CN201546650U - Sensor retracting/releasing device on casing stress magnetic memory detector - Google Patents
Sensor retracting/releasing device on casing stress magnetic memory detector Download PDFInfo
- Publication number
- CN201546650U CN201546650U CN200920279338XU CN200920279338U CN201546650U CN 201546650 U CN201546650 U CN 201546650U CN 200920279338X U CN200920279338X U CN 200920279338XU CN 200920279338 U CN200920279338 U CN 200920279338U CN 201546650 U CN201546650 U CN 201546650U
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- pole plate
- magnetic memory
- main tube
- stage clip
- sensor
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Abstract
The utility model discloses a sensor retracting/releasing device on a casing stress magnetic memory detector, which mainly solves the problem of poor retracting/releasing effect and safe reliability for the sensor retracting/releasing device on the existing magnetic memory detector. The sensor retracting/releasing device on the casing stress magnetic memory detector is characterized in that: a sensor (3) is arranged in a groove in a pole plate bracket (2) on a main tube (1); a pole plate large support arm (4) is hinged between the upper end of the pole plate bracket (2) and the main tube (1); the lower end of the pole plate bracket (2) is respectively hinged with a sliding rod (6) and a fixed seat (7) in the main tube (1) through a connecting rod (5); the sliding rod (6) is connected to a sliding seat (8) in a sliding way; a pole plate pressure spring (10) is arranged between a pressure spring end cover (9) at the lower end of the sliding seat (8) and the sliding seat (2); the lower end of the pressure spring end cover (9) is connected with a roll-ball screw rod (11); the lower end of the roll-ball screw rod (11) is connected with a motor (12) fixed in the main tube (1). The sensor retracting/releasing device on the casing stress magnetic memory detector has characteristics of good retracting/releasing effect and good safe reliability.
Description
Technical field:
The utility model relates to down-hole, oilfield test field metal sleeve metal magnetic memory method logger upper sensor used mechanical draw off gear, especially casing stress magnetic memory detector upper sensor draw off gear.
Background technology:
Along with continually developing of oil field, casing damaged well quantity increases just year by year, and cover damage degree is more and more serious, has badly influenced the recent development and the lasting stable yields in oil field; The cover of present stage decreases detection technique and only limits to the casing damage that has taken place is judged, the cover that but all can not carry out in advance decreases prediction; Metal magnetic memory method logger can detect the suffered stress state of down-hole metal sleeve before cover damage incident, and can indicate cover damage danger classes, thereby instructs the formulation and the adjustment of development plan; Mechanical transmission structure is the key technology in the metal magnetic memory testing instrument, and can the reasonability of its design and reliability directly affect this technology and apply in the oil field.Because the metal magnetic memory response signal is very faint, magneto-dependent sensor must be close to the metal sleeve inwall, reduces interference of noise simultaneously as far as possible.The mechanical transmission structure of metal magnetic memory testing instrument at first must reliably be received in instrument is gone into the well process and be close together, open gage beam during down to the measuring well section, make sensor be close to internal surface of sleeve pipe, measure and finish reliably to tighten up gage beam later that instrument could propose well head.In metal magnetic memory testing instrument each several part composition system, mechanical transmission structure is the core component in this instrument mechanical realization.And magnetic memory detector upper sensor draw off gear is because reasons in structure exists the problem of folding and unfolding effect and security reliability difference at present, and influence detects effect.
The utility model content:
In order to solve the problem of existing magnetic memory detector upper sensor draw off gear folding and unfolding effect and security reliability difference, the utility model provides a kind of casing stress magnetic memory detector upper sensor draw off gear, and this casing stress magnetic memory detector upper sensor draw off gear has folding and unfolding effect and the good characteristics of security reliability.
The technical solution of the utility model is: this casing stress magnetic memory detector upper sensor draw off gear comprises the main tube that the circuit tube lower end connects, main barrel upper shed is built-in with the pole plate carriage, pole plate carriage groove is built-in with sensor, hinge has the big support arm of pole plate between pole plate carriage upper end and main tube, slide bar that pole plate carriage lower end is interior with leading tube respectively by connecting rod and holder be hinge mutually, slide bar is slidingly connected on the slide, there is the stage clip end cap that slides the slide lower end in main tube, be provided with the pole plate stage clip between slide and the stage clip end cap, stage clip end cap lower end is connected with ball screw, and the ball screw lower end motor shaft interior with being fixed on main tube is connected.
The utlity model has following beneficial effect: this casing stress magnetic memory detector upper sensor draw off gear is owing to adopt motor to be connected with the ball screw lower end, ball screw is connected with the stage clip end cap, the stage clip end cap contacts with slide bar, big support arm of pole plate and slide bar, connecting rod and pole plate carriage be the structure of hinge mutually, utilize the driven by motor ball screw to promote successively or spur the stage clip end cap, slide bar and connecting rod are put or interior receipts the pole plate carriage outward, being implemented in this casing stress magnetic memory detector upper sensor draw off gear goes into the well must reliably receive in the process and is close together, open gage beam during down to the measuring well section, make sensor be close to the function of internal surface of sleeve pipe, measure and finish must reliably tighten up gage beam later, instrument could propose well head.Thereby strengthened folding and unfolding effect and safe effect, and improved certainty of measurement, simple to operate, this casing stress magnetic memory detector upper sensor draw off gear has folding and unfolding effect and the good characteristics of security reliability thus.
Description of drawings:
Accompanying drawing 1 is the utility model structural representation.
1-master's tube among the figure, 2-pole plate carriage, 3-sensor, the big support arm of 4-pole plate, 5-connecting rod, 6-slide bar, 7-holder, 8-slide, 9-stage clip end cap, 10-pole plate stage clip, 11-ball screw, 12-motor.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, this casing stress magnetic memory detector upper sensor draw off gear comprises the main tube 1 that the circuit tube lower end connects, the 1 wall upper shed of main tube is built-in with pole plate carriage 2, pole plate carriage 2 grooves are built-in with sensor 3, be equipped with holder 7 from top to bottom successively in the main tube 1, slide 8, slide bar 6, pole plate stage clip 10, stage clip end cap 9, ball screw 11 and motor 12, hinge has the big support arm 4 of pole plate between pole plate carriage 2 upper ends and main tube 1 wall, pole plate carriage 2 lower ends by connecting rod 5 respectively with slide bar 6 and holder 7 hinge mutually, by the hinge of the big support arm 4 of pole plate and 5 pairs of pole plate carriages 2 of connecting rod, realize that pole plate carriage 2 can the outer function of putting of interior receipts.Slide bar 6 is slidingly connected on the slide 8, slide 8 is fixed in the main tube 1, slide bar 6 can be slided on slide 8, there is the stage clip end cap 9 of slip slide 8 lower ends, stage clip end cap 9 contacts with slide bar 6, thereby promote or release slide bar 6, be with pole plate stage clip 10 on the slide bar 6 between slide 8 and the stage clip end cap 9, be connected with axle between slide 8 and the stage clip end cap 9, stage clip end cap 9 in axle lower end stage holder, and axle lower end, lower end is connected with ball screw 11, and the ball bearing of ball screw 11 is fixed in the main tube 1, ball screw 11 lower ends are connected with 12 in motor, and motor 12 is fixed in the main tube 1.
The concrete operating principle in assembling back is as follows.Under this casing stress magnetic memory detector upper sensor draw off gear normal condition before following well measurements pole plate carriage 7 be and receive by state.Open pole plate carriage 2 processes during measurement: motor 12 is for positive electricity, motor 12 forwards turn clockwise, 12 in motor drives ball screw 11 forwards and turns clockwise, ball screw 11 promotes stage clip end cap 9 and moves up, stage clip end cap 9 promotes pole plate stage clip 10 and moves up, pole plate stage clip 10 promotes slide bar 6 and moves up, slide bar 6 promotes connecting rod 5 and moves up, connecting rod 5 promotes pole plate carriage 2 and outwards puts exhibition, finally make pole plate carriage 2 outwards open, pole plate carriage 2 just makes that slowly sensor 3 can tightly abut on the casing wall like this.Measurement finishes and draws pole plate carriage 2 processes in: motor 12 is for negative electricity, motor 12 oppositely is rotated counterclockwise, 12 in motor drives ball screw 11 and oppositely is rotated counterclockwise, pulling ball screw 11 moves down, ball screw 11 pulling stage clip end caps 9 move down, the anti-downwards stage clip end cap 9 that promotes of pole plate stage clip 10, stage clip end cap 9 and pole plate stage clip 10 pulling slide bars 6 move down, slide bar 6 pulling connecting rods 5 move down, connecting rod 5 pulling pole plate carriages 2 are inwardly regained, and finally make pole plate carriage 2 inwardly slowly receive and lean on.
After this casing stress magnetic memory detector upper sensor draw off gear is succeeded in developing, finished 10 wells time field trial by in September, 2009, indoor folding and unfolding experiment 200 times, heatproof index: 150 ℃, withstand voltage 60MPa, prove that this casing stress magnetic memory detector upper sensor draw off gear is reasonable in design, reliable operation has the good characteristics of folding and unfolding effect and security reliability.
Claims (1)
1. casing stress magnetic memory detector upper sensor draw off gear, comprise the main tube (1) that the circuit tube lower end connects, it is characterized in that: (1) the wall upper shed of main tube is built-in with pole plate carriage (2), pole plate carriage (2) groove is built-in with sensor (3), hinge has the big support arm of pole plate (4) between pole plate carriage (2) upper end and main tube (1), slide bar (6) that pole plate carriage (2) lower end is interior with leading tube (1) respectively by connecting rod (5) and holder (7) be hinge mutually, slide bar (6) is slidingly connected on the slide (8), there is the stage clip end cap (9) that slides slide (8) lower end in main tube (1), be provided with pole plate stage clip (10) between slide (8) and the stage clip end cap (9), stage clip end cap (9) lower end is connected with ball screw (11), and ball screw (11) lower end motor (12) axle interior with being fixed on main tube (1) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920279338XU CN201546650U (en) | 2009-11-17 | 2009-11-17 | Sensor retracting/releasing device on casing stress magnetic memory detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920279338XU CN201546650U (en) | 2009-11-17 | 2009-11-17 | Sensor retracting/releasing device on casing stress magnetic memory detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201546650U true CN201546650U (en) | 2010-08-11 |
Family
ID=42601824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920279338XU Expired - Fee Related CN201546650U (en) | 2009-11-17 | 2009-11-17 | Sensor retracting/releasing device on casing stress magnetic memory detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201546650U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518422A (en) * | 2011-12-30 | 2012-06-27 | 中国石油天然气股份有限公司 | Method for detecting and identifying current stress state of downhole casing pipe of oil field |
-
2009
- 2009-11-17 CN CN200920279338XU patent/CN201546650U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518422A (en) * | 2011-12-30 | 2012-06-27 | 中国石油天然气股份有限公司 | Method for detecting and identifying current stress state of downhole casing pipe of oil field |
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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: 20181117 |