CN102661132A - Gas well swabbing car - Google Patents
Gas well swabbing car Download PDFInfo
- Publication number
- CN102661132A CN102661132A CN2012101389126A CN201210138912A CN102661132A CN 102661132 A CN102661132 A CN 102661132A CN 2012101389126 A CN2012101389126 A CN 2012101389126A CN 201210138912 A CN201210138912 A CN 201210138912A CN 102661132 A CN102661132 A CN 102661132A
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- wire rope
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- screw rod
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Abstract
The invention belongs to a gas well swabbing car, which is characterized by at least comprising a chassis truck; a steel wire rope roller unit is fixed on the chassis truck; a winding top sheave is fixed at the upper end (of a well mouth) through a fixing frame; the steel wire rope roller unit and a swabbing tool are connected with a steel wire rope through the winding top sheave; a steel wire rope metering wheel is mounted near the winding top sheave, so that the steel wire rope metering wheel is required to be contacted with the steel wire rope all along, and cannot have a sliding phenomenon; a steel wire rope shaft type tension meter is arranged on the winding top sheave, and cannot be influenced by an environment temperature by using a shaft type sensor; the steel wire rope shaft type tension meter is electrically connected with a processing unit through a tension signal wire; the steel wire rope metering wheel is electrically connected with the processing unit through a steel wire length signal wire; and the steel wire rope roller unit is electrically connected with an electric control wire through a hydraulic motor. On one hand, the processing unit collects a steel wire length signal and a tension signal through digital collection, and collected data is processed through a computer; and on the other hand, the computer controls the steel wire rope roller unit to work.
Description
Technical field
The invention belongs to petroleum gas gas well fluid-discharge technology.A kind of gas well swabbing car of definitely saying so.
Background technology
The discharge opeing technology of long celebrating low-pressure gas well is a great problem that carries out the gas well exploitation, can not automatic drain after most constructions; Need to adopt pumping discharge opeing technology to solve; This technology is because of it has in time, characteristics fast and efficiently, is many other discharge opeing modes, as; Coiled tubing, technologies such as gas lift valve can't substitute.Yet also there is following problem in the pumping fluid-discharge technology:
1. adopt tractor hoist or double roller tube working rig to carry out the pumping discharge opeing, mainly have the problem of the following aspects, bring certain potential safety hazard to swabbing operation.
(1) adopt machine driving, aerodynamic brake, it is big to manipulate difficulty, after operating personnel need professional training, could be on duty.
(2) degree of depth of swab line in the well is difficult to accurately control, crashing into the crown often occurs, it is dark excessively to be lowered to liquid level, and wire rope is made knob and scrapped the maloperation that overload is broken wire rope when transferring wire rope.
2. the pumping depth of tractor hoist can not satisfy the requirement of the gas well swabbing degree of depth less than the pumping degree of depth of gas well, does not reach deeply when requiring when taking out, and need carry out the gaslift lifting rate, has increased working procedure.
3. pumping technology is long main technique technology of celebrating underground work company, and this technology can't satisfy the requirement of digitized record at present.Wire rope does not have tensiometer, no wire rope degree of depth metering, and the metering of extraction liquid measure, the mode that adopts big jar to measure is discharged liquid to oil-gas Layer and is measured, and can not adapt to the requirement of current engineering development.
4. when tractor hoist is used for swabbing operation, can not carry out round trip again, influence other construction manufacturing schedule, the pumping depth of tractor hoist is less than the discharge opeing degree of depth of gas well requirement in addition.Miscellaneous equipment that carries out around producing well and personnel swabbing operation such as all stop work.
Summary of the invention
The objective of the invention is to utilize gas well swabbing discharge opeing technology, invent a kind of gas well swabbing discharge opeing that is applicable to, automaticity is high; Safe and reliable a kind of gas well swabbing car with pumping discharge opeing technology, frees from present formation testing gas operation team; Carry out swabbing operation specially; Reach specialized, the division of labor that becomes more meticulous promotes the development of gas well swabbing technology.
The objective of the invention is to realize like this, a kind of gas well swabbing car is characterized in that: comprise at least: chassis; Chassis is wire rope roller tube unit fixedly; Be fixed with day around pulley through fixed mount in the upper end of well head, wire rope roller tube unit and pumping instrument are through being connected around the top sheave wire rope, and the wire rope measurement wheel is installed near top sheave; Require the wire rope measurement wheel to contact with wire rope all the time, the wire rope measurement wheel can not have skidding; Wire rope shaft type tensiometer is being arranged on top sheave, adopting the shaft type sensor, can not receive the influence of environment temperature; Wire rope shaft type tensiometer is electrically connected with processing unit through the tension signal line; The wire rope measurement wheel is electrically connected with processing unit through the steel wire length holding wire; Wire rope roller tube unit is electrically connected through the hydraulic motor electrical control lines; Carry out digital collection steel wire length signal and tension signal collection by processing unit on the one hand, the data after the collection are through Computer Processing, on the other hand by computer control wire rope roller tube cell operation.
Described wire rope roller tube unit comprises at least: the roller tube stent, and to level tube stent with a roller and be the frame construction that the upper end is opened wide, the roller tube is connected the bottom of leveling tube stent with a roller through axle, and a positive and negative threaded screw rod is parallel to the roller tube, is connected the upper end of roller tube stent simultaneously; Positive left-hand thread is arranged in the middle of the positive and negative threaded screw rod; Slide block set is on the positive left-hand thread of positive and negative threaded screw rod; Wire rope one end is connected with slide block; The other end is connected with the roller tube, and the roller tube shaft extension of roller tube is connected through gear mechanism with the positive and negative threaded screw rod that stretches to roller tube stent outer end to roller tube stent outer end, and the roller tube axle of roller tube connects the electric-controlled hydraulic motor through the double reduction planetary gear.
Described gear mechanism is made up of first travelling gear and second travelling gear, and first travelling gear is connected with positive and negative threaded screw rod axle, and second travelling gear is connected with roller tube axle.
Second travelling gear on the described roller tube axle drives first travelling gear and rotates, and first travelling gear drives positive and negative threaded screw rod rotation; Slide block pin is arranged on the slide block, and the length of the slide block pin on the guide runner is greater than its width, and anti-limited slip block gets into reverse thread in advance through positive left-hand thread infall the time; Be engaged in the screw; When positive and negative threaded screw rod rotated, driving sliding block was slided on positive and negative threaded screw rod, when slide block runs to positive left-hand thread two ends, return automatically, and positive and negative threaded screw rod still keeps the rotation mode of forward or reverse constant, reached the requirement of row's rope.
The external diameter of described right-and-left threaded pitch h=wire rope.
All there is gathering sill at described right-and-left threaded two ends.
Advantage of the present invention is:
Take out and to reach 3500 meters deeply, satisfy the dark requirement of taking out of gas well.Can be to the special tool of gas well swabbing, like the blowout prevention box, preventer, shut-in valve are realized controlling, and reach the requirement of pumping sealing and long-range closing well.Can realize the anti-top of going up of wire rope, the anti-knob of beating, anti-breaking, anti-ultra four dark anti-functions.Realization is dark to taking out, submergence, and the digitlization metering and the data recording of extracting liquid out are estimated each pumping efficient, so that improve in good time.Running job does not need the cooperation of formation testing mechanism of qi group alone, satisfies wet well, arranges the pumping requirement of not drifting.
Description of drawings
Below in conjunction with the embodiment accompanying drawing the present invention is further specified:
Fig. 1 is an embodiment of the invention schematic diagram;
Fig. 2 is roller tube drive controlling and rope winding jib fundamental diagram.
Among the figure, 1, chassis; 2, wire rope roller tube unit; 3, wire rope measurement wheel; 4, around top sheave; 5, wire rope shaft type tensiometer; 6, tension signal line; 7, steel wire length holding wire; 8, analog and digital signal converting unit; 9, computer; 10, wire rope; 11, well head; 12, electric-controlled hydraulic motor; 13, hydraulic motor electrical control lines; 14, pumping instrument; 201, roller tube stent; 202, positive and negative threaded screw rod; 203, positive left-hand thread; 204, slide block pin; 205, slide block; 206, first travelling gear; 207, second travelling gear; 208, electric-controlled hydraulic motor; 209, double reduction planetary gear; 210, roller tube axle; 211, wire rope; 212, roller tube.
The specific embodiment
As shown in Figure 1, a kind of gas well swabbing car comprises at least: chassis 1; Chassis 1 is wire rope roller tube unit 2 fixedly; Upper end at well head 11 is fixed with around top sheave 4 through fixed mount, and wire rope roller tube unit 2 and pumping instrument 14 are through being connected around top sheave 4 wire rope 10, and wire rope measurement wheel 3 is installed near top sheave 4; Require wire rope measurement wheel 3 to contact with wire rope 10 all the time, wire rope measurement wheel 3 can not have skidding.Wire rope shaft type tensiometer 5 is being arranged on top sheave 4, adopting the shaft type sensor, can not receive the influence of environment temperature.Wire rope shaft type tensiometer 5 is electrically connected with processing unit through tension signal line 6; Wire rope measurement wheel 3 is electrically connected with processing unit through steel wire length holding wire 7; Wire rope roller tube unit 2 is electrically connected through hydraulic motor electrical control lines 13; Carry out digital collection steel wire length signal and tension signal by processing unit on the one hand, the data after the collection are through after the Computer Processing, and the row automation is controlled.On the other hand by unit 2 work of computer control wire rope roller tube.
Processing unit comprises; Analog and digital signal converting unit 8 and computer 9; Or work controller.The data-signal of crossing through Computer Processing converts analog signal to through simulation and data signal conversion device 8 again, is connected to electric-controlled hydraulic motor 12 through the hydraulic motor electrical control lines, carries out automation control.
As shown in Figure 2, wire rope roller tube unit comprises: roller tube stent 201 at least; Roller tube stent 201 is the frame construction that the upper end is opened wide; Roller tube 212 is connected the bottom of leveling tube stent 201 with a roller through axle, and a positive and negative threaded screw rod 202 is parallel to roller tube 212, is connected the upper end of roller tube stent 201 simultaneously; In the middle of the positive and negative threaded screw rod 202 positive left-hand thread 203 is arranged; Slide block 205 is enclosed within on the positive left-hand thread 203 of positive and negative threaded screw rod 202; Wire rope 211 1 ends are connected with slide block 205; The other end is connected with roller tube 212, and the roller tube axle 210 of roller tube 212 stretches to roller tube stent 201 outer ends and the positive and negative threaded screw rod that stretches to roller tube stent 201 outer ends 202 and is connected through gear mechanism, levels a roller tube axle 210 of tins 212 with a roller and passes through double reduction planetary gear 209 connection electric-controlled hydraulic motors 208.
Gear mechanism is made up of first travelling gear 206 and second travelling gear 207, and first travelling gear 206 is connected with 202 of positive and negative threaded screw rods, and second travelling gear 207 is connected with roller tube axle 210.
Second travelling gear 207 that is installed on the roller tube axle 210 drives 206 rotations of first travelling gear, and first travelling gear 206 drives positive and negative threaded screw rod 202 rotations; Slide block pin 204 is arranged on the slide block 205, and the length of the slide block pin 204 on the guide runner is greater than its width, and anti-limited slip block gets into reverse thread in advance through positive left-hand thread infall the time.Be engaged in the screw; When positive and negative threaded screw rod 202 rotates; Driving sliding block 205 is slided on positive and negative threaded screw rod 202, when slide block 205 runs to positive left-hand thread two ends, returns automatically; And positive and negative threaded screw rod 202 still keeps the rotation mode of forward or reverse constant, thereby reaches the requirement of row's rope.The pitch of positive left-hand thread 203 requires: the external diameter of pitch h=wire rope.All there is gathering sill at the two ends of positive left-hand thread 203, and its track is the some of ellipse first shape, and guide track is with just return must smooth the connection between the screw thread.
Work of the present invention is divided into four processes:
(1) transfer wire rope: when transferring wire rope, roller tube 212 counter-rotatings of electric-controlled hydraulic motor driving steel wire rope roller tube unit are gone up G.I.H with wire rope from the roller tube.When finding to be lowered in the process, the tension force that wire rope occurs explains that then the phenomenon that is hampered appears in wire rope in being lowered to process during less than himself weight, and the wire rope that should in time stop is beaten the knob phenomenon otherwise wire rope can take place.
(2) when the pumping instrument got into liquid level, the weight of wire rope can reduce immediately, at this moment; Can judge that wire rope has got into liquid level, steel wire rope tension reduces, and the depth value of this point is carried out record as the degree of depth of liquid level; Prevent ultra dark judgement,, then stop automatically transferring when wire rope is lowered to when meeting the requirements of submergence; Wait for artificial treatment, propose pumping on carrying out.
(3) when in the process carried, when swab was met card, then the tensiometer of wire rope can show value of thrust, when value of thrust during near the rupture pull force of wire rope, then stop pumping automatically, the wait personnel handle, and prevent wire rope is broken, and cause unnecessary accident.
(4) if pumping is normal, in the time of near swab is up to well head, can test out the position of swab at well head through the wire rope recorder, through the timely stop pumping of the control of computer, prevent that swab from going out well head, last top day coaster causes the crashing into the crown accident.
Claims (6)
1. gas well swabbing car; It is characterized in that: comprise at least: chassis (1); Chassis (1) is wire rope roller tube unit (2) fixedly; Upper end at well head (11) is fixed with around top sheave (4) through fixed mount, and wire rope roller tube unit (2) and pumping instrument (14) are through being connected around top sheave (4) wire rope (10), and wire rope measurement wheel (3) is installed near top sheave (4); Require wire rope measurement wheel (3) to contact with wire rope (10) all the time, wire rope measurement wheel (3) can not have skidding; Wire rope shaft type tensiometer (5) is being arranged on top sheave (4), adopting the shaft type sensor, can not receive the influence of environment temperature; Wire rope shaft type tensiometer (5) is electrically connected with processing unit through tension signal line (6); Wire rope measurement wheel (3) is electrically connected with processing unit through steel wire length holding wire (7); Wire rope roller tube unit (2) is electrically connected through hydraulic motor electrical control lines (13); Carry out digital collection steel wire length signal and tension signal collection by processing unit on the one hand, the data after the collection are through Computer Processing, on the other hand by computer control wire rope roller tube unit (2) work.
2. a kind of gas well swabbing car according to claim 1; It is characterized in that: described wire rope roller tube unit (2); At least comprise: roller tube stent (201), roller tube stent (201) is the frame construction that the upper end is opened wide, and roller tube (212) is connected the bottom of roller tube stent (201) through axle; One positive and negative threaded screw rod (202) is parallel to roller tube (212), is connected the upper end of roller tube stent (201) simultaneously; Positive left-hand thread (203) is arranged in the middle of the positive and negative threaded screw rod (202); Slide block (205) is enclosed within on the positive left-hand thread (203) of positive and negative threaded screw rod (202); Wire rope (211) one ends are connected with slide block (205); The other end is connected with roller tube (212); The roller tube axle (210) of roller tube (212) stretches to roller tube stent (201) outer end and is connected through gear mechanism with the positive and negative threaded screw rod (202) that stretches to roller tube stent (201) outer end, and the roller tube axle (210) of roller tube (212) connects electric-controlled hydraulic motor (208) through double reduction planetary gear (209).
3. a kind of gas well swabbing car according to claim 2; It is characterized in that: described gear mechanism is made up of first travelling gear (206) and second travelling gear (207); First travelling gear (206) is connected with positive and negative threaded screw rod (202) axle, and second travelling gear (207) is connected with roller tube axle (210).
4. a kind of gas well swabbing car according to claim 2; It is characterized in that: second travelling gear (207) on the described roller tube axle (210) drives first travelling gear (206) and rotates; First travelling gear (206) drives positive and negative threaded screw rod (202) rotation; Slide block pin (204) is arranged on the slide block (205), and the length of the slide block pin (204) on the guide runner is greater than its width, and anti-limited slip block gets into reverse thread in advance through positive left-hand thread infall the time; Be engaged in the screw; When positive and negative threaded screw rod (202) rotates; Driving sliding block (205) goes up at positive and negative threaded screw rod (202) and slides; When slide block (205) runs to positive left-hand thread two ends; Automatically return, and positive and negative threaded screw rod (202) still keeps the rotation mode of forward or reverse constant, reach the requirement of row's rope.
5. a kind of gas well swabbing car according to claim 2 is characterized in that: the external diameter of the pitch h=wire rope of described positive left-hand thread (203).
6. a kind of gas well swabbing car according to claim 2 is characterized in that: all there is gathering sill at the two ends of described positive left-hand thread (203).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210138912.6A CN102661132B (en) | 2012-05-04 | 2012-05-04 | Gas well swabbing car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210138912.6A CN102661132B (en) | 2012-05-04 | 2012-05-04 | Gas well swabbing car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102661132A true CN102661132A (en) | 2012-09-12 |
| CN102661132B CN102661132B (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210138912.6A Active CN102661132B (en) | 2012-05-04 | 2012-05-04 | Gas well swabbing car |
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| Country | Link |
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| CN (1) | CN102661132B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850658A (en) * | 2014-02-14 | 2014-06-11 | 上海大学 | Intelligent electric drifting device and intelligent electric drifting method |
| CN104818950A (en) * | 2015-05-08 | 2015-08-05 | 中国石油集团西部钻探工程有限公司 | Swabbing truck derrick workbench |
| CN109723431A (en) * | 2018-11-22 | 2019-05-07 | 中国石油天然气集团有限公司 | One kind can survey tension producing well pulley gear |
| CN111119805A (en) * | 2020-01-03 | 2020-05-08 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Automatic oil well swabbing method, device and system |
| CN113356783A (en) * | 2021-07-12 | 2021-09-07 | 西安兴辉锐油气开发科技有限公司 | Closed gas well drainage sled |
| CN114673491A (en) * | 2022-03-09 | 2022-06-28 | 西安聚盛石油科技有限公司 | Method for judging and automatically processing resistance and card encountering of swabbing system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1457961A (en) * | 1973-04-20 | 1976-12-08 | Dresser Ind | Well derricks |
| CN2032246U (en) * | 1988-03-11 | 1989-02-08 | 梁明喜 | Wire arranging system with auto error complement |
| CN2288266Y (en) * | 1997-03-07 | 1998-08-19 | 河南石油勘探局南阳石油机械厂 | Movable oil pumping vehicle |
| CN2773301Y (en) * | 2004-02-10 | 2006-04-19 | 中国石化集团江汉石油管理局江汉石油机械厂 | Pumping and well-repairing operation vehicle in oil-field with separated rig |
| CN2878322Y (en) * | 2006-02-25 | 2007-03-14 | 长庆石油勘探局 | Hydraulic rope rewind drum winch |
| CN201943668U (en) * | 2010-12-20 | 2011-08-24 | 张惠 | Control device of oil extraction vehicle |
-
2012
- 2012-05-04 CN CN201210138912.6A patent/CN102661132B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1457961A (en) * | 1973-04-20 | 1976-12-08 | Dresser Ind | Well derricks |
| CN2032246U (en) * | 1988-03-11 | 1989-02-08 | 梁明喜 | Wire arranging system with auto error complement |
| CN2288266Y (en) * | 1997-03-07 | 1998-08-19 | 河南石油勘探局南阳石油机械厂 | Movable oil pumping vehicle |
| CN2773301Y (en) * | 2004-02-10 | 2006-04-19 | 中国石化集团江汉石油管理局江汉石油机械厂 | Pumping and well-repairing operation vehicle in oil-field with separated rig |
| CN2878322Y (en) * | 2006-02-25 | 2007-03-14 | 长庆石油勘探局 | Hydraulic rope rewind drum winch |
| CN201943668U (en) * | 2010-12-20 | 2011-08-24 | 张惠 | Control device of oil extraction vehicle |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850658A (en) * | 2014-02-14 | 2014-06-11 | 上海大学 | Intelligent electric drifting device and intelligent electric drifting method |
| CN103850658B (en) * | 2014-02-14 | 2016-03-30 | 上海大学 | Intelligent electric drifting device adopting and method |
| CN104818950A (en) * | 2015-05-08 | 2015-08-05 | 中国石油集团西部钻探工程有限公司 | Swabbing truck derrick workbench |
| CN109723431A (en) * | 2018-11-22 | 2019-05-07 | 中国石油天然气集团有限公司 | One kind can survey tension producing well pulley gear |
| CN109723431B (en) * | 2018-11-22 | 2022-10-04 | 中国石油天然气集团有限公司 | Measurable tension well pulley gear |
| CN111119805A (en) * | 2020-01-03 | 2020-05-08 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Automatic oil well swabbing method, device and system |
| CN111119805B (en) * | 2020-01-03 | 2023-08-18 | 中国石油天然气集团有限公司 | Automatic pumping method, device and system for oil well |
| CN113356783A (en) * | 2021-07-12 | 2021-09-07 | 西安兴辉锐油气开发科技有限公司 | Closed gas well drainage sled |
| CN114673491A (en) * | 2022-03-09 | 2022-06-28 | 西安聚盛石油科技有限公司 | Method for judging and automatically processing resistance and card encountering of swabbing system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102661132B (en) | 2014-12-17 |
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