CN100402973C - Oil well depth and cable pulling force measurement device - Google Patents
Oil well depth and cable pulling force measurement device Download PDFInfo
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- CN100402973C CN100402973C CNB2006101117075A CN200610111707A CN100402973C CN 100402973 C CN100402973 C CN 100402973C CN B2006101117075 A CNB2006101117075 A CN B2006101117075A CN 200610111707 A CN200610111707 A CN 200610111707A CN 100402973 C CN100402973 C CN 100402973C
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Abstract
The disclosed cable tension measurement device for depth of oil well comprises: a measuring wheel rotary arranged on a frame, a depth coder and conductive slide loop both arranged on central shaft of the wheel, at least one slot radial arranged on the wheel to extend from wheel out edge to near center, and a couple of blind holes every with corresponding strain gage arranged on positive and negative surfaces of the wheel opposite to the slot and connected to the inner loop of the conductive loop. This invention can measure the depth of tool in the well and the tension of cable accurately and conveniently.
Description
Technical field
The invention belongs to the measurement mechanism field, relate to a kind of with the degree of depth of cable measurement oil well and the measurement mechanism of the suffered pulling force of cable.
Background technology
At present, when using cable (steel wire, wire rope or cable) that tool string (instrument or subsurface tool) is lowered into when testing in the oil well, the degree of depth in the tool string lower going-into-well, be to obtain by the length of measuring cable, promptly under the drive of friction force, rotate measurement wheel by the motion of cable, calculate the revolution of measurement wheel,, obtain the degree of depth in the oil well of being lowered to of tool string by the coefficient correction.And the measurement of the suffered at the volley pulling force of cable then is to measure by the pulling force sensor that is installed in addition on the cable.Therefore, need use two cover measurement mechanisms simultaneously when measuring, not only equipment is many, and it is also very inconvenient to use.
Summary of the invention
At the deficiencies in the prior art, purpose of the present invention just provides a kind of string of survey instrument simultaneously and is lowered to the degree of depth in the oil well and the oil well depth and the cable pulling force measurement device of the suffered pulling force of cable.
For achieving the above object, oil well depth of the present invention and cable pulling force measurement device comprise support and measurement wheel, and wherein, described measurement wheel is rotatably installed on the support, is separately installed with depth encoder and conducting slip ring on the central shaft of measurement wheel; Described measurement wheel upper edge measurement wheel radially be provided with at least one slit, described slit extends and ends near this center to the center of measurement wheel along the outer rim of described measurement wheel; A surface of this measurement wheel adjacent with described each slit is provided with a pair of blind hole, also be provided with a pair of blind hole with corresponding another the lip-deep same position in this surface, be respectively arranged with foil gauge in each blind hole, each foil gauge links to each other with the interior ring of described conducting slip ring by lead, and conducting slip ring links to each other with the external device with treatment circuit.
Further, the equipment of described extraneous treatment circuit is single-chip microcomputer or storer;
Further, described slit is two, and two slits are that the center is symmetrical arranged with the center of described measurement wheel; The corresponding two pairs of blind holes of described two slits are separately positioned on the first half and the latter half of described measurement wheel;
Further, also comprise at least one angle sheave, this angle sheave is fixed on the described support, and the outer rim of this angle sheave is corresponding with the outer rim of described measurement wheel;
Further, described angle sheave is two, and two angle sheaves are the both sides that the center is symmetricly set on measurement wheel with the center of described measurement wheel.
Compared with prior art, oil well depth of the present invention and cable pulling force measurement device can be measured tool string simultaneously and be lowered into the degree of depth and the suffered pulling force of cable in the oil well, accurate measurement, and simple in structure, volume is little, and is easy to operate.
Description of drawings
Fig. 1 is the front view of oil well depth of the present invention and cable pulling force measurement device;
Fig. 2 is the left view of Fig. 1.
Embodiment
Among Fig. 1-2, measurement wheel 1 is installed on the support 5 by central shaft 7, measurement wheel 1 passes through key connecting with central shaft 7, one end of central shaft 7 is separately installed with depth encoder 6 and conducting slip ring, conducting slip ring is installed on the central shaft 7 by interior ring, on the support 5 of the both sides up and down of measurement wheel 1, also be fixed with two angle sheaves 2, two angle sheaves 2 all are that single shaft holds single the support and is contained on the assembly, be fixed on the support 5 with screw then, distance between angle sheave 2 and the measurement wheel 1 can be adjusted, and with the degree that compresses of the steel wire on 2 pairs of measurement wheels 1 of control angle sheave, avoids steel wire to jump out.On measurement wheel 1, extend to the center of measurement wheel 1 along the outer rim of measurement wheel 1 respectively along two slits 3 (3 ') that radially are provided with of measurement wheel 1, two slits 3 (3 ') are on the same diameter of measurement wheel 1, but two slits 3 (3 ') do not link to each other each other.Near slit 3 and slit (3 '), be respectively arranged with a pair of blind hole 4 (4 '), blind hole 4 is positioned at the first half of measurement wheel 1, blind hole 4 ' be positioned at the latter half of measurement wheel 1, every pair of blind hole 4 is separately positioned on positive and negative two lip-deep same positions of measurement wheel 1, all be provided with foil gauge in each blind hole 4, each foil gauge links to each other with the interior ring of conducting slip ring by lead, and conducting slip ring links to each other with the treatment circuit of outside.
During work, steel wire is wound with one circuit on measurement wheel 1, the steel wire that is entangled to becomes 180 degree with the steel wire that winds out.The end that winds out end of steel wire links to each other with tool string.When tool string is put into well, steel wire pulling force makes measurement wheel 1 produce axial force, per axial force of taking turns to be born for half of measurement wheel 1 all is 2 times of steel wire pulling force, the electric signal of the strain that the lead of the foil gauge in the blind hole 4 (4 ') in time produces wheel hub, be sent to outside treatment circuit by conducting slip ring, handle as single-chip microcomputer, then it is demarcated, can obtain steel wire pulling force.With the depth encoder that the central shaft 7 of measurement wheel 1 links to each other, then write down out steel wire and be lowered to or the rotation number of turns of measurement wheel 1 in the process originally, can obtain the depth location of subsurface tool string.
In addition, also can store, and then electric signal is obtained the suffered value of thrust of steel wire by treatment circuit by storer by the electric signal that conducting slip ring sends out.
Claims (5)
1. oil well depth and cable pulling force measurement device is characterized in that comprise support and measurement wheel, wherein, described measurement wheel is rotatably installed on the support, is separately installed with depth encoder and conducting slip ring on the central shaft of measurement wheel; Described measurement wheel upper edge measurement wheel radially be provided with at least one slit, described slit extends and ends near this center to the center of measurement wheel from the outer rim of described measurement wheel; A surface of this measurement wheel adjacent with described each slit is provided with a pair of blind hole, also be provided with a pair of blind hole with corresponding another the lip-deep same position in this surface, be respectively arranged with foil gauge in each blind hole, each foil gauge links to each other with the interior ring of described conducting slip ring by lead, and conducting slip ring links to each other with the external device with treatment circuit.
2. oil well depth according to claim 1 and cable pulling force measurement device is characterized in that, the equipment of described extraneous treatment circuit is single-chip microcomputer or storer.
3. oil well depth according to claim 1 and cable pulling force measurement device is characterized in that, described slit is two, and two slits are that the center is symmetrical arranged with the center of described measurement wheel; The corresponding two pairs of blind holes of described two slits are separately positioned on the first half and the latter half of described measurement wheel.
4. oil well depth according to claim 1 and cable pulling force measurement device is characterized in that, also comprise at least one angle sheave, and this angle sheave is fixed on the described support, and the outer rim of this angle sheave is corresponding with the outer rim of described measurement wheel.
5. oil well depth according to claim 4 and cable pulling force measurement device is characterized in that, described angle sheave is two, and two angle sheaves are the both sides that the center is symmetricly set on measurement wheel with the center of described measurement wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101117075A CN100402973C (en) | 2006-08-24 | 2006-08-24 | Oil well depth and cable pulling force measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101117075A CN100402973C (en) | 2006-08-24 | 2006-08-24 | Oil well depth and cable pulling force measurement device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1908574A CN1908574A (en) | 2007-02-07 |
| CN100402973C true CN100402973C (en) | 2008-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101117075A Active CN100402973C (en) | 2006-08-24 | 2006-08-24 | Oil well depth and cable pulling force measurement device |
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| CN (1) | CN100402973C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017967B (en) * | 2012-12-06 | 2014-12-03 | 哈尔滨工程大学 | Underwater spoke type force sensor |
| CN103776577B (en) * | 2014-01-03 | 2016-05-04 | 中国矿业大学 | Steady rope tension checkout gear and the detection method of construction vertical hanging scaffold |
| CN104236953A (en) * | 2014-10-11 | 2014-12-24 | 江苏交科工程检测技术有限公司 | Core drilling depth metering device |
| CN104406654A (en) * | 2014-11-25 | 2015-03-11 | 苏州赛智达智能科技有限公司 | Liquid level detecting method |
| CN104406655A (en) * | 2014-11-25 | 2015-03-11 | 苏州赛智达智能科技有限公司 | Multi-functional liquid indicator |
| CN105043591A (en) * | 2015-05-14 | 2015-11-11 | 金陵科技学院 | Temperature measuring equipment for logistics |
| CN106761686B (en) * | 2016-12-13 | 2019-06-18 | 云南航天工程物探检测股份有限公司 | Self-adapting type intelligence well depth measuring device and measurement method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5305649A (en) * | 1992-04-13 | 1994-04-26 | Halliburton Company | Cable length and tension measuring device |
| US6070472A (en) * | 1997-02-06 | 2000-06-06 | Sms Schloemann-Siemag Aktiengesellschaft | Planarity measuring roller |
| CN1342883A (en) * | 2000-07-20 | 2002-04-03 | 韦克莱奇姆公司 | Roller for continuous measuring stress distribution applied on strip |
| CN2599520Y (en) * | 2003-01-22 | 2004-01-14 | 张丕元 | Depth tension logging sensor |
-
2006
- 2006-08-24 CN CNB2006101117075A patent/CN100402973C/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5305649A (en) * | 1992-04-13 | 1994-04-26 | Halliburton Company | Cable length and tension measuring device |
| US6070472A (en) * | 1997-02-06 | 2000-06-06 | Sms Schloemann-Siemag Aktiengesellschaft | Planarity measuring roller |
| CN1342883A (en) * | 2000-07-20 | 2002-04-03 | 韦克莱奇姆公司 | Roller for continuous measuring stress distribution applied on strip |
| CN2599520Y (en) * | 2003-01-22 | 2004-01-14 | 张丕元 | Depth tension logging sensor |
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| CN1908574A (en) | 2007-02-07 |
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