CN2670628Y

CN2670628Y - Multifunctional oil sucking pumps

Info

Publication number: CN2670628Y
Application number: CNU2003201211914U
Authority: CN
Inventors: 任满堂; 任玉斌; 王清; 孙扬志
Original assignee: 王清
Priority date: 2003-12-06
Filing date: 2003-12-06
Publication date: 2005-01-12
Anticipated expiration: 2013-12-06

Abstract

The utility model discloses a multifunctional oil sucking pump, comprising a pump barrel, a plunger mechanism arranged in the pump barrel, a fixing valve cover fixed with the pump barrel via a pump barrel coupling and a valve component arranged in the fixing valve cover. A circlip is sheathed in the center of the valve component; a cross salvaging head with a casting tube is fixed on the upper end of the valve component; a salvaging cap is fixed on the lower end of the plunger mechanism; a blocking groove corresponding to the cross salvaging head is arranged on the cylinder of the salvaging cap; a through hole is arranged radially along the proper section of one end of the casing tube near the salvaging cap; the cross section of the through hole is the longer slotted holes along the axle of the casting tube; a prolate pin, whose shape is matched with the through hole, extends from the both sides of the through hole and is fixed in the through hole. The multifunctional oil sucking pump can convert the technology or treat the working condition without taking out the down-hole pumping unit during the oil pumping. The multifunctional oil sucking pump can be used for regular oil extraction, in particular for heavy oil extraction and oil extraction of special process.

Description

Multifunctional oil-well pump

Technical field the present invention relates to a kind of oil oil well pump, relates in particular to a kind of conventional well recovery that both had been suitable for, and is suitable for again that the heavy oil air to open is adopted and the multifunctional oil-well pump of special process well recovery.

The old well resurrection of background technique, heavy oil development, the oil recovery of particular oils condition etc., common concern both domestic and external and great attention have been obtained, the oil well pump that generally uses in the at present domestic and international oil recovery field, to conventional well recovery is feasible, but for the exploitation of viscous crude, when the particular oils condition is recovered the oil, the whole oil pipes in down-hole, tubing hanger, sucker rod and oil well pump need be proposed ground, could handle the operating mode of down-hole then.This method that underground pumping unit is all proposed oil well, not only take a lot of work, time-consuming, waste energy, befouling environment, but also need to be equipped with corresponding oil drainer, blowout prevention marine salvage equipment etc., need king-sized additional investment, its operation cycle of while is long, and the oil recovery working strength of workers is big.

The summary of the invention the purpose of this utility model is: provide a kind of in oil pumping process, need not the pumping unit of down-hole is proposed the service-strong multifunctional oil-well pump that technology conversion or operating mode processing can be carried out in ground.

For achieving the above object, the technical solution of the utility model is: multifunctional oil-well pump, it comprises pump barrel, be installed in the plunger mechanism in the pump barrel, through standing valve cover that the pump barrel box cupling is fixedlyed connected with pump barrel and be installed in valve assembly in the standing valve cover, be set with a jump ring at the middle part of valve assembly, the upper end of valve assembly is installed with a cross fishing head, the lower end of plunger mechanism is fixed with a fishing bell, the cylinder of fishing bell is provided with and the corresponding card holding trough of cross fishing head, the cross fishing head has sleeve pipe, described sleeve pipe radially is provided with through hole near the suitable position of fishing bell one end along it, the cross section of described through hole is the axially long slotted hole along sleeve pipe, and the suitable prolate pin of shape and through hole stretches out from the both sides of through hole and sets firmly wherein.

In oil pumping process, in the time of need handling as if conversion oil pumping technology or because of the variation of underground working, the passage of getting through oil pick-up tube and shaft bottom just can carry out, getting through oil pick-up tube will extract plunger mechanism in the oil well pump and valve assembly out exactly with the key of advancing end passage from pump barrel and standing valve cover, make it to rise in the oil pick-up tube, at this moment, as long as promoting plunger mechanism with sucker rod falls, make the fishing bell of plunger lower end, be sleeved on the cross fishing head by its corresponding chute, rotate a certain angle then, fishing bell is blocked the cross fishing head, just can together rise to plunger mechanism and valve assembly in the oil pick-up tube by sucker rod again, because the diameter of oil pick-up tube is greater than the diameter of pump barrel, plunger mechanism and valve assembly just can not block oil pick-up tube, therefore oil pick-up tube and shaft bottom have just formed passage, so that the operating mode of down-hole is handled, the effect that is installed in the jump ring on the valve assembly is: when the valve assembly being proposed or put in people's standing valve cover, when the upper end of jump ring process standing valve cover exports, all need certain lifting force or pressure, it is passed through, its objective is to stop the valve assembly when normal oil pumping, to be gone out the valve cover by fluid.When fishing bell when corresponding chute is sleeved on the cross fishing head by it, fishing head is subjected to the axial tension along sleeve pipe, because the cross section of prolate pin is a long-round-shape, in salvaging lifting process, can not make the axial generation swing of fishing head along the prolate pin, and the employing cross section is the axially long oblong prolate pin along sleeve pipe, its resistance to flexure is bigger than the bearing pin of other sectional shapes of the same area such as circle, through hole can not be excessive along the size radially of sleeve pipe situation under, adopt the bearing pin of this sectional shape, will reduce because of the crooked of bearing pin greatly or fracture influences the possibility of salvage, thereby has improved the reliability of salvage.

Description of drawings specifically describes embodiment of the present utility model below in conjunction with accompanying drawing:

Fig. 1 is the utility model multifunctional oil-well pump structure sectional view;

Fig. 2 is the structural representation of cross fishing head in the multifunctional oil-well pump shown in Figure 1.

Embodiment as shown in Figure 1, the pump barrel 2 of the utility model multifunctional oil-well pump is a cylinder type, its two ends have outside thread respectively, its upper end be connected with oil pick-up tube through upper connection 1, the lower end is connected with standing valve cover 4 through pump barrel box cupling 3.Plunger mechanism 6 is installed in pump barrel 2, and plunger mechanism 6 also is a cylinder mode, and the endoporus of it and pump barrel 2 is slidingly matched, and has an one-way valve on this plunger mechanism 6 at least.Fixedlying connected with sucker rod in the upper end of plunger mechanism 6, does upper and lower to-and-fro motion so that sucker rod drives plunger mechanism 6, realizes the oil pumping action.The fixedly connected fishing bell 7 in the lower end of plunger mechanism 6, this fishing bell 7 also is columnar structured, and its cylinder is provided with a pair of and cross fishing head 9 corresponding card holding troughs 8, and card holding trough 8 can block cross fishing head 9 and decontrol easily.As shown in Figure 2, cross fishing head 9 has sleeve pipe 91, suitable position at sleeve pipe 91 close fishing bell 7 one ends radially is provided with through hole along it, the shape of the cross section of through hole is the axially long slotted hole along sleeve pipe 91, and the suitable prolate pin 92 of shape and described through hole stretches out from the both sides of through hole and sets firmly wherein.Cross fishing head 9 is fixedly mounted on the upper end of valve assembly 12, and valve assembly 12 is installed on the oil-feed valve seat 13 in the standing valve cover 4.The upper end of standing valve cover 4 is a pilot hole, plays supporting and leading role to valve assembly 12, to keep the axial motion of valve assembly 12.Around the pilot hole of standing valve cover 4 upper ends, be provided with oil outlet 10.Intermediate portion at valve assembly 12 is set with a jump ring 11, and jump ring 11 is the open circular structure, and the external diameter during its opening is greater than the internal diameter of the pilot hole in the standing valve cover 4, and the external diameter when remaining silent is less than the internal diameter of the pilot hole in the standing valve cover 4.Fixedly connected with poly-oil pipe through lower contact 5 in the lower end of standing valve cover 4.

In oil pumping process, in the time of need handling as if conversion oil pumping technology or because of the variation of underground working, the passage of getting through oil pick-up tube and shaft bottom just can carry out, the key of getting through oil pick-up tube and boutgate is exactly plunger mechanism in the oil well pump 6 and valve assembly 12 will be extracted out from pump barrel 2 and standing valve cover 4, make it to rise in the oil pick-up tube, at this moment, as long as promoting plunger mechanism 6 with sucker rod falls, make the fishing bell 7 of plunger mechanism 6 lower ends, be sleeved on the cross fishing head 9 by its corresponding chute 8, rotate a certain angle then, fishing bell 7 is blocked cross fishing head 9, just can together rise to plunger mechanism 6 and valve assembly 12 in the oil pick-up tube by sucker rod again, because the diameter of oil pick-up tube is greater than the diameter of pump barrel 2, plunger mechanism 6 and valve assembly 12 just can not block oil pick-up tube, therefore oil pick-up tube and shaft bottom have just formed passage, so that the operating mode of down-hole is handled, the effect that is installed in the jump ring 11 on the valve assembly is: when valve assembly 12 being proposed or put in people's standing valve cover 4, when the upper end of jump ring 11 process standing valve covers 4 exports, all need certain lifting force or pressure, it is passed through, its objective is to stop valve assembly 12 when normal oil pumping, to be gone out valve cover 4 by fluid.When the fishing bell 7 chute cover 8 corresponding by it is contained on the cross fishing head 9, fishing head 9 is subjected to along the axial tension of sleeve pipe 91, because the cross section of prolate pin 92 is long-round-shapes, in salvaging lifting process, can not make the axial generation swing of fishing head 9 along prolate pin 92, and the employing cross section is the axially long oblong prolate pin 92 along sleeve pipe 91, its resistance to flexure is bigger than the bearing pin of other sectional shapes of the same area such as circle, through hole can not be excessive along the size radially of sleeve pipe 91 situation under, adopt the bearing pin of this sectional shape, will reduce because of the crooked of bearing pin greatly or fracture influences the possibility of salvage, thereby has improved the reliability of salvage.

Claims

Multifunctional oil-well pump, comprise pump barrel (2), be installed in the plunger mechanism (6) in the pump barrel (2), the standing valve cover (4) of fixedlying connected with pump barrel (2) through pump barrel box cupling (3) and be installed in valve assembly (12) in the standing valve cover (4), it is characterized in that: be set with a jump ring (11) at the middle part of valve assembly (12), the upper end of valve assembly (12) is installed with a cross fishing head (9), the lower end of plunger mechanism (6) is fixed with a fishing bell (7), the cylinder of fishing bell (7) is provided with and the corresponding card holding trough of cross fishing head (9) (8), cross fishing head (9) has sleeve pipe (91), described sleeve pipe (91) radially is provided with through hole near the suitable position of fishing bell (7) one ends along it, the cross section of described through hole is the axially long slotted hole along sleeve pipe (91), and the suitable prolate pin (92) of shape and through hole stretches out from the both sides of through hole and sets firmly wherein.