CN105649572A - Redressing type float shoe - Google Patents
Redressing type float shoe Download PDFInfo
- Publication number
- CN105649572A CN105649572A CN201610180707.4A CN201610180707A CN105649572A CN 105649572 A CN105649572 A CN 105649572A CN 201610180707 A CN201610180707 A CN 201610180707A CN 105649572 A CN105649572 A CN 105649572A
- Authority
- CN
- China
- Prior art keywords
- reaming
- float shoe
- bar
- redressing
- housing
- 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
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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
-
- 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
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/002—Destroying the objects to be fished, e.g. by explosive means
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
-
- 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
- E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
- E21B2200/05—Flapper valves
Abstract
The invention discloses a redressing type float shoe which comprises a casing and a shoe leading head connected to the lower portion of the casing. A plurality of redressing strips are protruded on the outer surface of the casing and are spirally evenly distributed, and the hard alloy particles are subject to covering welding outside the redressing strips. The redressing type float shoe can achieve a function of removing obstruction and expanding a well hole, lower construction difficulty, improve working efficiency, reduce cost and achieve safety production.
Description
Technical field
The present invention relates to cementing equipment field, particularly relate to a kind of reaming formula float shoe.
Background technology
Cementing float shoe conventional at present, all without the effect of reaming, when casing job, the tight point meeting squeezing bushing on the borehole wall, make to transfer sleeve pipe and be hampered and make sleeve pipe be deformed, have a strong impact on cementing quality.
Summary of the invention
What present invention mainly solves technical problem is that: for the deficiencies in the prior art, it is provided that a kind of reaming formula float shoe, it is possible to realizes abrading the function hindering and expanding well, reduces difficulty of construction, improve work efficiency, save cost, it is achieved safety in production.
For solving above-mentioned technical problem, the technical scheme that the present invention adopts is: provide a kind of reaming formula float shoe, including housing and the guide shoe head being connected to lower housing portion, the outer surface of described housing is protruding with some reaming bars, described reaming bar is uniformly distributed in the shape of a spiral, and the outside of described reaming bar is covered and is welded with hard alloy particle.
In a preferred embodiment of the present invention, described reaming bar has 4-6 bar.
In a preferred embodiment of the present invention, described reaming bar is that left-handed shape is uniformly distributed.
In a preferred embodiment of the present invention, the side opening of every described reaming bar is provided with side opening.
In a preferred embodiment of the present invention, described side opening has 3-4.
In a preferred embodiment of the present invention, described enclosure interior includes back-pressure valve, valve seat and orifice plate, described valve seat is connected with described housing seal, described orifice plate is fixed in described housing, and it is positioned at the lower section of described valve seat, the outer surface of described back-pressure valve is arranged with spring, and described back-pressure valve is fixed in described housing by described spring and orifice plate.
In a preferred embodiment of the present invention, the top of described housing is connected to sleeve pipe.
The invention has the beneficial effects as follows: by the helical form reaming bar protruding in hull outside, and cover weldering hard alloy particle in the outside of reaming bar, if meeting with obstruction when making setting of casing, hard alloy particle outside reaming bar can abrade hindering, and repairs the borehole wall, and expands well, reduce difficulty of construction, improve work efficiency, save cost, it is achieved safety in production.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of reaming formula float shoe of the present invention;
In accompanying drawing, the labelling of each parts is as follows: 1, housing 2, reaming bar 3, guide shoe head 4, valve seat 5, back-pressure valve 6, spring 7, orifice plate 8, side opening.
Detailed description of the invention
Below in conjunction with accompanying drawing, presently preferred embodiments of the present invention is described in detail, so that advantages and features of the invention can be easier to be readily appreciated by one skilled in the art, thus protection scope of the present invention being made apparent clear and definite defining.
Referring to Fig. 1, the embodiment of the present invention includes:
A kind of reaming formula float shoe, including: housing 1, reaming bar 2, guide shoe head 3, valve seat 4, back-pressure valve 5, spring 6 and orifice plate 7.
Containing box thread on described housing 1, top is bolted with sleeve pipe, and bottom is spirally connected described guide shoe head 3.
Described reaming bar 2 protrudes from the outside of described housing 1, it is uniformly distributed in the shape of a spiral in the outside of described housing 1, the present embodiment is left-handed, and described reaming bar 2 has 4-6 bar, the outside of every reaming bar 2 is all covered and is welded with hard alloy particle, if meeting with obstruction during setting of casing, it is possible to obstruction abraded, repair the borehole wall.
The side opening of every described reaming bar 2 is provided with side opening 8, and described side opening 8 has 3-4, is 3, can be used for spraying water in the present embodiment, and the mud and the foreign material that bond reaming bar 2 are rinsed well, and auxiliary reaming bar carries out abrading obstruction work, and washes away the borehole wall.
Described valve seat 4 is sealedly connected on the inside of described housing 1, and be threadably secured, described orifice plate 7 is fixedly mounted in described housing 1, and it is positioned at the lower section of described valve seat 4, described spring 6 is sheathed on the outer surface of described back-pressure valve 5, and described back-pressure valve 5 is fixed in described housing 1 by described spring 6 and orifice plate 7.
Present invention is disclosed a kind of reaming formula float shoe, by the helical form reaming bar protruding in hull outside, and cover weldering hard alloy particle in the outside of reaming bar so that if meeting with obstruction during setting of casing, the hard alloy particle outside reaming bar can abrade hindering, the finishing borehole wall, and expand well, reduce difficulty of construction, improve work efficiency, save cost, it is achieved safety in production.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention and accompanying drawing content to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all in like manner include the scope of patent protection in the present invention.
Claims (7)
1. a reaming formula float shoe, including housing and the guide shoe head being connected to lower housing portion, it is characterised in that the outer surface of described housing is protruding with some reaming bars, described reaming bar is uniformly distributed in the shape of a spiral, and the outside of described reaming bar is covered and is welded with hard alloy particle.
2. reaming formula float shoe according to claim 1, it is characterised in that described reaming bar has 4-6 bar.
3. reaming formula float shoe according to claim 1, it is characterised in that described reaming bar is that left-handed shape is uniformly distributed.
4. reaming formula float shoe according to claim 1, it is characterised in that the side opening of every described reaming bar is provided with side opening.
5. reaming formula float shoe according to claim 4, it is characterised in that described side opening has 3-4.
6. reaming formula float shoe according to claim 1, it is characterized in that, described enclosure interior includes back-pressure valve, valve seat and orifice plate, described valve seat is connected with described housing seal, described orifice plate is fixed in described housing, and it being positioned at the lower section of described valve seat, the outer surface of described back-pressure valve is arranged with spring, and described back-pressure valve is fixed in described housing by described spring and orifice plate.
7. reaming formula float shoe according to claim 1, it is characterised in that the top of described housing is connected to sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610180707.4A CN105649572A (en) | 2016-03-28 | 2016-03-28 | Redressing type float shoe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610180707.4A CN105649572A (en) | 2016-03-28 | 2016-03-28 | Redressing type float shoe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105649572A true CN105649572A (en) | 2016-06-08 |
Family
ID=56494732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610180707.4A Pending CN105649572A (en) | 2016-03-28 | 2016-03-28 | Redressing type float shoe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105649572A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030226691A1 (en) * | 2002-06-07 | 2003-12-11 | Komatsu Ltd. | Ground drilling machine |
| CN203394403U (en) * | 2013-07-25 | 2014-01-15 | 牡丹江北方机械制造有限责任公司 | Drifting reaming type float shoe |
| CN203452724U (en) * | 2013-08-30 | 2014-02-26 | 中国石油集团川庆钻探工程有限公司 | Casing float shoe |
| CN203783489U (en) * | 2014-03-21 | 2014-08-20 | 中国石油集团川庆钻探工程有限公司 | Flow-controlled hydrodynamic cutting guide shoe |
| CN204266947U (en) * | 2014-11-20 | 2015-04-15 | 中国石油集团长城钻探工程有限公司 | A kind of rotation reaming formula guide shoe |
| CN205618127U (en) * | 2016-03-28 | 2016-10-05 | 常熟市石油固井工具有限公司 | Reaming formula float shoe |
-
2016
- 2016-03-28 CN CN201610180707.4A patent/CN105649572A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030226691A1 (en) * | 2002-06-07 | 2003-12-11 | Komatsu Ltd. | Ground drilling machine |
| CN203394403U (en) * | 2013-07-25 | 2014-01-15 | 牡丹江北方机械制造有限责任公司 | Drifting reaming type float shoe |
| CN203452724U (en) * | 2013-08-30 | 2014-02-26 | 中国石油集团川庆钻探工程有限公司 | Casing float shoe |
| CN203783489U (en) * | 2014-03-21 | 2014-08-20 | 中国石油集团川庆钻探工程有限公司 | Flow-controlled hydrodynamic cutting guide shoe |
| CN204266947U (en) * | 2014-11-20 | 2015-04-15 | 中国石油集团长城钻探工程有限公司 | A kind of rotation reaming formula guide shoe |
| CN205618127U (en) * | 2016-03-28 | 2016-10-05 | 常熟市石油固井工具有限公司 | Reaming formula float shoe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160608 |
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| RJ01 | Rejection of invention patent application after publication |