CN85109485A - Sesbania gum wellbore flushing liquid prescription and compound method - Google Patents
Sesbania gum wellbore flushing liquid prescription and compound method Download PDFInfo
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- CN85109485A CN85109485A CN 85109485 CN85109485A CN85109485A CN 85109485 A CN85109485 A CN 85109485A CN 85109485 CN85109485 CN 85109485 CN 85109485 A CN85109485 A CN 85109485A CN 85109485 A CN85109485 A CN 85109485A
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- sesbania gum
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Abstract
The sesbania gum wellbore flushing liquid is filled a prescription and compound method, belongs to the compound method field of the aqueous fluid that contains organic or mineral compound.The sesbania gum wellbore flushing liquid is a basic raw material with the sesbania gum powder, is dissolved in the water, and it is formulated to add inorganic salt (for example zinc chloride and Repone K) solution and the sodium hydroxide solution contain zinc, potassium ion, and also available borax replaces containing the inorganic salt of zine ion.The sesbania gum wellbore flushing liquid has low, good shear thinning effect of solid load and rheological characteristics, fall that the dehydration anti sloughing effectiveness is good, the anticalcium magnesium salts is invaded characteristics such as ability is strong, and lubrication drag reduction is effective, and can improve drilling speed, reduces cost.
Description
The invention belongs to the compound method field (CO9 K7/02) of the aqueous fluid that contains organic or mineral compound.
Sesbania gum is mainly used in industries such as oil, mining at present, for example on petroleum industry, as preparation aqueous fracturing fluid and down-hole temporary plugging agent, in mining industry, as the jelling agent of slurry explosive.Up to the present, still find no report and the patent that is used for the wellbore flushing liquid aspect about sesbania gum both at home and abroad.There is a patent (GB1542960) about the no clay wellbore flushing liquid of usefulness guar gum, sulfonated lignin and magnesium oxide preparation in Britain.The composition of guar gum, structure and performance and sesbania gum are similar.Task of the present invention is with the novel no clay wellbore flushing liquid of sesbania gum preparation.
The sesbania gum wellbore flushing liquid is to be basic raw material with the sesbania gum powder, it is formulated to add additives such as the soluble inorganic salt (for example zinc chloride and Repone K) contain zinc, potassium ion and sodium hydroxide, and also available borax (sodium tetraborate) replacement contains the zine ion inorganic salt.General prescription is: sesbania gum powder 2-10 kilogram/cubic meter, zinc chloride 0.1-1.5 kilogram/cubic meter, sodium hydroxide 0.1-1.2 kilogram/cubic meter, Repone K 0-50 kilogram/cubic meter.Performance: apparent viscosity 5.5-47 centipoise, plastic viscosity 5-22 centipoise.Yield value 4.8-240 dynes/cm, fluid loss 6-30 milliliter/30 minutes, potential of hydrogen 7-12.
Prescription for general bad ground: sesbania gum powder 2-6 kilogram/cubic meter, zinc chloride 0.4-0.8 kilogram/cubic meter, sodium hydroxide 0.3-0.7 kilogram/cubic meter.Performance: apparent viscosity 8.5-24.5 centipoise, plastic viscosity 8-14 centipoise, yield value 4.8-100.8 dynes/cm, fluid loss 7.5-16 millimeter/30 minutes, potential of hydrogen 8-9.
Prescription for water-sensitive strata: sesbania gum powder 4-8 kilogram/cubic meter, zinc chloride 0.4-0.8 kilogram/cubic meter, sodium hydroxide 0.3-0.6 kilogram/cubic meter, Repone K 10-30 kilogram/cubic meter, performance: apparent viscosity 16.5-35.5 centipoise, plastic viscosity 11-19 centipoise, yield value 52.8-158.4 dynes/cm, fluid loss 7-8.2 milliliter/30 minutes, potential of hydrogen 8-9.
Prescription for loose crushing and quicksand gravel stratum: sesbania gum powder 4-8 kilogram/cubic meter, borax 0.05-0.4 kilogram/cubic meter, sodium hydroxide 0.05-0.1 kilogram/cubic meter, formaldehyde 0.3-0.5 kilogram/cubic meter.Performance: washing fluid is gel, and funnel viscosity does not flow, fluid loss 8-9 milliliter/30 minutes, potential of hydrogen 8-9.
Compound method:
1. with preparations such as sesbania gum powder, zinc chloride (perhaps borax) and sodium hydroxide.
Earlier sesbania gum powder is scattered in the clear water while stirring equably, stirs half an hour, treat promptly to can be used as washing fluid base slurry after its dissolving.Zinc chloride and sodium hydroxide are dissolved in respectively in a small amount of clear water, make it become liquor zinci chloridi and sodium hydroxide solution respectively.Earlier liquor zinci chloridi is added in the base slurry, stir treated its abundant mixing in 5 minutes after, add sodium hydroxide solution while stirring, stir and can be made into the sesbania gum wellbore flushing liquid after making its mixing in 2 minutes.If need add Repone K, as long as in the above-mentioned sesbania gum wellbore flushing liquid that has been made into, add mixing by prescription.Replace zinc chloride preparation sesbania gum wellbore flushing liquid with borax, step is same as described above, but need to add formol at last, for preventing the sesbania gum powder conglomeration, can adopt sieve or injector to dust, impel its dispersion, also can earlier sesbania gum powder be scattered in certain organic solvent (for example alcohol), thin up is to desired concn then.
2. with preparations such as sesbania gum-zinc chloride powder mix and sodium hydroxide.
Earlier, be made into sesbania gum-zinc chloride powder mix sesbania gum powder and zinc chloride uniform mixing, then this powder mix while stirring homodisperse be dissolved in the water, stir half an hour, treat that promptly can be used as the washing fluid base after it dissolves starches.Sodium hydroxide is dissolved in a small amount of clear water becomes sodium hydroxide solution, in the base slurry, add sodium hydroxide solution while stirring, stir and treated in 2 minutes promptly to be made into the sesbania gum wellbore flushing liquid behind its mixing.If in the time of need adding Repone K, in the sesbania gum washing fluid that has been made into, add the Repone K mixing and get final product by prescription.In like manner, do not disperse, can adopt sieve, powder sprayer or disperse the method preparation wellbore flushing liquid of thin up with organic solvent for preventing the powder mix conglomeration.
The sesbania gum wellbore flushing liquid has suitability is strong, solid load is low, good shear thinning effect and rheological characteristics, fall that the dehydration anti sloughing effectiveness is good, the anticalcium magnesium salts invades that ability is strong, lubrication drag reduction is effective, the easy characteristics such as accents of stable performance, and have the raising drilling speed, advantage such as reduce cost.
Embodiment: a coal measure strata, mainly form by mud stone, siltstone, tonstein, gravel bed etc., loose cementation, poor stability, water sensitivity is strong, easily produces hydration swelling, causes piece, cave-in accident etc.The sesbania gum wellbore flushing liquid prescription that creeps into employing on this stratum is: sesbania gum powder 2-6 kilogram/cubic meter, zinc chloride 0.5-1 kilogram/cubic meter, sodium hydroxide 0.5-1 kilogram/cubic meter, Repone K 10-30 kilogram/cubic meter.Creep into this washing fluid, successfully get the deep-well that a bite reaches 1102 meters deeply at this coal measure strata.
Claims (7)
1, sesbania gum wellbore flushing liquid prescription and compound method, it is basic raw material with the sesbania gum powder, uniform dissolution is characterized in that adding the soluble inorganic salt and the sodium hydroxide that contain zinc, potassium ion in water, be made into wellbore flushing liquid.
2, described according to claim 1, it is characterized in that adding these two kinds of soluble inorganic salts of zinc chloride and Repone K, prescription is sesbania gum powder 2-10 kilogram/cubic meter, zinc chloride 0.1-1.5 kilogram/cubic meter, sodium hydroxide 0.1-1.2 kilogram/cubic meter, Repone K 0-50 kilogram/cubic meter.
3, according to claim 1,2 described, it is characterized in that the sesbania gum washing fluid prescription that is applicable to general bad ground is, sesbania gum powder 2-6 kilogram/cubic meter, zinc chloride 0.4-0.8 kilogram/cubic meter, sodium hydroxide 0.3-0.7 kilogram/cubic meter.
4, according to claim 1,2 described, the prescription that it is characterized in that being applicable to the sesbania gum washing fluid of water-sensitive strata is sesbania gum powder 4-8 kilogram/cubic meter, zinc chloride 0.4-0.8 kilogram/cubic meter, sodium hydroxide 0.3-0.6 kilogram/cubic meter, Repone K 10-30 kilogram/cubic meter.
5, according to claim 1,2 described, it is characterized in that earlier the sesbania gum powder homodisperse being dissolved in the clear water, be made into the base slurry, again zinc chloride and sodium hydroxide are dissolved in respectively in a small amount of clear water, successively liquor zinci chloridi and sodium hydroxide solution are added in the base slurry, add Klorvess Liquid at last, whole process for preparation needs evenly to stir.
6, according to claim 1,2 described, it is characterized in that earlier sesbania gum and zinc chloride being made into powder mix, this powder mix homodisperse is dissolved in the clear water, add sodium hydroxide solution and Klorvess Liquid then successively, whole process for preparation needs evenly stirring.
7, sesbania gum wellbore flushing liquid prescription and compound method, it is basic raw material with the sesbania gum powder, be dissolved in the water, add borax (sodium tetraborate) sodium hydroxide and formaldehyde solution successively, it is characterized in that being applicable to loose and quicksand gravel stratum washing fluid prescription is, sesbania gum powder 4-8 kilogram/cubic meter, borax 0.05-0.4 kilogram/cubic meter, sodium hydroxide 0.05-0.1 kilogram/cubic meter, formaldehyde 0.3-0.5 kilogram/cubic meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN198585109485A CN85109485B (en) | 1985-12-23 | 1985-12-23 | Formulation and prepn. of sesbania washing liquid for drilling well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN198585109485A CN85109485B (en) | 1985-12-23 | 1985-12-23 | Formulation and prepn. of sesbania washing liquid for drilling well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85109485A true CN85109485A (en) | 1987-07-01 |
| CN85109485B CN85109485B (en) | 1988-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN198585109485A Expired CN85109485B (en) | 1985-12-23 | 1985-12-23 | Formulation and prepn. of sesbania washing liquid for drilling well |
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| CN (1) | CN85109485B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838528A (en) * | 2009-03-17 | 2010-09-22 | 大连百奥泰科技有限公司 | Environment-friendly and bio-available green fracturing fluid system |
| CN101948684A (en) * | 2010-09-29 | 2011-01-19 | 中联煤层气有限责任公司 | Novel active water fracturing fluid for fracturing of coal bed gas well |
-
1985
- 1985-12-23 CN CN198585109485A patent/CN85109485B/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838528A (en) * | 2009-03-17 | 2010-09-22 | 大连百奥泰科技有限公司 | Environment-friendly and bio-available green fracturing fluid system |
| CN101838528B (en) * | 2009-03-17 | 2013-11-20 | 大连百奥泰科技有限公司 | Environment-friendly and bio-available green fracturing fluid system |
| CN101948684A (en) * | 2010-09-29 | 2011-01-19 | 中联煤层气有限责任公司 | Novel active water fracturing fluid for fracturing of coal bed gas well |
Also Published As
| Publication number | Publication date |
|---|---|
| CN85109485B (en) | 1988-06-01 |
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