CN209053610U - A kind of bottom nose type natural potential well logging instrument device - Google Patents
A kind of bottom nose type natural potential well logging instrument device Download PDFInfo
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- CN209053610U CN209053610U CN201821826327.4U CN201821826327U CN209053610U CN 209053610 U CN209053610 U CN 209053610U CN 201821826327 U CN201821826327 U CN 201821826327U CN 209053610 U CN209053610 U CN 209053610U
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- retaining collar
- electrode retaining
- natural potential
- sealing
- well logging
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Abstract
The utility model provides a kind of bottom nose type natural potential well logging instrument device, it include: top connection, glass fibre reinforced plastic cylinder, instrument outer cylinder, bearing disc, single sealing-plug, insulation sleeve, insulating cylinder, connecting shaft, insulating body, electrode retaining collar and electrode retaining collar mounting body, using the design structure that natural potential pipe nipple is arranged in a kind of bottom nose type natural potential well logging instrument device lowest part, and potentiometric detection electrode retaining collar is mounted on to the bottom nose position of natural potential pipe nipple front end, solve the problems, such as under natural potential well logging instrument device working condition in the prior art potentiometric detection signal vulnerable to the interference of additional electric field in environment and its variation to influence well measurement result, applied in oil field prospecting and production of recovering the oil, oil well self-potential survey effect can be obviously improved, significantly improve measurement accuracy and detection efficiency.
Description
Technical field
The utility model relates to a kind of natural potential well logging instrument device, in particular to a kind of bottom nose type natural potential well logging instrument
Device.
Background technique
Natural potential is an important parameter in geophysical log, and nutural potential logging is exactly to pass through detection and analysis oil
The potential change of natural electric field in well is provided to electrical log instrument referring to data, and then it is special to research and analyse borehole wall bottom lithology
A kind of logging method of point.Natural potential detects used natural potential detecting instrument need to be by cable pulling with instrument string instrument
String is shipped among oil well, by the variation numerical value of natural potential ring acquisition electric field potential, and is analyzed and is obtained through ground instrument
SP curve, usually used natural potential detecting instrument in the prior art, as shown in Figure 1, including bottom nose 10, instrument string lower part
20, natural potential electrode pipe nipple or bilaterally hard electrode 30, natural potential ring 40 and instrument string top with natural potential ring
50, since the middle part of natural potential ring logger string has been arranged in natural potential ring 40, the natural potential telecommunications obtained in addition
Number extremely faint, the interference of additional electric field and its variation easily influences measurement result in environment, wherein additional electric field master above-mentioned
It will be by the electric field that instrument itself generates and the shock wave that instrument moves up and down to electric field (electrolyte solution), in oil producing operation
In actual production, natural potential pipe nipple or bilaterally hard electrode 30 with natural potential ring are connected to natural potential ring immediately
The lower part of logger string, potential measurement effect cannot still be significantly improved.Therefore, improve oil well self-potential survey
Effect improves measurement accuracy and detection efficiency, is that petroleum drilling and mining field is needed to pay much attention to ask with a technology of positive regard
Topic.
Utility model content
The purpose of this utility model is to provide a kind of bottom nose type natural potential well logging instrument device, improves oil well natural potential and surveys
Dose-effect fruit improves measurement accuracy.
A kind of bottom nose type natural potential well logging instrument device, comprising: top connection 1, glass fibre reinforced plastic cylinder 2, instrument outer cylinder 3, bearing disc 4,
Single sealing-plug 19, insulation sleeve 8, insulating cylinder 9, connecting shaft 16, insulating body 6, electrode retaining collar 7 and electrode retaining collar mounting body 5.
The threaded upper ends of the instrument outer cylinder 3 are connected in the top connection 1, and lower thread is connected to the electrode retaining collar peace
The upper end of main body 5 is filled, the instrument outer cylinder 3 is to be tightly connected with the top connection 1 and the connection of electrode retaining collar mounting body 5,
It is separately installed with the first high temperature and pressure sealing ring 11 and third high temperature high-pressure seal ring 13 on the sealing surface that two connect, it is described
The top of instrument outer cylinder 3 offers rotary table plane, and the bearing disc 4 is set in the rotary table plane, lateral surface and the instrument
The medial surface of device outer cylinder 3 forms sealing cooperation, is equipped with the second high temperature and pressure sealing ring 12 on sealing surface；The insulating body 6
Be connected to the electrode retaining collar mounting body 5 by the connecting shaft 16 in the following, the insulating body 6 medial surface and the electrode
The lateral surface of ring mounting body 5 forms sealing cooperation, is equipped with the 4th high temperature and pressure sealing ring 14, the connecting shaft on sealing surface
Both 16 are each passed through the connecting hole being provided in the insulating body 6 and electrode retaining collar mounting body 5, made using tightening nut 17
It is fastened together, is connected to stability to improve, be additionally provided with stop pin 18 in the fastening end of the connecting shaft 16, with
The opposite other end end in the fastening end, 16 side of connecting shaft and the insulating body 6 sealing cooperate, and pacify on sealing surface
Equipped with the 5th high temperature and pressure sealing ring 15, meanwhile, divide on the side wall for the connecting hole being opened in the electrode retaining collar mounting body 5
It is not provided with insulation sleeve 8 and insulating cylinder 9, the insulation sleeve 8 and the insulating cylinder 9 keep the tightening nut 17 and described respectively
Connecting shaft 16 and the electrode retaining collar mounting body 5 realize it is good be electrically insulated, the electrode retaining collar 7 is embedded in the insulating body 6
Front edge area, i.e. the bottom position nose A of natural potential well logging instrument device；Binding post 21, the electrode are provided on the electrode retaining collar 7
Wire guide is offered in ring mounting body 5 with 21 opposite position of binding post, the interior survey end of the wire guide is equipped with close
Sealing cap 22 offers sealing consent on the bearing disc 4, is equipped with single sealing-plug 19, the list in the sealing consent
Core sealing-plug 19 penetrates through the sealing consent, realizes the conducting and transmitting of circuit and signal, the nature acquired by the electrode retaining collar 7
Potential data information is transmitted to external high temperature via the binding post 21, internal high temperature conducting wire 23 and the single sealing-plug 19
Conducting wire 24 is finally transmitted to ground instrument through the external high temperature conducting wire 24, completes the data acquisition of nutural potential logging；It is described
Glass fibre reinforced plastic cylinder 2 is to be wrapped in the high temperature resistant glass fibre reinforced plastic protective layer on the instrument outer cylinder 3 using winding process, is carried on described exhausted
In the trapezoidal rotary table plane that 6 upper surface of edge main body opens up.
Further, the preferably described electrode retaining collar 7 is 1~10 centimetre relative to the setting height H of the bottom bottom end nose A.
The utility model has the beneficial effects that a kind of bottom nose type natural potential well logging instrument device is used natural potential
Pipe nipple is arranged in natural potential well logging instrument device lowest part design structure, and it is short that potentiometric detection electrode retaining collar is mounted on natural potential
The bottom nose position for saving front end solves under natural potential well logging instrument device working condition in the prior art potentiometric detection signal vulnerable to ring
The problem of interference of additional electric field and its variation is in border to influence well measurement result is applied to oil field prospecting and production of recovering the oil
In, it can be obviously improved oil well self-potential survey effect, significantly improve measurement accuracy and detection efficiency.
Detailed description of the invention
Fig. 1, in the prior art natural potential well logging instrument device structure diagram.
Fig. 2, the utility model bottom nose type natural potential well logging instrument device structure longitudinal sectional view.
Specific embodiment
The claimed technical solution of the utility model is further described with attached drawing combined with specific embodiments below.
A kind of bottom nose type natural potential well logging instrument device, as shown in Figure 2, comprising: top connection 1, glass fibre reinforced plastic cylinder 2, instrument outer cylinder
3, bearing disc 4, single sealing-plug 19, insulation sleeve 8, insulating cylinder 9, connecting shaft 16, insulating body 6, electrode retaining collar 7 and electrode retaining collar installation
Main body 5.
Wherein, the electrode retaining collar 6 is one with a kind of bottom nose type natural potential well logging instrument device other parts insulation
Annular element is embedded in the leading edge bottom position nose A of the insulating body 6, and the setting height H relative to the bottom end bottom nose A is 3
Centimetre, the purpose of the setting height is to optimize a kind of bottom nose type on the basis of guaranteeing realization the utility model aim certainly
The structural behaviour of right potential logging instrument.
In installation process, the insulation performance for guaranteeing a kind of bottom nose type natural potential well logging instrument device is first had to, is important to
The insulation performance for paying attention to 9 engaging zones of the insulating body 6 and insulating cylinder, insulating cylinder 9 and 8 engaging zones of insulation sleeve that insulate, is protected
It demonstrate,proves and insulate well between the connecting shaft 16, tightening nut 17 and the electrode retaining collar mounting body 5, while also to carry out to described
The insulation processing of single sealing-plug 19 and the binding post 21；A kind of its secondary described bottom nose type natural potential well logging instrument device of guarantee
Sealing performance, carrying out to first high temperature and pressure sealing 11 circle, the second high temperature and pressure sealing ring 12, third high temperature high pressure
While the sealing performance detection of sealing ring 13, the 4th high temperature and pressure sealing ring 14 and the 5th high temperature and pressure sealing ring 15, also want
Carry out in the sealing consent opened up on the bearing disc 4 and the electrode retaining collar mounting body 16 seal cap 22 in wire guide
Sealing technology processing, so that it is empty to form the trouble free service that one is fully sealed in a kind of bottom nose type natural potential well logging instrument device
Between region B, guarantee being normally carried out for logging operation.
In use process, according to logging operation needs, the top connection 1 of corresponding connector and respective standard is selected, by ground
Portion's instrument is connected to rule with a kind of external high temperature conducting wire 24 that bottom nose type natural potential well logging instrument device connector is connect
On fixed contact pin, a kind of bottom nose type natural potential well logging instrument device is connected to the bottom of logger string, is hanged by cable
It hangs in feeding measurement oil well；In the logger string into oil well distributing procedure, the constantly acquisition of electrode retaining collar 7 obtains oil
The natural potential data information at different depth position in well, the natural potential data information is via the binding post 21, inside
High temperature wire 23 and the single sealing-plug 19, are transmitted to external high temperature conducting wire 24, finally pass through the external high temperature conducting wire 24
It is delivered to the ground instrument to be analyzed and processed, completes data acquisition and the well logging of nutural potential logging.
Natural potential well logging instrument device is arranged in natural potential pipe nipple by a kind of bottom nose type natural potential well logging instrument device
Lowest part, while potentiometric detection electrode retaining collar being mounted on to the preferred site for removing front end bottom nose of natural potential pipe nipple, not vulnerable to ring
The interference of additional electric field and its variation in border, thus well measurement precision with higher and detection efficiency.
Claims (4)
1. a kind of bottom nose type natural potential well logging instrument device, including top connection (1), glass fibre reinforced plastic cylinder (2), instrument outer cylinder (3), bearing disc
(4), single sealing-plug (19) and electrode retaining collar (7), it is characterised in that: further include insulation sleeve (8), insulating cylinder (9), connecting shaft
(16), insulating body (6) and electrode retaining collar mounting body (5)；Wherein:
The threaded upper ends of the instrument outer cylinder (3) are connected on the top connection (1), and lower thread is connected to the electrode retaining collar peace
The upper end of main body (5) is filled, the instrument outer cylinder (3) and the top connection (1) and the connection of electrode retaining collar mounting body (5) are close
Envelope connection, is separately installed with the first high temperature and pressure sealing ring (11) and third high temperature high pressure sealing on the sealing surface that two connect
It encloses (13), the top of the instrument outer cylinder (3) offers rotary table plane, and the bearing disc (4) sets in the rotary table plane,
Lateral surface and the medial surface of the instrument outer cylinder (3) form sealing cooperation, are equipped with the second high temperature and pressure sealing ring on sealing surface
(12)；
The insulating body (6) is connected to the electrode retaining collar mounting body (5) in the following, the insulation by the connecting shaft (16)
The medial surface of main body (6) and the lateral surface of the electrode retaining collar mounting body (5) form sealing cooperation, are equipped with the 4th on sealing surface
High temperature and pressure sealing ring (14), the connecting shaft (16), which is each passed through, is provided with the insulating body (6) and electrode retaining collar installation master
Connecting hole on body (5) makes the two be fastened together, the fastening end with the connecting shaft (16) using tightening nut (17)
Opposite other end end, connecting shaft (16) side and the insulating body (6) sealing cooperate, and the is equipped on sealing surface
Five high temperature and pressure sealing rings (15), meanwhile, on the side wall for the connecting hole being opened on the electrode retaining collar mounting body (5) respectively
It is provided with insulation sleeve (8) and insulating cylinder (9), the electrode retaining collar (7) is embedded in the front edge area of the insulating body (6)；
Be provided with binding post (21) on the electrode retaining collar (7), on the electrode retaining collar mounting body (5) with the binding post (21) phase
Corresponding position offers wire guide, and the interior survey end of the wire guide is equipped with seal cap (22), offers on the bearing disc (4)
Consent is sealed, single sealing-plug (19) are installed in the sealing consent；
The glass fibre reinforced plastic cylinder (2) is to be wrapped in the high temperature resistant glass fibre reinforced plastic protective layer on the instrument outer cylinder (3) using winding process,
It is carried in the trapezoidal rotary table plane that the insulating body (6) upper surface opens up.
2. a kind of bottom nose type natural potential well logging instrument device as described in claim 1, it is characterised in that: electrode retaining collar (7) phase
Setting height H for the bottom bottom end nose A is 1~10 centimetre.
3. a kind of bottom nose type natural potential well logging instrument device as claimed in claim 2, it is characterised in that: electrode retaining collar (7) phase
Setting height H for the bottom bottom end nose A is 3 centimetres.
4. a kind of bottom nose type natural potential well logging instrument device as described in any one of claims 1 to 3, it is characterised in that: described
The fastening end of connecting shaft (16) is provided with stop pin (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821826327.4U CN209053610U (en) | 2018-11-08 | 2018-11-08 | A kind of bottom nose type natural potential well logging instrument device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821826327.4U CN209053610U (en) | 2018-11-08 | 2018-11-08 | A kind of bottom nose type natural potential well logging instrument device |
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| Publication Number | Publication Date |
|---|---|
| CN209053610U true CN209053610U (en) | 2019-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821826327.4U Active CN209053610U (en) | 2018-11-08 | 2018-11-08 | A kind of bottom nose type natural potential well logging instrument device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112835106A (en) * | 2021-01-04 | 2021-05-25 | 中国石油天然气集团有限公司 | Non-polarized receiving electrode structure |
-
2018
- 2018-11-08 CN CN201821826327.4U patent/CN209053610U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112835106A (en) * | 2021-01-04 | 2021-05-25 | 中国石油天然气集团有限公司 | Non-polarized receiving electrode structure |
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