CN101187298A - Super deep water injection well movable type water treatment and well washing technology - Google Patents
Super deep water injection well movable type water treatment and well washing technology Download PDFInfo
- Publication number
- CN101187298A CN101187298A CNA2007101797942A CN200710179794A CN101187298A CN 101187298 A CN101187298 A CN 101187298A CN A2007101797942 A CNA2007101797942 A CN A2007101797942A CN 200710179794 A CN200710179794 A CN 200710179794A CN 101187298 A CN101187298 A CN 101187298A
- Authority
- CN
- China
- Prior art keywords
- water
- well
- tank
- oil
- injection well
- 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.)
- Pending
Links
Images
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to a mobile water treatment and well cleaning technology of a superdeep water injection well, which comprises first, a riffling procedure, utilizing a cyclone separator to desand for backwater of a well mouth of a water injection well, second, a deoiling procedure, utilizing a liquid to liquid cyclone oil eliminator to preprocess oil in water, third, a mixing procedure, fourth, a descending procedure, water from a static mixer gets into a pressure setting tank, and oil and suspended matter in water are further separated and settled, and water treatment agent is added in water, and the water is led to be flocculated and settled, fifth, a filtering procedure, water from the pressure setting tank is delivered to a first, a second, a third grade filter tank to filter to get pure water, sixth, water which passes through the filtering procedure gets into a purified water tank, an outlet of the purified water tank gets into a well casing through a three plunger-pump pressure pump to clear the well casing and the near wellbore zone. The invention is applicable for cleaning well for an ultra-deep water injection well with a big well casing, and a water injection well whose medium is high mining and high salt, and whose pH value is low.
Description
Technical field
The present invention relates to a kind of ultradeep well water injection well movable type water handles and washing technology.
Background technology
Current water flooding well washing truck well-flushing, in Henan Oil Field, the existing application in oil field, Jiangsu, it is that the treatment device for water of sedimentation, filtration, desanding and a centrifugal pump, a motor are housed on a decometer car, pressurize for the water that comes by centrifugal pump through water treatment facilities, pump into pit shaft, repeatedly circulate, pit shaft is rinsed well.This device technique flow process is simple, and design scale is little, is fit to the middle-deep well well-flushing.Water injection well to super dark, big pit shaft, geological conditions complexity can't meet the demands its major defect:
1, the centrifugal pump maximum pressure of selecting for use is 8MPa, the highest discharge capacity be 30 sides/time, can not satisfy well depth greater than 5000m 7 " requirement of production string water injection well well-flushing.Calculate according to theory, during 5000m deep-well well-flushing, discharge capacity should greater than 40 sides/time, pressure should be greater than 12MPa, flow velocity should be greater than 3.46m/S, obvious present well-flushing car does not satisfy this requirement.
2, the container in the well washing equipment, pipeline and pump do not have anti-corrosion measure.The water injection well well-flushing of incompatibility high salinity, high chloride ion content, low pH value.Salinity, chlorion, pH value are the principal elements of corrosion, are 14-30 ten thousand PPM as the formation water salinity of Zhongyuan Oil Field, chloride ion content 10-15 ten thousand PPM.PH value 5.5-6.5, average corrosion rate reaches 1.5-3mm/, and Tarim Basin oil field stratum water is close with Central Plains, and the corrosion situation also can be serious.The well-flushing car is not taked anti-corrosion measure at present, obviously is not suitable for this class water injection well in oil fields well-flushing.
At present, both at home and abroad to well depth greater than 5000m, well bore is 7 " production string; and do not have special backwater flow process again; and formation water salinity is greater than 200,000 PPM, ion concentration is greater than the water injection well well-flushing of 100,000 PPM, the well washing equipment and the technology that adapt with it; as the oil field, Tarim Basin have 82% water injection well belong to situation, normally well-flushing.The purpose of invention is to solve these hole conditions, formation condition, ground flow, the special water injection well well-flushing problem of natural conditions.
Summary of the invention
The purpose of this invention is to provide a kind of super dark, big pit shaft water injection well and medium of being suitable for is that the ultradeep well water injection well movable type water of Gao Kuang, high salt, low pH value water injection well well-flushing is handled and washing technology.
For achieving the above object, the present invention takes following design scheme:
A kind of super dark water injection well movable type water is handled and washing technology, it is characterized in that it comprises the following steps:
A, desanding operation are utilized hydrocyclone that water injection well well head backwater is carried out desanding and are handled, and remove out the bulky grain silt particle;
B, oil removing operation, the water that purifies through the desanding operation enters the liquid-liquid rotational flow oil expeller, and the oil in the water is carried out preliminary treatment;
C, mixed processes, the water that comes out from the oil removing operation enters static mixer;
D, sedimentation operation, the water that comes out from static mixer enters the pressure settling tank, to oil-containing in the water further separate with suspension, sedimentation, and in water, add water treatment agent, make machine heterofluocculation, sedimentation in the water;
E, filter operation, the water that comes out from the pressure settling tank is delivered to first, second and third grade filtering tank successively and is filtered, and further removes oil-containing and suspension in the water outlet, obtains water purification;
F, the water purification that obtains through the filtration operation enter treated water tank, and the treated water tank outlet pumps into pit shaft through the three-throw ram pump pressurization, cleans pit shaft and near wellbore zone.
It comprises that also three trucies are power car, filtration car and sedimentation separation car, described treated water tank and three-throw ram pump are installed on the described power car, described first, second and third grade filtering tank is installed on the described filtration car, and described hydrocyclone, liquid-liquid rotational flow oil expeller, static mixer, pressure settling tank are installed on the described sedimentation separation car.
The inwall of described hydrocyclone, liquid-liquid rotational flow oil expeller, static mixer, pressure settling tank, first, second and third grade filtering tank, treated water tank and three-throw ram pump and connecting pipe adopts nm-class Ti polymer paint to carry out anticorrosion.
Advantage of the present invention is:
1, the super dark water injection well movable type water of the present invention is handled and washing technology, and specified well-flushing pressure is 16Mpa, and specified rate of well-flushing is 50M
3/ h, working time is continuous, be suitable for: well depth 3000～6000m, production string 7 ", formation water salinity 15～30PPM, formation water c1 content 10～15PPM; can handle the assorted 5000PPM of being of the highest machine of backwater; can handle the highest oil-containing of backwater is 5000PPM, and whole washing well process is totally-enclosed, no wastewater disposition, has realized safety and environmental protection.
2, the present invention comprises that also three trucies are power car, filtration car and sedimentation separation car, treated water tank and three-throw ram pump are installed on the power car, first, second and third grade filtering tank is installed in and filters on the car, and hydrocyclone, liquid-liquid rotational flow oil expeller, static mixer, pressure settling tank are installed on the sedimentation separation car.Therefore can realize that movable type water is handled and the effect of well-flushing.
3, to adopt nm-class Ti polymer paint to carry out anticorrosion for the inwall of the hydrocyclone that uses among the present invention, liquid-liquid rotational flow oil expeller, static mixer, pressure settling tank, first, second and third grade filtering tank, treated water tank and three-throw ram pump and connecting pipe.
Description of drawings
Fig. 1 represents super dark water injection well movable type water processing of the present invention and washing technology flow chart
Fig. 2 represents to filter among the present invention the bassinet structure schematic diagram
Fig. 3 is the schematic top plan view of Fig. 2
Fig. 4 is sedimentation separation bassinet structure schematic diagram among the present invention
Fig. 5 is the schematic top plan view of Fig. 4
The specific embodiment
As shown in Figure 1, a kind of super dark water injection well movable type water of the present invention is handled and washing technology, it is characterized in that it comprises the following steps:
A, desanding operation utilize model that Weihai Haiwang Hydrocyclone Co., Ltd., Beijing Huayu Engineering Co., Ltd. of Zh produces to handle for 1 pair of water injection well well head of hydrocyclone backwater of CS200 carries out desanding, remove out the bulky grain silt particle; Model is that the design pressure of the hydrocyclone 1 of CS200 is 1.6MPa, and operating pressure is 1.0MPa, treating capacity be 50 sides/time, entry design pressure is 16Mpa.
It is the liquid-liquid rotational flow oil expeller 2 of XL-50/1.6 that b, oil removing operation, the water that purifies through the desanding operation enter the model of being produced by the general magnificent petrochemical industry plant equipment in Langfang Co., Ltd, and the oil in the water is carried out preliminary treatment; Do not removing out most of oil slick in the water under the situation with water treatment agent;
C, mixed processes, it is that the static mixer 3 of SV-5/100-1.6-1000AB mixes fluid that the water that comes out from the oil removing operation enters the model of being produced by prestige petrochemical industry plant equipment manufacturing company of Qidong City section, the treating capacity of this static mixer 3 be 50 sides/time, design pressure is 1.6MPa;
D, sedimentation operation, the water that comes out from static mixer 3 enters the XL-50-1.6 pressure settling tank of being produced by Beijing Hui Bopu technology Co., Ltd 4, and oil-containing in the water is further separated with suspension; This pressure settling tank 4 has three sections fillers, first section is the coarse packing section, second and third section is a corrugated sheet combined stuffing section, when coming water to pass through the coarse packing section, little oil droplet in the liquid becomes big gradually, enter to the oil removing of dirty corrugated sheet combined stuffing section, water outlet enters to upper reaches corrugated sheet combined stuffing section after by injection well downhole flow regulator again and removes out suspension again; Coarse packing section design load is 50M3/M2h, 1.2 meters of packed heights, and particle diameter 5-10mm, the surface loading of back two sections corrugated sheet combined stuffing sections is 12.5M3/M2h, every period sedimentation time is 6mm.And in water, add water treatment agent polymeric aluminum 30-50PPM and polyacrylamide 1-3PPM, and make machine heterofluocculation, sedimentation in the water, make recirculated water obtain purifying faster and betterly;
E, filter operation, the water that comes out from pressure settling tank 4 is delivered to first, second and third grade filtering tank 5,6,7 successively and is filtered, and further removes oil-containing and suspension in the water outlet, obtains water purification; The model that the one-level filtering tank adopts Beijing Hui Bopu technology Co., Ltd to produce is the filtering tank of DN2.0X1.2M, this filtering tank adopts the 0.8-1.2mm walnut shell as filtrate, it is higher that it has filtering velocity, effluent quality is good, characteristics such as light weight, the design filtering velocity is 19.5M/h, and operating pressure is 0.6MPa, and packed height is 1M; The DN2.0X1.2M filtering tank that the cascade filtration jar adopts Beijing Hui Bopu technology Co., Ltd to produce, this filtering tank adopts the 30mm fibrous nodules as filtrate, and it has the characteristics more excellent than walnut shell, and the design filtering velocity is 19.5M/h, operating pressure is 0.6MPa, and filler is 450 kilograms; The three-stage filtration jar is that the model that Beijing Hui Bopu technology Co., Ltd produces is the filtering tank of DN0.6X1.2M, and this filtering tank adopts vertical dismountable fine filter, four in parallel uses, and filter core is inflatable wound form cotton filter core (66mm * 1012mm);
F, the water purification that obtains through the filtration operation enter treated water tank 10, the model that treated water tank 10 outlet is produced via middle oil field special vehicle Co., Ltd is that three-throw ram pump 11 pressurizations of 3PC-270 pump into pit shaft, clean pit shaft and near wellbore zone, the highest discharge capacity pressure of this three-throw ram pump is 35MPa, maximum pump discharge 50m
3/ h, and corrosive nature such as ability Gao Kuang, high salt and can 24 continuous throughout the twenty-four hour24s.
As Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, it comprises that three trucies are power car, filtration car 8 and sedimentation separation car 9, treated water tank and three-throw ram pump are installed on the described power car, first, second and third grade filtering tank 5,6,7 is installed in and filters on the car 8, hydrocyclone 1, liquid-liquid rotational flow oil expeller 2, static mixer 3, pressure settling tank 4 are installed on the sedimentation separation car 9, to realize that movable type water is handled and the effect of well-flushing.
The model that the inwall of hydrocyclone 1, liquid-liquid rotational flow oil expeller 2, static mixer 3, pressure settling tank 4, first, second and third grade filtering tank, treated water tank 5,6,7 and three-throw ram pump and connecting pipe adopts Harbin nanometer development in science and technology Co., Ltd of prosperous section to produce is that 853 nm-class Ti polymer paint carries out anticorrosion.Titanium is the extraordinary metal material of a kind of corrosion resistance, nm-class Ti polymer paint is that titanium nano powder and organic polymer carry out the new function material that the chemical bonding chemisorbed forms, have some characteristics of nano particle, the anticorrosion mechanism of nm-class Ti polymer paint mainly is: (1), chemical bonding and chemisorbed; (2), the impermeabilisation ability is strong; (3), strong adhesion; (4), corrosion resistance is strong.Nm-class Ti polymer paint, its anticorrosion antiscale again, easy cleaning, to the high salinity of normal temperature-120 ℃, the water quality of high CL-content is used for a long time, can not produce fouling and corrosion.
Embodiment one, uses super dark water injection well movable type water processing of the present invention and washing technology that No. 1 well is carried out the well-flushing experiment.Contain the assorted 12PPM of machine before the well-flushing in the well water outlet, oily 15PPM, day 12 side/days of notes.After adopting super dark water injection well movable type water processing of the present invention and washing technology that No. 1 well is carried out three cycle well-flushings, contain the assorted 3PPM of machine in the well water outlet, oily 6PPM, a day fluence has improved 50%.
Embodiment two, use super dark water injection well movable type water processing of the present invention and washing technology that No. 2 oil wells are carried out the well-flushing experiment.Contain the assorted 79.88PPM of machine before the well-flushing in the well water outlet.Adopt the super dark water injection well movable type water of the present invention to handle and washing technology is just being washed 3 circulations, 3 circulations of backwash successively, just washed 4 circulations after totally 10 circulation well cleanup No. 2 wells, contain machine in the water and mix and drop to 4.1mg/l.
Claims (3)
1. a super dark water injection well movable type water is handled and washing technology, it is characterized in that it comprises the following steps:
A, desanding operation are utilized hydrocyclone that water injection well well head backwater is carried out desanding and are handled, and remove out the bulky grain silt particle;
B, oil removing operation, the water that purifies through the desanding operation enters the liquid-liquid degreaser cyclone, and the oil in the water is carried out preliminary treatment;
C, mixed processes, the water that comes out from the oil removing operation enters static mixer;
D, sedimentation operation, the water that comes out from static mixer enters the pressure settling tank, to oil-containing in the water further separate with suspension, sedimentation, and in water, add water treatment agent, make machine heterofluocculation, sedimentation in the water;
E, filter operation, the water that comes out from the pressure settling tank is delivered to first, second and third grade filtering tank successively and is filtered, and further removes oil-containing and suspension in the water outlet, obtains water purification;
F, the water purification that obtains through the filtration operation enter treated water tank, and the treated water tank outlet pumps into pit shaft through the three-throw ram pump pressurization, cleans pit shaft and near wellbore zone.
2. super dark water injection well movable type water according to claim 1 is handled and washing technology, it is characterized in that, it comprises that three trucies are power car, filtration car and sedimentation separation car, described treated water tank and three-throw ram pump are installed on the described power car, described first, second and third grade filtering tank is installed on the described filtration car, and described hydrocyclone, liquid-liquid rotational flow oil expeller, static mixer, pressure settling tank are installed on the described sedimentation separation car.
3. super dark water injection well movable type water according to claim 1 and 2 is handled and washing technology, it is characterized in that the inwall of described hydrocyclone, liquid-liquid rotational flow oil expeller, static mixer, pressure settling tank, first, second and third grade filtering tank, treated water tank and three-throw ram pump and connecting pipe adopts nm-class Ti polymer paint to carry out anticorrosion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101797942A CN101187298A (en) | 2007-12-18 | 2007-12-18 | Super deep water injection well movable type water treatment and well washing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101797942A CN101187298A (en) | 2007-12-18 | 2007-12-18 | Super deep water injection well movable type water treatment and well washing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101187298A true CN101187298A (en) | 2008-05-28 |
Family
ID=39479849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101797942A Pending CN101187298A (en) | 2007-12-18 | 2007-12-18 | Super deep water injection well movable type water treatment and well washing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101187298A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956545A (en) * | 2010-09-27 | 2011-01-26 | 大庆油田有限责任公司 | Skid-mounted integrated movable water injection device |
| CN102085951B (en) * | 2009-12-08 | 2012-06-06 | 徐杰 | Mobile oil depot |
| CN102561963A (en) * | 2012-01-30 | 2012-07-11 | 中原特种车辆有限公司 | Flushing fluid treatment equipment |
| CN102852367A (en) * | 2012-07-10 | 2013-01-02 | 孔令先 | Safe and covert high-capacity oil depot arranged underground |
| CN102105407B (en) * | 2008-07-31 | 2013-07-17 | 贝尔直升机泰克斯特龙公司 | System and method for treating wastewater |
| CN104724849A (en) * | 2013-12-19 | 2015-06-24 | 中国科学院沈阳应用生态研究所 | Method for removal of polyacrylamide and hydrolysis product thereof from polymer flooding well washing water |
| CN105156047A (en) * | 2015-06-18 | 2015-12-16 | 中国石油天然气股份有限公司 | Skid-mounted water injection well circulating well washing device and circulating well washing technique |
| CN107489384A (en) * | 2016-06-13 | 2017-12-19 | 中国石油化工股份有限公司 | A kind of skid-mounted type workover treatment flushing fluid recycling device and method |
| CN112010459A (en) * | 2020-08-10 | 2020-12-01 | 陕西优斯达环境科技有限公司 | Treatment device and treatment method for oilfield produced water |
-
2007
- 2007-12-18 CN CNA2007101797942A patent/CN101187298A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102105407B (en) * | 2008-07-31 | 2013-07-17 | 贝尔直升机泰克斯特龙公司 | System and method for treating wastewater |
| CN102085951B (en) * | 2009-12-08 | 2012-06-06 | 徐杰 | Mobile oil depot |
| CN101956545A (en) * | 2010-09-27 | 2011-01-26 | 大庆油田有限责任公司 | Skid-mounted integrated movable water injection device |
| CN101956545B (en) * | 2010-09-27 | 2013-01-02 | 大庆油田有限责任公司 | Skid-mounted integrated movable water injection device |
| CN102561963A (en) * | 2012-01-30 | 2012-07-11 | 中原特种车辆有限公司 | Flushing fluid treatment equipment |
| CN102852367A (en) * | 2012-07-10 | 2013-01-02 | 孔令先 | Safe and covert high-capacity oil depot arranged underground |
| CN104724849A (en) * | 2013-12-19 | 2015-06-24 | 中国科学院沈阳应用生态研究所 | Method for removal of polyacrylamide and hydrolysis product thereof from polymer flooding well washing water |
| CN105156047A (en) * | 2015-06-18 | 2015-12-16 | 中国石油天然气股份有限公司 | Skid-mounted water injection well circulating well washing device and circulating well washing technique |
| CN105156047B (en) * | 2015-06-18 | 2017-10-17 | 中国石油天然气股份有限公司 | A kind of skid water injection well cyclic flushing device and circulation well cleanup process |
| CN107489384A (en) * | 2016-06-13 | 2017-12-19 | 中国石油化工股份有限公司 | A kind of skid-mounted type workover treatment flushing fluid recycling device and method |
| CN112010459A (en) * | 2020-08-10 | 2020-12-01 | 陕西优斯达环境科技有限公司 | Treatment device and treatment method for oilfield produced water |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101187298A (en) | Super deep water injection well movable type water treatment and well washing technology | |
| US8828224B2 (en) | Device for purifying oily wastewater | |
| CN201132782Y (en) | Purification device for oil-contaminated water and purification system with the device | |
| US20140014584A1 (en) | Wastewater purification system and method | |
| US20140339162A1 (en) | Boron removal from oilfield water | |
| US20170158538A1 (en) | Systems and methods for treating oilfield wastewater | |
| CN102452760A (en) | Treatment method for recycle of oil field produced water | |
| CN1367146A (en) | Method for controlling oil-bearing waste water | |
| CN106542677A (en) | A kind of ternary composite driving oil field produced water treatment technique | |
| CN109422299B (en) | Oil-water separation device and oil-water separation method | |
| CN203530040U (en) | Skid-mounted multifunctional integrated oilfield water treatment device | |
| CN203620318U (en) | Fiber ball filter | |
| Wei et al. | Removal of chlorine, microparticles and water from high-viscosity liquids by a sand filter coupling hydrocyclone | |
| CN107365008A (en) | A kind of vehicular pressure break returns waste discharge and abandons liquid treating system | |
| CN104876378B (en) | Ternary combination flooding extraction sewage system processes technique | |
| US20130134094A1 (en) | Methods and Apparatus for Removing Impurities from Water | |
| CN212954585U (en) | Skid-mounted oil-gas field fracturing anti-drainage purifying device | |
| CN112272657B (en) | Natural water and waste water treatment method | |
| CN104341052A (en) | Skid-mounted multifunctional integral oil field water treatment device | |
| CN113233639A (en) | Method for enhancing filtering speed of filter material | |
| CN113233659A (en) | Method for recovering filtering speed of filter material | |
| CN112010459A (en) | Treatment device and treatment method for oilfield produced water | |
| CN210313812U (en) | Integrated treatment system for flushing backflow liquid | |
| CN105457339B (en) | Oil-water separation method and device | |
| CN201704138U (en) | Airtight sewage treatment device for tank car mechanical cleaning |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080528 |