CN205225155U - Multi -functional well head seals blowout preventer - Google Patents
Multi -functional well head seals blowout preventer Download PDFInfo
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- CN205225155U CN205225155U CN201521064156.2U CN201521064156U CN205225155U CN 205225155 U CN205225155 U CN 205225155U CN 201521064156 U CN201521064156 U CN 201521064156U CN 205225155 U CN205225155 U CN 205225155U
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- sliding spool
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Abstract
The utility model relates to a multi -functional well head seals blowout preventer, its include from last to connect gradually down and can supply gland packing on the beam -pumping unit polished rod male, lower gland packing, the main part tubular column reaches connector down, set up the packing and install packing gland in last gland packing, set up packing down under in the gland packing, coaxial fixed mounting valve ball pedestal in the main part tubular column, main part tubular column middle part cross under this valve ball pedestal is provided with valve ball mechanism, this valve ball mechanism includes the beam barrel, the sliding spool, polished rod seat and beam barrel end cover, install the sliding spool in the beam barrel, the sliding spool sets up horizontal plunger spring with the one end of beam barrel, set up the valve ball in the valve ball seat of sliding spool tip, be provided with vertical valve ball spring between valve ball bottom and the valve ball seat, outer end fixing at the sliding spool sets up the polished rod seat. The utility model discloses solved effectively that the beam -pumping unit polished rod takes off absolutely, oil well centering, the corresponding short scheduling problem of polished rod life of mill, horse head and well head partially.
Description
Technical field
The utility model belongs to the well mouth sealing device of extracting device of oil, particularly a kind of multifunctional well head sealing blowout hookup.
Background technology
Blowout preventer of sucker rod is oilfield in workover treatment, the generation promoting in sucker rod process prevent stratum high pressure gas from carrying secretly well kick that crude oil and water may be formed and blowout, is arranged on the box-like sealing device of secure group of well head.At present, due to oil-extractor polish-rod break de-, oil well eccentric wear, horse head misalign to well head, corresponding polished rod short, the intermittent fuel-displaced problem such as dry grinding, high water-cut well caused in application life, and the oil gas of well head all can be caused excessive.Existing sealing device structure is comparatively complicated, as adopted hydraulic principle to control flashboard closedown etc., there is complex structure, the problem not easily manipulated; And its application life is short, airtight and watertight padding Renewal process bothers; And cannot solution be provided for above-mentioned problems.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of multifunctional well head sealing blowout hookup prevented because oil-extractor polish-rod breaks de-, oil well eccentric wear, well head misalign etc. causes oil gas excessive.
The utility model solves its technical problem and is achieved through the following technical solutions:
A kind of multifunctional well head sealing blowout hookup, it is characterized in that: comprise the upper stuffing box that also can insert for oil-extractor polish-rod connected successively from top to bottom, lower stuffing box, main body tubing string and lower connector, packing is set in upper stuffing box and packing gland is installed, in lower stuffing box, lower packing is set, coaxial fixed installation valve ball pedestal in main body tubing string, in the middle part of main body tubing string under this valve ball pedestal, right-angled intersection is provided with valve ball mechanism, this valve ball mechanism comprises beam barrel, sliding spool, polished rod seat and beam barrel end cap, in beam barrel, sliding spool is installed, one end of sliding spool and beam barrel arranges horizontal plug spring, in the valve ball seat of sliding spool end, valve ball is set, longitudinal valve ball spring is provided with bottom valve ball and between valve ball seat, polished rod seat is fixedly installed in the outer end of sliding spool.
And be fixed with a bearing pin bottom the beam barrel of described valve ball mechanism, this bearing pin one end goed deep in beam barrel is embedded in the made keyway in described sliding spool bottom.
And, described beam barrel is outside equipped with the initial positioning mechanism of sliding spool, this initial positioning mechanism is made up of stop position pin seat, setscrew nut and stop position pin, stop position pin seat is packed in the outer wall of beam barrel, and stop position pin is installed by setscrew nut and stretched in beam barrel and contact in sliding spool outer wall.
And, be connected by fixing swivel nut between described main body tubing string with lower stuffing box, and main body tubing string, be between lower stuffing box with fixing swivel nut and be threaded, and be reverse thread connection; The upper end of lower stuffing box is shaped with the pressure ring pressing down described lower packing, leaves and press down space between the bottom of lower stuffing box and main body tubing string upper end.
And, be fixedly mounted with rotating nut at the wall coaxial of lower stuffing box, adopt between this rotating nut and lower stuffing box outer wall and stir jackscrew and carry out radial servo-actuated installation.
And, described lower connector is eccentric lower connector, the lower connector of this bias and the bottom of main body tubing string are that axis bias is connected, located by set screw between connector and main body tubing string bottom under eccentric, be provided with at least one circle detent ball between the inwall of eccentric lower connector and the outer wall of main body tubing string bottom, connector be provided with the plug of shutoff detent ball under bias.
And described upper stuffing box upper end is also provided with pressure cap, is provided with disc spring between this pressure cap bottom and packing gland.
Advantage of the present utility model and beneficial effect are:
1, this multifunctional well head sealing blowout hookup, by set valve ball mechanism, can realize when oil-extractor polish-rod breaks de-, carry out shutoff immediately, valve ball is under the effect of horizontal plug spring and longitudinal valve ball spring, be moved to valve ball pedestal bottom, valve ball pedestal is sealed, thus realize blowout prevention effect.
2, this multifunctional well head sealing blowout hookup, a bearing pin is fixed with bottom beam barrel, this bearing pin one end goed deep in beam barrel is embedded in the made keyway in described sliding spool bottom, spacing and guide effect is played to moving horizontally of sliding spool, make it move along direction initialization, avoid occurring because of location deflection causes valve ball cannot the situation of centering valve ball pedestal.
3, this multifunctional well head sealing blowout hookup, valve ball organization establishes has initial positioning mechanism, adopt initial positioning mechanism by the sliding spool locking position of valve ball mechanism in off working state, install until well head the stop position pin preparing to unclamp initial positioning mechanism when opening and take out, the seat of resistance to ground rods is contacted with polished rod.
4, this multifunctional well head sealing blowout hookup, there is upper packing replacing function, to stop after well under derotation hard-wired rotating nut on stuffing box outer wall, lower stuffing box is moved down, and compress lower packing, make lower packing and polished rod play the effect of temporary sealing, dismantle pressure cap, old upper packing filling is taken out, add new filler, after adding new filler, stuffing box in rotation, makes packing filling lower than plane on upper stuffing box, by on pressure cap on earth, and upper packing is compressed, unclamp lower stuffing box, drive a well.
5, this multifunctional well head sealing blowout hookup, can prevent the eccentric wear problem of polished rod and packing, when pressing cap, upper packing and upper stuffing box rotate simultaneously, packing eccentric wear position is turned an angle, avoids the same orientation of long-time eccentric wear, extend device application life and improve production efficiency.
6, this multifunctional well head sealing blowout hookup, horse head can be solved and well head misaligns problem: lower connector is eccentric lower connector, the lower connector of this bias and the bottom of main body tubing string are that axis bias is connected, located by set screw between connector and main body tubing string bottom under eccentric, when horse head and well head misalign, only need unclamp this set screw, then rotate adjustment main body tubing string, make centre bore and the well head centering of its entirety, finally tighten this set screw; Be provided with at least one circle detent ball between the inwall of eccentric lower connector and the outer wall of main body tubing string bottom, improve main body tubing string and the rotation flatness be connected under bias each other.
7, this multifunctional well head sealing blowout hookup, corresponding polished rod short problem in application life can be solved: upper stuffing box upper end is also provided with pressure cap, disc spring is provided with between this pressure cap bottom and packing gland, longitudinal multiple tracks cutting is shaped with at the inwall of upper stuffing box, this disc spring compressed energy-storage, the upper packing outer wall of starting stage is enable to embed in the inwall cutting of above-mentioned upper stuffing box, after polished rod weares and teares, upper packing is to polished rod side to release, compensate the leakage increased after polished rod is worn, thus add the application life of polished rod, the life-span that general polished rod uses can double.
8, the utility model scientific structure design is reasonable, and efficiently solving oil-extractor polish-rod and to break de-, the problem such as oil well eccentric wear, horse head misalign to well head, corresponding polished rod application life is short, is that a kind of multifunctional well head with higher innovation seals blowout hookup.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model (sectional view);
Fig. 2 is the A direction view of Fig. 1;
Description of reference numerals:
Polished rod 1, pressure cap 2, disc spring 3, packing gland 4, pressure cap alignment pin 5, upper stuffing box 6, upper packing 7, lower stuffing box 8, lower packing 9, gasket ring 10, rotating nut 11, stir jackscrew 12, fixing swivel nut 13, valve ball pedestal 14, main body tubing string 15, polished rod seat 16, valve ball 17, longitudinal valve ball spring 18, sliding spool 19, O RunddichtringO 20, the right nut cap 21 of beam barrel, keyway 22, central spindle of the spring 23, horizontal plug spring 24, bearing pin 25, valve ball seat 26, lower connector 27, set screw 28, plug 29, ball 30, O RunddichtringO 31, beam barrel left end cap 32, beam barrel 33, O RunddichtringO 34, O RunddichtringO 35, stop position pin seat 36, setscrew nut 37, stop position pin 38, pressure ring 39, press down space 40.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
A kind of multifunctional well head sealing blowout hookup, it comprises upper stuffing box 6, lower stuffing box 8, main body tubing string 15 and the lower connector 27 that also can insert for oil-extractor polish-rod 1 that connect successively from top to bottom, packing 7 is set in upper stuffing box and packing gland 4 is installed, lower packing 9 is set in lower stuffing box, in main body tubing string, coaxial fixed installation valve ball pedestal 14, is provided with a gasket ring 10 between the bottom of lower packing and the upper end of valve ball pedestal.Be provided with O RunddichtringO 34 between main body tubing string and valve ball pedestal, between lower packing and valve ball pedestal, be provided with O RunddichtringO 35.
In the middle part of main body tubing string under this valve ball pedestal, right-angled intersection is provided with valve ball mechanism, and this valve ball mechanism comprises the right nut cap 21 of beam barrel 33, sliding spool 19, polished rod seat 16, beam barrel left end cap 32 and beam barrel.In one end of beam barrel, beam barrel left end cap is installed, is threaded at the beam barrel other end and the right nut cap of beam barrel is installed, between the right nut cap of beam barrel left end cap, beam barrel and beam barrel, be provided with O RunddichtringO 31,20.In beam barrel, sliding spool is installed, one end inner fixed cover shock mount mandrel 23 of sliding spool, and horizontal plug spring 24 is set between central spindle of the spring and sliding spool, in the valve ball seat 26 of sliding spool end, valve ball 17 is set, longitudinal valve ball spring 18 is provided with bottom valve ball and between valve ball seat, be fixedly installed polished rod seat 16 in the outer end of sliding spool, polished rod seat has the arc surface being surrounded on polished rod outer wall.
Be fixed with a bearing pin 25 bottom the beam barrel of valve ball mechanism, this bearing pin one end goed deep in beam barrel is embedded in the made keyway 22 in described sliding spool bottom.Spacing and guide effect is played to moving horizontally of sliding spool, makes it move along direction initialization, avoid occurring because of location deflection causes valve ball cannot the situation of centering valve ball pedestal.
Beam barrel is outside equipped with the initial positioning mechanism of sliding spool, this initial positioning mechanism is made up of stop position pin seat 36, setscrew nut 37 and stop position pin 38, stop position pin seat is packed in the outer wall of beam barrel, and stop position pin is installed by setscrew nut and stretched in beam barrel and contact in sliding spool outer wall.Adopt initial positioning mechanism by the sliding spool locking position of valve ball mechanism in off working state, install until well head the stop position pin preparing to unclamp initial positioning mechanism when opening and take out, the seat of resistance to ground rods is contacted with polished rod.
Be connected by fixing swivel nut 13 between main body tubing string with lower stuffing box, and main body tubing string, be between lower stuffing box with fixing swivel nut and be threaded, and be reverse thread connection; The upper end of lower stuffing box is shaped with the pressure ring 39 pressing down described lower packing, leaves and press down space 40 between the bottom of lower stuffing box and main body tubing string upper end.
Be fixedly mounted with rotating nut 11 at the wall coaxial of lower stuffing box, adopt between this rotating nut and lower stuffing box outer wall and stir jackscrew 12 and carry out radial servo-actuated installation.
Lower connector is eccentric lower connector, the lower connector of this bias and the bottom of main body tubing string are that axis bias is connected, located by set screw 28 between connector and main body tubing string bottom under eccentric, be provided with at least one circle detent ball 30 between the inwall of eccentric lower connector and the outer wall of main body tubing string bottom, connector be provided with the plug 29 of shutoff detent ball under bias.
Upper stuffing box upper end is also provided with pressure cap 2, is provided with disc spring 3, is connected and fixed between pressure cap and packing gland by pressure cap alignment pin 5 between this pressure cap bottom and packing gland.
The operating principle of this multifunctional well head sealing blowout hookup is:
1. anti-polished rod breaking anti-blowout function: when oil-extractor polish-rod is disconnected de-, carry out shutoff immediately, valve ball, under the effect of horizontal plug spring and longitudinal valve ball spring, is moved to valve ball pedestal bottom, seals valve ball pedestal, thus realize blowout prevention effect.
2. go up packing replacing function, to stop after well under derotation hard-wired rotating nut on stuffing box outer wall, lower stuffing box is moved down, and compress lower packing, make lower packing and polished rod play the effect of temporary sealing, dismantle pressure cap, old upper packing filling is taken out, adds new filler, after adding new filler, stuffing box in rotation, make packing filling lower than plane on upper stuffing box, by pressure cap on earth, and upper packing to be compressed, unclamp lower stuffing box, drive a well.
3. prevent the eccentric wear function of polished rod and packing: when pressing cap, upper packing and upper stuffing box rotate simultaneously, packing eccentric wear position is turned an angle, avoids the same orientation of long-time eccentric wear, extend device application life and improve production efficiency.
4. horse head and well head misalign problem: lower connector is eccentric lower connector, the lower connector of this bias and the bottom of main body tubing string are that axis bias is connected, located by set screw between connector and main body tubing string bottom under eccentric, when horse head and well head misalign, only need unclamp this set screw, then rotate adjustment main body tubing string, make centre bore and the well head centering of its entirety, finally tighten this set screw; Be provided with at least one circle detent ball between the inwall of eccentric lower connector and the outer wall of main body tubing string bottom, improve main body tubing string and the rotation flatness be connected under bias each other.
5. polished rod short problem in application life: upper stuffing box upper end is also provided with pressure cap, disc spring is provided with between this pressure cap bottom and packing gland, longitudinal multiple tracks cutting is shaped with at the inwall of upper stuffing box, this disc spring compressed energy-storage, the upper packing outer wall of starting stage is enable to embed in the inwall cutting of above-mentioned upper stuffing box, after polished rod weares and teares, upper packing is to polished rod side to release, compensate the leakage increased after polished rod is worn, thus extending the application life of polished rod, the life-span that general polished rod uses can double.
6. the intermittent fuel-displaced dry grinding problem caused: on this, packing and lower packing all adopt the packing of resistance to burning, this packing of resistance to burning is ten times of conventional packing application life, generally can use 2 ~ 3 years, the polished rod newer than one is also long for application life, save financial resources, reduce the labour intensity reducing workman, improve production efficiency.
7. high water-cut well problem: upper packing and lower packing can use High water cut packing equally, this packing can use containing when water≤99% at oily well.
Although disclosed embodiment of the present utility model and accompanying drawing for the purpose of illustration, but it will be appreciated by those skilled in the art that, in the spirit and scope not departing from the utility model and claims, various replacement, change and amendment are all possible, and therefore scope of the present utility model is not limited to the content disclosed in embodiment and accompanying drawing.
Claims (7)
1. a multifunctional well head sealing blowout hookup, it is characterized in that: comprise the upper stuffing box that also can insert for oil-extractor polish-rod connected successively from top to bottom, lower stuffing box, main body tubing string and lower connector, packing is set in upper stuffing box and packing gland is installed, in lower stuffing box, lower packing is set, coaxial fixed installation valve ball pedestal in main body tubing string, in the middle part of main body tubing string under this valve ball pedestal, right-angled intersection is provided with valve ball mechanism, this valve ball mechanism comprises beam barrel, sliding spool, polished rod seat and beam barrel end cap, in beam barrel, sliding spool is installed, one end of sliding spool and beam barrel arranges horizontal plug spring, in the valve ball seat of sliding spool end, valve ball is set, longitudinal valve ball spring is provided with bottom valve ball and between valve ball seat, polished rod seat is fixedly installed in the outer end of sliding spool.
2. a kind of multifunctional well head sealing blowout hookup according to claim 1, it is characterized in that: be fixed with a bearing pin bottom the beam barrel of described valve ball mechanism, this bearing pin one end goed deep in beam barrel is embedded in the made keyway in described sliding spool bottom.
3. a kind of multifunctional well head sealing blowout hookup according to claim 1, it is characterized in that: described beam barrel is outside equipped with the initial positioning mechanism of sliding spool, this initial positioning mechanism is made up of stop position pin seat, setscrew nut and stop position pin, stop position pin seat is packed in the outer wall of beam barrel, and stop position pin is installed by setscrew nut and stretched in beam barrel and contact in sliding spool outer wall.
4. a kind of multifunctional well head sealing blowout hookup according to claim 1, it is characterized in that: be connected by fixing swivel nut between described main body tubing string with lower stuffing box, and main body tubing string, be between lower stuffing box with fixing swivel nut and be threaded, and be that reverse thread connects; The upper end of lower stuffing box is shaped with the pressure ring pressing down described lower packing, leaves and press down space between the bottom of lower stuffing box and main body tubing string upper end.
5. a kind of multifunctional well head sealing blowout hookup according to claim 1, is characterized in that: be fixedly mounted with rotating nut at the wall coaxial of lower stuffing box, adopts to stir jackscrew and carry out radial servo-actuated installation between this rotating nut and lower stuffing box outer wall.
6. a kind of multifunctional well head sealing blowout hookup according to claim 1, it is characterized in that: described lower connector is eccentric lower connector, the lower connector of this bias and the bottom of main body tubing string are that axis bias is connected, located by set screw between connector and main body tubing string bottom under eccentric, be provided with at least one circle detent ball between the inwall of eccentric lower connector and the outer wall of main body tubing string bottom, connector be provided with the plug of shutoff detent ball under bias.
7. a kind of multifunctional well head sealing blowout hookup according to claim 1, it is characterized in that: described upper stuffing box upper end is also provided with pressure cap, be provided with disc spring between this pressure cap bottom and packing gland, be shaped with longitudinal multiple tracks cutting at the inwall of upper stuffing box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521064156.2U CN205225155U (en) | 2015-12-16 | 2015-12-16 | Multi -functional well head seals blowout preventer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521064156.2U CN205225155U (en) | 2015-12-16 | 2015-12-16 | Multi -functional well head seals blowout preventer |
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| CN205225155U true CN205225155U (en) | 2016-05-11 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443069A (en) * | 2015-12-16 | 2016-03-30 | 天津市滨海新区龙新石油机械制造有限公司 | Multifunctional well mouth sealing blowout-prevention box |
| CN108691566A (en) * | 2017-04-11 | 2018-10-23 | 中国石油化工股份有限公司 | Sand control pack integrated well head device and operational method |
| CN109236224A (en) * | 2018-09-19 | 2019-01-18 | 陕西百豪科技发展有限责任公司 | A kind of anti-dry grinding polished rod seal box of floating type two-stage sealing |
-
2015
- 2015-12-16 CN CN201521064156.2U patent/CN205225155U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443069A (en) * | 2015-12-16 | 2016-03-30 | 天津市滨海新区龙新石油机械制造有限公司 | Multifunctional well mouth sealing blowout-prevention box |
| CN108691566A (en) * | 2017-04-11 | 2018-10-23 | 中国石油化工股份有限公司 | Sand control pack integrated well head device and operational method |
| CN109236224A (en) * | 2018-09-19 | 2019-01-18 | 陕西百豪科技发展有限责任公司 | A kind of anti-dry grinding polished rod seal box of floating type two-stage sealing |
| CN109236224B (en) * | 2018-09-19 | 2023-08-15 | 陕西百豪科技发展有限责任公司 | Floating type double-stage sealing dry-grinding-preventing polish rod sealing box |
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Address after: 300280 Tianjin Binhai New Area Dagang Oilfield Development Road on the eastern side Patentee after: TIANJIN HAOYU PETROLEUM TECHNOLOGY DEVELOPMENT CO., LTD. Patentee after: Tianjin Longxin petroleum machinery manufacturing Limited by Share Ltd Address before: 300280 Tianjin Binhai New Area Dagang Oilfield Development Road on the eastern side Patentee before: TIANJIN HAOYU PETROLEUM TECHNOLOGY DEVELOPMENT CO., LTD. Patentee before: Tianjin Longxin Petroleum Machinery Manufacturing Co.,Ltd. |