CN203961928U - Open-hole horizontal well acid cleaning filling device - Google Patents
Open-hole horizontal well acid cleaning filling device Download PDFInfo
- Publication number
- CN203961928U CN203961928U CN201420267247.5U CN201420267247U CN203961928U CN 203961928 U CN203961928 U CN 203961928U CN 201420267247 U CN201420267247 U CN 201420267247U CN 203961928 U CN203961928 U CN 203961928U
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- tube
- intubate
- outer tube
- inner tube
- butterfly plate
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Abstract
The utility model is open-hole horizontal well acid cleaning filling device, for Exploitation Level of Oilfield well completion.This device comprises outer tube, and outer tube internal upper part is installed Butterfly plate valve, and intubate is inserted from Butterfly plate valve endoporus, between Butterfly plate valve and intubate, has combined seal ring; Butterfly plate valve is installed filling sealed tube below, and intubate enters from the centre bore of filling sealed tube, pushes plug open stifled, makes outer pore, inner orifice and insertion hole in same level position; Filling sealed tube is installed signal plate below, and signal plate is fixed on outer tube with signal nail, is promoted when descending, signal nail to be cut off by intubate when plug is stifled, and signal plate is descending.Owing to being provided with filling sealed tube, after intubate is extracted out, plug gets lodged in return under spring-force driven dual, and the sealing ring that is arranged on the stifled external surface of plug can be gravel or other eliminating impurities stayed in pipe, thereby has improved sealing effectiveness.
Description
Technical field
The utility model relates to the completion tool using in oil field development, is open-hole horizontal well acid cleaning filling device specifically, for open-hole horizontal well completion.
Background technology
Loose sand reservoir adopts after bore hole sand screen sand control completion, and the mud cake that residual drilling mud forms at the borehole wall can stop up near wellbore zone, hinders oil gas and enters pit shaft.To pollutant be replaced out by pickling, reach releasing oil layer pollution, reach the object of recovering reservoir permeability.For powder packsand and high shale content oil reservoir, also need be at screen casing annular pack gravel, to reach the object that improves sand control success rate and extend the sand control life.Need be lowered to respectively different instruments for slurry, pickling mud cake, gravel pack in the past, complex structure, complex operation, poor reliability, long construction period, operating cost are high, and in construction, pickling, device for filling are prone to that circulation is obstructed, the problem such as be not closed completely, be constructed into power generally not high, restricted applying of bore hole sand screen sand control completion technology.August 23 2011 Chinese patent application day, application number 201120356000.7, utility model title " horizontal well tube outer acid cleaning filling instrument " disclose a kind of can pickling and the instrument of the outer pack gravel of pipe, this instrument combines pickling and gravel pack, and one-stop operation just can complete two procedures.But in this technology, use two cover Butterfly plate valves, after intubate is extracted out, the pack gravel staying in the pipe of down-hole, other foreign material that also likely exist may keep off and cause poorly sealedly at valve plate place, and gravel flows to into pit shaft with producing oil again, thereby causes sand control to lose efficacy.
Summary of the invention
For solving the problems of the technologies described above, the utility model provides open-hole horizontal well acid cleaning filling device, and it has adopted Butterfly plate valve and the stifled two kinds of sealing means combination of plug, can prevent better that pack gravel from entering in pipe, has improved sealing effectiveness.
The technical solution of the utility model is: open-hole horizontal well acid cleaning filling device, comprise outer tube, end cap is installed in outer tube lower end, outer tube internal upper part is installed Butterfly plate valve, Butterfly plate valve is fixed on outer tube with staple, between Butterfly plate valve and outer tube, sealing ring is installed, intubate is inserted from Butterfly plate valve endoporus, between Butterfly plate valve and intubate, has combined seal ring; Butterfly plate valve is installed filling sealed tube below, intubate enters from the centre bore of filling sealed tube, pushes plug open stifled, makes outer pore, inner orifice and insertion hole in same level position, filling sealed tube is fixed on outer tube with staple, between filling sealed tube and outer tube, sealing ring is installed; Filling sealed tube is installed signal plate below, and signal plate is fixed on outer tube with signal nail, is promoted when descending, signal nail to be cut off by intubate when plug is stifled, and signal plate is descending.
Compared with prior art, the beneficial effects of the utility model are, owing to being provided with filling sealed tube, after intubate is extracted out, plug gets lodged in return under spring-force driven dual, and the sealing ring that is arranged on the stifled external surface of plug can be gravel or other eliminating impurities stayed in pipe, thereby has improved sealing effectiveness.
Brief description of the drawings
Fig. 1 is that open-hole horizontal well acid cleaning filling device intubate is inserted structure graph.
Fig. 2 is that open-hole horizontal well acid cleaning filling device intubate is not inserted structure graph.
Fig. 3 is cannula structures figure.
Fig. 4 is the A-A sectional drawing in Fig. 2.
Fig. 5 is the B-B sectional drawing in Fig. 3.
Fig. 6 is the plane outspread drawing of intubate appearance gathering sill.
Detailed description of the invention
Open-hole horizontal well acid cleaning filling apparatus structure is shown in Fig. 1, and open-hole horizontal well acid cleaning filling device intubate is not inserted structure graph and seen Fig. 2.The common formation Butterfly plate valve of butterfly plate valve seat 2, butterfly plate 7, bolt and torsion spring 6.Butterfly plate valve seat 2 is annulus that have endoporus, and its endoporus lower end is internal conical surface, and butterfly plate 7 is arranged on butterfly plate valve seat 2 lower ends by bolt and torsion spring 6, and under the effect of torsion spring, butterfly plate 7 can cover the centre bore of Butterfly plate valve automatically.End cap 20 is installed in outer tube 23 lower ends, and outer tube 23 internal upper parts are installed Butterfly plate valve.Butterfly plate valve is fixed on outer tube 23 with staple 4, and sealing ring 3 is installed between Butterfly plate valve and outer tube, and intubate 22 is inserted from Butterfly plate valve endoporus, between Butterfly plate valve and intubate 22, has combined seal ring 5.Inner tube 8, plug are stifled 13, spring 15 and pressure cap 16 is common forms filling sealed tube.Butterfly plate valve is installed filling sealed tube below, intubate 22 enters from the centre bore of filling sealed tube, push plug stifled 13 open, make outer pore 51, inner orifice 52 and insertion hole 53 in same level position, filling sealed tube is fixed on outer tube 23 with staple 11, and sealing ring 9 is installed between filling sealed tube and outer tube 23; Filling sealed tube is installed signal plate 18 below, and signal plate 18 use signals nails 19 are fixed on outer tube 23, and when plug stifled 13 is promoted when descending, signal nail 19 to be cut off by intubate 22, signal plate 18 is descending.Between intubate 22 and inner tube 8, combined seal ring 10 is installed.
Inner tube 8 appearances are that ladder is cylindrical, up big and down small, and inner tube 8 upper end external diameters are large and match with outer tube 23 internal diameters, inner tube 8 lower outer diameter diminish, inner tube 8 lower ends connect pressure cap 16, and pressure cap 16 use staples 17 are fixed on outer tube 23, between outer tube 23 and inner tube 8, form filling chamber 41; Inner orifice 52 is established at inner tube 8 middle parts; Inner tube 8 centre bores are an axial step hole, up-small and down-big, step 61 in reducing place forms inner tube.In the centre bore of inner tube 8, in inner tube 8 tops, hole, be provided with feather key 31, as shown in Figure 4, feather key 31 is installed through inner tube 8, and forms projection in inner tube 8 centre bores.
Plug stifled 13 is that a centre is thick, the ladder cylinder that two is thin, the reducing place of upper cylinder and middle cylinder forms plug and blocks step 62, the centre bore of upper cylinder, middle cylinder and inner tube 8 matches, lower cylinder matches with the endoporus of pressure cap 16, between lower cylinder and inner tube in pressure cap mounting spring 15 in more than 16 chambeies; Be not subject under intubate 22 promotion states, the upper cylinder appearance of plug stifled 13 in inner orifice 52 locate up and down respectively establish sealing ring 12 and sealing ring 14, and utilize in inner tube step 61 and plug to block step 62 to cooperatively interact and position.
See Fig. 3 and Fig. 5, intubate 22 is the pipes that shut lower end, and gathering sill 71 is established in the outside lower end of intubate 22, and insertion hole 53 is set between gathering sill 71.As shown in Figure 6, the expansion plan view of gathering sill 71 is the pennant shape of handstand.Insert inner tube 8 centre bores when intubate 22, feather key 31 enters gathering sill 71 from the bottom of gathering sill 71, and finally arrives the top of gathering sill 71, at this moment, the neat through hole that forms of insertion hole 53 and inner orifice 52 punchings, and and outer pore 51 in a plane.
The same with other completion tool, box cupling 1 can be established in outer tube 23 upper ends, to be connected with other instrument or sleeve pipe.Box cupling 21 also can be established to be connected with other instrument or oil pipe in intubate 22 upper ends.
Claims (5)
1. open-hole horizontal well acid cleaning filling device, comprise outer tube, end cap is installed in outer tube lower end, outer tube internal upper part is installed Butterfly plate valve, Butterfly plate valve is fixed on outer tube with staple, between Butterfly plate valve and outer tube, sealing ring is installed, intubate is inserted from Butterfly plate valve endoporus, between Butterfly plate valve and intubate, there is combined seal ring, it is characterized in that, Butterfly plate valve is installed filling sealed tube below, intubate enters from the centre bore of filling sealed tube, push plug open stifled, make outer pore, inner orifice and insertion hole are in same level position, filling sealed tube is fixed on outer tube with staple, between filling sealed tube and outer tube, sealing ring is installed, filling sealed tube is installed signal plate below, and signal plate is fixed on outer tube with signal nail, is promoted when descending, signal nail to be cut off by intubate when plug is stifled, and signal plate is descending.
2. open-hole horizontal well acid cleaning filling device according to claim 1, is characterized in that, described filling sealed tube comprises that inner tube, plug are stifled, spring and pressure cap; Inner tube appearance is that ladder is cylindrical, up big and down small, and inner tube upper end external diameter is large and match with outer tube diameter, and inner tube lower outer diameter diminishes, and inner tube lower end connects pressure cap, between outer tube and inner tube, forms filling chamber; Inner orifice is established at inner tube middle part; Inner tube centre bore is an axial step hole, up-small and down-big, step in reducing place forms inner tube; Plug is stifled is that a centre is thick, the ladder cylinder that two is thin, the reducing place of upper cylinder and middle cylinder forms plug and blocks step, and the centre bore of upper cylinder, middle cylinder and inner tube matches, lower cylinder matches with the endoporus of pressure cap, mounting spring in the chamber more than pressure cap between lower cylinder and inner tube; Be not subject under intubate promotion state, upper cylinder appearance locates respectively to establish sealing ring up and down in inner orifice; In inner tube centre bore, combined seal ring is established in upper end.
3. open-hole horizontal well acid cleaning filling device according to claim 2, is characterized in that, in the centre bore of described inner tube, in inner orifice top, is provided with feather key.
4. open-hole horizontal well acid cleaning filling device according to claim 1, is characterized in that, described intubate is a pipe that shut lower end, and gathering sill is established in the outside lower end of intubate, and insertion hole is set between gathering sill.
5. open-hole horizontal well acid cleaning filling device according to claim 4, is characterized in that, the expansion plan view of described gathering sill is the pennant shape of handstand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420267247.5U CN203961928U (en) | 2014-05-23 | 2014-05-23 | Open-hole horizontal well acid cleaning filling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420267247.5U CN203961928U (en) | 2014-05-23 | 2014-05-23 | Open-hole horizontal well acid cleaning filling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203961928U true CN203961928U (en) | 2014-11-26 |
Family
ID=51922527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420267247.5U Expired - Fee Related CN203961928U (en) | 2014-05-23 | 2014-05-23 | Open-hole horizontal well acid cleaning filling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203961928U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685622A (en) * | 2018-07-06 | 2020-01-14 | 中国石油化工股份有限公司 | Uniform jet flow blockage removal and filling integrated process pipe column and method |
-
2014
- 2014-05-23 CN CN201420267247.5U patent/CN203961928U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685622A (en) * | 2018-07-06 | 2020-01-14 | 中国石油化工股份有限公司 | Uniform jet flow blockage removal and filling integrated process pipe column and method |
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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: 20141126 Termination date: 20180523 |