CN101793147B - 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 PDF

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Publication number
CN101793147B
CN101793147B CN201010134896A CN201010134896A CN101793147B CN 101793147 B CN101793147 B CN 101793147B CN 201010134896 A CN201010134896 A CN 201010134896A CN 201010134896 A CN201010134896 A CN 201010134896A CN 101793147 B CN101793147 B CN 101793147B
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drilling fluid
oil content
magnetic resonance
nuclear magnetic
online
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CN101793147A (en
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杨培强
王志战
张英力
曹红婷
陈路平
俞文文
刘利荣
夏春云
马进献
石志东
沈杰
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Suzhou Niumag Analytical Instrument Corp
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SUZHOU NIUMAI ELECTRONICS CO Ltd
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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

Online nuclear magnetic resonance type analysis and detection device of oil content of drilling fluid
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, the assessment oil reservoir the most in time, the most direct means, " 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 through 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 be on-the-spot at well logging, drilling fluid is carried out real-time profit content detection? 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, and supporting oil field on-site real-time monitoring instrument framework and fast detecting profit content software have been 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 real time direct reflect aspect data such as down-hole geological structure, the moisture situation of oil-containing and drilling engineering; Therefore have that the information of obtaining is timely, various, analysis interpretation characteristics efficiently, be that other exploration engineering institute can't be substituted.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; Said online drilling fluid sampler comprises the sampling line that is arranged on the power pump extracting device on the drilling fluid pipeline and connects said power pump extracting device; Said low field intensity nuclear magnetic resonance equipment then comprises probe apparatus and spectrometer control device, and said probe apparatus comprises the magnet that is centered around the search coil on the aforementioned sampling line and is arranged on said search coil periphery; And said 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 said 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 said sampling line are connected through link valve and kinetic pump and drilling fluid pipeline respectively.
Further, said 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 the 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, through 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 appearance; 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 well logging on-site real-time is extruded from the stratum and the drilling fluid that flows along the drilling fluid pipeline 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 through radio frequency signal amplifying device, signal transmitting and receiving changeover switch and search coil the drilling fluid sample is encouraged.Under the excitation of RF pulse signal; The drilling fluid sample produces NMR signal; This NMR signal is received by search coil; And pass back to the control computer through signal transmitting and receiving changeover switch, small-signal amplifying device, accomplish 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 gathering completion, whole device gets into holding state, prepares sampling next time.And through the parameter setting in the said 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 then is compelled to flow back in the drilling fluid pipeline.Package unit repeats previous step new drilling fluid sample is carried out data acquisition under oil content of drilling fluid analyzing and testing control of software subsequently.
Advantage of the present invention is:
1. the present invention can guarantee in real time, fast and accurately the drilling fluid sample 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, practiced thrift 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 situation, to guarantee in twice adjacent test process, not omitting useful information 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 accompanying drawing and embodiment the present invention is further described:
Fig. 1 is a structure principle chart of the present invention;
Fig. 2 is the structural relation sketch map of online drilling fluid sampler among the present invention and probe apparatus;
Fig. 3 is the working state structure sketch map of online drilling fluid sampler among the present invention and probe apparatus;
Fig. 4 is a workflow sketch map 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: combine 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; Said online drilling fluid sampler 1 is made up of power pump extracting device and sampling line 3; Said power pump extracting device comprises the interlock valve 10 and kinetic pump 11 that is arranged on the drilling fluid pipeline 9, and the two ends of said sampling line 3 are connected through interlock valve 10 and kinetic pump 11 and drilling fluid pipeline 9 respectively.Said 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 said 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 said search coil 4 peripheries, specifically sees Fig. 2 and Fig. 3; And said 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 said control computer 6, and said 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 appearance; Below in conjunction with Fig. 1, Fig. 2 and shown in Figure 3 workflow of the present invention is 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; Open thereby drive interlock valve 10, the well logging on-site real-time extruded from the stratum and the drilling fluids that flow along drilling fluid pipeline 9 are pressed into sampling line 3, treat that drilling fluid is full of sampling line 3 after; 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 through 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 RF pulse signal; The drilling fluid sample produces NMR signal; This signal is received by search coil 4; And pass back to control computer 6 through signal transmitting and receiving changeover switch 5, small-signal amplifying device 8, accomplish 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 gathering completion, whole device gets into holding state, prepares sampling next time.And through the parameter setting in the said 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 then is compelled to flow back in the drilling fluid pipeline 9.Package unit repeats previous step new drilling fluid sample is carried out data acquisition under oil content of drilling fluid analyzing and testing control of software subsequently.
But the advantage by the invention of the foregoing description knowledge capital is following:
1. can guarantee in real time, fast and accurately the drilling fluid sample 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, practiced thrift 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 situation, 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 is merely the preferred embodiments of the present invention, can not limit the scope that the present invention implements 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); Said 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 said power pump extracting device; Said low field intensity nuclear magnetic resonance equipment (2) then comprises probe apparatus and spectrometer control device, and said 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 said search coil (4); And said 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 said 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 said sampling line (3) are connected with drilling fluid pipeline (9) through 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: said 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: said 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: said oil content of drilling fluid analyzing and testing software can be controlled the blanking time of adjacent double sampling through parameter is set.
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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
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
US9494503B2 (en) 2013-11-06 2016-11-15 Aspect Imaging Ltd. Inline rheology/viscosity, density, and flow rate measurement
WO2016116926A1 (en) 2015-01-19 2016-07-28 Aspect International (2015) Private Limited Nmr-based systems for crude oil enhancement and methods thereof
CN106053299B (en) 2015-04-12 2020-10-30 艾斯拜克特Ai有限公司 NMR imaging of fluids in non-circular cross-section conduits
CN106324010A (en) 2015-07-02 2017-01-11 艾斯拜克特Ai有限公司 Analysis of fluids flowing in a conduit using MR equipment
CN105275465B (en) * 2015-09-23 2018-06-19 中国石油大学(北京) Nuclear magnetic resonance logging system
US10655996B2 (en) 2016-04-12 2020-05-19 Aspect Imaging Ltd. System and method for measuring velocity profiles
CN106841269B (en) * 2017-01-12 2018-09-25 西南石油大学 A method of it is separated by solid-liquid separation using nuclear magnetic resonance evaluation rejected well drilling liquid
CN110412064B (en) * 2018-04-27 2023-03-17 中国石油化工股份有限公司 Drilling fluid nuclear magnetic resonance on-line measuring 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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