CN201262053Y - Rotating tail pipe hanger capable of respective well drilling and well completion - Google Patents

Abstract

The utility model relates to a rotating liner hanger capable of conducting both well drilling and well completion, which mainly solves the problem that the prior liner hanger can not participate in well drilling and can not conduct well cementation under a rotation condition. The rotating liner hanger is characterized in that the hanger comprises a hollow plunger mechanism, a hanger set mechanism, a setting mechanism and a feeding mechanism. The liner hanger can not only participate in well drilling but also conduct well cementation, and can also be used as a liner hanger well completion tool under rotation condition. The liner hanger has the advantages of reliable well drilling, safe operation and high well cementation quality.

Description

Can carry out the rotary liner hanger of drilling and well completion respectively

Technical field:

The utility model relates to the used hanger of tail pipe well drilling in the oil drilling field, especially can carry out the rotary liner hanger of drilling and well completion respectively.

Background technology:

Casing Drilling Technique is the revolutionary new technology in drilling well field in the world wide, is with a wide range of applications, and tail pipe well drilling is a kind of form of casing drilling.Extension hanger is one of core technology of tail pipe well drilling, and present extension hanger can not be satisfied with the needs of this technology fully, and there is certain drawback in existing extension hanger well shaft fixing technology.The extension hanger of external development is mainly used in completion practice at present, and the extension hanger itself that is applied to tail pipe well drilling does not participate in drilling well yet.Domesticly can only be used for completion at present and be not used in the extension hanger of drilling well.The two kinds of technologies of the general employing of extension hanger that are used for completion: the one, sit earlier and hang tail pipe, do not cementing the well under the rotary tail condition then.The 2nd, under the rotary tail condition, cement the well earlier, and then sit and hang tail pipe.The former shortcoming is that cementing quality is difficult to guarantee.If the latter's shortcoming is well cementation back sits to hang and conciliates problem, the serious down-hole accident that just causes running tool to pull out not coming out.In sum, existing extension hanger mainly exists do not participate in drilling well, the problem that can not cement the well under the rotary tail condition.

The utility model content:

Mainly exist and do not participate in drilling well in order to overcome existing extension hanger, the deficiency that can not under the rotary tail condition, cement the well, the utility model provides a kind of rotary liner hanger that can carry out drilling and well completion respectively, this extension hanger can not only participate in drilling well when operation, and can also be rotated well cementation, also can use as a kind of like this completion tool of the extension hanger of cementing the well under the rotating condition separately, have that drilling well is reliable, a handling safety, the good characteristics of cementing quality.

The technical solution of the utility model is: this rotary liner hanger that can carry out drilling and well completion respectively comprises lower contact and top connection, by hollow plug mechanism, sit on-hook structure, setting mechanism and send into mechanism and form;

The described mechanism that sends into includes top connection, backing pin pressure cap, backing pin and central tube;

Above-mentioned central tube is a tubulose, spline is arranged outside the middle part, fixedly connected with top connection in the central tube upper end, central tube top outer radial blind hole internal thread is connected with the backing pin pressure cap, the backing pin pressure cap is built-in with backing pin, outside in the backing pin pressure cap outer end and backing pin the inner the positive stop lug boss that matches is arranged respectively, backing pin rear end blind hole is built-in with spring, is provided with sealing ring between top connection and the central tube;

Described setting mechanism comprises expansion-head, expansion tube, packing element, slide-bar, main body;

Above-mentioned main body is a tubulose, there is outer cone thread the lower end, the spline that is connected with the central tube foreign minister is arranged at main body top, main body is enclosed within outside the central tube, be equipped with respectively in main body and the central tube corresponding aperture and hang ball seat and hang the ball lining, hang between ball seat and suspension ball lining and be equipped with the suspension ball, hang in the central tube of ball upper end and be outside equipped with sealing ring;

Above-mentioned packing element places outside the main body top in the step;

Above-mentioned slide-bar is a tubulose, and upper and lower side has interior outer cone thread respectively, and the slide-bar upper end links to each other with main body, and the slide-bar lower end links to each other with lower contact;

Above-mentioned expansion-head is a tubulose, has type conical bench, expansion-head to be enclosed within outside the central tube upper end outside the bottom;

Above-mentioned expansion tube is a tubulose, and type conical bench is arranged in the top, and the expansion tube upper and lower side is enclosed within respectively outside expansion-head and the main body, between expansion-head lower end and expansion tube step end play is arranged;

Described seat on-hook structure comprises cone, slips, sliding sleeve;

Above-mentioned sliding sleeve is a tubulose, and sliding sleeve has boss in the upper end, and sliding sleeve is enclosed within outside the slide-bar, and hang spiral pin by seat and fix, on main body that the sliding sleeve inner convex platform is corresponding down and the central tube liquid pass hole is arranged radially, be provided with sealing ring in the liquid pass hole sliding sleeve up and down, liquid pass hole central tube up and down is outside equipped with sealing ring;

Above-mentioned cone is a tubulose, and there is male cone (strobilus masculinus) the lower end, and cone is fixed on the main body by place kick;

Slips is a circular arc sheet, and there is step both sides, is the conical surface in the upper end, and the conical surface cooperates with the male cone (strobilus masculinus) of cone, and slips is the anchor tooth in addition, and slips is arranged in the corresponding gap with cone of sliding sleeve;

Described hollow plug mechanism is made up of sheath, core barrel, hollow plug main body, ball seat and inner core;

Above-mentioned inner core is a tubulose, there is ring-shaped step interior upper end, annular groove is arranged at outer top, outer lower end has annular boss, be fixed with fixing pin and sliding pin on the inner core, fixing pin is fixedlyed connected with central tube, axially is slidingly connected in the strip hole on sliding pin and the central tube, the outer liquid pass hole of inner core upper end is provided with sealing ring;

Above-mentioned ball seat is a tubulose, on the wall of middle and lower part through hole is arranged, and ball seat is provided with sealing ring by ball seat dowel fixes bottom in inner core between ball seat and the inner core;

Above-mentioned hollow plug main body is a tubulose, and step is arranged at top, and annular groove is arranged at the bottom, the hollow plug main body is arranged under the inner core in the slide-bar, upper and lower side is respectively arranged with reed and ratchet in the hollow plug lower body part groove, and reed supports ratchet, is provided with sealing ring between hollow plug main body and the core barrel;

Above-mentioned core barrel is a tubulose, in the upper end annular boss is arranged, be outside equipped with leather cup, core barrel is arranged on hollow plug main body and inner core) outside, fixedly connected with the hollow plug main body by pin in the core barrel lower end, core barrel upper end boss is slidingly connected with the corresponding boss in inner core lower end, is provided with sealing ring between core barrel and the inner core;

Above-mentioned sheath is a tubulose, is arranged on outside core barrel and the hollow plug main body, fixedlys connected with central tube and core barrel by connecting pin in the sheath upper end.

Be equipped with unfreezing ball lining and unfreezing ball seat in top connection in the such scheme and the central tube corresponding aperture respectively, be equipped with the unfreezing ball between unfreezing ball lining and unfreezing ball seat, interior being fixedly connected with in the unfreezing by the unfreezing spiral pin of top connection overlapped, and there is the sphere that matches with unfreezing work ball the set upper side in the unfreezing; Be provided with bearing between the outer step of cone upper end and main body, be provided with supporting positive cover between bearing and main body step; There is the sphere that matches with the work ball ball seat upper end; Hollow plug main body lower end is taper; Between expansion-head upper end and top connection step, between sliding sleeve and lower contact, be respectively arranged with supporting positive cover between packing element and main body step.

The beneficial effect that the utlity model has is: this can carry out the rotary liner hanger of drilling and well completion respectively owing to adopted such scheme, at first, adopt the suspension ball that central tube and main body are connected as one because of sending into mechanism, utilize the suspension ball to realize connecting or freeing and send into mechanism, utilize central tube and intersubjective spline transfer torque again, realize steadily creeping into.

Secondly, adopt drilling liquid pressure to cut off the fixing pin that hollow plug mechanism fixedlys connected with central tube because of sitting the on-hook structure, it is up to promote sliding sleeve by drilling liquid pressure again, and the outer anchor tooth of slips is stuck in the upper level sleeve pipe, hangs in the upper level sleeve pipe so can realize the tail pipe seat.

Then, be connected the ball seat pin because of hollow plug mechanism adopts drilling liquid pressure to cut off between ball seat and the inner core again, the well cementation passage is opened, and in the cemented while, realizes the rotation well cementation.Because of adopting drilling liquid pressure, setting mechanism cuts off the pin that inner core is fixedlyed connected with central tube at last, make central tube up, be sitting in the expansion-head upper end by the backing pin card, press down drill string, backing pin is by the type conical bench distending expansion tube and the extruding packing element of expansion-head, realize the soft or hard double containment, last drill string with send into mechanism and trip out simultaneously, tail pipe well drilling and cement operations are finished.This extension hanger can not only participate in drilling well when operation thus, and can also be rotated well cementation, also can use as a kind of like this completion tool of the extension hanger of cementing the well under the rotating condition separately, have that drilling well is reliable, a handling safety, the good characteristics of cementing quality.

Description of drawings:

Accompanying drawing 1 is a structural front view of the present utility model.

1-top connection among the figure, 2-supporting positive cover, 3-unfreezing ball seat, 4-unfreezing ball, the 5-expansion-head, 6-backing pin pressure cap, 7-expansion tube, 8-bearing, the 9-place kick, the 10-cone, 11-hangs ball seat, and 12-hangs ball, the 13-liquid pass hole, the 14-fixing pin, 15-connects pin, and 16-sits and hangs spiral pin, the 17-sheath, 18-ratchet, 19-lower contact, cover in the 20-unfreezing, 21-unfreezing ball lining, 22-unfreezing spiral pin, the 23-backing pin, 24-central tube, 25-packing element upper saddle, the 26-packing element, 27-packing element lower slider, 28-main body, 29-inner core, 30-hang ball lining, 31-slips, the 32-ball seat, 33-sliding pin, 34-ball seat pin, the 35-core barrel, 36-leather cup, 37-sliding sleeve, 38-hollow plug main body, 39-slide-bar, 40-reed.

The specific embodiment:

Below in conjunction with accompanying drawing will the utility model is described in further detail:

By shown in Figure 1, this rotary liner hanger that can carry out drilling and well completion respectively comprises lower contact 19 and top connection 1, by hollow plug mechanism, sit on-hook structure, setting mechanism and send into mechanism and form;

The transfer torque effect plays by spline in the described mechanism that sends into, and simultaneously, plays the effect of promptly slipping out of the hand when separating with central tube 24 with top connection 1 by unfreezing ball 4.Send into mechanism and consist predominantly of top connection 1, backing pin pressure cap 6, backing pin 23 and central tube 24.The central tube 24 main interconnect functions that rise, central tube 24 is a tubulose, spline is arranged outside the middle part, spline mainly plays the transfer torque effect, be equipped with unfreezing ball lining 21 and unfreezing ball seat 3 in top connection 1 and central tube 24 corresponding apertures respectively, unfreezing ball lining 21 is equipped with unfreezing ball 4 with 3 corresponding hemisphere grooves of unfreezing ball seat, unfreezing ball lining 21 and unfreezing ball seat 3 play fixedly unfreezing ball 4 effects, top connection 1 interior being fixedly connected with by unfreezing spiral pin 22 overlaps 20 in the unfreezing, cover 20 works unfreezing ball lining 21 effects of placing restrictions in the unfreezing, there is the sphere that matches with unfreezing work ball cover 20 upper ends in the unfreezing, and sphere is in order to strengthen the sealing function with the unfreezing ball.Central tube 24 top outer radial blind hole internal threads are connected with backing pin pressure cap 6, band shape positive stop lug boss in backing pin pressure cap 6 outer ends, backing pin pressure cap 6 is built-in with backing pin 23, backing pin 23 inner annular stop boss in addition, backing pin 23 rear end blind holes are built-in with spring, backing pin pressure cap 6 has been to place restrictions on backing pin 23 effects, drill string weight can be acted on the expansion-head 5 by backing pin 23, is provided with sealing ring between top connection 1 and the central tube 24.For the phenomenon that prevents to occur after the finishing drilling to throw off, make drill string to propose, so adopted top connection 1 and central tube 24 to serve as a contrast 21 by the unfreezing ball, the syndeton that unfreezing ball seat 3 and unfreezing ball 4 are such, if, the phenomenon that appearance can't be thrown off after finishing drilling, by dropping into the unfreezing ball, drilling fluid boosts, top connection 1 is cut off with the unfreezing spiral pin 22 that is connected of the interior cover 20 of unfreezing, or else cover 20 places restrictions on unfreezing ball 4 in the unfreezing, and unfreezing ball 4 moves inward, and top connection 1 is thrown off with central tube 24, thereby prevent that effectively drill string from can't propose phenomenon and producing, guarantee the safe operation of drilling well and well cementation.After the pin 15 that core barrel 35 is fixedlyed connected with central tube 24 is cut off, on carry drill string after, central tube 24 is up, and expansion-head 5 is not spacing to backing pin 23, and backing pin 23 ejects a part, backing pin 23 cards are sitting in expansion-head 5 upper ends, backing pin 23 is realized sealing firmly, simultaneously by the type conical bench distending expansion tube 7 of expansion-head 5 in the process that central tube 24 falls, by expansion tube 7 and packing element upper saddle 25 extruding packing elements 26, realize soft seal more again.

It is by hanging ball 12 setting mechanism to be hung and is integral with sending into mechanism that described setting mechanism mainly acts on, and simultaneously, finishes sealing after the well cementation by expansion tube 7 and packing element 26.Setting mechanism comprises expansion-head 5, expansion tube 7, packing element 26, slide-bar 39, main body 28.Main body 28 mainly works mechanism's connection and the disengagement effect sent into; main body 28 is a tubulose; there is outer cone thread the lower end; the spline that is connected with central tube 24 foreign ministers is arranged at main body 28 tops; main body 28 is enclosed within outside the central tube 24; step is built-in with packing element upper saddle 25 and packing element lower slider 27 outside main body 28 tops; packing element upper saddle 25 and packing element lower slider 27 have been compression and 26 effects of protection packing element; be equipped with respectively in main body 28 and central tube 24 corresponding apertures and hang ball seat 11 and hang ball lining 30; suspension ball seat 11 and 30 corresponding hemisphere grooves of suspension ball lining are equipped with and hang ball 12; hanging ball seat 11 and hanging ball lining 30 has been fixing ball 12 effects of hanging; be connected with the suspension of central tube 24 by hanging ball 12 realization bodies 28, hang in the ball 12 upper end central tubes 24 and be outside equipped with sealing ring.Packing element 26 places in packing element upper saddle 25 and 27 steps of packing element lower slider; realize soft seal by packing element 26; packing element 26 upper and lower sides have the packing element sheath of fixedlying connected with packing element upper saddle 25 and packing element lower slider 27; the packing element sheath has been fixing and protection packing element 26 acts on, and is provided with supporting positive cover 2 between packing element lower slider 27 and main body 28 steps.The slide-bar 39 main interconnect functions that rise, slide-bar 39 is a tubulose, and upper and lower side has interior outer cone thread respectively, and slide-bar 39 upper ends link to each other with main body 28 lower ends by screw thread, and slide-bar 39 lower ends link to each other with lower contact 19 by screw thread.Expansion-head 5 main effects are distending expansion tube 7 and promotion expansion tube 7 compression packing elements 26, and expansion-head 5 is a tubulose, and type conical bench is arranged outside the bottom, and expansion-head 5 is enclosed within outside central tube 24 upper ends, is provided with supporting positive cover 2 between expansion-head 5 upper ends and top connection 1 step.Expansion tube 7 main effects are hard sealings and promote packing element 26 compressions, expansion tube 7 is a tubulose, type conical bench is arranged in the top, expansion tube 7 upper and lower sides are enclosed within respectively outside expansion-head 5 and the main body 28, the lower end also contacts with packing element upper saddle 25, between expansion-head 5 lower ends and expansion tube 7 steps end play is arranged, the size of end play is according to expansion tube 7 and the design of packing element 26 expansion situations.

The main effect of described seat on-hook structure is with tail tube hanging lower end in the upper level sleeve pipe by slips 31.Sit the on-hook structure and comprise cone 10, slips 31, sliding sleeve 37.Sliding sleeve 37 starting power effects, it is up to promote slips 31.Sliding sleeve 37 is a tubulose, sliding sleeve has boss in 37 upper ends, sliding sleeve 37 is enclosed within outside the slide-bar 39, and it is fixing by sitting extension spiral pin 16, on main body 28 that sliding sleeve 37 inner convex platforms are corresponding down and the central tube 24 liquid pass hole 13 is arranged radially, be provided with sealing ring in the sliding sleeve 37 of liquid pass hole about in the of 13, the central tube 24 of liquid pass hole about in the of 13 is outside equipped with sealing ring.Cone 10 plays 31 effects of distending slips, and cone 10 is a tubulose, and there is male cone (strobilus masculinus) the lower end, and cone 10 is fixed in the main body 28 outer steps by place kick 9, is disposed with bearing 8 and supporting positive cover 2 between cone 10 upper ends and main body 28 outer steps.The slips 31 tailor-made usefulness of mainly weighing anchor, slips 31 is a circular arc sheet, and there is step both sides, are the conical surface in the upper end, and the conical surface cooperates with the male cone (strobilus masculinus) of cone 10, and slips 31 is the anchor teeth in addition, and slips 31 is arranged in sliding sleeve 37 and the cone 10 corresponding gap.

The main effect of described hollow plug mechanism is to build the pressure by ball seat 32 and inner core 29 sealings, cuts off pin, opens liquid pass hole 13 and cementing passage.Hollow plug mechanism includes sheath 17, core barrel 35, hollow plug main body 38, ball seat 32 and inner core 29 and forms.The main effect of inner core 29 is the suspension ball 12 that connects central tube 24 and main body 28 to be carried out spacing, and carries out compound with solid plug.Inner core 29 is a tubulose, there is ring-shaped step interior upper end, annular groove is arranged at outer top, outer lower end has annular boss, be fixed with 1 fixing pin 14 and 1 sliding pin 33 on the inner core 29, fixing pin 14 is fixedlyed connected with central tube 24, axially is slidingly connected in the strip hole on sliding pin 33 and the central tube 24, the length of strip hole can make inner core 29 upper ends and central tube 24 interior sealing rings lose sealing function with inner core 29 and be as the criterion, and inner core 29 outer liquid pass holes 13 upper ends are provided with sealing ring.Ball seat 32 mainly plays the sealing effect of building the pressure, and ball seat 32 is a tubulose, and there is the sphere that matches with the work ball ball seat 32 upper ends, on the wall of middle and lower part through hole are arranged, and ball seat 32 is fixed on bottom in the inner core 29 by ball seat pin 34, is provided with sealing ring between ball seat 32 and the inner core 29.Hollow plug main body 38 mainly plays the effect of oppositely placing restrictions on, and hollow plug main body 38 is a tubulose, and step is arranged outside the top, and annular groove is arranged outside the bottom, and hollow plug main body 38 lower ends are taper.Hollow plug main body 38 is arranged in 29 times slide-bars 39 of inner core, the lower end hinge has ratchet 18 in the hollow plug main body 38 lower annular grooves, the upper end is fixed with reed 40 in the hollow plug main body 38 lower annular grooves, reed 40 places in the ratchet 18, reed 40 is used to support ratchet 18, ratchet 18 by with flower basket type glue tube base that the tail pipe bottom connects in step block mutually, make hollow plug mechanism and the inner core 29 can not be up, be provided with sealing ring between hollow plug main body 38 and the core barrel 35.Core barrel 35 works the cement paste effect in the tail pipe of removing, core barrel 35 is a tubulose, in the upper end annular boss is arranged, leather cup 36 is arranged outward, core barrel 35 is arranged on outside hollow plug main body 38 and the inner core 29, fixedly connected with hollow plug main body 38 by pin in core barrel 35 lower ends, core barrel 35 upper end boss are slidingly connected with the corresponding boss in inner core 29 lower ends, are provided with sealing ring between core barrel 35 and the inner core 29.Sheath 17 is a tubulose, is arranged on outside core barrel 35 and the hollow plug main body 38, fixedlys connected with central tube 24 and core barrel 35 by connecting pin 15 in sheath 17 upper ends, and sheath 17 has been leather cup 36 effects on the protection core barrel 35, prevents that leather cup 36 from damaging.

During actual the use, after finishing the upper level cased hole completion, this rotary liner hanger that can carry out drilling and well completion respectively is connected the drill collar lower end, again tail pipe is connected the rotary liner hanger lower end that this can carry out drilling and well completion respectively, can normally creep into.When drilling well, because of adopting suspension ball 12 to connect as one between central tube 24 and the main body 28, utilize the spline transmission power of 28 of central tube 24 and main bodys, so drill collar can rotate by the drill bit that top connection 1, central tube 24, main body 28, slide-bar 39 and lower contact 19 drive under the tail pipe, realizes steadily creeping into.After creeping into desired depth, need not play drill string, the ball of directly will working is put into the upper end of the ball seat 32 of this rotary liner hanger that can carry out drilling and well completion respectively from drill string, the sphere of work ball and ball seat 32 upper ends produces sealing, rising pressure, when pressure reaches 5 MPas, the fixing pin 14 that inner core 29 is fixedlyed connected with central tube 24 is cut off, inner core 29 is descending, inner core 29 is also spacing to hanging ball 12 by hanging ball lining 30, and the sealing ring of inner core 29 upper ends lost efficacy, and drilling fluid enters in the sliding sleeve 37 upper end boss from liquid pass hole 13, the seat that promotion sliding sleeve 37 is cut off between sliding sleeve 37 and the slide-bar 39 is hung spiral pin 16, sliding sleeve 37 is up, and it is up along cone 10 lower end male cone (strobilus masculinus)s to promote slips 31, outwards expands at the effect lower slips 31 of cone 10 conical surfaces, slips 31 outer anchor teeth are stuck in the upper level sleeve pipe, sit the on-hook structure and realize sitting extension.After sitting extension, continue to boost to 8 MPas, the sliding pin 33 that inner core 29 is connected with central tube 24 is cut off, inner core 29 no longer carries out spacing to hanging ball 12, hang ball 12 and inwardly shift out, central tube 24 is thrown off with the suspension of main body 28, and at this moment main body 28 can be rotated with central tube 24 synchronously by spline, but central tube 24 no longer carries the load of main body 28 and its underpart, realizes sending into mechanism and the disengagement of sitting the on-hook structure.After the disengagement, continue to boost to 15 MPas, ball seat 32 is cut off with the ball seat pin 34 that is connected between the inner core 29, work ball and ball seat 32 together come off, and the well cementation passage is opened, and can carry out cementing, in the cemented while, can drive central tube 24 rotations by drill collar, the spline that passes through 28 of central tube 24 and main bodys again drives main body 28 and the rotation of following drilling assembly thereof, and the realization rotation is cemented the well.After cementing finishes, solid plug is put into the upper end of the inner core 29 of this rotary liner hanger that can carry out drilling and well completion respectively from drill string, solid plug and inner core 29 upper ends produce sealing, at this moment pressure raises, when pressure reaches 15 MPas, make core barrel 35 and central tube 24 be fixedly coupled pin 15 and cut off, inner core 29 and core barrel 35 together come off, on carry drill string, realize drill string and the thorough disengagement of sending into mechanism, in central tube 24 up processes, expansion-head 5 is no longer spacing to backing pin 23, and backing pin 23 ejects, backing pin 23 cards are sitting in expansion-head 5 upper ends, press down drilling tool, backing pin 23 is realized sealing firmly by the type conical bench distending expansion tube 7 of expansion-head 5 in the process that central tube 24 falls, simultaneously, by expansion tube 7 and packing element upper saddle 25 extruding packing elements 26, realize soft seal more again, finally reach double-sealing.Last drilling rod with send into mechanism and trip out simultaneously, tail pipe well drilling and cement operations are finished.

In sum, be not difficult to find out that this can carry out respectively the rotary liner hanger of drilling and well completion Not only can participate in drilling well, and can sit earlier extension, then rotation well cementation realizes dual-seal, Thereby simplified tail pipe well drilling technology, improved tail pipe well drilling efficient and quality, reduced tail pipe and bore The cost of well, and drilling well is reliable, handling safety. This extension hanger is when operation thus Drilling well can not only be participated in, and well cementation can also be rotated, also can be separately as rotating condition Lower so a kind of completion tool of extension hanger of cementing the well uses, have drilling well reliable, Handling safety, the good characteristics of cementing quality.

Claims (6)

1, a kind of rotary liner hanger that can carry out drilling and well completion respectively comprises lower contact (19) and top connection (1), it is characterized in that: by hollow plug mechanism, sit on-hook structure, setting mechanism and send into mechanism and form;

The described mechanism that sends into includes top connection (1), backing pin pressure cap (6), backing pin (23) and central tube (24);

Above-mentioned central tube (24) is a tubulose, spline is arranged outside the middle part, fixedly connected with top connection (1) in central tube (24) upper end, central tube (24) top outer radial blind hole internal thread is connected with backing pin pressure cap (6), backing pin pressure cap (6) is built-in with backing pin (23), in backing pin pressure cap (6) outer end and outside backing pin (23) the inner the positive stop lug boss that matches is arranged respectively, backing pin (23) rear end blind hole is built-in with spring, is provided with sealing ring between top connection (1) and the central tube (24);

Described setting mechanism comprises expansion-head (5), expansion tube (7), packing element (26), slide-bar (39), main body (28);

Above-mentioned main body (28) is a tubulose, there is outer cone thread the lower end, the spline that is connected with central tube (24) foreign minister is arranged at main body (28) top, main body (28) is enclosed within outside the central tube (24), be equipped with respectively in main body (28) and central tube (24) corresponding aperture and hang ball seat (11) and hang ball lining (30), hang to be equipped with between ball seat (11) and suspension ball lining (30) and hang ball (12), hang in ball (12) the upper end central tube (24) and be outside equipped with sealing ring;

Above-mentioned packing element (26) places outside main body (28) top in the step;

Above-mentioned slide-bar (39) is a tubulose, and upper and lower side has interior outer cone thread respectively, and slide-bar (39) upper end links to each other with main body (28), and slide-bar (39) lower end links to each other with lower contact (19);

Above-mentioned expansion-head (5) is a tubulose, and type conical bench is arranged outside the bottom, and expansion-head (5) is enclosed within outside central tube (24) upper end;

Above-mentioned expansion tube (7) is a tubulose, and type conical bench is arranged in the top, and expansion tube (7) upper and lower side is enclosed within respectively outside expansion-head (5) and the main body (28), between expansion-head (5) lower end and expansion tube (7) step end play is arranged;

Described seat on-hook structure comprises cone (10), slips (31), sliding sleeve (37);

Above-mentioned sliding sleeve (37) is a tubulose, sliding sleeve (37) has boss in the upper end, sliding sleeve (37) is enclosed within outside the slide-bar (39), and it is fixing by sitting extension spiral pin (16), on main body (28) that sliding sleeve (37) inner convex platform is corresponding down and the central tube (24) liquid pass hole (13) is arranged radially, be provided with sealing ring in liquid pass hole (13) sliding sleeve (37) up and down, liquid pass hole (13) central tube (24) up and down is outside equipped with sealing ring;

Above-mentioned cone (10) is a tubulose, and there is male cone (strobilus masculinus) the lower end, and cone (10) is fixed on the main body (28) by place kick (9);

Slips (31) is a circular arc sheet, and there is step both sides, is the conical surface in the upper end, and the conical surface cooperates with the male cone (strobilus masculinus) of cone (10), and slips (31) is the anchor tooth in addition, and slips (31) is arranged in sliding sleeve (37) and the corresponding gap of cone (10);

Described hollow plug mechanism is made up of sheath (17), core barrel (35), hollow plug main body (38), ball seat (32) and inner core (29);

Above-mentioned inner core (29) is a tubulose, there is ring-shaped step interior upper end, annular groove is arranged at outer top, outer lower end has annular boss, be fixed with fixing pin (14) and sliding pin (33) on the inner core (29), fixing pin (14) is fixedlyed connected with central tube (24), and sliding pin (33) is gone up in the axial strip hole with central tube (24) and is slidingly connected, and the outer liquid pass hole of inner core (29) (13) upper end is provided with sealing ring;

Above-mentioned ball seat (32) is a tubulose, on the wall of middle and lower part through hole is arranged, and ball seat (32) is fixed on the interior bottom of inner core (29) by ball seat pin (34), is provided with sealing ring between ball seat (32) and the inner core (29);

Above-mentioned hollow plug main body (38) is a tubulose, step is arranged at top, annular groove is arranged at the bottom, hollow plug main body (38) is arranged under the inner core (29) in the slide-bar (39), upper and lower side is respectively arranged with reed (40) and ratchet (18) in hollow plug main body (38) lower recess, reed (40) supports ratchet (18), is provided with sealing ring between hollow plug main body (38) and the core barrel (35);

Above-mentioned core barrel (35) is a tubulose, in the upper end annular boss is arranged, be outside equipped with leather cup (36), core barrel (35) is arranged on outside hollow plug main body (38) and the inner core (29), fixedly connected with hollow plug main body (38) by pin in core barrel (35) lower end, core barrel (35) upper end boss is slidingly connected with the corresponding boss in inner core (29) lower end, is provided with sealing ring between core barrel (35) and the inner core (29);

Above-mentioned sheath (17) is a tubulose, is arranged on outside core barrel (35) and the hollow plug main body (38), fixedlys connected with central tube (24) and core barrel (35) by connecting pin (15) in sheath (17) upper end.

2, the rotary liner hanger that can carry out drilling and well completion respectively according to claim 1, it is characterized in that: be equipped with unfreezing ball lining (21) and unfreezing ball seat (3) in top connection (1) and central tube (24) corresponding aperture respectively, be equipped with unfreezing ball (4) between unfreezing ball lining (21) and unfreezing ball seat (3), be fixedly connected with cover (20) in the unfreezing by unfreezing spiral pin (22) in the top connection (1), there is the sphere that matches with unfreezing work ball cover (20) upper end in the unfreezing.

3, the rotary liner hanger that can carry out drilling and well completion respectively according to claim 1, it is characterized in that: be provided with bearing (8) between cone (10) upper end and the outer step of main body (28), be provided with supporting positive cover (2) between bearing (8) and main body (28) step.

4, the rotary liner hanger that can carry out drilling and well completion respectively according to claim 1 is characterized in that: there is the sphere that matches with the work ball ball seat (32) upper end.

5, the rotary liner hanger that can carry out drilling and well completion respectively according to claim 1, it is characterized in that: hollow plug main body (38) lower end is taper.

6, the rotary liner hanger that can carry out drilling and well completion respectively according to claim 1 is characterized in that: between expansion-head (5) upper end and top connection (1) step, between sliding sleeve (37) and lower contact, be respectively arranged with supporting positive cover (2) between packing element (26) and main body (28) step.

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