CN204958613U - Oil field well workover liquid water disposal system - Google Patents
Oil field well workover liquid water disposal system Download PDFInfo
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- CN204958613U CN204958613U CN201520731232.4U CN201520731232U CN204958613U CN 204958613 U CN204958613 U CN 204958613U CN 201520731232 U CN201520731232 U CN 201520731232U CN 204958613 U CN204958613 U CN 204958613U
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- buffer pool
- liquid water
- water disposal
- coagulation reactor
- ozone
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- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model belongs to the liquid water disposal field relates to an oil field well workover liquid water disposal system. Include ozone oxidation device, coagulation reactor, air supporting device in proper order, filter buffer pool and filter, the ozone oxidation device with connect through the elevator pump between the coagulation reactor, pass through pipeline connection between coagulation reactor and the air supporting device, pass through pipeline connection between air supporting device and the filtration buffer pool, filter and to be connected through the elevator pump between buffer pool and the filter. The utility model discloses simplified oil field well workover liquid water disposal technology, reduced treatment cost, improved oil field well workover liquid water disposal efficiency, reached the purpose of high efficiency, economy, environmental protection.
Description
Technical field
The utility model belongs to field of waste liquid treatment, relates to a kind of oil well liquid waste treatment system.
Background technology
At present, coagulation and filtering technique are conventional disposing polluted water in oil technology, are to remove the requisite link of suspended substance, colloid and fine particle in water.Coagulation-settling process is by adding coagulating agent and flocculation agent in pending water, and mix completely with pending water under agitation, enter coagulation reactor subsequently, pollutent generation physical-chemical reaction in medicament and pending water, generate larger-size flco, most flcos can be separated with water and remove in ensuing slurry tank or air-floating apparatus.
Oil well waste liquid composition is complicated, mainly acidizing waste fluid, kill-job waste liquid and the mixed waste liquors such as waste liquid of cementing the well, containing complicated chemical agent, general in acid, pH value is between 4.0 ~ 6.4, and water quality is unstable, its maximum feature is that high molecular polymer, petroleum-type, suspended substance and ferrous iron equal size are high and fluctuation is large, change irregular, ferrous iron content fluctuates between 30 ~ 70mg/L, and sulfide content fluctuates between 1 ~ 10mg/L.Well workover waste liquid water-borne glue body is particle stabilized, and de-steady difficulty, causes water conditioning difficulty large.
Generally speaking, the simple treatment effect of coagulation-settling process to water pollutant is not sufficient to reach target water quality, need be aided with pre-treatment and filter just can complete.
Utility model content
The features such as complicated for oil well waste liquid composition, ferrous iron content is high, and colloidal solid is stable, the utility model provides a kind of oil well liquid waste treatment system.
Described technical scheme is as follows:
A kind of oil well liquid waste treatment system, comprise ozone-oxidizing device, coagulation reactor, air-floating apparatus, filtration Buffer Pool and strainer successively, be connected by lift pump between described ozone-oxidizing device with described coagulation reactor, described coagulation reactor is connected by pipeline with between air-floating apparatus, be connected by pipeline between described air-floating apparatus with filtration Buffer Pool, described filtration Buffer Pool is connected by lift pump with between strainer.
First oil well waste liquid enters described ozone-oxidizing device and carries out oxide treatment.Described ozone-oxidizing device adjusts the liquid outlet of storage tank to be communicated with by feeding line and waste liquid, and the feeding line of described ozone-oxidizing device has H
2o
2(oxygenant) adds interface, works as severe water pollution, described ozone-oxidizing device effluent quality can not up to standard time, H can be added at any time
2o
2(oxygenant), carries out dark oxide treatment, guarantees that described ozone-oxidizing device stable effluent quality is up to standard.
Described air-floating apparatus water outlet flows directly into filtration Buffer Pool by self potential difference, the in-built sand that rockfills of described filtration Buffer Pool, can small suspended particle effectively in Separation of Water.
Described lift pump is acidproof, alkaline-resisting, corrosion-resistant, and electric installation is explosion-proof.
The beneficial effect that the utility model brings is:
(1) the utility model is passed through, oil well waste liquid is after ozone Oxidation Treatment, stable colloidal solid and macromolecule organic matter are oxidized to tractable lower-molecular substance, in ensuing coagulating, reduce the consumption of coagulating agent and flocculation agent, enable the water after process meet outer defeated requirement; Simplify oil well process for treating waste liquor, reduce processing cost, improve oil well liquid waste disposal efficiency, reach the object of efficient, economy, environmental protection.
(2) for the original sewage treatment system of oilfield in scene, only need add the processing requirements that ozone-oxidizing device just can meet oil well waste liquid before coagulation reactor, can running cost be saved.
Accompanying drawing explanation
Fig. 1 is oil well liquid waste treatment system schema provided by the utility model.
In figure: medicine A-pH adjusting agent; Medicine B-H
2o
2(oxygenant); Medicine C-coagulating agent; Medicine D-flocculation agent; 1,2-lift pump.
Embodiment
For making technical solutions of the utility model and advantage clearly, below in conjunction with accompanying drawing, the utility model is described in further detail.
As Fig. 1, the utility model provides a kind of oil well liquid waste treatment system, is made up of major portions such as ozone-oxidizing device, coagulation reactor, air-floating apparatus, filtration Buffer Pool and strainers; Waste liquid, first in the oxidized pre-treatment of ozone-oxidizing device, then enters coagulation reactor through lift pump 1 and carries out coagulating, then enters air-floating apparatus and carry out sedimentation, and in water, flco and crude oil are gathered in fluid surface and are separated with water; Air-floating apparatus water outlet enters through lift pump 2 pressurization the strainer being filled with quartz sand, removes tiny particle in water thing, enables product water meet oilfield sewage reuse standard.
Use specific works process of the present utility model as described below:
First oxytropism waste liquid adds appropriate pH adjusting agent, makes pH=7 ~ 8; According to waste liquid water quality characteristic, or when coagulating can not well occur in ozone-oxidizing device water outlet, need, before waste liquid enters ozone-oxidizing device, to add H
2o
2(oxygenant) coordinates ozone to carry out deep oxidation process; Ozone-oxidizing device water outlet subsequently enters coagulation reactor by lift pump 1 pressurization; Coagulation reactor water outlet enters air-floating apparatus again; Air-floating apparatus water outlet directly enters filtration Buffer Pool; The water filtered in Buffer Pool enters strainer by lift pump 2 pressurization, and remove tiny particle in water thing to reach the requirement again utilized, strainer water outlet is carried out outer defeated.
For certain wellblock, oil field well workover liquid waste disposal, about there is 1500m every day
3well workover waste liquid needs to reclaim.Well workover waste liquid in sewage lagoon is pumped into 2000m
3adjust storage tank, the pH adjusting agent adjusting storage tank inlet line to add 0.1%, makes the waste liquid in tune storage tank be weakly alkaline; According to carrying out liquid water quality situation, optionally add H at tune storage-tank effluent line
2o
2(oxygenant), improves the oxidation efficiency of ozone-oxidizing device; Adjustment ozone-oxidizing device operating parameter, make ozone dosage control at 15 ~ 20mg/L, duration of contact is 10 ~ 20min; Add 250mg/L coagulating agent to coagulation reactor, stir 3 minutes, after there is small flco in water, add the flocculation agent PAC of 10mg/L, low rate mixing 2 minutes; Coagulation reactor water outlet directly enters air-floating apparatus, and the scum silica frost that air-floating apparatus produces enters sludge treatment system, and air-floating apparatus produces water and enters filtration Buffer Pool; Filter Buffer Pool water and enter strainer, the water suspension ss≤10mg/L after filtration, petroleum-type≤10mg/L by lift pump 2 pressurization, can be used to recycling.
This wellblock utilizes the utility model process well workover waste liquid, adds ozone-oxidizing device before the coagulation reactor only in original sewage treatment system of oilfield, and all the other disposing polluted water in oil facilities all do not change.
Claims (4)
1. an oil well liquid waste treatment system, comprise ozone-oxidizing device, coagulation reactor, air-floating apparatus, filtration Buffer Pool and strainer successively, be connected by lift pump between described ozone-oxidizing device with described coagulation reactor, described coagulation reactor is connected by pipeline with between air-floating apparatus, be connected by pipeline between described air-floating apparatus with filtration Buffer Pool, described filtration Buffer Pool is connected by lift pump with between strainer.
2. treatment system according to claim 1, is characterized in that, described ozone-oxidizing device adjusts the liquid outlet of storage tank to be communicated with by feeding line and waste liquid, and the feeding line of described ozone-oxidizing device has H
2o
2add interface.
3. treatment system according to claim 1, is characterized in that, the in-built sand that rockfills of described filtration Buffer Pool.
4. treatment system according to claim 1, is characterized in that, described lift pump is acidproof, alkaline-resisting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520731232.4U CN204958613U (en) | 2015-09-21 | 2015-09-21 | Oil field well workover liquid water disposal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520731232.4U CN204958613U (en) | 2015-09-21 | 2015-09-21 | Oil field well workover liquid water disposal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204958613U true CN204958613U (en) | 2016-01-13 |
Family
ID=55053693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520731232.4U Active CN204958613U (en) | 2015-09-21 | 2015-09-21 | Oil field well workover liquid water disposal system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204958613U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106927558A (en) * | 2017-05-09 | 2017-07-07 | 山东省城市供排水水质监测中心 | The multiphase flow air-floating apparatus and processing method of a kind of ozone Multi-class propagation |
| CN110902875A (en) * | 2019-11-19 | 2020-03-24 | 西安威尔电子有限责任公司 | Oil-gas field produced water treatment system and method based on ozone air floatation device |
-
2015
- 2015-09-21 CN CN201520731232.4U patent/CN204958613U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106927558A (en) * | 2017-05-09 | 2017-07-07 | 山东省城市供排水水质监测中心 | The multiphase flow air-floating apparatus and processing method of a kind of ozone Multi-class propagation |
| CN110902875A (en) * | 2019-11-19 | 2020-03-24 | 西安威尔电子有限责任公司 | Oil-gas field produced water treatment system and method based on ozone air floatation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Oil field well workover liquid water disposal system Effective date of registration: 20181108 Granted publication date: 20160113 Pledgee: Bank of Kunlun Limited by Share Ltd. Karamay branch Pledgor: KARAMAY SANDA NEW TECHNOLOGY Co.,Ltd. Registration number: 2018650000005 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230802 Granted publication date: 20160113 Pledgee: Bank of Kunlun Limited by Share Ltd. Karamay branch Pledgor: KARAMAY SANDA NEW TECHNOLOGY Co.,Ltd. Registration number: 2018650000005 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |