CN1211731A - Automatic continuous detection instrument for well drilling liquid chlorine ion - Google Patents
Automatic continuous detection instrument for well drilling liquid chlorine ion Download PDFInfo
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- CN1211731A CN1211731A CN 98117977 CN98117977A CN1211731A CN 1211731 A CN1211731 A CN 1211731A CN 98117977 CN98117977 CN 98117977 CN 98117977 A CN98117977 A CN 98117977A CN 1211731 A CN1211731 A CN 1211731A
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- well drilling
- liquid chlorine
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Abstract
An automatic continuous detector for chlorine ions in drilling liquid, used in petroleum geologic exploration, is composed of computer, conversion control box and measuring probe. The ion electrode and reference electrode in probe are connected via amplifier and output interface to conversion control box connected to computer. Its advantages include automatic continuous detection, and high precision and reliability.
Description
The present invention relates to utilize in the petroleum geology exploration technology of the automatic acquisition testing well drilling liquid chlorine ion of electrochemical methods content, is a kind of automatic continuous detection instrument for well drilling liquid chlorine ion that uses in the petroleum geology exploration well logging.
Monitoring and record to drilling fluid in the petroleum geology exploration are the effective means of reflection formation oil, water distribution situation, the well drilling liquid chlorine ion well logging is an important content of geological logging work, is an important approach finding oil-water-layer, interpretation and evaluation oil-water-layer.At present; it mainly is to adopt artificial sample and common chemical titration analysis that on-the-spot chlorion detects; owing to be simply equipped with the working method of artificial experience type; the data that is obtained is subjected to artificial factor to a certain extent; comparability; systematicness is not strong; in addition; because be to be interrupted sampling, data is discontinuous, integrality is not enough; be difficult to guarantee the representativeness of sample; objective can not intactly reflect well drilling liquid chlorine ion in drilling process with the well depth situation of change, make the application of data be subjected to certain restriction, more do not reach the high reliability of log data; comparability; therefore, need develop to high-precision automatic by manual work.
The object of the invention is to overcome the deficiency of manual detection, and a kind of electrochemical analysis and data acquisition process technology utilized is provided, and can accurately reflect a kind of automatic continuous detection instrument for well drilling liquid chlorine ion of well drilling liquid chlorine ion content objective continuously, automatically.
The present invention adopts following technical scheme:
Automatic continuous detection instrument for well drilling liquid chlorine ion is made up of computing machine 1, conversion and control case 2, measuring sonde 3, ion electrode 8 in the measuring sonde 3 is connected with conversion and control case 2 with output interface 4 through amplifying circuit 5 with contrast electrode 9, conversion and control case 2 other ends link to each other with microcomputer 1, there is scraping blade 10 measuring sonde 3 ends, and are close to ion electrode 8 and contrast electrode 9 rotations.
The present invention also adopts following technical scheme:
Ion electrode 8 is by ultra tiny AgCl, Ag
2S and hydrophobic nature macromolecule powder mix, the AgCl filamentary silver of contrast electrode 9 and full close KCl solution and be loaded in the pipe, at the port of pipe with polytetrafluoroethylene powder and K
2SO
4Mix the shutoff of compacting 2-3mm thin slice.The side that scraping blade 10 is close to electrode 8,9 is to be made by macromolecular material.The A/D converter that is connected with computing machine 1 with electrode 8,9 is arranged, in addition and control scraping blade 10 rotations and the motor 6 that stops, the power circuit that A/D converter is connected in the conversion and control case 2.
The present invention also adopts the other technologies scheme:
Ion electrode 8 component ratios are AgCl 85-70%, Ag
2S 20-10%, hydrophobic nature macromolecule 10-5%.The shutoff thin slice component ratio teflon 85-70% of contrast electrode 9, K
2SO
430-15%.The hydrophobic nature macromolecule of ion electrode 8 can be Polyvinylchloride, teflon, poly-trifluoro-ethylene.Motor 6 in the measuring sonde 3 is connected with scraping blade 10 through drive link 7.
The present invention can improve the technical merit that the well drilling liquid chlorine ion well logging is analyzed, realize the automatic continuous detecting of well drilling liquid chlorine ion, objective, accurate evaluating data is provided, improve reliability, practicality and the comparability of well drilling liquid chlorine ion log data, provide reliable basis for finding oil-water-layer and carrying out individual well multilayer oil-water-layer interpretation and evaluation.
Accompanying drawing of the present invention is the automatic continuous detection instrument for well drilling liquid chlorine ion structural representation.
Below in conjunction with accompanying drawing in detail the embodiment of the invention is described in detail.
Automatic continuous detection instrument for well drilling liquid chlorine ion is based on the potentiometric analysis principle, utilizes electrode potential and concentration relationship to measure the concentration of measured object, and indicator electrode and contrast electrode form chemical cell in solution, and the electromotive force of measuring battery can calculate content.The present invention adopts chlorion to select electrode and contrast electrode to insert in the drilling fluid, tries to achieve chlorinity in the drilling fluid by measuring electromotive force.Because drilling fluid density is big, viscosity is high, the coefficient of diffusion of inorganic ions in this class medium is extremely low, more medium and small hundreds of times than water, dielectric viscosity is big in addition, and the material on adhesive electrodes surface is difficult to upgrade.Particularly the contrast electrode surface is that hydrophilic porous material is formed, and the initial drilling fluid that adheres to is difficult on the chlorine ion electrode surface, this situation is arranged also with the flowing of drilling fluid.
Realize the true fast measuring of chlorine ion electrode, the present invention adopts following gordian technique:
Automatic continuous detection instrument for well drilling liquid chlorine ion is by computing machine 1, conversion and control case 2, measuring sonde 3 is formed, ion electrode 8 in the measuring sonde 3 is connected amplifying circuit 5 with contrast electrode 9, the light current that amplifying circuit 5 produces electrode is pressed signal to amplify and is sent into conversion and control case 2 through output interface 4, conversion and control case 2 other ends link to each other with microcomputer 1, the A/D converter that is connected with computing machine 1 with electrode is arranged in the conversion and control case 2, A/D converter converts voltage analog signal to computing machine 1 discernible digital signal, finish the calculating display result by computing machine 1, reflect that in real time chloride ion content is with the situation of change of well depth in the drilling fluid.In conversion and control case 2, also have motor 6, the A/D converter power supply circuit supplying with 10 rotations of control scraping blade and stop.There is scraping blade 10 measuring sonde 3 ends, and are close to ion electrode 8 and contrast electrode 9 rotations, allow it constantly scrape, to wipe at electrode surface, force drilling fluid to be brought in constant renewal on its surface.Motor 6 in the measuring sonde 3 is connected with scraping blade 10 through drive link 7, and the side that scraping blade 10 is close to electrode is to be made by macromolecular material, and material can be macromolecular material blend such as silicon rubber tygon.Ion electrode 8 is by ultra tiny AgCl, Ag
2S and hydrophobic nature macromolecule powder mix, the adding of the macromolecule micro mist of hydrophobic nature strengthens the hydrophobic nature of electrode surface, particularly in the mud, the tendency of non-specific adsorption particle obviously reduces, and overcomes drilling fluid in the strong absorption affinity in its surface, the mechanical removal and the material that are of value to the surface upgrade.The AgCl filamentary silver of contrast electrode 9 and full close KCl solution and be loaded in the pipe, at the port of pipe with polytetrafluoroethylene powder and K
2SO
4Mix the shutoff of compacting 2-3mm thin slice, this material surface hydrophobic possesses certain intensity, and good ionic conduction passage is arranged.Ion electrode 8 component ratios are AgCl 85-70%, Ag
2S 20-10%, hydrophobic nature macromolecule 10-5%.The shutoff thin slice component ratio teflon 85-70% of contrast electrode 9, K
2SO
430-15%.The hydrophobic nature macromolecule of ion electrode 8 can be Polyvinylchloride, teflon, poly-trifluoro-ethylene.
Computing machine 1 of the present invention adopts ordinary PC, with the bonded channel of computing machine is to adopt commercially available data acquisition board ADAM4017 (precision 0.1% ± 5W bandwidth 13.1Hz, temperature is floated 25ppm/ ℃), the data communication plate adopts ADAM4051 (RS232 joins with computing machine), software adopts ADVANTAOH, and Genia and Oringe realize data acquisition, show functions such as storage, processing, printing.A/D converter in the conversion and control case 2 mainly adopts 18 A/D4017 of high-resolution (Taiwan product), the amplifying circuit 5 main ultralow bias current amplifier INZ116 (U.S.'s product) that adopt.
Claims (9)
1. automatic continuous detection instrument for well drilling liquid chlorine ion, form by microcomputer (1), conversion and control case (2), measuring sonde (3), it is characterized in that: the ion electrode (8) in the measuring sonde (3) is connected with conversion and control case (2) with output interface (4) through amplifying circuit (5) with contrast electrode (9), and conversion and control case (2) other end links to each other with microcomputer (1); There is scraping blade (10) measuring sonde (3) end, and is close to ion electrode (8) and contrast electrode (9) rotation.
2. automatic continuous detection instrument for well drilling liquid chlorine ion according to claim 1 is characterized in that: ion electrode (8) is by ultra tiny AgCl, Ag
2S and hydrophobic nature macromolecule powder mix.
3. automatic continuous detection instrument for well drilling liquid chlorine ion according to claim 1 is characterized in that: the AgCl filamentary silver of contrast electrode (9) and full close KCl solution and be loaded in the pipe, at the port of pipe with polytetrafluoroethylene powder and K
2SO
4Mix the shutoff of compacting 2-3mm thin slice.
4. automatic continuous detection instrument for well drilling liquid chlorine ion according to claim 1 is characterized in that: the side that scraping blade (10) is close to electrode (8,9) is to be made by macromolecular material.
5. automatic continuous detection instrument for well drilling liquid chlorine ion according to claim 1, it is characterized in that: the A/D converter that is connected with computing machine (1) with electrode (8,9) is arranged in the conversion and control case (2), also have and to rotate with control scraping blade (10) and the motor (6) that stops, the power circuit that A/D converter is connected.
6. according to claim 1,2 described automatic continuous detection instrument for well drilling liquid chlorine ion, it is characterized in that: ion electrode (8) component ratio is AgCl85-70%, Ag
2S 20-10%, hydrophobic nature macromolecule 10-5%.
7. according to claim 1,3 described automatic continuous detection instrument for well drilling liquid chlorine ion, it is characterized in that: the shutoff thin slice component ratio teflon 85-70% of contrast electrode (9), K
2SO
430-15%
8. automatic continuous detection instrument for well drilling liquid chlorine ion according to claim 2 is characterized in that: the hydrophobic nature macromolecule of ion electrode (8) can be Polyvinylchloride, teflon, poly-trifluoro-ethylene.
9. automatic continuous detection instrument for well drilling liquid chlorine ion according to claim 1 is characterized in that: the motor (6) in the measuring sonde (3) is connected with scraping blade (10) through drive link (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98117977 CN1211731A (en) | 1998-09-11 | 1998-09-11 | Automatic continuous detection instrument for well drilling liquid chlorine ion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98117977 CN1211731A (en) | 1998-09-11 | 1998-09-11 | Automatic continuous detection instrument for well drilling liquid chlorine ion |
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| Publication Number | Publication Date |
|---|---|
| CN1211731A true CN1211731A (en) | 1999-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 98117977 Pending CN1211731A (en) | 1998-09-11 | 1998-09-11 | Automatic continuous detection instrument for well drilling liquid chlorine ion |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569111A (en) * | 2013-10-27 | 2015-04-29 | 中国石油化工集团公司 | Online measurement device and method for ionic concentration of drilling fluid |
| CN110243912A (en) * | 2019-07-10 | 2019-09-17 | 上海神开石油科技有限公司 | A kind of online ion transducer of drilling fluid and ion concentration measurement method |
| CN110632134A (en) * | 2018-06-22 | 2019-12-31 | 宝山钢铁股份有限公司 | Method for rapidly detecting content of chloride ions on surface of hot-rolled pickled steel plate |
-
1998
- 1998-09-11 CN CN 98117977 patent/CN1211731A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569111A (en) * | 2013-10-27 | 2015-04-29 | 中国石油化工集团公司 | Online measurement device and method for ionic concentration of drilling fluid |
| CN110632134A (en) * | 2018-06-22 | 2019-12-31 | 宝山钢铁股份有限公司 | Method for rapidly detecting content of chloride ions on surface of hot-rolled pickled steel plate |
| CN110632134B (en) * | 2018-06-22 | 2022-06-28 | 宝山钢铁股份有限公司 | Method for rapidly detecting content of chloride ions on surface of hot-rolled pickled steel plate |
| CN110243912A (en) * | 2019-07-10 | 2019-09-17 | 上海神开石油科技有限公司 | A kind of online ion transducer of drilling fluid and ion concentration measurement method |
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