CN101182766B - Measurement method of down-hole boring tool (drill) rotative velocity and direction and short node - Google Patents
Measurement method of down-hole boring tool (drill) rotative velocity and direction and short node Download PDFInfo
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- CN101182766B CN101182766B CN200710188552XA CN200710188552A CN101182766B CN 101182766 B CN101182766 B CN 101182766B CN 200710188552X A CN200710188552X A CN 200710188552XA CN 200710188552 A CN200710188552 A CN 200710188552A CN 101182766 B CN101182766 B CN 101182766B
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- fluxgate
- drill bit
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- assemblies
- drilling tool
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- 238000000691 measurement method Methods 0.000 title description 2
- 238000000034 method Methods 0.000 claims abstract description 28
- 230000000712 assembly Effects 0.000 claims description 26
- 238000000429 assembly Methods 0.000 claims description 26
- 210000002445 nipple Anatomy 0.000 claims description 22
- 238000005259 measurement Methods 0.000 claims description 11
- 239000000696 magnetic material Substances 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 66
- 238000005516 engineering process Methods 0.000 abstract description 3
- 206010045453 Umbilical cord short Diseases 0.000 abstract 1
- 238000004458 analytical method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
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Abstract
The present invention relates to the art of underground parameters measuring technology, in particular to a method of measuring the rotating speed and the direction of an underground drilling tool (a drilling head) and a short chord. In order to overcome the non-intuitive and the inaccurate problem of the prior technology, the technical method provided by the present invention is that two groups of fluxgate modules are arranged on the drilling tool (the drilling head) which is measured or the short chord rigidly coupled with the upper and the lower parts of the drilling tool (the drilling head) which is measured; the two fluxgate modules are respectively arranged on different axial vertical lines in the 90-degree arc region of a rotating surface. The short cord for measuring provided by the present invention includes a hollow body; the two ends of the body are provided with an internal threaded joint end and an external threaded joint end; the external side of the body is provided with a non-magnetic external sleeve; two groups of fluxgate modules are arranged between the body and the external sleeve, and respectively located on vertical lines of different axial direction in the 90-degree arc region of a rotating surface. The present invention has the advantages of low cost, wide application range, simple structure and high security.
Description
Affiliated technical field:
The present invention relates to the down-hole and use parameter measuring technical field, be specifically related to the measuring method and the pipe nipple of a kind of down-hole equipment (drill bit) rotary speed and direction.
Background technology:
In order to understand the duty of mining drilling tool (drill bit) in the downhole drill process, need to be grasped the various parameters of down-hole equipment (drill bit) operation.In these parameters, rotating speed is one of them significant data.In order to obtain parameter accurately; The method that was in the past adopted is: the rotating speed of being estimated down-hole equipment (drill bit) by the rotating speed of aboveground drilling tool; The method that does not also have direct energy measurement down-hole equipment (drill bit) rotating speed at present; Estimate that by the rotating speed of aboveground drilling tool the problem that this method of rotating speed of down-hole equipment (drill bit) exists is not have accuracy, can say that aboveground drilling tool rotating speed is not being represented the rotating speed of down-hole equipment (drill bit) because the drilling rod of last km has no rigidity in the process that creep into the down-hole.And under the situation of drilling tool (drill bit) drilling well of adopting Luo bar pump, aboveground drilling rod is motionless, and the rotating speed of the down-hole equipment of down-hole (drill bit) then can't be estimated.
Drilling tool (drill bit) is important as parameters such as down-hole pressure, temperature, moment of torsion, axle power at the downhole drill rotating speed; It is extremely important to guaranteeing drilling safety to obtain these parameters, also is an indispensable information to the failure analysis of drill bit, the aspects such as optimal design of drill bit in addition.At present and in the future extended reach well is the trend of drilling well industry with horizontal well, increasing along with extended reach well and horizontal well, and the situation of employing Luo bar pump drill well also gets more and more, and not having drilling tool (drill bit) is inconceivable thing in the tachometric survey of downhole drill.
Because the particularity of downhole operations; The rotation direction of drilling tool (drill bit) also is one and does not allow wield parameter; Drilling tool (drill bit) generally is that folk prescription rotates to constant speed under the situation that drilling tool (drill bit) normally creeps into; When situation such as down-hole generation chance card, bit bouncing, the rotating speed of drilling tool (drill bit) will change even reverse.Rotating speed and orientation measurement through drilling tool (drill bit) can in time be understood down-hole information, make the technician in time take Corresponding Countermeasures to guarantee the safety of normal drilling well and wellbore construction.Because mining site drilling well particularly oil drilling cost is high, so the lay special stress on safety.If untimely accurate understanding down-hole information can cause catastrophic consequence.The producer as drilling tool and drill bit knows their failure reasons and mechanism through understanding down-hole equipment and drill speed in addition, can optimize their design and fabrication scheme thus.
Also there are not to provide intuitively, exactly the measuring method and the equipment of drilling tool (drill bit) rotary speed, direction at present.
Summary of the invention:
One of the object of the invention is the measuring method that a kind of down-hole equipment (drill bit) rotary speed and direction will be provided; Two of purpose provides a kind of pipe nipple of developing according to the measuring method of above-mentioned down-hole equipment (drill bit) rotary speed and direction, to overcome the problem non-directly perceived, inaccurate that prior art exists.
For overcoming the problem that prior art exists; Technical scheme provided by the invention is: the measuring method of a kind of down-hole equipment (drill bit) rotary speed and direction; It is upward or on the pipe nipple of the upper and lower rigid connection of tested drilling tool (drill bit) two groups of fluxgate assemblies to be set at tested drilling tool (drill bit); Two groups of fluxgate assemblies lay respectively at disalignment in the 90 degree radian zones of the surfaces of revolution on vertical line; The circumferential variation number of times is changed in the circumferential variation magnetic field that records on the fluxgate into, and unit interval inner periphery change frequency is a circumferential variation speed, just the rotary speed of drilling tool (drill bit); The signal that while two groups of fluxgate assemblies send has phase difference, utilizes phase difference can judge the rotation order of two groups of fluxgate assemblies, also just can confirm rotation direction.
Above-mentioned fluxgate assembly is arranged in the outer sleeve of drilling tool (drill bit) or pipe nipple usually.Identical with the set-up mode of other conventional assembly, can be provided with as long as have living space.
Pipe nipple is used in the measurement of a kind of down-hole equipment (drill bit) rotary speed and direction; Comprise hollow body 3; The two ends of body 3 are provided with internal thread union end 1 and external screw thread union end 6; The arranged outside of body 3 has or not the outer sleeve 2 of magnetic, between body 3 and outer sleeve 2, is provided with two groups of fluxgate assemblies (4) and fluxgate assembly (5), and these two groups of fluxgate assemblies (4) and fluxgate assembly (5) lay respectively at disalignment in the 90 degree radian zones of the surfaces of revolution on vertical line.Thereby realize utilizing fluxgate to carry out the measurement of down-hole equipment (drill bit) rotary speed and direction.
Above-mentioned fluxgate assembly (4) and fluxgate assembly (5) comprise fluxgate and control collection memory module respectively.
Above-mentioned body 3 is processed by no magnetic material.
The present invention has filled up the blank of drilling tool (drill bit) rotary speed and orientation measurement, can understand the rotating speed and the direction of down-hole equipment (drill bit) intuitively, exactly.As everyone knows; Drilling tool (drill bit) its rotating speed and direction of rotation in normal drilling process are substantially invariable; But in the process of down-hole equipment (drill bit) in drilling well of the surface driving of routine, run into the situation that bit freezing, bit bouncing etc. influence safety drilling through regular meeting; In the drilling process that Luo bar pump drives; The normal drilling well of down-hole equipment (drill bit) is because the variation of drive unit fault or geological condition also can be damaged, and drilling tool (drill bit) rotating speed is the major parameter that can directly reflect drilling well working condition quality.
Advantage of the present invention is:
1, cost is low: make full use of natural magnetic energy and measure rotating speed, it is low to measure cost.
2, applied widely: the drilling tool rotating speed applicable to various underground works is measured; Can understand underground work information indirectly through drilling tool (drill bit) rotating speed; Like the damage of drilling tool (drill bit), the variation of geological stratification etc., be particularly useful for the measurement of drilling tool (drill bit) drilling speed of Luo bar pump.
3, simple in structure: the inventive method is implemented easily; The fluxgate assembly that this method adopted is a kind of equipment commonly used; The static parameter that often was used to carry out the orientation of drilling tool in the industry in probing is in the past measured; In the present invention it is applied in the kinetic measurement of rotating speed of drilling tool, it is arranged on any conventional drilling tool (drill bit) is gone up or tested drilling tool (drill bit) all can be realized measuring up and down through method of the present invention.For the enforcement that illustrates further the inventive method is easy, also provide a kind of simple in structure especially in concrete structure aspects the present invention, the pipe nipple of easy manufacture and processing.
4, safe: because simple in structure, implementing does not influence the safety of other drilling tool drilling wells easily.
Description of drawings:
Fig. 1 is the principle schematic of an implementation method of the present invention;
Fig. 2 is the measuring principle sketch map;
Fig. 3 is the principle schematic of another implementation method of the present invention;
Fig. 4 is the measuring principle sketch map;
Fig. 5 is the structural representation of application implementation example;
Fig. 6 is the A-A sectional view of Fig. 5.
Description of reference numerals is following:
1-internal thread union end; The 2-outer sleeve; The 3-body; 4-fluxgate assembly; 5-fluxgate assembly, 6-external screw thread union end, 7-battery.
The specific embodiment:
To combine accompanying drawing that the present invention is at length explained below.
The present invention provides the measuring method of a kind of down-hole equipment (drill bit) rotary speed and direction; It is upward or on the pipe nipple of the upper and lower rigid connection of tested drilling tool (drill bit) two groups of fluxgate assemblies to be set at tested drilling tool (drill bit); Two groups of fluxgate assemblies lay respectively at disalignment in the 90 degree radian zones of the surfaces of revolution on vertical line; The circumferential variation number of times is changed in the circumferential variation magnetic field that records on the fluxgate into, and unit interval inner periphery change frequency is circumferential variation speed, just rotary speed; The signal that while two groups of fluxgate assemblies send has phase difference, utilizes phase difference can judge the rotation order of two groups of fluxgate assemblies, also just can confirm rotation direction.
The set-up mode of above-mentioned fluxgate assembly is identical with the set-up mode of other conventional assembly, can be provided with as long as have living space, and is arranged at usually in the outer sleeve of drilling tool (drill bit) or pipe nipple.
The signal that sends owing to two groups of fluxgate assemblies is shown as two sinusoidal waveforms, and these two sinusoidal waveforms have phase difference, utilizes phase difference can judge the rotation order of two groups of fluxgate assemblies, also just can confirm rotation direction.In the present embodiment, fluxgate assembly 4 leading fluxgate assembly 5 one phase bits, the lead and lag information according to fluxgate assembly 4, fluxgate assembly 5 phase places just can obtain direction of rotation information.Can see that drilling tool (drill bit) is by rotation counterclockwise.
Identical with embodiment 1, utilize phase difference can judge the rotation order of two groups of fluxgate assemblies, also just can confirm the rotation direction of drilling tool (drill bit) through the rotation direction of pipe nipple.In the present embodiment, can see that drilling tool (drill bit) rotates in the direction of the clock.
The pipe nipple that present embodiment provided is custom-designed when normally no space is provided with the fluxgate assembly on the pipe nipple commonly used of last perhaps its upper and lower rigid connection of tested drilling tool (drill bit).It is as a pipe nipple, and adopts rigid connection between the tested drilling tool (drill bit), and its inside can also be provided with other measureing equipment, so that make full use of the space of this pipe nipple.
Claims (3)
1. the measuring method of downhole drill bit rotary speed and direction; It is on the tested drill bit or on the pipe nipple of the upper and lower rigid connection of tested drill bit two groups of fluxgate assemblies to be set; Two groups of fluxgate assemblies lay respectively at disalignment in the 90 degree radian zones of the surfaces of revolution on vertical line; Include fluxgate in said two groups of fluxgate assemblies and gather memory module with control; The circumferential variation number of times is changed in the circumferential variation magnetic field that records on the fluxgate into, and unit interval inner periphery change frequency is a circumferential variation speed, just the rotary speed of drill bit; The signal phase difference that utilizes two groups of fluxgate assemblies to send simultaneously can be judged the rotation order of two groups of fluxgate assemblies, also just can confirm rotation direction.
2. a kind of downhole drill bit rotary speed and the orientation measurement that measuring method adopted of a kind of downhole drill bit rotary speed according to claim 1 and direction are used pipe nipple; It is characterized in that: comprise hollow body (3); The two ends of body (3) are provided with internal thread union end (1) and external screw thread union end (6); The arranged outside of body (3) has or not the outer sleeve (2) of magnetic; Between body (3) and outer sleeve (2), be provided with the first fluxgate assembly (4) and the second fluxgate assembly (5), the first fluxgate assembly (4) and the second fluxgate assembly (5) lay respectively at disalignment in the 90 degree radian zones of the surfaces of revolution on vertical line.
3. a kind of downhole drill bit rotary speed according to claim 2 and orientation measurement are used pipe nipple, it is characterized in that: said body (3) is processed by no magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710188552XA CN101182766B (en) | 2007-12-11 | 2007-12-11 | Measurement method of down-hole boring tool (drill) rotative velocity and direction and short node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710188552XA CN101182766B (en) | 2007-12-11 | 2007-12-11 | Measurement method of down-hole boring tool (drill) rotative velocity and direction and short node |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101182766A CN101182766A (en) | 2008-05-21 |
| CN101182766B true CN101182766B (en) | 2012-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710188552XA Expired - Fee Related CN101182766B (en) | 2007-12-11 | 2007-12-11 | Measurement method of down-hole boring tool (drill) rotative velocity and direction and short node |
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| Country | Link |
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| CN (1) | CN101182766B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106032749B (en) * | 2015-03-09 | 2019-09-13 | 通用电气公司 | Measurement while drilling device and method |
| CN107701129B (en) * | 2017-09-01 | 2023-11-10 | 长江大学 | Electromagnetic rotating speed control short joint of downhole tool |
| CN111364976B (en) * | 2020-04-02 | 2023-09-19 | 中国铁建重工集团股份有限公司 | Inclined plane drill bit direction recognition device and system of horizontal core drilling machine |
| CN113702658A (en) * | 2021-07-16 | 2021-11-26 | 中国石油天然气集团有限公司 | Rotating speed measuring device and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2254430A (en) * | 1991-04-05 | 1992-10-07 | Marconi Gec Ltd | Drilling apparatus |
| CN1090927A (en) * | 1992-10-19 | 1994-08-17 | Abskf公司 | Method and apparatus in the bearing |
| CN2735343Y (en) * | 2004-07-30 | 2005-10-19 | 刘柏榆 | Car wheel speed sensor |
| CN201152170Y (en) * | 2007-12-11 | 2008-11-19 | 西安石油大学 | Pup joint capable of measuring down-hole boring tool rotation velocity and direction |
-
2007
- 2007-12-11 CN CN200710188552XA patent/CN101182766B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2254430A (en) * | 1991-04-05 | 1992-10-07 | Marconi Gec Ltd | Drilling apparatus |
| CN1090927A (en) * | 1992-10-19 | 1994-08-17 | Abskf公司 | Method and apparatus in the bearing |
| CN2735343Y (en) * | 2004-07-30 | 2005-10-19 | 刘柏榆 | Car wheel speed sensor |
| CN201152170Y (en) * | 2007-12-11 | 2008-11-19 | 西安石油大学 | Pup joint capable of measuring down-hole boring tool rotation velocity and direction |
Non-Patent Citations (1)
| Title |
|---|
| 李朝晖等.基于磁通门技术的空炸引信计转数系统研究.《弹道学报》.2003,第15卷(第2期),第77-82页. * |
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|---|---|
| CN101182766A (en) | 2008-05-21 |
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Granted publication date: 20120328 |