CN201106429Y - Apparatus for pumping sand in oil field down-hole - Google Patents
Apparatus for pumping sand in oil field down-hole Download PDFInfo
- Publication number
- CN201106429Y CN201106429Y CNU2007201908387U CN200720190838U CN201106429Y CN 201106429 Y CN201106429 Y CN 201106429Y CN U2007201908387 U CNU2007201908387 U CN U2007201908387U CN 200720190838 U CN200720190838 U CN 200720190838U CN 201106429 Y CN201106429 Y CN 201106429Y
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- sand
- bucket
- tube
- pipe
- valve seat
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Abstract
The utility model relates to an oilfield downhole sand fishing device which comprises a core clamper combination. The lower end of the core clamper combination is connected with a core clamper, and the upper end of the core clamper combination is connected with a lower tube joint. A ball dropping valve seat is arranged in the lower tube joint, a valve ball is arranged on the ball dropping valve seat, and the upper end of the lower tube joint is connected with a sand separator tube. A medium tube is arranged in the sand separator tube, a ringed space is formed between the external wall of the medium tube and the inner wall of the sand separator tube, and the lower end of the medium tube is connected with the lower end of the sand separator tube to cause the lower end of the ringed space to be in a closed state. An external barrel is arranged at the upper part of the sand setting tube, and generates negative pressure by upward motion of the piston to make sand precipitated in the ringed space of the sand separator tube after a sand flow passes through the sand separator tube. The oilfield downhole sand fishing device has the beneficial effects of simple structure, low price, convenient use, high downhole sand fishing efficiency, safety and reliability, can efficiently clear well bottom blown sand with high efficiency, and decreases downhole operation times caused by blown sand clearance.
Description
Technical field
The utility model relates to the oilfield production equipment technical field, is down-hole, a kind of oil field sand-bailing equipment.
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.
The utility model content
The purpose of this utility model provides a kind of simple in structure, easy to use, down-hole and drags for high down-hole, a kind of oil field sand-bailing equipment of sand efficient, by dragging for the sand operation, can remove shaft bottom sand post, exposes payzone, reduces flow resistance, increases oil production.
The utility model content
For achieving the above object, the utility model is taked following technical scheme:
Down-hole, a kind of oil field sand-bailing equipment, 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 beneficial effects of the utility model are: 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 utility model.
Fig. 2 is the structural representation of looking up of Fig. 1.
The specific embodiment
Referring to Fig. 1, shown in Figure 2: down-hole, a kind of oil field sand-bailing equipment, 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 sand-bailing equipment 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, down-hole, a kind of oil field sand-bailing equipment, 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, down-hole, a kind of oil field according to claim 1 sand-bailing equipment 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, down-hole, a kind of oil field according to claim 1 and 2 sand-bailing equipment is characterized in that: sand sediment pipe (6) and outside bucket be connected with splice sleeve (9) between (10).
4, down-hole, a kind of oil field according to claim 3 sand-bailing equipment is characterized in that: the upper end of bucket (10) is connected with silk braid (14) outside.
5, down-hole, a kind of oil field according to claim 4 sand-bailing equipment 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 |
|---|---|---|---|
| CNU2007201908387U CN201106429Y (en) | 2007-12-14 | 2007-12-14 | Apparatus for pumping sand in oil field down-hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201908387U CN201106429Y (en) | 2007-12-14 | 2007-12-14 | Apparatus for pumping sand in oil field down-hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201106429Y true CN201106429Y (en) | 2008-08-27 |
Family
ID=39958229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201908387U Expired - Fee Related CN201106429Y (en) | 2007-12-14 | 2007-12-14 | Apparatus for pumping sand in oil field down-hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201106429Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337847A (en) * | 2011-08-31 | 2012-02-01 | 中国石油化工股份有限公司 | Automatically starting type sand fishing pump |
| CN103696719A (en) * | 2013-11-12 | 2014-04-02 | 湖北中南勘察基础工程有限公司 | Small-caliber drilling slag salvaging device |
| CN112647872A (en) * | 2019-10-12 | 2021-04-13 | 中国石油化工股份有限公司 | Underground sand suction device |
-
2007
- 2007-12-14 CN CNU2007201908387U patent/CN201106429Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337847A (en) * | 2011-08-31 | 2012-02-01 | 中国石油化工股份有限公司 | Automatically starting type sand fishing pump |
| CN103696719A (en) * | 2013-11-12 | 2014-04-02 | 湖北中南勘察基础工程有限公司 | Small-caliber drilling slag salvaging device |
| CN103696719B (en) * | 2013-11-12 | 2016-06-08 | 湖北中南勘察基础工程有限公司 | A kind of small diameter hole device for dragging dregs |
| CN112647872A (en) * | 2019-10-12 | 2021-04-13 | 中国石油化工股份有限公司 | Underground sand suction device |
| CN112647872B (en) * | 2019-10-12 | 2022-11-25 | 中国石油化工股份有限公司 | Underground sand suction device |
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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 |
Granted publication date: 20080827 Termination date: 20151214 |
|
| EXPY | Termination of patent right or utility model |