CN203321513U - Insulation connecting structure between electromagnetic wave measurement while drilling downhole instruments - Google Patents
Insulation connecting structure between electromagnetic wave measurement while drilling downhole instruments Download PDFInfo
- Publication number
- CN203321513U CN203321513U CN2013203203418U CN201320320341U CN203321513U CN 203321513 U CN203321513 U CN 203321513U CN 2013203203418 U CN2013203203418 U CN 2013203203418U CN 201320320341 U CN201320320341 U CN 201320320341U CN 203321513 U CN203321513 U CN 203321513U
- Authority
- CN
- China
- Prior art keywords
- jointing
- electromagnetic wave
- ceramic
- joint
- insulation
- 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 - Fee Related
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model provides an insulation connecting structure between electromagnetic wave measurement while drilling downhole instruments and belongs to the technical field of manufacture of the electromagnetic wave measurement while drilling downhole instruments of the oil exploration field. The outer surface and external threads of a connecting joint are provided with a solidifiable fluid ceramic layer; a thermal spraying ceramic layer which is arranged outside the solidifiable fluid ceramic layer wraps an outer abrasion-resistant ceramic ring; one end of the connecting joint is connected with the outer abrasion-resistant ceramic ring; the other end of the connecting joint is connected with a transition joint; the solidifiable fluid ceramic layer is arranged between the connecting joint and the transition joint; conducting cables which penetrate the connecting joint are connected with one ends of sealing contact needles; solidifiable fluid ceramic wraps the sealing contact pins; a sealing joint is connected with one end of the connecting joint; the sealing joint is connected with the other ends of the sealing contact pins. According to the insulation connecting structure between the electromagnetic wave measurement while drilling downhole instruments, electrode conducting cables and signal cables can be arranged inside the insulation connecting structure and the safety of two end instrument circuits which are connected with the insulation connecting structure can be protected due to the sealing design which is formed at two ends of the insulation connecting structure after the insulating connection fails.
Description
Technical field
The utility model relates to a kind of electromagnetic wave while-drilling and measures the insulation connection structure between downhole instrument, belongs to instrument manufacturing technical field under petroleum exploration field electromagnetic wave while-drilling measuring well.
Background technology
The electromagnetic wave while-drilling measuring technique is as the new technology of petroleum exploration field, it comprises two emission electrodes of insulation relatively with boring instrument this technical requirements, upper and lower emission electrode with respectively with the upper/lower terminal drill string conducting of its exterior insulation drill collar pipe nipple laminating, make upper drill, lower drill with interlayer set up closed electric loop.
According to the application characteristic of electromagnetic wave while-drilling technology, the insulation connection structure of downhole drill instrument will meet following requirement:
1. the down-hole vibrations are violent, and mud is serious to the erosion of instrument cover face, requires insulation connection structure to have higher shock resistance and abrasion resistance;
2. the insulation connection structure two ends form two emission electrodes, require insulation connection structure internal placement electrode conduction cable and signal cable;
3. after the insulation Joint failure, mud may infiltrate syndeton inside, affects the safety of its two ends equipment circuit, requires insulation connection structure and its two end instrument to do Seal Design.
In prior art, there do not is the insulation connection structure of the electromagnetic wave while-drilling instrument that meets above-mentioned requirements.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of electromagnetic wave while-drilling to measure the insulation connection structure between downhole instrument.
For solving the problems referred to above of prior art, the utility model provides a kind of electromagnetic wave while-drilling to measure the insulation connection structure between downhole instrument, applying this syndeton can be with boring instrument and realizes electrical insulation characteristics, connect in insulation the emission electrode that two ends form upper and lower mutually insulated, two electrodes are fitted with the upper/lower terminal drill string conducting of its exterior insulation drill collar pipe nipple respectively, make upper drill, lower drill and ground interlayer set up closed electric loop.
For reaching above-mentioned purpose, the utility model adopts following technical scheme: a kind of electromagnetic wave while-drilling is measured the insulation connection structure between downhole instrument, jointing external surface and external screw thread have the percentage of condensable fluid ceramic layer, the ceramic coated layer of percentage of condensable fluid ceramic layer heat in the exterior, the outer wear-resistant ceramic ring of Thermal Sprayed Ceramic parcel, one end of jointing connects outer wear-resistant ceramic ring, one end of jointing 1 connects transit joint, the percentage of condensable fluid ceramic layer is arranged between jointing and transit joint, in jointing, there is the conducting cable to pass, the conducting cable connects the sealing contact pin, the outer wrapping percentage of condensable fluid pottery of sealing contact pin, seal nipple is connected with an end of jointing, seal nipple connects the other end of sealing contact pin.
There is circular arc tooth form external screw thread at the jointing two ends.
0.15 ± 0.05 millimeter of the radial clearance of jointing and outer wear-resistant ceramic gasket ring, fill the percentage of condensable fluid ceramic materials in gap; The tolerance fit of location ceramic ring and jointing reducing boss is matched in clearance.
The utility model has the advantages that being applicable to electromagnetic wave while-drilling measures the insulation connection between downhole instrument, this insulation system has higher shock resistance and abrasion resistance; Section arranges electrode conduction cable and signal cable within it; After the insulation Joint failure, the Seal Design at insulation system two ends can be protected the safety of the two ends equipment circuit connected with it in addition.
The accompanying drawing explanation
When considered in conjunction with the accompanying drawings, by the detailed description with reference to following, can more completely understand better the utility model and easily learn wherein many advantages of following, but accompanying drawing described herein is used to provide further understanding of the present utility model, form a part of the present utility model, schematic description and description of the present utility model, for explaining the utility model, does not form improper restriction of the present utility model, as schemed wherein:
Fig. 1 is insulation connection structure schematic diagram of the present utility model;
Fig. 2 is application principle schematic diagram of the present utility model;
Fig. 3 is the circular arc tooth form external screw thread figure of jointing of the present utility model.
Below in conjunction with drawings and Examples, the utility model is further illustrated.
The specific embodiment
Obviously, the many modifications and variations that those skilled in the art do based on aim of the present utility model belong to protection domain of the present utility model.
Embodiment 1: as shown in Figure 1, Figure 2, Figure 3 shows, a kind of electromagnetic wave while-drilling is measured the insulation connection structure between downhole instrument;
Fig. 2 is application principle schematic diagram of the present utility model, insulation connection structure 20 described in the utility model is connected in electromagnetic wave downhole drill instrument, one end of insulation connection structure 20 connects upper conducting contact support 11a, end instrument pipe nipple 12a in conducting contact support 11a connection, the other end of insulation connection structure 20 connects lower conducting contact support 11b, lower conducting contact support 11b connects lower end instrument pipe nipple 12b, realize two end instruments insulation and on forming, lower two emission electrodes, two emission electrodes are upper with the insulating short section drill collar A's outside with it respectively, the drill string conducting laminating of lower two ends, make upper drill, closed electric loop is set up on 13, lower drill and stratum.
Fig. 1 is insulation connection structure schematic diagram of the present utility model, a kind of electromagnetic wave while-drilling is measured the insulation connection structure between downhole instrument, jointing 1 external surface and external screw thread have percentage of condensable fluid ceramic layer 7, the ceramic coated layer 6 of percentage of condensable fluid ceramic layer 7 heat in the exterior, the outer wear-resistant ceramic ring 4 of Thermal Sprayed Ceramic 6 parcel, one end of jointing 1 connects outer wear-resistant ceramic ring 2, one end of jointing 1 connects transit joint 3, between jointing 1 and transit joint 3, percentage of condensable fluid ceramic layer 7 is arranged, in jointing 1, there is conducting cable 9 to pass, conducting cable 9 connects sealing contact pin 10, the outer wrapping percentage of condensable fluid pottery 8 of sealing contact pin 10, seal nipple 5 is connected with an end of jointing 1, seal nipple 5 connects the other end of sealing contact pin 10.
The manufacture method of this insulation connection structure is:
1, jointing is formed by high-intensity non-magnetic materials processing, at its external surface and external arc screw thread (Fig. 3), locates to do the thermal spraying on surface PROCESS FOR TREATMENT, and sprayed on material be take ceramic powders as main, 0.05～0.08 millimeter of coating layer thickness; Surface roughness Ra 10-15 μ m; Rockwell hardness >=HRC70, the bond strength of coating and jointing is greater than 90Mpa;
1.1, after surface spraying, retaining rubber is evenly smeared to by the reducing boss place at jointing two ends, after two location ceramic rings are enclosed within respectively on the reducing boss, after 10 minutes, retaining rubber solidifies, the location ceramic ring installs;
1.2, the jointing level is fixed on the turntable coaxial with it, turntable drives jointing with 45～60 rev/mins of speed uniform rotation, evenly smear the special percentage of condensable fluid ceramic materials of one deck at the jointing external surface, thickness>0.2 millimeter, turntable stops, and outer wear-resistant ceramic ring set is entered to the jointing external surface;
1.3, jointing two ends circular thread is evenly smeared to retaining rubber, two transit joints are connected to respectively to the jointing two ends, screw tightening torque is 150～200Nm;
1.4, cleaning jointing external surface excess fluid ceramic materials, the complete insulation connection structure of assembling is put into to 60 degree incubators insulation 24 hours;
1.5, take out insulation connection structure, retighten on the coaxial turntable of Yu Yuqi, turntable drives jointing with 900～1200 rev/mins of speed uniform rotation, with 120 order sand paper, structural outer surface is polished smooth, and now the isolator of insulation connection structure is manufactured complete;
2, by high temperature scolding tin and signal conduction cable and electrode cable two ends firm welding for the contact pin ring, polishing solder joint wedge angle, after cable is passed to (step 1.5) described isolator inner chamber;
3, will seal contact pin sealing ring place and smear silicone grease, retaining rubber is smeared at the screw thread place, and all sealing contact pins are fixed on seal nipple;
4, the contact pin ring correspondence of (step 2) is inserted to (on the sealing contact pin of step 3) seal nipple, then needle seal is vertically placed upward, with the polytetrafluoroethylene (PTFE) mould of two semi-ring circles, all needle seals are set with to its inside, pour into (step 1.2) described fluid ceramic materials to inside, do not cross the contact pin ring, after all component is put into to 60 degree incubators insulation 24 hours;
4.1, take out seal nipple, the polytetrafluoroethylene (PTFE) mould is unloaded;
5, one of them seal nipple and the threaded one end of (step 1.5) described isolator are connected, screw tightening torque is 150～200Nm, now check that there is not the twisted wire phenomenon in isolator inner chamber cable, then the some circles of another seal nipple reverse, the other end screw thread of itself and isolator is connected, screw tightening torque is 150～200Nm, the number of turns of above-mentioned some circles depends on the screw thread rotation number of turns, purpose be the other end fastening after, isolator inner chamber cable keeps relaxation state, now, the insulation connection structure between a set of downhole instrument is manufactured complete;
6, the sealing helmet spinning of manufacturing the seal nipple at complete insulation connection structure two ends enters position, put into the pressure testing device of water medium, 70MPa maintains 8 hours, opens the sealing helmet, detect the insulation resistance value of all right and insulation connection structure of cable conducting >=30M Ω, this insulation system is qualified.
Embodiment 2:
Jointing is made by titanium alloy, 40 millimeters of external diameters, 12 millimeters of internal diameters, 180 millimeters of length, transit joint is made by non-magnetic material 17-4PH, 48 millimeters of external diameters, 39 millimeters of internal diameters, 180 millimeters of length, 0.08～0.1 millimeter of the two thread pitch, do the surface ceramic hot spraying at jointing external surface and external screw thread place, 0.06 ± 0.01 millimeter of coating layer thickness, the two screw tightening torque is 180 ± 10Nm.The tolerance fit of location ceramic ring and jointing reducing boss is matched in clearance, and fitting face is smeared happy safe 668 retaining rubbers, so that assembling.48 millimeters of outer wear-resistant ceramic ring external diameters, 40.4 millimeters of internal diameters, 68 millimeters of length, be enclosed within the jointing external surface, the ceramic materials that is not less than 0.2 millimeters thick is arranged between the two, outer wear-resistant ceramic ring and gap, transit joint place are filled up with same material ceramic materials, require 48 millimeters of whole insulating body external diameters, surface roughness Ra 10-15 μ m, ceramic junction flawless produces.Seal nipple is made by beryllium-bronze, 48 millimeters of external diameters, one end is furnished with 7 needle seal contact pins, 2 is the electrode contact pin, all the other 5 is signal pin, an other end is the design of spiral shell button, instrument docking that can be corresponding with it is fastening, cable contact pin ring correspondence is inserted to needle seal contact pin place, 32 millimeters of 38 millimeters of polytetrafluoroethylene (PTFE) mould external diameters, internal diameters, high 32 millimeters (not the having the contact pin ring) of two semi-ring circles, mould and seal nipple are coaxially placed, with ceramic materials, be covered with cavity body of mould, after solidifying, remove mould.Seal nipple and transit joint are fastening, and screw tightening torque is 180 ± 10Nm.
As mentioned above, embodiment of the present utility model is explained, but, as long as not breaking away from fact inventive point of the present utility model and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, within such variation also all is included in protection domain of the present utility model.
Claims (3)
1. an electromagnetic wave while-drilling is measured the insulation connection structure between downhole instrument, it is characterized in that jointing external surface and external screw thread have the percentage of condensable fluid ceramic layer, the ceramic coated layer of percentage of condensable fluid ceramic layer heat in the exterior, the outer wear-resistant ceramic ring of Thermal Sprayed Ceramic parcel, one end of jointing connects outer wear-resistant ceramic ring, one end of jointing connects transit joint, the percentage of condensable fluid ceramic layer is arranged between jointing and transit joint, in jointing, there is the conducting cable to pass, the conducting cable connects the sealing contact pin, the outer wrapping percentage of condensable fluid pottery of sealing contact pin, seal nipple is connected with an end of jointing, seal nipple connects the other end of sealing contact pin.
2. a kind of electromagnetic wave while-drilling according to claim 1 is measured the insulation connection structure between downhole instrument, it is characterized in that there is circular arc tooth form external screw thread at the jointing two ends.
3. a kind of electromagnetic wave while-drilling according to claim 1 is measured the insulation connection structure between downhole instrument, it is characterized in that 0.15 ± 0.05 millimeter of the radial clearance of jointing and outer wear-resistant ceramic gasket ring, filling percentage of condensable fluid ceramic materials in gap; The tolerance fit of location ceramic ring and jointing reducing boss is matched in clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203203418U CN203321513U (en) | 2013-06-05 | 2013-06-05 | Insulation connecting structure between electromagnetic wave measurement while drilling downhole instruments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203203418U CN203321513U (en) | 2013-06-05 | 2013-06-05 | Insulation connecting structure between electromagnetic wave measurement while drilling downhole instruments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203321513U true CN203321513U (en) | 2013-12-04 |
Family
ID=49660876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203203418U Expired - Fee Related CN203321513U (en) | 2013-06-05 | 2013-06-05 | Insulation connecting structure between electromagnetic wave measurement while drilling downhole instruments |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203321513U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089013A (en) * | 2014-07-29 | 2014-10-08 | 中国海洋石油总公司 | While-drilling acoustic wave sealing device |
| CN106401564A (en) * | 2016-06-07 | 2017-02-15 | 华北科技学院 | Measuring device for rapidly sealing coal seam drill hole during drilling |
| CN109798105A (en) * | 2017-11-14 | 2019-05-24 | 中国石油化工股份有限公司 | Measurement while-drilling instrument and measurement-while-drilling system |
-
2013
- 2013-06-05 CN CN2013203203418U patent/CN203321513U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089013A (en) * | 2014-07-29 | 2014-10-08 | 中国海洋石油总公司 | While-drilling acoustic wave sealing device |
| CN104089013B (en) * | 2014-07-29 | 2016-05-18 | 中国海洋石油总公司 | A kind of with boring sonic seal device |
| CN106401564A (en) * | 2016-06-07 | 2017-02-15 | 华北科技学院 | Measuring device for rapidly sealing coal seam drill hole during drilling |
| CN106401564B (en) * | 2016-06-07 | 2023-08-08 | 华北科技学院 | Measuring device for drilling while drilling quick sealing coal seam |
| CN109798105A (en) * | 2017-11-14 | 2019-05-24 | 中国石油化工股份有限公司 | Measurement while-drilling instrument and measurement-while-drilling system |
| CN109798105B (en) * | 2017-11-14 | 2022-02-01 | 中国石油化工股份有限公司 | Measurement-while-drilling instrument and measurement-while-drilling system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104213911B (en) | Insulating connection structure between underground electromagnetic wave measurement-while-drilling devices and manufacturing method | |
| CN205303776U (en) | Glass sealing multicore connector of nai pressurization | |
| CN203321513U (en) | Insulation connecting structure between electromagnetic wave measurement while drilling downhole instruments | |
| AU2014262425B2 (en) | Multiple use termination system | |
| CA2846748C (en) | High voltage mechanical splice connector | |
| CN104681166B (en) | A kind of anti-overflow hermetic type charge bearing detecting cable | |
| US4483393A (en) | Well logging apparatus and method for making same | |
| US20070131412A1 (en) | Mass Isolation Joint for Electrically Isolating a Downhole Tool | |
| CN109215861B (en) | Corrosion-resistant submersible pump cable and manufacturing method thereof | |
| CN110397407B (en) | Double-shoulder conductive drill rod | |
| RU2484566C1 (en) | Sealed electric connector | |
| US7400811B2 (en) | Sealed feedthrough assembly for optical fiber | |
| CN107833678A (en) | One kind sealing bailing special load testing photoelectronic composite powerful cable | |
| CN102041993A (en) | Rotating short joint for oil well logging | |
| CN208093200U (en) | A kind of sealing bailing special load testing photoelectronic composite powerful cable | |
| CN200943451Y (en) | Rubber wing centralizer | |
| CN102562029A (en) | Method for protecting ultrasonic transducer from rotary installation and ultrasonic transducer fastening structure | |
| CN115693266A (en) | Underwater plugging electric connector with double redundant sealing structures | |
| US20140144695A1 (en) | Systems and Methods for Coupling a Power Cable to a Downhole Motor Using a Penetrator | |
| CN112768982B (en) | Temperature-resistant pressure-bearing electric connector for liquid resistivity sensor | |
| CN203808980U (en) | Butt-joint device for horizontal well logging cable and logging instrument | |
| CN210739583U (en) | Oil seepage prevention structure matched with thermal resistance temperature element for use | |
| CN107816344B (en) | While-drilling lateral electrode system main-screen integrated electrode structure and preparation method thereof | |
| CN106593317B (en) | A kind of insulating inner tube and preparation method thereof | |
| CN202734981U (en) | Thermocouple structure penetratingly installed on pump shell |
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: 20131204 Termination date: 20210605 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |