CN102818999B - Magnetic field gradient testing device and method of non-magnetic drill collar - Google Patents
Magnetic field gradient testing device and method of non-magnetic drill collar Download PDFInfo
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- CN102818999B CN102818999B CN201210327924.3A CN201210327924A CN102818999B CN 102818999 B CN102818999 B CN 102818999B CN 201210327924 A CN201210327924 A CN 201210327924A CN 102818999 B CN102818999 B CN 102818999B
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Abstract
The invention belongs to the technical field of magnetic field gradient testing of non-magnetic petroleum drills, in particular to a magnetic field gradient testing device of a non-magnetic drill collar and a method for testing a magnetic field gradient by adopting the magnetic field gradient testing device. The magnetic field gradient testing device of the non-magnetic drill collar comprises a computer recording device, a measurement probe connected with the computer recording device, a trolley used for driving the non-magnetic drill collar to move, and a support frame used for fixing and supporting the measurement probe. According to the magnetic field gradient testing device of the non-magnetic drill collar and a yard, in the yard for testing the magnetic property of the drill collar, by using the magnetic property testing device, a magnetic field gradient recording curve can accurately reflect the magnetic field gradient distribution condition of an inner hole of a drill, and can be used for accurately checking the magnetic property of the drill.
Description
Technical field
The invention belongs to without magnetite oil drilling tool magnetic field gradient technical field of measurement and test, be specifically related to a kind of non magnetic drill collar magnetic field gradient testing arrangement and adopt this device to carry out the method for testing.
Background technology
Because my company is directly engaged in the manufacturing of non-magnetic drilling tool, up to the present, on the market of non-magnetic drilling tool, occupation rate keeps first always.Specify according to " SY/T 5144-2007 People's Republic of China (PRC) oil and gas industry standard-drill collar standard " 6.4.2 clause magnetic performance testing method: C type drill collar non magnetic drill collar departs from uniform magnetic field maximum deviation and be no more than ± 0.05 μ T, drilling tool is placed in positive North and South direction, pop one's head in motionless, tested drill collar north-south movement, makes probe measure any magnetic field gradient Δ B value at a distance of 100mm along endoporus.Do not find at present domesticly have this visual inspection survey technology.According to this present situation, we develop this set of testing arrangement, and may be used for domestic and detection that is exported product.
Summary of the invention
The object of the invention is to customer service deficiency of the prior art and provide a kind of easy to operate, structure is simple, can measure non magnetic drill collar magnetic field gradient testing arrangement and the method for testing thereof of the magnetic property of drill collar accurately.
The object of the present invention is achieved like this: a kind of non magnetic drill collar magnetic field gradient testing arrangement, it is characterized in that: comprise computer record device, the measuring probe be connected with computer record device, in order to drive the dolly of non magnetic drill collar movement, the bracing frame in order to fixed support measuring probe
Described measuring probe is fixedly mounted in the cylinder shape sensor protective cover of a hollow; the two ends of described columniform sensor protective cover are provided with two spliced eyes; insulating bar is fitted with in a spliced eye; this insulating bar is fixedly installed on bracing frame; the circumscripted power line connecting computer record device and measuring probe is fitted with in another spliced eye
Described dolly is driven by hoist engine and slides along two-orbit, and the cylinder shape sensor protective cover simultaneously does the relative sliding of level in the endoporus of non magnetic drill collar.
Described bracing frame is made up of the hold-down support of horizontally disposed probe fixed bar and vertically setting.
Described cylinder shape sensor protective cover is docked by two semi-cylindrical sensor protective covers and forms, and two semi-cylindrical sensor protective covers are undertaken fastening by screw.
The body part of described dolly adopts wood materials, and wheel hub and wheel shaft adopt stainless steel material.
Described two-orbit adopts bakelite plate material.
The described insulating bar being inserted into cylinder shape sensor protective cover one end adopts epoxy rods.
Described computer record device is for be formed by connecting by magnetic field intensity signal converter and computer, and described magnetic field intensity signal converter is popped one's head in observation and is connected.
Non magnetic drill collar magnetic field gradient testing arrangement carries out a method of testing, and method is as follows:
First, adopt cement, particle diameter after filtration is the thick yellow sand of 0.6-0.8mm, particle diameter is less than the stone of 8mm and water lays the ground of test site by the weight ratio mixing of 1:2:4:0.5, two-orbit selects thickness to be the insulating material bakelite plate of 30mm, be that two-orbit anchors on ground by the copper coin of 3mm and fastener with thickness, place dolly, measuring probe is mounted in cylinder shape sensor protective cover, non magnetic drill collar is fixed on dolly, by cylinder shape sensor protective cover, put into non magnetic drill collar endoporus, secondly, dolly is driven at the uniform velocity to move with the speed of 1 m/min by hoist engine, measuring probe keeps motionless, move with the relative velocity of 1 m/min with drill collar, measuring probe measures the electromagnetic intensity value transmit of 100mm apart to magnetic field intensity signal converter by along non magnetic drill collar endoporus, converter is by signal transacting, computer is delivered to through connection, in computer, utilize VB software to set up with drill collar length as transverse axis, drill collar magnetic field gradient Δ B value is the coordinate system of the longitudinal axis, using ± 0.05 μ T as bound on coordinate system, computer record probe measures any some magnetic induction intensity value at a distance of 100mm along endoporus, using the difference of 2 magnetic induction intensity values as magnetic field gradient Δ B value, thus draw the change curve of whole non magnetic drill collar magnetic field gradient, magnetic field gradient curve is between ± 0.05 μ T is as bound, namely this drill collar magnetic field gradient qualified is judged, as curve exceeds bound, namely judge that this drill collar magnetic field gradient index is defective, and determine defective district.
Described measuring probe forms at a distance of the measurement of magnetic field sensor of 100mm by by two cover straight lines.
The present invention has following advantage: ask applicant's a kind of non-magnetic drilling tool magnetic field gradient testing arrangement provided by the present invention and place, in drill collar magnetism testing place, utilize this cover magnetism testing device, magnetic field gradient recording curve accurately can reflect the magnetic field gradient profile situation of drilling tool endoporus, accurately checks drilling tool magnetic property.
Measuring probe will measure any some magnetic induction intensity value transmit at a distance of 100mm to magnetic field intensity signal converter along non magnetic drill collar endoporus, converter is by signal transacting, computer is delivered to through connection, VB software programming is utilized in computer, set up with drill collar length as transverse axis, drill collar magnetic field gradient Δ B value is the coordinate system of the longitudinal axis, using ± 0.05 μ T as bound on coordinate system, transverse axis coordinate is the long-pending i.e. drill collar length of drill collar run duration and movement velocity, using the difference of 2 magnetic induction intensity values as magnetic field gradient Δ B value, thus draw the change curve of whole non magnetic drill collar magnetic field gradient.
Accompanying drawing explanation
Fig. 1 is the structural representation of measuring transducer part of the present invention.
Fig. 2 is the plan structure schematic diagram of Fig. 1.
Fig. 3 is the A-A sectional view in Fig. 1.
Fig. 4 is the B-B sectional view in Fig. 1.
Fig. 5 is the structural representation that measuring probe measures when stopping.
Fig. 6 is that measuring probe measures ongoing structural representation.
Fig. 7 be measuring probe measure initial time structural representation.
Fig. 8 is non-magnetic drilling tool test curve figure.
Detailed description of the invention
Below in conjunction with concrete embodiment, the invention will be further described.
As shown in Fig. 1,2,3,4,5, a kind of non magnetic drill collar magnetic field gradient testing arrangement, comprise computer record device (2), the measuring probe 1 be connected with computer record device, in order to drive the dolly (3) of non magnetic drill collar movement, the bracing frame (4) in order to fixed support measuring probe (1)
Described measuring probe 1 is fixedly mounted in the cylinder shape sensor protective cover 5 of a hollow; the two ends of described columniform sensor protective cover 5 are provided with two spliced eyes 6; insulating bar 7 is fitted with in a spliced eye; this insulating bar 7 is fixedly installed on bracing frame 4; the circumscripted power line 8 connecting computer record device 2 and measuring probe 1 is fitted with in another spliced eye
Described dolly 3 is driven by hoist engine 9 and slides along two-orbit 13, and the cylinder shape sensor protective cover 5 simultaneously does the relative sliding of level in the endoporus of non magnetic drill collar.
Described bracing frame 4 is made up of the hold-down support 11 of horizontally disposed probe fixed bar 10 and vertically setting.
Described cylinder shape sensor protective cover 5 is docked by two semi-cylindrical sensor protective covers and forms, and two semi-cylindrical sensor protective covers are undertaken fastening by screw 12.
The body part of described dolly 3 adopts wood materials, and wheel hub and wheel shaft adopt stainless steel material.
Described two-orbit 13 adopts bakelite plate material.
The described insulating bar 7 being inserted into cylinder shape sensor protective cover 5 one end adopts epoxy rods.
Described computer record device 2 is for be formed by connecting by magnetic field intensity signal converter and computer, and described magnetic field intensity signal converter is connected with observation probe 1.
Non magnetic drill collar magnetic field gradient testing arrangement carries out a method of testing, and method is as follows:
First, adopt cement, particle diameter after filtration is the thick yellow sand of 0.6-0.8mm, particle diameter is less than the stone of 8mm and water lays the ground of test site by the weight ratio mixing of 1:2:4:0.5, two-orbit selects thickness to be the insulating material bakelite plate of 30mm, be that two-orbit anchors on ground by the copper coin of 3mm and fastener with thickness, place dolly, measuring probe is mounted in cylinder shape sensor protective cover, non magnetic drill collar is fixed on dolly, by cylinder shape sensor protective cover, put into non magnetic drill collar endoporus, secondly, dolly is driven at the uniform velocity to move with the speed of 1 m/min by hoist engine, measuring probe keeps motionless, move with the relative velocity of 1 m/min with drill collar, measuring probe measures the electromagnetic intensity value transmit of 100mm apart to magnetic field intensity signal converter by along non magnetic drill collar endoporus, converter is by signal transacting, computer is delivered to through connection, in computer, utilize VB software to set up with drill collar length as transverse axis, drill collar magnetic field gradient Δ B value is the coordinate system of the longitudinal axis, using ± 0.05 μ T as bound on coordinate system, computer record probe measures any some magnetic induction intensity value at a distance of 100mm along endoporus, using the difference of 2 magnetic induction intensity values as magnetic field gradient Δ B value, thus draw the change curve of whole non magnetic drill collar magnetic field gradient, magnetic field gradient curve is between ± 0.05 μ T is as bound, namely this drill collar magnetic field gradient qualified is judged, as curve exceeds bound, namely judge that this drill collar magnetic field gradient index is defective, and determine defective district.
Described measuring probe forms at a distance of the measurement of magnetic field sensor of 100mm by by two cover straight lines.
Claims (2)
1. a non magnetic drill collar magnetic field gradient method of testing, it is characterized in that: the method adopts without drill collar magnetic field gradient testing arrangement, this device comprise computer record device (2), the measuring probe (1) be connected with computer record device, in order to drive the dolly (3) of non magnetic drill collar movement, the bracing frame (4) in order to fixed support measuring probe (1)
Described measuring probe (1) is fixedly mounted in the cylinder shape sensor protective cover (5) of a hollow; the two ends of described cylinder shape sensor protective cover (5) are provided with two spliced eyes (6); insulating bar (7) is fitted with in a spliced eye; this insulating bar (7) is fixedly installed on bracing frame (4); the circumscripted power line (8) connecting computer record device (2) and measuring probe (1) is fitted with in another spliced eye
Described dolly (3) is driven by hoist engine (9) and slides along two-orbit (13), and the cylinder shape sensor protective cover (5) simultaneously does the relative sliding of level in the endoporus of non magnetic drill collar,
Described bracing frame (4) is made up of the hold-down support (11) of horizontally disposed probe fixed bar (10) and vertically setting,
Described cylinder shape sensor protective cover (5) is docked by two semi-cylindrical sensor protective covers and forms, and two semi-cylindrical sensor protective covers are undertaken fastening by screw (12),
The body part of described dolly (3) adopts wood materials, and wheel hub and wheel shaft adopt stainless steel material,
Described two-orbit (13) adopts bakelite plate material,
The described insulating bar (7) being inserted into cylinder shape sensor protective cover (5) one end adopts epoxy rods,
Described computer record device (2) is for be formed by connecting by magnetic field intensity signal converter and computer, and described magnetic field intensity signal converter is connected with measuring probe (1);
It is as follows that non magnetic drill collar magnetic field gradient testing arrangement described in utilization carries out testing procedure:
First, the stone that particle diameter after employing cement, filtration is the thick yellow sand of 0.6-0.8mm, particle diameter is less than 8mm and water lay the ground of test site by the weight ratio mixing of 1:2:4:0.5, two-orbit selects thickness to be the bakelite plate material of the electric insulation of 30mm, be that two-orbit anchors on ground by the copper coin of 3mm and fastener with thickness, place dolly, measuring probe is mounted in cylinder shape sensor protective cover, non magnetic drill collar is fixed on dolly, by cylinder shape sensor protective cover, put into non magnetic drill collar endoporus, secondly, dolly is driven at the uniform velocity to move with the speed of 1 m/min by hoist engine, measuring probe keeps motionless, move with the relative velocity of 1 m/min with drill collar, measuring probe measures the electromagnetic intensity value transmit of 100mm apart to magnetic field intensity signal converter by along non magnetic drill collar endoporus, converter is by signal transacting, computer record device is delivered to through connection, in computer record device, utilize VB software to set up with drill collar length as transverse axis, drill collar magnetic field gradient Δ B value is the coordinate system of the longitudinal axis, using ± 0.05 μ T as bound on coordinate system, computer record device record measuring probe measures any some magnetic induction intensity value at a distance of 100mm along endoporus, using the difference of 2 magnetic induction intensity values as magnetic field gradient Δ B value, thus draw the change curve of whole non magnetic drill collar magnetic field gradient, magnetic field gradient curve is between ± 0.05 μ T is as bound, namely this drill collar magnetic field gradient qualified is judged, as curve exceeds bound, namely judge that this drill collar magnetic field gradient index is defective, and determine defective district.
2. a kind of non magnetic drill collar magnetic field gradient method of testing according to claim 1, is characterized in that: described measuring probe forms at a distance of the measurement of magnetic field sensor of 100mm by by two cover straight lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210327924.3A CN102818999B (en) | 2012-09-07 | 2012-09-07 | Magnetic field gradient testing device and method of non-magnetic drill collar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210327924.3A CN102818999B (en) | 2012-09-07 | 2012-09-07 | Magnetic field gradient testing device and method of non-magnetic drill collar |
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| Publication Number | Publication Date |
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| CN102818999A CN102818999A (en) | 2012-12-12 |
| CN102818999B true CN102818999B (en) | 2015-03-25 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104502869B (en) * | 2014-12-08 | 2017-08-25 | 中原特钢股份有限公司 | A kind of solid nonmagnetic steel base magnetic field performance testing device and method |
| CN110515018A (en) * | 2019-09-25 | 2019-11-29 | 河南中原特钢装备制造有限公司 | A kind of measurement method of no magnetic centralizer relative permeability |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201546638U (en) * | 2009-11-30 | 2010-08-11 | 中原特钢股份有限公司 | Novel drill collar used for oil field drilling |
| CN202794485U (en) * | 2012-09-07 | 2013-03-13 | 中原特钢股份有限公司 | Non-magnetic drill collar magnetic field gradient testing device |
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- 2012-09-07 CN CN201210327924.3A patent/CN102818999B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201546638U (en) * | 2009-11-30 | 2010-08-11 | 中原特钢股份有限公司 | Novel drill collar used for oil field drilling |
| CN202794485U (en) * | 2012-09-07 | 2013-03-13 | 中原特钢股份有限公司 | Non-magnetic drill collar magnetic field gradient testing device |
Non-Patent Citations (1)
| Title |
|---|
| 国家发展和改革委员会.《中华人名共和国石油天然气行业标准-钻铤》.《中华人名共和国石油天然气行业标准-钻铤》.2007,1-20. * |
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Effective date of registration: 20180808 Address after: 459000 531 Industrial Park, Tiger Hill Industrial Cluster, Jiyuan City, Jiaozuo, Henan Patentee after: Henan Zhongyuan special steel equipment manufacturing Co., Ltd. Address before: 459000 Xiao Zhai, Jiyuan Town, Jiyuan City, Henan Patentee before: Zhongyuan Special Steel Co., Ltd. |