CN201548521U - Microcrack field magnetic memory testing device for drill pipe - Google Patents

Microcrack field magnetic memory testing device for drill pipe Download PDF

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Publication number
CN201548521U
CN201548521U CN2009202471333U CN200920247133U CN201548521U CN 201548521 U CN201548521 U CN 201548521U CN 2009202471333 U CN2009202471333 U CN 2009202471333U CN 200920247133 U CN200920247133 U CN 200920247133U CN 201548521 U CN201548521 U CN 201548521U
Authority
CN
China
Prior art keywords
magnetic memory
drill pipe
frame
detection ring
microcrack
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2009202471333U
Other languages
Chinese (zh)
Inventor
宋林松
曹式敬
李先兵
陈家福
肖建业
李军伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Oilfield Services Ltd
China National Offshore Oil Corp CNOOC
Original Assignee
China Oilfield Services Ltd
China National Offshore Oil Corp CNOOC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Oilfield Services Ltd, China National Offshore Oil Corp CNOOC filed Critical China Oilfield Services Ltd
Priority to CN2009202471333U priority Critical patent/CN201548521U/en
Application granted granted Critical
Publication of CN201548521U publication Critical patent/CN201548521U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a microcrack field magnetic memory testing device for a drill pipe, comprising a frame and a testing ring which can be sheathed on the drill pipe, wherein the testing ring is arranged on the frame and is provided with a magnetic memory sensor for testing the drill pipe. The frame is fixed on a drill stand, and a center line coincides with the center of a well-head. By the magnetic memory sensor installed on the testing ring, the defects of the drill pipe can be tested first in the process of pulling out of hole or running in hole. With simple structure, the microcrack field magnetic memory testing device for the drill pipe does not need power supporting.

Description

The on-the-spot magnetic memory detection device of a kind of drill rod micro-crack
Technical field
The on-the-spot the cannot-harm-detection device of a kind of petroleum drilling drilling rod of the utility model, the on-the-spot magnetic memory detection device of particularly a kind of drill rod micro-crack.
Background technology
It is a kind of novel lossless detection method that metal magnetic memory detects.Be in the effect that ground magnetic environment iron workpiece down is subjected to operating load, its inner magnetic domain tissue orientation and irreversible orientation that can have magnetostriction character, and in the ground magnetic environment, show as the area of stress concentration local magnetic anomaly, the variation of formation stray field.Whether the variation of this magnetic state still can keep after operating load disappears, therefore can exist stress to concentrate and other defect by the preliminary affirmation of magnetic signal that detects metal construction.
Drilling rod is to implement the essential instrument of drilling prospection operation, and boring every mouthful of well needs a large amount of drilling rods.Drilling rod need bear load such as tension and compression bending in operation process, be subjected to the grinding of the corrosion of drilling fluid and erosion, formation rock simultaneously, so is easy to produce stress on the drilling rod and concentrates, even forms micro-crack.And in case in spite of wound drilling rod go into the well, gently then need pull out of hole and change drilling tool, the waste rig time; Heavy then drilling tool fracture, the drilling tool well that falls takes place, may cause more serious drilling failure thus.
The Dynamic Non-Destruction Measurement of using always generally is difficult to find the concentrated and micro-crack of this stress at present, and implements technician and the equipment that Non-Destructive Testing need be special, is difficult to the general implementation operation at the drilling operation scene.
Utilize the magnetic memory to detect the early detection that principle is carried out the drilling rod damage, be proved to be a kind of feasible technology.But magnetic memory detector also only is used for the drilling rod check in the workshop at present.Provide a kind of testing tool that can on horizontal drilling rod, creep as a kind of portable drill rod magnetic memory detector (application number is 200810238968.2) with handle; A kind of magnetic memory detection device of oil drill rod micro-crack (application number is 200910082920.1) provides testing tool double-drive device, that can slide on drilling rod and horizontal stand.There is following problem in these detecting instruments when situ of drilling well uses: when drilling rod is placed on 2-3 the support in place, because instrument can not slip over support, need manually disassemble detecting instrument, makes it to stride across support, both lost time like this, detection efficiency is low, also exists 3-4 to detect blind spot.
The utility model content
The utility model can not be used for the problem that situ of drilling well uses at existing drill rod magnetic memory instrument, has proposed the on-the-spot magnetic memory detection device of a kind of drill rod micro-crack, can detect the defective that exists in the drilling rod in the process of making a trip in real time.
In order to address the above problem, the on-the-spot magnetic memory detection device of a kind of drill rod micro-crack that the utility model provides comprises: frame and the detection ring that can be sleeved on the drilling rod, detection ring is arranged on the frame, and described detection ring is provided with and is used for magnetic memory sensor that described drilling rod is detected.
Preferably, described detection ring comprises two semi-rings, on the described frame retractor device is set, and described detection ring radially opens by this retractor device or be closed.
Preferably, tell and also be provided with two groups of elastic rods up and down and the roller that keeps described detection ring and described drilling rod concentric on the frame, on the described elastic rod position transducer is housed.
The utility model frame is fixed on the rig floor, and center line overlaps with the well head center, by be installed on the detection ring the magnetic memory sensor just can pull out of hole or going down process in the very first time detect the drilling rod defective; Simple in structure, do not need the power support.
Description of drawings
Fig. 1 is a structural front view of the present utility model;
Fig. 2 a is the vertical view of Fig. 1; View when Fig. 2 b opens for Fig. 2 a detection ring.
Embodiment
Following conjunction with figs. and specific embodiment elaborate to embodiment of the present utility model.
Shown in Fig. 1,2a, 2b, the utility model magnetic memory detection device comprises: frame 1 and detection ring 2, detection ring 2 is two semi-rings, can be sleeved on the drilling rod.Frame 1 is provided with and is used to control the retractor device 3 that two semi-rings move radially unlatching.Certainly, also can be fan-shapedly to open or laterally move, so that two semi-rings are opened.Two semi-rings are provided with and are used for sensor 4 that drilling rod is detected.Two groups of elastic rods 7 and roller 8 also are set on the frame 1 up and down, are used to keep detection ring 2 and drilling tool concentric; When roller 8 touches drilling tool thickening band and tool joint 5, send electric signal or hydraulic pressure signal to controller, retractor device is opened, also can open retractor device by driller's operation.
During use, the utility model is fixed on the rig floor 6, center line overlaps with the well head center, again by be installed on the detection ring 2 magnetic memory sensor 4 just can pull out of hole or going down process in the very first time detect the drilling rod defective.
In sum; it below only is preferred embodiment of the present utility model; be not to be used to limit protection domain of the present utility model; therefore; all any modifications of within spirit of the present utility model and principle, being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims (3)

1. the on-the-spot magnetic memory detection device of a drill rod micro-crack is characterized in that, comprising: frame and can be sleeved on detection ring on the drilling rod, and detection ring is arranged on the frame, and described detection ring is provided with and is used for magnetic memory sensor that described drilling rod is detected.
2. device as claimed in claim 1 is characterized in that, described detection ring comprises two semi-rings, on the described frame retractor device is set, and described detection ring radially opens by this retractor device or be closed.
3. device as claimed in claim 1 or 2 is characterized in that, also is provided with the two groups of elastic rods up and down and the roller that keep described detection ring and described drilling rod concentric on the described frame, on the described elastic rod position transducer is housed.
CN2009202471333U 2009-11-18 2009-11-18 Microcrack field magnetic memory testing device for drill pipe Expired - Fee Related CN201548521U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009202471333U CN201548521U (en) 2009-11-18 2009-11-18 Microcrack field magnetic memory testing device for drill pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009202471333U CN201548521U (en) 2009-11-18 2009-11-18 Microcrack field magnetic memory testing device for drill pipe

Publications (1)

Publication Number Publication Date
CN201548521U true CN201548521U (en) 2010-08-11

Family

ID=42603697

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009202471333U Expired - Fee Related CN201548521U (en) 2009-11-18 2009-11-18 Microcrack field magnetic memory testing device for drill pipe

Country Status (1)

Country Link
CN (1) CN201548521U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104502462A (en) * 2014-12-26 2015-04-08 四川兴天源材料检测技术有限公司 Ultrasonic wave online inspection and flaw detection equipment for thickening region and friction weld joint of drill stem
CN105675714A (en) * 2016-04-14 2016-06-15 长江大学 Drill stem damage detecting device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104502462A (en) * 2014-12-26 2015-04-08 四川兴天源材料检测技术有限公司 Ultrasonic wave online inspection and flaw detection equipment for thickening region and friction weld joint of drill stem
CN104502462B (en) * 2014-12-26 2017-06-16 四川曜诚无损检测技术有限公司 For drill pipe thickening area and the ultrasonic wave on-line checking defect-detecting equipment of friction welding seam
CN105675714A (en) * 2016-04-14 2016-06-15 长江大学 Drill stem damage detecting device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100811

Termination date: 20171118