CN205206799U - Self -cleaning embedded screen pipe of whirl - Google Patents
Self -cleaning embedded screen pipe of whirl Download PDFInfo
- Publication number
- CN205206799U CN205206799U CN201521080482.2U CN201521080482U CN205206799U CN 205206799 U CN205206799 U CN 205206799U CN 201521080482 U CN201521080482 U CN 201521080482U CN 205206799 U CN205206799 U CN 205206799U
- Authority
- CN
- China
- Prior art keywords
- self
- pipe
- screen casing
- cleaning
- tubing
- 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.)
- Active
Links
Landscapes
- Filtration Of Liquid (AREA)
Abstract
The utility model discloses a self -cleaning embedded screen pipe of whirl, including installing the embedded filter tube in the screen pipe overcoat, the screen pipe overcoat include tubing coupling and with tubing coupling threaded connection's tubing nipple, embedded filter tube includes toper pipe and conduit saddle, toper pipe top by the conduit saddle is fixed in the tubing nipple. Force like this and formed the whirl and reach self -cleaning mesh when the tubing nipple lower extreme gets into the toper filter tube by filtering medium, and because tapered existence makes the sand grain hardly pile up on the pipe wall is filtered in the toper under the dual function of gravity whirl to realize the purpose of long -term sand control, the number of times of the holddown operation that significantly reduces provides the equipment guarantee for reduction in production cost, constnat rate of production.
Description
Technical field
The utility model belongs to oil, natural gas and coal-bed gas exploitation field, particularly the self-cleaning embedded screen casing of a kind of eddy flow.
Background technology
In exploitation of oil-gas field sand output well, go out the exceptional wells such as coal dust well and bring difficulty to oil recovery gas production work, and affect exploitation rate and the recovery ratio of oil-gas Layer.This exceptional well brings many harm, and the serious well that shakes out forms sand plug at well inner product sand, reduces Oil/gas Well output and even stops production; Increase well-repairing work amount, improve cost of winning; Damage pumping unit etc.Therefore for guaranteeing oil gas field stable high yield, the various effective technology measures of relying mainly on prevention just must be taked to solve this problem.
Cutting seam sieve tube, as one of the instrument of main sand control and anti-coal dust, has because of it intensity is high, cost is low advantage and is applied in the exploitation of oil gas field by increasingly extensive.On domestic and international oil gas field all there is following problem in widely used cutting seam sieve tube at present: sand grains or coal dust can be deposited on screen casing wall, and self-cleaning is poor, easily blocks.
In view of this, special proposition the utility model.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, provides a kind of eddy flow self-cleaning embedded screen casing.
For solving the problems of the technologies described above, the basic conception of the utility model employing technical scheme is: the self-cleaning embedded screen casing of a kind of eddy flow, comprise the inline filtration pipe be arranged in screen casing overcoat, the tubing nipple that described screen casing overcoat comprises tubing coupling and is threaded with described tubing coupling; Described inline filtration pipe comprises taper pipe and conduit saddle, and described taper pipe top is fixed in described tubing nipple by described conduit saddle.
Further, described taper pipe is vertically welded on described conduit saddle, and the axis of described taper pipe is overlapped with the axis of described tubing nipple.
Further, the tube wall of described taper pipe is evenly distributed with the slot becoming 10-30 degree angle with described axis.
Further, the width of described slot is 0.15-0.3mm.
Further, described conduit saddle is arranged in described tubing nipple by pin.
Further, the length of described tubing nipple is 2m or 3m, and pipe external diameter is 73mm or 89mm.
After adopting technique scheme, the utility model compared with prior art has following beneficial effect: the self-cleaning embedded screen casing of eddy flow is primarily of screen casing overcoat and inline filtration pipe composition.Inline filtration pipe is fixed on tubing nipple inside by conduit saddle, forces like this to be filtered medium enters conical filter pipe during from tubing nipple lower end form eddy flow and reach self-cleaning object; And due to the existence of tapering, under the double action of gravity eddy flow, make sand grains be difficult to be deposited on conical filter tube wall, thus realize the object of long-acting sand control, greatly reduce the number of times of holddown operation, for reducing cost of production, constant rate of production provides equipment guarantee.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is B-B sectional drawing of the present utility model.
In figure: 1-tubing coupling; 2-tubing nipple; 3-taper pipe; 4-conduit saddle; 5-pin; 6-slot.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, to help understanding content of the present utility model.
As illustrated in fig. 1 and 2, the self-cleaning embedded screen casing of eddy flow mainly comprises screen casing overcoat and inline filtration pipe, screen casing overcoat is processed threaded tubing nipple 2 by tubing coupling 1 and two ends and is formed, and tubing nipple 2 length is divided into 2 meters, 3 meters two kinds, and pipe external diameter is divided into 73mm, 89mm two kinds; Inline filtration pipe is made up of taper pipe 3 and conduit saddle 4, and taper pipe 3 has angle with axis and on tube wall, is evenly distributed with some become 10-30 degree angle slot 6 with axis, and slot 6 width is 0.15-0.3mm.
Slot 6 and axis establish the angle being embedded with 10-30 degree, and width is set embedding as 0.15-0.3mm, is so more beneficial to liquid flow, form eddy flow, not easily form blocking, add effective life, therefore the optimal design of this slot enhances the self-cleaning ability of this screen casing and decreases maintenance cost.
Tubing coupling 1 is threadedly attached to one end of tubing nipple 2; Taper pipe 3 is vertically welded on conduit saddle 4, guarantees that both axis overlap; Finally inline filtration pipe is arranged on tubing nipple 2 by the pin 5 on conduit saddle 4, the self-cleaning embedded screen casing of final composition eddy flow.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. the self-cleaning embedded screen casing of eddy flow, comprise the inline filtration pipe be arranged in screen casing overcoat, it is characterized in that, the tubing nipple (2) that described screen casing overcoat comprises tubing coupling (1) and is threaded with described tubing coupling (1); Described inline filtration pipe comprises taper pipe (3) and conduit saddle (4), and described taper pipe (3) top is fixed in described tubing nipple (2) by described conduit saddle (4).
2. the self-cleaning embedded screen casing of eddy flow as claimed in claim 1, it is characterized in that, described taper pipe (3) is vertically welded on described conduit saddle (4), and the axis of described taper pipe (3) is overlapped with the axis of described tubing nipple (2).
3. the self-cleaning embedded screen casing of eddy flow as claimed in claim 2, is characterized in that, the tube wall of described taper pipe (3) is evenly distributed with the slot (6) becoming 10-30 degree angle with described axis.
4. the self-cleaning embedded screen casing of eddy flow as claimed in claim 3, it is characterized in that, the width of described slot (6) is 0.15-0.3mm.
5. the self-cleaning embedded screen casing of eddy flow as described in as arbitrary in claim 1-4, it is characterized in that, described conduit saddle (4) is arranged in described tubing nipple (2) by pin (5).
6. the self-cleaning embedded screen casing of eddy flow as described in as arbitrary in claim 1-4, it is characterized in that, the length of described tubing nipple (2) is 2m or 3m, and pipe external diameter is 73mm or 89mm.
7. the self-cleaning embedded screen casing of eddy flow as claimed in claim 5, it is characterized in that, the length of described tubing nipple (2) is 2m or 3m, and pipe external diameter is 73mm or 89mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521080482.2U CN205206799U (en) | 2015-12-23 | 2015-12-23 | Self -cleaning embedded screen pipe of whirl |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521080482.2U CN205206799U (en) | 2015-12-23 | 2015-12-23 | Self -cleaning embedded screen pipe of whirl |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205206799U true CN205206799U (en) | 2016-05-04 |
Family
ID=55844524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521080482.2U Active CN205206799U (en) | 2015-12-23 | 2015-12-23 | Self -cleaning embedded screen pipe of whirl |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205206799U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488277A (en) * | 2018-11-28 | 2019-03-19 | 青岛理工大学 | Layering cage type screening integrated cyclone degassing device |
| CN110469297A (en) * | 2019-09-09 | 2019-11-19 | 中煤科工集团西安研究院有限公司 | The complete hole equipment of coal mine gas extraction directional drilling long range screen casing and method |
-
2015
- 2015-12-23 CN CN201521080482.2U patent/CN205206799U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488277A (en) * | 2018-11-28 | 2019-03-19 | 青岛理工大学 | Layering cage type screening integrated cyclone degassing device |
| CN110469297A (en) * | 2019-09-09 | 2019-11-19 | 中煤科工集团西安研究院有限公司 | The complete hole equipment of coal mine gas extraction directional drilling long range screen casing and method |
| CN110469297B (en) * | 2019-09-09 | 2021-08-20 | 中煤科工集团西安研究院有限公司 | Device and method for completing long-distance sieve tube in coal mine underground gas extraction directional drilling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205206799U (en) | Self -cleaning embedded screen pipe of whirl | |
| CN201963286U (en) | Oil production pipe for reducing water content of central pipe of horizontal well | |
| CN207237451U (en) | A kind of automatically cleaning shale gas returns sewage filtering unit | |
| CN206017131U (en) | A kind of pump hanging component and its chimney filter for coal bed gas well | |
| CN202673264U (en) | Downhole automatic chemical dosing device for oil well | |
| CN202731860U (en) | Sand control screen | |
| CN203925358U (en) | Oil field operation working liquid filtering device | |
| CN205135563U (en) | Oil recovery is frizing device for well | |
| CN205089297U (en) | Multilayer becomes hole sand screen | |
| CN204419156U (en) | Gas-liquid separation device for drilling and grinding bridge plug flowback process of natural gas well | |
| CN204200188U (en) | A kind of oil filter mechanism | |
| CN106925024A (en) | A kind of automatically cleaning shale gas return sewage filtering unit | |
| CN205370931U (en) | Inner tube sand setting formula sand sediment pipe | |
| CN204344037U (en) | Bailing device for horizontal well | |
| CN202690018U (en) | Novel production screen | |
| CN203925316U (en) | A kind of flow string | |
| CN201090191Y (en) | Chute type sand prevention pipe for oil field and oil well | |
| CN201714327U (en) | Overflow prevention device of spray pipe for borehole operation | |
| CN204877393U (en) | Oil production pipe | |
| CN200975334Y (en) | Anti-scaling oil production pump | |
| CN204098860U (en) | A kind of crude processing integrated apparatus | |
| CN203626798U (en) | double-channel gas-liquid separator | |
| CN204457584U (en) | A kind of upper special packer that recovers the oil | |
| CN204492762U (en) | A kind of oil recovery pipe paraffin scraper | |
| CN202596675U (en) | Tubular column for preventing sand and scale blocking of oil well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |