CN203742518U - Hole reaming type tieback tool - Google Patents
Hole reaming type tieback tool Download PDFInfo
- Publication number
- CN203742518U CN203742518U CN201420060588.5U CN201420060588U CN203742518U CN 203742518 U CN203742518 U CN 203742518U CN 201420060588 U CN201420060588 U CN 201420060588U CN 203742518 U CN203742518 U CN 203742518U
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- CN
- China
- Prior art keywords
- reaming hole
- wall
- sealing ring
- head
- tieback
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Abstract
The utility model relates to the technical field of well cementation devices and provides a hole reaming type tieback tool which comprises a body, a sealing ring, a hollow plate, a protecting pipe, a rotating wing, a guide head, a steel wire brush and a hole reaming head. The middle outer wall of the body is provided with at least one sealing ring groove. The sealing ring is installed in the sealing ring groove. The inner wall of the lower end of the body and the outer wall of the upper end of the protecting pipe are fixedly installed together. The tieback tool is reasonable and compact in structure and convenient to use; the rotating wing rotates under the flowing and scouring effects of fluid in a sleeve so that the hole reaming head can be driven to rotate, the rotating hole reaming head finishes secondary hole reaming operation and repairing operation on the inner wall of a tieback cylinder through prismatic protrusions and the steel wire brush, the complex accidents of poor sealing due to the fact that cement in the tieback cylinder is not cleared away completely, and tieback failure or pulling out of a casing pipe due to the fact that the tieback head cannot enter the tieback cylinder can be avoided, and the tieback tool has the advantages of being safe, easy and convenient to use and efficient, and saving power.
Description
Technical field
the utility model relates to cementing unit technical field, is a kind of reaming hole type tie back tool.
Background technology
at present, both at home and abroad drillng operation adopts after drilling liner cementing, be all faced with due to tail pipe and upper strata casing section cementing quality not good, annular space water, has channeling problem that the factor such as cement paste degree of consolidation is poor causes.The production of annular space serious restriction Oil/gas Well with pressure, even may cause security incident.Therefore, after new packer liner-hanger well cementation finishes, if there is water, has channeling in the later stage, need to carry out tieback operation, be lowered to again one deck sleeve pipe at upper strata inside pipe casing, and this layer of sleeve pipe need to insert in the subsidiary tie-back sleeve of extension hanger that early stage, well cementation was used, it is tieback insert head that this insertion process needs an aid, existing tieback insert head is a kind of simple seeker, in use there will be because the ash plug insert head that removing totally causes in tie-back sleeve cannot enter tie-back sleeve, or insert the seal failure problem not exclusively causing.
Summary of the invention
the utility model provides a kind of reaming hole type tie back tool, overcome the deficiency of above-mentioned prior art, its can effectively solve that existing tieback insert head in use exists because ash plug in tie-back sleeve is not removed the insert head totally causing and cannot be entered tie-back sleeve, inserts the problem of the seal failure not exclusively causing.
the technical solution of the utility model realizes by following measures: a kind of reaming hole type tie back tool, comprise body, sealing ring, hollowcore slab, protection tube, rotary wings, target seeker, wire brush, reaming hole head, the middle part outer wall of body is provided with at least one seal groove, and sealing ring is installed in seal groove; The lower end inwall of body and the upper end outer wall of protection tube are fixedly installed togather; Hollowcore slab is fixedly mounted on the lower end inwall of body, and the lower end abutment of hollowcore slab is in the upper end of protection tube; Hollowcore slab be circumferentially evenly equipped with the inlet opening that is no less than two; The lower end outer wall of protection cylinder and the upper end outer wall of target seeker are fixedly installed togather; Target seeker be circumferentially evenly equipped with the fluid hole that is no less than two; In the cavity of rotary wings between hollowcore slab and target seeker, the upper end of rotary wings is provided with spindle nose and can be arranged on rotationally in the centre bore of hollowcore slab, and the lower end of rotary wings is provided with lower spindle nose and can be arranged on rotationally in the centre bore of target seeker; The lower end of lower spindle nose is fixedly installed togather through centre bore and with the inner side, upper end of reaming hole head; The top of reaming hole head is provided with cannelure, in cannelure, be provided with the wire brush group that is no less than a circle, each circle wire brush group comprises along circumferential at least two uniform wire brushes, is evenly equipped with the prismatic projection that is no less than two on the bottom outer wall of reaming hole head, in reaming hole head, is axially arranged with liquid flow hole.
the further optimization and/or improvements to above-mentioned utility model technical scheme below:
the lower end of above-mentioned target seeker can be provided with first conical surface.
the lower end of above-mentioned reaming hole head can be provided with second conical surface.
between the lower end inwall of above-mentioned body and the upper end outer wall of protection tube, between the lower end outer wall and the upper end outer wall of target seeker of protection cylinder, can be threaded connection between the upper end of reaming hole head and the lower end rotating shaft of rotary wings.
the middle part of above-mentioned body can be provided with three seal grooves, is separately installed with a sealing ring in three seal grooves; Or/and, in cannelure, be evenly equipped with six circle wire brush groups.
the utility model reasonable and compact in structure, easy to use, rotary wings rotates under cover tube fluid flows souring, thereby drive the rotation of reaming hole head, the reaming hole head of rotation completes secondary reaming hole and the repair to tie-back sleeve inwall by prismatic projection and wire brush, can effectively avoid in tieback operation cannot entering the tieback that tie-back sleeve causes and losing efficacy or pulled out the complex accident such as sleeve pipe because tie-back sleeve cement does not clean out the poor sealing, the tieback head that cause, there is safe, laborsaving, easy, efficient feature.
Brief description of the drawings
the master that accompanying drawing 1 is the utility model most preferred embodiment looks half section structural representation.
accompanying drawing 2 is the perspective view of target seeker in accompanying drawing 1.
accompanying drawing 3 is the perspective view of accompanying drawing 1 hollow core.
coding in accompanying drawing is respectively: 1 is body, and 2 is sealing ring, and 3 is hollowcore slab; 4 is protection tube, and 5 is rotary wings, and 6 is target seeker; 7 is wire brush, and 8 is reaming hole head, and 9 is inlet opening; 10 is fluid hole, 11 centre bores that are hollowcore slab, 12 centre bores that are target seeker; 13 is prismatic projection, and 14 is first conical surface, and 15 is second conical surface; 16 is upper spindle nose, and 17 is lower spindle nose, and 18 is liquid flow hole.
Detailed description of the invention
the utility model is not subject to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
in the utility model, for convenience of description, the description of the relative position relation of each parts is to be all described according to the Butut mode of Figure of description 1, as: the position relationship of forward and backward, upper and lower, left and right etc. is to determine according to the Butut direction of Figure of description 1.
below in conjunction with embodiment and accompanying drawing, the utility model is further described:
as shown in accompanying drawing 1,2,3, this reaming hole type tie back tool comprises body 1, sealing ring 2, hollowcore slab 3, protection tube 4, rotary wings 5, target seeker 6, wire brush 7, reaming hole head 8, the middle part outer wall of body 1 is provided with at least one seal groove, and sealing ring 2 is installed in seal groove; The lower end inwall of body 1 and the upper end outer wall of protection tube 4 are fixedly installed togather; Hollowcore slab 3 is fixedly mounted on the lower end inwall of body 1, and the lower end abutment of hollowcore slab 3 is in the upper end of protection tube 4; Hollowcore slab 3 be circumferentially evenly equipped with the inlet opening 9 that is no less than two; The lower end outer wall of protection cylinder 4 and the upper end outer wall of target seeker 6 are fixedly installed togather; Target seeker 6 be circumferentially evenly equipped with the fluid hole 10 that is no less than two; In the cavity of rotary wings 5 between hollowcore slab 3 and target seeker 6, the upper end of rotary wings 5 is provided with spindle nose 16 and can be arranged on rotationally in the centre bore 11 of hollowcore slab 3, and the lower end of rotary wings 5 is provided with lower spindle nose 17 and can be arranged on rotationally in the centre bore 12 of target seeker 6; The lower end of lower spindle nose 17 is fixedly installed togather through centre bore 12 and with the inner side, upper end of reaming hole head 8; The top of reaming hole head 8 is provided with cannelure, in cannelure, be provided with the wire brush group that is no less than a circle, each circle wire brush group comprises along circumferential uniform at least two wire brushes 7, is evenly equipped with the prismatic projection 13 that is no less than two on the bottom outer wall of reaming hole head 8, is axially arranged with liquid flow hole 18 in reaming hole head 8.
like this, the mid portion of body 1 is provided with multiple seal grooves, and sealing ring 2 is placed in seal groove, the annular space being used between seal body 1 and tie-back sleeve; Fluid hole 10 on inlet opening 9 and target seeker 6 on hollowcore slab 3 can be used as fluid passage; The two ends of rotary wings 5 are respectively equipped with spindle nose 16 and lower spindle nose 17 and can be arranged on rotationally in the centre bore 11 of hollowcore slab 3 and the centre bore 12 of target seeker 6, can guarantee rotary wings 5 rotation under the washing away of fluid; The lower end of rotary wings 5 is connected with the upper end of reaming hole head 8, like this, rotary wings 5 rotates under cover tube fluid flows souring, and then drive reaming hole head 8 to rotate, the reaming hole head 8 of rotation carries out secondary reaming hole and repair by prismatic projection 13 and wire brush 7 to tie-back sleeve inwall, can effectively avoid in tieback operation cannot entering the tieback that tie-back sleeve causes and losing efficacy or pulled out the complex accident such as sleeve pipe because tie-back sleeve cement does not clean out the poor sealing, the tieback head that cause.
can according to actual needs, above-mentioned reaming hole type tie back tool be made further optimization and/or improvements:
as shown in accompanying drawing 1,2, the lower end of above-mentioned target seeker 6 is provided with first conical surface 14.First conical surface 14 can make target seeker 6 play better guide effect, makes target seeker 6 successfully enter tie-back sleeve.
as shown in Figure 1, the lower end of above-mentioned reaming hole head 8 is provided with second conical surface 15.Second conical surface 15 can provide guiding for reaming hole head 8, and reaming hole head 8 is more successfully entered in tie-back sleeve, improves operating efficiency.
between the upper end of reaming hole head 8 and the lower end rotating shaft of rotary wings 5, be threaded connection as shown in Figure 1, between the lower end inwall of above-mentioned body 1 and the upper end outer wall of protection tube 4, between the lower end outer wall and the upper end outer wall of target seeker 6 of protection cylinder 4.Employing is threaded safe and reliable, and bonding strength is high, is difficult for getting loose, and saves the use of connector, and conserve space, reduces production costs.
as shown in Figure 1, the middle part of above-mentioned body 1 can be provided with three seal grooves, is separately installed with a sealing ring 2 in three seal grooves.Like this, can improve sealing effectiveness by three sealing rings 2 that distribute up and down, the annular space between seal body 1 and tie-back sleeve better.
as shown in Figure 1, in above-mentioned cannelure, be evenly equipped with six circle wire brush groups.Like this, the quantity of wire brush 7 is more, can carry out reaming hole and repair to the inwall of tie-back sleeve better, guarantees carrying out smoothly of tieback operation.
above technical characterictic has formed most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease according to actual needs non-essential technical characterictic, meets the demand of different situations.
the use procedure of the utility model most preferred embodiment:
while using this reaming hole type tie back tool, instrument assembly is threaded in to bunch tube bottom by the API of body 1 upper end; Setting of casing, to hanger tie-back sleeve position, is verified tie-back sleeve top, turn on pump pumping drilling fluid, and rotary wings 5 rotates under the fluid scouring effect of drilling fluid, and then drives reaming hole head 8 to rotate; The reaming hole head 8 of rotation completes reaming hole and the repair to tie-back sleeve inwall by its prismatic projection 13 and wire brush 7; Increase pump delivery, keep suitable pump pressure, slowly transfer bunch tube to pressure and raise, carry bunch tube on slowly again, then turn on pump transfers, repeat successively above-mentioned action, until tie back tool transfers to tie-back sleeve completely, and forms fully effective sealing, well head to sleeve pipe surplus line demarcate; On put forward bunch tube to circulating pressure and be reduced to normal circulation pressure, carry out conventional well cementing operation, well cementation is slowly transferred the scribing position of bunch tube to above-mentioned demarcation after for slurry bruising, completes tie-back cementing operation.
Claims (9)
1. a reaming hole type tie back tool, is characterized in that comprising body, sealing ring, hollowcore slab, protection tube, rotary wings, target seeker, wire brush, reaming hole head, and the middle part outer wall of body is provided with at least one seal groove, and sealing ring is installed in seal groove; The lower end inwall of body and the upper end outer wall of protection tube are fixedly installed togather; Hollowcore slab is fixedly mounted on the lower end inwall of body, and the lower end abutment of hollowcore slab is in the upper end of protection tube; Hollowcore slab be circumferentially evenly equipped with the inlet opening that is no less than two; The lower end outer wall of protection cylinder and the upper end outer wall of target seeker are fixedly installed togather; Target seeker be circumferentially evenly equipped with the fluid hole that is no less than two; In the cavity of rotary wings between hollowcore slab and target seeker, the upper end of rotary wings is provided with spindle nose and can be arranged on rotationally in the centre bore of hollowcore slab, and the lower end of rotary wings is provided with lower spindle nose and can be arranged on rotationally in the centre bore of target seeker; The lower end of lower spindle nose is fixedly installed togather through centre bore and with the inner side, upper end of reaming hole head; The top of reaming hole head is provided with cannelure, in cannelure, be provided with the wire brush group that is no less than a circle, each circle wire brush group comprises along circumferential at least two uniform wire brushes, is evenly equipped with the prismatic projection that is no less than two on the bottom outer wall of reaming hole head, in reaming hole head, is axially arranged with liquid flow hole.
2. reaming hole type tie back tool according to claim 1, is characterized in that the lower end of target seeker is provided with first conical surface.
3. reaming hole type tie back tool according to claim 1 and 2, is characterized in that the lower end of reaming hole head is provided with second conical surface.
4. reaming hole type tie back tool according to claim 1 and 2, is characterized in that between the lower end inwall of body and the upper end outer wall of protection tube, between the lower end outer wall and the upper end outer wall of target seeker of protection cylinder, be threaded connection between the upper end of reaming hole head and the lower end rotating shaft of rotary wings.
5. reaming hole type tie back tool according to claim 3, is characterized in that between the lower end inwall of body and the upper end outer wall of protection tube, between the lower end outer wall and the upper end outer wall of target seeker of protection cylinder, be threaded connection between the upper end of reaming hole head and the lower end rotating shaft of rotary wings.
6. reaming hole type tie back tool according to claim 1 and 2, is characterized in that the middle part of body can be provided with three seal grooves, is separately installed with a sealing ring in three seal grooves; Or/and, in cannelure, be evenly equipped with six circle wire brush groups.
7. reaming hole type tie back tool according to claim 3, is characterized in that the middle part of body can be provided with three seal grooves, is separately installed with a sealing ring in three seal grooves; Or/and, in cannelure, be evenly equipped with six circle wire brush groups.
8. reaming hole type tie back tool according to claim 4, is characterized in that the middle part of body can be provided with three seal grooves, is separately installed with a sealing ring in three seal grooves; Or/and, in cannelure, be evenly equipped with six circle wire brush groups.
9. reaming hole type tie back tool according to claim 5, is characterized in that the middle part of body can be provided with three seal grooves, is separately installed with a sealing ring in three seal grooves; Or/and, in cannelure, be evenly equipped with six circle wire brush groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420060588.5U CN203742518U (en) | 2014-02-10 | 2014-02-10 | Hole reaming type tieback tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420060588.5U CN203742518U (en) | 2014-02-10 | 2014-02-10 | Hole reaming type tieback tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203742518U true CN203742518U (en) | 2014-07-30 |
Family
ID=51342335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420060588.5U Expired - Fee Related CN203742518U (en) | 2014-02-10 | 2014-02-10 | Hole reaming type tieback tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203742518U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437591A (en) * | 2016-11-25 | 2017-02-22 | 中国石油大学(华东) | Hydraulic ball-type casing reshaping device |
-
2014
- 2014-02-10 CN CN201420060588.5U patent/CN203742518U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437591A (en) * | 2016-11-25 | 2017-02-22 | 中国石油大学(华东) | Hydraulic ball-type casing reshaping device |
| CN106437591B (en) * | 2016-11-25 | 2018-09-04 | 中国石油大学(华东) | A kind of hydraulic pressure ball type truing device for sleeve pipes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20210210 |