CN202023556U - Dual caliper for horizontal well - Google Patents
Dual caliper for horizontal well Download PDFInfo
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- CN202023556U CN202023556U CN201120139205XU CN201120139205U CN202023556U CN 202023556 U CN202023556 U CN 202023556U CN 201120139205X U CN201120139205X U CN 201120139205XU CN 201120139205 U CN201120139205 U CN 201120139205U CN 202023556 U CN202023556 U CN 202023556U
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Abstract
The utility model provides a dual caliper for a horizontal well. The dual caliper fundamentally solves the problem that the existing logging instrument cannot move up and down for repeat measuring due to the structural limit when in work. The dual caliper comprises a cylinder-shaped base body as well as an upper joint and a lower joint of the cylinder-shaped base body. The utility model has the technical points that the dual caliper also comprises a driving motor, a transmitting assembly, a hydraulic balancing assembly, a sensor assembly, a measuring assembly and a vacuum damping assembly; and the driving motor, the transmitting assembly, the hydraulic balancing assembly, the sensor assembly, the measuring assembly and the vacuum damping assembly are sequentially assembled in the cylinder-shaped base body. When the dual caliper is placed in the well, and measuring arms of the dual caliper are pushed out by a sidewall contact device, four measuring arms of the dual caliper can stretch freely according to the change of the well diameter, four logging support arms can individually drive a potentiometer to move, and the separate moving effect is good, so that the change of the diameter of the well wall can be reflected precisely. The dual caliper can be placed in the well to measure double well diameters and average well diameter, can be used independently and can also be connected with other instruments in series for use. The dual caliper is stable in operation, so that the stability and reliability of the measuring can be ensured.
Description
Technical field
The utility model relates to the oil reservoir logging technical field, and particularly a kind of horizontal well dual caliper can be mainly used in horizontal well, the measurement of high angle hole mineshaft diameter.
Background technology
Logging instrument is applicable to the well logging field, and can carry out continuous sweep to the borehole wall, also can carry out transversal scanning to any level, provides technical data such as pit shaft sectional elevation, plane cross section, pit shaft useful area, pit shaft deflection distance.Well logging is the result can directly be shown by computer screen, also can be provided by the plotter printer, and is flexible and convenient to use.The use of logger can prevent the pit shaft deflection, reduces construction period, and accelerating construction progress is guaranteed workmanship, and indirect economic effect is obvious, the social benefit highly significant.
Because geological conditions and drilling technology is different, drill bit is withdrawn from the back borehole wall, and situations such as pressure extrusion is out of shape, loose geology pull-up falls may take place, so the oil field at first will be measured hole diameter by logging equipment before following pipe variation, what this logging equipment was more common is exactly telescoping ram, so the logging instrument telescoping ram is to extend into the important device that detects hole diameter etc. in the well, just seeming for the research of logging instrument telescoping ram is even more important.But the applicant finds that the general structure of existing logging instrument is that telescoping ram is located at the instrument lower end, is the opening type terminal when promptly working.The logging instrument of this structure is subjected to its structural limitations, and normally earlier telescoping ram being transferred to during work needs the pit shaft measured bottom, measures successively from bottom to up then, otherwise then cannot.Because when from top to bottom measuring, the gage beam of telescoping ram can be stuck on rough borehole wall, influences the accuracy of surveying work efficient and measurement result, also can cause the damage of instrument simultaneously.The logging instrument of this form is unsuitable for the upper and lower repeated measurement work of horizontal well equally, so existing logging instrument is demanded urgently improving.
Summary of the invention
The purpose of this utility model is for a kind of reasonable in design, safe and reliable horizontal well dual caliper are provided, problem that can not upper and lower motion repeated measurement when fundamentally solving existing logging instrument and being subjected to its structural limitations work, simultaneously, the utility model device operates steadily, and guarantees measuring stability, reliability.
The technical solution of the utility model is: this horizontal well dual caliper, comprise tubular matrix and upper and lower joint thereof, its technical essential is: also comprise the drive motors, drive assembly, hydro-cushion assembly, sensor unit, measurement assembly, the vacuum damping assembly that are assembled in successively in the described tubular matrix;
Described tubular matrix is connected in sequence by urceolus, surge drum, connecting cylinder, tubular test arm main body;
Described drive assembly comprises the leading screw that connects successively, screw, connector, upper thrust rod, middle pull bar, lower push-pull bar, described leading screw front end links to each other with drive motors by shaft coupling, described connector front end is connected with the described screw of described leading screw top, described connector rear end is fastenedly connected described upper thrust rod, described upper thrust rod passes described hydro-cushion assembly and sensor unit and described middle pull bar and is fastenedly connected, pull bar passes the outer spring box that is provided with in the described tubular test arm main body in the middle of described, big spring and described lower push-pull bar are fastenedly connected, pull bar utilizes the key connection to be fixed together with described outer spring box in the middle of described, described big spring utilizes a left side respectively, right big spring frame is supported between described outer spring box and the described lower push-pull bar, and described lower push-pull bar end stretches in the vacuum valve of described vacuum damping assembly;
Described measurement assembly comprises that duty is four groups of test arms of lantern body formula, every group of described test arm comprises the connecting lever measuring staff, the straight-arm measuring staff, described connecting lever measuring staff one end is provided with flex point, and be articulated in described tubular test arm main body top barrel, the other end is equipped with swivel, described straight-arm measuring staff one end is articulated in described tubular test arm lower body part barrel, the other end is set in the straight-arm measuring staff cover that includes spring and withstands described spring, described straight-arm measuring staff cover end is equipped with down swivel, described connecting lever measuring staff and straight-arm measuring staff utilize described on, following swivel and connecting pin are hinged;
Corresponding four groups of described test arms are provided with four groups of spring levers in the circumferential cell body of described outer spring box that is provided with in the described tubular test arm main body, on the described spring lever positive stop lug boss is set, the external wall of described positive stop lug boss one side lever is set with spring, described spring one end relies on the end face of described left big spring frame by spring pressuring plate, the other end leans on described positive stop lug boss, the opposite side body of rod of described positive stop lug boss stretches out described outer spring box and utilizes pin to be hinged with support bar, the described support bar other end is hinged on the body of rod of described connecting lever measuring staff, described support bar is divided into support bar I and support bar II, and described support bar I and support bar II utilize positive left-hand thread swivel nut to be threaded to one.
For logging instrument described in the utility model is operated steadily, this device has designed hydro-cushion assembly and vacuum damping assembly, described hydro-cushion assembly comprises equalizing sub and is assembled in six groups of interior balancing poles of described equalizing sub, described equalizing sub front end is plugged in the cylindrical shell of described surge drum rear end, described equalizing sub rear end is plugged in the described connecting cylinder front end cylindrical shell, described balancing pole outer wall is set with balancing spring and can moves in described equalizing sub cavity, described equalizing sub rear end utilizes the restricted described balancing pole pressurized of screw to eject the balance catch of described equalizing sub, described balancing pole end is set with O type circle, and it is stifled that described equalizing sub outer wall is provided with oil.
The vacuum valve of described vacuum damping assembly is arranged in the lower contact I front end cavity of described lower contact assembly, and O type circle is set on the clamping end face of described vacuum valve and described lower contact assembly I, O type circle is set on the contact surface of described lower push-pull bar rear end and described vacuum valve.
Described sensor unit comprises spring case, potentiometer fixed mount, and described spring case front end utilizes swivel nut to screw in described connecting cylinder rear end, and described spring case rear end utilizes swivel nut to be threadedly connected to tubular test arm main body simultaneously; Described potentiometer fixed mount front end utilizes the patchboard that is provided with in hold-down screw and the described connecting cylinder to be fixed together, and its rear end utilizes screw at described spring case front end face; Be fixed with four groups of potentiometers on the described potentiometer fixed mount, corresponding described potentiometer is provided with four groups of piston rods that are set with small pressure spring in the described spring case; Described piston rod front end is supported in the supported hole of described potentiometer fixed mount rear end and passes supported hole, make before four groups of piston rods terminal contacts respectively with four groups of corresponding connections of potentiometer, described piston rod rear end contacts with the flex point of the connecting lever measuring staff end of described measurement assembly.
The penetration pipe of the utility model logging instrument is different from the mode that the existing apparatus side is provided with, and adopts the center set-up mode.Offer a chute on the cavity of described connector, establish a supporting screw that is fixed on the leading screw fixed mount in the described chute, utilize described supporting screw and sunk screw to be fixed with penetration pipe, penetration pipe passes described connector, upper thrust rod, middle pull bar, lower push-pull bar and vacuum valve successively along described tubular matrix length direction, and communicate with described lower contact, the contact surface that described penetration pipe passes described vacuum valve is provided with O type circle.
Advantage of the present utility model and positive technique effect are: after the utility model device is transferred to the down-hole, after telescoping ram is pushed the gage beam of instrument open, instrument four measuring arm is with the free folding and unfolding of variation of hole diameter, four well logging support arm free band electrokinetic potential device motions separately, transfer is effective, can accurately reflect borehole wall diameter variation, can transfer and measure twin-well footpath, MDIA, can use the use of also can connecting separately with Other Instruments.In addition, hydro-cushion assembly and vacuum damping assembly can effectively be protected each key component of instrument, thereby have guaranteed stability, the reliability of instrument work, and this also is different from general four arm hole diameters.Simultaneously, logging instrument described in the utility model belongs to the lantern body formula, is different from the beveled structure of other this quasi-instrument, therefore is specially adapted to the caliper logging of high angle hole, horizontal well, also can move up and down when opening support arm; Compression spring, balancing spring, support arm spring all adopt the precipitation-hardening steel wire, and be more corrosion-resistant; Test arm revolves joint and adopts the high strength anti bistrique, has improved application life; Middle each joint adopts the TC4 material, and assembling has been avoided thread lapping flexibly; Tool body is selected the 17-4PH material for use, and is corrosion-resistant, wear-resistant, rigidity intensity height.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is a monnolithic case schematic diagram of the present utility model;
Fig. 2 is STRUCTURE DECOMPOSITION figure one of the present utility model;
Fig. 3 is STRUCTURE DECOMPOSITION figure two of the present utility model;
Fig. 4 is STRUCTURE DECOMPOSITION figure three of the present utility model;
Fig. 5 is STRUCTURE DECOMPOSITION figure four of the present utility model;
Fig. 6 is STRUCTURE DECOMPOSITION figure five of the present utility model;
Fig. 7 is STRUCTURE DECOMPOSITION figure six of the present utility model;
Fig. 8 is STRUCTURE DECOMPOSITION figure seven of the present utility model;
Fig. 9 is STRUCTURE DECOMPOSITION figure eight of the present utility model;
Figure 10 is STRUCTURE DECOMPOSITION figure nine of the present utility model;
Sequence number explanation among the figure: 1 urceolus, 2 top connections, 3 shaft couplings, 4 antirotation keys, 5 bearings, 6 bearing supports, 7 sleeves, 8 snap rings, 9 leading screws, 10 bump ring, 11 stop sleevees, 12 microswitch fixed heads, 13 jackscrews, 14 hole back-up rings, 15 screws, 16 connectors, 17 upper thrust rods, 18 supporting screws, 19 attachment screws, 20 adapter sleeves, 21 baffle rings, 22 leading screw fixed mounts, 23 6 core seal plugs, 24 needle seals, 25 surge drums, 26 balancing springs, 27 balancing poles, 28 O type circles, 29 equalizing subs, 30 balance catch, 31 connecting cylinders, 32 potentiometers, 33 contacts, 34 piston rods, 35 potentiometer fixed mounts, 36 small pressure springs, 37 swivel nuts, 38 spring cases, 39 spring shims, 40 pins, 41 connecting lever measuring staffs, 42 pins, 43 support bar I, 44 positive left-hand thread swivel nuts, 45 support bar II, 46 pins, 47 spring levers, pull bar in the middle of 48,49 outer spring boxes, 50 spring pressuring plates, 51 left big spring framves, 52 big springs, swivel on 53,54 lower push-pull bars, 55 connecting pins, 56 times swivels, 57 straight-arm measuring staff covers, 58 springs, 59 straight-arm measuring staffs, 60 tubular test arm main bodys, 61 vacuum valves, 62 jackscrews, 63 lower contact assembly I, 64 lower contact assembly II, 65 resistance to compression pieces, 66 flex points, 67 penetration pipes, 68/69/70 O type circle, 71 right big spring framves, 72 screws, 73 springs, 74 O type circles, 75 screws, 76 O type circles, 77 screws, 78 hold-down screws, 79 patchboards, 80/81/82 O type circle, 83 bump the ring jackscrew, 84 sunk screws, 87 sleeves, 88 dog screws, 89 jackscrews, 90 motor seats, 91 protective cases, 92 synchronizeds, 93 oil are stifled, 94 vacuum flask bases, 96 jackscrews, 97 screws, 98 sheaths, 99 drive motors.
The specific embodiment
Be described in detail according to Fig. 1-10 pair the utility model.This horizontal well dual caliper is a kind of instrument that is used to measure mineshaft diameter, and this instrument is primarily aimed at horizontal well, the hole diameter tester of high angle hole design.
The structure of this horizontal well dual caliper is composed as follows: mainly comprise tubular matrix and top connection 2 and lower contact, also comprise the drive motors 99, drive assembly, hydro-cushion assembly, sensor unit, measurement assembly, the vacuum damping assembly that are assembled in successively in the tubular matrix.
Wherein: the tubular matrix mainly is connected in sequence by urceolus 1, surge drum 25, connecting cylinder 31, tubular test arm main body 60; Urceolus 1 front end is connected with top connection 2, urceolus 1 rear end and surge drum 25 front ends spin together, urceolus 1 outer wall is provided with sheath 98, surge drum 25 rear ends utilize equalizing sub 29 to be connected with connecting cylinder 31 front ends, connecting cylinder 31 rear ends utilize swivel nut 37 to be connected with spring case 38, described spring case 38 rear ends utilize swivel nut to connect tubular test arm main body 60 simultaneously, and tubular test arm main body 60 rear ends screw and connect lower contact assembly I63, and lower contact assembly I63 rear end spiral connects lower contact assembly II64.
Described drive assembly comprises leading screw 9, screw 15, connector 16, upper thrust rod 17, middle pull bar 48, the lower push-pull bar 54 that connects successively; Be provided with protective case 91 and leading screw fixed mount 22 in the described urceolus 1, protective case 91 front ends are fixed with vacuum flask base 94, drive motors 99 is set in the protective case 91, protective case 91 rear ends and leading screw fixed mount 22 spiral-locks are together, described leading screw fixed mount 22 anterior inner chambers are provided with bearing support 6, establish bearing 5 in the bearing support 6 and support leading screws 9 front portions, and utilize sleeve 7 and snap ring 8 spacing, leading screw 9 front ends link to each other with drive motors 99 by shaft coupling 3.Described connector 16 front ends are connected with the screw 15 of leading screw 9 tops, specifically be, leading screw 9 rear spirals are connected with screw 15, screw 15 utilizes screw connecting to be sleeved on the stop sleeve 11 in the leading screw wall outside, stop sleeve 11 front end outer walls are provided with bumping of control leading screw travel switch and encircle 10, and stop sleeve 11 rear ends and connector 16 front ends link together.Described connector 16 rear ends are fastenedly connected upper thrust rod 17, specifically be, connector 16 rear ends utilize attachment screw 19 to be set with adapter sleeve 20, be provided with baffle ring 21 in the described adapter sleeve 20, the interior formation of screw that the end that described baffle ring 21 stretches out described adapter sleeve 20 is inserted into described upper thrust rod 17 front ends is fastenedly connected.
Described surge drum 25 front ends screw in the cylindrical shell of urceolus 1 rear end, leading screw fixed mount 22 rear ends are inserted in the surge drum 25 front end cylindrical shells and both joints are provided with six core seal plugs 23 and needle seal 24, the hydro-cushion assembly comprises equalizing sub 29 and is assembled in six groups of balancing poles 27 in the equalizing sub 29, equalizing sub 29 front ends are plugged in the surge drum 25 rear end cylindrical shells, equalizing sub 29 rear ends are plugged in the connecting cylinder 31 front end cylindrical shells, balancing pole 27 outer walls are set with balancing spring 26 and can move in described equalizing sub 29 cavitys, equalizing sub 29 rear ends utilize screw 77 to be fixed with the balance catch 30 that limiting balance bar 27 pressurizeds eject equalizing sub, balancing pole 27 ends are set with O type circle 28, and equalizing sub 29 outer walls are provided with oil stifled 93.
Described sensor unit comprises spring case 38, potentiometer fixed mount 35 and goes up the potentiometer 32 that is provided with, described spring case 38 front ends utilize swivel nut to screw in described connecting cylinder 31 rear ends, and spring case 38 rear ends utilize the swivel nut 37 tubular test arm main body 60 that is threaded simultaneously.Described potentiometer fixed mount 35 front ends utilize hold-down screw 78 and the described connecting cylinder 31 interior patchboards 79 that are provided with to be fixed together, and its rear end utilizes screw 75 to be fixed on spring case 38 front end faces.Be fixed with four groups of potentiometers 32 on the potentiometer fixed mount 35, corresponding potentiometer 32 is provided with four groups of piston rods 34 that are set with small pressure spring 36 in the spring case 38, piston rod 34 front ends are supported in the supported hole of potentiometer fixed mount 35 rear ends and pass supported hole, make before four groups of piston rods terminal contacts 33 respectively with the 32 corresponding connections of four groups of potentiometers, piston rod 34 rear ends contact with the flex point 66 of connecting lever measuring staff 41 ends of measurement assembly.
Equalizing sub 29, the potentiometer fixed mount 35 of sensor unit, spring case 38 that described upper thrust rod 17 passes the hydro-cushion assembly are fastenedly connected with middle pull bar 48, middle pull bar 48 passes the outer spring box 49, the big spring 52 that are provided with in the tubular test arm main body 60 and is fastenedly connected with lower push-pull bar 54, middle pull bar 48 utilizes key to connect with outer spring box 49 and is fixed together, big spring 52 utilizes left and right big spring frame 51,71 to be supported between outer spring box 49 and the lower push-pull bar 54 respectively, and lower push-pull bar 54 ends stretch in the vacuum valve 61 of vacuum damping assembly.The vacuum valve 61 of vacuum damping assembly is arranged in the lower contact assembly I63 front end cavity of lower contact, and on the clamping end face of vacuum valve 61 and lower contact assembly I63 O type circle 70 is set, and on the contact surface of lower push-pull bar 54 ends and vacuum valve 61 O type circle 69 is set.Offer a chute on the cavity of connector 16, establish a supporting screw 18 that is fixed on the leading screw fixed mount 22 in the chute, utilize supporting screw 18 and sunk screw 84 to be fixed with penetration pipe 67, penetration pipe 67 passes the vacuum valve 61 of connector 16, upper thrust rod 17, middle pull bar 48, lower push-pull bar 54 and vacuum damping assembly successively along described tubular matrix length direction, and communicate with lower contact assembly I63 and lower contact assembly II64, the contact surface that penetration pipe 67 passes vacuum valve 61 is provided with O type circle 68.
Described measurement assembly comprises that duty is four groups of test arms of lantern body formula; Every group of test arm comprises connecting lever measuring staff 41, straight-arm measuring staff 59, and connecting lever measuring staff 41 1 ends are provided with flex point 66, and is articulated in tubular test arm main body 60 top barrels, and the other end is equipped with swivel 53; Straight-arm measuring staff 59 1 ends are articulated in tubular test arm main body 60 bottom barrels, and the other end is set in the straight-arm measuring staff cover 57 that includes spring 58 and withstands spring 58, and the straight-arm measuring staff overlaps 57 ends swivel 56 is installed down; Connecting lever measuring staff 41 and straight-arm measuring staff 59 utilize upper and lower swivel 53,56 and connecting pin 55 hinged; Corresponding four groups of test arms are provided with four groups of spring levers 47 in the outer spring box 49 circumferential cell bodies that are provided with in the tubular test arm main body 60, on the spring lever 47 positive stop lug boss is set, the external wall of positive stop lug boss one side lever is set with spring, spring one end relies on the end face of left big spring frame 51 by spring pressuring plate 50, the other end leans on positive stop lug boss, the opposite side body of rod of positive stop lug boss stretches out outer spring box 49 and utilizes pin 46 to be hinged with support bar, and the support bar other end is hinged on the body of rod of connecting lever measuring staff 41; Support bar is divided into support bar I43 and support bar II45, and support bar I43 and support bar II45 utilize positive left-hand thread swivel nut 44 to be threaded to one.Tubular test arm main body 60 rear ends screw and connect lower contact assembly I63 and utilize jackscrew 62 fixing, lower contact assembly I63 rear end spiral connects lower contact assembly II64, and tubular test arm main body 60 is set with sheath with lower contact assembly I63 with the outside that is connected of lower contact assembly II64 with the outside that is connected of lower contact assembly I63.
Logging instrument described in the utility model can be designed to two kinds of specifications: a kind of survey twin-well footpath, a kind of measurement MDIA.Its technical indicator is described below: maximum operating temperature: 175 ℃; Maximum working pressure (MWP): 140Mpa; Instrument external diameter: Ф 95mm; Tool length: 3000mm; Caliper logging scope: 150mm-520mm; Caliper logging precision: ± 7mm.
The course of work of the utility model device:
Otherwise, drive motors 99 backward rotation, then connecting lever measuring staff 41 and straight-arm measuring staff 59 will be closed, can extract well head out, and well logging work is finished.
In the course of work, four groups of connecting lever measuring staffs 41 and straight-arm measuring staff 59 can be tackled well radius variations separately, and under the effect of borehole wall external force, straight-arm measuring staff 59 can stretch in straight-arm measuring staff cover 57, the 41 compressing support bar motions of connecting lever measuring staff, spring lever 47 motions of support bar and then promotion opposite side.Guaranteed the accuracy of surveying work.Lower push-pull bar 54 ends move in vacuum valve 61, have guaranteed that it operates steadily, and simultaneously, the hydro-cushion assembly has guaranteed that oil pressure changes along with ambient pressure environment in the instrument, and then has guaranteed stability, the reliability of instrument work.
Claims (5)
1. horizontal well dual caliper, comprise tubular matrix and upper and lower joint thereof, it is characterized in that: also comprise the drive motors, drive assembly, hydro-cushion assembly, sensor unit, measurement assembly, the vacuum damping assembly that are assembled in successively in the described tubular matrix;
Described tubular matrix is connected in sequence by urceolus, surge drum, connecting cylinder, tubular test arm main body;
Described drive assembly comprises the leading screw that connects successively, screw, connector, upper thrust rod, middle pull bar, lower push-pull bar, described leading screw front end links to each other with drive motors by shaft coupling, described connector front end is connected with the described screw of described leading screw top, described connector rear end is fastenedly connected described upper thrust rod, described upper thrust rod passes described hydro-cushion assembly and sensor unit and described middle pull bar and is fastenedly connected, pull bar passes the outer spring box that is provided with in the described tubular test arm main body in the middle of described, big spring and described lower push-pull bar are fastenedly connected, pull bar utilizes the key connection to be fixed together with described outer spring box in the middle of described, described big spring utilizes a left side respectively, right big spring frame is supported between described outer spring box and the described lower push-pull bar, and described lower push-pull bar end stretches in the vacuum valve of described vacuum damping assembly;
Described measurement assembly comprises that duty is four groups of test arms of lantern body formula, every group of described test arm comprises the connecting lever measuring staff, the straight-arm measuring staff, described connecting lever measuring staff one end is provided with flex point, and be articulated in described tubular test arm main body top barrel, the other end is equipped with swivel, described straight-arm measuring staff one end is articulated in described tubular test arm lower body part barrel, the other end is set in the straight-arm measuring staff cover that includes spring and withstands described spring, described straight-arm measuring staff cover end is equipped with down swivel, described connecting lever measuring staff and straight-arm measuring staff utilize described on, following swivel and connecting pin are hinged;
Corresponding four groups of described test arms are provided with four groups of spring levers in the circumferential cell body of described outer spring box that is provided with in the described tubular test arm main body, on the described spring lever positive stop lug boss is set, the external wall of described positive stop lug boss one side lever is set with spring, described spring one end relies on the end face of described left big spring frame by spring pressuring plate, the other end leans on described positive stop lug boss, the opposite side body of rod of described positive stop lug boss stretches out described outer spring box and utilizes pin to be hinged with support bar, the described support bar other end is hinged on the body of rod of described connecting lever measuring staff, described support bar is divided into support bar I and support bar II, and described support bar I and support bar II utilize positive left-hand thread swivel nut to be threaded to one.
2. horizontal well dual caliper according to claim 1, it is characterized in that: described hydro-cushion assembly comprises equalizing sub and is assembled in six groups of interior balancing poles of described equalizing sub, described equalizing sub front end is plugged in the cylindrical shell of described surge drum rear end, described equalizing sub rear end is plugged in the described connecting cylinder front end cylindrical shell, described balancing pole outer wall is set with balancing spring and can moves in described equalizing sub cavity, described equalizing sub rear end utilizes the restricted described balancing pole pressurized of screw to eject the balance catch of described equalizing sub, described balancing pole end is set with O type circle, and it is stifled that described equalizing sub outer wall is provided with oil.
3. horizontal well dual caliper according to claim 1, it is characterized in that: the vacuum valve of described vacuum damping assembly is arranged in the lower contact assembly I front end cavity of described lower contact, and O type circle is set on the clamping end face of described vacuum valve and described lower contact assembly I, on the contact surface of described lower push-pull bar end and described vacuum valve O type circle is set.
4. horizontal well dual caliper according to claim 1, it is characterized in that: described sensor unit comprises spring case, potentiometer fixed mount, described spring case front end utilizes swivel nut to screw in described connecting cylinder rear end, and described spring case rear end utilizes the swivel nut tubular test arm main body that is threaded simultaneously; Described potentiometer fixed mount front end utilizes the patchboard that is provided with in hold-down screw and the described connecting cylinder to be fixed together, and its rear end utilizes screw at described spring case front end face; Be fixed with four groups of potentiometers on the described potentiometer fixed mount, corresponding described potentiometer is provided with four groups of piston rods that are set with small pressure spring in the described spring case; Described piston rod front end is supported in the supported hole of described potentiometer fixed mount rear end and passes supported hole, make before four groups of piston rods terminal contacts respectively with four groups of corresponding connections of potentiometer, described piston rod rear end contacts with the flex point of the connecting lever measuring staff end of described measurement assembly.
5. horizontal well dual caliper according to claim 1, it is characterized in that: offer a chute on the cavity of described connector, establish a supporting screw that is fixed on the leading screw fixed mount in the described chute, utilize described supporting screw and sunk screw to be fixed with penetration pipe, penetration pipe passes described connector, upper thrust rod, middle pull bar, lower push-pull bar and vacuum valve successively along described tubular matrix length direction, and communicate with described lower contact, the contact surface that described penetration pipe passes described vacuum valve is provided with O type circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120139205XU CN202023556U (en) | 2011-05-05 | 2011-05-05 | Dual caliper for horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120139205XU CN202023556U (en) | 2011-05-05 | 2011-05-05 | Dual caliper for horizontal well |
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| Publication Number | Publication Date |
|---|---|
| CN202023556U true CN202023556U (en) | 2011-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120139205XU Expired - Lifetime CN202023556U (en) | 2011-05-05 | 2011-05-05 | Dual caliper for horizontal well |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155215A (en) * | 2011-05-05 | 2011-08-17 | 沈阳新锦石油设备有限公司 | Horizontal well dual caliper |
| CN102926744A (en) * | 2012-11-21 | 2013-02-13 | 沈阳航空航天大学 | Signal acquisition circuit of horizontal well dual caliper |
| CN104237947A (en) * | 2014-05-08 | 2014-12-24 | 珠海市泰德企业有限公司 | Well locking device for seismic apparatus in well |
| CN109899014A (en) * | 2019-01-31 | 2019-06-18 | 张化庆 | Pulling device, control method and control device in a kind of water injection well |
-
2011
- 2011-05-05 CN CN201120139205XU patent/CN202023556U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155215A (en) * | 2011-05-05 | 2011-08-17 | 沈阳新锦石油设备有限公司 | Horizontal well dual caliper |
| CN102155215B (en) * | 2011-05-05 | 2013-05-08 | 沈阳新锦石油设备有限公司 | Horizontal well dual caliper |
| CN102926744A (en) * | 2012-11-21 | 2013-02-13 | 沈阳航空航天大学 | Signal acquisition circuit of horizontal well dual caliper |
| CN102926744B (en) * | 2012-11-21 | 2015-07-01 | 沈阳航空航天大学 | Signal acquisition circuit of horizontal well dual caliper |
| CN104237947A (en) * | 2014-05-08 | 2014-12-24 | 珠海市泰德企业有限公司 | Well locking device for seismic apparatus in well |
| CN109899014A (en) * | 2019-01-31 | 2019-06-18 | 张化庆 | Pulling device, control method and control device in a kind of water injection well |
| CN109899014B (en) * | 2019-01-31 | 2021-05-11 | 张化庆 | Dropping and fishing device in water injection well, control method and control device |
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