CN203961864U - A kind of coiled tubing sealed suspending device and dedicated operations window thereof - Google Patents
A kind of coiled tubing sealed suspending device and dedicated operations window thereof Download PDFInfo
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- CN203961864U CN203961864U CN201420388249.XU CN201420388249U CN203961864U CN 203961864 U CN203961864 U CN 203961864U CN 201420388249 U CN201420388249 U CN 201420388249U CN 203961864 U CN203961864 U CN 203961864U
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- coiled tubing
- suspending device
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- oil pipe
- sealed suspending
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Abstract
The utility model discloses a kind of coiled tubing sealed suspending device and dedicated operations window thereof, coiled tubing sealed suspending device is comprised of tubing head (17), boll-weevil hanger (18), oil pipe sealing device (20), sealing jackscrew (19), pressure testing instrument connection (21), in boll-weevil hanger (22), oil pipe sealing device (20) are installed in tubing head (17) housing; Coiled tubing sealed suspending device dedicated operations window, it is comprised of adapter flange (1), upper locating flange (2), lifting hydraulic cylinder (3), sealing ring (4), cylinder barrel (5), arm-tie (6), sealing ring (7), lower mounting flange (8), support bar (22), hydraulic line (13), portable pump (15), between two lifting hydraulic cylinders (3), be provided with synchronous valve (11), at hydraulic line (13), be provided with snap joint (12) and hand-operated direction valve (14).The utility model has solved the shortcomings such as current coiled tubing sealed suspending device leak source is many, after installing, highly increase is larger for sealed suspending device, and installation dedicated operations window switch efficiency is low, lifting hydraulic cylinder is asynchronous, hand labor intensity is large.
Description
Technical field
The utility model relates to a kind of coiled tubing sealed suspending device and dedicated operations window thereof, is specially adapted to oil field Operating Pressure well head and changes downhole tool applications.
Background technology
Day by day maturation along with underground work technology, domestic continuous oil pipe operation technology be able to fast development, but still there is defect in the design of coiled tubing sealed suspending device at present, coiled tubing sealed suspending device is generally divided into two bodies by sealing and suspension, leak source is more, and the aspect ratio that well head increases after operation is larger, and if before operation during pressure testing black box lost efficacy and need to remove sealing place housing and could change black box, operate cumbersome.In order to facilitate coiled tubing sealed suspending device, install, being specifically designed at present coiled tubing sealed suspending device operation window has screw-type manual operation window and double hydraulic cylinder formula operation window, and screw-type manual operation window exists the shortcoming that switch window efficiency is low, hand labor intensity is large; Double hydraulic cylinder formula operation window exists two hydraulic cylinder force feedback functions with no pressure to cause feed flow uneven, when hydraulic cylinder need to commutate, need manually climb, and changes manual pump fuel feeding interface, and inconvenient operation, exists potential safety hazard.
Summary of the invention
The purpose of this utility model is to provide a kind of leak source few, seal is changed convenient, seal reliable coiled tubing sealed suspending device, and two lifting hydraulic cylinder can autobalance, and can dedicated operations window be installed at the coiled tubing sealed suspending device of the oil-feed direction of terrestrial operation lifting hydraulic cylinder.
The utility model is achieved in that coiled tubing sealed suspending device, and it is comprised of tubing head, boll-weevil hanger, oil pipe sealing device, sealing jackscrew, pressure testing instrument connection, its boll-weevil hanger, oil pipe sealing device are installed in tubing head housing, thereby minimizing leak source, reduce device height, saved manufacturing cost; Oil pipe sealing device is upper V-type pad by top, bottom is lower V-type pad, centre is provided with one group of V-seal part, on upper V-type pad top and lower V-type pad bottom, be respectively equipped with upper press cover and supporting seat, owing to adopting upper V-type pad, the middle structure that is provided with one group of V-seal part of lower V-type pad, when tightening when sealing jackscrew compresses upper press cover, can excite sealing, sealing effectiveness is good; When if oil pipe sealing device lost efficacy during pressure testing before operation, can change V-seal part not dismantling safety in any wellhead component situation; The slip insert supporting seat of boll-weevil hanger adopts two lobe formula structures, by contiguous block, is connected with screw, and secondary seal is established in boll-weevil hanger bottom, secondary seal by screw fastening on slip insert supporting seat; Coiled tubing sealed suspending device dedicated operations window is installed, it is comprised of adapter flange, upper locating flange, lifting hydraulic cylinder, sealing ring, cylinder barrel, arm-tie, sealing ring, lower mounting flange, support bar, hydraulic line, portable pump, at lower mounting flange flank, be provided with pressure meter and high-pressure stop valve, pit shaft internal pressure carry out pressure release before opening operation window while being used for monitoring results; Between two lifting hydraulic cylinders, be provided with synchronous valve, two lifting hydraulic cylinders are realized to be synchronized with the movement, at hydraulic line, be provided with snap joint and hand-operated direction valve, hand-operated direction valve is three position four-way directional control valve, fuel feeding direction that just can regulator solution lifting cylinder pressure on ground, hand labor intensity while greatly having alleviated operation window switch, improves operation window switch efficiency.
The utility model is simple in structure, and switch is rapid, because coiled tubing sealed suspending device shell is taked whole tubing head structure, reduces leak source, has reduced device height, easy to operate; Due to the synchronous valve at hydraulic control pipeline installing, two lifting hydraulic cylinders are realized and be synchronized with the movement; At portable pump discharge place, be provided with a hand-operated three-position, fuel feeding direction that just can the ascending, descending of regulator solution cylinder pressure on ground, has alleviated the labor strength of switching manipulation window greatly, improves switch efficiency.
Accompanying drawing explanation
The structural representation of Fig. 1 the utility model operation window closed condition.
Fig. 2 the utility model operation window is opened the structural representation that rear boll-weevil hanger sets state.
The structural representation of Fig. 3 the utility model oil pipe sealed suspending device.
The structural representation of Fig. 4 the utility model boll-weevil hanger.
The specific embodiment
Below in conjunction with Figure of description, by embodiment, elaborate: the utility model coiled tubing sealed suspending device is comprised of tubing head (17), boll-weevil hanger (18), oil pipe sealing device (20), sealing jackscrew (19), pressure testing instrument connection (21), boll-weevil hanger (18), oil pipe sealing device (20) are installed in tubing head (17) housing, thereby minimizing leak source, reduce device height, saved manufacturing cost; Oil pipe sealing device (20) is upper V-type pad (20.2) by top, bottom is lower V-type pad (20.4), centre is provided with one group of V-seal part (20.3), on upper V-type pad (20.2) top and lower V-type pad (20.4) bottom, be respectively equipped with upper press cover (20.1) and supporting seat (20.5), owing to adopting upper V-type pad (20.2), the middle structure that is provided with one group of V-seal part (20.3) of lower V-type pad (20.4), when tightening when sealing jackscrew (19) compresses upper press cover (20.1), can excite sealing, sealing effectiveness is good; When if oil pipe sealing device (20) lost efficacy during pressure testing before operation, can change V-seal part (20.3) not dismantling safety in any wellhead component situation; The slip insert supporting seat (18.5) of boll-weevil hanger (18) adopts two lobe formula structures, by contiguous block (18.1), be connected with screw (18.2), secondary seal (18.4) is established in boll-weevil hanger (18) bottom, and secondary seal (18.4) is fastened on slip insert supporting seat (18.5) by screw (18.3); Coiled tubing sealed suspending device dedicated operations window is installed, it is comprised of adapter flange (1), upper locating flange (2), lifting hydraulic cylinder (3), sealing ring (4), cylinder barrel (5), arm-tie (6), sealing ring (7), lower mounting flange (8), support bar (22), hydraulic line (13), portable pump (15), at lower mounting flange (8) flank, be provided with pressure meter (9) and high-pressure stop valve (10), pit shaft internal pressure carry out pressure release before opening operation window while being used for monitoring results; Between two lifting hydraulic cylinders (3), be provided with synchronous valve (11), two lifting hydraulic cylinders are realized to be synchronized with the movement, at hydraulic line (13), be provided with snap joint (12) and hand-operated direction valve (14), hand-operated direction valve (14) is three position four-way directional control valve, on ground, just can regulate the fuel feeding direction of lifting hydraulic cylinder, hand labor intensity while greatly having alleviated operation window switch, improves operation window switch efficiency.During use, to first the oil pipe sealing device (20) of coiled tubing sealed suspending device be installed in tubing head housing (17), tubing head housing (17) lower flange is connected with wellhead flange, again coiled tubing sealed suspending device dedicated operations window is arranged on tubing head housing (17) upper flange, the adapter flange of operation window upper end (1) is connected with the preventer of working vehicle, after connecting, regulate hand-operated direction valve (14), by portable pump (15), hydraulic line (13), snap joint (12) and synchronous valve (11) are respectively to lifting hydraulic cylinder (3) upper oil cavitie injection liquid force feed, making arm-tie (6) drive operation window cylinder barrel (5) to move downward to lower mounting flange (8) locates, shutoff operation window, now can descend coiled tubing, after a segment distance below coiled tubing is transferred to oil pipe sealing device (20), tighten sealing jackscrew (19), slow unlatching wellhead sluice valve use wellbore pressure is the sealing situation to coiled tubing with test oil tube sealing device (20), if sealing incessantly, close wellhead sluice valve by high-pressure stop valve (10) pressure release, then opening operation window, unclamp sealing jackscrew (19), manually change the V-seal part (20.3) of oil pipe sealing device (20), after pressure testing good seal, unclamp sealing jackscrew (19), coiled tubing is continued to transfer, until projected depth, now, tighten sealing jackscrew (19) and compress upper press cover (20.1), after being squeezed, the V-seal part (20.3) of oil pipe sealing device (20) seals oil pipe, by high-pressure stop valve (10) pressure release screw by operation window chamber completely after pressure release, tighten again pressure release screw, observing pressure meter (9) reading in five minutes is zero, good seal is described, now get final product opening operation window, opening operation window step: regulate hand-operated direction valve (14), by portable pump (15) through hydraulic line (13), snap joint (12) and synchronous valve (11) are respectively to lifting hydraulic cylinder (3) lower oil cavitie injection liquid force feed, make arm-tie (6) drive operation window cylinder barrel (5) the supreme locating flange (2) that moves upward to locate, operation window is opened, then be lowered to boll-weevil hanger (18), by coiled tubing, deadweight sets and hangs, then from operation window, with oil pipe cutter, cut off coiled tubing, remove operation window, coiled tubing sealed suspending device is stayed on well head, complete the operation of coiled tubing sealed suspension.
The utility model has solved the shortcomings such as current coiled tubing sealed suspending device leak source is many, after installing, highly increase is larger for sealed suspending device, and installation dedicated operations window switch efficiency is low, lifting hydraulic cylinder is asynchronous, hand labor intensity is large.
Claims (3)
1. a coiled tubing sealed suspending device, it is comprised of tubing head (17), boll-weevil hanger (18), oil pipe sealing device (20), sealing jackscrew (19), pressure testing instrument connection (21), it is characterized in that boll-weevil hanger (22), oil pipe sealing device (20) are installed in tubing head (17) housing, oil pipe sealing device (20) top is upper V-type pad (20.2), bottom is lower V-type pad (20.4), and centre is provided with one group of V-seal part (20.3).
2. a kind of coiled tubing sealed suspending device according to claim 1, the slip insert supporting seat (18.5) that it is characterized in that boll-weevil hanger (18) adopts two lobe formula structures, by contiguous block (18.1), be connected with screw (18.2), secondary seal (18.4) is established in boll-weevil hanger (18) bottom, and secondary seal (18.4) is fastened on slip insert supporting seat (18.5) by screw (18.3).
3. one kind coiled tubing sealed suspending device dedicated operations window claimed in claim 1 is installed, it is by adapter flange (1), upper locating flange (2), lifting hydraulic cylinder (3), sealing ring (4), cylinder barrel (5), arm-tie (6), sealing ring (7), lower mounting flange (8), support bar (22), hydraulic line (13), portable pump (15) forms, it is characterized in that being provided with pressure meter (9) and high-pressure stop valve (10) at lower mounting flange (8) flank, between two lifting hydraulic cylinders (3), be provided with synchronous valve (11), at hydraulic line (13), be provided with snap joint (12) and hand-operated direction valve (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420388249.XU CN203961864U (en) | 2014-07-15 | 2014-07-15 | A kind of coiled tubing sealed suspending device and dedicated operations window thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420388249.XU CN203961864U (en) | 2014-07-15 | 2014-07-15 | A kind of coiled tubing sealed suspending device and dedicated operations window thereof |
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| Publication Number | Publication Date |
|---|---|
| CN203961864U true CN203961864U (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420388249.XU Active CN203961864U (en) | 2014-07-15 | 2014-07-15 | A kind of coiled tubing sealed suspending device and dedicated operations window thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064944A (en) * | 2015-08-07 | 2015-11-18 | 苏州道森钻采设备股份有限公司 | Double-hydraulic operation window with adjustable operation space |
| CN107905755A (en) * | 2017-12-01 | 2018-04-13 | 王鲁洋 | A kind of application method of coiled tubing dynamic sealing device |
-
2014
- 2014-07-15 CN CN201420388249.XU patent/CN203961864U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064944A (en) * | 2015-08-07 | 2015-11-18 | 苏州道森钻采设备股份有限公司 | Double-hydraulic operation window with adjustable operation space |
| CN105064944B (en) * | 2015-08-07 | 2017-08-25 | 苏州道森钻采设备股份有限公司 | One kind possesses the adjustable biliquid of working space and moves operation window |
| CN107905755A (en) * | 2017-12-01 | 2018-04-13 | 王鲁洋 | A kind of application method of coiled tubing dynamic sealing device |
| CN107905755B (en) * | 2017-12-01 | 2019-10-22 | 江苏艾伦弗罗机械制造有限公司 | A kind of application method of coiled tubing dynamic sealing device |
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