CN103807537B - Through casing resistivity logging instrument hydraulic self-sealing joint - Google Patents
Through casing resistivity logging instrument hydraulic self-sealing joint Download PDFInfo
- Publication number
- CN103807537B CN103807537B CN201210456253.0A CN201210456253A CN103807537B CN 103807537 B CN103807537 B CN 103807537B CN 201210456253 A CN201210456253 A CN 201210456253A CN 103807537 B CN103807537 B CN 103807537B
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- power supply
- supply head
- packing cavity
- upper power
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 12
- 238000012856 packing Methods 0.000 claims abstract description 21
- 210000002445 nipple Anatomy 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000010720 hydraulic oil Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L29/00—Joints with fluid cut-off means
- F16L29/02—Joints with fluid cut-off means with a cut-off device in one of the two pipe ends, the cut-off device being automatically opened when the coupling is applied
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention discloses a kind of through casing resistivity logging instrument hydraulic self-sealing joint, including upper power supply head and hydraulic pressure segment trailer.One section of spring is provided with the hydraulic packing cavity of hydraulic pressure segment trailer, the end of spring is provided with ball sealer.When being connected on upper power supply head with hydraulic pressure segment trailer, the outlet of pin end through the hydraulic packing cavity of the seal nipple on upper power supply head is stretched into hydraulic packing cavity, by ball sealer jack-up.When dismantling hydraulic pressure segment trailer and upper power supply head, the pin end of the seal nipple on upper power supply head is exited from hydraulic packing cavity, and spring heads into the ball sealer outlet of hydraulic packing cavity, blocks the outlet.This self-sealing joint of the present invention is simple in construction, is not only able to be prevented effectively from a large amount of losses of the hydraulic oil in logging instrument unloading process, and reduces pollution of the hydraulic oil to environment, reduces the workload of apparatus guarantee maintenance.
Description
Technical field
The present invention relates to oil measuring technology, relate more specifically to a kind of through casing resistivity logging instrument hydraulic self-sealing
Joint.
Background technology
Through casing resistivity logging instrument is a kind of instrument for measuring the formation resistivity after sleeve pipe.When the electrode of logging instrument is pushed away
By to when being close to casing wall, electrode is powered to sleeve pipe.Because sleeve pipe and stratum are all conductors, can casing wall other positions
Detect potential.Electric current is main in sleeve pipe, and only seldom a part flows into stratum.Into stratum the magnitude of current by stratum electricity
Conductance is determined.Due to proportional from the electrical potential difference of casing leakage electric current and the electrical conductivity on stratum, therefore with the electricity of logging instrument
Measure the electrical potential difference from casing leakage electric current in pole, you can obtain the resistivity distribution of cased well.By the resistance for analyzing cased well
Rate is distributed, and then finds possible leakage oil reservoir.
Hydraulic control system of the backup process on logging instrument of electrode to casing wall is completed.The hydraulic control system is entered
, it is necessary to carry out the hydraulic oil in the dismounting of hydraulic pressure segment trailer and upper power supply head, hydraulic control system oil sac during row maintaining
It can be lost in.Such case can not only lose hydraulic oil, while environmental pollution is also easily caused, and the cleaning of inconvenient logging instrument is protected
Support.
It is therefore desirable to have a kind of technology of simply and easily automatic plugging hydraulic line.
The content of the invention
The invention aims to provide a kind of technology of closure hydraulic line fast automatic in logging instrument maintenance process,
Effectively to control the loss of hydraulic oil in oil sac, it is to avoid environmental pollution, apparatus guarantee is facilitated to maintain.
Therefore, the invention provides a kind of through casing resistivity logging instrument hydraulic self-sealing joint, it includes power supply
Head and hydraulic pressure segment trailer, and one section of spring is provided with the hydraulic packing cavity of the hydraulic pressure segment trailer, in the bullet
The end of spring is provided with ball sealer.
Preferably, when power supply head is connected with the hydraulic pressure segment trailer on described, the sealing on the upper power supply head connects
The outlet of the pin end of head through the hydraulic packing cavity is stretched into the hydraulic packing cavity, by the ball sealer jack-up.
Preferably, on dismantling the hydraulic pressure segment trailer and be described during power supply head, the sealing on the upper power supply head connects
The pin end of head is exited from the hydraulic packing cavity, and the ball sealer is headed into the hydraulic packing cavity by the spring
Outlet.
Preferably, the central axis of the central axis of the spring and the pin end of the seal nipple on the upper power supply head
Overlap.
Preferably, the ball sealer is steel ball.
Preferably, a diameter of 9mm of the ball sealer.
This self-sealing joint of the present invention is simple in construction, dexterously powered in connection head and hydraulic pressure segment trailer
When, the pin end ejection ball sealer of power supply head seal joint is make use of, then makes spring-compressed；And in dismounting hydraulic pressure section tail
When portion and upper power supply head, the outlet of hydraulic packing cavity is blocked using the restoring force promotion ball sealer of spring, so that
It is not only able to be prevented effectively from a large amount of losses of the hydraulic oil in logging instrument unloading process, and reduces hydraulic oil to environment
Pollution, reduces the workload of apparatus guarantee maintenance.
According to the accompanying drawings to the detailed description of the preferred embodiment of the present invention, those skilled in the art will be brighter
Above-mentioned and other purposes, the advantages and features of the present invention.
Brief description of the drawings
Hereinafter will referring to the drawings and with exemplary non-limiting way the preferred embodiments of the present invention are carried out it is detailed
Description.It will be understood by those skilled in the art that accompanying drawing is not necessarily what is be drawn to scale, wherein：
Fig. 1 is showing for through casing resistivity logging instrument hydraulic self-sealing joint in accordance with a preferred embodiment of the present invention
Meaning property sectional view.
Embodiment
Fig. 1 is showing for through casing resistivity logging instrument hydraulic self-sealing joint in accordance with a preferred embodiment of the present invention
Meaning property sectional view.One section of spring 6 is provided with the hydraulic packing cavity 3 of hydraulic pressure segment trailer 10.Preferably, the center of spring 6
Axis is overlapped with the central axis of the pin end 5 of the upper seal nipple of power supply head 20.
The end of spring 6 is provided with ball sealer 4, it can be with the flexible of spring 6 it is preferred that along along the longitudinal direction of seal nipple
Heart axial-movement.Ball sealer 4 is preferably generally steel ball, its diameter preferably about 9mm.
During hydraulic control system normal work on logging instrument, upper power supply head 20 is connected with hydraulic pressure segment trailer 10, upper to supply
The outlet of the pin end 5 of the seal nipple of dateline portion 20 through hydraulic packing cavity 3 is stretched into hydraulic packing cavity 3, by ball sealer 4
Jack-up.Now, hydraulic oil can be flowed freely in hydraulic pipeline 1.
When dismantling hydraulic pressure segment trailer 10 and upper power supply head 20, the pin end 5 of seal nipple is moved back from hydraulic packing cavity 3
Go out, spring 6 heads into ball sealer 4 outlet of hydraulic packing cavity 3, block the outlet, so as to avoid the hydraulic pressure in hydraulic pressure oil sac
The outflow of oil.
So far, although those skilled in the art will appreciate that exemplary preferred reality has at large had shown and described herein
Apply example, still, without departing from the spirit and scope of the present invention, still can directly being determined according to present disclosure or
Derive many other variations or modifications for meeting the principle of the invention.Therefore, the scope of the invention should be understood and defined as covering
Other all these variations or modifications are covered.
Claims (6)
1. a kind of through casing resistivity logging instrument hydraulic self-sealing joint, including upper power supply head and hydraulic pressure segment trailer, it is special
Levy and be：
One section of spring is provided with the hydraulic packing cavity of the hydraulic pressure segment trailer,
The end of the spring is provided with ball sealer.
2. seal nipple according to claim 1, it is characterised in that：
When power supply head is connected with the hydraulic pressure segment trailer on described, the pin end of the seal nipple on the upper power supply head is worn
The outlet for crossing the hydraulic packing cavity is stretched into the hydraulic packing cavity, by the ball sealer jack-up.
3. seal nipple according to claim 2, it is characterised in that：
Dismantle the hydraulic pressure segment trailer and it is described on power head when, the pin end of the seal nipple on the upper power supply head from
Exited in the hydraulic packing cavity, the spring heads into the ball sealer outlet of the hydraulic packing cavity.
4. seal nipple according to claim 1, it is characterised in that：
The central axis of the spring is overlapped with the central axis of the pin end of the seal nipple on the upper power supply head.
5. seal nipple according to claim 1, it is characterised in that：
The ball sealer is steel ball.
6. seal nipple according to claim 1, it is characterised in that：
A diameter of 9mm of the ball sealer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210456253.0A CN103807537B (en) | 2012-11-14 | 2012-11-14 | Through casing resistivity logging instrument hydraulic self-sealing joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210456253.0A CN103807537B (en) | 2012-11-14 | 2012-11-14 | Through casing resistivity logging instrument hydraulic self-sealing joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103807537A CN103807537A (en) | 2014-05-21 |
| CN103807537B true CN103807537B (en) | 2017-09-12 |
Family
ID=50704713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210456253.0A Active CN103807537B (en) | 2012-11-14 | 2012-11-14 | Through casing resistivity logging instrument hydraulic self-sealing joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103807537B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB244044A (en) * | 1924-12-02 | 1926-05-13 | Prost Aine Fils De | Improvements in obturating devices for pipes and the like |
| US5337833A (en) * | 1992-11-30 | 1994-08-16 | Rizzo Salvatore J | Machine for smoothing ground surfaces |
| US5492305A (en) * | 1995-01-12 | 1996-02-20 | Jem Industries, Inc. | Connector assembly for connecting a source of fluid with a container to be filled |
| RU2127363C1 (en) * | 1997-04-22 | 1999-03-10 | Всероссийский научно-исследовательский геологоразведочный институт | Device for investigation of bed fluids |
| CN100529497C (en) * | 2004-04-15 | 2009-08-19 | 大金工业株式会社 | Joint |
| CN2898298Y (en) * | 2006-04-26 | 2007-05-09 | 中国石油天然气集团公司 | Pressure-bearing transfer connector at lower end for hydraulic propeller |
| CN203068010U (en) * | 2012-11-14 | 2013-07-17 | 中国石油集团长城钻探工程有限公司 | Through-casing resistivity logging instrument hydraulic automatic sealing connector |
-
2012
- 2012-11-14 CN CN201210456253.0A patent/CN103807537B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103807537A (en) | 2014-05-21 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |