CN202196038U - High-resolution electromagnetic flaw detector and control system - Google Patents
High-resolution electromagnetic flaw detector and control system Download PDFInfo
- Publication number
- CN202196038U CN202196038U CN2011202937773U CN201120293777U CN202196038U CN 202196038 U CN202196038 U CN 202196038U CN 2011202937773 U CN2011202937773 U CN 2011202937773U CN 201120293777 U CN201120293777 U CN 201120293777U CN 202196038 U CN202196038 U CN 202196038U
- Authority
- CN
- China
- Prior art keywords
- probe
- flaw detection
- resolving power
- control system
- high resolving
- 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 - Lifetime
Links
Images
Abstract
The utility model relates to a high-resolution electromagnetic flaw detector used for logging in oil field production and a control system. The high-resolution electromagnetic flaw detector comprises a flaw detection pup joint, and the flaw detection pup joint comprises a flaw detection main body, a longitudinal macro-axis probe, a longitudinal minor-axis probe, a first transverse probe and a second transverse probe, wherein the longitudinal macro-axis probe is used for calculating the wall thickness and identifying single-layer and multi-layer defects, as well as longitudinal cracks; the longitudinal minor-axis probe is used for identifying single-layer and double-layer defects, as well as longitudinal cracks; the first transverse probe and the second transverse probe are used for identifying single-layer and double-layer transverse crack defects; the longitudinal minor-axis probe, the second transverse probe, the first transverse probe and the longitudinal macro-axis probe are sequentially arranged on the flaw detection pup joint main body; and the first transverse probe and the second transverse probe are mutually perpendicular. The utility model provides the high-resolution electromagnetic flaw detector and the control system, which have the advantages of wide flaw detection range, strong casing damage and deformation identification capability, compact structure and flexibility in assembly.
Description
Technical field
The utility model belongs to Exploration Domain, relates to a kind of Casing Detection instrument, relates in particular to a kind of high resolving power magnetic crack detector and control system that is applied to field produces well logging usefulness.
Background technology
At present, many maturing field casing damage wells are and increase trend year by year, and to the regionality development, this will have a strong impact on the output in oil field.Utilize Electromagnetism Inspection Technique to generally investigate, estimate the degree of injury of sleeve pipe, understanding and prevention cover decrease zonal expansion and in time take measures significant.
It is electricity and the magnetic property that utilizes sleeve pipe under electromagnetic action, to show that electromagnetic method detects, and detects the situation of down-hole casing according to electromagnetic induction principle.Electromagnetic test detects the damaged condition of oil pipe and sleeve pipe in oil pipe, and in sleeve pipe, detects the damaged condition of sleeve pipe and surface string, removes the opex and the time of oil pipe when having saved inspection sleeve pipe situation.Therefore, it can carry out " health check-up " to oil gas, well hole structure, in time finds the deformed damaged situation of hole structure.
Existing magnetic crack detector when logging well separately, can't be confirmed some defectives and degree of injury, so, just press for the well logging of associating multi-finger caliper; Can get up the advantages separately of magnetic crack detector and multi-finger caliper like this, more can be fully the sleeve pipe damaged condition be grasped in detail, thereby reliable, detailed proficiency technical information is provided for the maintenance of on-the-spot well and transformation.In addition, to the degree of impairment of some holes and crack and multilayer sleeve, existing electromagnetic test precision is not enough, and recognition capability is poor, and therefore, these electromagnet defectoscope research and development are just extremely urgent.
The utility model content
In order to solve the above-mentioned technical matters that exists in the background technology, the utility model provides a kind of and has had that inspected area is wide, cover decreases that cover becomes that recognition capability is strong, compact conformation and assemble high resolving power magnetic crack detector and control system flexibly.
The technical solution of the utility model is: the utility model provides a kind of high resolving power magnetic crack detector, comprises the flaw detection pipe nipple, and its special character is: said flaw detection flaw detection pipe nipple comprises:
Flaw detection pipe nipple body;
The vertical major axis probe that is used for calculated wall thickness, identification individual layer and multilayer defective and longitudinal crack;
Be used to discern vertical minor axis probe of individual layer and double-deck defective and longitudinal crack;
Be used to discern first transversal sonde and second transversal sonde of the individual layer and the transverse crack defective of bilayer;
Said vertical minor axis probe, second transversal sonde, first transversal sonde and vertical major axis probe are set in turn on the flaw detection pipe nipple body; Said first transversal sonde and second transversal sonde are vertical each other.
Above-mentioned high resolving power magnetic crack detector also comprises the gamma well temperature pipe nipple that links to each other with the flaw detection pipe nipple; Said gamma well temperature pipe nipple comprises:
Be used for the dark gamma-ray probe in school;
Be used to detect the well temperature probe of the variation in in-hole fluid temperature field.
Above-mentioned high resolving power magnetic crack detector also comprises the rolling wheel centralizer that is arranged at high resolving power magnetic crack detector two ends respectively.
The external diameter of above-mentioned high resolving power magnetic crack detector is 70mm.
A kind of control system that the high resolving power magnetic crack detector is controlled of being used for, its special character is: said control system comprises signals collecting and processing unit, cable transmission unit and signal acquiring unit; Said signal acquiring unit and cable transmission unit insert signals collecting and processing unit respectively.
Above-mentioned signal acquiring unit comprises probe emission driver element and probe received signal processing unit; Said probe emission driver element and probe received signal processing unit insert signals collecting and processing unit respectively.
Above-mentioned control system also comprises gamma correction unit and well temperature unit; Said gamma correction unit and well temperature unit insert signals collecting and processing unit respectively.
Above-mentioned gamma correction unit is a gamma-ray probe; Said well temperature unit is a temperature sensor.
The utility model has the advantages that:
The utility model provides a kind of high resolving power magnetic crack detector, and vertical sonde and horizontal pullover skeleton are big, and winding around is many, and the transmitting probe intensity that generates an electromagnetic field is big, and receiving transducer induced field ability is strong, thereby the defect recognition ability is sharp, and inspected area is wide; Simultaneously, the utility model increases the external diameter of traditional defectoscope, and is nearer apart from casing wall; It is strong to form tube wall eddy current ability, and defect recognition resolution is high, with existing 40 arm well-calipering apparatus consistent size; Can realize seamless link, and need not change pipe nipple that the instrument assembling is simple; The 3rd, the utility model adopts the multifunctional communication circuit, and realization can be logged well separately, also can log well with 40 arm well-calipering apparatus uniting and adjustment, and wide accommodation meets the needs of different users; The 4th, the utility model adopts rolling wheel centralizer respectively at the two ends of existing defectoscope, has improved the carrying instrumental intensity, makes instrument placed in the middle, and it is more smooth to transfer well logging.
Description of drawings
Fig. 1 is the high resolving power magnetic crack detector one-piece construction synoptic diagram that the utility model provides;
Fig. 2 is the schematic block circuit diagram that the utility model adopts;
Wherein:
The last centralizer pipe nipple of 1-; The vertical minor axis C probe of 2-; The horizontal minor axis BB probe of 3-; The horizontal minor axis B probe of 4-; The 5-pipe nipple of detecting a flaw; The vertical major axis A probe of 6-; 7-gamma probe; 8-gamma well temperature pipe nipple; The 9-temp probe; Centralizer pipe nipple under the 10-; 11-signals collecting and processing unit; 12-probe emission driver element; 13-probe received signal processing unit; The 14-gamma correction unit; 15-cable transmission unit; 16-well temperature unit.
Embodiment
The concrete scheme of the utility model is: the instrument external diameter of magnetic crack detector adopts 70mm, and structure is divided into four pipe nipples, comprising upper roller centralizer 1, and bottom roller centralizer 10, flaw detection pipe nipple 5 and gamma well temperature pipe nipple 8.Flaw detection pipe nipple 5 comprises vertical major axis probe, vertically minor axis probe, transversal sonde, gamma-ray probe and well temperature probe.Vertically the major axis probe mainly is used for calculated wall thickness, identification individual layer and multilayer defective and longitudinal crack; Vertically the minor axis probe mainly is used for discerning individual layer and double-deck defective and longitudinal crack.Two transversal sondes are used for discerning the individual layer and double-deck transverse crack defective.It is dark that gamma-ray probe mainly is used for the school; Well temperature probe mainly is used for detecting the variation in in-hole fluid temperature field.
The circuit function unit comprises signals collecting and processing unit 11, cable transmission unit 15, probe emission driver element 12, probe received signal processing unit 13, gamma correction unit 14, well temperature unit 16.Cable transmission unit 15, probe emission driver element 12, probe received signal processing unit 13, gamma correction unit 14 and well temperature unit 16 insert signals collecting and processing unit 11 respectively.
As shown in Figure 1, be the mechanical general assembly drawing of this utility model.This instrument is divided into four pipe nipples: two centralizer pipe nipples up and down, flaw detection pipe nipple, gamma well temperature pipe nipple.Mainly comprise centralizer pipe nipple 1, flaw detection pipe nipple 5, gamma well temperature pipe nipple 8, following centralizer pipe nipple 10.Wherein, flaw detection pipe nipple 5 mainly comprises vertical minor axis C probe 2, laterally minor axis BB probe 3, laterally minor axis B probe 4 and vertical major axis A probe 6; Gamma well temperature pipe nipple 8 mainly comprises gamma probe 7 and temp probe 9.If will use the electromagnetic test well logging to unite well logging, then need not to articulate gamma well temperature pipe nipple 8 with 40 arm well-calipering apparatuss; Otherwise, should articulate gamma well temperature pipe nipple 8.Can connect flexibly like this, easy for installation.
As shown in Figure 2, be the schematic block circuit diagram of this utility model.Its course of work: signals collecting and processing unit, output control corresponding sequential is controlled each transmitting probe driver element; Make corresponding probe generation electromagnetic induction phenomenon, thereby on the casing wall of different layers, form eddy current, the probe received signal processing unit induces electric current; Produce and the proportional voltage magnitude of wall thickness value; And, offer signals collecting and processing unit, simultaneously through after handling; If load gamma well temperature pipe nipple 8 among Fig. 1, then gamma value and well temperature value also offer signals collecting and processing unit goes processing; Through processing signals, through the cable delivery unit, send to the ground digital control system and go interpretation process at last.Especially point out; This utility model is different the delivery unit of cable delivery unit and existing magnetic crack detector: if 40 arm well-calipering apparatuss articulate electromagnetic test; Can send order after then 40 arm well-calipering apparatuss are started working, can adopt the communications protocol form of 40 arm well-calipering apparatus requirements to send packet according to this order electromagnetic test, if do not articulate 40 arm well-calipering apparatuss; Well logging separately; Then wait for,, then send packet according to the own communications protocol of electromagnetic test if overtime according to fixing delay time.
Claims (8)
1. a high resolving power magnetic crack detector comprises the flaw detection pipe nipple, it is characterized in that: said flaw detection flaw detection pipe nipple comprises:
Flaw detection pipe nipple body;
The vertical major axis probe that is used for calculated wall thickness, identification individual layer and multilayer defective and longitudinal crack;
Be used to discern vertical minor axis probe of individual layer and double-deck defective and longitudinal crack;
Be used to discern first transversal sonde and second transversal sonde of the individual layer and the transverse crack defective of bilayer;
Said vertical minor axis probe, second transversal sonde, first transversal sonde and vertical major axis probe are set in turn on the flaw detection pipe nipple body; Said first transversal sonde and second transversal sonde are vertical each other.
2. high resolving power magnetic crack detector according to claim 1 is characterized in that: said high resolving power magnetic crack detector also comprises the gamma well temperature pipe nipple that links to each other with the flaw detection pipe nipple; Said gamma well temperature pipe nipple comprises:
Be used for the dark gamma-ray probe in school;
Be used to detect the well temperature probe of the variation in in-hole fluid temperature field.
3. high resolving power magnetic crack detector according to claim 1 and 2 is characterized in that: said high resolving power magnetic crack detector also comprises the rolling wheel centralizer that is arranged at high resolving power magnetic crack detector two ends respectively.
4. high resolving power magnetic crack detector according to claim 3 is characterized in that: the external diameter of said high resolving power magnetic crack detector is 70mm.
5. one kind is used for control system that the high resolving power magnetic crack detector of the arbitrary claim of claim 1-4 is controlled, and it is characterized in that: said control system comprises signals collecting and processing unit, cable transmission unit and signal acquiring unit; Said signal acquiring unit and cable transmission unit insert signals collecting and processing unit respectively.
6. control system according to claim 5 is characterized in that: said signal acquiring unit comprises probe emission driver element and probe received signal processing unit; Said probe emission driver element and probe received signal processing unit insert signals collecting and processing unit respectively.
7. according to claim 5 or 6 described control system, it is characterized in that: said control system also comprises gamma correction unit and well temperature unit; Said gamma correction unit and well temperature unit insert signals collecting and processing unit respectively.
8. control system according to claim 7 is characterized in that: said gamma correction unit is a gamma-ray probe; Said well temperature unit is a temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202937773U CN202196038U (en) | 2011-08-12 | 2011-08-12 | High-resolution electromagnetic flaw detector and control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202937773U CN202196038U (en) | 2011-08-12 | 2011-08-12 | High-resolution electromagnetic flaw detector and control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202196038U true CN202196038U (en) | 2012-04-18 |
Family
ID=45950941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202937773U Expired - Lifetime CN202196038U (en) | 2011-08-12 | 2011-08-12 | High-resolution electromagnetic flaw detector and control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202196038U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818838A (en) * | 2012-08-15 | 2012-12-12 | 中国科学院研究生院 | Electromagnetic torque change based method for nondestructive detection of defect in conductor |
| CN106194158A (en) * | 2016-09-28 | 2016-12-07 | 北京捷威思特科技有限公司 | The comprehensive fault detection system of casing tube |
| CN114216840A (en) * | 2022-01-12 | 2022-03-22 | 中国科学院武汉岩土力学研究所 | Distributed real-time monitoring system for casing corrosion |
-
2011
- 2011-08-12 CN CN2011202937773U patent/CN202196038U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818838A (en) * | 2012-08-15 | 2012-12-12 | 中国科学院研究生院 | Electromagnetic torque change based method for nondestructive detection of defect in conductor |
| CN102818838B (en) * | 2012-08-15 | 2015-03-04 | 中国科学院研究生院 | Electromagnetic torque change based method for nondestructive detection of defect in conductor |
| CN106194158A (en) * | 2016-09-28 | 2016-12-07 | 北京捷威思特科技有限公司 | The comprehensive fault detection system of casing tube |
| CN114216840A (en) * | 2022-01-12 | 2022-03-22 | 中国科学院武汉岩土力学研究所 | Distributed real-time monitoring system for casing corrosion |
| CN114216840B (en) * | 2022-01-12 | 2024-04-23 | 中国科学院武汉岩土力学研究所 | Distributed casing corrosion real-time monitoring system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9778390B2 (en) | Electromagnetic imaging for structural inspection | |
| CN106596715B (en) | Array type transient electromagnetic method multilayer tubular column damage detection system and method | |
| US20070222438A1 (en) | Electromagnetic flaw detection apparatus for inspection of a tubular | |
| CN202196038U (en) | High-resolution electromagnetic flaw detector and control system | |
| US20180209265A1 (en) | Inspection of Wellbore Conduits using a Distributed Sensor System | |
| CN101358948A (en) | Device for detecting metal body of underground gas storage well | |
| CN207248084U (en) | A kind of detection device for communication pipe interior lights slippery | |
| CN202101971U (en) | Electromagnetic flaw detector | |
| CN103114847B (en) | Oil field underground liquid level detection method and device | |
| CN103983666B (en) | A kind of without ground wire non-conductive coating layer electric spark detection apparatus and detection method thereof | |
| CN108226278B (en) | Chain alternating current electromagnetic field detection probe | |
| CN201540280U (en) | Device for online detection of pumping rod of exterior penetration type eddy current sensor | |
| CN202421128U (en) | High-resolution electromagnetic flaw inspection combination instrument | |
| CN206399896U (en) | A kind of array multi -components underground transient electromagnetic fault detection system | |
| RU2382357C1 (en) | Well magnetic introscope | |
| CN201687469U (en) | Multifunctional underground electromagnetic flaw detector | |
| CN105239995A (en) | Three-electrode potential difference type detection method for inner coating of tubing and casing in downhole | |
| Song et al. | An inspection robot for boiler tube using magnetic flux leakage and ultrasonic methods | |
| CN202582659U (en) | Detection device for oil-water interface of crude oil settlement tank in oilfield combination station | |
| CN204851239U (en) | Position gamma well logging device | |
| CN101446568A (en) | Steel pipe cross magnetization leakage magnetic detection device | |
| CN203432940U (en) | Multi-sector scanning type electromagnetic flaw detector | |
| CN210572115U (en) | Casing damage detection device and system based on transient electromagnetic emission array | |
| CN101994508A (en) | Underground electromagnetic detector | |
| CN108612522B (en) | Casing pipe technical condition detection device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120418 |