CN205277305U - Device of crooked number of degrees of screw rod is bent to steerable list in pit - Google Patents
Device of crooked number of degrees of screw rod is bent to steerable list in pit Download PDFInfo
- Publication number
- CN205277305U CN205277305U CN201620008321.0U CN201620008321U CN205277305U CN 205277305 U CN205277305 U CN 205277305U CN 201620008321 U CN201620008321 U CN 201620008321U CN 205277305 U CN205277305 U CN 205277305U
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- gear
- degrees
- single bend
- electromagnetic wave
- control
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Abstract
The utility model discloses a device of crooked number of degrees of screw rod is bent to steerable list in pit, including the electromagnetic wave transmitter, the electromagnetic wave transmitter is connection director and display in proper order, and the electromagnetic wave of electromagnetic wave transmitter transmission is received by the signal wave detector, and the signal wave detector connects gradually signal processor, motor drive and gear, and signal wave detector, signal processor and motor drive all set up in single curved screw rod elbow point department, and gear sets up inside the position sleeve. The problem of the angle modulation mode of current single curved screw rod the manufacturing cost height and the production cycle that exist long is solved.
Description
Technical field
The utility model belongs to oil field single bend PDM operating device technical field, it relates to a kind of down-hole can control the device of the bending number of degrees of single bend PDM.
Background technology
At present, in China's oil recovery process, universal is single bend PDM control hole deviation, single bend PDM drilling tool is utilized to coordinate rotating disk to bore the structure of downhole assembly carrying out deflecting control, this kind of make-up of string can effectively control hole deviation when little the pressure of the drill, low drilling speed, realize the raising of drilling speed, and the safe handling of bottomhole assembly can not be affected, reach object safe, efficient, that low cost controls hole deviation. Single bend PDM combines the constructional feature having due to self, and by its control hole deviation, than using, traditional oblique anti-inclining drill combination that entangles has stronger advantage. The selection of single bend PDM angle, according to borehole curvature, maximum hole deviation parameter determines the number of degrees of single bend PDM, according to experience, general between 0.75 �㡫1.75 ��, single bend PDM uses under two kinds of operating modes, and inclination section slipping drilling single bend PDM not only provides well dynamic, its single bight portion is equivalent to single toggle joint that former inclination section uses simultaneously, and its single bending angle determines the size of rate of deviation change. Compound drilling stage single bend PDM not only provides well dynamic to work together with rotating disk to improve the rotating speed of drill bit, and meanwhile, its single bight portion is equivalent to the eccentric shaft connection that straight well uses, and has certain anti-oblique effect. Single bending angle is excessive, drilling tool can be made to bear bigger repeated stress, and suffer fatigure failure. And single bent angle is spent little, in the complex structural well use procedure such as extended reach well and horizontal well, deflecting difficulty strengthens, and deflecting speed is relatively slow, directly affects drilling well duration and the quality of well depth structure.
At present, to the bending angular adjustment of single bend PDM in oil field, unique method is exactly, regulating single bend PDM to bend the number of degrees by removing brill, diesel oil expense each produced like this, the expenses such as labour cost are no small spendings, and delay the construction duration, cause financial loss significantly.
Practical novel content
The purpose of this utility model is to provide the device that a kind of down-hole can control the bending number of degrees of single bend PDM, the problem of the production cost height that the angular adjustment mode solving existing single bend PDM exists and production cycle length.
The technical scheme that the utility model adopts is, a kind of down-hole can control the device of the bending number of degrees of single bend PDM, comprise electromagnetic wave transmitter, electromagnetic wave transmitter is connection control device and indicating meter successively, the hertzian wave that electromagnetic wave transmitter is launched is received by signal demodulator device, signal demodulator device is connection signal treater, motor driver and wheel gearing successively, signal demodulator device, signal processing device and motor driver are all arranged on single bend PDM elbow point place, and wheel gearing is arranged on locating sleeve inside.
Feature of the present utility model is also,
Wherein wheel gearing comprises power set, and power set connects geartransmission system.
Wherein geartransmission system comprises gear shaft A, and gear shaft A is socketed with gear A, gear B respectively, and gear A engages with gear C, and gear C is socketed on gear shaft B, and gear shaft B is connected with power set; Being connected with internal wheel E around the inside of described locating sleeve, be provided with gear D between described gear B internal wheel E, gear B, gear D engage successively with gear E.
Wherein power set is stepper-motor, and the motor shaft of stepper-motor is connected with gear shaft B by shaft coupling.
Wherein gear B is coaxial with gear E.
The beneficial effects of the utility model are, this device can realize the bending number of degrees that single bend PDM is directly changed in down-hole, save the diesel oil expense of drilling, shorten the drilling well duration, reduce borehole operation casualty ratio of accidents, reduce drilling cost, it is applicable to the complex structural well such as extended reach well and horizontal well and the bigger well of development difficulty. Having stronger suitability and generalization, its structure is simple, and cost is lower, has saved the drilling cost that inclination drilling process is unnecessary.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing single bend PDM;
Fig. 2 is the connection structural representation of adjustable bending housing and short drill collar in single bend PDM shown in Fig. 1;
Fig. 3 is the structural representation that a kind of down-hole of the utility model can control the device of the bending number of degrees of single bend PDM;
Fig. 4 is the structural representation that a kind of down-hole of the utility model can control the device middle gear transmission mechanism of the bending number of degrees of single bend PDM.
In figure, 1. adjustable bending housing, 2. short drill collar, 3. upper housing, 4. screw thread sliding silk, 5. locating sleeve, 6. toggle joint, 7. lower housing, 8. indicating meter, 9. controller, 10. electromagnetic wave transmitter, 11. gear shaft A, 12. single bend PDM elbow points, 13. oil reservoirs, 14. water layers, 15. loess formations, 16. power set, 17. gear A, 18. gear shaft B, 19. gear B, 20. gear Cs, 21. gear Ds, 22. gear E.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
A kind of down-hole of the utility model can control the device of the bending number of degrees of single bend PDM, the structure of its single bend PDM acted on is as shown in Figure 1, 2, single bend PDM comprises adjustable bending housing 1 and short drill collar 2, short drill collar 2 comprises upper housing 3, adjustable bending housing 1 comprises locating sleeve 5, one end of locating sleeve 5 connects lower housing 7 by toggle joint 6, and the other end of locating sleeve 5 is connected with upper housing 3, connects and composes single bend PDM elbow point 12 in certain angle of inclination between locating sleeve 5 and upper housing 3.
The apparatus structure that a kind of down-hole of the utility model can control the bending number of degrees of single bend PDM is as shown in Figure 3, comprise electromagnetic wave transmitter 10, electromagnetic wave transmitter 10 is connection control device 9 and indicating meter 8 successively, the hertzian wave 11 that electromagnetic wave transmitter 10 is launched is received by signal demodulator device, signal demodulator device is connection signal treater and geartransmission transmission mechanism successively, signal demodulator device and signal processing device are all arranged on single bend PDM elbow point 12 place, and it is inner that wheel gearing is arranged on locating sleeve 5.
As shown in Figure 4, wheel gearing comprises power set 16, power set 16 connects geartransmission system, geartransmission system comprises gear shaft A11, gear shaft A11 is socketed with gear A 17, gear B 19 respectively, gear A 17 engages with gear C 20, and gear C 20 is socketed on gear shaft B18, and gear shaft B18 is connected with power set 16; Being connected with internal wheel E22 around the inside of described locating sleeve 5, be provided with gear D 21 between described gear B 19 internal wheel E22, gear B 19, gear D 21 engage with gear E22, and gear B 19 is coaxial with gear E22.
Power set 16 is stepper-motor, and the motor shaft of stepper-motor is connected with gear shaft B18 by shaft coupling.
The chip model that its middle controller 8 adopts is AT89C51.
Wherein the model of signal processing device is TMS320F2812PGFA.
Wherein the model of signal demodulator device is DZ.40-ZCJ001.
Wherein the model of motor driver is MA860H.
The principle of work of the device that a kind of down-hole of the utility model can control the bending number of degrees of single bend PDM is, controller 3 on ground controls electromagnetic wave transmitter 10 and launches hertzian wave, hertzian wave is successively by loess formation 15, water layer 14 and oil reservoir 13, arrive the signal demodulator device at single bend PDM elbow point 12 place, down-hole, signal demodulator device will connect the Signal transmissions detected to signal processing device, signal processing device is sent to motor driver after being processed by signal, motor driver drives stepper-motor running, stepper-motor driven gear axle B18 rotates, rotated with the driven gear axle A11 that engages of gear A 17 by gear C 20, gear shaft A11 rotation driven gear B19, gear D 21 and gear E22 engaged transmission successively, owing to gear E22 is close to the inwall being arranged on locating sleeve 5, therefore gear E22 rotates and is rotated by drive locating sleeve 5, thus complete the angular adjustment between locating sleeve 5 and upper housing 3, namely under completed well, the change of single bend PDM sinuousness number operates, the Data Dynamic of the bending number of degrees of single bend PDM in regulate process is all shown by indicating meter 8.
The feature of the device that a kind of down-hole of the utility model can control the bending number of degrees of single bend PDM is that this apparatus structure is simple, easy to operate, changes the bending number of degrees of current single bend PDM and regulates the construction status that must remove brill. The extended reach well faced under being specially adapted to the exploitation actuality of current China and horizontal well.
Claims (5)
1. a down-hole can control the device that single bend PDM bends the number of degrees, it is characterized in that: comprise electromagnetic wave transmitter (10), electromagnetic wave transmitter (10) is connection control device (9) and indicating meter (8) successively, the hertzian wave that described electromagnetic wave transmitter (10) is launched is received by signal demodulator device, described signal demodulator device connection signal treater successively, motor driver and wheel gearing, described signal demodulator device, signal processing device and motor driver are all arranged on single bend PDM elbow point (12) place, it is inner that described wheel gearing is arranged on locating sleeve (5).
2. a kind of down-hole according to claim 1 can control the device of the bending number of degrees of single bend PDM, it is characterised in that: described wheel gearing comprises power set (16), and power set (16) connects geartransmission system.
3. a kind of down-hole according to claim 2 can control the device of the bending number of degrees of single bend PDM, it is characterized in that: described geartransmission system comprises gear shaft A (11), gear shaft A (11) is socketed with gear A (17), gear B (19) respectively, described gear A (17) engages with gear C (20), gear C (20) is socketed on gear shaft B (18), and gear shaft B (18) is connected with described power set (16); It is connected with internal wheel E (22) around the inside of described locating sleeve (5), being provided with gear D (21) between described gear B (19) internal wheel E (22), gear B (19), gear D (21) engage successively with gear E (22).
4. a kind of down-hole according to claim 3 can control the device of the bending number of degrees of single bend PDM, it is characterized in that: described power set (16) is stepper-motor, the motor shaft of described stepper-motor is connected with described gear shaft B (18) by shaft coupling.
5. a kind of down-hole according to claim 3 can control the device of the bending number of degrees of single bend PDM, it is characterised in that: described gear B (19) is coaxial with gear E (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620008321.0U CN205277305U (en) | 2016-01-06 | 2016-01-06 | Device of crooked number of degrees of screw rod is bent to steerable list in pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620008321.0U CN205277305U (en) | 2016-01-06 | 2016-01-06 | Device of crooked number of degrees of screw rod is bent to steerable list in pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205277305U true CN205277305U (en) | 2016-06-01 |
Family
ID=56061888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620008321.0U Expired - Fee Related CN205277305U (en) | 2016-01-06 | 2016-01-06 | Device of crooked number of degrees of screw rod is bent to steerable list in pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205277305U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484669A (en) * | 2016-01-06 | 2016-04-13 | 延长油田股份有限公司西区采油厂 | Device for controlling bending degree of single-bent screw underground |
| CN108222834A (en) * | 2018-01-03 | 2018-06-29 | 西南石油大学 | A kind of adjustable deflecting tool in underground |
-
2016
- 2016-01-06 CN CN201620008321.0U patent/CN205277305U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484669A (en) * | 2016-01-06 | 2016-04-13 | 延长油田股份有限公司西区采油厂 | Device for controlling bending degree of single-bent screw underground |
| CN108222834A (en) * | 2018-01-03 | 2018-06-29 | 西南石油大学 | A kind of adjustable deflecting tool in underground |
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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: 20160601 Termination date: 20170106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |