CN103233723B - Small-diameter electromagnetic flow comprehensive logging instrument - Google Patents
Small-diameter electromagnetic flow comprehensive logging instrument Download PDFInfo
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- CN103233723B CN103233723B CN201310175751.2A CN201310175751A CN103233723B CN 103233723 B CN103233723 B CN 103233723B CN 201310175751 A CN201310175751 A CN 201310175751A CN 103233723 B CN103233723 B CN 103233723B
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Abstract
The invention discloses a small-diameter electromagnetic flow comprehensive logging instrument which comprises an underground electromagnetic flow logging instrument and a ground logging control system. The underground electromagnetic flow logging instrument comprises a lower centering device, an electromagnetic flow meter, a hole diameter measuring instrument, a pressure and temperature measuring device, a data processing device and a cable connector. The ground logging control system comprises a cable winch, an underground instrument signal processing circuit, a ground processor module connected with the underground instrument signal processing circuit and an industrial control computer connected with the ground processor module, wherein an optical-electricity encoder is installed on the cable winch and is connected with the ground processor module. The small-diameter electromagnetic flow comprehensive logging instrument is compact in structure, reasonable in design, simple and convenient to operate, good in reliability, high in logging accuracy, good in using effect and convenient to popularize and use.
Description
Technical field
The present invention relates to a kind of logging instrument, especially relate to a kind of small-bore Electromagnetic Flow comprehensive logging instrument.
Background technology
In prior art, flow rate log has adopted turbine flowmeter more, and the sensor of turbine flowmeter is comprised of pivoted blade, and magnetic-flux-linkage or light tight key are housed on pivot, the very wear-resisting industrial sapphire of the general employing of bearing.Because the blade of turbine has certain inclination angle, when fluid flows through blade, can produce a rotating torque, make turbine rotation, due to special frame for movement, make turbine flowmeter must have certain start velocity just can make blade rotation, and cannot measure compared with low discharge; And turbine flowmeter is easily subject to the impact of the rock particles producing in the interior foreign material of well and drilling process, causes measure error to increase.In addition, when logging instrument can not accomplish that when strict placed in the middle, interpretation of logging data resultant error will be greatly; The explanation of flow rate log will be explained with reference to hole diameter and other hydrogeological logging curve generalization, just can draw correct result; In the situation that not knowing flowing temperature gradient, just can not understand well the relative size of the water content of each well section and full well section; And in prior art, these problems are not all well solved.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned deficiency of the prior art, provides a kind of small-bore Electromagnetic Flow comprehensive logging instrument, its compact conformation, reasonable in design, easy and simple to handle, good reliability, certainty of measurement is high, and result of use is good, is convenient to promote the use of.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of small-bore Electromagnetic Flow comprehensive logging instrument, it is characterized in that: comprise the underground electromagnetic flow logging instrument that is arranged on down-hole and arrange on the ground and the ground observing and controlling system that is connected and communicates by letter with underground electromagnetic flow logging instrument by communication cable, described underground electromagnetic flow logging instrument comprises the lower centralizer arranging from top to bottom successively, electromagnetic flowmeter, caliper logging instrument, pressure and temperature measuring equipment, data processing equipment and cable connector, described ground observing and controlling system comprises the cable reel for connecting communication cable, the underground instrument signal treatment circuit of the underground instrument signal obtaining for the processing of image data treating apparatus, the ground based processor module of joining with underground instrument signal treatment circuit and the industrial control computer joining with ground based processor module, photoelectric encoder for the speed of underground electromagnetic flow logging instrument is detected is installed on described cable reel, described photoelectric encoder and described ground based processor module are joined,
Described lower centralizer comprise righting rod, be connected to the guide head of described righting rod bottom and be arranged on place, described righting rod centre position and match formed diameter can be with multiple righting spring leafs of the elastic waist drum shape of well radius variations, on described righting rod, be symmetrically arranged with two righting mechanisms that can slide and two and be respectively used to the sliding position on righting rod to two righting mechanisms and carry out spacing interstage sleeve on righting rod, the two ends of described righting spring leaf are hinged with two described righting mechanisms respectively; The bottom of described electromagnetic flowmeter is threaded with the top of described righting rod;
Described caliper logging instrument comprises caliper logging instrument pillar and is sleeved on the inner tube of described caliper logging instrument pillar inside, and caliper logging mechanism, for promoting the recline backup mechanism of the borehole wall and for driving the actuating unit of described backup mechanism of described caliper logging mechanism, described actuating unit comprises motor, the reductor joining with motor output shaft, the leading screw joining with speed reducer output shaft and be threaded in the feed screw nut on described leading screw, on the inwall of described inner tube, be fixedly connected with to be useful on and feed screw nut moved on leading screw to lower stroke switch that lower end extreme position detects and for feed screw nut being moved to the upper stroke switch that upper end extreme position detects, on described feed screw nut, be fixedly connected with feeler lever, on described feeler lever, be fixedly connected with the contact matching with described upper stroke switch and lower stroke switch, the top of described inner tube is fixedly connected with and is useful on the motor cabinet that described reductor and motor are installed, on the inwall of described inner tube, bearing support is installed, bearing for supporting described leading screw is installed in described bearing support, described backup mechanism comprises the backup spring base that is sleeved on described inner tube inside, the top of described backup spring base is fixedly connected with many and reaches described feed screw nut side and can withstand on the backup spring on described feeler lever, and the bottom of described backup spring base is fixedly connected with connecting axle, described caliper logging mechanism comprises the caliper logging knee-joint head that is threaded with described inner tube bottom, is evenly hinged on many caliper logging arms on described caliper logging knee-joint head and is fixedly connected with on inner pipe and linear displacement transducer for the straight-line displacement amount of backup spring base is detected, on every described caliper logging arm, gear is all installed, the bottom thread of described connecting axle is connected with tooth bar mount pad, and the many corresponding tooth bars that match with multiple described gears are respectively installed on described tooth bar mount pad,
Described pressure and temperature measuring equipment comprise the transition joint of column, described transition joint inside is provided with the cavity of column, the intake-outlet that being provided with supply water inflow cavity or outflow cavity in described transition joint, described cavity inside two ends are respectively arranged with temperature pick up and pressure sensor; The bottom of described transition joint is threaded with described caliper logging instrument pillar;
Described data processing equipment comprises data processing equipment pillar and is arranged on the data processing circuit plate of data processing equipment pillar inside and the gaily decorated basket for installation data treatment circuit plate, the bottom of described data processing equipment pillar is threaded with described transition joint, the down hole processor module that is laid with signal acquisition circuit module on described data processing circuit plate and joins with signal acquisition circuit module, and motor-drive circuit module and the pulse driving circuit module of joining with described down hole processor module, described electromagnetic flowmeter, linear displacement transducer, temperature pick up and pressure sensor all join with described signal acquisition circuit module, described upper stroke switch and lower stroke switch all join with described down hole processor module, described motor and described motor-drive circuit module are joined, described communication cable joins by cable connector and described pulse driving circuit module.
Above-mentioned small-bore Electromagnetic Flow comprehensive logging instrument, it is characterized in that: described righting mechanism comprises the inner spring seat being sleeved on described righting rod and the outer spring seat being threaded with described inner spring seat, described outer spring seat matches and has formed multiple hinge holes with inner spring seat, one end of multiple described righting spring leafs respectively correspondence is hinged with the multiple hinge holes on righting mechanism described in one of them, and the other end of multiple described righting spring leafs respectively correspondence is hinged with the multiple hinge holes on righting mechanism described in another.
Above-mentioned small-bore Electromagnetic Flow comprehensive logging instrument, is characterized in that: described righting spring leaf is arcuate bombing leaf, and the quantity of described righting spring leaf is three, and the quantity of the hinge hole on corresponding each described righting mechanism is three.
Above-mentioned small-bore Electromagnetic Flow comprehensive logging instrument, is characterized in that: described gear is for semicircle, and the quantity of described caliper logging arm is three, and the quantity of corresponding described gear is three, and the quantity of corresponding described tooth bar is three.
Above-mentioned small-bore Electromagnetic Flow comprehensive logging instrument, it is characterized in that: in described inner tube, have gathering sill, on described feed screw nut, be fixedly connected with the guiding feather key matching with gathering sill, the bottom of described tooth bar mount pad is connected with sleeve pipe, on described sleeve pipe, be fixedly connected with electromagnetic flowmeter joint, the top of described electromagnetic flowmeter is connected with described electromagnetic flowmeter joint screw thread.
Above-mentioned small-bore Electromagnetic Flow comprehensive logging instrument, is characterized in that: between described data processing circuit plate and the described gaily decorated basket, be provided with cross-over block.
Above-mentioned small-bore Electromagnetic Flow comprehensive logging instrument, it is characterized in that: described down hole processor module mainly consists of single-chip microcomputer MSP430F157, described signal acquisition circuit module is by the amplifying circuit module of joining successively, filtering shaping circuit module and A/D change-over circuit module composition, and described A/D change-over circuit module integration is in described single-chip microcomputer MSP430F157 inside; Described temperature pick up is PN junction temperature pick up, and described pressure sensor is piezoresistive pressure sensor.
Above-mentioned small-bore Electromagnetic Flow comprehensive logging instrument, it is characterized in that: described pulse driving circuit module comprises chip LM324, polar capacitor C11, resistance R 1, R7, R13, R17, R18 and R19, and diode D6 and D8, the pin 3 of described chip LM324 joins with the output IO1 of down hole processor module by resistance R 19, the pin 2 of described chip LM324 joins with the output IO2 of down hole processor module by resistance R 18, the pin 1 of described chip LM324, pin 5, pin 10 and pin 12 all join by resistance R 17 and the pin 2 of chip LM324, the pin 6 of described chip LM324 and pin 7 all join by resistance R 13 and the positive pole of polar capacitor C11, the pin 8 of described chip LM324 and pin 9 all join by resistance R 7 and the positive pole of polar capacitor C11, the pin 13 of described chip LM324 and pin 14 all join by resistance R 1 and the positive pole of polar capacitor C11, the negative pole of the positive pole of the positive pole of described polar capacitor C11 and diode D6 and diode D8 joins, the pin 4 of described chip LM324 and the negative pole of diode D6 all join with+10V power supply, the pin 11 of described chip LM324 and the positive pole of diode D8 all join with-10V power supply, the negative pole of described polar capacitor C11 is the output OUT of described pulse driving circuit module.
Above-mentioned small-bore Electromagnetic Flow comprehensive logging instrument, it is characterized in that: described cable connector comprises the circular tube shaped round splce that is threaded in described data processing equipment pillar top and the noose that is sleeved on described round splce inside, the top of described round splce is provided with external screw thread, the bottom of described noose is threaded and is useful on round splce inner space and the separated seal receptacle of data processing equipment pillar, high-voltage plug has been threaded on described seal receptacle, the described gaily decorated basket is fixedly connected with seal receptacle, in described noose, be provided with connector assembly nut, connector assembly has been threaded on described connector assembly nut, on described connector assembly, aviation plug is installed, between described connector assembly and described noose, be provided with buffer spring, the output of described pulse driving circuit module is electrically connected with described high-voltage plug, and described high-voltage plug is electrically connected with described aviation plug, and described aviation plug is electrically connected with described communication cable.
Above-mentioned small-bore Electromagnetic Flow comprehensive logging instrument, it is characterized in that: described underground instrument signal treatment circuit is by the amplification and rectification circuit module of joining successively and serial-parallel conversion circuit module composition, and described ground based processor module mainly consists of single-chip microcomputer MSP430F1611.
The present invention compared with prior art has the following advantages:
1, compact conformation of the present invention, reasonable in design, and it is convenient to realize.
2, data processing equipment of the present invention has adopted the method for integrated circuit modules, has improved stability and the reliability of circuit, provides cost savings, and has advantages of that low in energy consumption, zero point stability, accuracy are high.
3, the present invention has adopted electromagnetic flowmeter, and antijamming capability is strong, measures reliably, and precision is high, can effectively reduce the interference of the grains of sand and stratum in well liquid, makes flow measuring data more stable.
4, caliper logging instrument of the present invention can record hole diameter data, can play again the effect of centralizer, then coordinates lower centralizer, can make logging instrument placed in the middle well.
5, the present invention has optimized the structure of time centralizer, can make instrument up and down freely, guarantees that instrument is relatively placed in the middle, carries out continuous measurement.
6, the present invention is a set of advanced person's high accuracy, the Electromagnetic Flow logging instrument of wide range, overcome conventional turbine flow meter and be subject to well liquid turbidity, well liquid suspension, well liquid impurity effect, the shortcomings such as measure error is large, turbine rotation is undesired, perishable, can meet the requirement of hydrology boring flow rate log.
7, machinery-free movable part of the present invention, start velocity is little and do not block the features such as sand, not affected by foreign material in well, has easy and simple to handle, good reliability, feature that certainty of measurement is high.
8, the present invention has overcome many influence factors of conventional turbine traffic logger substantially, to effectively solve the variation of flow rate log to the different intervals of boring rock stratum section different depth upper reaches amount, the computational problem of the hydrogeological parameters such as thickness, the degree of depth, the number of plies and zonal flow rate, transmission coefficient and the radius of influence in division aquifer.
In sum, compact conformation of the present invention, reasonable in design, easy and simple to handle, good reliability, certainty of measurement is high, and result of use is good, is convenient to promote the use of.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of centralizer under the present invention.
Fig. 3 is the structural representation of electromagnetic flowmeter of the present invention.
Fig. 4 is the structural representation of electromagnetic flowmeter joint of the present invention.
Fig. 5 is the structural representation of caliper logging mechanism of the present invention and backup mechanism.
Fig. 6 is the structural representation of actuating unit of the present invention.
Fig. 7 is the structural representation of pressure of the present invention and temperature measuring equipment.
Fig. 8 is the structural representation of data processing equipment of the present invention.
Fig. 9 is that underground electromagnetic flow logging instrument of the present invention is connected block diagram with the circuit of ground observing and controlling system.
Figure 10 is the circuit theory diagrams of pulse driving circuit module of the present invention.
Figure 11 is the structural representation of cable connector of the present invention.
Description of reference numerals:
1-lower centralizer; 1-1-righting rod; 1-2-guide head;
1-3-righting spring leaf; 1-4-interstage sleeve; 1-5-inner spring seat;
1-6-outer spring seat; 1-7-hinge hole; 2-electromagnetic flowmeter;
3-caliper logging instrument; 3-1-caliper logging instrument pillar; 3-2-inner tube;
3-3-motor; 3-4-reductor; 3-5-leading screw;
3-6-feed screw nut; 3-7-lower stroke switch; 3-8-upper stroke switch;
3-9-feeler lever; 3-10-contact; 3-11-motor cabinet;
3-12-bearing support; 3-13-bearing; 3-14-backup spring base;
3-15-backup spring; 3-16-connecting axle;
3-17-caliper logging knee-joint head; 3-18-caliper logging arm;
3-19-linear displacement transducer; 3-20-gear;
3-21-tooth bar mount pad; 3-22-tooth bar; 3-23-gathering sill;
3-24-guiding feather key; 3-25-shaft coupling; 4-temperature measuring equipment;
4-1-transition joint; 4-2-cavity; 4-3-intake-outlet;
4-4-temperature pick up; 4-5-pressure sensor; 5-data processing equipment;
5-1-data processing equipment pillar; 5-2-data processing circuit plate;
5-3-gaily decorated basket; 5-4-signal acquisition circuit module;
5-41-amplifying circuit module; 5-42-filtering shaping circuit module;
5-43-A/D change-over circuit module; 5-5-down hole processor module;
5-6-motor-drive circuit module; 5-7-pulse driving circuit module;
5-8-cross-over block; 6-cable connector; 6-1-round splce;
6-2-noose; 6-3-external screw thread; 6-4-seal receptacle;
6-5-high-voltage plug; 6-6-connector assembly nut; 6-7-connector assembly;
6-8-aviation plug; 6-9-buffer spring;
7-underground instrument signal treatment circuit; 7-1-amplification and rectification circuit module;
7-2-serial-parallel conversion circuit module; 8-ground based processor module;
9-industrial control computer; 10-photoelectric encoder; 11-sleeve pipe;
12-electromagnetic flowmeter joint.
The specific embodiment
As shown in Fig. 1 and Fig. 9, the present invention includes the underground electromagnetic flow logging instrument that is arranged on down-hole and arrange on the ground and the ground observing and controlling system that is connected and communicates by letter with underground electromagnetic flow logging instrument by communication cable, described underground electromagnetic flow logging instrument comprises the lower centralizer 1 arranging from top to bottom successively, electromagnetic flowmeter 2, caliper logging instrument 3, pressure and temperature measuring equipment 4, data processing equipment 5 and cable connector 6, described ground observing and controlling system comprises the cable reel for connecting communication cable, for image data treating apparatus 5, process the underground instrument signal treatment circuit 7 of the underground instrument signal obtaining, the ground based processor module 8 of joining with underground instrument signal treatment circuit 7 and the industrial control computer 9 joining with ground based processor module 8, photoelectric encoder 10 for the speed of underground electromagnetic flow logging instrument is detected is installed on described cable reel, described photoelectric encoder 10 joins with described ground based processor module 8,
As shown in Figure 2, described lower centralizer 1 comprises righting rod 1-1, be connected to described righting rod 1-1 bottom guide head 1-2 and be arranged on described place, righting rod 1-1 centre position and match formed diameter can be with multiple righting spring leaf 1-3 of the elastic waist drum shape of well radius variations, on described righting rod 1-1, being symmetrically arranged with two righting mechanisms that can slide on righting rod 1-1 and two is respectively used to the sliding position on righting rod 1-1 to two righting mechanisms and carries out spacing interstage sleeve 1-4, the two ends of described righting spring leaf 1-3 are hinged with two described righting mechanisms respectively, the bottom of described electromagnetic flowmeter 2 is threaded with the top of described righting rod 1-1, the setting of guide head 1-2, velocity-stabilization in the time of can making well liquid flow through this logging instrument, reduces external interference, makes survey data stable,
As shown in Figure 5 and Figure 6, described caliper logging instrument 3 comprises caliper logging instrument pillar 3-1 and is sleeved on the inner tube 3-2 of described caliper logging instrument pillar 3-1 inside, and caliper logging mechanism, for promoting the recline backup mechanism of the borehole wall and for driving the actuating unit of described backup mechanism of described caliper logging mechanism, described actuating unit comprises motor 3-3, the reductor 3-4 joining with motor 3-3 output shaft, the leading screw 3-5 joining with reductor 3-4 output shaft and be threaded in the feed screw nut 3-6 on described leading screw 3-5, on the inwall of described inner tube 3-2, be fixedly connected with to be useful on and feed screw nut 3-6 moved on leading screw 3-5 to lower stroke switch 3-7 that lower end extreme position detects and for feed screw nut 3-6 being moved to the upper stroke switch 3-8 that upper end extreme position detects, on described feed screw nut 3-6, be fixedly connected with feeler lever 3-9, on described feeler lever 3-9, be fixedly connected with the contact 3-10 matching with described upper stroke switch 3-8 and lower stroke switch 3-7, the top of described inner tube 3-2 is fixedly connected with and is useful on the motor cabinet 3-11 that described reductor 3-4 and motor 3-3 are installed, bearing support 3-12 is installed on the inwall of described inner tube 3-2, bearing 3-13 for supporting described leading screw 3-5 is installed in described bearing support 3-12, described backup mechanism comprises the backup spring base 3-14 that is sleeved on described inner tube 3-2 inside, the top of described backup spring base 3-14 is fixedly connected with many and reaches described feed screw nut 3-6 side and can withstand on the backup spring 3-15 on described feeler lever 3-9, and the bottom of described backup spring base 3-14 is fixedly connected with connecting axle 3-16, described caliper logging mechanism comprises the caliper logging knee-joint head 3-17 being threaded with described inner tube 3-2 bottom, evenly be hinged on many caliper logging arm 3-18 on described caliper logging knee-joint head 3-17 and be fixedly connected on inner tube 3-2 and the linear displacement transducer 3-19 for the straight-line displacement amount of backup spring base 3-14 is detected, on every described caliper logging arm 3-18, gear 3-20 is all installed, the bottom thread of described connecting axle 3-16 is connected with tooth bar mount pad 3-21, the many corresponding tooth bar 3-22 that match with multiple described gear 3-20 are respectively installed on described tooth bar mount pad 3-21, caliper logging instrument 3 not only has caliper logging function, also has upper righting function, matches with lower centralizer 1, can make logging instrument placed in the middle well,
As shown in Figure 7, described pressure and temperature measuring equipment 4 comprise the transition joint 4-1 of column, described transition joint 4-1 inside is provided with the cavity 4-2 of column, the intake-outlet 4-3 that being provided with supply water inflow cavity 4-2 or outflow cavity 4-2 on described transition joint 4-1, the inner two ends of described cavity 4-2 are respectively arranged with temperature pick up 4-4 and pressure sensor 4-5; The bottom of described transition joint 4-1 is threaded with described caliper logging instrument pillar 3-1;
As shown in Figure 8 and Figure 9, described data processing equipment 5 comprises data processing equipment pillar 5-1 and is arranged on the data processing circuit plate 5-2 of data processing equipment pillar 5-1 inside and the gaily decorated basket 5-3 for installation data treatment circuit plate 5-2, the bottom of described data processing equipment pillar 5-1 is threaded with described transition joint 4-1, the down hole processor module 5-5 that is laid with signal acquisition circuit module 5-4 on described data processing circuit plate 5-2 and joins with signal acquisition circuit module 5-4, and the motor-drive circuit module 5-6 and the pulse driving circuit module 5-7 that join with described down hole processor module 5-5, described electromagnetic flowmeter 2, linear displacement transducer 3-19, temperature pick up 4-4 and pressure sensor 4-5 all join with described signal acquisition circuit module 5-4, described upper stroke switch 3-8 and lower stroke switch 3-7 all join with described down hole processor module 5-5, described motor 3-3 and described motor-drive circuit module 5-6 join, described communication cable joins with described pulse driving circuit module 5-7 by cable connector 6.Data processing equipment pillar 5-1 has played the withstand voltage effect of waterproof.The upper circuit structure compactness of data processing circuit plate 5-2, perfect in shape and function, can meet the narrow demand in space in data processing equipment pillar 5-1, and can to the data that in electromagnetic flowmeter 2 and caliper logging instrument 3 cathetus displacement transducer 3-19 and pressure and temperature measuring equipment 4, temperature pick up 4-4 and pressure sensor 4-5 detect, gather and analyzing and processing simultaneously, signal acquisition circuit module 5-4 is to electromagnetic flowmeter 2, linear displacement transducer 3-19, the signal of temperature pick up 4-4 and pressure sensor 4-5 output amplifies, after filter shape and A/D conversion process, export to down hole processor module 5-5, the signal that down hole processor module 5-5 receives it carries out analyzing and processing, and by pulse driving circuit module 5-7, be transferred on communication cable after encoding under accurate SECO, by communication cable, be transferred to ground observing and controlling system again.
As shown in Figure 2, in the present embodiment, described righting mechanism comprises the inner spring seat 1-5 being sleeved on described righting rod 1-1 and the outer spring seat 1-6 being threaded with described inner spring seat 1-5, described outer spring seat 1-6 matches and has formed multiple hinge hole 1-7 with inner spring seat 1-5, one end of multiple described righting spring leaf 1-3 respectively correspondence is hinged with the multiple hinge hole 1-7 on righting mechanism described in one of them, and the other end of multiple described righting spring leaf 1-3 respectively correspondence is hinged with the multiple hinge hole 1-7 on righting mechanism described in another.Described righting spring leaf 1-3 is arcuate bombing leaf, and the quantity of described righting spring leaf 1-3 is three, and the quantity of the hinge hole 1-7 on corresponding each described righting mechanism is three.During concrete enforcement, described interstage sleeve 1-4 is bolted on righting rod 1-1, during use, inner spring seat 1-5 and outer spring seat 1-6 entirety can be free to slide on righting rod 1-1, and interstage sleeve 1-4 internally spring base 1-5 and the slip of outer spring seat 1-6 entirety on righting rod 1-1 are carried out spacing.During lower well measurements, under well casing effect, three righting spring leaf 1-3 shrink, and two interstage sleeve 1-4 move outward, due to the amount of contraction uniformity of three righting spring leaf 1-3, make whole comprehensive logging instrument can be good at centering, thereby play the effect of lower righting.
As shown in Figure 3, during concrete enforcement, described electromagnetic flowmeter 2 has adopted the two ends of outsourcing all to have externally threaded electromagnetic flowmeter, carry water inlet and delivery port, during measurement, water enters from water inlet, through flowing out from delivery port flow meter inside, water velocity in flow meter is with the size variation of the water yield, and electromagnetic flowmeter internal circuit is measured water velocity and got final product as calculated to obtain the flow value of water outlet.
As shown in Figure 5, in the present embodiment, described gear 3-20 is semicircle, and the quantity of described caliper logging arm 3-18 is three, and the quantity of corresponding described gear 3-20 is three, and the quantity of corresponding described tooth bar 3-22 is three.As shown in Figure 6, in the present embodiment, on described inner tube 3-2, have gathering sill 3-23, on described feed screw nut 3-6, be fixedly connected with the guiding feather key 3-24 matching with gathering sill 3-23, for feed screw nut 3-6 is led; As shown in Figure 1 and Figure 4, in the present embodiment, the bottom of described tooth bar mount pad 3-21 is connected with sleeve pipe 11, on described sleeve pipe 11, is fixedly connected with electromagnetic flowmeter joint 12, and the top of described electromagnetic flowmeter 2 is threaded with described electromagnetic flowmeter joint 12.During concrete enforcement, leading screw 3-5 joins by shaft coupling 3-25 and reductor 3-4 output shaft, many caliper logging arm 3-18 are all hinged on described caliper logging knee-joint head 3-17 by bearing pin, backup spring base 3-14 is fixedly connected with by key with connecting axle 3-16, and linear displacement transducer 3-19 has adopted the linear displacement transducer of outsourcing.During use, energising rear motor 3-3 rotates, reductor 3-4 increases moment of torsion, through shaft coupling 3-25, drive screw mandrel 3-5 to rotate, leading screw 3-5 becomes the rectilinear motion of feed screw nut 3-6 by rotatablely moving, feed screw nut 3-6 promotes backup spring 3-15 and drives backup spring base 3-14 motion, backup spring base 3-14 moves together with tooth bar 3-22 by connecting axle 3-16 band carry-over bar mount pad 3-21, respectively corresponding three the gear 3-20 of three toothed rack 3-22, when tooth bar 3-22 rectilinear motion, three caliper logging arm 3-18 open or closure around bearing pin separately, because three caliper logging arm 3-18 are driven by the same filament thick stick 3-5, so subtended angle and the folding of three caliper logging arm 3-18 are in the same size, can play centering centralizing function, played the effect of upper righting.Wherein, when feed screw nut 3-6 moves up and down on leading screw 3-5, to move up and down with together with contact 3-10 on feeler lever 3-9 with movable feeler lever 3-9, when feed screw nut 3-6 moves to lower end extreme position, contact 3-10 on feeler lever 3-9 has touched lower stroke switch 3-7, lower stroke switch 3-7 sends the signal feedback that puts in place to down hole processor module 5-5, the control signal that down hole processor module 5-5 output control motor 3-3 stops operating also stops operating by motor-drive circuit module 5-6 control motor 3-3, and feed screw nut 3-6 stops moving downward; When feed screw nut 3-6 moves to upper end extreme position, contact 3-10 on feeler lever 3-9 has touched upper stroke switch 3-8, upper stroke switch 3-8 sends the signal feedback that puts in place to down hole processor module 5-5, the control signal that down hole processor module 5-5 output control motor 3-3 stops operating also stops operating by motor-drive circuit module 5-6 control motor 3-3, and feed screw nut 3-6 stops moving upward.On the feeler lever of linear displacement transducer 3-19, be connected with spring, the end of spring is connected with contact, under the effect of spring, contact can move with backup spring base 3-14 all the time, the straight line variable quantity of backup spring base 3-14 is become to the signal of telecommunication and amplify, export to down hole processor module 5-5 after filter shape and A/D conversion process by signal acquisition circuit module 5-4, the signal that down hole processor module 5-5 receives it carries out analyzing and processing, obtains hole diameter size.
As shown in Figure 8, in the present embodiment, between described data processing circuit plate 5-2 and described gaily decorated basket 5-3, be provided with cross-over block 5-8.
As shown in Figure 9, in the present embodiment, described down hole processor module 5-5 mainly consists of single-chip microcomputer MSP430F157, in single-chip microcomputer MSP430F157 sheet, comprise a large amount of peripheral modules, itself there is powerful hardware resource, RAM, ROM, A/D conversion, D/A conversion, timer, counter, serial communication and multiple interrupt source, greatly saved the expense of other hardware, saved the exploitation debugging work of a large amount of hardware, improved operating efficiency, reliability, the antijamming capability of system also significantly improve, and make the further miniaturization of system bulk.This single-chip microcomputer has DMA(direct memory access) function, thereby without any hardware circuit, do not need the intervention of CPU, can in less space, realize the functions such as the A/D conversion of the sinusoidal wave generation of exciting current, multiple signals, data processing, master-slave communication, coding transmission are provided; Described signal acquisition circuit module 5-4 consists of the amplifying circuit module 5-41, the filtering shaping circuit module 5-42 that join successively and A/D change-over circuit module 5-43, and described A/D change-over circuit module 5-43 is integrated in described single-chip microcomputer MSP430F157 inside; Described temperature pick up 4-4 is PN junction temperature pick up, PN junction temperature pick up is a kind of semiconductor sensor part, have the advantage separately of thermocouple, RTD and thermistor concurrently, highly sensitive, exchange error little, reaction speed is fast, overcome some inherent shortcoming of traditional thermometric device, measurement category can reach-50 ℃～200 ℃; Described pressure sensor 4-5 is piezoresistive pressure sensor, and the media compatibility of piezoresistive pressure sensor is good, stable and reliable for performance, and precision is high, and standard signal 4mA～20mA output, is convenient to simplify amplifying circuit module 5-41 and filtering shaping circuit module 5-42.The weak output signal of exporting due to electromagnetic flowmeter 2, be easy to be subject to the interference of noise, so while specifically implementing, selected the amplifier TLV2252 composition amplifying circuit module 5-41 of low noise precision, amplifier TLV2252 is that the direct-coupling of a kind of high-gain, high input resistance and high cmrr is put device, have the form of differential input, Single-end output, due to circuit structure symmetry, their drift and imbalance have the effect of cancelling each other.
As shown in figure 10, in the present embodiment, described pulse driving circuit module 5-7 comprises chip LM324, polar capacitor C11, resistance R 1, R7, R13, R17, R18 and R19, and diode D6 and D8, the pin 3 of described chip LM324 joins with the output IO1 of down hole processor module 5-5 by resistance R 19, the pin 2 of described chip LM324 joins with the output IO2 of down hole processor module 5-5 by resistance R 18, the pin 1 of described chip LM324, pin 5, pin 10 and pin 12 all join by resistance R 17 and the pin 2 of chip LM324, the pin 6 of described chip LM324 and pin 7 all join by resistance R 13 and the positive pole of polar capacitor C11, the pin 8 of described chip LM324 and pin 9 all join by resistance R 7 and the positive pole of polar capacitor C11, the pin 13 of described chip LM324 and pin 14 all join by resistance R 1 and the positive pole of polar capacitor C11, the negative pole of the positive pole of the positive pole of described polar capacitor C11 and diode D6 and diode D8 joins, the pin 4 of described chip LM324 and the negative pole of diode D6 all join with+10V power supply, the pin 11 of described chip LM324 and the positive pole of diode D8 all join with-10V power supply, the negative pole of described polar capacitor C11 is the output OUT of described pulse driving circuit module 5-7.Described pulse driving circuit module 5-7 is that the two-way unipolar pulse code that down hole processor module 5-5 is generated synthesizes bipolar code and carries out power drive, so that signal can transmit on the communication cable of several kms.The result of conversion like this, in the bipolar pulse sequence that makes to produce cancellation DC component, and the component that approaches zero-frequency also reduced, this is just being suitable for the transmission characteristic of communication cable.
As shown in figure 11, in the present embodiment, described cable connector 6 comprises the circular tube shaped round splce 6-1 that is threaded in described data processing equipment pillar 5-1 top and the noose 6-2 that is sleeved on described round splce 6-1 inside, the top of described round splce 6-1 is provided with external screw thread 6-3, external screw thread 6-3 is standby, for this logging instrument, be connected with external equipment, the bottom of described noose 6-2 is threaded and is useful on round splce 6-1 inner space and the separated seal receptacle 6-4 of data processing equipment pillar 5-1, high-voltage plug 6-5 has been threaded on described seal receptacle 6-4, described gaily decorated basket 5-3 is fixedly connected with seal receptacle 6-4, in described noose 6-2, be provided with connector assembly nut 6-6, connector assembly 6-7 has been threaded on described connector assembly nut 6-6, on described connector assembly 6-7, aviation plug 6-8 is installed, between described connector assembly 6-7 and described noose 6-2, be provided with buffer spring 6-9, the output of described pulse driving circuit module 5-7 is electrically connected with described high-voltage plug 6-5, and described high-voltage plug 6-5 is electrically connected with described aviation plug 6-8, and described aviation plug 6-8 is electrically connected with described communication cable.Cable connector 6 is the tops of whole logging instrument, and Main Function is weight and the electrical connection of bearing whole logging instrument.It is withstand voltage that circular tube shaped round splce 6-1 mainly plays waterproof.Arrange seal receptacle 6-4 can anti-sealing and moisture enter in data processing equipment pillar 5-1, corrupt data treatment circuit plate 5-2, has improved the water proofing property of data processing circuit plate 5-2.High-voltage plug 6-5 consists of conduction copper column and the insulation tube being sleeved on outside conduction copper column, by insulation tube, conduction copper column and seal receptacle 6-4 are insulated, the signal of telecommunication of data processing circuit plate 5-2 transmission is transferred to aviation plug 6-8 by high-voltage plug 6-5, then is transferred to communication cable by aviation plug 6-8.Aviation plug 6-8 has and connects feature reliable, easy accessibility, can shorten the time that field instrumentation connects.Between described connector assembly 6-7 and described noose 6-2, be provided with buffer spring 6-9, guaranteed that aviation plug 6-8 is reliably connected with communication cable.
As shown in Figure 9, in the present embodiment, described underground instrument signal treatment circuit 7 consists of the amplification and rectification circuit module 7-1 joining successively and serial-parallel conversion circuit module 7-2, and described ground based processor module 8 mainly consists of single-chip microcomputer MSP430F1611.
In sum, while adopting the present invention to log well, underground electromagnetic flow logging instrument is under the centering effect of lower centralizer 1 and caliper logging instrument 3, along being moved by well logging center, down hole processor module 5-5 by motor-drive circuit module 5-6 control motor 3-3 startup, stop, rotating, caliper logging arm 3-18 is opened or closed, while passing through different stratum, electromagnetic flowmeter 2, linear displacement transducer 3-19, temperature pick up 4-4 and pressure sensor 4-5 pass to signal acquisition circuit module 5-4 by its parameter of surveying, signal acquisition circuit module 5-4 amplifies signal, after filter shape and A/D conversion process, export to down hole processor module 5-5, down hole processor module 5-5 is transferred to data on communication cable by pulse driving circuit module 5-7 again, by communication cable, be transferred to ground observing and controlling system again, underground instrument signal treatment circuit 7 is exported to ground based processor module 8 after data are amplified to shaping and string conversion process, ground based processor module 8 divides road to extract signal, form flow velocity, well temperature, hole diameter, four curves of pressure reduction, simultaneously, the signal that photoelectric encoder 10 is exported is also exported to ground based processor module 8, ground based processor module 8, by judging low and high level and pulse signals counting, calculate the uplink and downlink of underground electromagnetic flow logging instrument and the current degree of depth, the translational speed calculating by calculating the degree of depth of underground electromagnetic flow logging instrument movement per second, form rate curve, so just there are five curves, be transferred to industrial control computer 9, store, show and print, finally on industrial control computer 9, with flow rate log interpretation software, read lane database and carry out analysis interpretation calculating, finally form flow rate log interpretation results table.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every any simple modification of above embodiment being done according to the technology of the present invention essence, change and equivalent structure change, and all still belong in the protection domain of technical solution of the present invention.
Claims (8)
1. a small-bore Electromagnetic Flow comprehensive logging instrument, it is characterized in that: comprise the underground electromagnetic flow logging instrument that is arranged on down-hole and arrange on the ground and the ground observing and controlling system that is connected and communicates by letter with underground electromagnetic flow logging instrument by communication cable, described underground electromagnetic flow logging instrument comprises the lower centralizer (1) arranging from top to bottom successively, electromagnetic flowmeter (2), caliper logging instrument (3), pressure and temperature measuring equipment (4), data processing equipment (5) and cable connector (6), described ground observing and controlling system comprises the cable reel for connecting communication cable, for image data treating apparatus (5), process the underground instrument signal treatment circuit (7) of the underground instrument signal obtaining, the ground based processor module (8) of joining with underground instrument signal treatment circuit (7) and the industrial control computer (9) joining with ground based processor module (8), photoelectric encoder (10) for the speed of underground electromagnetic flow logging instrument is detected is installed on described cable reel, described photoelectric encoder (10) joins with described ground based processor module (8),
Described lower centralizer (1) comprises righting rod (1-1), be connected to the guide head (1-2) of described righting rod (1-1) bottom and be arranged on described righting rod (1-1) place, centre position and match formed diameter can be with multiple righting spring leafs (1-3) of the elastic waist drum shape of well radius variations, on described righting rod (1-1), being symmetrically arranged with two can be respectively used to the sliding position on righting rod (1-1) to two righting mechanisms the upper righting mechanisms that slide of righting rod (1-1) and two and carry out spacing interstage sleeve (1-4), the two ends of described righting spring leaf (1-3) are hinged with two described righting mechanisms respectively, the bottom of described electromagnetic flowmeter (2) is threaded with the top of described righting rod (1-1),
Described caliper logging instrument (3) comprises caliper logging instrument pillar (3-1) and is sleeved on the inner inner tube (3-2) of described caliper logging instrument pillar (3-1), and caliper logging mechanism, for promoting the recline backup mechanism of the borehole wall and for driving the actuating unit of described backup mechanism of described caliper logging mechanism, described actuating unit comprises motor (3-3), the reductor (3-4) joining with motor (3-3) output shaft, the leading screw (3-5) joining with reductor (3-4) output shaft and be threaded in the feed screw nut (3-6) on described leading screw (3-5), on the inwall of described inner tube (3-2), be fixedly connected with to be useful on and feed screw nut (3-6) moved on leading screw (3-5) to lower stroke switch (3-7) that lower end extreme position detects and for feed screw nut (3-6) being moved to the upper stroke switch (3-8) that upper end extreme position detects, on described feed screw nut (3-6), be fixedly connected with feeler lever (3-9), on described feeler lever (3-9), be fixedly connected with the contact (3-10) matching with described upper stroke switch (3-8) and lower stroke switch (3-7), the top of described inner tube (3-2) is fixedly connected with and is useful on the motor cabinet (3-11) that described reductor (3-4) and motor (3-3) are installed, bearing support (3-12) is installed on the inwall of described inner tube (3-2), bearing (3-13) for supporting described leading screw (3-5) is installed in described bearing support (3-12), described backup mechanism comprises and is sleeved on the inner backup spring base (3-14) of described inner tube (3-2), the top of described backup spring base (3-14) is fixedly connected with many and reaches described feed screw nut (3-6) side and can withstand on the backup spring (3-15) on described feeler lever (3-9), and the bottom of described backup spring base (3-14) is fixedly connected with connecting axle (3-16), described caliper logging mechanism comprises the caliper logging knee-joint head (3-17) being threaded with described inner tube (3-2) bottom, evenly be hinged on the many caliper logging arms (3-18) on described caliper logging knee-joint head (3-17) and be fixedly connected in inner tube (3-2) and the linear displacement transducer (3-19) for the straight-line displacement amount of backup spring base (3-14) is detected, gear (3-20) is all installed on every described caliper logging arm (3-18), the bottom thread of described connecting axle (3-16) is connected with tooth bar mount pad (3-21), the many corresponding tooth bars (3-22) that match with multiple described gears (3-20) are respectively installed on described tooth bar mount pad (3-21),
Described pressure and temperature measuring equipment (4) comprise the transition joint (4-1) of column, described transition joint (4-1) inside is provided with the cavity (4-2) of column, the intake-outlet (4-3) that being provided with supply water inflow cavity (4-2) or outflow cavity (4-2) in described transition joint (4-1), the inner two ends of described cavity (4-2) are respectively arranged with temperature pick up (4-4) and pressure sensor (4-5); The bottom of described transition joint (4-1) is threaded with described caliper logging instrument pillar (3-1);
Described data processing equipment (5) comprises data processing equipment pillar (5-1) and is arranged on the inner data processing circuit plate (5-2) of data processing equipment pillar (5-1) and the gaily decorated basket (5-3) for installation data treatment circuit plate (5-2), the bottom of described data processing equipment pillar (5-1) is threaded with described transition joint (4-1), the down hole processor module (5-5) that is laid with signal acquisition circuit module (5-4) on described data processing circuit plate (5-2) and joins with signal acquisition circuit module (5-4), and motor-drive circuit module (5-6) and the pulse driving circuit module (5-7) of joining with described down hole processor module (5-5), described electromagnetic flowmeter (2), linear displacement transducer (3-19), temperature pick up (4-4) and pressure sensor (4-5) all join with described signal acquisition circuit module (5-4), described upper stroke switch (3-8) and lower stroke switch (3-7) all join with described down hole processor module (5-5), described motor (3-3) joins with described motor-drive circuit module (5-6), described communication cable joins by cable connector (6) and described pulse driving circuit module (5-7),
Described righting mechanism comprises the inner spring seat (1-5) being sleeved on described righting rod (1-1) and the outer spring seat (1-6) being threaded with described inner spring seat (1-5), described outer spring seat (1-6) matches and has formed multiple hinge holes (1-7) with inner spring seat (1-5), one end of multiple described righting spring leafs (1-3) respectively correspondence is hinged with the multiple hinge holes (1-7) on righting mechanism described in one of them, the other end of multiple described righting spring leafs (1-3) respectively correspondence is hinged with the multiple hinge holes (1-7) on righting mechanism described in another,
Between described data processing circuit plate (5-2) and the described gaily decorated basket (5-3), be provided with cross-over block (5-8).
2. according to small-bore Electromagnetic Flow comprehensive logging instrument claimed in claim 1, it is characterized in that: described righting spring leaf (1-3) is arcuate bombing leaf, the quantity of described righting spring leaf (1-3) is three, and the quantity of the hinge hole (1-7) on corresponding each described righting mechanism is three.
3. according to small-bore Electromagnetic Flow comprehensive logging instrument claimed in claim 1, it is characterized in that: described gear (3-20) is for semicircle, the quantity of described caliper logging arm (3-18) is three, the quantity of corresponding described gear (3-20) is three, and the quantity of corresponding described tooth bar (3-22) is three.
4. according to small-bore Electromagnetic Flow comprehensive logging instrument claimed in claim 1, it is characterized in that: in described inner tube (3-2), have gathering sill (3-23), on described feed screw nut (3-6), be fixedly connected with the guiding feather key (3-24) matching with gathering sill (3-23), the bottom of described tooth bar mount pad (3-21) is connected with sleeve pipe (11), on described sleeve pipe (11), be fixedly connected with electromagnetic flowmeter joint (12), the top of described electromagnetic flowmeter (2) is threaded with described electromagnetic flowmeter joint (12).
5. according to small-bore Electromagnetic Flow comprehensive logging instrument claimed in claim 1, it is characterized in that: described down hole processor module (5-5) mainly consists of single-chip microcomputer MSP430F157, described signal acquisition circuit module (5-4) consists of the amplifying circuit module (5-41) of joining successively, filtering shaping circuit module (5-42) and A/D change-over circuit module (5-43), and described A/D change-over circuit module (5-43) is integrated in described single-chip microcomputer MSP430F157 inside; Described temperature pick up (4-4) is PN junction temperature pick up, and described pressure sensor (4-5) is piezoresistive pressure sensor.
6. according to small-bore Electromagnetic Flow comprehensive logging instrument claimed in claim 1, it is characterized in that: described pulse driving circuit module (5-7) comprises chip LM324, polar capacitor C11, resistance R 1, R7, R13, R17, R18 and R19, and diode D6 and D8, the pin 3 of described chip LM324 joins with the output IO1 of down hole processor module (5-5) by resistance R 19, the pin 2 of described chip LM324 joins with the output IO2 of down hole processor module (5-5) by resistance R 18, the pin 1 of described chip LM324, pin 5, pin 10 and pin 12 all join by resistance R 17 and the pin 2 of chip LM324, the pin 6 of described chip LM324 and pin 7 all join by resistance R 13 and the positive pole of polar capacitor C11, the pin 8 of described chip LM324 and pin 9 all join by resistance R 7 and the positive pole of polar capacitor C11, the pin 13 of described chip LM324 and pin 14 all join by resistance R 1 and the positive pole of polar capacitor C11, the negative pole of the positive pole of the positive pole of described polar capacitor C11 and diode D6 and diode D8 joins, the pin 4 of described chip LM324 and the negative pole of diode D6 all join with+10V power supply, the pin 11 of described chip LM324 and the positive pole of diode D8 all join with-10V power supply, the negative pole of described polar capacitor C11 is the output OUT of described pulse driving circuit module (5-7).
7. according to small-bore Electromagnetic Flow comprehensive logging instrument claimed in claim 1, it is characterized in that: described cable connector (6) comprises the noose (6-2) that is threaded in the circular tube shaped round splce (6-1) on described data processing equipment pillar (5-1) top and is sleeved on described round splce (6-1) inside, the top of described round splce (6-1) is provided with external screw thread (6-3), the bottom of described noose (6-2) is threaded and is useful on round splce (6-1) inner space and the separated seal receptacle of data processing equipment pillar (5-1) (6-4), high-voltage plug (6-5) has been threaded on described seal receptacle (6-4), the described gaily decorated basket (5-3) is fixedly connected with seal receptacle (6-4), in described noose (6-2), be provided with connector assembly nut (6-6), connector assembly (6-7) has been threaded on described connector assembly nut (6-6), aviation plug (6-8) is installed on described connector assembly (6-7), between described connector assembly (6-7) and described noose (6-2), be provided with buffer spring (6-9), the output of described pulse driving circuit module (5-7) is electrically connected with described high-voltage plug (6-5), and described high-voltage plug (6-5) is electrically connected with described aviation plug (6-8), and described aviation plug (6-8) is electrically connected with described communication cable.
8. according to small-bore Electromagnetic Flow comprehensive logging instrument claimed in claim 1, it is characterized in that: described underground instrument signal treatment circuit (7) consists of the amplification and rectification circuit module (7-1) of joining successively and serial-parallel conversion circuit module (7-2), and described ground based processor module (8) mainly consists of single-chip microcomputer MSP430F1611.
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| CN104612656A (en) * | 2013-11-05 | 2015-05-13 | 核工业二一六大队 | Vehicle-mounted borehole electromagnetic flow instrument |
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| CN106593421B (en) * | 2016-12-15 | 2018-09-14 | 中国科学院地质与地球物理研究所 | A kind of high temperature resistant down-hole information upload device |
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| CN110939429A (en) * | 2018-09-21 | 2020-03-31 | 中国石油天然气股份有限公司 | Logging instrument |
| CN111734398A (en) * | 2019-03-19 | 2020-10-02 | 中国石油天然气股份有限公司 | Injection well injection profile flow test device |
| CN110273676B (en) * | 2019-07-19 | 2023-07-18 | 西安思坦仪器股份有限公司 | Well diameter flow adjustment test system and method |
| CN114658418B (en) * | 2022-04-29 | 2024-04-26 | 西安石竹能源科技有限公司 | Electric position limiting instrument for locking underground optical cable azimuth |
| CN117052379B (en) * | 2023-09-26 | 2024-03-12 | 西南石油大学 | Oil-gas well diameter measurement while drilling device and method |
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