Oilfield using waterflooding of China mode is exploited at present, along with the oil field enters late high water content period, the oil field produced water yield of part increases substantially, and the water constituent complexity of extraction, except that containing crude substance such as suspension emulsified oil droplet, solid particulate, solubility salt, also contain various medicaments such as chemical additive, lubricant, cause recovered water emulsification serious, Stability Analysis of Structures and difficult the processing.
But for low permeability layer and ultra-low permeability oil layer, A1 level water quality requirement suspended substance median particle size≤1 μ m, suspended substance≤1mg/L, crude oil≤5mg/L, average corrosion rate<0.076mm/a, the recovered water conventional treatment method of Oilfield using (as gravity settling, eddy flow centrifugation, air supporting and fine filtering etc.) all difficulty reach this requirement.
The utility model content
At the problems referred to above, main purpose of the present utility model is to provide a kind of impurity such as irreducible oil in the oil recovery water, suspended solids of removing, for the disposing polluted water in oil industry provide one practical economically, satisfactory processing oil field extracted water is applied to the film device and the treatment process of re-injection on the technology.
The utility model solves above-mentioned technical problem by following technical proposals: a kind ofly handle the film device that oil field extracted water is applied to re-injection, described device comprises material liquid tank, recoil jar, membrane separation apparatus and purge tank, the material liquid tank liquidometer is installed on the described material liquid tank, described material liquid tank top is equipped with feed-pipe, the bottom is equipped with discharge nozzle, the material liquid tank valve is installed on the discharge nozzle, and the discharge nozzle that the material liquid tank valve is installed is divided into two arms that purge tank valve and material liquid tank and purge tank wash water valve are installed respectively;
On the described recoil jar a recoil jar liquidometer is installed, the top of described recoil jar is equipped with recoil pressure tank table and the pipeline of source of the gas valve and vent valve is installed respectively;
Described membrane separation apparatus top is equipped with the feed-pipe tensimeter, described membrane separation apparatus top is connected with material liquid tank by pipeline, on the pipeline that connects, feed-pipe tensimeter, feed-pipe under meter, impeller pump circulation tube valve and feed-pipe valve are installed successively, on the pipeline between impeller pump circulation tube valve and the purge tank wash water valve impeller pump are installed also from described membrane separation apparatus to material liquid tank;
The purge tank liquidometer is installed on the described purge tank, and the top of described purge tank is provided with the two-way arm that purge tank dope tube valve and purge tank clear liquid tube valve have been installed;
Also be connected with the pipeline that clear liquid hook gauge, clear liquid flowmeter for pipe and clear liquid tube valve are installed successively between described membrane separation apparatus and the material liquid tank, divide the branch road that a connection recoil jar is arranged on the pipeline between clear liquid flowmeter for pipe and the clear liquid tube valve, on the branch road of described connection recoil jar a recoil jar feed valve is installed also, connect and to tell an arm on the pipeline between clear liquid hook gauge and the clear liquid flowmeter for pipe recoil feed valve and a recoil jar wash water valve are installed, tell an arm on the pipeline between recoil feed valve and the recoil jar wash water valve and be connected with the bottom of recoil jar;
The bottom of described membrane separation apparatus has pipeline to be connected with material liquid tank, and dope hook gauge, dope pipe thermometer and dope tube valve also are installed on this pipeline successively;
The membrane separation apparatus wash water valve also is installed on the pipeline of the bottom of described membrane separation apparatus.
In specific embodiment of the utility model, the separative element in the described membrane separation apparatus is the ceramic pipe type membrane module, and precision is 0.01 ~ 1 μ m.
Positive progressive effect of the present utility model is: the utility model compares with the film device that existing similar processing oil field extracted water is applied to re-injection, total system of the present utility model is a totally enclosed, avoid water to introduce new pollution with extraneous the contact, clear liquid side discharging product quality is guaranteed; High temperature resistant, acid and alkali-resistance, ceramic membrane clear liquid lateral flux height, treatment capacity is big, good separating effect, stable effluent quality; The ceramic membrane filter system operation is simple, and technical process is short, the level of automation height, and labor savings, investment reduces cost; Cleaning interval is long, and cleaning back flux recovery rate can reach more than 90%.
Description of drawings
Fig. 1 is the structure of the utility model device and the synoptic diagram of technical process.
Embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.
Fig. 1 is the structure of the utility model device and the synoptic diagram of technical process, as shown in Figure 1: the utility model comprises material liquid tank 1, recoil jar 2, membrane separation apparatus 3 and purge tank 4, material liquid tank 1 top is equipped with feed-pipe, the bottom is equipped with discharge nozzle, material liquid tank bleeder valve valve 16 is installed on the discharge nozzle, discharge nozzle is divided into two arms through material liquid tank bleeder valve 16, and one is material liquid tank exhaust-valve 25, and another links to each other with impeller pump 5;
A recoil jar liquidometer 7 is installed on the recoil jar 2, the top of recoil jar 2 is equipped with recoil pressure tank table 15, source of the gas inlet pipe and gas exhaust duct, be separately installed with intake valve 26 and vent valve 27 on it, the bottom of recoil jar 2 is equipped with a recoil jar discharge nozzle, bifurcation on it, one is equipped with recoil jar bleeder valve 28, and another is equipped with recoil jar exhaust-valve 29;
Membrane separation apparatus 3 tops are connected with material liquid tank 1 by pipeline, on the pipeline that connects, 1 feed-pipe tensimeter 11, feed-pipe under meter 9, impeller pump circulation tube valve 17 and feed-pipe valve 18 are installed successively, on the pipeline between impeller pump circulation tube valve 17 and the purge tank wash water valve 25 impeller pump 5 are installed also from membrane separation apparatus 3 to material liquid tank;
Purge tank liquidometer 8 is installed on the purge tank 4, and the top of purge tank 4 is provided with the two-way arm that purge tank dope tube valve 23 and purge tank clear liquid tube valve 24 have been installed, and the bottom of purge tank 4 is equipped with the purge tank discharge nozzle, and purge tank bleeder valve 22 is arranged on it;
Also be connected with the pipeline that clear liquid hook gauge 14, clear liquid flowmeter for pipe 10 and clear liquid tube valve 21 are installed successively between membrane separation apparatus 3 cylindrical shell sidepieces and the material liquid tank 1, branch has the branch road of a connection recoil jar 2 on the pipeline between clear liquid flowmeter for pipe 10 and the clear liquid tube valve 21, on the branch road of described connection recoil jar 2 jar feed valve 30 that recoils is installed also;
The bottom of membrane separation apparatus 3 has pipeline to be connected with material liquid tank 1, and dope hook gauge 13, dope pipe thermometer 12 and dope tube valve 20 also are installed on this pipeline successively;
Membrane separation apparatus wash water valve 19 also is installed on the pipeline of the bottom of membrane separation apparatus 3.
Be specific embodiment below:
Example 1: oil field extracted water wastewater treatment re-injection
Oil field extracted water is total suspended matter content 20mg/L after subsider is handled, total oil-contg 18mg/L, and median particle diameter 7 μ m enter into film separating system, and after separating, clear liquid injects the stratum reinjection into reservoir by water injection well, and the oil-containing dope turns back to subsider.
Material enters in the material liquid tank 1, opens material liquid tank bleeder valve 16, and feed liquid is fallen 0.2MPa through impeller pump 5 at pressure, enter into membrane separation apparatus 3 under the crossflow velocity 3m/s condition, clear liquid enters into material liquid tank 1 and recoil jar 2, dope returns flow container 1 by a clear liquid tube valve 21 and a recoil jar feed valve 30
Backwash process: when flux drops to original flux 80%, use the clear liquid of 0.5MPa to recoil through recoil feed valve 28, the back flushing pressure tank carries out the supply clear liquid by the source of the gas pressurize also by 7 controls of recoil jar liquidometer, and by a recoil jar feed valve 30;
Cleaning process: the back flux that repeatedly recoils drops to 60% o'clock of original flux, the use scavenging solution cleans, close material liquid tank valve 16, impeller pump circulation tube valve 17, dope tube valve 20 and clear liquid tube valve 21, opening purge tank valve 22, purge tank dope tube valve 23 and purge tank clear liquid tube valve 24 cleans, at operation pressure reduction 0.2MPa, clean under the scavenging solution crossflow velocity 5m/s;
When system is out of service, open membrane separation apparatus wash water valve 19, material liquid tank and purge tank wash water valve 25, recoil jar wash water valve 29 drains material in the system.
In specific implementation process of the present utility model, set the operation pressure reduction 0.05 ~ 0.9MPa of filtering unit, surpass operation pressure reduction and begin recoil or cleaning, the crossflow velocity of setting filtering unit is 0.5 ~ 6m/s, the crossflow velocity during cleaning is 3 ~ 8m/s; After oil field extracted water passed through micro-filtration or ultrafiltration membrane treatment, oleaginousness was less than 5mg/L in the water outlet, and suspension content is less than 1mg/L, and the suspended substance median particle size meets low permeability layer and ultra-low permeability oil layer A less than 1 μ m 1The level water quality requirement.Separative element in the membrane separation apparatus 3 is the ceramic pipe type membrane module, and precision is 0.01 ~ 1 μ m.
Micro-filtration that the utility model is taked or ultrafiltration ceramic membrane cross flow filter, stable effluent quality, water outlet is effective, meet SY/T5329-1994 oil field reinjection water index, ceramic membrane filter flux height, occupation area of equipment is little, and one-time investment is few, permeate flux of ceramic membrane recovery rate height after the cleaning helps the operation of equipment long-term stability.
Total system of the present utility model is a totally enclosed, avoids water to introduce new pollution with extraneous the contact, and clear liquid side discharging product quality is guaranteed; High temperature resistant, acid and alkali-resistance, ceramic membrane clear liquid lateral flux height, treatment capacity is big, good separating effect, stable effluent quality; The ceramic membrane filter system operation is simple, and technical process is short, the level of automation height, and labor savings, investment reduces cost; Cleaning interval is long, and cleaning back flux recovery rate can reach more than 90%.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification sheets just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (2)

1. handle the film device that oil field extracted water is applied to re-injection for one kind, it is characterized in that: described device comprises material liquid tank, recoil jar, membrane separation apparatus and purge tank, the material liquid tank liquidometer is installed on the described material liquid tank, described material liquid tank top is equipped with feed-pipe, the bottom is equipped with discharge nozzle, the material liquid tank valve is installed on the discharge nozzle, and the discharge nozzle that the material liquid tank valve is installed is divided into two arms that purge tank valve and material liquid tank and purge tank wash water valve are installed respectively;
On the described recoil jar a recoil jar liquidometer is installed, the top of described recoil jar is equipped with recoil pressure tank table and the pipeline of source of the gas valve and vent valve is installed respectively;
Described membrane separation apparatus top is equipped with the feed-pipe tensimeter, described membrane separation apparatus top is connected with material liquid tank by pipeline, on the pipeline that connects, feed-pipe tensimeter, feed-pipe under meter, impeller pump circulation tube valve and feed-pipe valve are installed successively, on the pipeline between impeller pump circulation tube valve and the purge tank wash water valve impeller pump are installed also from described membrane separation apparatus to material liquid tank;
The purge tank liquidometer is installed on the described purge tank, and the top of described purge tank is provided with the two-way arm that purge tank dope tube valve and purge tank clear liquid tube valve have been installed;
Also be connected with the pipeline that clear liquid hook gauge, clear liquid flowmeter for pipe and clear liquid tube valve are installed successively between described membrane separation apparatus and the material liquid tank, divide the branch road that a connection recoil jar is arranged on the pipeline between clear liquid flowmeter for pipe and the clear liquid tube valve, on the branch road of described connection recoil jar a recoil jar feed valve is installed also, connect and to tell an arm on the pipeline between clear liquid hook gauge and the clear liquid flowmeter for pipe recoil feed valve and a recoil jar wash water valve are installed, tell an arm on the pipeline between recoil feed valve and the recoil jar wash water valve and be connected with the bottom of recoil jar;
The bottom of described membrane separation apparatus has pipeline to be connected with material liquid tank, and dope hook gauge, dope pipe thermometer and dope tube valve also are installed on this pipeline successively;
The membrane separation apparatus wash water valve also is installed on the pipeline of the bottom of described membrane separation apparatus.
2. processing oil field extracted water according to claim 1 is applied to the film device of re-injection, it is characterized in that: the separative element in the described membrane separation apparatus is the ceramic pipe type membrane module, and precision is 0.01 ~ 1 μ m.
CN 201220747858 2012-12-29 2012-12-29 Membrane device for treating oilfield produced water to be applied to reinjection Expired - Lifetime CN203079727U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Publication Number Publication Date
CN203079727U true CN203079727U (en) 2013-07-24

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103030193A (en) * 2012-12-29 2013-04-10 上海安赐机械设备有限公司 Membrane device for treating oilfield produced water for reinjection and treating method
CN109261658A (en) * 2018-09-26 2019-01-25 山东泰丰清洗科技有限公司 A kind of highly effective energy-conserving environmental-protecting type grease cleaning device and cleaning process
CN111559777A (en) * 2020-05-29 2020-08-21 秦皇岛天大环保研究院有限公司 Low-pressure high-flux deep treatment oilfield produced water system and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103030193A (en) * 2012-12-29 2013-04-10 上海安赐机械设备有限公司 Membrane device for treating oilfield produced water for reinjection and treating method
CN109261658A (en) * 2018-09-26 2019-01-25 山东泰丰清洗科技有限公司 A kind of highly effective energy-conserving environmental-protecting type grease cleaning device and cleaning process
CN111559777A (en) * 2020-05-29 2020-08-21 秦皇岛天大环保研究院有限公司 Low-pressure high-flux deep treatment oilfield produced water system and method

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GR01 Patent grant
C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: 201201 Shanghai, Pudong New Area Jin Tang Road, No. 2, block B, 145

Patentee after: SHANGHAI ANHORN ENVIRONMENTAL TECHNOLOGY CO., LTD.

Address before: 201201 Shanghai, Pudong New Area Jin Tang Road, No. 2, block B, 145

Patentee before: Shanghai Anhorn Mechanical Equipment Co., Ltd.