CN201025008Y - Sand filling tool for oil water well - Google Patents
Sand filling tool for oil water well Download PDFInfo
- Publication number
- CN201025008Y CN201025008Y CNU2007200199877U CN200720019987U CN201025008Y CN 201025008 Y CN201025008 Y CN 201025008Y CN U2007200199877 U CNU2007200199877 U CN U2007200199877U CN 200720019987 U CN200720019987 U CN 200720019987U CN 201025008 Y CN201025008 Y CN 201025008Y
- Authority
- CN
- China
- Prior art keywords
- sand
- oil
- groove
- way sealing
- sealing device
- 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.)
- Expired - Fee Related
Links
- 239000004576 sand Substances 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 21
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 239000010985 leather Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 6
- 239000003129 oil well Substances 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000011010 flushing procedure Methods 0.000 abstract 2
- 238000005406 washing Methods 0.000 description 6
- 230000002153 concerted effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model relates to a sand flushing tool for oil-water well. A small screw at the lower part of a transfer joint is connected with the upper part of an inner tube. A big screw at the lower part of the transfer joint is connected with the upper part of a connector head, and the lower part of the connector head is connected with the upper part of a unilateral seal device. The lower part of the unilateral seal device is connected with the upper part of the lower joint. The inner tube is arranged in the unilateral seal device, and an annular passage is arranged between the inner tube and the unilateral seal device. The lower part of the inner tube is inserted in the lower joint. A radial through groove is arranged on the transfer joint and communicated with the annular passage. The transfer joint is provided with a vertical through groove which is communicated with a screw inner hole at the upper part of the transfer joint. The vertical through groove is communicated with the annular passage. The lower joint has a communication hole communicated with the annular passage. The sand flushing water flushes positively through the radial through groove and the inner tube. The mixture of liquid and sand goes out from the communication hole, the annular passage, the vertical through hole and the inner hole of an oil tube. For the inner hole of the oil tube has small flowing area, high flowing speed and strong sand removing capacity, the sands flushed up can be carried to the ground so as to assure normal production of the oil wells.
Description
One, technical field
The utility model belongs to the oilfield oil well power tool, and particularly a kind of oil-water well fills the sand instrument.
Two, background technology
Oil-water well in process of production, sand in the stratum can be carried out the stratum by profit, what have can be carried into ground with liquid stream, the meeting that has is deposited on wellbore bottom, can will influence oil-water well production when the sand that is deposited on wellbore bottom increases, oil well is fluid not, and well is annotated and do not intake, recover the oil-water well ordinary production, the sand that must will be deposited in the pit shaft is gone out pit shaft.Sand washing is that sand cleaning fluid is squeezed in oil pipe, enters behind the shaft bottom sand dashed from oil casing annular space to return out, thereby sand is dashed to ground.But when casing inner diameter was big, the flow velocity of liquid sand when tubing and casing is returned out was low, and prop-carrying capacity is low, and sand can sink, and sand can not be dashed to ground, can't finish sand washing work, and oil well can not ordinary production.
Three, summary of the invention
The purpose of this utility model provides a kind of oil-water well and fills the sand instrument, makes it can increase liquid sand and returns out flow velocity, the sand of large cased well can be gone out ground.
The purpose of this utility model is achieved in that by crossover sub, coupling head, the one-way sealing device, interior pipe, lower contact is formed, crossover sub bottom minor thread connects with interior pipe top, crossover sub bottom major thread connects with coupling head top, the coupling head bottom connects with one-way sealing device top, one-way sealing device bottom connects with lower contact top, interior pipe is in the one-way sealing device, between interior pipe and the one-way sealing device circular passage is arranged, insert in the lower contact interior pipe bottom, radially groove is arranged on the crossover sub, radially groove communicates with interior pipe orifice, vertical groove is arranged on the crossover sub, and vertical groove communicates with crossover sub top threaded interior hole, and vertical groove communicates with the circular passage, linked hole is arranged in the lower contact, and linked hole communicates with the circular passage.
The beneficial effects of the utility model are: sand washing water from oil casing annular space downwards from radially groove, interior pipe orifice carry out square impact to pit shaft sand downwards, the liquid sand mixture upwards returns out through the oil pipe endoporus from linked hole, circular passage, vertical groove, because oil pipe endoporus area of passage is little, the flow velocity height, it is strong to take the sand concerted effort, can all be carried into ground towards the sand that rises, guarantee the oil well ordinary production.
Four, description of drawings
Accompanying drawing is the assembling drawing of the utility model embodiment.
Five, the specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described.
By crossover sub 1, coupling head 3, one-way sealing device 5, interior pipe 6, lower contact 7 is formed, crossover sub 1 bottom minor thread connects with interior pipe 6 tops, crossover sub 1 bottom major thread connects with coupling head 3 tops, coupling head 3 bottoms connect with one-way sealing device 5 tops, one-way sealing device 5 bottoms connect with lower contact 7 tops, interior pipe 6 is in one-way sealing device 5, between interior pipe 6 and the one-way sealing device 5 circular passage 4 is arranged, insert in the lower contact 7 interior pipe 6 bottoms, radially groove 9 is arranged on the crossover sub 1, radially groove 9 communicates with interior pipe 6 endoporus, vertical groove 2 is arranged on the crossover sub 1, and vertical groove 2 communicates with crossover sub 1 top threaded interior hole, and vertical groove 2 communicates with circular passage 4, linked hole 8 is arranged in the lower contact 7, and linked hole 8 communicates with circular passage 4.The one-way sealing leather cup is arranged on the one-way sealing device 5.
During sand washing, sand washing water enters from oil casing annular space, under the one-way sealing leather cup effect on the one-way sealing device 5, sand washing water carries out square impact to pit shaft sand downwards from the endoporus of groove 9, interior pipe 6 radially, and the liquid sand mixture upwards returns out through the oil pipe endoporus from linked hole 8, circular passage 4, vertical groove 2, owing to oil pipe endoporus area of passage is little, the flow velocity height, it is strong to take the sand concerted effort, can all be carried into ground towards the sand that rises, and guarantees the oil well ordinary production.
Claims (2)
1. an oil-water well fills the sand instrument, it is characterized in that: by crossover sub (1), coupling head (3), one-way sealing device (5), interior pipe (6), lower contact (7) is formed, crossover sub (1) bottom minor thread connects with interior pipe (6) top, crossover sub (1) bottom major thread connects with coupling head (3) top, coupling head (3) bottom connects with one-way sealing device (5) top, one-way sealing device (5) bottom connects with lower contact (7) top, interior pipe (6) is in one-way sealing device (5), between interior pipe (6) and the one-way sealing device (5) circular passage (4) is arranged, insert in the lower contact (7) interior pipe (6) bottom, radially groove (9) is arranged on the crossover sub (1), radially groove (9) communicates with interior pipe (6) endoporus, vertical groove (2) is arranged on the crossover sub (1), vertical groove (2) communicates with crossover sub (1) top threaded interior hole, vertical groove (2) communicates with circular passage (4), and linked hole (8) is arranged in the lower contact (7), and linked hole (8) communicates with circular passage (4).
2. oil-water well according to claim 1 fills the sand instrument, it is characterized in that: the one-way sealing device has the one-way sealing leather cup on (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200199877U CN201025008Y (en) | 2007-04-09 | 2007-04-09 | Sand filling tool for oil water well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200199877U CN201025008Y (en) | 2007-04-09 | 2007-04-09 | Sand filling tool for oil water well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201025008Y true CN201025008Y (en) | 2008-02-20 |
Family
ID=39098866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200199877U Expired - Fee Related CN201025008Y (en) | 2007-04-09 | 2007-04-09 | Sand filling tool for oil water well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201025008Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112459735A (en) * | 2020-11-02 | 2021-03-09 | 中海油田服务股份有限公司 | Rotational flow sand washing process pipe column |
-
2007
- 2007-04-09 CN CNU2007200199877U patent/CN201025008Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112459735A (en) * | 2020-11-02 | 2021-03-09 | 中海油田服务股份有限公司 | Rotational flow sand washing process pipe column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080220 Termination date: 20100409 |