CN101644596B - Liquid level measuring meter - Google Patents
Liquid level measuring meter Download PDFInfo
- Publication number
- CN101644596B CN101644596B CN2009103064911A CN200910306491A CN101644596B CN 101644596 B CN101644596 B CN 101644596B CN 2009103064911 A CN2009103064911 A CN 2009103064911A CN 200910306491 A CN200910306491 A CN 200910306491A CN 101644596 B CN101644596 B CN 101644596B
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- Prior art keywords
- pressure
- liquid level
- guiding pipe
- level measuring
- liquid
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention relates to a liquid level measuring meter which is characterized by comprising a pressure-sensing capsule, a pressure-sensing capsule supporting frame, a pressure-transmitting medium, a pressure-leading pipe, a liquid level viewing window, a ring-shaped plate, a ring-shaped sealing gasket and a hole-opening cover assembly, wherein the ring-shaped plate is tightly fixed with the pressure-leading pipe, the hole-opening cover assembly and the ring-shaped sealing gasket; the pressure-sensing capsule supporting frame is provided with a pressure-sensing capsule which is connected with the pressure-leading pipe and the hole-opening cover assembly; the pressure-sensing capsule is internally filled with the pressure-transmitting medium; and the pressure-leading pipe is communicated with the liquid level viewing window. The liquid level measuring meter has the following advantages: separating the liquid medium to be measured and the liquid level viewing window, transmitting pressure by the pressure-transmitting medium, avoiding the phenomenon that the liquid medium is contaminated and adhered on the liquid level viewing window to cause that the liquid level can be measured accurately or can not be measured, having the comprehensive advantages of a direct measuring method and a pressure method, eliminating the influence of dissolved gas and foam to the yield measuring result when measuring the yield of thick oil in formation testing operation, having higher measuring accuracy, thus being applicable to liquid level measurement of various types of liquid mediums.
Description
Technical field
The invention belongs to petroleum industry level gauging utensil, particularly relate to a kind of fluid level measuring gauge.
Background technology
Formation testing is the indispensable important means of being familiar with stratum and hydrocarbon zone characteristic in the present known oilfield explorating developing process and determining the hydrocarbon zone parameter.At present because the otherness of different viscous crude stratum (oil reservoir) viscous crude physical features, it is the otherness of the density, electrical property feature etc. of viscous crude, the strongly adherent that special viscous crude is had makes various contacts detect liquid level and can't use at the formation testing operation field of viscous crude prospect pit, appraisal well with utensil.Optical method in the non-contact detection liquid level method detects control as fixed point only, is difficult for carrying out continuous coverage, and the calorifics method only is applicable to pyrometry molten metal liquid level, and the nuclear radiation method is because its harmfulness to human body should not be used for the drilling job platform.For microwave method and supercritical ultrasonics technology, when the specific inductive capacity of measured medium is low, or liquid level has in turbulence or the medium bubble arranged, or liquid level has foam, will cause the decay of microwave or ultrasonic signal, influences the correctness of measurement result.Owing to contain dissolving and free gas in the viscous crude, reality is higher to make the heavy oil production that records in other method that adopts except that pressure application, time error even very big is arranged, and this will influence the correct evaluation of production capacity and the correct formulation of development plan, concerning the exploiting economy effect.
Summary of the invention
The present invention for solve the technical matters that exists in the known technology provide a kind of simple in structure, precision is higher, be convenient to operation and maintenance and safe and reliable fluid level measuring gauge.
The technical scheme that the present invention takes for the technical matters that exists in the solution known technology is: fluid level measuring gauge, it is characterized in that: comprise the pressure-sensitive capsule, pressure-sensing glue rami capsulares support, pressure transmitting medium, pressure guiding pipe, the liquid level looking glass, annular slab, Gask-O-Seal, the vented cap assembly, annular slab tightens intrinsic pressure guiding pipe, vented cap assembly and Gask-O-Seal, be equipped with the pressure-sensitive capsule on the pressure-sensing glue rami capsulares support, the pressure-sensitive capsule links to each other with the vented cap assembly with pressure guiding pipe, in the pressure-sensitive capsule, be filled with pressure transmitting medium, pressure guiding pipe is communicated with the liquid level looking glass, also is provided with the pressure sensor interface that is used to connect pressure transducer on pressure guiding pipe.
The present invention can also adopt following technical scheme:
Liquid medium to be measured is isolated with the liquid level looking glass, by the pressure transmitting medium pressure transmission, has avoided liquid medium to be measured to be infected with, to adhere to the liquid level looking glass and cause being difficult to accurately or can not the measuring liquid level phenomenon.
Described liquid level looking glass is an organic glass liquid level looking glass, and the liquid level looking glass is marked with the scale that is accurate to millimeter, and be pressure guiding pipe inwall summit the zero point of scale.
All having eight on described annular slab and the vented cap assembly is evenly distributed and corresponding threaded hole.
Also be provided with by-pass valve control on the described pressure guiding pipe.
Described pressure transmitting medium is colored hydraulic oil.
Described pressure-sensitive capsule is the fluororubber material.
Advantage and good effect that the present invention has are: after the present invention has adopted above technical scheme, liquid medium to be measured is isolated with the liquid level looking glass, by the pressure transmitting medium pressure transmission, avoided liquid medium to be measured to be infected with, adhere to the liquid level looking glass and cause being difficult to accurately or can not the measuring liquid level phenomenon, overall merit with the direct method of measurement and pressure application, realized indirectly, continuous coverage and monitoring, solution gas and foam have been eliminated in the formation testing operation when heavy oil production is measured to the influence of output measurement result, the measurement precision is higher, and the output that records more can truly reflect the stratum production capacity.The present invention is applicable to the level gauging of all kinds liquid medium, especially high viscosity, level gauging poisonous, the highly corrosive liquid medium is had very strong specific aim and advantage.In addition, the present invention is simple in structure, no movable member, and reliable operation, working service is simple, convenient, and low cost of manufacture can effectively be saved human cost and labour intensity.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the A-A cut-open view of Fig. 1;
Fig. 3 is user mode figure of the present invention.
Among the figure: 1, liquid level looking glass; 2, pressure guiding pipe; 3, Gask-O-Seal; 4, annular slab; 5, pressure-sensitive capsule; 6, pressure-sensing glue rami capsulares support; 7, fluid reservoir tank body; 8, vented cap assembly; 9, pressure sensor interface; 10, by-pass valve control; 11, scale.
Embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1-Fig. 2, a kind of fluid level measuring gauge mainly comprises: pressure-sensitive capsule 5, pressure-sensing glue rami capsulares support 6, pressure guiding pipe 2, liquid level looking glass 1, annular slab 4, ring-like sealing gasket 3, vented cap assembly 8 and pressure transmitting medium.Annular slab 4 is welded in the fluid reservoir perforate in advance, all being shaped on eight on annular slab 4 and the vented cap assembly 8 is evenly distributed and corresponding threaded hole, be fixed with pressure guiding pipe 2, vented cap assembly 8 and Gask-O-Seal 3 by screw on the annular slab 4, pressure guiding pipe 2 is communicated with liquid level looking glass 1.Be equipped with the pressure-sensitive capsule 5 that adopts the fluororubber material on the pressure-sensing glue rami capsulares support 6, pressure-sensitive capsule 5 links to each other with vented cap assembly 8 with pressure guiding pipe 2, by-pass valve control 10 also is installed in pressure guiding pipe, also is provided with the pressure sensor interface 9 that is used to connect pressure transducer on the pressure guiding pipe.The liquid level looking glass that liquid level looking glass 1 is made for pmma material, liquid level looking glass are marked with the scale 11 that is accurate to millimeter, and be pressure guiding pipe 2 inwall summits the zero point of scale.Be filled with colored hydraulic oil in the pressure-sensitive capsule 5, mix up zero-bit after, can carry out level gauging
Principle of work of the present invention is:
See also Fig. 3, during use, vented cap assembly 8, annular slab 4 and Gask-O-Seal 3 are installed in the jar mouthful place of fluid reservoir tank body 7 by bolt, and the pressure-sensitive capsule 5 that is filled with colored hydraulic oil in it is positioned over bottom in the fluid reservoir tank body by pressure-sensing glue rami capsulares support 6, can carry out level gauging after the scale on the liquid level looking glass 1 being mixed up zero-bit again.Because liquid medium to be measured is isolation with the liquid level looking glass,, avoided liquid medium to be measured to be infected with, to adhere to the liquid level looking glass and cause being difficult to accurately or can not the measuring liquid level phenomenon by the pressure transmitting medium pressure transmission.
The density of supposing desire metering viscous crude is ρ
O1, unit is kg/m
3, can obtain by sample analysis.Viscous crude T in jar
1Liquid level constantly is h
1, T
2Liquid level constantly is h
2, unit is m.The pressure-sensitive Media density is ρ
O2, unit is kg/m
3, size is known.The pressure-sensitive medium T
1Liquid level constantly is H
1, T
2Liquid level constantly is H
2, unit is m, H
2And H
1Can be from the direct reading of the scale label on the looking glass.The tank body cross-sectional area is S, and unit is m
2T
1Volume constantly is V
1, T
2Volume constantly is V
2, T
2-T
1The time interval is 0.5hrs, T
2-T
1Flow in the time interval is Δ V, then can try to achieve according to following relational expression and amount to the day output (m of unit
3/ d) be:
Q＝24ΔV/(T
2-T
1)＝24S(ρ
o2/ρ
o1)(H
2-H
1)/0.5＝48S(ρ
o2/ρ
o1)(H
2-H
1)
In addition, also reserve pressure sensor interface on the instrument, can cooperate with data acquisition system (DAS) and realize measuring in real time and monitoring.The density of supposing desire metering viscous crude is ρ
O1, unit is kg/m
3, can obtain by sample analysis.T
1The liquid level of jar interior viscous crude is h constantly
1, T
2Liquid level constantly is h
2, unit is m.T
1The pressure reading of data acquisition system (DAS) collection is P1 constantly, T
2The pressure reading of data acquisition system (DAS) collection is P2 constantly, and unit is Pa.The tank body cross-sectional area is S, and unit is m
2, T
1Volume constantly is V
1, T
2Volume constantly is V
2, T
2-T
1Be 0.5hrs, flow is Δ V, and Q is for amounting to day output, and unit is m
3/ d can be tried to achieve to amount to and has a daily output of by following relational expression:
Q＝24ΔV/(T
2-T
1)＝24S(P
2-P
1)/[ρ
o1g(T
2-T
1)]＝48S(P
2-P
1)/(ρ
o1g)
Use above-mentioned two kinds of ways all can record satisfied liquid level or output, and can measure checking with one or both methods according to the self-demand decision.
Need to prove that the art of this patent can solve viscous crude and stop up pressure guiding pipe and be infected with liquid level looking glass problem, integrated use pressure application and direct Detection Method principle measuring liquid level, except that the level gauging to all trades and professions viscous crude and other thick liquid medium has very strong specific aim and advantage, also be suitable for the level gauging of the low liquid medium of viscosity.
Any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention has been done all belong to the category of technical scheme of the present invention.
Claims (7)
1. fluid level measuring gauge, it is characterized in that: comprise pressure-sensitive capsule, pressure-sensing glue rami capsulares support, pressure transmitting medium, pressure guiding pipe, liquid level looking glass, annular slab, Gask-O-Seal, vented cap assembly, annular slab tightens intrinsic pressure guiding pipe, vented cap assembly and Gask-O-Seal, be equipped with the pressure-sensitive capsule on the pressure-sensing glue rami capsulares support, the pressure-sensitive capsule links to each other with the vented cap assembly with pressure guiding pipe, be filled with pressure transmitting medium in the pressure-sensitive capsule, pressure guiding pipe is communicated with the liquid level looking glass, is provided with the pressure sensor interface that is used to connect pressure transducer on pressure guiding pipe.
2. fluid level measuring gauge according to claim 1 is characterized in that: liquid medium to be measured is isolated with the liquid level looking glass, by the pressure transmitting medium pressure transmission.
3. fluid level measuring gauge according to claim 1 is characterized in that: described liquid level looking glass is an organic glass liquid level looking glass, and the liquid level looking glass is marked with scale, and be pressure guiding pipe inwall summit the zero point of scale.
4. fluid level measuring gauge according to claim 1 is characterized in that: all have even distribution and corresponding threaded hole on described annular slab and the vented cap assembly.
5. fluid level measuring gauge according to claim 1 is characterized in that: also be provided with by-pass valve control on the described pressure guiding pipe.
6. fluid level measuring gauge according to claim 1 is characterized in that: described pressure transmitting medium is colored hydraulic oil.
7. fluid level measuring gauge according to claim 1 is characterized in that: the material of described pressure-sensitive capsule is a fluororubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103064911A CN101644596B (en) | 2009-09-02 | 2009-09-02 | Liquid level measuring meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103064911A CN101644596B (en) | 2009-09-02 | 2009-09-02 | Liquid level measuring meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101644596A CN101644596A (en) | 2010-02-10 |
| CN101644596B true CN101644596B (en) | 2011-04-06 |
Family
ID=41656577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009103064911A Expired - Fee Related CN101644596B (en) | 2009-09-02 | 2009-09-02 | Liquid level measuring meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101644596B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG11201911840WA (en) * | 2017-09-04 | 2020-01-30 | Panasonic Ip Man Co Ltd | Washing machine |
| CN109812263B (en) * | 2017-11-21 | 2022-05-03 | 中国石油化工股份有限公司 | Performance testing device and method of formation pressure measuring system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2184195Y (en) * | 1993-10-26 | 1994-11-30 | 青岛市川德机电设备工程公司 | Liquid level meter for transmission storage |
| CN1118066A (en) * | 1994-08-27 | 1996-03-06 | 北京市西城区新开通用试验厂 | Multi-tube liquid specific gravity and container liquid-level measuring unit. |
| CN1877266A (en) * | 2006-06-30 | 2006-12-13 | 中国科学院合肥物质科学研究院 | Liquid level transmitter for sealed oil tank |
| CN2924002Y (en) * | 2006-04-17 | 2007-07-18 | 田文广 | Well-drilling depth measuring device |
| CN201476839U (en) * | 2009-09-02 | 2010-05-19 | 中国海洋石油总公司 | Liquid level meter |
-
2009
- 2009-09-02 CN CN2009103064911A patent/CN101644596B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2184195Y (en) * | 1993-10-26 | 1994-11-30 | 青岛市川德机电设备工程公司 | Liquid level meter for transmission storage |
| CN1118066A (en) * | 1994-08-27 | 1996-03-06 | 北京市西城区新开通用试验厂 | Multi-tube liquid specific gravity and container liquid-level measuring unit. |
| CN2924002Y (en) * | 2006-04-17 | 2007-07-18 | 田文广 | Well-drilling depth measuring device |
| CN1877266A (en) * | 2006-06-30 | 2006-12-13 | 中国科学院合肥物质科学研究院 | Liquid level transmitter for sealed oil tank |
| CN201476839U (en) * | 2009-09-02 | 2010-05-19 | 中国海洋石油总公司 | Liquid level meter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101644596A (en) | 2010-02-10 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20161213 Address after: 100027 Beijing city Dongcheng District Dongzhimen Street No. 6 Patentee after: CNOOC Energy Technology Co., Ltd. Address before: 100010 Dongcheng District, Chaoyangmen, North Street, No. 25, ocean Oil Mansion, No. Patentee before: China National Offshore Oil Corporation Patentee before: CNOOC Energy Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20170902 |