CN102313733B - Method for rapid testing hydrogen sulfide content in drilling fluid - Google Patents
Method for rapid testing hydrogen sulfide content in drilling fluid Download PDFInfo
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- CN102313733B CN102313733B CN 201010217311 CN201010217311A CN102313733B CN 102313733 B CN102313733 B CN 102313733B CN 201010217311 CN201010217311 CN 201010217311 CN 201010217311 A CN201010217311 A CN 201010217311A CN 102313733 B CN102313733 B CN 102313733B
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- drilling fluid
- test paper
- color spot
- hydrogen sulfide
- solution
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Abstract
The invention relates to a method for rapid testing the hydrogen sulfide content in drilling fluid, relating to a method for testing the hydrogen sulfide content in the drilling fluid and aiming to solve the technical problem of providing a method for rapidly testing the hydrogen sulfide content in the drilling fluid. In the technical scheme, the method comprises the following steps: preparation of test paper for testing, preparation of standard sodium sulfide solution, preparation of a standard stain card, and testing of the hydrogen sulfide content in the drilling fluid. The method can be applied in testing the content of hydrogen sulfide in the drilling fluid. The invention has the beneficial effects that the content of hydrogen sulfide in the drilling fluid can be tested rapidly. Compared with the prior art, the testing time can be reduced to 10 minutes from 120 minutes, the drilling efficiency can be increased significantly, the drilling cost can be saved, and the method can be promoted and applied in the drilling industry.
Description
Technical field
The present invention relates to the detection method of hydrogen sulfide content in a kind of drilling fluid.
Background technology
Hydrogen sulfide content detection method in the drilling fluid is a kind of drilling fluid conventional sense method.Prior art drilling fluid hydrogen sulfide content detection method adopts iodimetric titration.The weak point of prior art is that trace routine is loaded down with trivial details, reaches 120 minutes detection time.
Summary of the invention
Technical matters to be solved is that the method for quick of hydrogen sulfide content in a kind of drilling fluid is provided.Solve the technical scheme of its technical matters, comprise to make and detect test paper, formulating vulcanization sodium standard solution, production standard color spot card and detect drilling fluid hydrogen sulfide content step,
A, making detect test paper: with diameter is the circular test paper of 9mm, and the immersion weight percent is 10% lead acetate Pb (CH
3COO)
2In the solution, soaked 24 hours, take out to shakeout and dry;
B, formulating vulcanization sodium standard solution: respectively with the sodium sulphide of 5mg, 10mg, 20mg, 30mg, 50mg, 80mg and 100mg, dissolve in the distilled water, being mixed with content respectively is the sodium sulphide standard solution of 5mg/L, 10mg/L, 20mg/L, 30mg/L, 50mg/L, 80mg/L and 100mg/L;
C, production standard color spot card
Get respectively in the 2.5ml sodium sulphide standard solution reaction cartridge bottle, add distilled water 22.5ml, make dilution sodium sulphide standard solution;
Step a gained is detected test paper pack in the reaction bottle cap, in reaction bulb, be respectively charged into dilution sodium sulphide standard solution, add its constituent and comprise NaHCO
3, BaCl
2Screening agent 3g, sec-n-octyl alcohol CH with polyvinylpyrrolidone
3CH (CH
2)
5CH
3OH defoamer 0.1ml, and percentage by volume concentration is 50% sulfuric acid 1ml, covers tight bottle cap, rocks, and makes it produce bubble; Treat no longer to produce bubble after 5 minutes, take off the detection test paper, make series of standards color spot card from bottle cap;
The weight proportion of the constituent of screening agent is NaHCO
3: BaCl
2: polyvinylpyrrolidone=1: 1: 1.Its effect is, to shelter the reaction of object sulphuric dioxide in wherein composition and the drilling fluid, generate complex compound or precipitation, sulfur dioxide concentration is reduced, do not disturb or reduce to disturb the course of reaction of object sulfuretted hydrogen to be measured, in order to avoid the accuracy of hydrogen sulfide content is measured in influence;
D, detection drilling fluid hydrogen sulfide content
With the 2.5ml drilling fluid to be measured reaction bulb of packing into, add distilled water 22.5ml, make dilution solution to be measured;
Put into the detection test paper in the reaction bottle cap, the dilution solution to be measured of packing into adds its constituent and comprises NaHCO
3, BaCl
2With screening agent 3g, the defoamer sec-n-octyl alcohol 0.1ml of polyvinylpyrrolidone and percentage by volume concentration be 50% sulfuric acid 1ml, cover tight bottle cap, slightly rock, make it produce bubble; Treat no longer to produce bubble after 5 minutes, take out test paper;
At this moment, contained lead acetate reaction generates vulcanized lead on sulfuretted hydrogen in the solution to be measured and the detection test paper, presents color spot,
Pb (CH
3COO)
2+ H
2S=PbS (precipitation)+2CH
3COOH
With the speckle contrast on color spot on the test paper and the standard color spot card, with the pairing numerical value of color spot on the close standard color spot card of color spot,, take advantage of 10 with this numerical value as the numerical value of sulfuretted hydrogen in the corresponding drilling fluid, be hydrogen sulfide content in the solution to be measured.
Beneficial effect: the present invention is applied to detect the content of sulfuretted hydrogen in the drilling fluid.Beneficial effect is, can the fast detecting drilling fluid in the content of sulfuretted hydrogen, compared with the prior art, shortened to about 10 minutes detection time from 120 minutes, significantly improve drilling efficiency, saves drilling cost, can apply in the drilling well industry.
Description of drawings
Fig. 1 is the standard color spot card figure by step c made of the present invention.Among Fig. 1,1 is 5mg/L color spot card, and 2 is 10mg/L color spot card, and 3 is 20mg/L color spot card, and 4 is 30mg/L color spot card, and 5 for being 50mg/L color spot card, and 6 is 80mg/L color spot card, and 7 is 100mg/L color spot card.
Embodiment
A, making detect test paper: with diameter is the circular test paper of 9mm, and the immersion weight percent is 10% lead acetate Pb (CH
3COO)
2In the solution, soaked 24 hours, take out to shakeout and dry;
B, formulating vulcanization sodium standard solution: respectively with the sodium sulphide of 5mg, 10mg, 20mg, 30mg, 50mg, 80mg and 100mg, dissolve in the distilled water, being mixed with content respectively is the sodium sulphide standard solution of 5mg/L, 10mg/L, 20mg/L, 30mg/L, 50mg/L, 80mg/L and 100mg/L;
C, production standard color spot card
Get respectively in the 2.5ml sodium sulphide standard solution reaction cartridge bottle, add distilled water 22.5ml, make dilution sodium sulphide standard solution;
Step a gained is detected test paper pack in the reaction bottle cap, in reaction bulb, be respectively charged into dilution sodium sulphide standard solution, add constituent and comprise NaHCO
3, BaCl
2Screening agent 3g, sec-n-octyl alcohol CH with polyvinylpyrrolidone
3CH (CH
2)
5CH
3OH defoamer 0.1ml and percentage by volume concentration are 50% sulfuric acid 1ml, cover tight bottle cap, rock, and make it produce bubble; Treat no longer to produce bubble after 5 minutes, take off the detection test paper, make series of standards color spot card from bottle cap;
The weight proportion of the constituent of screening agent is NaHCO
3: BaCl
2: polyvinylpyrrolidone=1: 1: 1.
D, detection drilling fluid hydrogen sulfide content
With the 2.5ml drilling fluid to be measured reaction bulb of packing into, add distilled water 22.5ml, make dilution solution to be measured;
Put into the detection test paper in the reaction bottle cap, the dilution solution to be measured of packing into adds constituent and comprises NaHCO
3, BaCl
2With screening agent 3g, the defoamer sec-n-octyl alcohol 0.1ml of polyvinylpyrrolidone and percentage by volume concentration be 50% sulfuric acid 1ml, cover tight bottle cap, slightly rock, make it produce bubble; Treat no longer to produce bubble after 5 minutes, take out test paper;
At this moment, contained lead acetate reaction generates vulcanized lead on sulfuretted hydrogen in the solution to be measured and the detection test paper, presents color spot,
Pb (CH
3COO)
2+ H
2S=PbS (precipitation)+2CH
3COOH
With the speckle contrast on color spot on the test paper and the standard color spot card, with the pairing numerical value of color spot on the close standard color spot card of color spot,, take advantage of 10 with this numerical value as the numerical value of sulfuretted hydrogen in the corresponding drilling fluid, be hydrogen sulfide content in the solution to be measured.
Claims (1)
1. the detection method of hydrogen sulfide content in the drilling fluid is characterized in that, comprises the steps:
A, make to detect test paper: with diameter is the circular test paper of 9mm, immerses weight percent and is in 10% the lead acetate solution, soaks 24 hours, and taking-up is shakeout and dried;
B, formulating vulcanization sodium standard solution: respectively with the sodium sulphide of 5mg, 10mg, 20mg, 30mg, 50mg, 80mg and 100mg, dissolve in the distilled water, being mixed with content respectively is the sodium sulphide standard solution of 5mg/L, 10mg/L, 20mg/L, 30mg/L, 50mg/L, 80mg/L and 100mg/L;
C, production standard color spot card
Get 2.5ml variable concentrations sodium sulphide standard solution respectively and pack in each reaction bulb, add distilled water 22.5ml, make the dilution sodium sulphide standard solution of variable concentrations;
Step a gained is detected test paper pack in each reaction bottle cap, in the dilution sodium sulphide standard solution reaction bulb of variable concentrations is housed, adds its constituent and comprise NaHCO respectively
3, BaCl
2With screening agent 3g, the sec-n-octyl alcohol defoamer 0.1ml of polyvinylpyrrolidone and percentage by volume concentration be 50% sulfuric acid 1ml, cover tight bottle cap, rock, make it produce bubble; Treat no longer to produce bubble after 5 minutes, take off the detection test paper, make series of standards color spot card from bottle cap;
D, detection drilling fluid hydrogen sulfide content
With the 2.5ml drilling fluid to be measured reaction bulb of packing into, add distilled water 22.5ml, make dilution solution to be measured;
In the reaction bottle cap, put into the detection test paper, in the reaction bulb that dilution solution to be measured is housed, add its constituent and comprise NaHCO
3, BaCl
2With screening agent 3g, the defoamer sec-n-octyl alcohol 0.1ml of polyvinylpyrrolidone and percentage by volume concentration be 50% sulfuric acid 1ml, cover tight bottle cap, slightly rock, make it produce bubble; Treat no longer to produce bubble after 5 minutes, take out test paper;
At this moment, contained lead acetate reaction generates vulcanized lead on sulfuretted hydrogen in the solution to be measured and the detection test paper, presents color spot,
Pb (CH
3COO)
2+ H
2S=PbS (precipitation)+2CH
3COOH
With the speckle contrast on color spot on the test paper and the standard color spot card, with the pairing numerical value of color spot on the close standard color spot card of color spot,, take advantage of 10 with this numerical value as the numerical value of sulfuretted hydrogen in the corresponding drilling fluid, be hydrogen sulfide content in the solution to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010217311 CN102313733B (en) | 2010-07-05 | 2010-07-05 | Method for rapid testing hydrogen sulfide content in drilling fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010217311 CN102313733B (en) | 2010-07-05 | 2010-07-05 | Method for rapid testing hydrogen sulfide content in drilling fluid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102313733A CN102313733A (en) | 2012-01-11 |
| CN102313733B true CN102313733B (en) | 2013-07-31 |
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| CN 201010217311 Expired - Fee Related CN102313733B (en) | 2010-07-05 | 2010-07-05 | Method for rapid testing hydrogen sulfide content in drilling fluid |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102768255B (en) * | 2012-07-20 | 2014-07-16 | 青岛普仁仪器有限公司 | Ion chromatography-amperometric method for detecting sulfide content in oilfield drilling mud |
| CN104568940B (en) * | 2015-01-29 | 2017-02-22 | 国家纳米科学中心 | Method for detecting hydrogen sulfide gas based on nanocrystalline celluloses |
| CN112444514A (en) * | 2020-11-19 | 2021-03-05 | 江苏安泰安全技术有限公司 | Detection test paper based on metal-organic framework and preparation method thereof |
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| US5139329A (en) * | 1990-08-30 | 1992-08-18 | Nippon Petroleum Refining Co., Ltd. | Standard samples and methods of instrumental measurement of saybolt color of petroleum products using said samples |
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| WO2009120563A1 (en) * | 2008-03-25 | 2009-10-01 | The Lubrizol Corporation | Marker dyes for petroleum products |
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-
2010
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Patent Citations (6)
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|---|---|---|---|---|
| US5139329A (en) * | 1990-08-30 | 1992-08-18 | Nippon Petroleum Refining Co., Ltd. | Standard samples and methods of instrumental measurement of saybolt color of petroleum products using said samples |
| CN1648642A (en) * | 2005-01-28 | 2005-08-03 | 武汉科技大学 | Molybdate radical ion and nitrite radical ion concentration test card and its preparing method |
| CN101029872A (en) * | 2006-11-30 | 2007-09-05 | 白莉 | Liquid for testing hydrogen sulfide and its colorimetric testing tube |
| WO2009120563A1 (en) * | 2008-03-25 | 2009-10-01 | The Lubrizol Corporation | Marker dyes for petroleum products |
| CN101419172A (en) * | 2008-09-25 | 2009-04-29 | 上海锦隆生物科技有限公司 | A kind of ethanol content detecting reagent in saliva |
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|---|
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| 崔九思等.《亚甲基兰比色法测定大气中硫化氢的稳定计研究及方法改进》.《卫生研究》.1981,94-104. |
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