CN101054511A - High resistivity filtrate reducer and preparing method thereof - Google Patents
High resistivity filtrate reducer and preparing method thereof Download PDFInfo
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- CN101054511A CN101054511A CN 200610073066 CN200610073066A CN101054511A CN 101054511 A CN101054511 A CN 101054511A CN 200610073066 CN200610073066 CN 200610073066 CN 200610073066 A CN200610073066 A CN 200610073066A CN 101054511 A CN101054511 A CN 101054511A
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Abstract
Fluid loss additive with a high resistivity and its producing method belong to oil industry drill fluid treating agent technical field, which contain following materials according to weight proportion: 30-60 shares of lignite, 3-8 shares of sodium hydroxidesodium hydroxide, 7-13 shares of formaldehyde, 6-10 shares of maleic anhydride or propylene oxide, 7-15 shares of initiating agent, 7-11 shares of sulfonating agent, 5-9 shares of non-ionic surface active agent. The invention also provides the producing method of the fluid loss additive with a high resistivity. The fluid loss additive with a high resistivity can effectively reduce the slurry fluid-loss, effectively increase the resistivity of the drilling liquid system during ensuring solid free state of the drilling slurry system, test the well smoothly, save the cost and reduce the environment pollution and it can replace the operation of adding oil into the drilling liquid to improve the resistivity.
Description
Technical field
The invention belongs to petroleum industry additive for drilling fluid technical field, being specifically related to a kind of is the fluid loss agent with high resistivity that the raw material complexing forms with brown coal etc.
Background technology
In petroleum drilling operation, need to add fluid loss agent, to form the drilling mud system of no solid phase, reduce dehydration, the protection oil reservoir is not subjected to the pollution of mud, improves drilling speed, reduces drilling cost.Last century, the seventies U.S. once reported by synthetic polymer filtrate reducers such as phenol, urea, formaldehyde, sulphite and other modified component trimeric cyanamide, Whitfield's ointment, phenylformic acid, phthalic acids, yet, synthetic method and straight polymer add the water management condensation course because existing, this condensation course is difficult to control, and have the shortcoming of cost height, heat-resisting property difference, in fact be not widely used.Last century the eighties, it is raw material that the valchovite filtrate reducer for drilling fluid of China's development is mainly separated polyacrylonitrile with sulfomethylation sodium humate, sulfonated-pheno-formoldehyde resin and sulphur methyl, through with the extracting of brown coal normal pressure, sedimentation deslagging, evaporation concentration, again through sulfonation and carry out graft polymerization with resol and obtain.Development along with oil exploration industry, it is the fluid loss agent of main raw material with brown coal or sodium humate that China has developed multiple, and mostly being with humic acid active intermediate, the multiple polymers of water-soluble polypropylene nitrile ammonium salt and/or water-soluble carbon amide resins is the polymkeric substance of feedstock production.
All contain a large amount of inorganic salt inhibitor compositions in the employed fluid loss agent of petroleum drilling at present, this causes the resistivity of whole drilling fluid on the low side, and when completion logging, various logging equipments can't normally use.Adopt during the typical oilfield drilling operation and in drilling fluid, add the resistivity that 3～5 tons of former wet goods measures improve drilling fluid, guarantee logging operation.So not only increase drilling cost, wasted valuable petroleum resources, simultaneously also can serious environment pollution, cause the processing cost of waste drilling fluid to raise.And the research direction of existing fluid loss agent mainly is the problem that solves organic fluid loss agent high temperature resistant property difference, will not improve the resistivity of fluid loss agent as emphasis.
Summary of the invention
The purpose of this invention is to provide a kind of petroleum drilling fluid loss agent, solved the low shortcoming of existing fluid loss agent resistivity with higher resistivity, excellent property.
The technical solution used in the present invention is as follows:
A kind of high resistivity filtrate reducer, it is characterized in that it comprises following materials of weight proportions composition: brown coal 30～60 weight parts, sodium hydroxide 3～8 weight parts, formaldehyde 7～13 weight parts, MALEIC ANHYDRIDE or propylene oxide 6～10 weight parts, initiator 7～15 weight parts, sulphonating agent 7～11 weight parts, nonionogenic tenside 5～9 weight parts.
Described initiator comprises ammonium persulphate, Potassium Persulphate or Potassium peroxide.
Described sulphonating agent comprises Sodium Pyrosulfite, S-WAT, potassium sulfite, sodium bisulfite or Potassium hydrogen sulfite.
Described ionic surfactant pack is drawn together polyoxyethylene carboxylic ester or polyoxyethylene polyoxypropylene propylene glycol.
The preparation method of this high resistivity filtrate reducer, it is characterized in that the sodium hydroxide of the brown coal of 30～60 weight parts and 3～8 weight parts is put into water through 110～140 ℃ of high temperature steamings 2～3 hours, cryoprecipitation then, get supernatant liquor and put into retort, the formaldehyde that adds 7～13 weight parts, the sulphonating agent of 7～11 weight parts, be warmed up to 140～150 ℃, reacted 2～3 hours, lower the temperature then and add the additive MALEIC ANHYDRIDE of 6～10 weight parts or the initiator of propylene oxide and 7～15 weight parts, insulation was carried out complex reaction 1.5～2.5 hours at 70～90 ℃, cool to the nonionogenic tenside that adds 5～9 weight parts below 40 ℃ at last, stir, drying obtains granular high resistivity filtrate reducer.
Initiator described in this preparation method comprises ammonium persulphate, Potassium Persulphate or Potassium peroxide.
Sulphonating agent described in this preparation method comprises Sodium Pyrosulfite, S-WAT, potassium sulfite, sodium bisulfite or Potassium hydrogen sulfite.
Ionic surfactant pack described in this preparation method is drawn together polyoxyethylene carboxylic ester or polyoxyethylene polyoxypropylene propylene glycol.
Polyoxyethylene carboxylic ester's class nonionogenic tenside is conventional commercially available nonionogenic tenside, is widely used in all trades and professions.For example polyoxyethylene sorbitol acid anhydride oleic acid ester (tween 80), polyoxyethylene sorbitol acid anhydride stearate (polysorbate60) or the like.
Brown coal can be divided into young brown coal and old brown coal two classes, and its density is less, no adhesion, and contain the humic acids of different quantities, oxygen content of coal content height often reaches about 15～30%.Chemical reactivity is strong, poor heat stability.The content of humic acid of young brown coal is higher than old brown coal, and the brown coal that the present invention adopts can be that old brown coal also can be young brown coal, the preferred high young brown coal of content of humic acid.The high resistivity filtrate reducer of the present invention preparation is the mixture of high-molecular complex and nonionogenic tenside, and it contains the component of inorganic salts of minute quantity, effective raising drilling fluid leak-off efficient falls and in, effectively improved the resistivity of drilling fluid.
Brown coal and sodium hydroxide generate sodium humate through behind the high temperature steaming, contain most humic acid activeconstituents through in the supernatant liquor of post precipitation, after carrying out sulfonation, under action of evocating, carry out complex reaction with MALEIC ANHYDRIDE or propylene oxide again and generate the organic macromolecule complex compound with formaldehyde, sulphonating agent.After this reaction product and nonionogenic tenside mix, make the powdery finished product through spraying drying or other drying meanss.
Beneficial effect of the present invention is, this high resistivity filtrate reducer is effectively reducing the mud dehydration, when guaranteeing the no solid state shape of drilling mud system, effectively improved the resistivity of drilling fluid system, well surveying is carried out smoothly, add the operation that oil improves resistivity in the alternative drilling fluid, save cost and minimizing pollution environment.
Embodiment
Embodiment 1 chooses raw material by following weight proportion: Yunnan Province produces young brown coal 47.2kg, sodium hydroxide 5.8kg, formaldehyde 10.3kg, MALEIC ANHYDRIDE 8.7kg, sulphonating agent Sodium Pyrosulfite 9.6kg, initiator ammonium persulfate 11.0kg, non-ionic surfactant polyoxyethylene sorbitan tristearate (polysorbate60) 6.4kg.
Brown coal and sodium hydroxide are put in the 120kg water, boiling is 2～3 hours under 110～140 ℃ high temperature, reaction generates sodium humate, cryoprecipitation, get supernatant liquor then and put into retort, add formaldehyde and sulphonating agent Sodium Pyrosulfite, be warmed up to 140～150 ℃ and carried out sulfonation reaction 2～3 hours, cool to 40 ℃ then, add MALEIC ANHYDRIDE and ammonium persulfate initiator, insulation was carried out complex reaction 1.5～2.5 hours in 70～90 ℃ of scopes, obtain containing the mixture of organic macromole complex compound.Cool to 30 ℃, add the non-ionic surfactant polyoxyethylene sorbitan tristearate then, stir and mixed in 30 minutes, storage tank is put in mixing, carry out spraying drying, obtain granular this high resistivity filtrate reducer.
The performance index of this high resistivity filtrate reducer are as follows: outward appearance is a black particle, and mass percent concentration is the resistivity 〉=13 Ω m of 1% the aqueous solution, API≤8ml, and HTHP≤25ml is with viscosity number≤20 of ZNN-06 type rotary viscosity design determining.Adding this, to fall filtering agent be resistivity 〉=14.7 Ω m of 3% o'clock to the mass percent concentration in the mud, API≤7ml, HTHP≤23ml, the viscosity number of mensuration≤15.
Drilling mud with Shandong Province Shengli Oil Field 0567# oil well is the experiment drilling fluid, and the adding mass percent concentration is this high resistivity filtrate reducer of 3% in mud, and the resistivity of measuring with drilling fluid resistivity measurement instrument is 14.7 Ω m.It is the fluid loss control agent of HNPH that model is produced in the Yanqing, Beijing that adds mass percent concentration and be 6% oil and 5% in another group mud, and the performance data of mensuration is that resistivity is 6.4 Ω m.
Embodiment 2 chooses raw material by following weight proportion: Yunnan Province produces young brown coal 60.0kg, sodium hydroxide 3.0kg, formaldehyde 13.0kg, propylene oxide 10.0kg, sulphonating agent S-WAT 7.0kg, initiator potassium persulfate 7.0kg, non-ionic surfactant polyoxyethylene sorbitan oleate (tween 80) 5.0kg.
Brown coal and sodium hydroxide are put in the 60kg water, boiling is 2～3 hours under 110～140 ℃ high temperature, reaction generates sodium humate, and cryoprecipitation is got supernatant liquor then and put into retort, add formaldehyde and sulphonating agent S-WAT, be warmed up to 140～150 ℃ and carried out sulfonation reaction 2～3 hours, cool to 40 ℃ then, add propylene oxide and Potassium Persulphate initiator, insulation was carried out complex reaction 1.5～2.5 hours in 70～90 ℃ of scopes, obtain containing the mixture of organic macromole complex compound.Cool to 30 ℃, add the non-ionic surfactant polyoxyethylene sorbitan oleate then, stir and mixed in 30 minutes, storage tank is put in mixing, carry out spraying drying, obtain granular this high resistivity filtrate reducer.
This high resistivity filtrate reducer can effectively improve the resistivity of drilling fluid and have the good filtration effect that falls after measured.
Embodiment 3 chooses raw material by following weight proportion: Yunnan Province produces young brown coal 30.0kg, sodium hydroxide 8.0kg, formaldehyde 17.0kg, propylene oxide 6.0kg, sulphonating agent sodium bisulfite 11.0kg, non-ionic surfactant polyoxyethylene polyoxypropylene propylene glycol 9.0kg.
Brown coal and sodium hydroxide are put in the 100kg water, boiling is 2～3 hours under 110～140 ℃ high temperature, reaction generates sodium humate, cryoprecipitation, get supernatant liquor then and put into retort, add formaldehyde and sulphonating agent sodium bisulfite, be warmed up to 140～150 ℃ and carried out sulfonation reaction 2～3 hours, cool to 40 ℃ then, add propylene oxide and Potassium peroxide initiator, insulation was carried out complex reaction 1.5～2.5 hours in 70～90 ℃ of scopes, obtain containing the mixture of organic macromole complex compound.Cool to 40 ℃, add non-ionic surfactant polyoxyethylene polyoxypropylene propylene glycol then, stir and mixed in 30 minutes, storage tank is put in mixing, carry out spraying drying, obtain granular this high resistivity filtrate reducer.
This high resistivity filtrate reducer can effectively improve the resistivity of drilling fluid and have the good filtration effect that falls after measured.
Embodiment 4 chooses raw material by following weight proportion: Yunnan Province produces young brown coal 50.0kg, sodium hydroxide 6.0kg, formaldehyde 13.0kg, MALEIC ANHYDRIDE 10.0kg, sulphonating agent Potassium hydrogen sulfite 7.0kg, initiator potassium persulfate 10.0kg, non-ionic surfactant polyoxyethylene sorbitan oleate (tween 80) 6.0kg.
Brown coal and sodium hydroxide are put in the 200kg water, boiling is 2～3 hours under 110～140 ℃ high temperature, reaction generates sodium humate, cryoprecipitation, get supernatant liquor then and put into retort, add formaldehyde and sulphonating agent Potassium hydrogen sulfite, be warmed up to 140～150 ℃ and carried out sulfonation reaction 2～3 hours, cool to 40 ℃ then, add MALEIC ANHYDRIDE and Potassium Persulphate initiator, insulation was carried out complex reaction 1.5～2.5 hours in 70～90 ℃ of scopes, obtain containing the mixture of organic macromole complex compound.Cool to 20 ℃, add the non-ionic surfactant polyoxyethylene sorbitan oleate then, stir and mixed in 30 minutes, storage tank is put in mixing, carry out spraying drying, obtain granular this high resistivity filtrate reducer.
This high resistivity filtrate reducer can effectively improve the resistivity of drilling fluid and have the good filtration effect that falls after measured.
Claims (8)
1. high resistivity filtrate reducer, it is characterized in that it comprises following materials of weight proportions composition: brown coal 30～60 weight parts, sodium hydroxide 3～8 weight parts, formaldehyde 7～13 weight parts, MALEIC ANHYDRIDE or propylene oxide 6～10 weight parts, initiator 7～15 weight parts, sulphonating agent 7～11 weight parts, nonionogenic tenside 5～9 weight parts.
2. high resistivity filtrate reducer according to claim 1 is characterized in that described initiator comprises ammonium persulphate, Potassium Persulphate or Potassium peroxide.
3. high resistivity filtrate reducer according to claim 1 is characterized in that described sulphonating agent comprises Sodium Pyrosulfite, S-WAT, potassium sulfite, sodium bisulfite or Potassium hydrogen sulfite.
4. high resistivity filtrate reducer according to claim 1 is characterized in that described ionic surfactant pack draws together polyoxyethylene carboxylic ester or polyoxyethylene polyoxypropylene propylene glycol.
5. the preparation method of the described high resistivity filtrate reducer of claim 1, it is characterized in that the sodium hydroxide of the brown coal of 30～60 weight parts and 3～8 weight parts is put into water through 110～140 ℃ of high temperature steamings 2～3 hours, cryoprecipitation then, get supernatant liquor and put into retort, the formaldehyde that adds 7～13 weight parts, the sulphonating agent of 7～11 weight parts, be warmed up to 140～150 ℃, reacted 2～3 hours, lower the temperature then and add the additive MALEIC ANHYDRIDE of 6～10 weight parts or the initiator of propylene oxide and 7～15 weight parts, insulation was carried out complex reaction 1.5～2.5 hours at 70～90 ℃, cool to the nonionogenic tenside that adds 5～9 weight parts below 40 ℃ at last, stir, drying obtains high resistivity filtrate reducer.
6. the preparation method of high resistivity filtrate reducer according to claim 5 is characterized in that described initiator comprises ammonium persulphate, Potassium Persulphate or Potassium peroxide.
7. the preparation method of high resistivity filtrate reducer according to claim 5 is characterized in that described sulphonating agent comprises Sodium Pyrosulfite, S-WAT, potassium sulfite, sodium bisulfite or Potassium hydrogen sulfite.
8. the preparation method of high resistivity filtrate reducer according to claim 5 is characterized in that described ionic surfactant pack draws together polyoxyethylene carboxylic ester or polyoxyethylene polyoxypropylene propylene glycol.
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| CN 200610073066 CN101054511A (en) | 2006-04-12 | 2006-04-12 | High resistivity filtrate reducer and preparing method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103013456A (en) * | 2012-12-22 | 2013-04-03 | 中国石油大学(华东) | High-temperature-resistant viscosity-reduction filtrate reducer for drilling fluid and preparation method of filtrate reducer |
| CN103881668A (en) * | 2014-03-18 | 2014-06-25 | 陶荣燕 | Aluminum sulfate-enhanced stratum protective agent |
| CN109401738A (en) * | 2018-12-07 | 2019-03-01 | 中科宝辰(北京)科技有限公司 | A kind of high-temperature-resistant high-salt water-base drilling fluid fluid loss additive and preparation method thereof |
| CN111676002A (en) * | 2020-06-22 | 2020-09-18 | 中国石油天然气集团有限公司 | Filtrate reducer for biodiesel water-in-drilling fluid and preparation method thereof |
-
2006
- 2006-04-12 CN CN 200610073066 patent/CN101054511A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103013456A (en) * | 2012-12-22 | 2013-04-03 | 中国石油大学(华东) | High-temperature-resistant viscosity-reduction filtrate reducer for drilling fluid and preparation method of filtrate reducer |
| CN103881668A (en) * | 2014-03-18 | 2014-06-25 | 陶荣燕 | Aluminum sulfate-enhanced stratum protective agent |
| CN103881668B (en) * | 2014-03-18 | 2016-09-21 | 陶荣燕 | Aluminum sulfate strengthens stratum protection agent |
| CN109401738A (en) * | 2018-12-07 | 2019-03-01 | 中科宝辰(北京)科技有限公司 | A kind of high-temperature-resistant high-salt water-base drilling fluid fluid loss additive and preparation method thereof |
| CN109401738B (en) * | 2018-12-07 | 2021-01-01 | 中科宝辰(北京)科技有限公司 | High-temperature-resistant high-salt water-based drilling fluid filtrate reducer and preparation method thereof |
| CN111676002A (en) * | 2020-06-22 | 2020-09-18 | 中国石油天然气集团有限公司 | Filtrate reducer for biodiesel water-in-drilling fluid and preparation method thereof |
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