CN205740896U - A kind of retracting device of the CO2 switching mode solvent processed for oil-based drill cuttings - Google Patents
A kind of retracting device of the CO2 switching mode solvent processed for oil-based drill cuttings Download PDFInfo
- Publication number
- CN205740896U CN205740896U CN201620427800.6U CN201620427800U CN205740896U CN 205740896 U CN205740896 U CN 205740896U CN 201620427800 U CN201620427800 U CN 201620427800U CN 205740896 U CN205740896 U CN 205740896U
- Authority
- CN
- China
- Prior art keywords
- agitator
- switching mode
- oil
- drill cuttings
- pipeline
- Prior art date
- 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 - Fee Related
Links
Landscapes
- Extraction Or Liquid Replacement (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Centrifugal Separators (AREA)
Abstract
The utility model discloses a kind of CO processed for oil-based drill cuttings2The retracting device of switching mode solvent, it includes agitating device and centrifuge, the discharging opening of agitating device is connected by pipeline with the inlet of centrifuge, trapped line pressure valve and screw pump are set on pipeline, described agitating device includes agitator, arranging shaft in agitator, agitator top arranges dosing mouth, and agitator arranges charging aperture.This utility model device can the most quickly reclaim the CO for processing oil-based drill cuttings2Switching mode solvent, saves recovery time, its simple in construction, it is not necessary to as existing CO2Switching mode solvent recovery unit needs aerating, heat treated like that, lower to equipment requirements, and therefore its equipment manufacturing cost and management cost are the lowest, and it is reliable convenient to use.
Description
Technical field
This utility model relates to the retracting device of a kind of solvent, is specifically related to a kind of CO processed for oil-based drill cuttings2The retracting device of switching mode solvent, belongs to petrochemical industry height oil-containing hazardous waste processing technology field.
Background technology
Along with continuing to increase of the whole world unconventional energy resource such as shale gas, tight gas exploitation dynamics, oil base drilling fluid technology has become as one of key technology of shale gas horizontal drilling.But, Exploration of Oil And Gas, exploitation drilling process can produce the accumulation of oil-based drill cuttings.Contain the pollutant such as petroleum hydrocarbon, heavy metal and Organic substance because of oil-based drill cuttings, be put into National Hazard garbage (National Hazard refuse register, HW08).
Just the most directly discharge if oil-based drill cuttings is the most treated, it will periphery ecological environment is caused serious harm: contained Organic substance will polluted surface water and groundwater resources, be mainly reflected in water-quality CODCrThe rising of value, the rising of colourity；Destroying soil, unfavorable to plant growing, serious caused soil cannot return cultivated；The poisonous and harmful substances such as heavy metal are detained soil, affect the growth of plant and the breeding of microorganism, enter human body by the effect of food chain, are detrimental to health.
Environmental conservation is always the heavier problem regarded of the mankind, be also country do one's utmost call the problem merited attention, therefore solve oil-based drill cuttings pollute environment problem extremely the most urgent.At present for the process of oil-based drill cuttings, the most commonly used method has burning method, down-hole re-injection method, buries method, solidification method, heat treating process, solvent extraction, centrifugal separation etc..
CO2Switching mode solvent refers to being passed through in system and discharge CO2Time, solvent physicochemical property (such as polarity, viscosity, dissolubility etc.) can a kind of solvent of phase co-conversion, it can realize polarity and water miscible the most reversible change in a mild condition, owing to this kind solvent has the characteristic of intelligent switch, without temperature, pressure are had too high requirement, low for equipment requirements, flow process and easy and simple to handle, on the process of oil-based drill cuttings is applied and promoted, there is well application and promotion potential.
CO2Switching mode solvent for the processing method of oil-based drill cuttings is: by the CO of equivalent2About switching mode solvent and oil-based drill cuttings mixing stirring at normal temperature 30min, CO2Switching mode solvent fully reacts with oil-based drill cuttings, and from oil-based drill cuttings, separation and Extraction goes out mineral waste oils, is then centrifuged for isolating residue and mixing oils extracting solution, adds gauge water, logical CO in extracting solution2, at CO2Stimulation induction under, the CO in extracting solution2Switching mode solvent starts progressively to forward in aqueous phase, and after conversion, upper oil phase is only left the mineral waste oils in drilling cuttings, the most separable oil phase that reclaims out, and residue aqueous phase is being passed through N2Or air discharges CO2After can realize CO2The recovery of switching mode solvent.But during solvent separation and recovery, the effect protected to water-borne glue body of oil-based drill cuttings additive such as emulsifying agent, fluid loss additive, if being simply passed through N2Or the physical method such as air, heating is difficult to realize fast and effectively the separation of solvent.
Utility model content
In view of this, the purpose of this utility model is for above-mentioned the deficiencies in the prior art, it is provided that a kind of CO that can the most quickly reclaim for processing oil-based drill cuttings2The device of switching mode solvent, saves the solvent recovery time.
For solving above technical problem, the technical solution adopted in the utility model provides a kind of CO processed for oil-based drill cuttings2The retracting device of switching mode solvent, it includes agitating device and centrifuge, the discharging opening of agitating device is connected by pipeline with the inlet of centrifuge, trapped line pressure valve and screw pump are set on pipeline, described agitating device includes agitator, arranging shaft in agitator, agitator top arranges dosing mouth, and agitator arranges charging aperture.
During use, solvent to be recycled containing CO2The aqueous phase of switching mode solvent enters agitator from charging aperture, adds solid CaO or NaOH from dosing mouth, utilizes shaft mixing and stirring, react complete CO2After switching mode solvent is isolated from aqueous phase, open in the solution in agitator is pumped into centrifuge by screw pump by trapped line pressure valve and complete to separate, reclaim and obtain CO2Switching mode solvent.
Above-mentioned containing CO2The aqueous phase of switching mode solvent refers to use CO2The aqueous phase of isolated after switching mode solvent process oil-based drill cuttings.Particularly as follows: by etc. the oil-based drill cuttings of quality and CO2Switching mode solvent mixes, and stirs 30min under room temperature, and centrifugation goes out residue and mixes oils extracting solution, in mass ratio extracting solution: water=1: 2 add quantitative water in extracting solution, are passed through CO under high velocity agitation2, ventilate after 1h under 1L/min flux, isolated mineral oils and containing CO2The aqueous phase of switching mode solvent.
Further, described centrifuge is selected from horizontal spiral centrifuge and centrifugal extractor.Horizontal spiral centrifuge is mainly used in liquid-solid separation, and centrifugal extractor is mainly used in the separation of liquid liquid.
Reclaim CO2Medicament used by switching mode solvent is NaOH and CaO, and the most described dosing mouth is NaOH dosing mouth and CaO dosing mouth.
Further, described agitator top cover plate for sealing, it is to avoid the leakage of liquid during shaft stirring.
CO2The technical scheme of the recovery method optimum of switching mode solvent is first to add NaOH in aqueous phase, after separating and recovering out partial solvent, CaO is added again in remaining aqueous phase, separate and recover out remaining solvent, during owing to adding CaO, generate hydrated ion with water, can effectively destroy water-borne glue body double electrical layers, so that elimination of colloid stability, concurrently form substantial amounts of CaCO3Precipitate, adsorbs float in a large amount of water (including a small amount of solvent), forms floccule, therefore add after CaO processes can not only recycling design, the water quality of remaining waste water also can be made well to be improved, can be as the pretreatment of organic amine waste water.Therefore this utility model provides the retracting device mated with optimum recovery method, it arranges two discharging openings bottom agitator, one discharging opening is connected by pipeline with the inlet of centrifugal extractor, another discharging opening is connected by pipeline with the inlet of horizontal spiral centrifuge, and the aqueous phase outlet of described centrifugal extractor is connected on the charging aperture of agitator by pipeline.The aqueous phase so first reacted with NaOH is reclaimed by centrifugal extractor after obtaining partial solvent, remaining aqueous phase returns again agitator and reacts with CaO, solid phase therein (floccule) is separated by reacted solution through horizontal spiral centrifuge, residue is i.e. the solvent containing a small amount of aqueous phase, can obtain solvent by placing the recovery of natural layering Gravity Separation.
Further, the pipeline that the inlet of described centrifugal extractor is connected with agitator discharging opening is provided with trapped line pressure valve and screw pump；It is provided with trapped line pressure valve and screw pump on the pipeline that the inlet of described horizontal spiral centrifuge is connected with agitator discharging opening；It is provided with trapped line pressure valve and screw pump, to control controlling flow direction on the pipeline that the aqueous phase outlet of described centrifugal extractor is connected with the charging aperture of agitator.
Compared with prior art, this utility model device can the most quickly reclaim the CO for processing oil-based drill cuttings2Switching mode solvent, saves recovery time, its simple in construction, it is not necessary to as existing CO2Switching mode solvent recovery unit needs aerating, heat treated like that, lower to equipment requirements, and therefore its equipment manufacturing cost and management cost are the lowest, and it is reliable convenient to use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of this utility model preferred embodiment.
Description of reference numerals:
1, agitator；11, charging aperture；12,13: discharging opening；14, dosing mouth；15, shaft；16, cover plate；2, horizontal spiral centrifuge；3 centrifugal extractors；21,31: inlet；35, aqueous phase outlet；4,23,33,37: trapped line pressure valve；5,24,34,38: screw pump；6,22,32,36: pipeline.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the technical solution of the utility model, the utility model is described in further detail with detailed description of the invention below in conjunction with the accompanying drawings.
Seeing Fig. 1, this utility model provides a kind of CO processed for oil-based drill cuttings2The retracting device of switching mode solvent, it includes agitating device and centrifuge, the discharging opening of agitating device is connected by pipeline 6 with the inlet of centrifuge, trapped line pressure valve 4 and screw pump 5 are set on pipeline 6, described agitating device includes agitator 1, arranging shaft 15 in agitator 1, agitator 1 top arranges dosing mouth 14, agitator arranges charging aperture 11.
During use, solvent to be recycled containing CO2The aqueous phase of switching mode solvent enters agitator 1 from charging aperture 11, adds solid CaO or NaOH from dosing mouth 14, utilizes shaft 15 mixing and stirring, reacts complete CO2After switching mode solvent is isolated from aqueous phase, open in the solution in agitator 1 is pumped into centrifuge by screw pump 5 by trapped line pressure valve 4 and complete to separate, reclaim and obtain CO2Switching mode solvent.
Seeing Fig. 2, this utility model additionally provides a kind of CO processed for oil-based drill cuttings that structure is more excellent2The retracting device of switching mode solvent, it includes agitating device and centrifuge, and centrifuge includes horizontal spiral centrifuge 2 and centrifugal extractor 3, and horizontal spiral centrifuge 2 is mainly used in liquid-solid separation, and centrifugal extractor 3 is mainly used in the separation of liquid liquid.Described agitating device includes agitator 1, shaft 15 is set in agitator 1, agitator 1 top arranges dosing mouth 14, charging aperture 11 is set on agitator, discharging opening 12 and 13 is set bottom agitator, discharging opening 13 is connected by pipeline 32 with the inlet 31 of centrifugal extractor, and pipeline 32 is provided with trapped line pressure valve 33 and screw pump 34；Discharging opening 12 is connected by pipeline 22 with the inlet 21 of horizontal spiral centrifuge, and pipeline 22 is provided with trapped line pressure valve 23 and screw pump 24；The aqueous phase outlet 35 of centrifugal extractor is connected on the charging aperture 11 of agitator by pipeline 36, and pipeline 36 is provided with trapped line pressure valve 37 and screw pump 38.
During use, solvent to be recycled containing CO2The aqueous phase of switching mode solvent enters agitator 1 from charging aperture 11, adds solid NaOH from dosing mouth 14, utilizes shaft 15 mixing and stirring, reacts complete CO2After switching mode solvent is isolated from aqueous phase, open in the solution in agitator 1 is pumped into centrifugal extractor 3 by screw pump 34 by trapped line pressure valve 33 and complete to separate, reclaim and obtain part CO2Switching mode solvent, remaining aqueous phase, in pipeline 36 returns agitator 1, adds solid CaO from dosing mouth 14, after completion of the reaction, open in the solution in agitator 1 is pumped into horizontal spiral centrifuge 2 by screw pump 24 by trapped line pressure valve 23 and complete to separate, reclaim and obtain remaining CO2Switching mode solvent.
Further, described agitator 1 top cover plate 16 seals, it is to avoid the leakage of liquid during shaft stirring.
Above-mentioned containing CO2The aqueous phase of switching mode solvent refers to use CO2The aqueous phase of isolated after switching mode solvent process oil-based drill cuttings.Particularly as follows: by etc. the oil-based drill cuttings of quality and CO2Switching mode solvent mixes, and stirs 30min under room temperature, and centrifugation goes out residue and mixes oils extracting solution, in mass ratio extracting solution: water=1: 2 add quantitative water in extracting solution, are passed through CO under high velocity agitation2, ventilate after 1h under 1L/min flux, isolated mineral oils and containing CO2The aqueous phase of switching mode solvent.
Below it is only preferred implementation of the present utility model, it is noted that above-mentioned preferred implementation is not construed as restriction of the present utility model, and protection domain of the present utility model should be as the criterion with claim limited range.For those skilled in the art, without departing from spirit and scope of the present utility model, it is also possible to making some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (8)
1. the CO processed for oil-based drill cuttings2The retracting device of switching mode solvent, it is characterised in that: it includes
Agitating device and centrifuge, the discharging opening of agitating device is connected by pipeline with the inlet of centrifuge, pipeline sets
Putting trapped line pressure valve and screw pump, described agitating device includes agitator, arranges shaft, agitator top in agitator
Dosing mouth is set, agitator arranges charging aperture.
A kind of CO processed for oil-based drill cuttings the most according to claim 12The retracting device of switching mode solvent,
It is characterized in that: described centrifuge is selected from horizontal spiral centrifuge and centrifugal extractor.
A kind of CO processed for oil-based drill cuttings the most according to claim 12The retracting device of switching mode solvent,
It is characterized in that: described dosing mouth includes NaOH dosing mouth and CaO dosing mouth.
A kind of CO processed for oil-based drill cuttings the most according to claim 12The retracting device of switching mode solvent,
It is characterized in that: described agitator top cover plate for sealing.
A kind of CO processed for oil-based drill cuttings the most according to claim 12The retracting device of switching mode solvent,
It is characterized in that: two discharging openings, a discharging opening and the inlet of centrifugal extractor are set bottom described agitator
Being connected by pipeline, another discharging opening is connected by pipeline with the inlet of horizontal spiral centrifuge, described centrifugal
The aqueous phase outlet of extracter is connected on the charging aperture of agitator by pipeline.
A kind of CO processed for oil-based drill cuttings the most according to claim 52The retracting device of switching mode solvent,
It is characterized in that: on the pipeline that the inlet of described centrifugal extractor is connected with agitator discharging opening, be provided with trapped line pressure valve
And screw pump.
A kind of CO processed for oil-based drill cuttings the most according to claim 52The retracting device of switching mode solvent,
It is characterized in that: be provided with on the pipeline that the inlet of described horizontal spiral centrifuge is connected with agitator discharging opening and cut
Stay valve and screw pump.
A kind of CO processed for oil-based drill cuttings the most according to claim 52The retracting device of switching mode solvent,
It is characterized in that: be provided with on the pipeline that the aqueous phase outlet of described centrifugal extractor is connected with the charging aperture of agitator and cut
Stay valve and screw pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620427800.6U CN205740896U (en) | 2016-05-11 | 2016-05-11 | A kind of retracting device of the CO2 switching mode solvent processed for oil-based drill cuttings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620427800.6U CN205740896U (en) | 2016-05-11 | 2016-05-11 | A kind of retracting device of the CO2 switching mode solvent processed for oil-based drill cuttings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205740896U true CN205740896U (en) | 2016-11-30 |
Family
ID=57367530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620427800.6U Expired - Fee Related CN205740896U (en) | 2016-05-11 | 2016-05-11 | A kind of retracting device of the CO2 switching mode solvent processed for oil-based drill cuttings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205740896U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105778974A (en) * | 2016-05-11 | 2016-07-20 | 西南石油大学 | Recovery device for CO2 switchable solvent for processing oil-based drilling cuttings |
| CN113546942A (en) * | 2020-04-26 | 2021-10-26 | 中国石油天然气集团有限公司 | Device and process for oil extraction and extractant recovery in oil-containing solid waste |
-
2016
- 2016-05-11 CN CN201620427800.6U patent/CN205740896U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105778974A (en) * | 2016-05-11 | 2016-07-20 | 西南石油大学 | Recovery device for CO2 switchable solvent for processing oil-based drilling cuttings |
| CN105778974B (en) * | 2016-05-11 | 2017-05-03 | 四川奎能环保科技有限公司 | Recovery device for CO2 switchable solvent for processing oil-based drilling cuttings |
| CN113546942A (en) * | 2020-04-26 | 2021-10-26 | 中国石油天然气集团有限公司 | Device and process for oil extraction and extractant recovery in oil-containing solid waste |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100486665C (en) | Oil soil treatment technique for tank cleaning | |
| CN102267734B (en) | Enclosed circulating air floatation method and apparatus | |
| CN206486317U (en) | A kind of household kitchen oil-water separator | |
| CN105925300B (en) | A kind of CO for oil-based drill cuttings treatment2The recovery method of switching mode solvent | |
| CN202284175U (en) | Oily sludge treatment device | |
| CN205653412U (en) | Oil sand water separator who produces in oil development production | |
| CN103206179B (en) | Skid-mounted oilfield drilling fluid does not land harmless treatment device | |
| CN108675577A (en) | A kind of processing method of oily sludge | |
| CN206955874U (en) | The processing system and its separation equipment of a kind of oily sludge | |
| CN104624608B (en) | The recovery for the oil base solid waste that shale gas drilling well is produced and Application way | |
| CN202898175U (en) | Oil field oily sludge resourceful treatment device | |
| CN205477542U (en) | Waste mud is along with boring integration processing system | |
| CN110240373A (en) | A kind of cleaning agent and processing method handling polymer-containing oil sludge | |
| CN205740896U (en) | A kind of retracting device of the CO2 switching mode solvent processed for oil-based drill cuttings | |
| CN101053799A (en) | Preparation of demulsifying agent for processing mud and sand containing oil and its processing method | |
| CN109250885A (en) | A kind of processing method of oil gas field oily sludge | |
| CN107140797A (en) | Oil-based drill cuttings separation and recovery system and method | |
| CN208594184U (en) | Oil sludge sand microbiological treatment system | |
| CN216445153U (en) | Flowing back processing apparatus is returned to oil field fracturing | |
| CN105778974B (en) | Recovery device for CO2 switchable solvent for processing oil-based drilling cuttings | |
| CN206266498U (en) | A kind of oil gas field oil-containing solid refuse body processing unit | |
| CN104745155A (en) | Recycling and harmless treatment process of waste oil-based drilling fluid | |
| CN204782862U (en) | Continuous processing apparatus of oil base drill chip | |
| CN205117256U (en) | Oiliness drill chip is along with boring processing apparatus | |
| CN2663040Y (en) | Resourcelized treatment apparatus for oil-containing mud produced by oil development |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20170511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |