CN202348135U - Electromagnetic wave pup joint - Google Patents
Electromagnetic wave pup joint Download PDFInfo
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- CN202348135U CN202348135U CN201120468892XU CN201120468892U CN202348135U CN 202348135 U CN202348135 U CN 202348135U CN 201120468892X U CN201120468892X U CN 201120468892XU CN 201120468892 U CN201120468892 U CN 201120468892U CN 202348135 U CN202348135 U CN 202348135U
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- female joint
- male joint
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Abstract
The utility model relates to an electromagnetic wave pup joint for petroleum drilling and exploitation. The electromagnetic wave pup joint is characterized by comprising a female joint and a male joint, wherein the male joint is in threaded connection with the female joint; a high temperature-resistant and wear-resistant insulating coating is sprayed at the threaded joint of the male joint and the female joint; the end faces of the male joint and the female joint, which are opposite to each other are partitioned by a high temperature-resistant insulating spacer; a high temperature-resistant and wear-resistant insulating rubber layer is arranged on each of inner surfaces of the male joint and the female joint, and the high temperature-resistant and wear-resistant insulating rubber layer in the male joint and the high temperature-resistant and wear-resistant insulating rubber layer in the female joint are poured integrally; and a high temperature-resistant and wear-resistant glass steel wire layer is adhered to each of outer surfaces of the male joint and the female joint, and the high temperature-resistant and wear-resistant glass steel wire layer outside the male joint and the high temperature-resistant and wear-resistant glass steel wire layer outside the female joint are integrated. According to the electromagnetic wave pup joint, torsion is transferred in the drilling process of a drilling tool, and a drill stem on the top is insulated from a drilling collar on the lower part; and the electromagnetic wave pup joint has reliable performance, so that low-frequency electromagnetic waves of information measured by a well logging instrument during drilling are propagated towards strata at the periphery of a well, and the transmission efficiency is improved.
Description
Technical field
The utility model relates to a kind of oil drilling and r eoovery machine and logging technique, specifically is that the electromagnetic wave pipe nipple is used in a kind of well logging during.
Background technology
In exploration of oil and gas field, development process, must log well after the drilling well, so that understand the oily situation on stratum.Obtaining often after the drilling well completion of well-log information put into well with cable with instrument and measured, yet, in some cases, surpass the high angle hole even the horizontal well of 65 degree like the gradient of well, be difficult to instrument is put down with cable; In addition, borehole wall situation is bad easyly caves in or stops up also that difficulty obtains well-log information.Owing to will use circulation of drilling fluid in the drilling process, to take out of and bore broken landwaste, drilling fluid filtrate is invaded the stratum always; Therefore, well logging again after having bored, the various parameters on stratum with just bore when turning up the soil layer difference to some extent; So people are placed on logger on the drill bit, let drill bit length go up " eyes ", Yi Bian creep into; Obtain the various data on stratum, well logging during that Here it is on one side.
Logging while drilling technology can be applicable to the well of any situation, especially is fit to high angle hole and horizontal well, and can utilizes the drilling parameter and the formation parameter that record in time to adjust bit course, makes it to creep into along the target zone direction.Because the formation parameter that well logging during obtains is just to have bored the formation parameter of opening, near the reset condition on stratum, the oil-containing, the gas evaluation that are used for bad ground are more favourable than general wireline logging for it.The well logging during instrument is placed in the drill collar, except that conventional loggings such as measured resistivity, the velocity of sound, neutron porosity, density and some imaging logging, also can measure drilling parameters such as the pressure of the drill, moment of torsion, rotating speed, annular pressure.
The key technology of well logging during is the signal transmission, and at present widely used is the drilling liquid pressure burst transmissions, and this is the method that present well logging during instrument generally adopts, and it is that measured parameter is transformed into the drilling liquid pressure pulse, is sent to ground with circulation of drilling fluid.
The advantage of drilling liquid pressure burst transmissions is economical, convenient, and shortcoming is that data transmission rate is low.
For improving transfer rate, bring into use the electromagnetic transmission technology, it is that the well logging during instrument is placed in the non magnetic drill collar, between non magnetic drill collar and the top rod insulating short section is arranged, so that be loaded with the low frequency electromagnetic wave direction well week earth-layer propagation of information measured.On ground, detected as the voltage difference between rig and the ground electrodes
The electromagnetic transmission technological merit is that transfer rate is high, not influenced by property of drilling fluid.In addition, also have the downhole stored mode, total data is stored in the downhole memory, the back data collection of waiting to pull out of hole.Advantage is that cost is low, and data are preserved reliable.
One of key technology of electromagnetic transmission logging signal is to be connected non-magnetic to bore very and the insulating short section between the drilling rod.If this pipe nipple can not be accomplished to insulate and the effect of transfer torque, the advantage that the electromagnetic transmission rate is high is just brought into play not come out.
And existing insulating short section all can not finely address this problem.
The utility model content
In order to satisfy the reliability of well logging during electromagnetic transmission technology; The purpose of the utility model is to provide a kind of electromagnetic wave pipe nipple, and this electromagnetic wave pipe nipple is connected that non-magnetic bores very and between the drilling rod in drilling process; Drilling rod with bore two ones up and down that very are divided into mutual insulating; Form electricity and isolate, it can be in the drilling tool drilling process transfer torque, can top drilling rod and bottom be bored very to insulate again and come; Make the well logging during instrument record the low frequency electromagnetic wave direction well week earth-layer propagation of information, improve efficiency of transmission.
For solving the problem of electromagnetic wave pipe nipple transfer torque and insulation, the utility model adopts following technical scheme: this electromagnetic wave pipe nipple comprises female joint, male joint;
Between said male joint and the female joint through being threaded, in order to transmit the drilling well moment of torsion; Threaded connection place between male joint and the female joint is coated with the heat resistant and wear resistant insulating coating;
Separate with the high-temperature insulation pad between relative male joint end face and the female joint end face; The heat resistant and wear resistant insulating coating of this high-temperature insulation pad and threaded connection place is divided into male joint and female joint two parts of mutually insulated;
Male joint inner surface, female joint inner surface are equipped with one deck heat resistant and wear resistant electro-insulating rubber layer, and interior heat resistant and wear resistant electro-insulating rubber layer, the notes of the heat resistant and wear resistant electro-insulating rubber layer in the female joint of male joint are one;
Male joint external surface, all bonding one deck heat resistant and wear resistant of female joint external surface glass steel wire floor, and outer heat resistant and wear resistant glass steel wire floor, the outer heat resistant and wear resistant glass steel wire floor of female joint of male joint is one.
Heat resistant and wear resistant electro-insulating rubber layer, heat resistant and wear resistant glass steel wire floor improve insulating properties.
The beneficial effect of the utility model is: adopt between the male joint of this kind electromagnetic wave pipe nipple, the female joint to be threaded; Mainly be used for transmitting the effect of drilling well moment of torsion, reach the purpose that insulation is isolated through insulating coating, insulation spacer, electro-insulating rubber, insulating glass steel wire between male joint, the female joint.Because mutual insulating and can transfer torque between two joints of electromagnetic wave pipe nipple, bore very and also play a part same between the drilling rod so the electromagnetic wave pipe nipple is connected on non-magnetic.And the insulating properties of this electromagnetic wave pipe nipple are reliable, guarantee the reliability of transmission signal, promptly guarantee the accuracy of survey data.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further explanation:
Fig. 1 is the structural representation of the utility model embodiment,
Fig. 2 is the heat resistant and wear resistant insulating coating structural representation of threaded connection place among the utility model embodiment;
Among the figure: 1 female joint, 2 high-temperature insulation pads, 3 heat resistant and wear resistant glass steel wire floors, 4 heat resistant and wear resistant electro-insulating rubber layers, 5 male joints, 6 heat resistant and wear resistant insulating coatings.
The specific embodiment
As shown in Figure 1, this electromagnetic wave pipe nipple mainly comprises female joint 1, high-temperature insulation pad 2, heat resistant and wear resistant glass steel wire floor 3, heat resistant and wear resistant electro-insulating rubber layer 4, male joint 5.
Electromagnetic wave pipe nipple two ends are connecting threads, and an end is used for jointed rod, an end is used to connect non-magnetic and bores very.
Between female joint 1 and the male joint 5 through being threaded; Be used for transfer torque; Be coated with one deck heat resistant and wear resistant insulating coating 6 between its screw thread and the screw thread, wear-resisting is for two when being threaded, and can not make insulating layer damaged because of the extruding between the screw thread; High temperature resistantly bottom hole temperature (BHT) to be adapted to exactly, the insulating layer timeliness can be do not made because of bottom hole temperature (BHT).
High-temperature insulation pad 2 is contained between female joint 1, male joint 5 opposing end faces, in order to the end face between two joints is isolated, makes the insulation of two joint end faces.Select for use high-temperature insulation pad 2 to adapt to bottom hole temperature (BHT) in addition.
Female joint 1 and male joint 5 are divided into this electromagnetic wave pipe nipple through the heat resistant and wear resistant insulating coating 6 between screw thread, high-temperature insulation pad 2 and heat resistant and wear resistant electro-insulating rubber layer 4, heat resistant and wear resistant glass steel wire floor 3 two parts of mutual insulating.
This electromagnetic wave pipe nipple is connected through drill rod thread that non-magnetic bores very and between the drilling rod, can make drilling rod above with bore very below form two parts of mutually insulated.So that be loaded with the low frequency electromagnetic wave direction well week earth-layer propagation of information measured.On ground, detected as the voltage difference between rig and the ground electrodes.
Claims (1)
1. electromagnetic wave pipe nipple, it is characterized in that: this electromagnetic wave pipe nipple comprises female joint, male joint;
Through being threaded, the threaded connection place between male joint and the female joint is coated with the heat resistant and wear resistant insulating coating between said male joint and the female joint;
Separate with the high-temperature insulation pad between relative male joint end face and the female joint end face;
Male joint inner surface, female joint inner surface are equipped with one deck heat resistant and wear resistant electro-insulating rubber layer, and interior heat resistant and wear resistant electro-insulating rubber layer, the notes of the heat resistant and wear resistant electro-insulating rubber layer in the female joint of male joint are one;
Male joint external surface, all bonding one deck heat resistant and wear resistant of female joint external surface glass steel wire floor, and outer heat resistant and wear resistant glass steel wire floor, the outer heat resistant and wear resistant glass steel wire floor of female joint of male joint is one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120468892XU CN202348135U (en) | 2011-11-23 | 2011-11-23 | Electromagnetic wave pup joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120468892XU CN202348135U (en) | 2011-11-23 | 2011-11-23 | Electromagnetic wave pup joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202348135U true CN202348135U (en) | 2012-07-25 |
Family
ID=46537144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120468892XU Expired - Fee Related CN202348135U (en) | 2011-11-23 | 2011-11-23 | Electromagnetic wave pup joint |
Country Status (1)
| Country | Link |
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| CN (1) | CN202348135U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573259A (en) * | 2012-08-07 | 2014-02-12 | 中国石油化工股份有限公司 | Dipole antenna short section of electromagnetic measurement while drilling system |
| CN103696755A (en) * | 2013-07-18 | 2014-04-02 | 西北工业大学 | Insulation pup joint used for electromagnetic wireless measurement while drilling and manufacturing method for insulation pup joint |
| CN103867191A (en) * | 2014-03-10 | 2014-06-18 | 中国地质大学（武汉） | Anti-wear insulation pipe nipple for electromagnetic wave measurement while drilling |
| CN104213911A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气集团公司 | Insulating connection structure between underground electromagnetic wave measurement-while-drilling devices and manufacturing method |
| CN104956239A (en) * | 2012-08-15 | 2015-09-30 | 通用电气能源油田技术公司 | Isolation ring on gap sub |
| CN106246169A (en) * | 2016-08-31 | 2016-12-21 | 中国科学院地质与地球物理研究所 | A kind of machinery being applicable to down-hole nearly drill bit wireless short pass transmitting |
| CN108756866A (en) * | 2018-05-08 | 2018-11-06 | 中国石油集团渤海钻探工程有限公司 | A kind of protective device of underground resistivity female thread |
-
2011
- 2011-11-23 CN CN201120468892XU patent/CN202348135U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573259A (en) * | 2012-08-07 | 2014-02-12 | 中国石油化工股份有限公司 | Dipole antenna short section of electromagnetic measurement while drilling system |
| CN103573259B (en) * | 2012-08-07 | 2016-01-13 | 中国石油化工股份有限公司 | A kind of dipole antenna pipe nipple of electromagnetic measurement while drilling system |
| CN104956239A (en) * | 2012-08-15 | 2015-09-30 | 通用电气能源油田技术公司 | Isolation ring on gap sub |
| US9829133B2 (en) | 2012-08-15 | 2017-11-28 | Ge Energy Oil Field Technology Inc. | Isolation ring on gap sub |
| CN104213911A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气集团公司 | Insulating connection structure between underground electromagnetic wave measurement-while-drilling devices and manufacturing method |
| CN104213911B (en) * | 2013-06-05 | 2017-04-12 | 中国石油天然气集团公司 | Insulating connection structure between underground electromagnetic wave measurement-while-drilling devices and manufacturing method |
| CN103696755A (en) * | 2013-07-18 | 2014-04-02 | 西北工业大学 | Insulation pup joint used for electromagnetic wireless measurement while drilling and manufacturing method for insulation pup joint |
| CN103696755B (en) * | 2013-07-18 | 2017-05-24 | 西北工业大学 | Insulation pup joint used for electromagnetic wireless measurement while drilling and manufacturing method for insulation pup joint |
| CN103867191A (en) * | 2014-03-10 | 2014-06-18 | 中国地质大学（武汉） | Anti-wear insulation pipe nipple for electromagnetic wave measurement while drilling |
| CN106246169A (en) * | 2016-08-31 | 2016-12-21 | 中国科学院地质与地球物理研究所 | A kind of machinery being applicable to down-hole nearly drill bit wireless short pass transmitting |
| CN106246169B (en) * | 2016-08-31 | 2017-09-01 | 中国科学院地质与地球物理研究所 | A kind of mechanical device suitable for the wireless short pass transmitting of the nearly drill bit in underground |
| CN108756866A (en) * | 2018-05-08 | 2018-11-06 | 中国石油集团渤海钻探工程有限公司 | A kind of protective device of underground resistivity female thread |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20171123 |