CN202810765U - Pressure lowering device - Google Patents
Pressure lowering device Download PDFInfo
- Publication number
- CN202810765U CN202810765U CN201220451954.0U CN201220451954U CN202810765U CN 202810765 U CN202810765 U CN 202810765U CN 201220451954 U CN201220451954 U CN 201220451954U CN 202810765 U CN202810765 U CN 202810765U
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- China
- Prior art keywords
- driving wheel
- cable
- contact roller
- handwheel
- frame
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Abstract
The utility model discloses a pressure lowering device, which is used for lowering a steel wire or a cable into an oil-gas well. The lowering device comprises a rack supported on a blowout prevention pipe. The rack is supported on the blowout prevention pipe. A hand wheel, a driving wheel, a pressing wheel and a hydraulic mechanism are arranged on the rack. The hand wheel and the driving wheel are arranged on the rack through bearings, and are in synchronous drive. The pressing wheel and the driving wheel are correspondingly arranged on the same lateral surface of the rack. The pressing wheel is arranged on a fork-shaped bracket on the end part of a piston of the hydraulic mechanism through a bearing. A space formed between the pressing wheel and the driving wheel is used for clamping the steel wire or the cable. A hydraulic cylinder of the hydraulic mechanism is fixedly arranged on the rack. Clamping friction force on the steel wire or the cable on a tool string/tool is converted into torsion through the driving wheel, so that the steel wire or the cable overcomes the friction force, and is forcedly lowered into the well without an additional counterweight. The lowering device has the characteristics of rational design, simple structure, low manufacture cost, convenience for operation, high operation efficiency, safety, reliability, high practicability and the like.
Description
Technical field
The utility model relates to the auxiliary conveying appliance of logger string/instrument, a kind of delivering device with pressure specifically, and as veer away in Oil/gas Well steel wire or cable, it is particularly suitable for the operations such as steel wire well testing, cable well testing or production logging and uses.
Background technology
There are the high characteristics of well head pressure in high-pressure gas well, and is because these characteristics, in the operation of high-pressure gas well, difficult during the logger string that veers away in the well/instrument.This be because, be connected to steel wire on instrument string/instrument or cable at the moment that veers away (namely from static to operation), need larger gravity to overcome the large stiction that environmental unit brings around rubber packing, the tube wall etc.For this reason, traditional method is that increasing enters the counterweight of well instrument string/instrument, usually needs increase by 20～30%, forms larger gravity with this.Though the method can effectively overcome the stiction that steel wire or cable are subject to, but the increase of counterweight will be the also accordingly increase of length into well instrument string/instrument, this will cause the height of shaft mouth anti-blowout pipe also will along with increase, bring larger difficulty for on-the-spot installation exercise; Simultaneously, the length that enters well instrument string/instrument increases, and the possibility that causes well instrument string/instrument to be hampered, to meet card in well increases, and this has directly increased the security risk of whole operation.
In order to solve an above-mentioned difficult problem, the personnel that are engaged in the oil gas drilling have researched and developed various about entering the apparatus for displaying of well instrument string cable, these achievements in research are appeared in the newspapers on public publication repeatly, Chinese patent literature disclosed " reducing cable belt pressing well lowering conveyer " (publication number: CN 101196112 for example, open day: on June 11st, 2008), this conveying device is comprised of actuating unit, transmission mechanism and twist mechanism, combination by three kinds of mechanisms has solved the problem without instrument and reducing cable belt pressing well lowering, has simplified the well logging construction sequence; Periodical disclosed " pressure transferring equipment of well logging cable running " (" oil instrument " and for example, 03 phase in 2004), this conveyer utilizes motor as power, by machine driving motor power is flowed to a pair of squeegee roller, rely on the frictional force between squeegee roller and the logging cable to force cable is transferred.Though these technology can effectively veer away into well instrument string/instrument, it has the defectives such as complex structure, manufacturing cost height, troublesome poeration.
Summary of the invention
The purpose of this utility model is: for above-mentioned the deficiencies in the prior art, under the prerequisite that is not added to well instrument string/instrument counterweight, provide a kind of simple in structure, cheap for manufacturing cost, easy to operate delivering device with pressure.
The technical solution adopted in the utility model is: a kind of delivering device with pressure, as in Oil/gas Well, veer away steel wire or cable, described apparatus for displaying comprises the frame that is supported on the lubricator, described frame support is equipped with handwheel, driving wheel, contact roller and hydraulic mechanism on the described frame on lubricator; Described handwheel and driving wheel are installed on the frame by bearing, handwheel and driving wheel Synchronous Transmission; Described contact roller is corresponding with driving wheel to be arranged on the same side of frame, and contact roller is installed in by bearing on the end bow of hydraulic mechanism piston, and the space that consists of between contact roller and the driving wheel is as clamped wire or cable; The hydraulic cylinder of described hydraulic mechanism is fixed on the frame.
Described contact roller is with the annular groove that is used as at least clamped wire or cable that upwards is respectively equipped with in week of driving wheel, and the annular groove of contact roller and driving wheel is mutually corresponding.
Described frame is made of Connection Block, column and crossbeam, is " Z " shape; Described Connection Block is connected with lubricator, and Connection Block is provided with into well head; Described crossbeam is as arranging handwheel, driving wheel, contact roller and hydraulic mechanism.
On the space that consists of between described contact roller and the driving wheel and the lubricator to enter well head corresponding.
Described hydraulic cylinder connects handlance by hydraulic line.
Described handwheel is arranged in the frame side opposing with driving wheel, and handwheel is corresponding with driving wheel, and handwheel is as driving driving wheel.
The week of described handwheel upwards is provided with at least one annular groove, and this annular groove is as twining rope or belt.
Be set with back-moving spring on the piston in the described hydraulic cylinder.
The beneficial effects of the utility model are: above-mentioned delivering device changes into torsion with the clamping frictional force that the steel wire on instrument string/instrument or cable are subject to by driving wheel, overcome the stiction that steel wire or cable are subject to, put into well under forcing, need not to increase in addition counterweight, avoided entering a series of negative consequences that well instrument string/instrument brings because increasing counterweight, have reasonable in design, simple in structure, cheap for manufacturing cost, easy to operate, operating efficiency is high, the characteristics such as safe and reliable, practical.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the top view of Fig. 1.
Code name implication among the figure: 1-handwheel; 2-driving wheel; 3-contact roller; 4-support; 5-piston; 6-hydraulic cylinder; 7-hydraulic line; 8-1-Connection Block; 8-2-column; 8-3-crossbeam; 8-4-enter well head; 9-back-moving spring.
The specific embodiment
Referring to Fig. 1 and Fig. 2: the utility model is as veer away in Oil/gas Well steel wire or cable.The utility model comprises frame, and this frame is made of Connection Block 8-1, column 8-2 and crossbeam 8-3, and integral body is " Z " shape.Wherein, Connection Block 8-1 is as being connected with the top of lubricator, and what Connection Block 8-1 was provided with instrument string/instrument enters well head 8-4, this enter on well head and the lubricator to enter well head corresponding; Column 8-2 tilts to be supported between Connection Block 8-1 and the crossbeam 8-3, crossbeam 8-3 is supported on the top of Connection Block 8-1; Crossbeam 8-3 is as arranging handwheel 1, driving wheel 2, contact roller 3 and hydraulic mechanism.
Handwheel 1 and driving wheel 2 are installed on the crossbeam 8-3 by bearing, handwheel 1 is arranged in the crossbeam 8-3 side opposing with driving wheel 2, handwheel 1 is corresponding with driving wheel 2, handwheel 1 is as driving driving wheel 2, week at handwheel 1 upwards is provided with annular groove one, this annular groove is as twining rope (such as coir rope) or belt (such as belt), and the rope of winding or the length of belt should adapt with the height of lubricator, drives driving wheel 2 synchronous rotaries by pulling rope or belt.The week of driving wheel 2 upwards is provided with annular groove one, this annular groove is as clamped wire or cable, driving wheel 2 is in rotation, by surface and the frictional force that is added the generation of the steel wire held or cable, driving steel wire or cable moves downward, enter well, soon steel wire or cable are activated the frictional force of taking turns 2 surfaces and change into torsion, behind steel wire or cable into well certain depth, rely on the self gravitation of well instrument string/instrument, and the self gravitation that enters well steel wire or cable overcomes the stiction that steel wire or cable are subject to, and continues into well under delivering device auxiliary need not.
Contact roller 3 and driving wheel 2 be corresponding to be arranged on the same side of crossbeam 8-3, and contact roller 3 directly is not connected with crossbeam 8-3, but is installed on the bow 4 by bearing, and this bow 4 is fixed on the end of the piston 5 of hydraulic mechanism.Upwards be provided with the annular groove that is used as together clamped wire or cable the week of contact roller 3, or while clamped wire and cable, the annular groove on the contact roller 3 should be corresponding with the annular groove on the driving wheel 2.Contact roller 3 is under the effect of hydraulic mechanism, draw close driving wheel 2, contact roller 3 and driving wheel 2 clamp steel wire or cable by the space of the annular groove formation of mutual correspondence, or while clamped wire and cable, contact roller 3 does not directly contact with driving wheel 2, if directly contact will increase the frictional resistance of driving wheel 2.
The hydraulic cylinder 6 of hydraulic mechanism is fixed on the frame, and hydraulic cylinder 6 is connected with ground handlance by hydraulic line 7, and to hydraulic cylinder 6 pressurizations, the length of hydraulic line 7 should adapt with the height of lubricator by handlance.One end of piston 5 extends in the hydraulic cylinder 6, and be set with back-moving spring 9 in this extension, when instrument string/instrument relies on self gravitation, and when entering well steel wire or cable and relying on self gravitation to continue into well, after earth pressure release in the hydraulic cylinder 6 falls, back-moving spring 9 drives piston 5 and resets, and piston 5 drives contact roller 3, and the spacing of contact roller 3 and driving wheel 2 is widened.
The clamped wire that consists of between above-mentioned contact roller 3 and the driving wheel 2 or the space of cable should with Connection Block 8-1 on enter well head corresponding (namely with lubricator on to enter well head corresponding), if on the clamped wire that consists of between contact roller 3 and the driving wheel 2 or the space of cable and the Connection Block 8-1 to enter well head not corresponding, enter well head 8-4 but depart from the Connection Block 8-1, although the torsion that can rely on driving wheel 2 to produce forces to veer away steel wire or cable, resistance will increase.
Annular groove road on above-mentioned handwheel 1, driving wheel 2 and the contact roller 3 is several to be got according to specific design requires, and is not particular value, just can reach the purpose of this utility model but one annular groove is set basically.
Because the steel wire that veers away in the utility model long service or the diameter specifications of cable are different, in order to reach the best effect that veers away, driving wheel 2 and contact roller 3 can be arranged to plurality of specifications (mainly being the annular groove size on driving wheel 2 and the contact roller 3), in order to can in time change.
Claims (8)
1. delivering device with pressure, as in Oil/gas Well, veer away steel wire or cable, described apparatus for displaying comprises the frame that is supported on the lubricator, it is characterized in that: handwheel (1), driving wheel (2), contact roller (3) and hydraulic mechanism are installed on the described frame; Described handwheel (1) and driving wheel (2) are installed on the frame by bearing, handwheel (1) and driving wheel (2) Synchronous Transmission; Described contact roller (3) is corresponding with driving wheel (2) to be arranged on the same side of frame, contact roller (3) is installed in by bearing on the end bow (4) of hydraulic mechanism piston (5), and the space that consists of between contact roller (3) and the driving wheel (2) is as clamped wire or cable; The hydraulic cylinder of described hydraulic mechanism (6) is fixed on the frame.
2. described delivering device with pressure according to claim 1, it is characterized in that: described contact roller (3) and driving wheel (2) upwards be respectively equipped with at least one annular groove as clamped wire or cable week, the annular groove of contact roller (3) and driving wheel (2) is correspondence mutually.
3. described delivering device with pressure according to claim 1, it is characterized in that: described frame is made of Connection Block (8-1), column (8-2) and crossbeam (8-3), is " Z " shape; Described Connection Block (8-1) is connected with lubricator, and Connection Block (8-1) is provided with into well head (8-4); Described crossbeam (8-3) is as handwheel (1), driving wheel (2), contact roller (3) and hydraulic mechanism are installed.
4. described delivering device with pressure according to claim 1 is characterized in that: on the space that consists of between described contact roller (3) and the driving wheel (2) and the lubricator to enter well head corresponding.
5. described delivering device with pressure according to claim 1, it is characterized in that: described hydraulic cylinder (6) connects handlance by hydraulic line (7).
6. described delivering device with pressure according to claim 1, it is characterized in that: described handwheel (1) is arranged in the frame side opposing with driving wheel (2), and handwheel (1) is corresponding with driving wheel (2), and handwheel (1) is as driving driving wheel (2).
7. according to claim 1 or 6 described delivering devices with pressure, it is characterized in that: the week of described handwheel (1) upwards is provided with at least one annular groove, and this annular groove is as twining rope or belt.
8. described delivering device with pressure according to claim 1 is characterized in that: be set with back-moving spring (9) on the piston (5) in the described hydraulic cylinder (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220451954.0U CN202810765U (en) | 2012-09-06 | 2012-09-06 | Pressure lowering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220451954.0U CN202810765U (en) | 2012-09-06 | 2012-09-06 | Pressure lowering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202810765U true CN202810765U (en) | 2013-03-20 |
Family
ID=47869663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220451954.0U Expired - Lifetime CN202810765U (en) | 2012-09-06 | 2012-09-06 | Pressure lowering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202810765U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655915A (en) * | 2014-11-12 | 2016-06-08 | 上海逸讯能源科技有限公司 | Cable boost motor |
| CN107956446A (en) * | 2016-10-17 | 2018-04-24 | 中国石油化工股份有限公司 | A kind of high-pressure well test cable injection device with pressure |
-
2012
- 2012-09-06 CN CN201220451954.0U patent/CN202810765U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655915A (en) * | 2014-11-12 | 2016-06-08 | 上海逸讯能源科技有限公司 | Cable boost motor |
| CN107956446A (en) * | 2016-10-17 | 2018-04-24 | 中国石油化工股份有限公司 | A kind of high-pressure well test cable injection device with pressure |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |