CN214499026U - Multi-parameter drill bit measurement while drilling device - Google Patents
Multi-parameter drill bit measurement while drilling device Download PDFInfo
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- CN214499026U CN214499026U CN202122295441.7U CN202122295441U CN214499026U CN 214499026 U CN214499026 U CN 214499026U CN 202122295441 U CN202122295441 U CN 202122295441U CN 214499026 U CN214499026 U CN 214499026U
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Abstract
The utility model relates to an oil drilling well logging field especially relates to a multi-parameter drill bit is along with boring measuring device. The measuring nipple is mainly formed by sequentially connecting a drill bit, a measuring nipple, a screw motor and a receiving nipple from bottom to top, and a resistivity transmitting antenna, a first receiving antenna, a second receiving antenna, a measuring nipple microcontroller, a battery power supply, a resistivity receiving circuit, a resistivity transmitting circuit, a well deviation measuring module, an azimuth gamma measuring module, a wireless transmitting module and an electromagnetic wave transmitting antenna are arranged on a measuring nipple body. The receiving short section body is provided with a power supply circuit, an electromagnetic wave receiving antenna, a signal amplifying circuit, a signal filtering circuit, an AD conversion circuit and a receiving short section microcontroller. The utility model discloses a plurality of stratum parameters of measurable quantity, no blind area can comparatively accurate real-time geological direction, judges the drill bit and locates the position in the stratum.
Description
Technical Field
The utility model relates to an oil drilling logging device field specifically is a multi-parameter drill bit is along with boring measuring device.
Background
With the continuous development of oil and gas development technology, low-hole, low-permeability and thin-layer horizontal wells are developed more and more. The measurement sensors of the conventional LWD while-drilling electromagnetic wave resistivity instrument are arranged in a non-magnetic drill collar above a drill rod far away from a drill bit, the detection range is limited above a screw rod, and a large blind area exists during measurement while drilling, so that the detection precision is reduced, the measured attitude parameters, formation information and borehole parameters are deviated from the actual information of the drill bit, and particularly for thin oil layers, the conventional while-drilling instrument cannot meet the measurement requirements.
At present, although a conventional LWD (logging while drilling) electromagnetic wave resistivity instrument is improved and a measurement blind area is reduced, a near-bit instrument commonly used in the market still has the problems of few measurement parameters, insufficient measurement precision and poor reliability, and cannot meet the actual requirement of ultra-thin stratum development.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a multi-parameter drill bit measurement while drilling device that measurement parameter is many, measurement accuracy is high to the not enough of prior art.
In order to achieve the above purpose, the utility model provides the following technical scheme:
the utility model provides a multi-parameter drill bit is along with boring measuring device, mainly connects gradually from bottom to top by drill bit, measurement nipple joint, screw motor and receipt nipple joint and constitutes, wherein:
the resistivity transmitting antenna, the measuring nipple groove, the first receiving antenna and the second receiving antenna are sequentially embedded in the outer circumferential surface of the measuring nipple body from bottom to top; and a measuring short section microcontroller, a battery power supply, a resistivity receiving circuit, a resistivity transmitting circuit, a well deviation measuring module, a direction gamma measuring module, a wireless transmitting module and an electromagnetic wave transmitting antenna which are electrically connected with the measuring short section microcontroller respectively are installed in the measuring short section groove.
The utility model discloses a nipple joint of receiving is provided with the embedding of receiving nipple joint body outer periphery and is provided with receiving nipple joint recess, be provided with power supply circuit and electromagnetic wave receiving antenna in the receiving nipple joint recess, signal amplification circuit, signal filter circuit, AD converting circuit, receiving nipple joint microcontroller, wherein power supply circuit respectively with signal amplification circuit, signal filter circuit, AD converting circuit and receiving nipple joint microcontroller electric connection, electromagnetic wave receiving antenna in proper order with signal amplification circuit, signal filter circuit, AD converting circuit and receiving nipple joint microcontroller electric connection.
The above scheme further comprises:
the resistivity transmitting antenna alternately transmits two signals with different frequencies, wherein the transmitting frequency is between 0.1MHz and 10 MHz; the first receiving antenna and the second receiving antenna respectively correspond to two different frequency signals alternately transmitted by the resistivity transmitting antenna, and the measuring short section microcontroller respectively calculates the amplitude attenuation resistivity and the phase resistivity of the signals of the two frequencies.
The shell of measuring the nipple joint adopts no magnetism stainless steel material to make, measures the nipple joint recess and sets up to 5 to the outer periphery that evenly imbeds and distributes at measuring the nipple joint, the outside one side embedding of measuring the nipple joint is installed data and is read the interface fast.
The battery power supply comprises a battery pack, a fuse and a diode which are respectively and electrically connected with the resistivity receiving circuit, the resistivity transmitting circuit, the well deviation measuring module, the azimuth gamma measuring module and the wireless transmitting module (228).
The number of the receiving short section grooves is 3, and the receiving short sections are uniformly embedded and distributed on the circumferential surface of the receiving short section.
The power supply circuit controls the power supply circuit to be switched on and off through the electromagnetic switch.
The utility model discloses a multi-parameter drill bit is along with boring measuring device compares in traditional conventional LWD along with boring electromagnetic wave resistivity instrument, has following beneficial effect:
1. the measuring short section of the measuring device is arranged at the position of a drill bit, and no measuring blind area exists;
2. the measuring device has abundant geological information and can measure a plurality of parameters, such as: resistivity, azimuthal gamma, well inclination, temperature, drilling tool pressure, annulus pressure, etc.;
3. the measuring device has the advantages of good anti-vibration performance, high measuring precision, visual imaging, large detection range and quick and convenient maintenance, really realizes real-time geological guiding, helps field personnel to monitor the change condition of geological parameters at any time, and identifies lithology in real time and judges whether the drill bit meets an oil layer or not.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is an overall block diagram of a measurement system according to an embodiment of the present invention;
fig. 3 is a schematic circuit block diagram of a measuring nipple according to an embodiment of the present invention;
fig. 4 is a schematic block diagram of a circuit of a receiving sub according to an embodiment of the present invention;
fig. 5 is a schematic block diagram of a power circuit according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a resistivity transmitting and receiving signal according to an embodiment of the present invention.
In the figure: 1. a drill bit; 2. measuring the short section; 210. a resistivity transmitting antenna; 220. measuring a short section groove; 221. an electromagnetic wave transmitting antenna; 222. a measuring short section microcontroller; 223. a battery power source; 224. a resistivity receiving circuit; 225. a resistivity transmitting circuit; 226. a well deviation measurement module; 227. an orientation gamma measuring module; 228. a wireless transmitting module; 230. a first receiving antenna; 240. a second receiving antenna; 3. a screw motor; 4. receiving a short section; 410. receiving a nipple groove; 411. a power supply circuit; 412. an electromagnetic wave receiving antenna; 413. and receiving the short section microcontroller.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings and specific embodiments, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1, the multi-parameter drill bit measurement while drilling device comprises a drill 1, a measurement short section 2, a screw motor 3 and a receiving short section 4. The measuring nipple 2 is arranged between the screw motor 3 and the drill bit 1; and the receiving nipple 4 is arranged at the other side of the screw motor 3.
Referring to fig. 3, the gauging sub 2 includes a resistivity transmitting antenna 210, a resistivity first receiving antenna 230 and a resistivity second receiving antenna 240, a gauging sub groove 220, and an electromagnetic wave transmitting antenna 221, a gauging sub microcontroller 222, a battery power supply 223, a resistivity receiving circuit 224, a resistivity transmitting circuit 225, a well deviation gauging module 226, an azimuth gamma gauging module 227 and a wireless transmitting module 228 disposed inside the gauging sub groove 220.
Referring to fig. 4, the receiving sub 4 includes a receiving sub groove 410, and a power circuit 411, an electromagnetic wave receiving antenna 412, a receiving sub microcontroller 413, and associated circuits for signal amplification, signal filtering (or called digital filter), and AD conversion (or called de-encoder) that are disposed inside the receiving sub groove 410.
The resistivity transmitting antenna 210 alternately transmits two signals with different frequencies, wherein the transmitting frequency is 0.1 MHz-10 MHz; the first receiving antenna 230 and the second receiving antenna 240 respectively receive signals of two different frequencies, and the measuring pup joint microcontroller 222 respectively calculates amplitude attenuation resistivity and phase resistivity of the signals of the two frequencies; the calculation results of the two frequency signals can complement and check each other.
The shell of the measuring short section 2 is made of non-magnetic stainless steel materials, and 5 measuring short section grooves 220 are uniformly distributed on the circumferential surface of the measuring short section 2; the quick data reading interface is installed in the outside one side embedding of measurement nipple 2, can realize measuring nipple data through this interface and read. The battery power supply 223 is formed by connecting lithium battery packs in series and then connecting the lithium battery packs through fuses and diodes, and provides 21.6V direct-current voltage.
The number of the receiving nipple grooves 410 is 3, and the grooves are uniformly distributed on the circumferential surface of the receiving nipple 4. The power supply circuit 411 controls the power supply circuit to be turned on and off through an electromagnetic switch.
The azimuth gamma measuring module and the well deviation measuring module adopt universal modules, can simultaneously record stratum gamma data and angle data of a plurality of different sectors, and generate a track imaging graph.
Example 2
Referring to fig. 1, a multi-parameter drill bit measurement while drilling device mainly comprises a drill bit 1, a measurement short section 2, a screw motor 3 and a receiving short section 4 which are sequentially connected to form an integral structure. The measuring short section 2 of the measuring device is arranged at a position close to the drill bit 1, a measuring blind area is avoided, and the measuring range and the response speed of the measuring device are greatly improved.
Measure nipple joint recess 220 and set up 5, each is measured the even embedding of nipple joint recess 220 and is installed on the circumferential surface of measuring nipple joint 2, has guaranteed that each circuit module has sufficient installation space in the measuring nipple joint 2. Receiving nipple joint recess 410 sets up to 3, and the even embedding of each receiving nipple joint recess 410 is installed on the circumferential surface of receiving nipple joint 4, has guaranteed that each circuit module has sufficient installation space in the receiving nipple joint 4.
The resistivity measurement employs a resistivity transmitting antenna 210, a first receiving antenna 230, and a second receiving antenna 240. Resistivity transmitting antenna 210 is embedded in the circumferential surface of the measuring nipple 2 close to one side of the drill bit 1, first receiving antenna 230 and second receiving antenna 240 are sequentially embedded in the circumferential surface of the measuring nipple 2 far away from one side of the drill bit 1, and measuring nipple groove 220 is embedded in the circumferential surface of the measuring nipple 2 in the middle section. The resistivity transmitting antenna 210, the first receiving antenna 230 and the second receiving antenna 240 are all composed of a magnetic tube, a glass fiber reinforced plastic insulating sheet, a 12mm wide wear-resistant sheet and a sealed cabin, and are finally manufactured by complex processes of glue fixation. Wherein, the magnetic tube is wound with coils with different turns, and the sealed cabin is provided with a frequency selection network. The resistivity transmitting antenna 210, the first receiving antenna 230 and the second receiving antenna 240 are respectively distributed on the measuring sub 2 assembly in a circular surrounding mode at even intervals. Wherein the transmission frequency of the resistivity transmitting antenna 210 is 0.1MHz to 10 MHz. The measuring short section 2 adopts a non-magnetic stainless steel shell, the design size of the measuring short section 2 is smaller than one meter, the measuring short section 2 is used for collecting stratum parameters and transmitting stratum data in an electromagnetic wave wireless transmission mode, and the measuring short section 2 has the advantages of good vibration resistance, high measuring precision, large detection range and the like.
Referring to fig. 2, the whole data measurement system comprises two parts, namely a surface data acquisition system and a downhole data acquisition system. The ground data acquisition and processing system comprises a workstation, an explosion-proof box, a data acquisition and processing panel, a plotter, a measuring sensor, a driller display and the like. The downhole instrument comprises a pulse generator, a probe, a measuring short section 2, a wireless receiving short section 4 and the like. Besides, the data measurement system also comprises an instrument scale calibration device and a logging data real-time guiding interpretation evaluation system. When the system is applied to an actual field, a field operator can prepare for downhole construction after time service and other parameter setting are finished. After the measuring system works, various sensors of the measuring short section 2 measure underground signals to generate various sensor data, and the measured sensor data are wirelessly transmitted to the receiving short section 4 through electromagnetic waves; the receiving short section 4 sends the sensor data to the probe and the pulse generator; the pulser transmits sensor data to the surface system in the form of mud pulses.
Referring to fig. 1 and 3, gauging sub 2 includes a resistivity transmitting antenna 210, a first receiving antenna 230, a second receiving antenna 240, and a gauging sub notch 220. An electromagnetic wave transmitting antenna 221, a measuring nipple microcontroller 222 and a battery power supply 223 are arranged in the measuring nipple groove 220, and a resistivity receiving circuit 224, a resistivity transmitting circuit 225, a well deviation measuring module 226, an azimuth gamma measuring module 227 and a wireless transmitting module 228 are further respectively arranged in the measuring nipple groove 220. And a data quick reading interface is embedded in one side of the outer part of the measuring short section 2, so that data transmission and program downloading can be conveniently carried out.
The azimuth gamma measuring module 227 has the advantages of small measurement zero length, rich collected information and the like. The azimuth gamma measuring module 227 can record formation gamma data of eight different sectors at the same time, and simultaneously generate a trajectory imaging graph by a data visualization method. The azimuth gamma measurement module 227 overcomes the defects of common near-bit geological steering, effectively measures the radioactive strength of the stratum in the drilling process, provides azimuth geological parameters for drilling engineering, distinguishes the lithology of an undisturbed stratum, further provides stratum information for geological steering, determines the position of a target layer and a stratum interface in real time, and timely adjusts the track of a borehole. Due to the limitation of design space, the azimuth gamma probe abandons the Geiger mode of a common resistivity-while-drilling and gamma instrument, and adopts a crystal and a photomultiplier, thereby greatly shortening the length of the measuring nipple 2. The deviation measurement module 226 may be implemented by using the existing module technology, for example, the deviation measurement nipple disclosed in the CN106014384A patent, and may measure parameters such as deviation direction and angle in real time.
Referring to fig. 4, the receiving sub 4 includes a receiving sub groove 410, and a power circuit 411, an electromagnetic wave receiving antenna 412, a receiving sub microcontroller 413, signal amplification, a digital filter (signal filtering), a codec, and AD conversion, which are disposed inside the receiving sub groove 410. In order to ensure the normal operation of the power circuit 411, the power circuit 411 is embedded and installed inside the receiving nipple groove 410, and the power circuit 411 controls the on and off of the power supply circuit through an electromagnetic relay. 3-5 receiving nipple grooves 410 are uniformly distributed on the circumferential surface of the receiving nipple 4, and an electromagnetic wave receiving antenna 412 is embedded in the receiving nipple grooves 410; the digital filter and the de-encoder are written by an algorithm program, and the digital filter and the software de-encoder are downloaded into the short section receiving microcontroller 413 through a program downloader, so that the digital filter is arranged inside the short section receiving microcontroller 413, and the de-encoder is arranged inside the short section receiving microcontroller 413.
The receiving short section 4 is powered by a power supply circuit 411, receives signals through an electromagnetic wave receiving antenna 412, and performs signal amplification operation on the received signals through an operational amplifier circuit; reading in a receiving signal by using an analog port of a receiving short section microcontroller 413; a digital filter in the short-section receiving microcontroller 413 is adopted to carry out digital filtering on the received signals, so that signal noise is filtered, and the quality of the received signals is improved; an AD conversion module in the receiving short section microcontroller 413 is adopted to convert the received signal from analog quantity to digital quantity; the signal is processed by the receiving short section microcontroller 413, and finally the receiving short section microcontroller 413 and the probe tube transmit and receive signals.
The signal filtering adopts a finite impulse response Filter (FIR) in a digital filter, and the filtering coefficient is dynamically converted according to the signal quality so as to achieve the optimal filtering effect. The de-encoder mainly realizes the decoding function, and can automatically adjust the threshold value according to the background noise level of the signal, thereby improving the decoding success rate and further reducing the error rate in the decoding process. The AD conversion adopts an analog-to-digital conversion module, the input end of the AD conversion module is connected with an analog signal processing circuit, and the output end of the AD conversion module is connected with a serial port of the receiving short section microcontroller 413. The information data decoded by the de-encoder is further encoded and driven to be sent to the probe and the pulse generator, and is transmitted to the surface system in the form of mud pulse.
Referring to fig. 5, to provide sufficient power supply to the measuring device, a non-rechargeable lithium battery pack is used as a power battery. Meanwhile, in order to improve the safety and the reliability, each group of lithium battery pack is formed by connecting six batteries, one fuse and one diode in series; and the three groups of lithium battery packs are connected in parallel to improve the capacity of the battery. Finally, the battery power supply 223 can provide 21.6V DC voltage for the measurement device, and then provide the required +5V, +12V, -12V and other power supply voltages for the circuit modules of the measurement device through the DC/DC conversion module.
Referring to fig. 6, resistivity transmitting antenna 210 alternately transmits two different frequency signals through power switch drive, transformer and signal matching under the control of gauging sub microcontroller 222. When the resistivity transmitting antenna 210 transmits electromagnetic waves once, the resistivity receiving circuit 224 calculates the amplitude attenuation resistivity and the phase resistivity of the signals of each frequency respectively through a matching transformer, frequency mixing processing, band-pass filtering, program control amplification and the like. The results of different frequencies calculated by the measuring short section microcontroller 222 can be used for comparison and verification, and can play a role in mutual complementation and mutual verification.
The phase difference of the electromagnetic waves detected by the first receiving antenna 230 and the second receiving antenna 240 can maintain good detection sensitivity and resolution in a wide range of resistivity and transmission frequency, and the detection sensitivity and resolution of the amplitude ratio decrease rapidly with the decrease of the resistivity and transmission frequency, so that the resistivity of the electromagnetic waves is provided based on the phase difference. Measurement range of electromagnetic wave resistivity instrument: 0.2-1000 ohm meters, in a low-resistance stratum, the resistivity change reflected by the phase difference is more accurate, and the measurement accuracy of the resistivity of the high-resistance stratum is sharply reduced. The practical use experience is generally below 400 ohm meters, and the data reliability is high.
The basic principles and the main features of the present invention and the advantages of the present invention have been described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a multi-parameter drill bit is along with boring measuring device, mainly connects gradually from bottom to top by drill bit (1), measurement nipple joint (2), screw motor (3) and receipt nipple joint (4) and constitutes its characterized in that:
the resistivity transmitting antenna (210), the measuring short section groove (220), the first receiving antenna (230) and the second receiving antenna (240) are sequentially embedded in the outer circumferential surface of the measuring short section (2) from bottom to top, a measuring short section microcontroller (222), a battery power supply (223), a resistivity receiving circuit (224), a resistivity transmitting circuit (225), a well deviation measuring module (226), an azimuth gamma measuring module (227), a wireless transmitting module (228) and an electromagnetic wave transmitting antenna (221) are respectively and electrically connected with the measuring short section microcontroller (222) in the measuring short section groove (220);
the outer periphery embedding of receiving nipple joint (4) body is provided with receiving nipple joint recess (410), be provided with power supply circuit (411) and electromagnetic wave receiving antenna (412) in receiving nipple joint recess (410), signal amplification circuit, signal filter circuit, AD converting circuit, receiving nipple joint microcontroller (413), wherein power supply circuit (411) respectively with signal amplification circuit, signal filter circuit, AD converting circuit and receiving nipple joint microcontroller (413) electric connection, electromagnetic wave receiving antenna (412) in proper order with signal amplification circuit, signal filter circuit, AD converting circuit and receiving nipple joint microcontroller (413) electric connection.
2. The multi-parameter drill bit measurement-while-drilling apparatus of claim 1, wherein: the resistivity transmitting antenna (210) alternately transmits two signals with different frequencies, and the transmitting frequency is 0.1 MHz-10 MHz; the first receiving antenna (230) and the second receiving antenna (240) respectively correspond to two different frequency signals alternately transmitted by the resistivity transmitting antenna (210), and the measuring pup joint microcontroller (222) respectively calculates the amplitude attenuation resistivity and the phase resistivity of the signals of the two frequencies.
3. The multi-parameter drill bit measurement-while-drilling apparatus of claim 1 or 2, wherein: the shell of measuring nipple joint (2) adopts no magnetism stainless steel material to make, and measuring nipple joint recess (220) set up to 5 to evenly imbed the circumference surface that distributes at measuring nipple joint (2), measuring nipple joint (2) outside one side embedding and installing the interface is read fast to data.
4. The multi-parameter drill bit measurement-while-drilling apparatus of claim 3, wherein: the battery power supply (223) comprises a battery pack, a fuse and a diode which are respectively electrically connected with the resistivity receiving circuit (224), the resistivity transmitting circuit (225), the well deviation measuring module (226), the azimuth gamma measuring module (227) and the wireless transmitting module (228).
5. The multi-parameter drill bit measurement-while-drilling apparatus of claim 1, wherein: the number of the receiving short section grooves (410) is 3, and the receiving short section grooves are uniformly embedded and distributed on the circumferential surface of the receiving short section (4).
6. The multi-parameter drill bit measurement-while-drilling apparatus of claim 5, wherein: the power supply circuit (411) controls the on and off of the power supply circuit through an electromagnetic switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122295441.7U CN214499026U (en) | 2021-09-23 | 2021-09-23 | Multi-parameter drill bit measurement while drilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122295441.7U CN214499026U (en) | 2021-09-23 | 2021-09-23 | Multi-parameter drill bit measurement while drilling device |
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| Publication Number | Publication Date |
|---|---|
| CN214499026U true CN214499026U (en) | 2021-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122295441.7U Active CN214499026U (en) | 2021-09-23 | 2021-09-23 | Multi-parameter drill bit measurement while drilling device |
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| CN (1) | CN214499026U (en) |
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2021
- 2021-09-23 CN CN202122295441.7U patent/CN214499026U/en active Active
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