CN203066887U - Insulating short joint for transmission data of electromagnetic wave measurement while drilling during drilling - Google Patents
Insulating short joint for transmission data of electromagnetic wave measurement while drilling during drilling Download PDFInfo
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- CN203066887U CN203066887U CN 201320030865 CN201320030865U CN203066887U CN 203066887 U CN203066887 U CN 203066887U CN 201320030865 CN201320030865 CN 201320030865 CN 201320030865 U CN201320030865 U CN 201320030865U CN 203066887 U CN203066887 U CN 203066887U
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Abstract
The utility model relates to an insulating short joint for transmission data of electromagnetic wave measurement while drilling during drilling and belongs to the field of measurement while drilling in drilling. The insulating short joint can be applied to electromagnetic wave measurement while drilling and comprises an inner connecting pipe, an external thread joint, an insulating regular prism pipe, an end cover, a high-temperature-resistant O-shaped sealing ring, an insulating ring, an internal thread joint and the like. A firmly combined entirety is formed after assembling and welding; relative motion is avoided under the action of pulling, pressing, bending and torque force; the thread joints at the two ends are electrically isolated mutually and reliably; and according to the structural design, a high-fracture-toughness fiber toughened aluminum oxide structure ceramic part of the insulating short joint mainly bears the pressure action in the drilling process, so the insulating short joint can bear large pressure, pull, torque, bending moment and impact in the drilling process.
Description
Technical field
The utility model relates to a kind of being applicable to during electromagnetic wave while-drilling is measured when drilling and transmits the insulating short section that data are used, and belongs to the measurement while drilling field in the probing.
Background technology
One of main difficult point in the novel electromagnetic wave while-drilling measuring technique in probing field is: not only drilling rod must be divided into two parts electrically isolated from one with insulating short section for forming the electromagnetic wave loop, and this insulating short section must bear big pressure, pulling force, moment of torsion and impact in drilling process.The patented technology of insulating short section is many at present, but the overwhelming majority who retrieves is for purposes such as the measurement of oil pipe static parameter or oil pipe electrical heating, the dynamic torque in the time of can't bearing probing; Aspect insulating short section, have employing to carry out electric partition method at the ceramic coated insulation materials of joint area in probing, but such heat insulating lamina when probably in drilling process, being hit easily fragmentation peel off.The advantage of ceramic materials is that intensity height, hardness are big, high temperature resistant, anticorrosive, wear-resistant, the compressive strength of the aluminium oxide ceramics of 95% purity just also can reach more than 200～300MP up to 2500～3000MP, tensile strength and flexural strength, but an one fatal mechanics weakness is exactly fragility, has seriously hindered pottery in the application of impacting occasion.The preparation technology of engineering structures pottery and technology make a breakthrough in recent years, for example can generate alumina or silicon nitride continuous fiber by sol-gel process or crystal pulling method, adopt chemical vapour deposition (CVD) or osmosis to make the fiber reinforced alumina structural ceramics part of required form, or adopt highly purified nano aluminium oxide powder sintering behind isostatic compaction, thereby produce the dimensional accuracy height, electrical insulating property is good, high strength, particularly have a structural ceramics part of high-fracture toughness.This provides advantage for manufacturing and designing the insulating short section that can bear big pressure, pulling force, moment of torsion, wearing and tearing and impact in drilling process.
Summary of the invention
In order to overcome the problem of under existing various insulating short section is difficult to be subjected to heavy duty and impact load in the Measurement While Drilling Data transmission course the mal-condition drilling rod desired area being carried out reliable electricity isolation, the utility model provides a kind of insulating short section that can use under the probing operating mode, the utility model makes the ceramic part in the insulating short section mainly bear the pressure effect in drilling process by structure design, can give full play to the superpower advantage of ceramic compressive strength, selected fiber reinforced alumina structural ceramics has high fracture toughness again, the insulating short section that Measurement While Drilling Data electromagnetic transmission provided by the utility model is suitable for can bear the big pressure in the drilling process, pulling force, moment of torsion, moment of flexure and impact realize the insulation of drilling rod up and down at desired area.
A kind of for when probing electromagnetic wave while-drilling measure the insulating short section that the transmission data are used, it is characterized in that: insulating short section is made up of parts such as interior connecting tube 1, male connection 2, insulation regular prism pipe 3, end cap 4, two high temperature resistant O RunddichtringOs 5, dead ring 6, female adapters 7; Assemble method is: the male connection 2 in the prismatic hole of positive N in the regular prism pipe (3) that will insulate inserts and has, end cap 4 is loaded onto in male connection 2, be embedded in O RunddichtringO 5 at end cap 4 external surface seal grooves, then insulation regular prism pipe 3 is inserted in interior connecting tube 1, insert end cap 4 again, insert dead ring 6 then, insert the female adapter 7 of good another O RunddichtringO of embedding again, with above-mentioned part centering and sturdy; With above-mentioned part centering and sturdy, the inner bottom surface that this moment, female adapter 7 was stretched out in interior connecting tube 1 should design and leave the above length of 15mm.The maximum outside diameter size of insulating short section is no more than the drilling rod external diameter, and length is 300～500mm.
The size of above-mentioned part designs according to the diameter of tool joint up and down or the joint screw thread type of required coupling, male connection 2 one ends are the conical tube pin thread, female adapter 7 one ends have the conical tube negative thread, can be respectively match with conical tube negative thread and the conical tube pin thread of the respective type of general drilling rod.
Interior connecting tube 1, male connection 2, end cap 4, female adapter 7 are made by 25CrMnMo round steel or thick walled steel tube, insulation regular prism pipe 3, dead ring 6 are fiber reinforced alumina structural ceramics parts of the high-fracture toughness made with chemical vapour deposition technique, and O type circle can adopt the above O RunddichtringO standard component of high temperature resistant 280 ° of C.
Insulation regular prism pipe 3 is positive N prismatic surface for the outside, and an end endoporus also is positive N prismatic surface, preferably makes wall thickness greater than 10mm during design, and the other end is connected with diameter less than the circular hole b of positive N prismatic endoporus circumscribed circle, more than the thickness 40mm.
Interior connecting tube 1 one end external surfaces are positive N prismatic surfaces, and big I becomes matched in clearance with the positive N prismatic endoporus of insulation regular prism pipe 3, and the other end is the circular hole b that cylindrical tube, external diameter of pipe can just pass positive N prismatic endoporus circumscribed circle.
The external diameter 10mm of the column type pipe of connecting tube 1 to be reducing the electric field influence between the two in end cap 4 diameter of bores designs was greater than at least, but guarantee again can not be greatly to allowing the positive N prism of interior connecting tube 1 pass.The cylinder external diameter of end cap 4 one ends is identical with male connection 2 maximum outside diameters, and the other end is the less face of cylinder of the diameter of thick 20mm, and the circular hole a on the threadless end of its diameter dimension and male connection 2 becomes matched in clearance.End cap 4 will also have 5～12mm chamfering with the big end edge car that male connection 2 is fitted, the groove of using as with male connection 2 seam the time, can be used to embed the seal groove of O type circle on the large end face in addition, the drilling mud fluid that inside is led in the time of can preventing from drilling after compressing with dead ring 6 leaks.
More than the dead ring 6 thick 30mm, external diameter is identical with the end cap external diameter, the cylindrical tube of connecting tube 1 in internal diameter just can pass.
The external cylindrical surface of female adapter 7 and the prismatic end face both direction of positive N of interior connecting tube 1 are held out against.Then in the female adapter 7 bottom faces with stretch out in the cylindrical tube handing-over position whole circle fillet welding of connecting tube 1 weld, the 8mm chamfering place that external screw thread 2 and end cap 4 joint portions are held successfully in advance put in order and encloses groove welding and weld again, thereby make the insulating short section strong bonded become an integral body
This insulating short section is generally by interior connecting tube, male connection, insulation regular prism pipe, end cap, high temperature resistant O RunddichtringO, dead ring, parts such as female adapter are formed, at least to comprise that the prismatic body of structural ceramics of an insulation and two are each other by being used for of keeping apart of the prismatic body of pottery and metal joint part that tool joint is connected, make two metal joints by electricity isolation reliably, when the structure design of prismatic build makes this insulating short section bear moment of torsion in drilling process, make metal parts wherein bear most of moment of torsion and pulling force, and ceramic part is mainly born pressure, adopt the fiber reinforced structural ceramics of high-fracture toughness to make insulating short section of the present utility model can in drilling process, bear big pressure, pulling force, moment of torsion, wearing and tearing and impact, reach the requirement of measurement while drilling, designed structure also can avoid two metal joints parts to throw off fully when the ceramic part accident is cracked, avoids insulating short section bottom drilling rod, the falling accident of drilling tool equipment.
The interior connecting tube fixed with metal joint has prismatic dignity, the interior prismatic dignity of the ceramic prismatic body of process and another metal joint matches and can effectively transmit moment of torsion, when the insulating short section two ends are subjected to pulling force, in step surface blocked with the fixed end cap of another metal joint through the pressure-bearing surface of ceramic prismatic body bottom, the connecting tube body bears pulling force suffered between two joints effectively in making, insulating short section is made between each part of back does not have relative motion, has realized electric isolation reliably between two metal joints simultaneously.
The diameter of the ending cover hole that the prism step surface maximum size of interior connecting tube body is passed through greater than interior connecting tube body cylindrical tube part so interior connecting tube body can not the whole ending cover hole that passes, can not throw off the two ends metal joint fully when the lifting drilling rod.
The cavity of the required drilling fluid of probing circulation is left in inside, and might take place to have adopted high temperature resistant O RunddichtringO sealing between the slit that mud leaks, and the cavity of insulating short section inside also can pass through cable.
The metal parts of insulating short section adopt the high solderability simultaneously of intensity still passable 25CrMnMo steel make, adopt weld preheating and postweld heat preservation method during welding, can avoid or reduce cold crack and generate.
Beneficial effect:
The beneficial effects of the utility model are: this insulating short section can bear big pressure, pulling force, moment of torsion, moment of flexure and the impact in the drilling process, and these insulating short section two ends will have the excellent electric insulation performance with the joining male connection 2 of the nipple of upper and lower drilling rod with female adapter 7 respectively to each other.
Insulating short section of the present utility model is not only and has been adopted the fiber reinforced alumina structural ceramics with high strength, high-fracture toughness that can manufacture at present both at home and abroad, and the topmost stress that the ceramic part in this insulating short section is born by reasonable structural design in probing is the compressive stress that ceramic materials has superiority most, and these ceramic parts have suitable thickness, and these can reduce the cracked possibility of ceramic part greatly.
Just in case because unexpected, serious overburden or long-term impact fatigue are broken the insulating ceramics body, because the circumscribed circle diameter of the regular prism body region of interior connecting tube 1 is greater than the smallest circle bore dia of the end cap 4 that welds with male connection 2, interior connecting tube can not be passed through ending cover hole, bottom drilling rod and drilling tool can not be separated from fully with top rod, so still can mention lower drilling tool easily, change insulating short section then, thereby avoid causing heavy losses
This insulating short section is made and is uncomplicated, is convenient to produce in batches in factory its transportation and connect all very convenient with drilling rod up and down.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the decomposing schematic representation of insulating short section structure of the present utility model.Among the figure: connecting tube in the 1-, 2-male connection, 3-insulation be (six) prismatic pipe, 4-end cap, 5-O RunddichtringO (totally two), 6-dead ring, 7-female adapter just.
Fig. 2 is that insulating short section assembling of the present utility model back sectional view, part sequence number connotation are the same.
Fig. 3 is the schematic diagram of interior connecting tube 1.
Fig. 4 is the schematic diagram of male connection 2.
Fig. 5 is the schematic diagram of (six) prismatic pipe 3 of just insulating.
Fig. 6 is the schematic diagram of end cap 4.
Fig. 7 is the schematic diagram of dead ring 6.
Fig. 8 is the schematic diagram of female adapter 7.
The specific embodiment
Because the size of part will design according to the diameter of tool joint up and down or the joint screw thread type of required coupling in the insulating short section of the present utility model, this only with the coupling thread type be NC46 (4 " IF) tool joint for example; to the in addition corresponding adjustment of the used accessory size of drilling rod of coupling other types and diameter, what the positive N prism in male connection, interior connecting tube and the insulation regular prism pipe was enumerated in this example and accompanying drawing is positive six prisms.
Insulation six prism pipes 3 are for the outside is positive six prismatic surfaces of the every length of side 46.8 ± 0.1mm in bottom surface, high 100mm, and an end is the positive six prismatic endoporus of the dark 60mm of the bottom surface length of side 35.9 ± 0.1mm, and the other end is connected with diameter 52mm circular hole, thick 40mm.
Interior connecting tube 1 internal diameter is 32mm, and an end external surface is that long 62mm, the bottom surface length of side are positive six prismatic surfaces of 35.7 ± 0.1mm, and the other end is long 210mm, the face of cylinder of diameter 51.8 ± 0.2mm, is connected with the circular hole that internal diameter is 32mm.
With reference to Fig. 1: the six prismatic pipes 3 that at first will insulate insert the male connection 2 with interior six prismatic holes, six prismatic surfaces of the two are matched, end cap 4 is loaded onto in male connection 2, be embedded in 85 * 5.3O RunddichtringO 5 at end cap 4 external surface sealed grooves, insulation six prismatic pipes 3 are inserted in connecting tube 1 in making then, and match with interior six prismatic surfaces of insulation six prismatic pipes 3 in six prismatic outsides of connecting tube 1 in making, pass end cap 4 again, insert dead ring 6 more successively, and the female adapter 7 of good another the 85 * 5.3O RunddichtringO of embedding, make each adjacent parts centering, adjacent face is adjacent to.
With female adapter 7 external cylindrical surfaces and end edge chucking, hold out against with the thrust that is not less than 3000N with hydraulic jack from six prismatic end faces of interior connecting tube 1, earlier from female adapter 7 interior bottom faces and several insulating short section overall fixed that make of cylindrical tube interface spot welding of stretching out interior connecting tube 1, take off the tool that is installed then, reach about 180 ° of C～230 ° C for interior bottom face and the preheating of cylindrical tube junction of female adapter 7, whole circle carries out 10 * 10mm fillet welding then, cold crack can be avoided or reduce to postweld heat preservation more than 1 hour like this.The 8mm chamfering place that the method that adopts weld preheating, postweld heat preservation then equally goes out external screw thread 2 and end cap 4 joint portions car put in order encloses groove welding, thereby makes the insulating short section strong bonded become an integral body,
Screw with male end and the female end of the top and the bottom drilling rod of respective threaded model respectively in on-the-spot female end and the male end with insulating short section of the present utility model of probing, be about to the electricity isolation reliably of top and the bottom drilling rod, and still can drill, if connect the two ends of electromagnetic wave transmitter output loop respectively, can will carry out wireless transmission in the Measurement While Drilling Data.
Claims (9)
1. an electromagnetic wave while-drilling when being used for probing is measured the insulating short section that the transmission data are used, and it is characterized in that: insulating short section is made up of interior connecting tube (1), male connection (2), insulation regular prism pipe (3), end cap (4), two high temperature resistant O RunddichtringOs (5), dead ring (6), female adapter (7) part; Connected mode is: the male connection (2) in the prismatic hole of positive N in the regular prism pipe (3) that will insulate inserts and has, end cap (4) is loaded onto in male connection (2), be embedded in O RunddichtringO (5) at end cap (4) external surface seal groove, then interior connecting tube (1) is inserted insulation regular prism pipe (3), insert end cap (4) again, insert dead ring (6) then, insert the female adapter (7) of good another O RunddichtringO of embedding again, with above-mentioned part centering and sturdy; The maximum outside diameter size of insulating short section is no more than the drilling rod external diameter, and length is 300～500mm.
According to claim 1 a kind of for when probing electromagnetic wave while-drilling measure the insulating short section that the transmission data are used, it is characterized in that: male connection (2) one ends are the conical tube pin thread, female adapter (7) one ends have the conical tube negative thread, match with conical tube negative thread and the conical tube pin thread of the respective type of general drilling rod respectively.
According to claim 1 a kind of for when probing electromagnetic wave while-drilling measure the insulating short section that the transmission data are used, it is characterized in that: interior connecting tube (1), male connection (2), end cap (4) and female adapter (7) are made by 25CrMnMo round steel or thick walled steel tube, insulation regular prism pipe (3), dead ring (6) are the fiber reinforced alumina structural ceramics parts of the high-fracture toughness made with chemical vapour deposition technique, and O type circle adopts the above O RunddichtringO standard component of high temperature resistant 280 ° of C.
According to claim 1 a kind of for when probing electromagnetic wave while-drilling measure the insulating short section that the transmission data are used, it is characterized in that: male connection (2) endoporus is positive N prismatic surface, N is the natural number greater than 2, but after the other end edge car relative with the conical tube pin thread goes out 5～12mm chamfering and becomes with the groove of end cap (4) welding usefulness, and going out the circular hole a that internal diameter equals the prismatic circumscribed circle column diameter of positive N at this end face car, the degree of depth is more than the 20mm.
According to claim 1 a kind of for when probing electromagnetic wave while-drilling measure the insulating short section that the transmission data are used, it is characterized in that: insulation regular prism pipe (3) is positive N prismatic surface for the outside, one end endoporus also is positive N prismatic surface, make wall thickness greater than 10mm during design, the other end is connected with diameter less than the circular hole b of positive N prismatic endoporus circumscribed circle, more than the thickness 40mm.
According to claim 1 a kind of for when probing electromagnetic wave while-drilling measure the insulating short section that the transmission data are used, it is characterized in that: interior connecting tube (1) one end external surface is positive N prismatic surface, size becomes matched in clearance with the positive N prismatic endoporus of insulation regular prism pipe (3), and the other end is the circular hole b that cylindrical tube, external diameter of pipe can just pass positive N prismatic endoporus circumscribed circle.
According to claim 1 a kind of for when probing electromagnetic wave while-drilling measure the insulating short section that the transmission data are used, it is characterized in that: end cap (4) diameter of bore design is greater than the external diameter 10mm of the column type pipe of interior connecting tube (1) at least, but guarantee again can not be greatly to allowing the positive N prism of interior connecting tube (1) pass; The cylinder external diameter of end cap (4) one ends is identical with male connection (2) maximum outside diameter, and the other end is the face of cylinder of thick 20mm, and the circular hole a on the threadless end of its diameter dimension and male connection (2) becomes matched in clearance; End cap (4) will also have 5～12mm chamfering with the big end edge car that male connection (2) is fitted, and the groove of using as with male connection (2) seam the time can be used to embed the seal groove of O type circle in addition on the large end face, compressing with dead ring (6).
According to claim 1 a kind of for when probing electromagnetic wave while-drilling measure the insulating short section that the transmission data are used, it is characterized in that: more than the thick 30mm of dead ring (6), external diameter is identical with the end cap external diameter, internal diameter just can pass the cylindrical tube of interior connecting tube 1.
According to claim 1 a kind of for when probing electromagnetic wave while-drilling measure the insulating short section that the transmission data are used, it is characterized in that: female adapter (7) external diameter equals the isolator external diameter, one end bores the negative thread with drilling rod respective pin coupling, have from the other end and to be not less than the thick bottom surface of 30mm, the firm circular hole that can pass the cylindrical tube of interior connecting tube (1) is left at its center, and also has to embed the seal groove of O type circle at the bottom surface outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320030865 CN203066887U (en) | 2013-01-18 | 2013-01-18 | Insulating short joint for transmission data of electromagnetic wave measurement while drilling during drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320030865 CN203066887U (en) | 2013-01-18 | 2013-01-18 | Insulating short joint for transmission data of electromagnetic wave measurement while drilling during drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203066887U true CN203066887U (en) | 2013-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320030865 Expired - Fee Related CN203066887U (en) | 2013-01-18 | 2013-01-18 | Insulating short joint for transmission data of electromagnetic wave measurement while drilling during drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203066887U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233722A (en) * | 2013-04-28 | 2013-08-07 | 中煤科工集团西安研究院 | Coal mine underground explosion proof type electromagnetic wave wireless measurement while drilling system and application method thereof |
| CN110295855A (en) * | 2019-05-27 | 2019-10-01 | 中国石油天然气集团有限公司 | A kind of insulating short section for well logging |
-
2013
- 2013-01-18 CN CN 201320030865 patent/CN203066887U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233722A (en) * | 2013-04-28 | 2013-08-07 | 中煤科工集团西安研究院 | Coal mine underground explosion proof type electromagnetic wave wireless measurement while drilling system and application method thereof |
| CN103233722B (en) * | 2013-04-28 | 2015-01-07 | 中煤科工集团西安研究院有限公司 | Coal mine underground explosion proof type electromagnetic wave wireless measurement while drilling system and application method thereof |
| CN110295855A (en) * | 2019-05-27 | 2019-10-01 | 中国石油天然气集团有限公司 | A kind of insulating short section for well logging |
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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: 20130717 Termination date: 20180118 |
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| CF01 | Termination of patent right due to non-payment of annual fee |