CN201568043U - Underground multifunctional corrosion rate detection device - Google Patents
Underground multifunctional corrosion rate detection device Download PDFInfo
- Publication number
- CN201568043U CN201568043U CN2009200332849U CN200920033284U CN201568043U CN 201568043 U CN201568043 U CN 201568043U CN 2009200332849 U CN2009200332849 U CN 2009200332849U CN 200920033284 U CN200920033284 U CN 200920033284U CN 201568043 U CN201568043 U CN 201568043U
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- corrosion rate
- checkout gear
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Abstract
The utility model belongs to detection equipment used on oilfields, and particularly relates to an underground multifunctional corrosion rate detection device. The underground multifunctional corrosion rate detection device is characterized in that a rope socket and a lower cone are respectively arranged at two ends of a columnar body; a battery pack protection sleeve is connected with the rope socket through threads, and required potential provided for battery sleeve set and battery encapsulation is in the battery pack protection sleeve; adjacent to the right end of the battery pack protection sleeve, a circuit board fixed bracket is fixed in the middle position of the columnar body through a gasket, a spring gasket and a slotting panhead screw; a circuit protection tube is arranged between the power supply input terminal of the circuit board fixed bracket and the battery sleeve set and is fixed in a socket B1 through an O type seal ring and a jackscrew; one end of each of double reversed U-shaped lower joints is connected with the lower cone, and the other ends thereof are connected with a pressure joint; the pressure joint is connected with a pressure sensor, a temperature sensor and the pressure sensor are positioned to be fixed in the position on the left side adjacent to the double reverse U-shaped lower joints, and the corrosion detection device is fixed in the middle of the double reverse U-shaped lower joints. The underground multifunctional corrosion rate detection device is used for detecting the temperature, pressure and corrosion rate at the bottom of an oil well, thereby achieving time and labor conservation.
Description
Technical field
The utility model belongs to a kind of oil field checkout equipment, especially for the device that detects oil well shaft bottom corrosion rate, is a kind of multi-functional corrosion rate checkout gear in down-hole that can measure bottom hole temperature (BHT), pressure simultaneously exactly.
Background technology
Need have gained some understanding to the corrosion situation of down-hole in the scene, oil field, particularly the corrosion rate to underground equipment detects.
The rate-measuring device of oil field erosion at present mainly contains dual mode, and a kind of mode adopts fixed down-hole lacing film device to corrode detection.This down-hole lacing film device is actually a kind of tubing nipple, is installed in by screw thread and corrodes detection on the oil pipe.The lacing film device with the oil pipe G.I.H, takes out with oil pipe during following subjob when playing the lower tubular column operation again, by observing the corrosion situation of inside and outside lacing film, detects the corrosion condition of inside and outside wall of oil pipe and internal surface of sleeve pipe.Because this lacing film device must be lowered to, trip out with oil pipe, make that its task difficulty is big, the time is long, can not carry out the corrosion detection of oil, sleeve pipe at any time.
Another kind of mode is to adopt electromagnetic test method and well logging footpath method.Yet the predominant use of electromagnetic test method and well logging footpath method is not the corrosion situation that is used to detect oil pipe, but is used to detect the distortion situation of oil pipe, and the electromagnetic test method is that the qualitative detection oil pipe is because the distortion situation that corrosion causes can't detect corrosion rate.
Summary of the invention
The purpose of this utility model provides a kind of easy to use reducing production costs, and does not influence the multi-functional corrosion rate checkout gear in down-hole of work again.
The technical solution of the utility model is achieved in that the multi-functional corrosion rate checkout gear in down-hole, it is characterized in that: rope socket and lower cone are respectively at the two ends of column; Battery pack casing and rope socket have battery tube group and cell package that required voltage is provided by being threaded in the battery pack casing; Right-hand member near the battery pack casing, the column centre position is fixed the wiring board fixed mount by packing ring, spring washer, slotted pan head screw, between the power input of wiring board fixed mount and the battery tube group circuit protection pipe is arranged, the circuit protection pipe is fixed in the socket, fix by O RunddichtringO and jackscrew, two inverted U lower contact one ends connect lower cone, and the other end connects compression fittings; Compression fittings connects pressure sensor, by pressure ring, pad, O RunddichtringO temperature pick up and pressure sensor is positioned the leftward position that is fixed near two inverted U lower contacts, and the corrosion checkout gear then is fixed in the middle of two inverted U lower contacts.
Thin-walled tubulose sample in the described corrosion checkout gear is porose.
Described corrosion checkout gear is by the resistance R that is connected in series, R0, RX, R1, single-chip microcomputer EM78P458, AT24C128 and the clock circuit HT1380 of two-way difference channel, band A/D converter constitute, the both end voltage of resistance R 0 and RX is electrically connected with the two-way difference channel input that TL062 forms respectively, two-way difference channel output is electrically connected with A/D conversion mouthful P60 and the P61 of EM78P458 respectively, and EM78P458 is electrically connected with AT24C128 and clock circuit HT1380 respectively.
Described R0 and RX are made of thin-walled tubulose sample and compensation tubulose sample, and the material structure of R0 and RX is identical.
Between described thin-walled tubulose sample and the compensation tubulose sample by left insulating layer and right insulating layer and two ends metal-insulator.
There is gasket coating on described R0 surface.
The material of described R0 and RX can be laminar, thread, tubulose.
The utility model has the advantages that: owing in the checkout gear of oil well shaft bottom, directly be fixed with corrosion detection circuitry, the signal of corrosion detection circuitry obtains with the signal of oil well bottom hole temperature (BHT), pressure-detecting device, as long as once render to this checkout gear in the well, just can realize simultaneously the detection of oil bottom hole temperature (BHT), pressure and corrosion rate, save time, laborsaving.
Description of drawings
The utility model is described in further detail below in conjunction with embodiment and accompanying drawing.
Fig. 1 is the utility model example structure schematic diagram;
Fig. 2 is the corrosion detection circuitry schematic diagram;
Fig. 3 is the resistance probe fixed structure chart in the corrosion detection circuitry.
Among the figure, 1, rope socket; 2, battery pack casing; 3, circuit protection pipe; 4, wiring board fixed mount; 5, pressure ring; 6, pad; 7, compression fittings; 8, lower contact; 9, lower cone; 10, left insulating layer; 11, right insulating layer; 12, thin-walled tubulose sample; 13, compensation tubulose sample; 14, gasket coating; B10, corrosion checkout gear; A1, battery tube group; A2, cell package; B1, socket; B2, O RunddichtringO; B3, pressure sensor; B4, packing ring; B5, spring washer; B6, slotted pan head screw; B7, O RunddichtringO; B8, jackscrew; B9, temperature pick up; B10, corrosion checkout gear.
The specific embodiment
As shown in Figure 1, rope socket 1 and lower cone 9 are respectively at the two ends of column; Battery pack casing 2 and rope socket 1 have battery tube group A1 and cell package A2 that required voltage is provided by being threaded in the battery pack casing 2.Right-hand member near battery pack casing 2; the column centre position is fixing with wiring board fixed mount 4 by packing ring B4, spring washer B5, slotted pan head screw B6; between the power input of wiring board fixed mount 4 and the battery tube group A1 circuit protection pipe 3 is arranged; circuit protection pipe 3 is fixed in the socket B1; fix by O RunddichtringO B7 and jackscrew B8, with the protection integrated circuit.Two inverted U lower contact 8 one ends connect lower cone 9, and the other end connects compression fittings 7.Compression fittings 7 connects pressure sensor B3, by pressure ring 5, pad 6, O RunddichtringO B2 temperature pick up B9 and pressure sensor B3 are positioned the leftward position that is fixed near two inverted U lower contacts 8, corrosion checkout gear B10 then is fixed in the middle of two inverted U lower contacts 8.Thin-walled tubulose sample 12 among the corrosion checkout gear B10 is porose, makes thin-walled tubulose sample 12 contact (as shown in Figure 3) with the down-hole medium.
Provide the testing circuit figure of corrosion checkout gear as shown in Figure 2, it is by the resistance R that is connected in series, R0, RX, R1, single-chip microcomputer EM78P458, AT24C128 and the clock circuit HT1380 of two-way difference channel, band A/D converter constitute, the both end voltage of resistance R 0 and RX is extracted A/D conversion mouthful P60 and the P61 that its voltage is input to EM78P458 by the two-way difference channel of being made up of TL061, by EM78P458 measure R X value, RX value and the time value that provided by clock circuit HT1380 are stored in the AT24C128.Be stored in the AT24C128 for time of measuring HT1380 with its value, EM78P458 is electrically connected with the access hole of HT1380 and AT24C128 by I/O mouth P50, P51, P52, P53.
Because the electric current by R, R0, RX, R1 is identical, as long as measure the voltage of R0, just can obtain the electric current by R, R0, RX, R1, obtains the RX value by Ohm's law.R and R1 are just obtains high-sensitive RX resistance change and is configured.
As shown in Figure 3, R0 among Fig. 2 and RX are made of thin-walled tubulose sample 12 and compensation tubulose sample 13, and the material structure of R0 and RX is identical.Between thin-walled tubulose sample 12 and the compensation tubulose sample 13 by left insulating layer 10 and right insulating layer 11 and two ends metal-insulator.R0 has gasket coating 14 to ambient medium.RX directly contacts ambient medium.With regard to the material of R0 and RX can be laminar, thread, tubulose or the like.
Principle of the present utility model is: the resistance of metal material is decided by metal itself, its organizational styucture and factor such as geometry.Therefore, when corrosion process influences organizational styucture, length, the cross-sectional area of material, the resistance of material is changed.So, in anticorrosion research, can change according to the resistance of metal material, measure corrosion of metal speed and carry out scene corrosion monitoring.
Claims (7)
1. the multi-functional corrosion rate checkout gear in down-hole is characterized in that: rope socket (1) and lower cone (9) are respectively at the two ends of column; Battery pack casing (2) and rope socket (1) have battery tube group (A1) and cell package (A2) that required voltage is provided by being threaded in the battery pack casing (2); Right-hand member near battery pack casing (2), the column centre position is fixed wiring board fixed mount (4) by packing ring (B4), spring washer (B5), slotted pan head screw (B6), between the power input of wiring board fixed mount (4) and the battery tube group (A1) circuit protection pipe (3) is arranged, circuit protection pipe (3) is fixed in the socket (B1), fix by O RunddichtringO (B7) and jackscrew (B8), two inverted U lower contact (8) one ends connect lower cone (9), and the other end connects compression fittings (7); Compression fittings (7) connects pressure sensor (B3), by pressure ring (5), pad (6), O RunddichtringO (B2) temperature pick up (B9) and pressure sensor (B3) are positioned the leftward position that is fixed near two inverted U lower contacts (8), corrosion checkout gear (B10) then is fixed in the middle of two inverted U lower contacts (8).
2. the multi-functional corrosion rate checkout gear in down-hole according to claim 1 is characterized in that: the thin-walled tubulose sample (12) in the described corrosion checkout gear (B10) is porose.
3. the multi-functional corrosion rate checkout gear in down-hole according to claim 1, it is characterized in that: described corrosion checkout gear (B10) is by the resistance R that is connected in series, R0, RX, R1, the two-way difference channel, the single-chip microcomputer EM78P458 of band A/D converter, AT24C128 and clock circuit HT1380 constitute, the both end voltage of resistance R 0 and resistance R X is electrically connected with the two-way difference channel input that TL061 forms respectively, two-way difference channel output is electrically connected with A/D conversion mouthful P60 and the P61 of EM78P458 respectively, and EM78P458 is electrically connected with AT24C128 and clock circuit HT1380 respectively.
4. the multi-functional corrosion rate checkout gear in down-hole according to claim 3 is characterized in that: described resistance R 0 and resistance R X are made of thin-walled tubulose sample (12) and compensation tubulose sample (13), and resistance R 0 is identical with the material structure of resistance R X.
5. the multi-functional corrosion rate checkout gear in down-hole according to claim 2 is characterized in that: between described thin-walled tubulose sample (12) and compensation tubulose sample (13) by left insulating layer (10) and right insulating layer (11) and two ends metal-insulator.
6. the multi-functional corrosion rate checkout gear in down-hole according to claim 3 is characterized in that: there is gasket coating (14) on described resistance R 0 surface.
7. the multi-functional corrosion rate checkout gear in down-hole according to claim 3 is characterized in that: the shape of the material of described resistance R 0 and resistance R X is laminar or thread or tubulose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200332849U CN201568043U (en) | 2009-05-25 | 2009-05-25 | Underground multifunctional corrosion rate detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200332849U CN201568043U (en) | 2009-05-25 | 2009-05-25 | Underground multifunctional corrosion rate detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201568043U true CN201568043U (en) | 2010-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200332849U Expired - Fee Related CN201568043U (en) | 2009-05-25 | 2009-05-25 | Underground multifunctional corrosion rate detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201568043U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852477A (en) * | 2012-09-28 | 2013-01-02 | 牡丹江市新翔石油机械有限责任公司 | Electric salvage device |
| CN104234690A (en) * | 2014-07-04 | 2014-12-24 | 中国石油天然气股份有限公司 | Grating optical fiber corrosion monitoring sensor |
-
2009
- 2009-05-25 CN CN2009200332849U patent/CN201568043U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852477A (en) * | 2012-09-28 | 2013-01-02 | 牡丹江市新翔石油机械有限责任公司 | Electric salvage device |
| CN104234690A (en) * | 2014-07-04 | 2014-12-24 | 中国石油天然气股份有限公司 | Grating optical fiber corrosion monitoring sensor |
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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 |
Granted publication date: 20100901 Termination date: 20150525 |
|
| EXPY | Termination of patent right or utility model |