CN103437757A - Well drilling tension gauge - Google Patents
Well drilling tension gauge Download PDFInfo
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- CN103437757A CN103437757A CN2013102958665A CN201310295866A CN103437757A CN 103437757 A CN103437757 A CN 103437757A CN 2013102958665 A CN2013102958665 A CN 2013102958665A CN 201310295866 A CN201310295866 A CN 201310295866A CN 103437757 A CN103437757 A CN 103437757A
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- strain
- strain beam
- briquetting
- nut seat
- lock handle
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Abstract
The invention discloses a well drilling tension gauge. The middle of the top of a strain beam is provided with a pair of upright post screw bolts, a force application screw nut seat is fixedly arranged at the upper parts of the two upright post screw bolts, the center of the force application screw nut seat is provided with an internal threaded through hole, a press block is vertically and glidingly arranged between the two upright post screw bolts, the lower part of a locking handle is provided with a threaded rod, the threaded rod arranged at the lower part of the locking handle is screwed into the internal threaded through hole in the force application screw nut seat, in addition, the bottom end of the threaded rod is rotationally arranged at the top of the press block, the lateral part of the strain beam is provided with a pair of strain beam blind holes in the strain beam to be used as a strain region, and a strain gauge sensor and a sensor signal collecting circuit are respectively embedded in each strain beam blind hole.
Description
Technical field
The present invention relates to oil field drilling pressure measuring device field, be specially a kind of drilling well tensiometer.
Background technology
In oil drilling, the measurement of the pressure of the drill can help the driller to keep satisfactory even the pressure of the drill, be conducive to obtain wellbore quality and higher drilling speed preferably, also can prevent from surpassing the operation of derrick or Hoisting System ability simultaneously, the title of driller " eyes " is therefore arranged.The pressure of the drill adopts the method for measuring weight on hook indirectly to be measured usually.
Weight on hook generally adopts diaphragm type power-hydrostatic sensor to measure at present, the complex structure of this sensor, and it is comprised of pressure-bearing chamber, platen, rolling thin slice etc.On dead line anchor, have one by bearing, to be fixed on the cylinder with the arm beam on pedestal, accessory kit is too many, bulky, and cost is too high.In operation when wire rope is subject to upwards tension force, by cylinder, it is become to the pulling force acted on sensor, sensor pressure-bearing chamber pressure is increased, pulling force is become to hydraulic pressure signal, change arm beam and cylinder sizes, or sensor pressure-bearing chamber sectional area, with same hydraulic pressure signal, mean different weight on hooks.This device can not directly be measured, but changes weight on hook into by surveying hydraulic rotation.
Summary of the invention
The purpose of this invention is to provide a kind of drilling well tensiometer, the problem that can't directly measure to solve prior art the pressure of the drill.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of drilling well tensiometer, include the strain beam of rectangle seat shape, it is characterized in that: described strain beam crown center is provided with a column bolt, two column bolts are arranged along the direction vertical with strain beam length limit, also comprise application of force nut seat, lock handle, briquetting, described application of force nut seat is fixedly mounted on two column bolt tops, application of force nut seat center has internal thread through hole, described briquetting vertically is slidably mounted between two column bolts, the briquetting bottom is provided with the center line arc indent parallel with strain beam length limit in briquetting, described lock handle bottom is set to outer wall and forms externally threaded threaded rod, lock handle lower thread bar is screwed in application of force nut seat internal thread through hole and stretches into application of force nut seat below, between two column bolts, and lock handle lower thread bar bottom is rotatably installed in the briquetting top,
Described strain beam two sides respectively are provided with a pair of, and the strain beam blind hole A of totally 4 sealings, B, C, D are as strain regions.A, B and C, two pairs of blind hole central axis of D are respectively perpendicular to the strain beam long side direction, and A, C and B, two pairs of blind hole central axis of D are parallel in the strain beam long side direction, A, B and C, two strain regions of D each in strain beam center line one side, and equate with distance between center line.Post the piece of metal foil gauge by special angle on A, B, C, tetra-blind hole base plane of D, form the strain full-bridge, and temperature-compensation circuit;
There is a sensor lead-out wire port strain beam another side, port is designed with an inner chamber E transmitter circuit is installed along the strain beam inboard, strain full-bridge and transmitter circuit link, transmitter is the power supply of strain full-bridge, strain full-bridge output signal is become to 4-20ma through amplification simultaneously, draw from strain beam end lead-out wire port.
Described a kind of drilling well tensiometer is characterized in that: described strain beam top longitudinal edge direction two ends are respectively arranged with guide bracket, and each guide bracket top is respectively arranged with the center line deep-slotted chip breaker parallel with strain beam length limit in guide bracket.
Described a kind of drilling well tensiometer is characterized in that: described lock handle top is set to crooked polished rod.
Described a kind of drilling well tensiometer is characterized in that: described briquetting both sides are respectively arranged with the chute of deep-slotted chip breaker shape, and briquetting both sides chute is enclosed within respectively on respective side column bolt and is slidably matched with respective side column bolt.
Advantage of the present invention is:
1. the present invention is simple in structure, does not need other additional accessory.Volume is little, and compact conformation is lightweight, and processing cost is low.
2. the present invention is easy for installation, and single 1 ~ 2 action can complete the fixed work of bundle, and repair demolition is convenient.
3. the present invention is bundled on the rig dead line, directly measures dead line tension force, and certainty of measurement is high.
4. temperature-compensating of the present invention, the collecting sensor signal circuit all is embedded in the strain regions blind hole, with strain beam, combines together.Moistureproof, shockproof, also can export 0-5VDC according to customer requirements, 4-20mA and data signal.
The accompanying drawing explanation
Fig. 1 is structural upright schematic diagram of the present invention.
Fig. 2 is structure side view of the present invention.
Fig. 3 is structure elevation of the present invention.
Concern schematic diagram between Fig. 4 lineoutofservice signal pull and drill string gravity.
Fig. 5 is force analysis principle schematic of the present invention.
Fig. 6 strain beam interface schematic diagram.
The reason figure of Fig. 7 electrical equipment unit.
The specific embodiment
As shown in Fig. 1-Fig. 3.A kind of drilling well tensiometer, include the strain beam 1 of rectangle seat shape, strain beam 1 crown center is provided with a column bolt 2, two column bolts 2 are arranged along the direction vertical with the long limit of strain beam 1, also comprise application of force nut seat 3, lock handle 4, briquetting 5, application of force nut seat 3 is fixedly mounted on two column bolt 2 tops, application of force nut seat 3 centers have internal thread through hole, briquetting 5 vertically is slidably mounted between two column bolts 2, briquetting 5 bottoms are provided with the center line arc indent 6 parallel with the long limit of strain beam 1 in briquetting 5, lock handle 4 bottoms are set to outer wall and form externally threaded threaded rod 41, lock handle 4 lower thread bars 41 are screwed in application of force nut seat 3 internal thread through hole and stretch into application of force nut seat 3 belows, between two column bolts 2, and lock handle 4 lower thread bar 41 bottoms are rotatably installed in briquetting 5 tops,
As shown in Figure 6, described strain beam two sides respectively are provided with a pair of, and the strain beam blind hole A of totally 4 sealings, B, C, D are as strain regions.A, B and C, two pairs of blind hole central axis of D are respectively perpendicular to the strain beam long side direction, and A, C and B, two pairs of blind hole central axis of D are parallel in the strain beam long side direction.A, B and C, two strain regions of D each in strain beam center line one side, and equate with distance between center line.Post the piece of metal foil gauge by special angle on A, B, C, tetra-blind hole base plane of D, form the strain full-bridge, and temperature-compensation circuit.
See that there is a sensor lead-out wire port Fig. 7 strain beam another side, port is designed with an inner chamber E transmitter circuit is installed along the strain beam inboard.Strain full-bridge and transmitter circuit link, and transmitter is the power supply of strain full-bridge, strain full-bridge output signal is become to 4-20ma through amplification simultaneously, from strain beam end lead-out wire port, draws.
Strain beam 1 top longitudinal edge direction two ends are respectively arranged with guide bracket 7, and each guide bracket 7 top is respectively arranged with the center line deep-slotted chip breaker 71 parallel with the long limit of strain beam 1 in guide bracket 7.
Briquetting 5 both sides are respectively arranged with the chute of deep-slotted chip breaker shape, and briquetting 5 both sides chutes are enclosed within respectively on respective side column bolt 2 and are slidably matched with respective side column bolt 2.
A guide bracket is respectively designed at strain beam of the present invention two ends, deep-slotted chip breaker is arranged in the middle of guide bracket, strain beam middle part two column bolts, application of force nut seat, lock handle, briquetting form fixedly wire rope device, when wire rope passes from the guide bracket deep-slotted chip breaker of strain beam two ends, between the two column bolts of position, intermediate portion through fixing wire rope device, and briquetting compression in the wire rope device that is fixed.The blind hole that is designed with sealing in both sides, strain beam center, as strain regions, is posted foil gauge in strain regions.
During drillng operation, steel wire rope tension T, by the pressure P produced strain beam, under the pressure P effect, strain beam produces and stretches and compressive deformation, and this deformation produces corresponding shearing stress to strain beam.
According to Ru Lafusi formula in the mechanics of materials, suitably choosing the strain deck-siding by calculating, strain deck-molding and blind hole diameter, after strain-ga(u)ge transducer thickness, when strain beam is subject to steel wire rope tension, strain-ga(u)ge transducer exports the relevant voltage signal, this voltage signal and strain-ga(u)ge transducer can be stressed and be directly proportional, in other words, by the strain-ga(u)ge transducer output signal, directly measure the suffered tension force of wire rope, and then learn the pressure of the drill value.
As seen from Figure 4, weight on hook is shared by the wire rope of the car that moves about, and can calculate weight on hook as long as measure steel wire rope tension, thereby obtain the pressure of the drill.In drilling process, dead line has born the tension force T be directly proportional to weight on hook, does not move again, thereby can indirectly measure weight on hook by measuring dead line tension force.
From Fig. 5, analyze: whole tensiometer pressure P=2TcosQ/2, when measuring strain-ga(u)ge transducer pressure P, can learn steel wire rope tension T.
Claims (4)
1. a drilling well tensiometer, include the strain beam of rectangle seat shape, it is characterized in that: described strain beam crown center is provided with a column bolt, two column bolts are arranged along the direction vertical with strain beam length limit, also comprise application of force nut seat, lock handle, briquetting, described application of force nut seat is fixedly mounted on two column bolt tops, application of force nut seat center has internal thread through hole, described briquetting vertically is slidably mounted between two column bolts, the briquetting bottom is provided with the center line arc indent parallel with strain beam length limit in briquetting, described lock handle bottom is set to outer wall and forms externally threaded threaded rod, lock handle lower thread bar is screwed in application of force nut seat internal thread through hole and stretches into application of force nut seat below, between two column bolts, and lock handle lower thread bar bottom is rotatably installed in the briquetting top,
Described strain beam two sides respectively are provided with a pair of, the strain beam blind hole A of totally 4 sealings, B, C, D are as strain regions, A, B and C, two pairs of blind hole central axis of D are respectively perpendicular to the strain beam long side direction, and A, C and B, two pairs of blind hole central axis of D are parallel in the strain beam long side direction, A, B and C, two strain regions of D are respectively in strain beam center line one side, and equate with distance between center line, post the piece of metal foil gauge by special angle on A, B, C, tetra-blind hole base plane of D, form the strain full-bridge, and temperature-compensation circuit;
There is a sensor lead-out wire port strain beam another side, port is designed with an inner chamber E transmitter circuit is installed along the strain beam inboard, strain full-bridge and transmitter circuit link, transmitter is the power supply of strain full-bridge, strain full-bridge output signal is become to 4-20ma through amplification simultaneously, draw from strain beam end lead-out wire port.
2. a kind of drilling well tensiometer according to claim 1, it is characterized in that: described strain beam top longitudinal edge direction two ends are respectively arranged with guide bracket, and each guide bracket top is respectively arranged with the center line deep-slotted chip breaker parallel with strain beam length limit in guide bracket.
3. a kind of drilling well tensiometer according to claim 1, it is characterized in that: described lock handle top is set to crooked polished rod.
4. a kind of drilling well tensiometer according to claim 1, it is characterized in that: described briquetting both sides are respectively arranged with the chute of deep-slotted chip breaker shape, and briquetting both sides chute is enclosed within respectively on respective side column bolt and is slidably matched with respective side column bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102958665A CN103437757A (en) | 2013-07-15 | 2013-07-15 | Well drilling tension gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102958665A CN103437757A (en) | 2013-07-15 | 2013-07-15 | Well drilling tension gauge |
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| Publication Number | Publication Date |
|---|---|
| CN103437757A true CN103437757A (en) | 2013-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102958665A Pending CN103437757A (en) | 2013-07-15 | 2013-07-15 | Well drilling tension gauge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918419A (en) * | 2017-05-15 | 2017-07-04 | 中国工程物理研究院总体工程研究所 | Disk Brake input pressure measurement sensor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6343515B1 (en) * | 1998-07-02 | 2002-02-05 | Martin-Decker Totco | Method and apparatus for improved measurement of tension and compression in a wireline |
| CN2656976Y (en) * | 2003-10-19 | 2004-11-17 | 魏勇超 | Three-axis sensor |
| CN2783294Y (en) * | 2005-04-12 | 2006-05-24 | 中国矿业大学 | Broken point free steel cable tension tester |
| CN101532817A (en) * | 2009-03-26 | 2009-09-16 | 广州电测仪器厂 | Resistance strain gauge and sensor using resistance strain gauge to change stress transfer mode |
| CN201355289Y (en) * | 2008-11-25 | 2009-12-02 | 安徽宝龙电器有限公司 | Tension detecting device for mining |
| CN201583373U (en) * | 2010-01-01 | 2010-09-15 | 乐清市艾力仪器有限公司 | Rope tension tester |
| CN203614097U (en) * | 2013-07-15 | 2014-05-28 | 蚌埠赛英电子科技发展有限公司 | Drilling tension meter |
-
2013
- 2013-07-15 CN CN2013102958665A patent/CN103437757A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6343515B1 (en) * | 1998-07-02 | 2002-02-05 | Martin-Decker Totco | Method and apparatus for improved measurement of tension and compression in a wireline |
| CN2656976Y (en) * | 2003-10-19 | 2004-11-17 | 魏勇超 | Three-axis sensor |
| CN2783294Y (en) * | 2005-04-12 | 2006-05-24 | 中国矿业大学 | Broken point free steel cable tension tester |
| CN201355289Y (en) * | 2008-11-25 | 2009-12-02 | 安徽宝龙电器有限公司 | Tension detecting device for mining |
| CN101532817A (en) * | 2009-03-26 | 2009-09-16 | 广州电测仪器厂 | Resistance strain gauge and sensor using resistance strain gauge to change stress transfer mode |
| CN201583373U (en) * | 2010-01-01 | 2010-09-15 | 乐清市艾力仪器有限公司 | Rope tension tester |
| CN203614097U (en) * | 2013-07-15 | 2014-05-28 | 蚌埠赛英电子科技发展有限公司 | Drilling tension meter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918419A (en) * | 2017-05-15 | 2017-07-04 | 中国工程物理研究院总体工程研究所 | Disk Brake input pressure measurement sensor |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20131211 |