CN103387640A - Method for preparing oil-well cement dispersing agent - Google Patents
Method for preparing oil-well cement dispersing agent Download PDFInfo
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- CN103387640A CN103387640A CN2013103437909A CN201310343790A CN103387640A CN 103387640 A CN103387640 A CN 103387640A CN 2013103437909 A CN2013103437909 A CN 2013103437909A CN 201310343790 A CN201310343790 A CN 201310343790A CN 103387640 A CN103387640 A CN 103387640A
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Abstract
The invention discloses a method for preparing an oil-well cement dispersing agent. The method comprises the steps of: (1) putting 43.8 parts by weight of deionized water into a reactor; (2) sequentially adding the following ingredients in parts by weight into the reactor while stirring: 28.1 parts of 2-acrylamido-2-methyl propanesulfonic acid, 0.6 part of maleic anhydride, 5.6 parts of isopropanol, 2 parts of N-vinyl pyrrolidone and 1.7 parts of acrylic acid,; (3) adding a 50% sodium hydroxide solution, which is prepared from 5.6 parts by weight of deionized water and 5.6 parts by weight of sodium hydroxide, into the reactor so as to adjust the pH value to 4-4.5, and heating to 70 DEG C; (4) dropwise adding an initiator, which is prepared from 5.6 parts by weight of deionized water and 1.4 parts by weight of ammonium persulfate, into the reactor while stirring, and reacting for 120 minutes after dropwise adding; and (5) discharging reacted material liquid, drying and crushing, thus obtaining the oil-well cement dispersing agent. The dispersing agent prepared by the method is applicable to oil-well cement of various kinds and can be used together with various admixtures so as to improve the rheological property of cement paste.
Description
Technical field:
The present invention a kind ofly can effectively reduce grout viscosity while for oil gas, cementing the well, and guarantees the preparation method of the oil well cement dispersant of construction safety.
Background technology:
At present, the dispersion agent that uses in oil well cement paste is to be that dispersion agent, naphthalene are that dispersion agent, lignin type are as main take the sulfonated ketone aldehyde polycondensate, the shortcoming that these dispersion agents exist is the thermal adaptation narrow range, applicable cement scope is little, extend cement slurry thickening time, poor with other polymeric additives compatibleness, can not meet preferably requirement of engineering.
Summary of the invention:
The purpose of this invention is to provide a kind of various oil well cements that are applicable to, can compatibility with other polymer class admixture, effectively improve the preparation method of the oil well cement dispersant of cementing quality, convenient construction.
Technical scheme of the present invention is completed as follows, a kind of preparation method of oil well cement dispersant, it is characterized in that: it adopts following material component, each component is respectively by weight: 55 parts of deionized waters, 28.1 parts of 2-acrylamide-2-methylpro panesulfonic acids, 1.7 parts, vinylformic acid, 0.6 part of MALEIC ANHYDRIDE, 2 parts of NVPs, 5.6 parts of Virahols, 5.6 parts, sodium hydroxide, 1.4 parts of ammonium persulphates, its preparation method is; 1. first 43.8 parts of deionized waters are dropped in reactor; 2. add 28.1 parts of 2-acrylamide-2-methylpro panesulfonic acids, 0.6 part of MALEIC ANHYDRIDE, 5.6 parts of Virahols, 2 parts of NVPs, 1.7 parts of vinylformic acid successively in reactor under whipped state; The concentration of 3. getting again 5.6 parts of deionized waters and 5.6 parts of sodium hydroxide preparations is 50% sodium hydroxide solution, and adding reactor to regulate pH value is 4-4.5, and temperature rises to 70 ℃; 4. drip the initiator that is made into by 5.6 parts of deionized waters and 1.4 minutes ammonium persulphates in whipped state downhill reaction still, the control temperature of reaction is no more than 90 ℃, time for adding 30 minutes; 5. control temperature of reaction in 80 ± 1 ℃ of scopes after dripping initiator, from dropping, start to clock, the reaction times is 120 minutes; 6. reacted feed liquid is emitted and carry out drying, pulverize and to get final product.It adopts following material component, each component is respectively by weight: 55 parts of deionized waters, 28.1 parts of 2-acrylamide-2-methylpro panesulfonic acids, 2 parts, vinylformic acid, 0.6 part of MALEIC ANHYDRIDE, 2 parts of NVPs, 5.6 parts of Virahols, 5.6 parts, sodium hydroxide, 1.4 parts of ammonium persulphates, its preparation method is: 1. first 43.8 parts of deionized waters and 28.1 parts of 2-acrylamide-2-methylpro panesulfonic acids, 2 parts of vinylformic acid, 0.6 part of MALEIC ANHYDRIDE, 2 parts of NVPs, 5.6 parts of Virahols are mixed with solution A; 2. be that 4-4.5 gets it half drops into reactor with the pH value that 11.2 parts of concentration are 50% sodium hydroxide solution regulator solution A, start to stir, be warming up to 70 ℃; 3. be mixed with initiator solution with 5.6 parts of deionized waters and 1.4 parts of ammonium persulphates in addition standby; 4. drip simultaneously second half solution A and initiator solution in reactor, control temperature of reaction and be no more than 90 ℃, time for adding is no more than 30 minutes; 5. initiator solution and solution A dropwise rear constant temperature to 80 ± 1 ℃ continuation reaction, certainly drip and start to clock reaction 120 minutes; 6. reacted feed liquid is emitted and carry out drying and pulverize getting final product.
Dispersion agent of the present invention is applicable to various oil well cements, and can with multiple admixture compatibility, improve the rheological property of grout.
Embodiment:
Material component of the present invention is as follows: 2-acrylamide-2-methylpro panesulfonic acid, vinylformic acid, MALEIC ANHYDRIDE, Virahol, NVP, deionized water, sodium hydroxide, ammonium persulphate, its preparation method has two kinds, is described with two embodiment respectively.
Embodiment 1,1. first with deionized water, to make respectively concentration be that 50% sodium hydroxide solution 80 ㎏ and concentration are that 20% ammonium persulfate solution 50 ㎏ are standby; 2. deionized water 311 ㎏ are put in reactor and start to stir; 3. drop into 2-acrylamide-2-methylpro panesulfonic acid 200 ㎏, MALEIC ANHYDRIDE 4 ㎏, Virahol 40 ㎏, NVP 14 ㎏, vinylformic acid 12 ㎏ successively in reactor water again; 4. be 4-4.5 with the pH value that concentration is solution in 50% sodium hydroxide solution conditioned reaction still; 5. the concentration that dropping is prepared by ammonium persulphate and deionized water in temperature 70 C, whipped state downhill reaction still is 20% initiator solution 50 ㎏, controls temperature of reaction and is no more than 90 ℃, time for adding 30 minutes; 6. drip initiator complete after, keep constant temperature to be 80 ± 1 ℃ and continue reaction, coreaction is 120 minutes from dripping initiator; 7. reacted feed liquid emitted drying, pulverize and to be finished product.
Embodiment 2,1. get 2-acrylamide-2-methylpro panesulfonic acid 200 ㎏, MALEIC ANHYDRIDE 4 ㎏, Virahol 40 ㎏, NVP 14 ㎏, vinylformic acid 12 ㎏ and deionized water 311 ㎏ and be mixed with solution A; 2. be 4-4.5 with the pH value that concentration is 50% sodium hydroxide solution 80 ㎏ regulator solution A, take out solution A 330.5kg and drop in reactor to start to stir and be warming up to 70 ℃; 3. in addition compound concentration to be that 20% ammonium persulfate solution 50 ㎏ make initiator standby; 4., to the initiator solution that drips simultaneously remaining solution A 330.5kg and prepared in reactor, control temperature of reaction and be no more than 90 ℃, time for adding 30 minutes; 5. initiator and solution A dropwise rear constant temperature to 80 ± 1 ℃ continuation reaction, certainly drip and start to react 120 minutes; Reacted feed liquid is emitted drying, pulverized and to get product.
The product that the present invention produces has high temperature resistant, and the advantage that salt resistance is good, be used in conjunction with applicable to various oil well cements and various admixture.
Claims (2)
1. the preparation method of an oil well cement dispersant, it is characterized in that: it adopts following material component, each component is respectively by weight: 55 parts of deionized waters, 28.1 parts of 2-acrylamide-2-methylpro panesulfonic acids, 1.7 parts, vinylformic acid, 0.6 part of MALEIC ANHYDRIDE, 2 parts of NVPs, 5.6 parts of Virahols, 5.6 parts, sodium hydroxide, 1.4 parts of ammonium persulphates, its preparation method is; 1. first 43.8 parts of deionized waters are dropped in reactor; 2. add 28.1 parts of 2-acrylamide-2-methylpro panesulfonic acids, 0.6 part of MALEIC ANHYDRIDE, 5.6 parts of Virahols, 2 parts of NVPs, 1.7 parts of vinylformic acid successively in reactor under whipped state; The concentration of 3. getting again 5.6 parts of deionized waters and 5.6 parts of sodium hydroxide preparations is 50% sodium hydroxide solution, and adding reactor to regulate pH value is 4-4.5, and temperature rises to 70 ℃; 4. drip the initiator that is made into by 5.6 parts of deionized waters and 1.4 minutes ammonium persulphates in whipped state downhill reaction still, the control temperature of reaction is no more than 90 ℃, time for adding 30 minutes; 5. control temperature of reaction in 80 ± 1 ℃ of scopes after dripping initiator, from dropping, start to clock, the reaction times is 120 minutes; 6. reacted feed liquid is emitted and carry out drying, pulverize and to get final product.
2. the preparation method of an oil well cement dispersant, it is characterized in that: it adopts following material component, each component is respectively by weight: 55 parts of deionized waters, 28.1 parts of 2-acrylamide-2-methylpro panesulfonic acids, 2 parts, vinylformic acid, 0.6 part of MALEIC ANHYDRIDE, 2 parts of NVPs, 5.6 parts of Virahols, 5.6 parts, sodium hydroxide, 1.4 parts of ammonium persulphates, its preparation method is: 1. first with 43.8 parts of deionized waters and 28.1 parts of 2-acrylamide-2-methylpro panesulfonic acids, 2 parts of vinylformic acid, 0.6 part MALEIC ANHYDRIDE, 2 parts of NVPs, 5.6 a part Virahol is mixed with solution A, 2. be that 4-4.5 gets it half drops into reactor with the pH value that 11.2 parts of concentration are 50% sodium hydroxide solution regulator solution A, start to stir, be warming up to 70 ℃, 3. be mixed with initiator solution with 5.6 parts of deionized waters and 1.4 parts of ammonium persulphates in addition standby, 4. drip simultaneously second half solution A and initiator solution in reactor, control temperature of reaction and be no more than 90 ℃, time for adding is no more than 30 minutes, 5. initiator solution and solution A dropwise rear constant temperature to 80 ± 1 ℃ continuation reaction, certainly drip and start to clock reaction 120 minutes, 6. reacted feed liquid is emitted and carry out drying and pulverize getting final product.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109942304A (en) * | 2019-03-11 | 2019-06-28 | 山东天汇研磨耐磨技术开发有限公司 | A kind of dual-purpose dispersing agent of ceramic grinding disperse and grind aid and its manufacturing method |
| CN110078525A (en) * | 2019-03-19 | 2019-08-02 | 山东天汇研磨耐磨技术开发有限公司 | A kind of the ceramic grinding dual-purpose dispersing agent of grinding aid drop dehydration and its manufacturing method |
Citations (3)
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|---|---|---|---|---|
| US5105885A (en) * | 1990-11-20 | 1992-04-21 | Bj Services Company | Well cementing method using a dispersant and fluid loss intensifier |
| CN102225988A (en) * | 2011-03-24 | 2011-10-26 | 中国海洋石油总公司 | Dispersant used in polymer cement mortar for oil field cementing, and preparation method thereof |
| CN102241490A (en) * | 2011-04-20 | 2011-11-16 | 天津科力奥尔工程材料技术有限公司 | Oil well cement dispersant and preparation method thereof |
-
2013
- 2013-08-09 CN CN2013103437909A patent/CN103387640A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5105885A (en) * | 1990-11-20 | 1992-04-21 | Bj Services Company | Well cementing method using a dispersant and fluid loss intensifier |
| CN102225988A (en) * | 2011-03-24 | 2011-10-26 | 中国海洋石油总公司 | Dispersant used in polymer cement mortar for oil field cementing, and preparation method thereof |
| CN102241490A (en) * | 2011-04-20 | 2011-11-16 | 天津科力奥尔工程材料技术有限公司 | Oil well cement dispersant and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 张浩等: "新型油井水泥分散剂 PC-F42L 的研制与应用", 《钻井液与完井液》, vol. 29, no. 4, 30 July 2012 (2012-07-30), pages 55 - 58 * |
| 李晓岚等: "三元共聚物油井水泥降失水剂的室内研究", 《钻井液与完井液》, vol. 30, no. 1, 30 January 2013 (2013-01-30), pages 56 - 59 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109942304A (en) * | 2019-03-11 | 2019-06-28 | 山东天汇研磨耐磨技术开发有限公司 | A kind of dual-purpose dispersing agent of ceramic grinding disperse and grind aid and its manufacturing method |
| CN110078525A (en) * | 2019-03-19 | 2019-08-02 | 山东天汇研磨耐磨技术开发有限公司 | A kind of the ceramic grinding dual-purpose dispersing agent of grinding aid drop dehydration and its manufacturing method |
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Application publication date: 20131113 |