Method for rapid testing hydrogen sulfide content in drilling fluid

A detection method and technology of hydrogen sulfide, which are applied in the direction of material analysis by observing the influence of chemical indicators, and analysis by chemical reaction of materials, etc., can solve the problems of cumbersome detection procedures and long detection time, and improve drilling efficiency. Efficiency, drilling cost saving effect

Inactive Publication Date: 2013-07-31
中国石油集团川庆钻探工程有限公司川东钻探公司
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Problems solved by technology

The disadvantage of the prior art is that the detection procedure is cumbersome and the detection time is as long as 120 minutes

Method used

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  • Method for rapid testing hydrogen sulfide content in drilling fluid

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Embodiment Construction

[0018] a, make detection test paper: the circular test paper that is 9mm in diameter is immersed in the lead acetate Pb (CH 3 COO) 2 solution, soak for 24 hours, take out and spread out to dry;

[0019] b. Preparation of sodium sulfide standard solution: dissolve 5mg, 10mg, 20mg, 30mg, 50mg, 80mg and 100mg of sodium sulfide into distilled water respectively, and prepare the contents of 5mg / L, 10mg / L, 20mg / L and 30mg respectively / L, 50mg / L, 80mg / L and 100mg / L sodium sulfide standard solution;

[0020] c. Make a standard color spot card

[0021] Take 2.5ml of sodium sulfide standard solution respectively in the reaction bottle, add 22.5ml of distilled water to make diluted sodium sulfide standard solution;

[0022] Put the detection test paper obtained in step a into the reaction bottle cap, put the diluted sodium sulfide standard solution in the reaction bottle respectively, add the composition containing NaHCO 3 , BaCl 2 and masking agent of polyvinylpyrrolidone 3g, 2-oc...

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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 [0001] The invention relates to a method for detecting hydrogen sulfide content in drilling fluid. Background technique [0002] The detection method of hydrogen sulfide content in drilling fluid is a routine detection method of drilling fluid. In the prior art, the detection method of hydrogen sulfide content in drilling fluid adopts the iodometric method. The disadvantage of the prior art is that the detection procedure is cumbersome and the detection time is as long as 120 minutes. Contents of the invention [0003] The technical problem to be solved is to provide a rapid detection method for the hydrogen sulfide content in the drilling fluid. The technical solution to solve its technical problems includes the steps of making test paper, preparing sodium sulfide standard solution, making standard stain cards and detecting the hydrogen sulfide content of drilling fluid. [0004] a, make detection test paper: the circular test paper that is 9mm in diame...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/78
Inventor 何涛颜娟唐润平胡琴玉
Owner 中国石油集团川庆钻探工程有限公司川东钻探公司
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