CN201780246U - Carbonate content measurement instrument employing pressure-volume method - Google Patents
Carbonate content measurement instrument employing pressure-volume method Download PDFInfo
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- CN201780246U CN201780246U CN2010202744511U CN201020274451U CN201780246U CN 201780246 U CN201780246 U CN 201780246U CN 2010202744511 U CN2010202744511 U CN 2010202744511U CN 201020274451 U CN201020274451 U CN 201020274451U CN 201780246 U CN201780246 U CN 201780246U
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Abstract
The utility model relates to a carbonate content measurement instrument employing a pressure-volume method, and belongs to the technical field of oil exploration conventional rock core analysis testing instruments. The carbonate content measurement instrument comprises an acid resistant measuring pump, an acid storage cup, a computer, a data acquisition plate, a pressure sensor, a U-shaped gauge tube, an acid-rock reaction cup and an electromagnetic stirrer. The carbonate content measurement instrument can obtain the total carbonate content by allowing excessive hydrochloric acid to decompose the carbonate in a rock sample to release carbon dioxide gas, collecting and measuring the volume of the carbon dioxide gas, measuring the pressure generated by the carbon dioxide gas, real-time acquiring the experiment pressure through the computer and the data acquisition plate and processing through an automatic analysis and processing system, and calculates the contents of calcium and magnesium in the rock sample according to the different reaction rates of calcium carbonate and magnesium carbonate. The carbonate content measurement instrument provided by the utility model overcomes the shortcomings of the volume method and the pressure method, and computer control, rapid analysis and small volume, simplicity in operation, and convenience in carry are achieved. The instrument can be used for conventional rock core lithological character analysis.
Description
Technical field:
The utility model relates to a kind of pressure-volumetric method carbonate content analyzer that adopts pressure-volumetric method to measure carbonate content in the rock, belongs to conventional core analysis testing tool technical field in the petroleum exploration and development research.
Background technology:
Oil and gas reservoir is the deep under ground porous layer, the feature in oil gas underground reservoir space is the storage abundance of structure, the character of the reservoir porous matter occurrence characteristics that determined oil reservoir, oil gas and reserves, oil gas well capacity, has also determined the complexity and the final effect of oil reservoir development.Studying and grasp reservoir properties is the basis of understanding reservoir, evaluation reservoir, protection reservoir and transformation reservoir, is to be engaged in petroleum prospecting, drilling well, oil-field development exploitation and to improve the necessary element task of rate of oil and gas recovery work.The rock core conventional analysis is at normal temperatures and pressures rock core to be analyzed, obtain the method for basic physical properties parameters such as factor of porosity, permeability, carbonate content and saturation degree, it is the important parameter of research reservoir characteristics, carbonate reservoir is one of main reservoir of oil and natural gas, and carbonate content is to improve the target of analyzing rock core traditional performance index in the therefore accurately quick measurement carbonatite.
The method for measuring of carbon current phosphate content has two kinds: a kind of is to measure with volumetric method, and it is the carbonate that utilizes in the excessive hydrochloric acid decomposition rock sample, discharges CO
2Gas is by collecting and metering CO
2Volume, the content of carbonate in the computing rock sample.The advantage that volumetric method is measured is that the carbon dioxide cubing that generates is direct, and the precision height is cheap; But shortcoming also clearly, and equipment is too simple and crude, and glassware is frangible, and it is not too convenient to operate.Another kind is that pressure application is measured, and promptly in a closed container, with a certain amount of rock sample and watery hydrochloric acid reaction, produces CO
2Gas increases container inner pressure.At a certain temperature, the amount of sample is many more, the CO of generation
2Pressure is high more.Consider the pressure sex change of container, both are not linear.Under isothermy, the standard rock sample of available a series of Different Weight (lime carbonate that content is known, preferably pure lime carbonate) comes nominal pressure and CaCO
3Weight, again divided by the sample general assembly (TW), draw the content of carbonate in the rock sample.The instrument and equipment of pressure application is more advanced, but also has many shortcomings: cost an arm and a leg; Owing to can not stir during reaction, acid is insufficient with the rock dust reaction; The gas that reaction generates is few, and relevant pressure neither be very big, and the error that produces during with gauge measurement is bigger; The CO that generates
2It is acid that water vapor is, and can corrode the metal surface in the container, has a strong impact on the serviceable life of instrument.
Summary of the invention:
The purpose of this utility model is: a kind of carbonate content that adopts in pressure-volumetric method measurement rock is provided, utilizes the carbonate in the excessive hydrochloric acid decomposition rock sample, discharge CO
2Gas is by collecting and metering CO
2Volume, measure CO simultaneously
2The pressure that gas produces, by experimental pressure is gathered in real time, analyzing and processing, obtain the carbonate total content, again according to the difference of lime carbonate, magnesium carbonate reaction rate, thereby extrapolate the pressure-volumetric method carbonate content analyzer of calcium-magnesium content in the rock sample.
The utility model is to realize above-mentioned purpose by following technical solution:
This pressure-volumetric method carbonate content analyzer is made up of acidproof volume pump, storage acid cup, acid inlet valve, notes acid valve, computing machine, data acquisition board, vent valve, pressure transducer, U type gauge line, sour rock reaction cup and magnetic stirrer, it is characterized in that: be placed with sour rock reaction cup on the magnetic stirrer, be connected with acidproof volume pump by associated line and the sour valve of notes in the acid rock reaction cup, be connected with storage acid cup by associated line and acid inlet valve on the acidproof volume pump; Be connected with U type gauge line and pressure transducer by another root associated line and vent valve in the acid rock reaction cup, atmospheric communicating pipe is equipped with in the outlet of U type gauge line, pressure transducer is connected with data acquisition board by cable, and data acquisition board is connected with computing machine by connection.
The utility model beneficial effect compared with prior art is:
The utility model has overcome the defective of volumetric method and pressure application mensuration rock carbonate content, realized computer control, and have easy and simple to handle, analysis speed is fast, analysis precision is high, the main frame volume is little, be easy to carry, advantage such as easy to operate, the long service life of instrument can be widely used in the analytical test of conventional core lithology.
Description of drawings:
Accompanying drawing is the structural representation of pressure-volumetric method carbonate content analyzer.
Among the figure: 1, acidproof volume pump, 2, storage acid cup, 3, acid inlet valve, 4, annotate sour valve, 5, computing machine, 6, data acquisition board, 7, vent valve, 8, pressure transducer, 9, U type gauge line, 10, sour rock reaction cup, 11, magnetic stirrer, 12, atmospheric communicating pipe.
Embodiment:
This pressure-volumetric method carbonate content analyzer is made up of acidproof volume pump 1, storage acid cup 2, acid inlet valve 3, the sour valve 4 of notes, computing machine 5, data acquisition board 6, vent valve 7, pressure transducer 8, U type gauge line 9, sour rock reaction cup 10, magnetic stirrer 11.Be connected with storage acid cup 2 by acid inlet valve 3 on the acidproof volume pump 1, the outlet of acidproof volume pump 1 is connected with sour rock reaction cup 10 by annotating sour valve 4, acid rock reaction cup 10 is connected with U type gauge line 9 by associated line, be incorporated with a certain amount of water in the U type gauge line 9, the outlet of U type gauge line 9 communicates with atmosphere by pipeline.On the associated line of acid rock reaction cup 10 and U type gauge line 9 vent valve 7 and pressure transducer 8 are housed, pressure transducer 8 is connected with data acquisition board 6 by cable, and data acquisition board 6 is connected with computing machine 5 with the R232 serial ports by connection.Acid rock reaction cup 10 places on the magnetic stirrer 11, and magnetic stirrer 11 has stepless speed regulation agitating function (referring to accompanying drawing).
The experimental implementation step of this pressure-volumetric method carbonate content analyzer is as follows:
1, experimental procedure:
1), take by weighing a certain amount of rock dust, open vent valve 7, take off sour rock reaction cup 10, the rock dust that takes by weighing is packed in the sour rock reaction cup 10, then sour rock reaction cup 10 is screwed on, moments later close vent valve 7.
2), open acid inlet valve 3, sucking 15ml concentration with acidproof ram pump 1 is 15% hydrochloric acid (HCl), closes acid inlet valve 3, opens and annotates sour valve 4, and hydrochloric acid is injected sour rock reaction cup 10.
3), start magnetic stirrer 11, rock dust and hydrochloric acid (HCl) are fully reacted.
4), treat in the U type gauge line 9 to read liquid level volume V in the U type gauge line 9 behind the liquid level stabilizings.
5), by formula (1) calculates the CO that generates
2Volume.
6), by formula (2) calculate the content of carbonatite in the sandstone.
2, the derivation of equation:
(1) CO
2The volume calculation formula
1. initial blank volume V
0:
Initial blank volume: annotate sour valve 4, vent valve 7 is closed (original state), the blank volume when U type gauge line 9 liquid levels are in the 0-0 position from the pipeline of sour rock reaction cup 10 to U type gauge lines 9 liquid levels needs to demarcate in advance, is made as V
0
Wherein: V
0Void volume on U type gauge line 9 liquid levels before=reaction cup volume+pipeline volume+reaction.
2. react back compressed gas volume V
1:
Reaction back compressed gas volume: back (annotate sour valve 4, vent valve 7 is closed) is finished in reaction, and the gas volume of liquid level pressurized formation difference in height is V in the U type gauge line 9, then:
V
1=V
0+ V-15-W/ ρ
Rock
3. reacted gaseous tension p
1:
It is p that reaction back pressure transducer 8 is gathered pressure, and atmospheric pressure is P
0, gaseous tension is P in the U type gauge line 9 of reaction back
1
p
1＝p
0+p
4. CO
2Volume calculation:
According to the equation of gas state, under isothermy, have: p
1V
1=p
aV
a
When temperature drops to initial temperature in the sour rock reaction cup, then have:
So, the CO that the carbonatite reaction generates
2Gas volume V under atmospheric pressure
xFor:
V
x=V
a-[V
0-15-W/ ρ
Rock] (2)
Wherein: W---rock sample weight, g;
ρ
Rock---the density of rock sample, mg/ml;
P
a, V
aBe pressure and the volume that is converted to compressed gas under the atmospheric pressure, and
P
0＝Pa。
(2) carbonatite cubage formula
The content of carbonatite is represented with the massfraction of lime carbonate in the rock sample, and its computing formula is:
η＝V
xρ/(44W) (3)
Wherein: η---the content of lime carbonate in the rock sample, %;
Under ρ---laboratory temperature, the atmospheric pressure, carbon dioxide gas volume density, mg/ml;
W---rock sample weight, g.
Claims (1)
1. pressure-volumetric method carbonate content analyzer, it is by acidproof volume pump (1), storage acid cup (2), acid inlet valve (3), annotate sour valve (4), computing machine (5), data acquisition board (6), vent valve (7), pressure transducer (8), U type gauge line (9), acid rock reaction cup (10) and magnetic stirrer (11) are formed, it is characterized in that: be placed with sour rock reaction cup (10) on the magnetic stirrer (11), be connected with acidproof volume pump (1) by associated line and the sour valves of notes (4) in the acid rock reaction cup (10), acidproof volume pump (1) is gone up by associated line and acid inlet valve (3) and is connected with storage acid cup (2); Be connected with U type gauge line (9) and pressure transducer (8) by another root associated line and vent valve (7) in the acid rock reaction cup (10), atmospheric communicating pipe (12) is equipped with in the outlet of U type gauge line (9), pressure transducer (8) is connected with data acquisition board (6) by cable, and data acquisition board (6) is connected with computing machine (5) by connection.
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|---|---|---|---|
| CN2010202744511U CN201780246U (en) | 2010-07-26 | 2010-07-26 | Carbonate content measurement instrument employing pressure-volume method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202744511U CN201780246U (en) | 2010-07-26 | 2010-07-26 | Carbonate content measurement instrument employing pressure-volume method |
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| CN102654492A (en) * | 2012-04-17 | 2012-09-05 | 肇庆理士电源技术有限公司 | Device and method for measuring content of lead carbonate |
| CN103091200A (en) * | 2012-12-30 | 2013-05-08 | 浙江工业大学 | Method and device for detecting metal aluminum content in burned ash |
| CN103234861A (en) * | 2013-05-13 | 2013-08-07 | 西南石油大学 | Acid-rock reaction rate dynamic test device and calculation method |
| CN103389256A (en) * | 2013-07-18 | 2013-11-13 | 烟台大学 | Method for measuring metal aluminum content in garbage incineration slag |
| CN103808628A (en) * | 2014-03-03 | 2014-05-21 | 重庆医科大学 | Blood-culture carbon dioxide trace-gas detection system and detection method thereof |
| CN104897517A (en) * | 2015-06-25 | 2015-09-09 | 安徽工业大学 | Experimental metal/water reaction hydrogen production device and metal/water reaction hydrogen production collection method |
| WO2016048276A1 (en) * | 2014-09-23 | 2016-03-31 | Halliburton Energy Services, Inc. | Automated calcimeter systems |
| CN105486606A (en) * | 2016-01-28 | 2016-04-13 | 海安县石油科研仪器有限公司 | Carbonate content tester |
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| RU186922U1 (en) * | 2018-05-21 | 2019-02-11 | Общество с ограниченной ответственностью Научно-производственное предприятие "БУРИНТЕХ" (ООО НПП "БУРИНТЕХ") | DEVICE FOR QUANTITATIVE DETERMINATION OF CALCIUM AND MAGNESIUM CARBONATES IN DRILLING MIXTURE |
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- 2010-07-26 CN CN2010202744511U patent/CN201780246U/en not_active Expired - Fee Related
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| CN102654492A (en) * | 2012-04-17 | 2012-09-05 | 肇庆理士电源技术有限公司 | Device and method for measuring content of lead carbonate |
| CN103091200A (en) * | 2012-12-30 | 2013-05-08 | 浙江工业大学 | Method and device for detecting metal aluminum content in burned ash |
| CN103234861A (en) * | 2013-05-13 | 2013-08-07 | 西南石油大学 | Acid-rock reaction rate dynamic test device and calculation method |
| CN103389256A (en) * | 2013-07-18 | 2013-11-13 | 烟台大学 | Method for measuring metal aluminum content in garbage incineration slag |
| CN103808628A (en) * | 2014-03-03 | 2014-05-21 | 重庆医科大学 | Blood-culture carbon dioxide trace-gas detection system and detection method thereof |
| CN103808628B (en) * | 2014-03-03 | 2016-01-13 | 重庆医科大学 | Blood culture carbon dioxide trace gas detection system and detection method thereof |
| GB2541332B (en) * | 2014-09-23 | 2020-10-07 | Halliburton Energy Services Inc | Automated calcimeter systems |
| WO2016048276A1 (en) * | 2014-09-23 | 2016-03-31 | Halliburton Energy Services, Inc. | Automated calcimeter systems |
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| CN105486606A (en) * | 2016-01-28 | 2016-04-13 | 海安县石油科研仪器有限公司 | Carbonate content tester |
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| CN107219150A (en) * | 2017-07-07 | 2017-09-29 | 河海大学 | A kind of method and its device for determining soil sample calcium carbonate content |
| RU186922U1 (en) * | 2018-05-21 | 2019-02-11 | Общество с ограниченной ответственностью Научно-производственное предприятие "БУРИНТЕХ" (ООО НПП "БУРИНТЕХ") | DEVICE FOR QUANTITATIVE DETERMINATION OF CALCIUM AND MAGNESIUM CARBONATES IN DRILLING MIXTURE |
| WO2020051259A1 (en) * | 2018-09-05 | 2020-03-12 | Michael Smith | Carbonate grain content analysis and related methods |
| CN110286057A (en) * | 2019-06-06 | 2019-09-27 | 武汉纺织大学 | A kind of portable carbonate intelligent test device and method |
| CN111537663A (en) * | 2020-04-20 | 2020-08-14 | 中国石油天然气集团有限公司 | Lithology identifier carrying device and lithology identification system and method based on lithology identifier carrying device |
| CN112540109A (en) * | 2020-11-27 | 2021-03-23 | 江苏大学 | Method and device for synchronously calculating hydrogen evolution amount during electrochemical test |
| CN112540109B (en) * | 2020-11-27 | 2023-07-18 | 江苏大学 | Method and device for synchronously calculating hydrogen evolution quantity during electrochemical test |
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Granted publication date: 20110330 Termination date: 20110726 |