CN102155392B - Injection-extraction integrated sand prevention oil-well pump - Google Patents

Abstract

The invention relates to an oil-well pump for sanding heavy crude oil well, and in particular relates to an injection-extraction integrated sand prevention oil-well pump. An adapter I of the device is provided with a connecting rod internally; a connecting rod adapter, a connecting rod, a collision pump short adapter, a collision pump nipple and a collision pump nipple lower adapter are connected sequentially; the collision pump nipple lower adapter is connected with a steel wire rope sleeve adapter through a steel wire rope; the steel wire rope is wound on a pulley; the pulley is arranged on a pulley shaft; the pulley shaft is installed on a pulley seat; the steel wire rope sleeve adapter, an adapter nipple, a coupling, an air valve connecting rod ball body, a ball valve and an air valve connecting rod are connected sequentially; a weight body metal is installed outside the air valve connecting rod ball body; and the air valve connecting rod is connected with an air valve spring seat ring, a lower air valve ball valve and an air valve connecting section header. Through the oil-well pump provided by the invention, air injection, oil extraction and sand prevention are integrated into a whole, the working amount of borehole operation is reduced, and sand blocking and sand embedding are prevented effectively; and the defects that an air injection tubular column is required to be pulled out, then a pump is used for pumping and extracting oil in a rotation mode and the sand blocking and sand embedding in oil extracting process normally are overcome.

Description

A kind of notes are adopted integrated sand-proof oil-well pump

Technical field:

The present invention relates to a kind of oil well pump for sanding heavy crude oil well, particularly a kind of notes are adopted integrated sand-proof oil-well pump.

Background technique:

At present, the steam injection heating exploitation is one of main mining type of thick oil well, on-the-spot thick oil well need be lowered to steam injection string usually earlier and carry out gas injection in implementing the heat extraction by steam injection process, behind the oil well steam soak, use directly suction well liquid from oil well of conventional oil well pump, must wait do not have pressure after, tripping out the gas injection tubing string could descend the pump commentaries on classics to take out, so not only increase the work operations amount, prolong the construction operation cycle, and missed the most favourable commentaries on classics extraction oil phase, and then make oil layer pollution, reduced oil well output.Prolongation along with the viscous crude injection thermal recovery time, the sand production situation is on the rise, and sand content is also more and more in the crude oil, and in use often sand card, sand bury to cause oil well pump, significantly reduced the working life of oil well pump, its stable yields and normal exploitation have been constituted adverse effect.

Summary of the invention:

The technical problem to be solved in the present invention provides a kind of notes and adopts integrated sand-proof oil-well pump, and this device has been realized variorum gas, oil recovery, the multiple function of sand control in one, reduces the underground work workload, prevents that effectively sand card, sand from burying.Having overcome prior art need trip out the gas injection tubing string earlier and could descend pump to change extraction oil and the deficiency that sand card, sand bury often occurs in oil recovery process.

The technical solution used in the present invention is: a kind of notes are adopted integrated sand-proof oil-well pump, and plunger, plunger valve cover, travelling valve gland place in the pump barrel, and plunger valve cover is connected with plunger; Travelling valve gland upper end connects the travelling valve cover, and the lower end connects pump barrel; Travelling valve cover upper end connects the hollow stem short circuit, and the hollow stem short circuit places in the upper connection; Upper connection, box cupling I, overcoat, joint I, joint II, pipe nipple, joint III, joint IV, lower contact connect in turn; Box cupling I spigot is connected with box cupling I, and the pump barrel outside is set with the pump barrel sheath, the pump barrel sheath, bump the pump cap, overcoat connects in turn; Plunger, joint I, interior pipe connect in turn, are provided with connecting rod in the joint I, linkage connector, connecting rod, bump the pump short circuit head, bump the pump pipe nipple, bump the lower contact of pump pipe nipple and connect in turn; Bump the lower contact of pump pipe nipple and be connected with the steel wire loop joint by wire rope I, wire rope II, wire rope I, wire rope II are on pulley, and pulley is contained on the pulley spindle, and pulley spindle is contained on the pulley base; Steel wire loop joint, head sub, box cupling II, valve connecting rod spheroid, ball valve, valve connecting rod connect in turn; Valve connecting rod spheroid is equipped with heavy body metal outward, and heavy body metal is equipped with protecting jacket outward, on protecting jacket and the heavy body metal end cap is housed; Be connected with valve spring holder, therapeutic method to keep the adverse qi flowing downward croquet valve, valve connecting rod section header on the valve connecting rod, valve connecting rod section header, following pipe nipple head, stuffing box gland connect successively; Last valve ball seat, cotter seat, therapeutic method to keep the adverse qi flowing downward croquet seat are connected, and are sleeved on the valve connecting rod outside.

The invention has the beneficial effects as follows: the present invention is owing to adopted the device that control gas injection channel switch is installed under pump barrel, thereby have the gas of variorum, oil recovery, the multiple function of sand control in the effect of one, utilize it can be when sanding heavy crude oil well be produced the immobile oil tubing string, has only needed alternately to finish gas injection oil recovery production under the situation of lower sucker rod, reduced the underground work workload, take full advantage of the favourable oil recovery phase, prevent that thereby oil layer pollution from reaching raising injection efficiency and crude output, and efficiently solve the problem that prevents that sand card, sand from burying.

Description of drawings:

The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

Fig. 1 is structural representation of the present invention.

Embodiment:

As shown in Figure 1, a kind of notes are adopted integrated sand-proof oil-well pump, by upper connection 1, hollow stem short circuit 2, travelling valve cover 3, box cupling I4, box cupling I spigot 5, travelling valve gland 6, plunger valve cover 7, pump barrel sheath 8, pump barrel 9, plunger 10, overcoat 11, bump pump cap 12, SOC.HD. cap screw 13, linkage connector 14, joint I15, connecting rod 16, joint II17, bump pump short circuit head 18, pulley base 19, pulley 20, pulley spindle 21, wire rope I22, bump pump pipe nipple 23, interior pipe 24, wire rope II25, bump pump pipe nipple lower contact 26, screw 27, steel wire loop joint 28, head sub 29, box cupling II30, end cap 31, protecting jacket 32, heavy body metal 33, valve connecting rod spheroid 34, pipe nipple 35, ball valve 36, last valve ball seat 37, joint III38, cotter seat 39, valve spring 40, valve connecting rod 41, joint IV42, valve spring holder 43, therapeutic method to keep the adverse qi flowing downward croquet valve 44, valve connecting rod section header 45, following pipe nipple head 46, stuffing box gland 47, therapeutic method to keep the adverse qi flowing downward croquet seat 48, lower contact 49 and change snapping hoop 50 are formed; Plunger 10, plunger valve cover 7, travelling valve gland 6 place in the pump barrel 9, and plunger valve cover 7 is connected with plunger 10; Travelling valve gland 6 upper ends connect travelling valve cover 3, and the lower end connects pump barrel 9; Travelling valve cover 3 upper ends connect hollow stem short circuit 2, and hollow stem short circuit 2 places in the upper connection 1; Upper connection 1, box cupling I4, overcoat 11, joint I15, joint II17, pipe nipple 35, joint III38, joint IV42, lower contact 49 connect in turn; Box cupling I spigot 5 is connected with box cupling I4, and pump barrel 9 outsides are set with pump barrel sheath 8, pump barrel sheath 8, bumps pump cap 12, overcoat 11 and connects in turn; Plunger 10, joint I15, interior pipe 24 connect in turn, are provided with connecting rod 16 in the joint I15, linkage connector 14, connecting rod 16, bump pump short circuit head 18, bump pump pipe nipple 23, bump pump pipe nipple lower contact 26 and connect in turn; Bump pump pipe nipple lower contact 26 and be connected with steel wire loop joint 28 by wire rope I22, wire rope II25, wire rope I22, wire rope II25 are on pulley 20, and pulley 20 is contained on the pulley spindle 21, and pulley spindle 21 is contained on the pulley base 19; Steel wire loop joint 28, head sub 29, box cupling II30, valve connecting rod spheroid 34, ball valve 36, valve connecting rod 41 connect in turn; Heavy body metal 33 is housed outside the valve connecting rod spheroid 34, outside the heavy body metal 33 protecting jacket 32 is housed, on protecting jacket 32 and the heavy body metal 33 end cap 31 is housed; Be connected with valve spring holder 43, therapeutic method to keep the adverse qi flowing downward croquet valve 44, valve connecting rod section header 45 on the valve connecting rod 41, valve connecting rod section header 45, following pipe nipple head 46, stuffing box gland 47 connect successively; Last valve ball seat 37, cotter seat 39, therapeutic method to keep the adverse qi flowing downward croquet seat 48 are connected, and are sleeved on valve connecting rod 41 outsides; Interior pipe 24 lower ends connect change snapping hoop 50.

During gas injection, with G.I.H of the present invention, hollow stem short circuit 2 connects sucker rod, the descending drive pump barrel of sucker rod 9 is descending, thereby pump barrel 9 promotes linkage connector 14 drivening rods 16, it is descending to bump pump pipe nipple 23, bump pump pipe nipple 23 and drive that to bump the lower contact 26 of pump pipe nipple descending, bump pump pipe nipple lower contact 26 by wire rope I22, wire rope II25 drives steel wire loop joint 28 under the effect of pulley 20 up, steel wire loop joint 28 drives head sub 29, heavy body metal 33, ball valve 36, therapeutic method to keep the adverse qi flowing downward croquet valve 44 uplink synchronizations, ball valve 36, the therapeutic method to keep the adverse qi flowing downward croquet valve 44 up ball seats that leave can carry out gas injection thereby opened the gas injection passage.Having annotated vapour changes when taking out, on carry sucker rod, in like manner close the gas injection passage, can change and take out production.The present invention adopts two ball-valve structures of ball valve 36, therapeutic method to keep the adverse qi flowing downward croquet valve 44, and it is more safe and reliable that its work is produced.In oil pumping process, when the sucker rod proper functioning, plunger 10 is motionless, pump barrel 9 is done and is pumped, plunger 10 can with pump barrel 9 above oil pipe and the oil in the active chamber of bottom stream in obtain to clean, pump barrel 9 and booties such as sand in plunger 10 gaps scraped leak in the oil, keep the cleaning on plunger 10 surfaces.Simultaneously pump barrel 9 moves up and down, and forms a stirrer that moves up and down at pump, makes the sand of pump in oiling be not easy the deposition at the pumping hole place, and most parts of sand will be taken away the discharge well head with oily stream, prevent that sand buries on the pump.

Be with being appreciated that, more than about specific descriptions of the present invention, only for the present invention being described and being not to be subject to the described technological scheme of the embodiment of the invention, those of ordinary skill in the art is to be understood that, still can make amendment or be equal to replacement the present invention, to reach identical technique effect; Use needs as long as satisfy, all within protection scope of the present invention.

Claims (1)

1. notes are adopted integrated sand-proof oil-well pump, and plunger (10), plunger valve cover (7), travelling valve gland (6) place in the pump barrel (9), and plunger valve cover (7) is connected with plunger (10); It is characterized in that: travelling valve gland (6) upper end connects travelling valve cover (3), and the lower end connects pump barrel (9); Travelling valve cover (3) upper end connects hollow stem short circuit (2), and hollow stem short circuit (2) places in the upper connection (1); Upper connection (1), box cupling I (4), overcoat (11), joint I (15), joint II (17), pipe nipple (35), joint III (38), joint IV (42), lower contact (49) connect in turn; Box cupling I spigot (5) is connected with box cupling I (4), and pump barrel (9) outside is set with pump barrel sheath (8), pump barrel sheath (8), bump pump cap (12), overcoat (11) connects in turn; Plunger (10), joint I (15), interior pipe (24) connect in turn, are provided with connecting rod (16) in the joint I (15), linkage connector (14), connecting rod (16), bump pump short circuit head (18), bump pump pipe nipple (23), bump pump pipe nipple lower contact (26) and connect in turn; Bumping pump pipe nipple lower contact (26) is connected with steel wire loop joint (28) by wire rope I (22), wire rope II (25), wire rope I (22), wire rope II (25) are on pulley (20), pulley (20) is contained on the pulley spindle (21), and pulley spindle (21) is contained on the pulley base (19); Steel wire loop joint (28), head sub (29), box cupling II (30), valve connecting rod spheroid (34), ball valve (36), valve connecting rod (41) connect in turn; Outer being equipped with of valve connecting rod spheroid (34) weighs body metal (33), and the outer protecting jacket (32) that is equipped with of heavy body metal (33) is equipped with end cap (31) on protecting jacket (32) and the heavy body metal (33); Be connected with valve spring holder (43), therapeutic method to keep the adverse qi flowing downward croquet valve (44), valve connecting rod section header (45) on the valve connecting rod (41), valve connecting rod section header (45), following pipe nipple head (46), stuffing box gland (47) connect successively; Last valve ball seat (37), cotter seat (39), therapeutic method to keep the adverse qi flowing downward croquet seat (48) are connected, and are sleeved on valve connecting rod (41) outside.

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