CN101793147A - Online nuclear magnetic resonance type analysis and detection device of oil content of drilling fluid - Google Patents
Online nuclear magnetic resonance type analysis and detection device of oil content of drilling fluid Download PDFInfo
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- CN101793147A CN101793147A CN201010134896A CN201010134896A CN101793147A CN 101793147 A CN101793147 A CN 101793147A CN 201010134896 A CN201010134896 A CN 201010134896A CN 201010134896 A CN201010134896 A CN 201010134896A CN 101793147 A CN101793147 A CN 101793147A
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- 238000005553 drilling Methods 0.000 title claims abstract description 95
- 239000012530 fluid Substances 0.000 title claims abstract description 87
- 238000005481 NMR spectroscopy Methods 0.000 title claims abstract description 26
- 238000004458 analytical method Methods 0.000 title claims abstract description 18
- 238000001514 detection method Methods 0.000 title claims abstract description 18
- 238000005070 sampling Methods 0.000 claims abstract description 33
- 239000000523 sample Substances 0.000 claims abstract description 28
- 238000010183 spectrum analysis Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010223 real-time analysis Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 24
- 238000012360 testing method Methods 0.000 description 13
- 238000002474 experimental method Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 230000009183 running Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
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- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 239000010779 crude oil Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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Abstract
The invention discloses an online nuclear magnetic resonance type analysis and detection device of the oil content of drilling fluid, which comprises an online drilling fluid sampling device and a low-field-intensity nuclear magnetic resonance device. The online drilling fluid sampling device comprises a power pump extracting device arranged on a drilling fluid pipeline and a sampling pipeline connected with the power pump extracting device; and the low-field-intensity nuclear magnetic resonance device comprises a probe device and a spectrometer control device, wherein the probe device comprises a detection coil around the sampling pipeline and a magnet arranged on the periphery of the detection coil, the spectrometer control device comprises a control computer, a signal receiving and transmitting change-over switch, a radio-frequency signal amplifier and a weak signal amplifier, wherein the signal receiving and transmitting change-over switch is connected with the detection coil, the radio-frequency signal amplifier and the weak signal amplifier are connected with the control computer and the signal receiving and transmitting change-over switch, and analysis and detection software of the oil content of drilling fluid is arranged in the control computer. The invention can conveniently and rapidly obtain the oil-water signal in the drilling fluid according to experimental requirements, so as to achieve the real-time analysis of the oil content and water content of the drilling fluid, to learn about the stratum information, and to provide rapid and effective drilling guidance.
Description
Technical field
The invention belongs to NMR relaxation drilling fluid profit analysis field, be specifically related to a kind of online nuclear magnetic resonance type analysis and detection device of oil content of drilling fluid.
Background technology
The well logging technology be find, timely, the most direct means of assessment oil reservoir, " eyes " under being called in depth by people.Drilling fluid can assist people to enroll the firsthand information of formation information at the well logging scene as " blood " of drilling well.After oil-gas Layer left by brill, drilling fluid contacted with oil-gas Layer, and have a large amount of oil bloom in the drilling fluid this moment, bubble occurs, and by sample collection, the later experiments chamber is detected, and often contains crude oil, diesel oil and various oils in these drilling fluids.So, whether can carry out real-time profit content detection to drilling fluid at the well logging scene? so not only can raise the efficiency, more can in time pinpoint the problems, underground oil-containing situation is assessed fast and effectively, thereby instructed drillng operation, create bigger economic and social benefit.And traditional means of experiment need be obtained rock core under the stratum, takes back the laboratory and vacuumizes, seeps water, tests, and real-time is poor.
Based on above analysis, we utilize low ripe NMR technology, on-the-spot real-time monitoring instrument framework in supporting oil field and fast detecting profit content software, released this product towards spudder author, realize the real-time detection of drilling well work, monitoring in real time, pinpoint the problems and handle rapid and convenient, easy operating in real time.In the oil gas drilling operation, use online magnetic resonance detection analytical system, can directly reflect aspect data such as down-hole geological structure, the moisture situation of oil-containing and drilling engineering in real time, therefore have that the information of obtaining is timely, various, analysis interpretation characteristics efficiently, be other exploration engineering can't replace.It relates to multiple professional techniques such as sensing technology, information processing and transmission technology, is the product of contemporary high technology, and particularly in the construction of " digital oil " or " digital oil field ", it will have bigger design for development and service clearance.
Summary of the invention
The present invention seeks to: a kind of online nuclear magnetic resonance type analysis and detection device of oil content of drilling fluid is provided, the profit situation of the online detection drilling fluid that this device can be accurate, real-time, test process is fast convenient.
Technical scheme of the present invention is: a kind of online nuclear magnetic resonance type analysis and detection device of oil content of drilling fluid comprises online drilling fluid sampler and low field intensity nuclear magnetic resonance equipment; Described online drilling fluid sampler comprises the sampling line that is arranged on the power pump extracting device on the drilling fluid pipeline and connects described power pump extracting device; Described low field intensity nuclear magnetic resonance equipment then comprises probe apparatus and spectrometer control device, and described probe apparatus comprises the magnet that is centered around the search coil on the aforementioned sampling line and is arranged on described search coil periphery; And described spectrometer control device comprises control computer, the signal transmitting and receiving changeover switch that links to each other with aforementioned search coil and is connected radio frequency signal amplifying device and the small-signal amplifying device of controlling computer and signal transmitting and receiving changeover switch, and oil content of drilling fluid analyzing and testing software is installed in the described control computer.
Power pump extracting device described in the present invention comprises interlock valve and the kinetic pump that is arranged on the drilling fluid pipeline, and the two ends of described sampling line are connected by link valve and kinetic pump and drilling fluid pipeline respectively.
Further, described interlock valve is opened and closed by kinetic pump control, and kinetic pump then links to each other with the control computer, and it implements interlock with the interlock valve by the control computer control.
The analyzing and testing of oil content of drilling fluid described in the present invention software is conventional T2 spectrum analysis testing software, and it comprises data acquisition software and back analysis software.
The present invention can obtain profit signal in the drilling fluid quickly and easily by requirement of experiment, so that the profit content in the real-time analysis drilling fluid, by characterizing the timely understanding formation information relevant, for drilling well work provides task instruction fast with the drilling fluid of being analyzed.
Workflow of the present invention is mainly divided following five steps: 1, kinetic pump sampling; 2, send into sampling line; 3, data acquisition; 4, data are preserved or real-time analysis; 5, power pumps sample; The concrete course of work is: at first by the control computer kinetic pump is exported a pulse enable signal kinetic pump continuous running, thereby drive the interlock valve opening, the on-the-spot drilling fluid that extrudes from the stratum in real time and flow along the drilling fluid pipeline of well logging is pressed into sampling line, after treating that drilling fluid is full of sampling line, the pulse current that drives kinetic pump finishes, the interlock valve closing.This moment, the drilling fluid sample in the sampling line kept inactive state, and by magnet it was polarized, and controlled computer subsequently and sent radio-frequency pulse by radio frequency signal amplifying device, signal transmitting and receiving changeover switch and search coil the drilling fluid sample is encouraged.Under the excitation of radio-frequency (RF) pulse signal, the drilling fluid sample produces NMR signal, this NMR signal is received by search coil, and be returned to the control computer by signal transmitting and receiving changeover switch, small-signal amplifying device, finish data acquisition by the control computer by the oil content of drilling fluid analyzing and testing software of inside again for the drilling fluid sample.Gather the gained data and can directly be saved in the control computer,, also can obtain in real time to analyze so that subsequent analysis is handled.After collection was finished, whole device entered holding state, prepared sampling next time.And by the parameter setting in the described oil content of drilling fluid analyzing and testing software, can set the blanking time of adjacent double sampling among the present invention,, instruct drillng operation so that in time reasonably obtain formation information.Treat that arrive blanking time one, control computer output pulse signal immediately orders about kinetic pump running and interlock valve opening, the fresh drilling fluid that flows in the drilling fluid pipeline is pressed into sampling line, and the drilling fluid in original sampling line is then expelled to be flowed back in the drilling fluid pipeline.Package unit repeats previous step new drilling fluid sample is carried out data acquisition under the control of oil content of drilling fluid analyzing and testing software subsequently.
Advantage of the present invention is:
1. the present invention can guarantee in real time, fast and accurately the drilling fluid sample be carried out the profit signal testing, so as in time to analyze the drilling fluid sample in profit content, understand formation information, work is instructed in real time effectively to well logging.Not only avoided the loaded down with trivial details experiment in the traditional test process, saved plenty of time and cost, measuring accuracy is also secure.
2. the present invention can conveniently, accurately control the blanking time of sample test, to satisfy the demand of the special experiment under the different drillng operation situations, to guarantee not omitting useful information in twice adjacent test process by requirement of experiment.
3. the present invention can adapt to abominable relatively experimental situation, and the accuracy that also can guarantee in the drilling environment in the open air to test has greatly been widened the service condition of this equipment with repeated.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described:
Fig. 1 is a structure principle chart of the present invention;
Fig. 2 is the structural relation schematic diagram of online drilling fluid sampler among the present invention and probe apparatus;
Fig. 3 is the working state structure schematic diagram of online drilling fluid sampler among the present invention and probe apparatus;
Fig. 4 is a workflow schematic diagram of the present invention.
Wherein: 1, online drilling fluid sampler; 2, low field intensity nuclear magnetic resonance equipment; 3, sampling line; 4, search coil; 5, signal transmitting and receiving changeover switch; 6, control computer; 7, radio frequency signal amplifying device; 8, small-signal amplifying device; 9, drilling fluid pipeline; 10, interlock valve; 11, kinetic pump; 12, magnet.
The specific embodiment
Embodiment: in conjunction with Fig. 1, Fig. 2 and shown in Figure 3, this online nuclear magnetic resonance type analysis and detection device of oil content of drilling fluid that present embodiment provides comprises online drilling fluid sampler 1 and low field intensity nuclear magnetic resonance equipment 2; Described online drilling fluid sampler 1 is made up of power pump extracting device and sampling line 3, described power pump extracting device comprises interlock valve 10 and the kinetic pump 11 that is arranged on the drilling fluid pipeline 9, and the two ends of described sampling line 3 are connected with drilling fluid pipeline 9 by interlock valve 10 and kinetic pump 11 respectively.Described interlock valve 10 is opened and closed by kinetic pump 11 controls, and kinetic pump 11 then links to each other with control computer 6, and it implements interlock with interlock valve 10 by 6 controls of control computer.2 of described low field intensity nuclear magnetic resonance equipments comprise probe apparatus and spectrometer control device, and wherein said probe apparatus comprises the magnet 12 that is centered around the search coil 4 on the aforementioned sampling line 3 and is arranged on described search coil 4 peripheries, specifically sees Fig. 2 and Fig. 3; And described spectrometer control device comprises control computer 6, the signal transmitting and receiving changeover switch 5 that links to each other with aforementioned search coil 4 and radio frequency signal amplifying device 7 and the small-signal amplifying device 8 that is connected control computer 6 and signal transmitting and receiving changeover switch 5.Oil content of drilling fluid analyzing and testing software is installed in the described control computer 6, and described oil content of drilling fluid analyzing and testing software is T2 spectrum analysis testing software, and it comprises data acquisition software and back analysis software.
In conjunction with shown in Figure 4, workflow of the present invention is mainly divided following five steps: 1, kinetic pump sampling; 2, send into sampling line; 3, data acquisition; 4, data are preserved or real-time analysis; 5, power pumps sample, below in conjunction with Fig. 1, Fig. 2 with shown in Figure 3ly be elaborated as follows: at first by 11 continuous runnings of 6 pairs of kinetic pumps of control computer, 11 outputs, one pulse enable signal kinetic pump to workflow of the present invention, thereby driving interlock valve 10 opens, the on-the-spot drilling fluid that extrudes from the stratum in real time and flow along drilling fluid pipeline 9 of well logging is pressed into sampling line 3, after treating that drilling fluid is full of sampling line 3, the pulse current that drives kinetic pump 11 finishes, and interlock valve 10 is closed.This moment, sampling line 3 interior drilling fluid samples kept inactive state, and by magnet 12 it is polarized, control computer 6 subsequently and send radio-frequency pulse by radio frequency signal amplifying device 7, signal transmitting and receiving changeover switch 5 and search coil 4 the drilling fluid sample is encouraged.Under the excitation of radio-frequency (RF) pulse signal, the drilling fluid sample produces NMR signal, this signal is received by search coil 4, and be returned to control computer 6 by signal transmitting and receiving changeover switch 5, small-signal amplifying device 8, finish data acquisition by control computer 6 by the oil content of drilling fluid analyzing and testing software of inside again for the drilling fluid sample.Gather the gained data and can directly be saved in the control computer 6,, also can obtain in real time to analyze so that subsequent analysis is handled.After collection was finished, whole device entered holding state, prepared sampling next time.And by the parameter setting in the described oil content of drilling fluid analyzing and testing software, can set the blanking time of adjacent double sampling among the present invention,, instruct drillng operation so that in time reasonably obtain formation information.Treat that arrive blanking time one, control computer 6 output pulse signal immediately orders about kinetic pump 11 runnings and 10 unlatchings of interlock valve, the fresh drilling fluid that flows in the drilling fluid pipeline 9 is pressed into sampling line 3, and the drilling fluid in original sampling line 3 is then expelled to be flowed back in the drilling fluid pipeline 9.Package unit repeats previous step new drilling fluid sample is carried out data acquisition under the control of oil content of drilling fluid analyzing and testing software subsequently.
As follows by the foregoing description advantage of the present invention as can be known:
1. can guarantee in real time, fast and accurately the drilling fluid sample be carried out the profit signal testing, so as in time to analyze the drilling fluid sample in profit content, understand formation information, work is instructed in real time effectively to well logging.Not only avoided the loaded down with trivial details experiment in the traditional test process, saved plenty of time and cost, measuring accuracy is also secure.
2. can conveniently, accurately control the blanking time of sample test, to satisfy the demand of the special experiment under the different drillng operation situations, to guarantee in twice adjacent test process, not omitting useful information by requirement of experiment.
3. can adapt to abominable relatively experimental situation, the accuracy that also can guarantee in the drilling environment in the open air to test has greatly been widened the service condition of this equipment with repeated.
The above only is the preferred embodiments of the present invention, can not limit scope of the invention process with this, and all simple conversion of doing according to claim of the present invention and description all should still belong to the protection domain that the present invention covers.
Claims (5)
1. an online nuclear magnetic resonance type analysis and detection device of oil content of drilling fluid is characterized in that comprising online drilling fluid sampler (1) and low field intensity nuclear magnetic resonance equipment (2); Described online drilling fluid sampler (1) comprises the sampling line (3) that is arranged on the power pump extracting device on the drilling fluid pipeline (9) and connects described power pump extracting device; Described low field intensity nuclear magnetic resonance equipment (2) then comprises probe apparatus and spectrometer control device, and described probe apparatus comprises the search coil (4) that is centered around on the aforementioned sampling line (3) and is arranged on the peripheral magnet (12) of described search coil (4); And described spectrometer control device comprises control computer (6), the signal transmitting and receiving changeover switch (5) that links to each other with aforementioned search coil (4) and is connected radio frequency signal amplifying device (7) and the small-signal amplifying device (8) of controlling computer (6) and signal transmitting and receiving changeover switch (5), and oil content of drilling fluid analyzing and testing software is installed in the described control computer (6).
2. online nuclear magnetic resonance type analysis and detection device of oil content of drilling fluid according to claim 1, it is characterized in that: power pump extracting device comprises interlock valve (10) and the kinetic pump (11) that is arranged on the drilling fluid pipeline (9), and the two ends of described sampling line (3) are connected with drilling fluid pipeline (9) by interlock valve (10) and kinetic pump (11) respectively.
3. online nuclear magnetic resonance type analysis and detection device of oil content of drilling fluid according to claim 2, it is characterized in that: described interlock valve (10) is opened and closed by kinetic pump (11) control, kinetic pump (11) then links to each other with control computer (6), controls it by control computer (6) and implements interlock with interlock valve (10).
4. online nuclear magnetic resonance type analysis and detection device of oil content of drilling fluid according to claim 1 is characterized in that: described oil content of drilling fluid analyzing and testing software is T2 spectrum analysis testing software, and it comprises data acquisition software and back analysis software.
5. according to claim 1 or 4 described online nuclear magnetic resonance type analysis and detection device of oil content of drilling fluid, it is characterized in that: described oil content of drilling fluid analyzing and testing software can be controlled the blanking time of adjacent double sampling by parameter is set.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102213685A (en) * | 2011-04-18 | 2011-10-12 | 上海纽迈电子科技有限公司 | Nuclear magnetic resonance (NMR) device for oiliness seed automatic test and intelligent sorting |
| CN105275465A (en) * | 2015-09-23 | 2016-01-27 | 中国石油大学(北京) | Nuclear magnetic resonance logging system |
| CN106053299A (en) * | 2015-04-12 | 2016-10-26 | 艾斯拜克特Ai有限公司 | System and method for nmr imaging of fluids in non-circular cross-sectional conduits |
| CN106841269A (en) * | 2017-01-12 | 2017-06-13 | 西南石油大学 | A kind of method that utilization nuclear magnetic resonance evaluates rejected well drilling liquid separation of solid and liquid |
| US10174569B2 (en) | 2013-06-20 | 2019-01-08 | Aspect International (2015) Private Limited | NMR/MRI-based integrated system for analyzing and treating of a drilling mud for drilling mud recycling process and methods thereof |
| CN109254027A (en) * | 2018-11-01 | 2019-01-22 | 西南石油大学 | A kind of mud cake closure evaluating apparatus and evaluation method based on low-field nuclear magnetic resonance |
| US10444170B2 (en) | 2015-07-02 | 2019-10-15 | Aspect Ai Ltd. | System and method for analysis of fluids flowing in a conduit |
| CN110412064A (en) * | 2018-04-27 | 2019-11-05 | 中国石油化工股份有限公司 | A kind of drilling well fluid nuclear magnetic resonance on-line detecting system |
| US10598581B2 (en) | 2013-11-06 | 2020-03-24 | Aspect Imaging Ltd. | Inline rheology/viscosity, density, and flow rate measurement |
| US10655996B2 (en) | 2016-04-12 | 2020-05-19 | Aspect Imaging Ltd. | System and method for measuring velocity profiles |
| US10670574B2 (en) | 2015-01-19 | 2020-06-02 | Aspect International (2015) Private Limited | NMR-based systems for crude oil enhancement and methods thereof |
| CN113238031A (en) * | 2021-05-25 | 2021-08-10 | 中国科学院西北生态环境资源研究院 | Real-time detection system for liquid water content in frozen soil |
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| CN110412064A (en) * | 2018-04-27 | 2019-11-05 | 中国石油化工股份有限公司 | A kind of drilling well fluid nuclear magnetic resonance on-line detecting system |
| CN109254027A (en) * | 2018-11-01 | 2019-01-22 | 西南石油大学 | A kind of mud cake closure evaluating apparatus and evaluation method based on low-field nuclear magnetic resonance |
| CN113238031A (en) * | 2021-05-25 | 2021-08-10 | 中国科学院西北生态环境资源研究院 | Real-time detection system for liquid water content in frozen soil |
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