CN105804724A - Petroleum drilling supersonic liquid level monitoring device - Google Patents
Petroleum drilling supersonic liquid level monitoring device Download PDFInfo
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- CN105804724A CN105804724A CN201410837099.0A CN201410837099A CN105804724A CN 105804724 A CN105804724 A CN 105804724A CN 201410837099 A CN201410837099 A CN 201410837099A CN 105804724 A CN105804724 A CN 105804724A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract
The invention discloses a petroleum drilling supersonic liquid level monitoring device, and relates to the technical field of petroleum drilling liquid level detection equipment. The petroleum drilling supersonic liquid level monitoring device comprises a ground control device and a supersonic liquid level detector. The ground control device comprises a power supply, a data collector, a controller, a display and a trigger, and the data collector, the trigger and the display are all electrically connected with the controller. The supersonic liquid level detector comprises multiple groups of supersonic emission sensors and multiple groups of supersonic reception sensors, the supersonic emission sensors and the supersonic reception sensors are all connected to the data collector, the trigger is electrically connected to the data collector, and the trigger is also connected to the supersonic emission sensors and the supersonic reception sensors. Beneficial effects of the petroleum drilling supersonic liquid level monitoring device are that through received different signals, different time parameters and voltage pulse signal states are distinguished and identified to determine whether gas or mud medium is on the depth under the shaft, and therefore operators on the ground can be guided to carry out corresponding operation.
Description
Technical field
The present invention relates to the liquid level monitoring equipment of oil, gas drilling, more particularly, it relates to a kind of oil drilling ultrasonic liquid level monitoring device.
Background technology
When oil, natural gas exploration, exploitation drilling well, in order to cool down drill bit, implement jet drilling, and the rock that shaft bottom bit cutting gets off is cut take ground to from shaft bottom and will use drilling mud, additionally, can also pass through to adjust the density of drilling mud, making the mud fluid column of bore hole annulus and the pressure of down-hole balance each other, this balance is possible to prevent contingent gas blowout accident.In trip-out process, when mentioning drilling tool, pit shaft liquid level will decline, and its falling head is directly proportional to the quantity (length) of trip-out drilling rod, and the volume of the drilling mud that should supplement is also suitable with the volume of trip-out drilling rod, and injected in pit shaft by slurry prime device.
Conventional drilling mud device for casting includes master controller, the slurry tank of belt stirrer and leve monitor thereof, includes the filling mechanism of slush pump, motor, electric cabinet and flow transducer, overflow gigback.By manually calculating the drilling rod number tripped out when its method for filling is to pull out of hole, then perfusion instruction and the mud volume that need to inject is sent after input host process to filling mechanism, through slush pump and be located at its pumping hole flow transducer perform, metering, simultaneously information is returned feedback main frame to control its groundwater increment.
Under normal circumstances, mud pit flows out mud and the mud of inflow keep balance.If there is imbalance, will imply that and blowout or blind hole to occur.When in pit shaft, mud level declines will perfusion mud promptly and accurately, therefore the change in depth of monitor in real time downhole drill liquid level is very necessary.
In most cases, the liquid level monitoring under oil well is to carry out liquid level with artificial experience to judge to identify, can not accomplish to monitor liquid level in real time, neither science, also imprecise.
Mud pit level is measured, and prior art is usually a kind of float type level detector of on-the-spot employing and scale with a scale, it is necessary to driller carries out artificial observation, record and contrast, then judges whether overflow or leakage occur.Therefore, under normal circumstances, from slurry tank, pump should be of substantially equal with the mud amount returned from down-hole to the mud of down-hole, but when running into leakage, the mud returned from down-hole will seldom or completely lose and return, and at this moment the mud liquid level in slurry tank will rapid decrease；Or when running into high pressure that down-hole occurs suddenly and producing well kick, down-hole upwards pressure and the mud in down-hole annular will be promoted upwards to gush, and enters slurry tank, and at this moment in slurry tank, mud liquid level will quickly rise；When both of these case occurs, if can not find and take perfusion mudding or weighted mud to implement kill-job in time, will result in serious accident.In order to understand the height of liquid level in slurry tank in time, current basic skills is to arrange personnel to detect the liquid level in slurry tank at any time when boring and reaching predetermined level, also equipped with liquid level display on slurry tank, the other end of display is connected a float by tightrope, when liquid level is in the height of setting, just float is floated, reading on display is also in the position set, when liquid level declines or exceedes the height of setting, display will be hauled downwards or upwards demonstrate the liquid level of danger by float；Liquid level is carried out liquid level height by the employing sound wave also having or light to be tested, and measures and will report to the police when exceeding liquid level upper and lower spacing.The problem of these devices is at present: the former is connected by tightrope, and the liquid level therefore measured is inaccurate, sometimes it also occur that report by mistake；Although the latter have employed modern technologies, but all of device is all electronic product, the adverse circumstances of situ of drilling well are easily used to damaged, when particularly slurry tank being carried out, inevitably these electronic products are brought damage, and maintenance cost is also expensive, maintenance also have to professional and technical personnel just can complete.
Additionally slurry tank volume is big, and after there is well kick or leakage, the change of slurry tank liquid level is slowly, it is impossible to monitoring well kick and leakage accident delicately.Accordingly, it would be desirable to the system of a kind of monitoring mud quick, sensitive.
For the mud level in pit shaft, the domestic technology currently without mature and reliable carries out accurately real-time monitoring, more cannot directly utilize ultrasonic wave principle and carry out underground liquid level detection, especially can not accomplish contactless application.The research of liquid medium is also had by overseas utilization ultrasound wave.But due to drilling fluid (mud), especially oil-base mud is to hyperacoustic scattering and absorption characteristic, even if short distance transmission ultrasonic signal is all extremely difficult.
Summary of the invention
It is an object of the invention to effectively overcome the deficiency of above-mentioned technology, a kind of oil drilling ultrasonic liquid level monitoring device is provided, this device utilizes ultrasound wave to have the through characteristic that the characteristic of different spread speeds and gas, liquid, solid dielectric are different under different medium, and liquid level in pit shaft is monitored in real time.
The technical scheme is that and be achieved in that: it includes ground control unit and Ultrasonic Level Measurement Device, its principle and embodiment are in that:
Described ground control unit includes power supply, data acquisition unit, controller, display and trigger, and described data acquisition unit, trigger and display are all electrically connected with controller；
Described Ultrasonic Level Measurement Device includes many group ultrasonic emitting sensors and ultrasound wave receives sensor, described ultrasonic emitting sensor and ultrasound wave receive sensor and are connected on data acquisition unit, described trigger is electrically connected on data acquisition unit, and this trigger is additionally coupled to above-mentioned ultrasonic emitting sensor and ultrasound wave receives on sensor.Ultrasonic Level Measurement Device is followed inner sleeve and is gone into the well, and its lower drilling depth is required monitoring, test point liquid level (or gas) degree of depth, is therefore right
The real-time monitoring of drilling well liquid level.
Described power supply receives sensor be all electrically connected with described data acquisition unit, trigger, ultrasonic emitting sensor, ultrasound wave, is used for providing required electric energy.
Preferably, the upper end of described Ultrasonic Level Measurement Device is connected on inner sleeve, and lower end is connected on box cupling, and the lower end of box cupling is then connected with another joint inner sleeve.
Preferably, described Ultrasonic Level Measurement Device also includes supporting cover for seat and ultrasonic emitting reception surface-mounted integrated circuit, described ultrasonic emitting sensor receives the both sides being arranged at support block set that sensor is relative with ultrasound wave, support block set has the special-shaped slot being connected with inner sleeve, described ultrasonic emitting sensor and ultrasound wave reception sensor and is all electrically connected at ultrasonic emitting and receives on surface-mounted integrated circuit.
In above-mentioned structure, described Ultrasonic Level Measurement Device being connected to steel pipe type cable, the other end of steel pipe type cable is connected on power supply and data acquisition unit.
In above-mentioned structure, the outer surface of described inner sleeve being provided with cable clip and electric cable protector, described cable clip is for fastening above-mentioned steel pipe type cable, and cable is got up protective effect by electric cable protector.
In above-mentioned structure, described Ultrasonic Level Measurement Device also includes standby ultrasonic emitting sensor and standby ultrasound wave receives sensor.
The beneficial effects of the present invention is: the oil drilling ultrasonic liquid level monitoring device of the present invention is the characteristic and the gas that utilize ultrasound wave to have different spread speeds under different medium, liquid, the through characteristic that solid dielectric is different, oil down-hole drilling fluids (being commonly called as mud) liquid level is monitored, threaded by with oil inner sleeve, the well depth that Ultrasonic Level Measurement Device is monitored down to needs, by to ground control signal, trigger the ultrasonic emitting sensor in instrument, send ultrasonic signal, and at the opposite side of instrument, the ultrasound wave arranging same frequency receives sensor, receive corresponding ultrasonic signal；By the unlike signal received, make a distinction identification from the difference of time parameter and voltage pulse signal state, judge that under this degree of depth of down-hole be gas or mud medium on earth, such that it is able to instruct ground operator to operate accordingly；According to the design factor such as well depth, sleeve pipe, it is respectively provided with two groups of ultrasonic sensors below ground ten to five ten meters and 2 hundred to five hundred meters, in trip-out process, when detect be gas in upper and lower two groups of ultrasonic sensor present position sleeve pipes time, then starting perfusion mud in tubing string, when infusion time exceedes certain time, top ultrasonic sensor still can not detect the mud in sleeve pipe, there is leakage in explanation, can and alarm leak stopping；When top ultrasonic sensor detects the mud in sleeve pipe, then stop perfusion；Whole process computer realizes automatically controlling.
[accompanying drawing explanation]
Fig. 1 is principles of the invention block diagram；
Fig. 2 is specific embodiments of the invention figure；
Fig. 3 is principles of the invention figure.
[detailed description of the invention]
Below in conjunction with drawings and Examples, the invention will be further described.
With reference to shown in Fig. 1, the oil drilling ultrasonic liquid level monitoring device that the present invention discloses, this device is used for judging that down-hole certain depth is gas or mud medium on earth, such that it is able to instruct ground operator to operate accordingly.
Concrete, shown in Fig. 3, the oil of the present invention creeps into supersonic liquid level detecting device and includes ground control unit and Ultrasonic Level Measurement Device, wherein, ground control unit includes power supply 10, data acquisition unit 20, controller 30, display 40 and trigger 50, and data acquisition unit 20, trigger 50 and display 40 are all electrically connected with controller 30；Ultrasonic Level Measurement Device 90 includes many group ultrasonic emitting sensors 60 and ultrasound wave receives sensor 70, described ultrasonic emitting sensor 60 and ultrasound wave receive sensor 70 and are connected on data acquisition unit 20, described trigger 50 is electrically connected on data acquisition unit 20, and this trigger 50 is additionally coupled to above-mentioned ultrasonic emitting sensor 60 and ultrasound wave receives on sensor 70, shown in Fig. 2, being connected to steel pipe type cable 901 on Ultrasonic Level Measurement Device 90, the other end of steel pipe type cable 901 is connected on power supply 10 and data acquisition unit 20.Power supply 10 receives sensor 70 be all electrically connected with described data acquisition unit 20, trigger 50, ultrasonic emitting sensor 60, ultrasound wave, is used for providing required electric energy.Ultrasonic Level Measurement Device 90 also includes standby ultrasonic emitting sensor and standby ultrasound wave receives sensor.
Shown in Fig. 2, it is a specific embodiment of the present invention, in the present embodiment, the upper end of Ultrasonic Level Measurement Device 90 is connected on inner sleeve 902, lower end is connected on box cupling 903, and the lower end of box cupling 903 is then connected with another joint inner sleeve 902, in this way multiple Ultrasonic Level Measurement Devices 90 are coupled together.Ultrasonic Level Measurement Device 90 also includes supporting cover for seat and ultrasonic emitting reception surface-mounted integrated circuit (not indicating in figure), ultrasonic emitting sensor 60 receives the both sides being arranged at support block set that sensor 70 is relative with ultrasound wave, support block set has the special-shaped slot being connected with inner sleeve, described ultrasonic emitting sensor 60 and ultrasound wave reception sensor 70 and is all electrically connected at ultrasonic emitting and receives on surface-mounted integrated circuit；Being provided with cable clip 904 and electric cable protector 905 on the outer surface of inner sleeve 902, described cable clip 904 is for fastening above-mentioned steel pipe type cable 901, and cable is got up protective effect by electric cable protector 905.
Shown in Fig. 3, work process and the principle of the oil drilling ultrasonic liquid level monitoring device of the present invention are described in detail by we, Snell's law according to sound wave: ultrasound wave is oblique when being mapped to interface, there is following relationship (reflected refraction law): sin α/C between the echo of its generation, refracted wave and the angle of incidence wave1=sinβ/C2.Wherein α is the angle of incidence of the first medium, and β is the refraction angle of the second medium.C1For the propagation rate of the first medium, C2Propagation rate for the second medium.
The principle of the downhole ultrasonic Level Detection in 3 with reference to the accompanying drawings, we can assume that the incident angle α of ultrasonic emitting, and C1For ultrasound wave shear wave propagation speed in metal canula material；C2For ultrasound wave propagation rate in mud (or air).Above parameter can be determined, therefore we can calculate β value, and namely ultrasound wave enters the refraction angle of mud (or air) medium after Steel Casing reflects.
Path 1, ultrasonic emitting sensor receives sensor 1 to ultrasound wave, for having the hyperacoustic transmission situation of mud without drilling rod in sleeve pipe.
Path 2, ultrasonic emitting sensor receives sensor 2 to ultrasound wave, for there being drilling rod to have the situation of mud in sleeve pipe.
When in sleeve pipe without mud, due to the aerial rapid decay of high-frequency ultrasonic, ultrasound wave receives sensor 1 and reception sensor 2 does not all receive signal.
Utilize the through characteristic that hyperacoustic characteristic under different medium with different spread speeds and gas, liquid, solid dielectric are different, can carry out oil down-hole drilling fluids and air dielectric are judged, thus to specifically monitored point being whether mud level or air dielectric judges, thus reaching the purpose of liquid level monitoring.The present invention, by the unlike signal received, makes a distinction identification from the difference of time parameter and voltage pulse signal state, judges that under this degree of depth of down-hole be gas or mud medium on earth, such that it is able to instruct ground operator to operate accordingly.
Described above is only presently preferred embodiments of the present invention, and above-mentioned specific embodiment is not limitation of the present invention.In the technological thought category of the present invention, it is possible to various deformation and amendment occur, retouching, amendment or the equivalent replacement that all those of ordinary skill in the art make as described above, belong to the scope that the present invention protects.
Claims (6)
1. an oil drilling ultrasonic liquid level monitoring device, it includes ground control unit and Ultrasonic Level Measurement Device, it is characterised in that:
Described ground control unit includes power supply, data acquisition unit, controller, display and trigger, and described data acquisition unit, trigger and display are all electrically connected with controller；
Described Ultrasonic Level Measurement Device includes many group ultrasonic emitting sensors and ultrasound wave receives sensor, described ultrasonic emitting sensor and ultrasound wave receive sensor and are connected on data acquisition unit, described trigger is electrically connected on data acquisition unit, and this trigger is additionally coupled to above-mentioned ultrasonic emitting sensor and ultrasound wave receives on sensor；
Described power supply receives sensor be all electrically connected with described data acquisition unit, trigger, ultrasonic emitting sensor, ultrasound wave, is used for providing required electric energy.
2. a kind of oil drilling ultrasonic liquid level monitoring device according to claim 1, it is characterised in that: the upper end of described Ultrasonic Level Measurement Device is connected on inner sleeve, and lower end is connected on box cupling, and the lower end of box cupling is then connected with another joint inner sleeve.
3. a kind of oil drilling ultrasonic liquid level monitoring device according to claim 2, it is characterized in that: described Ultrasonic Level Measurement Device also includes supporting cover for seat and ultrasonic emitting reception surface-mounted integrated circuit, described ultrasonic emitting sensor receives the both sides being arranged at support block set that sensor is relative with ultrasound wave, support block set has the special-shaped slot being connected with inner sleeve, described ultrasonic emitting sensor and ultrasound wave reception sensor and is all electrically connected at ultrasonic emitting and receives on surface-mounted integrated circuit.
4. a kind of oil drilling ultrasonic liquid level monitoring device according to claim 1, it is characterised in that: being connected to steel pipe type cable on described Ultrasonic Level Measurement Device, the other end of steel pipe type cable is connected on power supply and data acquisition unit.
5. a kind of oil drilling ultrasonic liquid level monitoring device according to claim 1; it is characterized in that: the outer surface of described inner sleeve is provided with cable clip and electric cable protector; described cable clip is for fastening above-mentioned steel pipe type cable, and cable is got up protective effect by electric cable protector.
6. a kind of oil drilling ultrasonic liquid level monitoring device according to claim 1, it is characterised in that: described Ultrasonic Level Measurement Device also includes standby ultrasonic emitting sensor and standby ultrasound wave receives sensor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410837099.0A CN105804724B (en) | 2014-12-29 | 2014-12-29 | Ultrasonic liquid level monitoring device for petroleum drilling |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410837099.0A CN105804724B (en) | 2014-12-29 | 2014-12-29 | Ultrasonic liquid level monitoring device for petroleum drilling |
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| CN105804724A true CN105804724A (en) | 2016-07-27 |
| CN105804724B CN105804724B (en) | 2023-08-22 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340033A (en) * | 2017-07-19 | 2017-11-10 | 中国科学院寒区旱区环境与工程研究所 | A kind of Frozen Ground Area heat-pipe working medium liquid level sensor based on sound wave reflection |
| CN108430025A (en) * | 2018-03-07 | 2018-08-21 | 维沃移动通信有限公司 | A kind of detection method and mobile terminal |
| CN108487901A (en) * | 2018-05-23 | 2018-09-04 | 大庆市亿动科技有限公司 | Oil well multi-functional automatic liquid level monitor based on velocity of sound sensor |
| CN111577249A (en) * | 2020-04-28 | 2020-08-25 | 中国石油大学(华东) | Multi-sensor layout downhole drill string operation attitude measuring instrument |
| CN113586033A (en) * | 2021-08-05 | 2021-11-02 | 思凡(上海)石油设备有限公司 | Gas detection device for logging |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1292088A (en) * | 1998-01-06 | 2001-04-18 | 施卢默格海外有限公司 | Method and apparatus for ultrasonic imaging of cased well |
| CN2760228Y (en) * | 2004-08-20 | 2006-02-22 | 西安石油大学 | A leak hunting apparatus for drilling fluid |
| US20060101916A1 (en) * | 2002-12-31 | 2006-05-18 | Roger Griffiths | Method and apparatus for ultrasound velocity measurements in drilling fluids |
| CN103063274A (en) * | 2012-12-25 | 2013-04-24 | 天津大学 | Piezoelectric transducer downhole liquid level measuring instrument |
| CN103776499A (en) * | 2014-02-07 | 2014-05-07 | 中国科学院南海海洋研究所 | In-situ ultrasonic measurement system for seepage flow of seafloor cold spring natural gas |
| CN204591261U (en) * | 2014-12-29 | 2015-08-26 | 何建辉 | A kind of oil drilling ultrasonic liquid level monitoring device |
-
2014
- 2014-12-29 CN CN201410837099.0A patent/CN105804724B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1292088A (en) * | 1998-01-06 | 2001-04-18 | 施卢默格海外有限公司 | Method and apparatus for ultrasonic imaging of cased well |
| US20060101916A1 (en) * | 2002-12-31 | 2006-05-18 | Roger Griffiths | Method and apparatus for ultrasound velocity measurements in drilling fluids |
| CN2760228Y (en) * | 2004-08-20 | 2006-02-22 | 西安石油大学 | A leak hunting apparatus for drilling fluid |
| CN103063274A (en) * | 2012-12-25 | 2013-04-24 | 天津大学 | Piezoelectric transducer downhole liquid level measuring instrument |
| CN103776499A (en) * | 2014-02-07 | 2014-05-07 | 中国科学院南海海洋研究所 | In-situ ultrasonic measurement system for seepage flow of seafloor cold spring natural gas |
| CN204591261U (en) * | 2014-12-29 | 2015-08-26 | 何建辉 | A kind of oil drilling ultrasonic liquid level monitoring device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340033A (en) * | 2017-07-19 | 2017-11-10 | 中国科学院寒区旱区环境与工程研究所 | A kind of Frozen Ground Area heat-pipe working medium liquid level sensor based on sound wave reflection |
| CN108430025A (en) * | 2018-03-07 | 2018-08-21 | 维沃移动通信有限公司 | A kind of detection method and mobile terminal |
| CN108430025B (en) * | 2018-03-07 | 2020-06-19 | 维沃移动通信有限公司 | Detection method and mobile terminal |
| CN108487901A (en) * | 2018-05-23 | 2018-09-04 | 大庆市亿动科技有限公司 | Oil well multi-functional automatic liquid level monitor based on velocity of sound sensor |
| CN111577249A (en) * | 2020-04-28 | 2020-08-25 | 中国石油大学(华东) | Multi-sensor layout downhole drill string operation attitude measuring instrument |
| CN113586033A (en) * | 2021-08-05 | 2021-11-02 | 思凡(上海)石油设备有限公司 | Gas detection device for logging |
| CN113586033B (en) * | 2021-08-05 | 2023-09-26 | 思凡(上海)石油设备有限公司 | Gas detection device for logging |
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| CN105804724B (en) | 2023-08-22 |
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