CN1030246A - The high-temperature high-pressure drilling fluid auxiliary agent - Google Patents
The high-temperature high-pressure drilling fluid auxiliary agent Download PDFInfo
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- CN1030246A CN1030246A CN 87105030 CN87105030A CN1030246A CN 1030246 A CN1030246 A CN 1030246A CN 87105030 CN87105030 CN 87105030 CN 87105030 A CN87105030 A CN 87105030A CN 1030246 A CN1030246 A CN 1030246A
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- auxiliary agent
- drilling fluid
- humic acid
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- sulfonation
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Abstract
The invention belongs to drilling fluid additive, particularly the preparation method of high-temperature high-pressure drilling fluid auxiliary agent and this auxiliary agent.This auxiliary agent contains sulfonation nitro humic acid the inner complex mixture, particularly periodic table of chemical element IVB family of multiple metal and the sulfonation nitro humic acid inner complex mixture of VIII family element.Chemically and physically be combined into the mixture of multiple firm atomic group between these inner complexs.This auxiliary agent still has good dissemination (deflocculation) under high temperature more than 300 ℃ and earth deep-level high pressure, fall dehydration effect, clay swelling restraining effect and high capability of anti-salt and thermostability.Can be used for preparing high-temperature high-pressure drilling fluids such as recover petroleum, Sweet natural gas, underground heat.
Description
The invention belongs to the aqueous clay based drilling fluid auxiliary agent, particularly water-clay-based high-temperature high-pressure drilling fluid auxiliary agent and manufacture method thereof.
Employed water clay base mud drilling fluid in modern drilling technique, the common employing of clay mainly contains the wilkinite of montmorillonite, and the auxiliary agent that adjusting bentonite type mud is adopted, as the complex compound of English Patent 1276411 propositions with sulfonated lignite and transition metal formation, Japanese Patent 53-35875 proposes to make dispersion agent or the agent with fixed attention of loosing with the Tripyrophosphoric acid of an alkali metal salt mixture of humic acids and mineral bitumen and employing at present, Sodium salts humic acids, nitro khm, chrome lignosulfonate, iron-chromium lignin sodium sulfonate etc.These material poor heat stability obviously descend 180 ℃ of performances, can not use more than 220 ℃.Under the deep-well High Temperature High Pressure, or shallow well but because of more bit change or drilling outfit break down when stopping boring, drilling fluid stops circulating temperature and raises drilling fluid self gelationization.The clear 61(1986 of day disclosure special permission communique)-9487 exist environmental pollution problem at iron-chromium lignin sodium sulfonate and humic acids chromium, propose to make diluent of drilling liquid with the inner complex of nitro humic acid and sodium lignosulfonate and zirconium, nickel, iron, (at 120 ℃ of aging 16 hours postcooling to 30 ℃) though survey its performance and be significantly improved than the former, when temperature during above 220 ℃ thermostability obviously descend.The drilling fluid additive that United States Patent (USP) 4572789 adopts nitro humic acid and sodium lignosulfonate mixture and titanium, zirconium, hafnium reactant salt to make, its thermostability improves a lot than the former, it is good to survey its impact of performance in aging 16 hours with the mud of its preparation down at 240 ℃, but when being higher than 240 ℃, performance obviously descends.
The purpose of this invention is to provide and a kind ofly can make drilling fluid under the high pressure of 300 ℃ of high temperature and earth deep layer, still have good dispersiveness, (deflocculation), fall dehydration effect, clay swelling restraining effect and high capability of anti-salt and thermostability.
The present invention is a kind of water-clay-based high-temperature high-pressure drilling fluid auxiliary agent, it is characterized in that: it mainly is to comprise the sulfonation nitro humic acid inner complex that one or more ions by metallic element in IV B family in the periodictable and the VIII family constitute, and these inner complexs further generate the mixture of certain or certain several metal sulfonation nitro-humic acid sodiums with the reaction of sulfonation nitro-humic acid sodium.The preparation method of this drilling fluid additive is that the coal that contains humic acids is nitrated with nitric acid oxidation, and make catalyzer with the vitriol oil, it is characterized in that also adopting zinc sulfate to make catalyzer, the nitro humic acid of generation behind low-temperature sulfonation again with periodictable in metal ion reaction in IV B family and the VIII family.
It mainly comprises the sulfonation nitro humic acid inner complex that is made of one or more metal ions in IV B family in the periodictable and the VIII family element high-temperature high-pressure drilling fluid auxiliary agent of the present invention, and these inner complexs further generate the mixture of one or several metal sulfonation nitro-humic acid sodium with the reaction of sulfonation nitro-humic acid sodium.
The concise and to the point flow process of the preparation method of auxiliary agent of the present invention is as follows:
1, the preparation of nitro humic acid
Raw material of the present invention is to contain humic acids to be not less than 20% brown coal, peat, weathered coal, brown coal preferably, through pulverizing its granularity 40～100 orders, preferably 100 orders its usage quantity of the catalyzer vitriol oil be raw material heavy 1～5%, be preferably 2% and its usage quantity of zinc sulfate be heavy 0.1～1% being preferably under 0.5% situation about existing of raw material, it is nitrated to be preferably 40% nitric acid oxidation with 10～68%, the consumption of nitric acid (in 100%) is heavy 0.2～2 times of raw material, preferably 0.7 times.Nitrated temperature is controlled at 30～90 ℃, is preferably 45 ℃.Reacted 10 minutes～8 hours, and be preferably 1 hour, look the concentration of nitric acid difference and definite reaction times.The concentration of nitric acid height reacts needed time weak point.The desirable reaction product Infrared spectroscopy of the control of reaction end, the neutralization of also available 2% sodium hydroxide is PH=9, with the filtration of four flint glass F sand stamen funnels, insolubles less than 15% for reacting completely.Product is washed with water to PH=3,, get nitro humic acid to remove nitric acid.
2, the preparation of sulfonation nitro humic acid
With nitro humic acid with 20～60%, the most handy 40%NaOH transfers pH value to 9, add the sodium bisulfite solid, its consumption be nitro humic acid heavy 1～10% be preferably 7%, 80～160 ℃ of temperature of reaction are preferably 100 ℃, react 0.5～10 hour, be preferably 2 hours, products therefrom is the sulfonation nitro humic acid.
3, the preparation of high-temperature high-pressure drilling fluid auxiliary agent
The vitriol or the nitrate that in the sulfonation nitro humic acid, add one of periodictable IV B family element titanium, zirconium, hafnium, or muriate or oxyhydroxide, four water titanium sulfates preferably, its consumption be the sulfonation nitro humic acid heavy 10～20%, be preferably 10%.Can also add periodictable VIII family elemental iron, cobalt, one of nickel or herd the right nobelium of the lame Zi danger Ke of cricket Zi position snail earthworm shelf wholesale an ancient spear F wash with watercolours and consider outstanding～5% single nickel salt to be worth doing, preferably 3% and 0～5% be preferably 3% ferrous sulfate best results, at 70～95 ℃ best 85 ℃, react 1～3 hour best 1 hour, being preferably 40% sodium hydroxide adjustment pH value with 20～60% then is 9～9.5, best PH=9, with them at 60～95 ℃ preferably 85 ℃, reacted 0.5～2 hour, be preferably 1 hour, with the products therefrom spraying drying, or, can obtain the product of powdered 105 ℃ of following dryings.
Drilling fluid additive of the present invention can still have good dispersiveness or flocculation resistance under high temperature more than 300 ℃ and earth deep-level high pressure, clay swelling restraining effect, fall dehydration effect and high capability of anti-salt and thermostability.The high-temperature high-pressure drilling fluid that can be used for preparing recover petroleum, Sweet natural gas underground heat and be housed in subterranean other natural fluid.
The invention will be further described to utilize following examples:
Example 1:
The relation of nitrated generation nitro humic acid of brown coal oxidation and nitric acid dosage
Annotate: brown coal contain humic acids 20% Jilin Su Lan and produce.
Example 2:
The preparation of sulfonation nitro humic acid and the relation of temperature of reaction
Example 3:
Sulfonation nitro humic acid with the present invention's preparation prepares the high-temperature high-pressure drilling fluid auxiliary agent:
Sulfonation nitro humic acid 100 weight parts
Four water titanium sulfates, 10 weight parts
Nickel sulfate hexahydrate 2 weight parts
Iron vitriol 2 weight parts
Water 200 weight parts
Thorough mixing reacted 1 hour down at 85 ℃, transferred PH=9 with 40% aqueous sodium hydroxide solution, reacted 1 hour down at 85 ℃, was dried to product under 105 ℃.
Example 4:
Adopt drilling fluid additive of the present invention, the prescription of preparation high-temperature high-pressure drilling fluid:
Drilling fluid additive dry powder: 3%
Wilkinite: 4,5%
The travertine of pulverizing: 4,0%
Water: 88,5%
Above-mentioned substance was stirred 10 minutes, transfer PH=9,5 with sodium hydroxide
Example 5: the drilling fluid additive of different components and the The performance test results that under 300 ℃, wore out 16 hours thereof:
Annotate: every kind of prescription water 200 grams
Annex 1
One, the apparent viscosity of mud, yield value and gel-strength are pressed API RP 13B, 9th Edition, the 13B processing method that Pages 5 and 6(American Petroleum Institute (API) are recommended, the 9th edition, the 5th and 6 page) middle method test of setting forth.
Two, NL Baroid is pressed in high-temperature circulation test and High Temperature High Pressure loss-of-coolant experiment (LOCE), Drilling Mud Date Book, and Section 900, the method test that (drilling mud databook chapter 9) introduced.
Claims (2)
1, a kind of water-clay-based high-temperature high-pressure drilling fluid auxiliary agent, it is characterized in that: it mainly is to comprise the sulfonation nitro humic acid inner complex that one or more ions by metallic element in IV B family in the periodictable and the VIII family constitute, and these inner complexs further generate the mixture of certain or certain several metal sulfonation nitro-humic acid sodiums with the reaction of sulfonation nitro-humic acid sodium.
2, the preparation method of water clay-based high-temperature high-pressure drilling fluid auxiliary agent is that the coal that contains humic acids is nitrated with nitric acid oxidation, and make catalyzer with the vitriol oil, it is characterized in that also adopting zinc sulfate to make catalyzer, the nitro humic acid of generation behind low-temperature sulfonation again with periodictable in metal ion reaction in IV B family and the VIII family.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87105030 CN1015548B (en) | 1987-07-01 | 1987-07-01 | Additive for high temp. and high pressure drilling fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87105030 CN1015548B (en) | 1987-07-01 | 1987-07-01 | Additive for high temp. and high pressure drilling fluid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1030246A true CN1030246A (en) | 1989-01-11 |
| CN1015548B CN1015548B (en) | 1992-02-19 |
Family
ID=4815119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87105030 Expired CN1015548B (en) | 1987-07-01 | 1987-07-01 | Additive for high temp. and high pressure drilling fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1015548B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105885808A (en) * | 2016-05-17 | 2016-08-24 | 重庆市天泽钻井材料有限责任公司 | Chromium-free sulfonated lignite for drilling fluid |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060147C (en) * | 1996-07-08 | 2001-01-03 | 中国科学院山西煤炭化学研究所 | High concentrative non-flocculant humic acids complexed nutrient liquid and preparation thereof |
| JP3801418B2 (en) * | 1999-05-14 | 2006-07-26 | 株式会社Ｎｅｏｍａｘ | Surface treatment method |
-
1987
- 1987-07-01 CN CN 87105030 patent/CN1015548B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105885808A (en) * | 2016-05-17 | 2016-08-24 | 重庆市天泽钻井材料有限责任公司 | Chromium-free sulfonated lignite for drilling fluid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1015548B (en) | 1992-02-19 |
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