CN105424548A - Density measuring instrument and application method thereof - Google Patents
Density measuring instrument and application method thereof Download PDFInfo
- Publication number
- CN105424548A CN105424548A CN201510766139.1A CN201510766139A CN105424548A CN 105424548 A CN105424548 A CN 105424548A CN 201510766139 A CN201510766139 A CN 201510766139A CN 105424548 A CN105424548 A CN 105424548A
- Authority
- CN
- China
- Prior art keywords
- penetron
- check weighing
- weighing grain
- apotheca
- grain
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
Abstract
The invention discloses a density measuring instrument and an application method thereof. The density measuring instrument comprises a pressure sensor, a weighing grain storage chamber, a switch and a counter. A probe of the pressure sensor is located outside the density measuring instrument, and the pressure sensor is used for measuring external pressure; the weighing grain storage chamber is used for storing weighing grains, an outlet is formed in the bottom of the weighing grain storage chamber, the interior of the weighing grain storage chamber is communicated with the exterior of the density measuring instrument through the outlet, and the weighing grains can pass through the outlet; the switch is used for controlling the outlet in the bottom of the weighing grain storage chamber to be opened or closed; the counter is used for computing the number of opening-closing times. By means of the density measuring instrument, the parameters including pressure and density of the pressure gradient can be obtained and determined, and therefore the pressure gradient can be obtained.
Description
Technical field
The present invention relates to field of measuring technique, particularly relate to a kind of penetron and using method thereof.
Background technology
In oil well production process, along with the crude oil in shaft bottom is in the medium-altitude rising of pit shaft oil pipe, the pressure of crude oil inside reduces gradually, and oil density reduces; When crude oil internal pressure is higher than crude oil saturation pressure, crude oil in oil pipe is single-phase liquid flowing; When pressure is lower than crude oil saturation pressure, the rock gas dissolved in crude oil starts to separate from oil, in oil pipe, fluid becomes gas-liquid two-phase flow from single-phase flow, increases the difficulty of crude oil sampling, reflects that two key parameters of above-mentioned phase-state change are pressure and density.Pit shaft is very important parameter along the pressure gradient of journey simultaneously, because know that pressure gradient just can calculated flow rate, thus help oil recovery personnel in ground formulate and adjust rational working system and take some can increase production measure, and the key parameter asking for pressure gradient is density.
The deficiencies in the prior art are: the instrument not measuring pressure gradient at present.
Summary of the invention
The embodiment of the present invention provides a kind of penetron, and in order to provide a kind of instrument can measuring pressure gradient, this penetron comprises: pressure transducer, check weighing grain apotheca, switch, counter, wherein:
Pressure transducer, sensor probe is positioned at penetron outside, for measuring external pressure;
Check weighing grain apotheca, for depositing check weighing grain, is provided with outlet bottom check weighing grain apotheca, and check weighing grain apotheca inside is by this outlet and penetron ft connection, and this outlet is by check weighing grain;
Switch, for controlling check weighing grain apotheca outlet at bottom switch;
Counter, for compute switch number of times.
In an embodiment, described penetron comprises further:
Check weighing grain, is placed in check weighing grain apotheca inner.
In an embodiment, check weighing grain is lead button.
In an embodiment, described penetron comprises further:
Diaphragm seal, for when check weighing grain apotheca outlet at bottom switch opens, prevents outside liquid from entering penetron inside.
In an embodiment, described penetron comprises further:
Digital computing system, is connected with counter, for according to check weighing grain weight, penetron volume and the weight preset, in conjunction with rolling counters forward result, and bulk density.
In an embodiment, digital computing system, is connected with pressure transducer, for obtaining the measurement result of pressure transducer.
The embodiment of the present invention additionally provides the using method of above-mentioned penetron, and for using above-mentioned penetron to measure pressure gradient, the method comprises:
Open switch, check weighing grain is by check weighing grain apotheca outlet at bottom;
Rolling counters forward, external pressure measured by pressure transducer;
Recording counter count results and/or pressure transducer measurement result.
In an embodiment, described recording counter count results and/or pressure transducer measurement result, by digital computing system record.
In an embodiment, described method comprises further:
Digital computing system is according to the rolling counters forward result of record, and check weighing grain weight, penetron volume and the weight preset, bulk density.
In an embodiment, described default penetron volume and weight are the volume of penetron when being suspended in liquid and weight.
In an embodiment, described liquid is the crude oil in oil well.
In an embodiment, check weighing grain is positioned over check weighing grain apotheca after determining penetron volume and weight.
In an embodiment, described method comprises further:
Digital computing system, according to density and pressure transducer measurement result, determines the corresponding relation of pressure and density.
In an embodiment, described penetron carries out measuring in the crude oil of oil well.
In the embodiment of the present invention, owing to having pressure transducer, therefore can measure the pressure of current location, current location flows out control then by the check weighing grain in switch control rule check weighing grain apotheca, further, in precognition check weighing grain weight, penetron volume and weight, in conjunction with rolling counters forward result, the density of this position can be calculated, therefore, adopt this penetron can know the parameter determining pressure gradient: pressure and density, therefore also just can obtain pressure gradient.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.In the accompanying drawings:
Fig. 1 is the penetron structural representation in the embodiment of the present invention;
Fig. 2 is the using method implementing procedure schematic diagram of the penetron in the embodiment of the present invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the embodiment of the present invention is described in further details.At this, schematic description and description of the present invention is for explaining the present invention, but not as a limitation of the invention.
Fig. 1 is penetron structural representation, as shown in the figure, can comprise: pressure transducer 101, check weighing grain apotheca 102, switch 103, counter 104, wherein:
Pressure transducer 101, sensor probe is positioned at penetron outside, for measuring external pressure;
Check weighing grain apotheca 102, for depositing check weighing grain, is provided with outlet bottom check weighing grain apotheca, and check weighing grain apotheca inside is by this outlet and penetron ft connection, and this outlet is by check weighing grain;
Switch 103, for controlling check weighing grain apotheca outlet at bottom switch;
Counter 104, for compute switch number of times.
In enforcement, can further include:
Check weighing grain, is placed in check weighing grain apotheca inner.Concrete little round shaped grain as shown in check weighing grain apotheca 102 in figure.
In enforcement, check weighing grain can be lead button.
Concrete, check weighing grain is for bulk density, and concrete account form asks for an interview following embodiment, and therefore the ponderable round shaped grain of other tools all can be used as check weighing grain, but the advantage had on cost and density in view of lead, can preferred lead button in enforcement.
In enforcement, can further include:
Diaphragm seal 105, for when check weighing grain apotheca outlet at bottom switch opens, prevents outside liquid from entering penetron inside.
Concrete, when internal tank and external communication, internal objects passes through or when flowing to outside, the technology preventing extraneous gas or liquid countercurrent from returning internal tank is conventional mature technology, and diaphragm seal herein can select one according to actual needs.
In enforcement, can further include:
Digital computing system 106, is connected with counter, for according to check weighing grain weight, penetron volume and the weight preset, in conjunction with rolling counters forward result, and bulk density.
In enforcement, digital computing system, is connected with pressure transducer, for obtaining the measurement result of pressure transducer.
Concrete, easy understand, in enforcement when getting density and corresponding pressure, can know, draw pressure gradient, in today of data processing equipment small, the digital computing system of calculating pressure gradient can be considered to be placed in penetron, but, obviously, after the acquisition, simple storage or directly transmission (as wireless transmission) be also feasible to the computing equipment of other positions.
As fully visible, the penetron provided in embodiment is a kind of measuring instrument that can be applied to monitoring producing well oil pipe inner fluid density, can comprise: lead button apotheca, deposit lead button.Counter, measures the quantity of the shot that drops.Pressure transducer, measures the pressure in pit shaft.Switch, controls dropping of shot.Diaphragm seal, only import but no export when ensureing switch opens, namely only has the bead youngster that drops not have entering of crude oil.Digital computing system, carries out correlation computations, asks for density.Below the use of this instrument is described.
Fig. 2 is the using method implementing procedure schematic diagram of penetron, as shown in the figure, can comprise:
Step 201, open switch, check weighing grain is by check weighing grain apotheca outlet at bottom;
Step 202, rolling counters forward, external pressure measured by pressure transducer;
Step 203, recording counter count results and/or pressure transducer measurement result.
In enforcement, described recording counter count results and/or pressure transducer measurement result, can by digital computing system record.
In enforcement, can further include:
Digital computing system is according to the rolling counters forward result of record, and check weighing grain weight, penetron volume and the weight preset, bulk density.
Concrete reason sees above the explanation stated digital computing system.
In enforcement, described default penetron volume and weight can be the volume of penetron when being suspended in liquid and weight.
In enforcement, liquid can be the crude oil in oil well.
In enforcement, check weighing grain can be positioned over check weighing grain apotheca after determining penetron volume and weight.
In enforcement, may further include:
Digital computing system, according to density and pressure transducer measurement result, determines the corresponding relation of pressure and density.
In enforcement, penetron can be carry out measuring in the crude oil of oil well.
In concrete enforcement, to be applied to the use of monitoring producing well oil pipe inner fluid density, the operating process being applied to the penetron of monitoring producing well oil pipe inner fluid density is specifically as follows:
1, Density Measuring Instrument is suspended in wellbore oil, then have the density of crude oil to equal the density of Density Measuring Instrument, and suppose that known density instrument volume is V, little shot diameter d is 0.2cm;
2, be full of shot by Density Measuring Instrument, closing switch, weighing quality is m, drops in pit shaft, and record pressure is now P
0, corresponding density p
0for m/V;
3, open switch, spray a shot, recording now pressure is P
1, corresponding density can be ρ according to digital computing system
1, specific formula for calculation is as shown in formula (1):
Wherein, n is the sum of shot of dropping; ρ
plumbousfor the density of shot.
Also namely, when a lead button is from by switch control rule, after opening outflow, when it suspends fixedly, for the penetron density that the oil density of this position is also namely current, the weight that m deducts a lead button obtains current weight, except learning current density in V.
4, repeat step 3, in like manner, by controlling the outflow quantity of lead button, the density of each position and correspondence can be learnt, therefore just can record a series of pressure value P
2, P
3, P
4with density values ρ
2, ρ
3, ρ
4
To sum up, oil well production technical field of measurement and test can be applied to, particularly a kind ofly be applied in the penetron of monitoring producing well oil pipe inner fluid density, comprise: the lead button apotheca depositing lead button.Measure the counter of the quantity of the shot that drops.Measure the pressure transducer of the pressure in pit shaft.Control the switch dropped of shot.Ensure the diaphragm seal of only import but no export during switch opens, namely only have the bead youngster that drops there is no entering of crude oil.Digital computing system carries out correlation computations, asks for density.
In enforcement, spray little lead button by Density Measuring Instrument self and change self gravitation, change the degree of depth that Density Measuring Instrument is residing in the wellbore, by the change of pressure in the pressure transducer recording process of Density Measuring Instrument self, the final relation just can learning pit shaft Crude Oil pressure and density, can instruct follow-up pit shaft along stroke pressure gradient calculation.
Further, by the penetron in the embodiment of the present invention, the Changing Pattern of the density of fluid under different pressures can be monitored the moment, thus instruct follow-up production system formulation and adjustment better.Also namely:
1, by density parameter can ask for pit shaft along stroke pressure gradient, thus density and the pressure of different depth crude oil can be learnt;
2, after learning the crude oil pressure of different depth, the precognition of fluid phase state can be realized;
3, learn the phase of fluid, formulation in advance and the adjustment of subsequent production system can be realized.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disk memory, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the process flow diagram of the method for the embodiment of the present invention, equipment (system) and computer program and/or block scheme.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block scheme and/or square frame and process flow diagram and/or block scheme and/or square frame.These computer program instructions can being provided to the processor of multi-purpose computer, special purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computing machine or other programmable data processing device produce device for realizing the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
These computer program instructions also can be loaded in computing machine or other programmable data processing device, make on computing machine or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computing machine or other programmable devices is provided for the step realizing the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; the protection domain be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (14)
1. a penetron, is characterized in that, comprising: pressure transducer, check weighing grain apotheca, switch, counter, wherein:
Pressure transducer, sensor probe is positioned at penetron outside, for measuring external pressure;
Check weighing grain apotheca, for depositing check weighing grain, is provided with outlet bottom check weighing grain apotheca, and check weighing grain apotheca inside is by this outlet and penetron ft connection, and this outlet is by check weighing grain;
Switch, for controlling check weighing grain apotheca outlet at bottom switch;
Counter, for compute switch number of times.
2. penetron as claimed in claim 1, is characterized in that, comprise further:
Check weighing grain, is placed in check weighing grain apotheca inner.
3. penetron as claimed in claim 1 or 2, it is characterized in that, check weighing grain is lead button.
4. penetron as claimed in claim 1, is characterized in that, comprise further:
Diaphragm seal, for when check weighing grain apotheca outlet at bottom switch opens, prevents outside liquid from entering penetron inside.
5. the penetron as described in claim 1,2 or 4, is characterized in that, comprise further:
Digital computing system, is connected with counter, for according to check weighing grain weight, penetron volume and the weight preset, in conjunction with rolling counters forward result, and bulk density.
6. penetron as claimed in claim 5, is characterized in that digital computing system is connected with pressure transducer, for obtaining the measurement result of pressure transducer.
7. a using method for the penetron as described in as arbitrary in claim 1 to 6, is characterized in that, comprising:
Open switch, check weighing grain is by check weighing grain apotheca outlet at bottom;
Rolling counters forward, external pressure measured by pressure transducer;
Recording counter count results and/or pressure transducer measurement result.
8. method as claimed in claim 7, it is characterized in that, described recording counter count results and/or pressure transducer measurement result, by digital computing system record.
9. method as claimed in claim 8, is characterized in that, comprise further:
Digital computing system is according to the rolling counters forward result of record, and check weighing grain weight, penetron volume and the weight preset, bulk density.
10. method as claimed in claim 9, is characterized in that, described default penetron volume and weight, is the volume of penetron when being suspended in liquid and weight.
11. methods as claimed in claim 10, it is characterized in that, described liquid is the crude oil in oil well.
12. methods as claimed in claim 10, it is characterized in that, check weighing grain is positioned over check weighing grain apotheca after determining penetron volume and weight.
13. methods as claimed in claim 9, is characterized in that, comprise further:
Digital computing system, according to density and pressure transducer measurement result, determines the corresponding relation of pressure and density.
14. as arbitrary in claim 7 to 13 as described in method, it is characterized in that, described penetron carries out measuring in the crude oil of oil well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510766139.1A CN105424548B (en) | 2015-11-11 | 2015-11-11 | Penetron and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510766139.1A CN105424548B (en) | 2015-11-11 | 2015-11-11 | Penetron and its application method |
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| Publication Number | Publication Date |
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| CN105424548A true CN105424548A (en) | 2016-03-23 |
| CN105424548B CN105424548B (en) | 2018-05-04 |
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| CN201510766139.1A Active CN105424548B (en) | 2015-11-11 | 2015-11-11 | Penetron and its application method |
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| CN102128026A (en) * | 2011-04-06 | 2011-07-20 | 北京六合伟业科技有限公司 | Formation pressure measuring device while drilling |
| CN202362227U (en) * | 2011-12-09 | 2012-08-01 | 杭州瑞利勘测设备科技有限公司 | Differential pressure type densitometer |
| CN105067481A (en) * | 2015-07-09 | 2015-11-18 | 浙江蓝箭称重技术有限公司 | Digital mud specific gravity tester and testing method |
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2015
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Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0232228A (en) * | 1988-07-22 | 1990-02-02 | Shisaka Kenkyusho:Kk | Density balance and density measuring method |
| EP0441770A2 (en) * | 1990-02-09 | 1991-08-14 | AVL Gesellschaft für Verbrennungskraftmaschinen und Messtechnik mbH.Prof.Dr.Dr.h.c. Hans List | Device for measuring density |
| US5157968A (en) * | 1990-02-27 | 1992-10-27 | Uri Zfira | Apparatus for measuring the specific gravity, weight, level, and/or volume of a liquid in a container |
| RU2089881C1 (en) * | 1995-02-28 | 1997-09-10 | Александр Анатольевич Хачков | Device determining density of liquid |
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| CN105424548B (en) | 2018-05-04 |
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