CN110206498A - One kind reinforcing centering drillable metal casing shoes for bushing pipe - Google Patents
One kind reinforcing centering drillable metal casing shoes for bushing pipe Download PDFInfo
- Publication number
- CN110206498A CN110206498A CN201910633499.2A CN201910633499A CN110206498A CN 110206498 A CN110206498 A CN 110206498A CN 201910633499 A CN201910633499 A CN 201910633499A CN 110206498 A CN110206498 A CN 110206498A
- Authority
- CN
- China
- Prior art keywords
- pipe
- housing
- connector
- bushing pipe
- centering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 10
- 239000002184 metal Substances 0.000 title claims abstract description 10
- 230000003014 reinforcing effect Effects 0.000 title description 3
- 150000001875 compounds Chemical class 0.000 claims abstract description 15
- 230000003116 impacting effect Effects 0.000 claims abstract description 7
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 239000003208 petroleum Substances 0.000 abstract description 3
- 230000002787 reinforcement Effects 0.000 abstract description 2
- 208000034656 Contusions Diseases 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 239000002002 slurry Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/14—Casing shoes for the protection of the bottom of the casing
Abstract
The present invention relates to bushing pipe reinforcement technique fields in petroleum well workover operation process, in particular to a kind of to reinforce centering drillable metal casing shoes for bushing pipe.The outer set upper side of the device connects bushing pipe, impacting seat, back-pressure valve are sequentially connected in housing, housing lower end jointing, the design of connector lower outer has taper chamfering, flow passage is provided on housing and connector side wall, flow passage is connected to outside housing and inside connector, and connector lower end connects righting pipe, the lower part casing inner diameter of the righting pipe outside diameter and compound wellbore matches, which is inserted into the lower parts casing pipe of compound wellbore.The present invention realizes bushing pipe internal diameter and lower parts casing pipe is concentric, and casing shoe drillability is good, guarantees workover treatment effect.
Description
Technical field:
The present invention relates to bushing pipe reinforcement technique fields in petroleum well workover operation process, in particular to a kind of to reinforce for bushing pipe
Centering drillable metal casing shoes.
Background technique:
Currently, having a kind of wellbore in petroleum well workover operation, cannula structure is compound wellbore, the compound wellbore top
Casing diameter is greater than lower part casing diameter.Such as: top is 245 casings, and lower part is 178 casings；Or top is 178 casings, under
Portion is 127 casings；Or top is 140 casings, lower part is 102 casings etc..
Wellbore casing can damage after a period of time due to being influenced by various factors.Cannula structure is compound well
Eye needs lower bushing pipe to reinforce when upper sleeve damage.Its bushing pipe internal diameter is consistent with lower part casing inner diameter.Due to by hole deviation and lining
The limitation of pipe outside diameter will lead to bushing pipe internal diameter and lower part casing inner diameter decentraction.Decentraction will affect the effect of workover treatment.
Bushing pipe reinforcing simultaneously should meet following technical conditions: has the function of recycling cement slurry cementing, it can be by cement slurry
It is sent to a bruising, cement slurry is not flow backwards after bruising, that is, has bruising device and back pressure valve gear.It needs to bore bruising after theing cement solidifies
Device and back pressure valve gear.So bruising device and back pressure valve gear should have drillability.
Summary of the invention:
The technical problem to be solved in the present invention is to provide one kind to reinforce centering drillable metal casing shoes for bushing pipe, and the device is real
Bushing pipe internal diameter is showed and lower parts casing pipe is concentric, casing shoe drillability is good, guarantees workover treatment effect.Overcome existing compound well
Bushing pipe internal diameter and lower part casing inner diameter decentraction, the deficiency of bushing pipe bracing means drillability difference when eye bushing pipe is reinforced.
The technical solution used in the present invention is: a kind of reinforce centering drillable metal casing shoes, including housing for bushing pipe；Outside
Set upper side connects bushing pipe, and impacting seat, back-pressure valve, housing lower end jointing, the design of connector lower outer are sequentially connected in housing
There is taper chamfering, flow passage is provided on housing and connector side wall, flow passage is connected to outside housing and inside connector, under connector
End connection righting pipe, the lower part casing inner diameter of the righting pipe outside diameter and compound wellbore match, which can insert
Enter in the lower parts casing pipe of compound wellbore.
Impacting seat, the valve body of back-pressure valve, connector, righting pipe are all made of aluminium and are made.
The design of righting pipe lower outer has taper chamfering.
The beneficial effects of the present invention are: the present invention realizes bushing pipe internal diameter and lower parts casing pipe is concentric, casing shoe drillability is good,
Guarantee workover treatment effect.
Detailed description of the invention:
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is that righting pipe is inserted into the schematic diagram in the lower parts casing pipe of compound wellbore.
Specific embodiment:
As shown in Figure 1, a kind of reinforce centering drillable metal casing shoes, including housing 1 for bushing pipe；1 upper end of housing connection lining
It manages, impacting seat 2, back-pressure valve 3,1 lower end jointing 4 of housing is sequentially connected in housing 1, the design of 4 lower outer of connector has taper
The tapered surface of chamfering, the taper chamfering and compound wellbore upper sleeve and lower part cannula connection matches, and falls in the taper
Angle can make bushing pipe placed in the middle when being contacted with above-mentioned tapered surface.Flow passage 6, recirculation hole are provided on 4 side wall of housing 1 and connector
Road 6 is connected to inside 1 outside of housing and connector 4, and 4 lower end of connector connects righting pipe 5,5 outer diameter of righting pipe and compound wellbore
Lower 7 internal diameter of parts casing pipe matches, which is inserted into the lower parts casing pipe 7 of compound wellbore, as shown in Figure 2.
Impacting seat 2, the valve body of back-pressure valve 3, connector 4, righting pipe 5 are all made of aluminium and are made, and drillability is good.
The design of 5 lower outer of righting pipe has taper chamfering.
, it can be achieved that solid bushing pipe and brill fall casing shoe, to complete to upper after 7 centering of parts casing pipe under bushing pipe and compound wellbore
The repair of parts casing pipe works normally oily (gas, water) well.
It is understood that being merely to illustrate the present invention above with respect to specific descriptions of the invention and being not limited to this
Technical solution described in inventive embodiments, those skilled in the art should understand that, still the present invention can be carried out
Modification or equivalent replacement, to reach identical technical effect；As long as meet use needs, all protection scope of the present invention it
It is interior.
Claims (3)
1. one kind reinforces centering drillable metal casing shoes, including housing (1) for bushing pipe；It is characterized by: housing (1) upper end connects
Bushing pipe, housing (1) is interior to be sequentially connected impacting seat (2), back-pressure valve (3), housing (1) lower end jointing (4), connector (4) lower part
Outer end design has taper chamfering, is provided with flow passage (6) on housing (1) and connector (4) side wall, and flow passage (6) is connected to housing
(1) external and connector (4) are internal, and connector (4) lower end connects righting pipe (5), under righting pipe (5) outer diameter and compound wellbore
Parts casing pipe (7) internal diameter matches, which is inserted into the lower parts casing pipe (7) of compound wellbore.
2. described in accordance with the claim 1 reinforce centering drillable metal casing shoes for bushing pipe, it is characterised in that: the impacting seat
(2), the valve body of back-pressure valve (3), connector (4), righting pipe (5) are all made of aluminium and are made.
3. described in accordance with the claim 1 reinforce centering drillable metal casing shoes for bushing pipe, it is characterised in that: the righting pipe
(5) lower outer design has taper chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910633499.2A CN110206498A (en) | 2019-07-15 | 2019-07-15 | One kind reinforcing centering drillable metal casing shoes for bushing pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910633499.2A CN110206498A (en) | 2019-07-15 | 2019-07-15 | One kind reinforcing centering drillable metal casing shoes for bushing pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110206498A true CN110206498A (en) | 2019-09-06 |
Family
ID=67797390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910633499.2A Pending CN110206498A (en) | 2019-07-15 | 2019-07-15 | One kind reinforcing centering drillable metal casing shoes for bushing pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110206498A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2451150C1 (en) * | 2010-11-13 | 2012-05-20 | Государственное образовательное учреждение высшего профессионального образования Российский государственный университет нефти и газа имени И.М. Губкина | Multihole well construction method |
| CN103527138A (en) * | 2013-10-28 | 2014-01-22 | 中国石油集团川庆钻探工程有限公司长庆固井公司 | Float collar and float shoe device special for horizontal well |
| CN203756098U (en) * | 2014-04-04 | 2014-08-06 | 中国地质科学院探矿工艺研究所 | Liner tube device for plugging side drilling window of casing windowing |
| CN204040997U (en) * | 2014-06-27 | 2014-12-24 | 吴宪文 | From grouting floating hoop float shoe |
| CN104514516A (en) * | 2013-09-30 | 2015-04-15 | 扬州市油田金达实业有限公司 | Automatic grouting float collar |
| CN105064949A (en) * | 2015-08-05 | 2015-11-18 | 中国石油集团川庆钻探工程有限公司 | Cement slurry backflow preventing device for drilling liner cementing |
| CN210564404U (en) * | 2019-07-15 | 2020-05-19 | 辽宁昆成实业有限公司 | Be used for bushing pipe to consolidate centering drillable casing shoe |
-
2019
- 2019-07-15 CN CN201910633499.2A patent/CN110206498A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2451150C1 (en) * | 2010-11-13 | 2012-05-20 | Государственное образовательное учреждение высшего профессионального образования Российский государственный университет нефти и газа имени И.М. Губкина | Multihole well construction method |
| CN104514516A (en) * | 2013-09-30 | 2015-04-15 | 扬州市油田金达实业有限公司 | Automatic grouting float collar |
| CN103527138A (en) * | 2013-10-28 | 2014-01-22 | 中国石油集团川庆钻探工程有限公司长庆固井公司 | Float collar and float shoe device special for horizontal well |
| CN203756098U (en) * | 2014-04-04 | 2014-08-06 | 中国地质科学院探矿工艺研究所 | Liner tube device for plugging side drilling window of casing windowing |
| CN204040997U (en) * | 2014-06-27 | 2014-12-24 | 吴宪文 | From grouting floating hoop float shoe |
| CN105064949A (en) * | 2015-08-05 | 2015-11-18 | 中国石油集团川庆钻探工程有限公司 | Cement slurry backflow preventing device for drilling liner cementing |
| CN210564404U (en) * | 2019-07-15 | 2020-05-19 | 辽宁昆成实业有限公司 | Be used for bushing pipe to consolidate centering drillable casing shoe |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |