CN100570402C - The calibration method of liquid level depth error of oil well liquid level depth tester - Google Patents
The calibration method of liquid level depth error of oil well liquid level depth tester Download PDFInfo
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- CN100570402C CN100570402C CNB2007100522073A CN200710052207A CN100570402C CN 100570402 C CN100570402 C CN 100570402C CN B2007100522073 A CNB2007100522073 A CN B2007100522073A CN 200710052207 A CN200710052207 A CN 200710052207A CN 100570402 C CN100570402 C CN 100570402C
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Abstract
The calibration method of liquid level depth error of oil well liquid level depth tester, with the computing machine that has data acquisition unit and signal processor, pass through collection in worksite, the reflection wave electric signal of microphone output on the type well of storage known depth phonetic symbol, convert digital signal to, and input to the computing machine of band data processing playback device, treated and playback is reduced to the reflection wave raw electrical signal of type well microphone output, standard signal source as the liquid level test depth error that detects the oil-well level tester, in again that this signal source input is the detected oil-well level tester, output data data by detected oil-well level tester survey record, the phonetic symbol degree of depth that calculating records, and compare with the known actual phonetic symbol degree of depth, both differences are this oil-well level tester level test errors.Advantage is: obtain reliable degree of depth standard source by this method, can be implemented in the calibrating of finishing in the laboratory oil-well level tester level test error, do not need on oil well the scene to test.Easy to operate, the calibrating cost is low, calibrating accuracy height.
Description
Technical field
The present invention relates to the oil well test field, relate in particular to a kind of method that the depth test error of the widely used oil-well level tester of oil well test is examined and determine.
Background technology
At present, the oil-well level tester is all adopted in domestic test to oil-well level, its depth measurement principle is: at the well head of oil well one sound generator is installed, produce the gas blast of moment, propagate downwards along wellbore annulus by the pressure vibration ripple that explosion produces, meet tubing joint, phonetic symbol, barriers such as liquid level produce reflection wave, the microphone of well head is accepted these reflection waves, and convert electric signal to and measure by the oil-well level tester, handle and acquisition and recording, according to the reflection wave position of the length of known tubing joint or phonetic symbol and the proportionate relationship of liquid surface wave position, calculate the degree of depth of liquid level.The oil-well level tester is the level that tests out oil well by the reflection case of acoustic signals.Because oil-well level reaches thousands of rice, is difficult to find standard source (being used to examine and determine the comparison standard of oil-well level tester MTD error) that the depth test error of oil-well level tester is examined and determine.The method of existing Oilfield using is: directly having on the oil well of phonetic symbol the scene test with the oil-well level tester, data with test is calculated the phonetic symbol degree of depth, the actual grade of phonetic symbol is compared during with construction, thereby judges the error of oil-well level tester depth measurement.But because the oil wells in field environment is abominable, upward well bothers, the cycle is long, workload is big, cost is high, and oil well reason easily causes oil well box cupling, phonetic symbol reflection wave signal instability owing to wax deposition, crude oil be sticky etc., sometimes be difficult to accurately judge these reflection wave signals, influenced oil-well level tester precision of test result, authenticity.Therefore the oil field be badly in need of a kind of easy to operate, the calibrating cost is low, examine and determine the calibration method of oil-well level tester liquid level test depth error accurately.
Summary of the invention
Purpose of the present invention is exactly a kind of method that can accurately examine and determine oil-well level tester MTD error of invention.
The technical solution adopted in the present invention is:
The calibration method of liquid level depth error of oil well liquid level depth tester, with the computing machine that has data acquisition unit and signal processor, pass through collection in worksite, the reflection wave electric signal of microphone output on the type well of storage known depth phonetic symbol, convert digital signal to, and input to the computing machine of band data processing playback device, treated and playback is reduced to the reflection wave raw electrical signal of type well microphone output, with the standard signal source of this reflection wave raw electrical signal as the liquid level test depth error that detects the oil-well level tester, in again that this signal source input is the detected oil-well level tester, output data data by detected oil-well level tester survey record, the phonetic symbol degree of depth that calculating records, and compare with the known actual phonetic symbol degree of depth, both differences are this oil-well level tester level test errors.
Advantage of the present invention is: obtain reliable degree of depth standard source by this method, can be implemented in the calibrating of finishing in the laboratory oil-well level tester level test error, do not need on oil well the scene to test.Easy to operate, the calibrating cost is low, calibrating accuracy height.
Embodiment:
The on-site data gathering device is USB2005 type (production of Beijing Altay company limited), it is connected with computing machine, at the standard well mouth of oil well that the known phonetic symbol degree of depth is housed one sound generator and a microphone are installed, produce the gas blast of moment by sound generator, propagate downwards along wellbore annulus by the pressure vibration ripple that explosion produces, meet tubing joint, phonetic symbol, barriers such as liquid level produce reflection wave, accept these reflection wave signals by the microphone of well head again, and reflection wave signal is input to data acquisition unit, by the Computer Storage signal data, then with the type well signal data by after being contained in PCI2007A type data playback process device (production of Beijing Altay company limited) processing and amplifying and playback in the computing machine, be reduced to the reflection wave raw electrical signal of microphone output, with the standard signal source of this signal as calibrating oil-well level tester test liquid level depth error, be input in the detected oil-well level tester, data according to detected oil-well level tester output, can calculate the phonetic symbol degree of depth that it records, and compare with the known actual phonetic symbol degree of depth, both differences are this oil-well level tester level test errors.
Claims (1)
1, the calibration method of liquid level depth error of oil well liquid level depth tester, it is characterized in that with the computing machine that has data acquisition unit and signal processor, pass through collection in worksite, the reflection wave electric signal of microphone output on the type well of storage known depth phonetic symbol, convert digital signal to, and input to the computing machine of band data processing playback device, treated and playback is reduced to the reflection wave raw electrical signal of type well microphone output, with the standard signal source of this reflection wave raw electrical signal as the liquid level test depth error that detects the oil-well level tester, in again that this signal source input is the detected oil-well level tester, output data data by detected oil-well level tester survey record, the phonetic symbol degree of depth that calculating records, and compare with the known actual phonetic symbol degree of depth, both differences are this oil-well level tester level test errors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100522073A CN100570402C (en) | 2007-05-15 | 2007-05-15 | The calibration method of liquid level depth error of oil well liquid level depth tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100522073A CN100570402C (en) | 2007-05-15 | 2007-05-15 | The calibration method of liquid level depth error of oil well liquid level depth tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101201410A CN101201410A (en) | 2008-06-18 |
| CN100570402C true CN100570402C (en) | 2009-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100522073A Active CN100570402C (en) | 2007-05-15 | 2007-05-15 | The calibration method of liquid level depth error of oil well liquid level depth tester |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571724B (en) * | 2009-06-17 | 2011-01-12 | 南京大学 | Measurement and control method for intelligent acoustic control of liquid level |
| CN104713631B (en) * | 2013-12-16 | 2018-01-05 | 贵州航天凯山石油仪器有限公司 | The detection method of bulk sound velocity in a kind of oil well |
| CN105298474B (en) * | 2014-07-28 | 2018-07-13 | 中国石油天然气股份有限公司 | A kind of phonetic symbol device |
| CN104864943B (en) * | 2015-05-14 | 2018-07-17 | 中国石油天然气股份有限公司 | A kind of calibrating installation and method of liquid level tester |
-
2007
- 2007-05-15 CN CNB2007100522073A patent/CN100570402C/en active Active
Non-Patent Citations (6)
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| 抽油井真实液面测试技术研究及应用. 李中华，鲁章成，王永伟，李成荣，陈常如.西南石油学院学报，第25卷第1期. 2003 |
| 抽油井真实液面测试技术研究及应用. 李中华，鲁章成，王永伟，李成荣，陈常如.西南石油学院学报，第25卷第1期. 2003 * |
| 标题：基于单片机的抽油井液面自动监测仪设计与应用. 徐爱钧.测控技术，第20卷第4期. 2001 |
| 标题：基于单片机的抽油井液面自动监测仪设计与应用. 徐爱钧.测控技术，第20卷第4期. 2001 * |
| 油井液面深度测量仪的研制. 吴新杰，王鲁川，孙定源，张建成，王师.自动化仪表，第21卷第2期. 2000 |
| 油井液面深度测量仪的研制. 吴新杰，王鲁川，孙定源，张建成，王师.自动化仪表，第21卷第2期. 2000 * |
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| Publication number | Publication date |
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| CN101201410A (en) | 2008-06-18 |
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Free format text: CORRECT: ADDRESS; FROM: 448202 NO.135, HANJIN AVENUE, SHAYANG COUNTY, HUBEI PROVINCE TO: 430205 CAIFU 2ND ROAD, DONF ER INDUSTRIAL PARK, DONGHU DEVELOPMENT AREA, WUHAN CITY, HUBEI PROVINCE |
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Effective date of registration: 20100413 Address after: 430205 fortune two, east two industrial park, East Lake Development Zone, Hubei, Wuhan Patentee after: Hubei Jianghan Petroleum Instrument & Meter Co., Ltd. Address before: 448202, No. 135 Han Jin Road, Shayang County, Hubei Province Patentee before: Hubei Jianghan Petrochemical Instrument Instrument Co., Ltd. |