CN101182758A - Oilfield down-hole bailing tub - Google Patents
Oilfield down-hole bailing tub Download PDFInfo
- Publication number
- CN101182758A CN101182758A CNA2007101795595A CN200710179559A CN101182758A CN 101182758 A CN101182758 A CN 101182758A CN A2007101795595 A CNA2007101795595 A CN A2007101795595A CN 200710179559 A CN200710179559 A CN 200710179559A CN 101182758 A CN101182758 A CN 101182758A
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- pipe
- bucket
- bailing
- sand
- hole
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Abstract
An underground bailing bucket used in oil field includes a finial combination. The lower end of the centering combination is connected with a center; the upper end of the centering combination is connected with a lower pipe joint; a lower ball valve base is arranged in the lower pipe joint and the lower ball valve base is provided with a valve ball; the upper end of the lower pipe joint is connected with a desilting pipe and the inside of the desilting pipe is provided with a center pipe; an annular space is arranged between the external wall of the center pipe and the internal wall of the desilting pipe; the lower end of the center pipe is connected with the lower end of the desilting pipe, thus the lower end of the annular space is closed; the upper part of the desilting pipe is provided with an external barrel; the inside of the external barrel is provided with a piston, so as to produce negative pressure through the upper movement of the piston, so the sand deposits in the annular space of the desilting pipe when the sand flow passes the desilting pipe. The beneficial effects of the present invention are simple structure, low price, convenient use, high efficiency of underground bailing, safety and reliability, thus effectively eliminating the deposited sand at the bottom of the well and reducing the number of consequent underground operations.
Description
Technical field
The present invention relates to the oilfield production equipment technical field, is a kind of oilfield down-hole bailing tub.
Background technology
At present, in oil exploitation, along with the passing of oilfield exploitation time, stratum energy descends, and it is more and more serious to shake out.Sand grains flows to into the shaft bottom and piles up gradually with oil and floods oil reservoir, increases flow resistance, reduces output, and severe patient even flood oil reservoir stops production oil well.
For oil well can continue to produce, need remove the sand grains in the oil well, the existing sand equipment that drags for drags for the sand weak effect, and efficient is low, is difficult to satisfy the instructions for use of actual production.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structure, easy to use, down-hole and drag for the high oilfield down-hole bailing tub of sand efficient,, can remove shaft bottom sand post, expose payzone, reduce flow resistance, increase oil production by dragging for the sand operation.
Summary of the invention
For achieving the above object, the present invention takes following technical scheme:
A kind of oilfield down-hole bailing tub, it includes a top assembly, this top assembly is the pipe shape, be connected with top in the lower end of top assembly, the upper end of top assembly is connected with lower pipe connection, in lower pipe connection, be provided with ball valve seat down, this time ball valve seat is provided with valve ball, be connected with sand sediment pipe in the lower pipe connection upper end, in this sand sediment pipe, be provided with middle pipe, be formed with annular space between the inwall of the outer wall of pipe and sand sediment pipe in being somebody's turn to do, lower end of pipe is connected with the lower end of sand sediment pipe in this, makes the annular space lower end be closed, bucket outside sand sediment pipe top is provided with, be provided with piston in the bucket outside this, the outer wall of this piston is with the sealing ring that forms sealing with the inwall of outer bucket, is connected with interior bucket in the upper end of piston, outer bucket is stretched out in the upper end of bucket in being somebody's turn to do, upper end at interior bucket is connected with union, is provided with the upper ball valve seat in last union, and this upper ball valve seat is provided with valve ball.
Described top be to be triangular tip shape, the hexagonal angle of being separated by between the triangular, 45 ° of top rakes.
Sand sediment pipe and outside the bucket between be connected with splice sleeve.
Tong upper end is connected with silk braid outside.
Tong upper side wall is provided with steam vent outside, is provided with steam vent and is connected with bearing pin at the sidewall of last union.
The invention has the beneficial effects as follows: sand efficient height, safe and reliable is dragged in simple in structure, cheap, easy to use, down-hole, can remove the long-pending sand in shaft bottom efficiently, effectively, reduces the underground work number of times that causes therefrom; By dragging for the sand operation, can remove shaft bottom sand post, expose payzone, reduce flow resistance, increase oil production.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of looking up of Fig. 1.
The specific embodiment
Referring to Fig. 1, shown in Figure 2: a kind of oilfield down-hole bailing tub, it includes a top assembly 2, this top assembly is the pipe shape, be connected with top 1 in the lower end of top assembly 2, the upper end of top assembly 2 is connected with lower pipe connection 3, in lower pipe connection 3, be provided with ball valve seat 4 down, this time ball valve seat 4 is provided with valve ball 5, be connected with sand sediment pipe 6 in lower pipe connection 3 upper ends, pipe 7 in this sand sediment pipe 6, being provided with, be formed with annular space 8 between the inwall of the outer wall of pipe 7 and sand sediment pipe 6 in being somebody's turn to do, the lower end of pipe 7 is connected with the lower end of sand sediment pipe 6 in being somebody's turn to do, make annular space 8 lower ends be closed, bucket 10 outside sand sediment pipe 6 tops are provided with, outside this, be provided with piston 11 in the bucket 10, the outer wall of this piston 11 is with the 4 road rubber seal that form sealing with the inwall of outer bucket 10, bucket 13 in the upper end of piston 11 is connected with, outer bucket 10 is stretched out in the upper end of bucket 13 in being somebody's turn to do, upper end at interior bucket 13 is connected with union 15, be provided with upper ball valve seat 16 in last union 15, this upper ball valve seat 16 is provided with valve ball 17.
The effect of piston is: make the inner chamber of outer tube produce negative pressure, be beneficial to top suction sand, make to contain and be with sand flow that sand is deposited in the annular space 8 of sand sediment pipe.
Described top 1 is to be triangular tip shape, the hexagonal angle of being separated by between the triangular, 45 ° of top rakes.Top 1 main effect is: it can be convenient to fully inhale sand to the fragmentation of shaft bottom sand scale.
The upper end of bucket 10 is connected with silk braid 14 outside.Silk braid 14 is to be unlikely to slippage for ease of interior barrel of play about in the of 13 to go out.
Connection button-type of this bailing tub and size are all by API oil, the design of casing thread gauge model.
During use, behind the sand grains layer of the top insertion oil well bottom of bailing tub, sand bucket is by last union 15, interior bucket 13 drives on the pistons 11 and moves, make in the top assembly 2, in the lower pipe connection 3 and sand sediment pipe 6 inner chambers produce negative pressure (piston in the outer bucket make progress play produce negative pressure), making the high pressure sand flow of down-hole wash the valve ball 5 (φ 50 steel balls) that closely closes in the top connection open by top assembly 2 inner chambers enters in the sand sediment pipe 6, at this moment, the airtight upper ball valve seat 16 of valve ball 17 (φ 50 steel balls) in the last union 15, sand flow is deposited in the annular space 8 of sand sediment pipe by sand sediment pipe 6 back sand.When the downward play of the piston in the outer bucket 10 11, the valve balls 5 in the lower pipe connection 3 are enclosed in down ball valve seat 4, and upward union 15 interior valve balls 17 are opened, and make on the interior current direction of union 15 to flow out, and finish a circulation.Through constantly the moving up and down of piston 11, make in the sand sediment pipe 6 behind the completely long-pending sand of precipitation, on carry finishing and once drag for sand.
Claims (5)
1. oilfield down-hole bailing tub, it is characterized in that: it includes a top assembly (2), this top assembly is the pipe shape, be connected with top (1) in the lower end of top assembly (2), the upper end of top assembly (2) is connected with lower pipe connection (3), in lower pipe connection (3), be provided with ball valve seat (4) down, this time ball valve seat (4) is provided with valve ball (5), be connected with sand sediment pipe (6) in lower pipe connection (3) upper end, in this sand sediment pipe (6), be provided with middle pipe (7), be formed with annular space (8) between the inwall of the outer wall of pipe (7) and sand sediment pipe (6) in being somebody's turn to do, should be connected with the lower end of sand sediment pipe (6) middle lower end of managing (7), make annular space (8) lower end be closed, bucket (10) outside sand sediment pipe (6) top is provided with, outside this, be provided with piston (11) in the bucket (10), the outer wall of this piston (11) is with the sealing ring that forms sealing with the inwall of outer bucket (10), be connected with interior bucket (13) in the upper end of piston (11), outer bucket (10) is stretched out in the upper end of bucket (13) in being somebody's turn to do, upper end at interior bucket (13) is connected with union (15), be provided with upper ball valve seat (16) in last union (15), this upper ball valve seat (16) is provided with valve ball (17).
2. oilfield down-hole bailing tub according to claim 1 is characterized in that: described top (1) is to be triangular tip shape, the hexagonal angle of being separated by between the triangular, 45 ° of top rakes.
3. oilfield down-hole bailing tub according to claim 1 and 2 is characterized in that: sand sediment pipe (6) and outside bucket be connected with splice sleeve (9) between (10).
4. oilfield down-hole bailing tub according to claim 3 is characterized in that: the upper end of bucket (10) is connected with silk braid (14) outside.
5. oilfield down-hole bailing tub according to claim 4 is characterized in that: the upper side wall of bucket (10) is provided with steam vent (20) outside, is provided with steam vent (19) and is connected with bearing pin (18) at the sidewall of last union (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101795595A CN101182758B (en) | 2007-12-14 | 2007-12-14 | Oilfield down-hole bailing tub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101795595A CN101182758B (en) | 2007-12-14 | 2007-12-14 | Oilfield down-hole bailing tub |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101182758A true CN101182758A (en) | 2008-05-21 |
| CN101182758B CN101182758B (en) | 2012-01-04 |
Family
ID=39448171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101795595A Active CN101182758B (en) | 2007-12-14 | 2007-12-14 | Oilfield down-hole bailing tub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101182758B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696716A (en) * | 2013-11-12 | 2014-04-02 | 湖北中南勘察基础工程有限公司 | Deep hole bottom powder fishing device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5095976A (en) * | 1988-11-08 | 1992-03-17 | Appleton Billy D | Tubing sand pump |
| CN2505585Y (en) * | 2001-09-25 | 2002-08-14 | 辽河石油勘探局高升工程技术处 | High-efficiency oil well bailing device |
| CN1184406C (en) * | 2002-06-14 | 2005-01-12 | 辽河石油勘探局 | Vacum tube-type bailing process and its borehole tool |
| CN2851535Y (en) * | 2005-12-28 | 2006-12-27 | 王中华 | Electric pump sand-settling apparatus |
| CN2906038Y (en) * | 2006-06-03 | 2007-05-30 | 彭鼎 | Rubbish collecting device for oil production well |
| CN201027512Y (en) * | 2007-05-15 | 2008-02-27 | 李永祥 | Sand pumping device of oil-water well |
-
2007
- 2007-12-14 CN CN2007101795595A patent/CN101182758B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696716A (en) * | 2013-11-12 | 2014-04-02 | 湖北中南勘察基础工程有限公司 | Deep hole bottom powder fishing device |
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| Publication number | Publication date |
|---|---|
| CN101182758B (en) | 2012-01-04 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Jiangbo Inventor after: Li Jianming Inventor after: Zhang Zengzheng Inventor after: Xiao Baojun Inventor after: Yan Bo Inventor before: Li Jiangbo Inventor before: Li Jianming Inventor before: Zhang Zengzheng Inventor before: Xiao Baojun |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LI JIANGBO LI JIANMING ZHANG ZENGZHENG XIAO BAOJUN TO: LI JIANGBO LI JIANMING ZHANG ZENGZHENG XIAO BAOJUN YAN BO |
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| TR01 | Transfer of patent right |
Effective date of registration: 20221109 Address after: 100102 No.8, pingcui West Road, Chaoyang District, Beijing Patentee after: ANTON OILFIELD SERVICES (GROUP) Ltd. Patentee after: XINJIANG ANTON OIL TECHNOLOGY SERVICES Co.,Ltd. Address before: 100102, Beijing, Chaoyang District, home to the East Road No. 5, Li Jing, 3 floors Patentee before: ANTON OILFIELD SERVICES (GROUP) Ltd. |
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| TR01 | Transfer of patent right |