CN103498641A - Sand removing device and method of oil well negative-pressure machine - Google Patents
Sand removing device and method of oil well negative-pressure machine Download PDFInfo
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- CN103498641A CN103498641A CN201310449470.1A CN201310449470A CN103498641A CN 103498641 A CN103498641 A CN 103498641A CN 201310449470 A CN201310449470 A CN 201310449470A CN 103498641 A CN103498641 A CN 103498641A
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Abstract
The invention discloses a sand removing device and method of an oil well negative-pressure machine. The sand removing device of the oil well negative-pressure machine comprises an oil pipe (24), a sand setting pipe (26), a sand bailing pump (22) and a sand shovel (23), wherein the sand bailing pump (22) comprises a pump cylinder (4), a piston (5), a pump front valve ball (7) arranged inside the piston (5), a pump front magnetic valve seat (8) fixed inside the pump cylinder (4), a pump rear valve ball (12) arranged on the rear section of the interior of the pump cylinder (4), a pump rear magnetic valve seat (13) fixed on the rear section of the interior of the pump cylinder (4), and a sand filtering pipe (15) arranged on the tail portion; the sand shovel (23) comprises a sand shovel spring (18), a sand shovel valve ball (19) connected with the sand shovel spring (18), a sand shovel valve seat (20) fixed on the middle section of the interior of a cylinder of the sand shovel (23) and a shovel tip (21). According to the sand bailing pump of the sand removing device of the oil well negative-pressure machine, an original spring is replaced with a magnetic ball seat, breakdowns, caused by frequent fracture of the spring, of the sand bailing pump are avoided, and underground sand bailing efficiency is improved.
Description
Technical field
The present invention relates to the oil well sand washover field, relate to oil well negative pressure machinery fettling installation and sand removal method thereof.
Background technology
Sand production badly influences the normal oil recovery of oil well.
To the oil well sand washover problem, traditionally, adopt following two kinds of modes to process: 1, hydraulic sand washing technique is removed the shaft bottom sand,, be lowered to the sand washing oil pipe in oil well, bottom band sand-washing pen point, then in the large discharge capacity of well head to the filling liquid that circulates in well, the shaft bottom sand is in the impact of large discharge capacity liquid and return producing well under carrying and arrive ground, realizes the oil well sand washover purpose; 2, sand bucket drags for sand,, at the bottom of utilizing oil pipe the sand bucket lower going-into-well, reciprocating motion by the sand bucket plunger directly is drawn into the sand in shaft bottom in the sand setting oil pipe, complete certain depth drag for sand construction after, trip out ground dragging for the sandpipe post, remove sand, G.I.H starts next round and drags for the sand construction again.
In traditional hydraulic sand washing technique, have two problems: the well that first formation pressure is low can not return sand cleaning fluid and sand, the sand cleaning fluid polluted reservoir; Its two sand washing sometimes needs to adopt foam solution, adds diverting agent, increases flushing fluid viscosity solution oil well severe leakage problem, and the sand washing cost is high.
In addition, at traditional sand bucket, drag in the sand mode, sand bucket adopts spring to control valve ball, has following problem: spring is easy to fracture, causes sand bucket to damage; Spring force is difficult to control, and causes valve ball opening and closing to greatest extent, and sand bucket efficiency is low.
Summary of the invention
For overcoming the deficiency on prior art, the object of the present invention is to provide a kind of efficient, durable oil well negative pressure machinery fettling installation, wherein, used the combining structure of magnetic ball seat and valve ball, make valve ball can be very sensitive stable and work accurately, sand removal efficiency be high, do not pollute, job costs are very low.
In order to realize purpose of the present invention, technical scheme of the present invention is as follows.
According to one embodiment of present invention, a kind of oil well negative pressure machinery fettling installation is provided, comprise sand bucket (22) and sand shovel (23), wherein, described sand bucket (22) comprises pump barrel (4), piston (5), be arranged on the front valve ball (7) of the inner pump of piston (5), be fixed on the front magnetic valve seat (8) of the inner pump of pump barrel (4), be arranged on valve ball (12) after the pump of the inner back segment of pump barrel (4), be fixed on the sand screen (15) of magnetic valve seat (13) and afterbody after the pump of the inner back segment of pump barrel (4), wherein, described sand shovel (23) comprises sand shovel spring (18), the sand shovel valve ball (19) be connected with sand shovel spring (18), be fixed on sand shovel valve seat (20) and the spear (21) in sand shovel (23) inner barrel stage casing.
According to one embodiment of present invention, a kind of sand removal method for described oil well negative pressure machinery fettling installation is provided, comprise the following steps: oil well negative pressure machinery fettling installation is by tractor hoist and linkage G.I.H, under the effect of head of liquid, sand shovel valve ball (19) is opened, and fluid is filled whole sand sediment pipe (26); When upstroke, piston moves on (5), and before the pump of sand bucket (22), valve ball (7) is closed, and pump barrel (4) pump chamber increases, and valve ball after pump (12) is opened, and sand-laden fluid enters sand sediment pipe (26); When down stroke, piston (5) moves down, valve ball after pump (12) is closed, pump barrel (4) pump chamber reduces, and pressure increases, and before pump, valve ball (7) is opened, load fluid after filtration after sandpipe (15) sedimentation fluid be transferred to piston (5) top, when liquid level reaches the fluid hole (2) of circulation short circuit (25), the fluid in load fluid turns back to oil sets annular space by the fluid hole (2) of circulation short circuit (25), and sand grains is gathered in sand sediment pipe (26); The reciprocating motion of up-down stroke is in the certain vacuum of the inner formation of sand shovel (23), and the fluid returned out from fluid hole (2), under the effect of oil jacket annular space head of liquid, form certain back pressure in sand shovel (23) bottom, promotes residual sand grains and assemble; The motion of repetition up-down stroke, make sand setting (29) constantly be inhaled into sand sediment pipe (26); Sand sediment pipe (26) is proposed, at the land clearing sand.
The accompanying drawing explanation
Fig. 1 is the structural representation according to the sand bucket of the embodiment of the present invention;
Fig. 2 is the structural representation according to the sand shovel part of the sand bucket of the embodiment of the present invention.
Fig. 3 is work schematic diagram of the present invention.
Description of reference numerals:
1, reducer union 2 before pump, fluid hole 3, drain pipe 4, pump barrel 5, piston 7, valve ball 8 before pump, magnetic valve seat 12 before pump, after pump, valve ball 13, magnetic valve seat 14 after pump, after pump, reducer union 15, sand screen 16, the reducer union 17 of sand shovel, sand shovel stopper slot 18, sand shovel spring 19, sand shovel valve ball 20, sand shovel valve seat 21, spear 22, sand bucket 23, sand shovel 24, oil pipe 25, circulation short circuit 26, sand sediment pipe 27, centralizing tool 28, broken sand pushes away sand instrument 29, sand setting
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details.
Referring to Fig. 1, the front end of sand bucket has the front reducer union 1 of pump, and before pump, reducer union 1 is tubular structure, and intermediate lateral has fluid hole 2, for the liquid by pump barrel 4 inside, discharges and is back in oil well.The outside of sand bucket is pump barrel 4, and there is piston 5 in the inner front stage casing of pump barrel 4, and the front end of piston 5 has drain pipe 3, and drain pipe 3 is connected and communicates with piston 5.There is a word gag lever post piston 5 inside, and valve ball 7 before a steel pump is arranged below gag lever post, are magnetic ball seats (magnetic valve seat before pump) 8 below valve ball.Have hole before pump in the middle of magnetic valve seat 8, without under External Force Acting, fit tightly between magnetic valve seat 8 before valve ball 7 and pump before pump, liquid can not pass through.
In pump barrel 4 interior lower end, be provided with valve ball 12 after a pump, valve ball is sitting on following magnetic ball seat (magnetic valve seat after pump) 13 under normal circumstances, have hole after pump in the middle of magnetic valve seat 13, without under External Force Acting, after pump, after valve ball 12 and pump, between magnetic valve seat 13, fit tightly, liquid can not pass through.
In the bottom of pump barrel 4, be provided with reducer union 14, for being connected of sand screen 15.Sand screen 15 is connected with sand sediment pipe 26 simultaneously, for filtering sand setting 29, does not allow sand setting 29 enter pump barrel 4 inside.
Referring to Fig. 2, sand shovel 23 1 ends are the reducer unions 16 of sand shovel, and there is connecting thread its inside, for being connected of sand sediment pipe 26.Sand shovels 23 inner stage casings and is provided with sand shovel spring 18, and sand shovel spring 18 back are connected with sand shovel valve ball 19.Shovel 23 inner barrel stage casings at sand and be fixedly installed sand shovel valve seat 20, at sand shovel spring 18 and sand shovel valve ball 19 positions, be provided with sand shovel stopper slot 17, the effect of sand shovel stopper slot 17 be limit sand shovel valve ball 19 radially with the displacement of fore-and-aft direction.Front end at sand shovel stopper slot 17, be provided with a cross-arm, and the front end of sand shovel spring 18 is attached thereto.
It is spears 21 that sand shovels 23 other ends, for inspiration sand setting 29.
Without under External Force Acting, between sand shovel valve ball 19 and sand shovel valve seat 20, fit tightly, fluid can not pass through.
Referring to Fig. 3, by tractor hoist and linkage, by the fettling installation G.I.H, under the effect of head of liquid, sand shovel valve ball 19 is opened, and liquid is filled whole sand sediment pipe 26.During upstroke, on piston 5, move, before the pump of sand bucket 22, valve ball 7, under fluid power and magneticaction, is closely closed, and pump barrel 4 pump chambers increase, and after pump, valve ball 12 is opened under the vacuum power effect, and sand-laden fluid enters sand sediment pipe 26; During down stroke, piston 5 moves down, after pump, valve ball 12 is closed under fluid power, magneticaction, pump barrel 4 pump chambers reduce, and pressure increases, and before pump, valve ball 7 is opened, load fluid is transferred to piston 5 tops after sandpipe 15 sedimentations after filtration, when liquid level reaches the fluid hole 2 of circulation short circuit 25, the liquid in load fluid turns back to oil sets annular space by the fluid hole 2 of circulation short circuit 25, and sand grains is gathered in sand sediment pipe 26.
In addition, in order to protect sand sediment pipe 26, at its rear portion, be provided with centralizing tool 27.In order to allow sand setting 29 enter better sand sediment pipe 26, also be provided with broken sand at sand sediment pipe 26 rear portions and push away sand instrument 28.
The reciprocating motion of up-down stroke is in the certain vacuum of the inner formation of sand shovel 23, the liquid returned out from fluid hole 2, under the effect of oil jacket annular space head of liquid, shovel 23 bottoms at sand and form certain back pressure, promote residual sand grains and assemble, thorough sand removal is played to very large effect.The motion of repetition up-down stroke, sand setting 29 just constantly is inhaled into sand sediment pipe 26 fast.Sand sediment pipe 26 is proposed, at the land clearing sand.So repeatedly, can complete and take out the sand operation.
According to embodiments of the invention, replaced with magnetic valve ball seat (magnetic valve seat 13 after the front magnetic valve seat 8 of pump, pump) the pump front spring and the pump rear spring that usually adopt in the prior art, replace elastic force with magnetic force, not only solved the problem that the spring easy fracture exists, and, there is no spring, the operating efficiency of sand bucket is higher.
The above design feature to embodiments of the invention, operating principle and major advantage have been done elaboration.Those skilled in the art should recognize, the present invention can realize by other the embodiment that does not break away from its Spirit Essence or essential feature.Therefore, above-mentioned disclosed embodiment, just illustrate, and is not exhaustive.Change within the scope of the present invention all or within being equal to scope of the present invention all is included in the invention.
Claims (10)
1. an oil well negative pressure machinery fettling installation, comprise interconnective sand bucket (22) and sand shovel (23),
Wherein, described sand bucket (22) comprises pump barrel (4), be positioned at the piston (5) in the inner front stage casing of described pump barrel (4), be arranged on valve ball (7) before the inner pump of piston (5), be fixed on magnetic valve seat (8) before the inner pump of pump barrel (4), be arranged on valve ball (12) after the pump of the inner back segment of pump barrel (4), be fixed on the sand screen (15) of magnetic valve seat (13) and afterbody after the pump of the inner back segment of pump barrel (4)
Wherein, described sand shovel (23) comprises that sand shovel spring (18), the sand be connected with sand shovel spring (18) shovel valve ball (19), are fixed on sand shovel valve seat (20) and spear (21) that sand shovels (23) inner barrel stage casing.
2. oil well negative pressure according to claim 1 machinery fettling installation, wherein, described sand bucket (22) is connected to oil pipe (24) by circulation short circuit (25).
3. oil well negative pressure machinery fettling installation according to claim 1, wherein, interconnected by sand sediment pipe (26) between described sand bucket (22) and sand shovel (23).
4. oil well negative pressure according to claim 1 machinery fettling installation, wherein, the front end of described sand bucket (22) is equipped with the front reducer union (1) of pump, before described pump, reducer union (1) is tubular structure, intermediate lateral has fluid hole (2), for the liquid that pump barrel (4) is inner, discharges and is back in oil well.
5. oil well negative pressure according to claim 1 machinery fettling installation, wherein, described sand bucket (22) also includes and is arranged on the drain pipe (3) that piston (5) front end is inner and be fixedly connected with and communicate with piston (5), wherein, described drain pipe (3) communicates with fluid hole (2)
Wherein, described piston (5) inside is provided with a word gag lever post, before described pump, valve ball (7) is positioned at below a described word gag lever post, before described pump, magnetic valve seat (8) is positioned at below the front valve ball (7) of described pump, have hole before described pump in the middle of magnetic valve seat (8), without under External Force Acting, before described pump, before valve ball (7) and described pump, between magnetic valve seat (8), fit tightly, liquid can not pass through.
6. oil well negative pressure according to claim 1 machinery fettling installation, wherein, valve ball after described pump (12) is arranged on described pump barrel (4) interior lower end, have hole after described pump in the middle of magnetic valve seat (13), without under External Force Acting, after valve ball after described pump (12) and described pump, between magnetic valve seat (13), fit tightly, liquid can not pass through.
7. oil well negative pressure according to claim 3 machinery fettling installation, wherein, bottom in described pump barrel (4), be provided with reducer union (14), for with being connected of described sand screen (15), described sand screen (15) is connected with described sand sediment pipe (26) simultaneously, for filtering sand setting (29), does not allow sand setting (29) enter described pump barrel (4) inside.
8. oil well negative pressure according to claim 3 machinery fettling installation, wherein, one end of described sand shovel (23) is equipped with the reducer union (16) of sand shovel, there is connecting thread its inside, for with being connected of sand sediment pipe (26), the other end of described sand shovel (23) is equipped with spear (21), for inspiration sand setting (29)
Wherein, described sand shovel (23) inner stage casing is provided with sand shovel spring (18), and described sand shovel spring (18) back is connected with sand shovel valve ball (19),
Wherein, be fixedly installed sand shovel valve seat (20) in described sand shovel (23) inner barrel stage casing, at sand shovel spring (18) and sand shovel valve ball (19) position, be provided with sand shovel stopper slot (17), described sand shovel stopper slot (17) be used for limiting described sand shovel valve ball (19) radially with the displacement of fore-and-aft direction
Wherein, the front end at described sand shovel stopper slot (17), be provided with cross-arm, and the front end of described sand shovel spring (18) is connected with described cross-arm,
Without under External Force Acting, between described sand shovel valve ball (19) and described sand shovel valve seat (20), fit tightly, fluid can not pass through.
9. a kind of oil well negative pressure machinery fettling installation according to claim 3, wherein, described sand sediment pipe (26) rear portion also is provided with centralizing tool (27) and broken sand pushes away sand instrument (28).
10. one kind for the sand removal method according to the described oil well negative pressure machinery of of claim 1 to 9 fettling installation, comprises the following steps:
Oil well negative pressure machinery fettling installation is by tractor hoist and linkage G.I.H, and under the effect of head of liquid, sand shovel valve ball (19) is opened, and fluid is filled whole sand sediment pipe (26);
When upstroke, piston moves on (5), and before the pump of sand bucket (22), valve ball (7) is closed, and pump barrel (4) pump chamber increases, and valve ball after pump (12) is opened, and sand-laden fluid enters sand sediment pipe (26);
When down stroke, piston (5) moves down, valve ball after pump (12) is closed, pump barrel (4) pump chamber reduces, and pressure increases, and before pump, valve ball (7) is opened, load fluid after filtration after sandpipe (15) sedimentation fluid be transferred to piston (5) top, when liquid level reaches the fluid hole (2) of circulation short circuit (25), the fluid in load fluid turns back to oil sets annular space by the fluid hole (2) of circulation short circuit (25), and sand grains is gathered in sand sediment pipe (26);
The reciprocating motion of up-down stroke is in the certain vacuum of the inner formation of sand shovel (23), and the fluid returned out from fluid hole (2), under the effect of oil jacket annular space head of liquid, form certain back pressure in sand shovel (23) bottom, promotes residual sand grains and assemble;
The motion of repetition up-down stroke, make sand setting (29) constantly be inhaled into sand sediment pipe (26);
Sand sediment pipe (26) is proposed, at the land clearing sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310449470.1A CN103498641A (en) | 2013-09-24 | 2013-09-24 | Sand removing device and method of oil well negative-pressure machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310449470.1A CN103498641A (en) | 2013-09-24 | 2013-09-24 | Sand removing device and method of oil well negative-pressure machine |
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| CN103498641A true CN103498641A (en) | 2014-01-08 |
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| CN201310449470.1A Pending CN103498641A (en) | 2013-09-24 | 2013-09-24 | Sand removing device and method of oil well negative-pressure machine |
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| CN114941510A (en) * | 2022-06-17 | 2022-08-26 | 程显达 | Circulation unblocking sand fishing process system |
| CN115075754A (en) * | 2022-07-15 | 2022-09-20 | 吉林省涵海能源科技有限公司 | Horizontal well mechanical sand removal device and process |
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| CN114941510A (en) * | 2022-06-17 | 2022-08-26 | 程显达 | Circulation unblocking sand fishing process system |
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Address after: 100192, room 1106, B, fortune 8, science and technology center, science learning road, Haidian District, Beijing Applicant after: BEIJING ENRUIDA TECHNOLOGY CO., LTD. Address before: 100192, room 1106, B, fortune 8, science and technology center, science learning road, Haidian District, Beijing Applicant before: Beijing Enruida Technology Co., Ltd. |
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Application publication date: 20140108 |