CN202081865U - Underground intelligent paraffin removal instrument - Google Patents
Underground intelligent paraffin removal instrument Download PDFInfo
- Publication number
- CN202081865U CN202081865U CN2011201991446U CN201120199144U CN202081865U CN 202081865 U CN202081865 U CN 202081865U CN 2011201991446 U CN2011201991446 U CN 2011201991446U CN 201120199144 U CN201120199144 U CN 201120199144U CN 202081865 U CN202081865 U CN 202081865U
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- CN
- China
- Prior art keywords
- wax removal
- removal instrument
- power controller
- weighted lever
- downhole intelligent
- 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.)
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Abstract
The utility model discloses an underground intelligent paraffin removal instrument, which comprises a rope socket, a power controller, a weight bar and a screw cutter. The rope socket, the power controller and the weight bar are sequentially fixedly connected, a power output shaft is disposed inside the power controller along the axial direction of the paraffin removal instrument, a rotating shaft is pivotally disposed at the inner edge of the weight bar axially, the power output shaft is fixedly connected with the rotating shaft, the rotating shaft is fixedly connected with the screw cutter at the other end, which is opposite to the power controller, of the weight bar, a plurality of rollers are disposed on the lateral wall of the weight bar in an extruded manner and provided with rotation speed sensors, and signal cables of the rotation speed sensors are connected with the power controller. The underground intelligent paraffin removal instrument can automatically adjust paraffin removal action in a paraffin removal procedure, improves paraffin removal efficiency and accordingly leads testing of a production well to be smoothly operated.
Description
Technical field
The utility model relates to a kind of wax removal instrument, especially relates to a kind of wax removal action that can adjust automatically in the wax removal process, improves wax removal efficient, thus the downhole intelligent wax removal instrument that the producing well test is normally carried out.
Background technology
In the oil recovery process of oil field,, make wax deposition in the oil well oil conduit post owing to contain wax in the crude oil:
(1) reduce to wax precipitation point when following when temperature, wax is separated out from crude oil with crystal form;
(2) temperature, pressure continue to reduce, and gas is separated out, and the wax that crystallization is separated out is assembled the formation wax crystal of growing up;
(3) wax crystal is deposited on the surface of pipeline and equipment etc.
Crude oil is to the reduction of the solubility with temperature of wax and reduce, and when temperature is reduced to crude oil to the solubility of wax during less than a certain value of the paraffin content of crude oil, the wax that dissolves in the crude oil just begins to separate out; Wax deposition in the oil well oil conduit post diminishes the tubing string internal diameter, influences recovery ratio, so need regularly to remove the wax in the tubing string.Mainly by the gravitational method wax removal, effect is limited for field produces well wax removal at present, for some high angle hole, and often wax removal failure, this has had a strong impact on the normal recovery activity of producing well.And existing wax removal technique and instrument be because reasons in structure exists the problem of complex process, wax removal cost height and wax removal weak effect, and the wax removal operating efficiency is low, has prolonged oil well and has stopped the well time, thereby reduced the oil well recovery ratio, influences ordinary production; Simultaneously,, therefore can not effectively implement the wax removal operation of varying strength, and very easily cause occurring in the wax removal process wax and remove incomplete or wax such as can't remove at problem according to the difference of wax deposition degree because existing wax removal instrument mainly relies on the passive wax removal of action of gravity.
The utility model content
The technical problem that the utility model solves provides a kind of downhole intelligent wax removal instrument, adjusts the wax removal action in the wax removal process automatically, improves wax removal efficient.
Technical solution of the present utility model is:
A kind of downhole intelligent wax removal instrument, wherein, this wax removal instrument includes rope socket, power controller, weighted lever and helical cutters; Described rope socket, power controller, weighted lever are fixedly connected sequentially; Be axially arranged with power output shaft along this wax removal instrument in the described power controller, axially be pivoted with turning cylinder along it in the described weighted lever, described power output shaft is fixedlyed connected with described turning cylinder; In the other end of the described relatively power controller of described weighted lever, described turning cylinder is fixedlyed connected with described helical cutters; Outstanding outer its sidewall is provided with a plurality of rollers on the described weighted lever, and described roller is provided with speed probe, and the holding wire of described speed probe is connected with described power controller.
Above-mentioned downhole intelligent wax removal instrument, wherein, the 120 ° of distributions at interval on the axial direction of vertical this wax removal instrument in described weighted lever sidewall upper edge of described roller, described roller number is six.
Above-mentioned downhole intelligent wax removal instrument, wherein, described roller is in the setting of staggering vertically of described weighted lever outer peripheral edges.
Above-mentioned downhole intelligent wax removal instrument wherein, is that screw thread or bayonet lock connect between described rope socket, power controller, the weighted lever and between the described power output shaft, turning cylinder, rotary cutter.
Above-mentioned downhole intelligent wax removal instrument wherein, is provided with dc motor in the described power controller.
Above-mentioned downhole intelligent wax removal instrument, wherein, described power controller also includes the control circuit that sends the different rotary signal according to the rotation speed change of described roller to described dc motor.
Above-mentioned downhole intelligent wax removal instrument, wherein, described control circuit includes single-chip microcomputer.
Above-mentioned downhole intelligent wax removal instrument wherein, also is provided with power supply in the described power controller.
Above-mentioned downhole intelligent wax removal instrument, wherein, described power supply is a battery.
Above-mentioned downhole intelligent wax removal instrument, wherein, the power output shaft of described power controller and the power transmission shaft of weighted lever are equipped with hermetically-sealed construction.
Learn that by above explanation the utility model can reach following effect compared with prior art really:
Downhole intelligent wax removal instrument of the present utility model, by the roller that can roll on the borehole wall is being set on the weighted lever, and the rolling speed that detects roller adjusts the rotary speed of helical cutters, thereby realizes the Based Intelligent Control operation of downhole intelligent wax removal instrument; The different rotary state of helical cutters can be tackled the solid situation of various oily wax knot that runs in the wax removal process of down-hole effectively, thereby be made the wax removal effect more obvious, has improved the operating efficiency of paraffin removal from oil well; Realized the operation of mediation oil country tubular good not only time saving and energy savingly, and ensured for follow-up test job provides necessity, reliable.
Description of drawings
Fig. 1 is the structural representation of downhole intelligent wax removal instrument of the present utility model.
The critical element label declaration:
1: rope socket 2: power controller 3: weighted lever
4: helical cutters 5: roller
The specific embodiment
A kind of downhole intelligent wax removal instrument includes rope socket, power controller, weighted lever and helical cutters; Described rope socket, power controller, weighted lever are fixedly connected sequentially; Be axially arranged with power output shaft along this wax removal instrument in the described power controller, axially be pivoted with turning cylinder along it in the described weighted lever, described power output shaft is fixedlyed connected with described turning cylinder; In the other end of the described relatively power controller of described weighted lever, described turning cylinder is fixedlyed connected with described helical cutters; Outstanding outer its sidewall is provided with a plurality of rollers on the described weighted lever, and described roller is provided with speed probe, and the holding wire of described speed probe is connected with described power controller.
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast the description of drawings specific embodiment of the present utility model.
As shown in Figure 1, be a better embodiment of downhole intelligent wax removal instrument of the present utility model, the jackrod structure that it is roughly a strip includes rope socket 1, power controller 2, weighted lever 3 and helical cutters 4; And rope socket 1, power controller 2, weighted lever 3 are fixedly connected sequentially, and all are provided with along its long axis direction is corresponding, and promptly rope socket 1 second end is connected with first end of power controller 2, and second end of power controller 2 is connected with first end of weighted lever 3; In addition, power controller 2 and weighted lever 3 are hollow structure, be axially arranged with power output shaft along the wax removal instrument in the power controller 2, axially be pivoted with turning cylinder along it in the weighted lever 3, be that output shaft and turning cylinder are arranged at same direction, and be located along the same line, and power output shaft can rotate with respect to the shell of power controller 2, turning cylinder can rotate with respect to weighted lever, therefore, can make power output shaft fixedly connected, thereby when power output shaft rotated, the turning cylinder in the weighted lever 3 was also along with power output shaft rotates synchronously with turning cylinder; The helical cutters 4 that the utility model was provided with, be arranged at the other end of weighted lever 3 relative power controllers 2, it is second end of weighted lever 3, fixedly connected with helical cutters 4 by turning cylinder helical cutters 4 and wax removal instrument are fused, so, when power output shaft rotates, drive power transmission shaft and rotate, then drive helical cutters 4 and rotate synchronously, the wax of being tied in the oil well is removed; Outstanding outer its sidewall also is provided with a plurality of rollers 5 on the weighted lever 3 of the present utility model, be arranged on diverse location on weighted lever 3 sidewalls via these rollers 5, in downhole intelligent wax removal instrument of the present utility model be lowered to oil well and and the wax removal process in played the effect of setting upright; Simultaneously, roller 5 can be along with the wax removal instrument rotates along moving up and down of oil well tube wall; In addition, roller of the present utility model is provided with speed probe, detection by speed probe, can access the velocity of rotation signal of roller 5, the holding wire of speed probe is connected with power controller 2, and power controller 2 can be controlled the velocity of rotation and the rotation direction of power output shaft according to the tach signal of roller 5, takes different wax removal action carrying out paraffin removal from oil well operations thereby control downhole intelligent wax removal instrument of the present utility model.
Downhole intelligent wax removal instrument of the present utility model, preferable, for being threaded, promptly connecting portion between rope socket 1 and the power controller 2 and power controller 2 are connected with the mode that connecting portion between the weighted lever 3 adopts screw thread to screw between rope socket 1, power controller 2, the weighted lever 3; Simultaneously, also adopt between power output shaft, turning cylinder, the rotary cutter 4 to be threaded, promptly connecting portion between power output shaft and the turning cylinder and turning cylinder are connected with the mode that connecting portion employing screw thread between the rotary cutter 4 screws.Each above-mentioned connecting portion except can adopt screw thread screw ways of connecting fixing, can also adopt the mode of bayonet lock location fixedly connected, promptly corresponding two ends that connect are provided with concavo-convex matching part, and on the correspondence position of matching part, be equipped with pin hole, after two end corresponding matching are provided with, adopt fixedly connected two ends of latch.The connected mode of above-mentioned connecting portion of the present utility model is not limited in this, and also the connected mode that can adopt screw thread to combine with bayonet lock also can adopt other modes that both ends are connected and fixed to connect.
Preferable, in aforesaid each connecting portion, downhole intelligent wax removal instrument of the present utility model also is provided with corresponding water-tight structure in aforementioned connecting portion, make the wax removal instrument go into the well and the wax removal process in its inner sealing state that keeps, protection each several part structure.Water-tight structure between above-mentioned connecting portion can be sealing ring or sealing mat.
In addition, wax removal instrument under the smart well of the present utility model, the power output shaft of its power controller 2 and the power transmission shaft of weighted lever are equipped with the hermetically-sealed construction (not shown), owing to need to fixedly connected between power output shaft and the power transmission shaft, and can be provided with rotatably with respect to power controller 2 and weighted lever 3, so the sealing structure is the rotational slide hermetically-sealed construction.
Downhole intelligent wax removal instrument of the present utility model, in preferred implementation, it is provided with dc motor in power controller 2; By being arranged on the dc motor in the power controller 2, can directly driving power output shaft and rotate, thereby drive power transmission shaft and helical cutters 4 is rotatablely moved.
Downhole intelligent wax removal instrument of the present utility model, preferable, its power controller 2 also includes the control circuit that sends the different rotary signal according to the rotation speed change of roller 5 to described dc motor.This control circuit is connected with speed probe on being arranged at weighted lever 3, speed probe is by detecting the rotating speed of roller, and the tach signal of roller is sent to control circuit in the power controller 2, control circuit sends the control signal of rotating speed and rotation direction after treatment to dc motor, with the velocity of rotation and the rotation direction of control helical cutters 4.
Preferable, downhole intelligent wax removal instrument of the present utility model includes single-chip microcomputer in its control circuit; Downhole intelligent wax removal instrument of the present utility model has the rotary speed and the direction of rotation of automatic adjustment helical cutters 4, and it mainly is to carry out programming Control via the single-chip microcomputer in this control circuit; For the paraffin removal from oil well operation under the different operating modes, can be concrete carry out necessary adjustment according to field condition, adopt different rotation control modes, to reach better wax removal effect.And the control mode of rotary cutter rotary operation of the present utility model is: control circuit receives the roller tach signal that speed probe provides, and judges running speed; Monolithic device output signal, control helical cutters 4 rotating speeds are directly proportional with running speed; When the rotating speed of roller sets value less than one, control circuit control helical cutters 4 backward rotation.
Thus, make helical cutters 4 independently adjust the wax removal action automatically, make wax removal operation efficient more according to the situation of wax deposition in the oil well.
Downhole intelligent wax removal instrument of the present utility model in a preferred implementation, also is provided with power supply in its power controller 2, thereby has simplified the power supply architecture of wax removal instrument in the wax removal process of down-hole, need not additionally to be provided with power line and connects.Preferably, described power supply is a battery.
Downhole intelligent wax removal instrument of the present utility model has the better effect of setting upright in order to make the roller 5 that is arranged on the weighted lever 3, and is preferable, and roller 5 is 120 ° of distributions at interval on the axial direction of the vertical wax removal instrument in weighted lever 3 sidewall upper edges, and roller 5 numbers are six.As shown in the figure, six rollers of downhole intelligent wax removal instrument of the present utility model preferable for along the setting of axially staggering of wax removal instrument.
Be example now, the concrete course of work of downhole intelligent wax removal instrument of the present utility model be described with a better embodiment of the present utility model:
(1) downhole intelligent wax removal instrument of the present utility model is at first programmed in ground before being lowered to oil well, and motor start-up, dwell time are set; And, helical cutters rotating speed and running speed relation table are set according to on-the-spot actual condition.It is little during to a setting value that the rotating speed of roller is set, and control circuit begins to control the helical cutters backward rotation.Helical cutters forward and backward interval number of times and time are set.
(2) downhole intelligent wax removal instrument of the present utility model is along with winch wire, in the steel wire lower going-into-well.
(3) downhole intelligent wax removal instrument of the present utility model arrives before the wax removal section, waits for the motor start-up time.
(4) when arriving dc motor during start-up time, downhole intelligent wax removal instrument of the present utility model begins the wax removal while going into the well; Pulling by steel wire removes repeatedly repeatedly.
(5) the dc motor dwell time of downhole intelligent wax removal instrument of the present utility model arrives, and wax removal finishes.
(6) pull-up steel wire trips out downhole intelligent wax removal instrument of the present utility model.
In being lowered to process, roller is close to the borehole wall and along with the wax removal instrument is lowered to and rolls, the roller that is provided with that staggers can more effectively play the effect of setting upright; In addition, be lowered in the process, after the roller rotary speed reduces, the helical cutters rotating speed also decreases, and when rotating speed was reduced to a setting value, rotary cutter changed the direction of rotation rotation, carry out repeatedly with this, thereby the oily wax removing that will block continues to carry out forward the wax removal operation.
The above only is the schematic specific embodiment of the utility model, is not in order to limit scope of the present utility model.Any those skilled in the art, equivalent variations of having done under the prerequisite that does not break away from design of the present utility model and principle and modification all should belong to the scope that the utility model is protected.
Claims (10)
1. a downhole intelligent wax removal instrument is characterized in that, this wax removal instrument includes rope socket, power controller, weighted lever and helical cutters; Described rope socket, power controller, weighted lever are fixedly connected sequentially; Be axially arranged with power output shaft along this wax removal instrument in the described power controller, axially be pivoted with turning cylinder along it in the described weighted lever, described power output shaft is fixedlyed connected with described turning cylinder; In the other end of the described relatively power controller of described weighted lever, described turning cylinder is fixedlyed connected with described helical cutters; Outstanding outer its sidewall is provided with a plurality of rollers on the described weighted lever, and described roller is provided with speed probe, and the holding wire of described speed probe is connected with described power controller.
2. downhole intelligent wax removal instrument as claimed in claim 1 is characterized in that, the 120 ° of distributions at interval on the axial direction of vertical this wax removal instrument in described weighted lever sidewall upper edge of described roller, and described roller number is six.
3. downhole intelligent wax removal instrument as claimed in claim 2 is characterized in that, the setting of staggering vertically on described weighted lever sidewall of described roller.
4. downhole intelligent wax removal instrument as claimed in claim 1 is characterized in that, is that screw thread or bayonet lock connect between described rope socket, power controller, the weighted lever and between the described power output shaft, turning cylinder, rotary cutter.
5. downhole intelligent wax removal instrument as claimed in claim 1 is characterized in that, is provided with dc motor in the described power controller.
6. downhole intelligent wax removal instrument as claimed in claim 5 is characterized in that described power controller also includes the control circuit that sends the different rotary signal according to the rotation speed change of described roller to described dc motor.
7. downhole intelligent wax removal instrument as claimed in claim 6 is characterized in that described control circuit includes single-chip microcomputer.
8. as claim 5 or 6 described downhole intelligent wax removal instrument, it is characterized in that, also be provided with power supply in the described power controller.
9. downhole intelligent wax removal instrument as claimed in claim 8 is characterized in that described power supply is a battery.
10. downhole intelligent wax removal instrument as claimed in claim 1 is characterized in that the power output shaft of described power controller and the power transmission shaft of weighted lever are equipped with hermetically-sealed construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201991446U CN202081865U (en) | 2011-06-13 | 2011-06-13 | Underground intelligent paraffin removal instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201991446U CN202081865U (en) | 2011-06-13 | 2011-06-13 | Underground intelligent paraffin removal instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202081865U true CN202081865U (en) | 2011-12-21 |
Family
ID=45342501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201991446U Expired - Lifetime CN202081865U (en) | 2011-06-13 | 2011-06-13 | Underground intelligent paraffin removal instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202081865U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781492A (en) * | 2016-04-05 | 2016-07-20 | 中国石油天然气股份有限公司 | Electric remotely-controlled rotary paraffin scraper |
-
2011
- 2011-06-13 CN CN2011201991446U patent/CN202081865U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781492A (en) * | 2016-04-05 | 2016-07-20 | 中国石油天然气股份有限公司 | Electric remotely-controlled rotary paraffin scraper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111221 |
|
| CX01 | Expiry of patent term |