CN104726082B - A kind of organic base descaling agent applied to ternary composite driving and preparation method thereof - Google Patents

A kind of organic base descaling agent applied to ternary composite driving and preparation method thereof Download PDF

Info

Publication number
CN104726082B
CN104726082B CN201510142283.8A CN201510142283A CN104726082B CN 104726082 B CN104726082 B CN 104726082B CN 201510142283 A CN201510142283 A CN 201510142283A CN 104726082 B CN104726082 B CN 104726082B
Authority
CN
China
Prior art keywords
organic base
ternary composite
composite driving
descaling agent
add
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.)
Active
Application number
CN201510142283.8A
Other languages
Chinese (zh)
Other versions
CN104726082A (en
Inventor
高清河
任成峰
钱慧娟
侯丛福
侯志峰
孟凡坤
孔令维
刘永鹏
塔永强
刘洪胜
孙洪海
陈新萍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daqing Petroleum Administration Bureau
China National Petroleum Corp
Original Assignee
Daqing Petroleum Administration Bureau
China National Petroleum Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daqing Petroleum Administration Bureau, China National Petroleum Corp filed Critical Daqing Petroleum Administration Bureau
Priority to CN201510142283.8A priority Critical patent/CN104726082B/en
Publication of CN104726082A publication Critical patent/CN104726082A/en
Application granted granted Critical
Publication of CN104726082B publication Critical patent/CN104726082B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
    • C09K8/528—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning inorganic depositions, e.g. sulfates or carbonates
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
    • C09K8/528—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning inorganic depositions, e.g. sulfates or carbonates
    • C09K8/532—Sulfur

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

The present invention relates to a kind of organic base descaling agent applied to ternary composite driving and preparation method thereof.Mainly solve the problems, such as that oil well fouling is serious in ternary compound oil drive oil recovery process.It is characterized in that：The mass percent of the organic base descaling agent raw material and raw material is as follows：Sodium gluconate 20~30%, the big ring polyamine 15~35% of methyl, double thioether 15~35%, Malaysia acid disodium 15~25%, ethylenediamine tetra-acetic acid 5~10%, pH adjusting agent 5~6%, softened water 10~15%.The organic base descaling agent for being applied to ternary composite driving can effectively solve the problems, such as oil well fouling in ternary compound oil drive oil recovery process, Extended Pump Detection Period.

Description

A kind of organic base descaling agent applied to ternary composite driving and preparation method thereof
Technical field：
The present invention relates to ternary composite oil-displacing descaling agent used in a kind of field of oil field oil extraction, particularly one kind is applied to Organic base descaling agent of ternary composite driving and preparation method thereof.
Background technology：
Ternary composite driving is one of important technology of tertiary oil recovery, is carried out using physics, chemical, biological new technology The tertiary oil recovery that tailing recovers the oil, can improve recovery ratio 20% or so, but there are serious scale in systems such as injection, lifting, ground Problem.To mitigate dirt card inspection pump, ternary composite driving uses screw bolt well more.Generally use acid snaking method scale removal at present, but acid Chrome plating corrosion to screw pump is strong, has protective effect to coating without effective corrosion inhibiter, and in addition sour scale removal process is to screw pump Rubber have aging action.Sour snaking is serious to system corrosion.
The content of the invention：
In order to solve the problems, such as present in background technology, it is clear that the present invention provides a kind of organic base applied to ternary composite driving Dirty agent and preparation method thereof, can should effectively solve ternary compound oil drive applied to the organic base descaling agent of ternary composite driving Oil well fouling problem in oil recovery process, Extended Pump Detection Period.The present invention also provides one kind to be applied to Ternary composite drive well The production method of descaling agent.
The present invention solves the problems, such as that it can reach by following technical solution：A kind of organic base applied to ternary composite driving The mass percent of descaling agent, raw material and raw material is as follows：Sodium gluconate 20~30%, the big ring polyamine 15~35% of methyl are double Thioether 15~35%, Malaysia acid disodium 15~25%, ethylenediamine tetra-acetic acid 5~10%, pH adjusting agent 5~6%, softened water 10~ 15%.
The pH adjusting agent is ammonium chloride or sodium hydroxide；The double thioether is R-S-S-R, alkyl number 2-11.
A kind of preparation method of organic base descaling agent applied to ternary composite driving, comprises the following steps：
(1) softened water is added in reaction kettle, slowly adds sodium gluconate；
(2) stirring system, 80~150r/min of mixing speed are started；
(3) start steam-heating system, be warming up to 90 DEG C；
(4) the big ring polyamine of methyl is added with the speed of 200kg/h；
(5) after adding the big ring polyamine of methyl, double thioether is added with the speed of 100kg/h；
(6) 100 DEG C are warming up to, adds 5%pH conditioning agents and Malaysia acid disodium；
(7) mixing speed is improved to 120-150r/min, adds ethylenediamine tetra-acetic acid；
(8) 120 DEG C are warming up to after adding, stirring reaction 1.5h；
(9) remaining pH adjusting agent is added, control system pH value is more than 12；
(10) start cooling water system, be cooled to 50 DEG C, barrelling.
It is steady mainly as complexing agent, water quality that this is applied to sodium gluconate in the organic base descaling agent raw material of ternary composite driving Determine agent, calcium carbonate, magnesium can be dissolved, form ionic complex and enter in water, can stablize in water in the form of an ion；The big ring of methyl There is polyamine surface-active can chelate cation again, can dissolve barium carbonate, barium sulfate, calcium sulfate；Double thioether can dissolve in dirt Sulfide, such as iron sulfide；Calcium scale can be directly changed into water-soluble substances by Malaysia acid disodium, and increasing has been shared with sodium gluconate Effect acts on；Ethylenediamine tetra-acetic acid, can play complexing with bivalent cations such as the calcium in snaking system, magnesium, increase system Solubility for scale；System pH is more than 12, and the hydroxyl of formation is dissociated in system and can be acted on oxygen-octahedron, forms inclined silicon Acid group, increases system solubility for scale.
It is described of the invention to be had the advantages that compared with above-mentioned background technology：It should be applied to ternary composite driving Organic base descaling agent, by sodium gluconate, the big ring polyamine of methyl, double thioether (R-S-S-R alkyl number 2-11), ethylenediamine tetrem Acid, Malaysia acid disodium, pH adjusting agent under agitation during in proportion, process add in reaction kettle at a slow speed, add a small amount of water i.e. Can.On the coating of screw pump without influence, rubber is produced without aging action, snaking process without gas.Production process without discarded object, Production process realizes clean manufacturing.Snaking process improves the utilization ratio of descaling agent by the way of well head circulation.During snaking Between 24 it is small when, snaking rate is up to more than 85%.Preparation method is simple, no waste discharge.Available for stopping well snaking, it can also be used to do not stop Well snaking.
Below in conjunction with embodiment, the invention will be further described：
Embodiment 1：
At room temperature, 15kg softened waters are added in reaction kettle, slowly add 20kg sodium gluconates, start stirring system, Mixing speed 80r/min；Start steam-heating system, be warming up to 90 DEG C；The big ring of 18kg methyl is added with the speed of 200kg/h to gather Amine；After adding the big ring polyamine of methyl, 22kg double thioethers are added with the speed of 100kg/h；100 DEG C are warming up to, adds 0.25kgpH Conditioning agent ammonium chloride and 15kg Malaysias acid disodium；Mixing speed is improved to 120r/min, adds 5kg ethylenediamine tetra-acetic acids；Add After be warming up to 120 DEG C, stirring reaction 1.5h；Remaining 4.75kgpH conditioning agents are added, control system pH value is more than 12；Start Cooling water system, is cooled to 50 DEG C, barrelling.The descaling rate for measuring product is 85%.
6 step of embodiment 2- embodiments repeatedly embodiment 1 the step of, the production of obtained ternary composite driving organic base descaling agent The formula that example is taken is shown in Table 1.Gained ternary composite driving organic base descaling agent technical target of the product is shown in Table 2.
1 ternary composite driving organic base descaling agent of table production ingredient proportion (%)
Title Formula 1 Formula 2 Formula 3 Formula 4 Formula 5 Formula 6
Sodium gluconate 20 23 20 20 23 25
The big ring polyamine of methyl 18 20 15 20 18 15
Double thioether 22 15 25 19 18 22
Malaysia acid disodium 15 16 15 20 18 16
PH adjusting agent ammonium chloride 5 5 5 6 6 6
Ethylenediamine tetra-acetic acid 5 6 10 5 8 6
Softened water 15 15 10 10 10 10
Descaling rate/% 82 84 83 80 86 85
It is whether qualified It is qualified It is qualified It is qualified It is qualified It is qualified It is qualified
2 ternary composite driving organic base descaling agent technical target of the product of table
Project Formula 1
Character Faint yellow uniform liquid
Density (20 DEG C, g/cm3) >1.38
Solid content, % >65%
PH value (aqueous solution) >12
Descaling rate/% >80
4th, live stain eliminating technology
1. the polished rod of holddown well is above carried first, more than pick up height 50cm；2. closing well, while close and carry out Water gate valve； 3. pipeline pressure testing 15-18MPa, does not spray and does not leak；4. injected clear water, near wellbore zone is pushed into by downhole well fluid；5. inject scale remover Afterwards, 3-5 side's clear water is reinjected, by scale remover pressure injection to effect well section, closing well reaction 24h；6. driving a well, cleaning mixture is returned into discharge Come；7. it is transferred to normal production.
Stain eliminating technology needs equipment to have 1, tank car and pump truck 1.After scale removal, pumping unit recovers normal work, and oil pumping is electromechanical Stream recovers to new pump state more than 70%, reaches scale removal effect.
Feed chemicals used in above-described embodiment are all commercially available.

Claims (3)

  1. A kind of 1. organic base descaling agent applied to ternary composite driving, it is characterised in that：The mass percent of raw material and raw material is such as Under：Sodium gluconate 20~30%, the big ring polyamine 15~20% of methyl, double thioether 15~25%, Malaysia acid disodium 15~25%, second two Amine tetraacethyl 5~10%, pH adjusting agent 5~6%, softened water 10~15%；The pH adjusting agent is ammonium chloride or sodium hydroxide.
  2. A kind of 2. organic base descaling agent applied to ternary composite driving according to claim 1, it is characterised in that：It is described double Thioether is R-S-S-R, and wherein R represents alkyl, and the carbon number on the alkyl is 2-11.
  3. 3. a kind of preparation method of the organic base descaling agent applied to ternary composite driving described in claim 1 or 2, its feature exist In：Comprise the following steps：
    （1）, softened water is added in reaction kettle, add sodium gluconate in softened water；
    （2）, start stirring system, 80~150r/min of mixing speed；
    （3）, start steam-heating system, be warming up to 90 DEG C；
    （4）, the big ring polyamine of methyl is added with the speed of 200kg/h；
    （5）, add the big ring polyamine of methyl after, double thioether is added with the speed of 100kg/h；
    （6）, be warming up to 100 DEG C, add 5%pH conditioning agents and Malaysia acid disodium；
    （7）, improve mixing speed to 120-150r/min, add ethylenediamine tetra-acetic acid；
    （8）, add after be warming up to 120 DEG C, stirring reaction 1.5h；
    （9）, add remaining pH adjusting agent, control system pH value is more than 12；
    （10）, start cooling water system, be cooled to 50 DEG C, barrelling.
CN201510142283.8A 2015-03-27 2015-03-27 A kind of organic base descaling agent applied to ternary composite driving and preparation method thereof Active CN104726082B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510142283.8A CN104726082B (en) 2015-03-27 2015-03-27 A kind of organic base descaling agent applied to ternary composite driving and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510142283.8A CN104726082B (en) 2015-03-27 2015-03-27 A kind of organic base descaling agent applied to ternary composite driving and preparation method thereof

Publications (2)

Publication Number Publication Date
CN104726082A CN104726082A (en) 2015-06-24
CN104726082B true CN104726082B (en) 2018-05-15

Family

ID=53450518

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510142283.8A Active CN104726082B (en) 2015-03-27 2015-03-27 A kind of organic base descaling agent applied to ternary composite driving and preparation method thereof

Country Status (1)

Country Link
CN (1) CN104726082B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106147735A (en) * 2016-07-01 2016-11-23 中国石油集团渤海钻探工程有限公司 A kind of barium strontium calcium scale remover and preparation method thereof
CN106634914B (en) * 2016-12-09 2017-09-19 西南石油大学 The working solution system removed suitable for water-base drilling fluid filter cake before well cementation
CN113249104B (en) * 2020-02-13 2022-08-05 中国石油天然气股份有限公司 Scale inhibition and scale removal agent and preparation method thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4476930A (en) * 1982-08-23 1984-10-16 Union Oil Company Of California Inhibition of scale deposition from steam generation fluids
CN1486942A (en) * 2003-06-03 2004-04-07 中国石油兰州炼油化工总厂 Scale inhibiting, Corrosion retarding and environment protecting water treating agent
CN1621362A (en) * 2003-11-26 2005-06-01 北京燕化兴业技术开发公司 Non-phosphorus compound scale and corrosion inhibitor for treatment of circulating cooling water
CN101671552A (en) * 2009-09-28 2010-03-17 大庆油田有限责任公司 Silicate scale clearing agent for ternary combination flooding extraction well
CN101768430A (en) * 2010-03-05 2010-07-07 陕西延长石油(集团)有限责任公司研究院 Scale inhibition antiscaling agent for oil-water well salt prevention and scale-inhibition operation and preparation process thereof
EP2287441A2 (en) * 1997-01-13 2011-02-23 Ineos Europe Limited Oil and gas field chemicals
CN102321464A (en) * 2011-07-15 2012-01-18 中国石油天然气股份有限公司 Corrosion and scale inhibitor for oil well in high water-cut period

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4476930A (en) * 1982-08-23 1984-10-16 Union Oil Company Of California Inhibition of scale deposition from steam generation fluids
EP2287441A2 (en) * 1997-01-13 2011-02-23 Ineos Europe Limited Oil and gas field chemicals
CN1486942A (en) * 2003-06-03 2004-04-07 中国石油兰州炼油化工总厂 Scale inhibiting, Corrosion retarding and environment protecting water treating agent
CN1621362A (en) * 2003-11-26 2005-06-01 北京燕化兴业技术开发公司 Non-phosphorus compound scale and corrosion inhibitor for treatment of circulating cooling water
CN101671552A (en) * 2009-09-28 2010-03-17 大庆油田有限责任公司 Silicate scale clearing agent for ternary combination flooding extraction well
CN101768430A (en) * 2010-03-05 2010-07-07 陕西延长石油(集团)有限责任公司研究院 Scale inhibition antiscaling agent for oil-water well salt prevention and scale-inhibition operation and preparation process thereof
CN102321464A (en) * 2011-07-15 2012-01-18 中国石油天然气股份有限公司 Corrosion and scale inhibitor for oil well in high water-cut period

Also Published As

Publication number Publication date
CN104726082A (en) 2015-06-24

Similar Documents

Publication Publication Date Title
CN101614502B (en) Cleaning method of low-temperature multi-effect seawater desalination evaporator
CN104726082B (en) A kind of organic base descaling agent applied to ternary composite driving and preparation method thereof
CN101768430B (en) Scale inhibition antiscaling agent for oil-water well salt prevention and scale-inhibition operation and preparation process thereof
CN106281288B (en) A kind of low permeability reservoir pressure reducing and injection increasing agent used for flooding well and preparation method thereof
CN105482802B (en) Online acidizing acid liquid injection system for water injection well and preparation method of online acidizing acid liquid injection system
CN109057753B (en) Oil well blockage removing method
CA2977923A1 (en) Composition useful in sulfate scale removal
CN104479662B (en) Barium-strontium scale remover for oil field digital pressurizing pry
CN103820150A (en) Barium sulfate and strontium sulfate descaling agent and preparation method thereof
CN105219368B (en) A kind of ternary compound oil drive antisludging agent and its application method
CN106833582A (en) Oil field barium strontium dirt cleaning de-plugging agent composition and preparation method
CN104925966B (en) A kind of oil field system anti-incrustation corrosion inhibitor
CN113214813A (en) Chemical blocking remover for immobile pipe column of oil-water well and preparation method and application thereof
CN109354222B (en) Neutral descaling dispersant for oil field
CN106854461A (en) A kind of preparation method of Thief zone fast water injection well scale remover
CN108641694B (en) Scale remover for oil well and preparation method thereof
CN111440679A (en) Cleaning agent for cleaning high sulfate scale and preparation method and application thereof
CN103420509A (en) Preparation method of sodium salt of hydroxyl ethylidene diphosphonic acid compound scale inhibitor
CN106350047B (en) A kind of oil gas field corrosion inhibiter and preparation method thereof
CN106928955A (en) Complexing cleaning fluid and preparation method and application thereof
EP4093708B1 (en) Geothermal well stimulation and silica based deposit removal
CN103922491A (en) Energy-saving scale inhibiting and removing anticorrosion compound medicament for steam boiler and preparation method of medicament
CN106145397A (en) A kind of oilfield injection water neutral corrosion inhibiting and descaling agent and preparation and application thereof
CN106367052A (en) Decompression and augmented injection agent for water injection well as well as preparation method and application thereof
CN106833583A (en) Oil and gas wells in oil fields barite pollution de-plugging agent composition and preparation method thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant