CN201433733Y

CN201433733Y - Radial packing box device for oil-pumping well head in oil field

Info

Publication number: CN201433733Y
Application number: CN2009201003872U
Authority: CN
Inventors: 周勋
Original assignee: HARBIN HUAYA EXHIBITION CORP
Current assignee: HARBIN HUAYA EXHIBITION CORP
Priority date: 2009-07-17
Filing date: 2009-07-17
Publication date: 2010-03-31
Anticipated expiration: 2019-07-17

Abstract

The utility model relates to mechanical equipment, particularly to a radial packing box device for an oil-pumping well head in an oil field for the oil-pumping well of the oil field. The radial packing box device is characterized by comprising a packing ball body, a packing box, a gram, a force bearing ring, a gland bush and a handle, wherein one end of the packing box is connected with the packing ball body through the internal thread in the packing box while the other end thereof is clamped in the groove of the gram, and the external threads of the packing box are connected with the internalthreads of the gland bush in a movably matching manner; and one end of the gram is propped against on the force bearing ring to be connected in a movably matching manner, whereas the other end of theforce bearing ring is propped against at the top end of the cavity for the gland bush. The handle is arranged on the gland bush, and the gram may be an eccentric gram or non-eccentric gram. The utility model has the advantages of simple structure, low cost, convenient operation, flexible use, long service life, reduced labor capacity, improved working efficiency, adjustable deflection, eccentricwear and floor leakage prevention, increased availability of the packing, energy conservation, labor saving, short time and low cost spent in adding the packing, wide application range, long service life circle of the packing, and labor saving in tightening the packing.

Description

The oilfield pumping well bore is to the packing box device

Technical field:

The utility model relates to plant equipment, and the oilfield pumping well bore that is specially a kind of oilfield pumping well use is to the packing box device.

Background technology:

Rod-pumped well is extensive use on the oil field, it is the main mode of recovering the oil in the oil field, the oil pumper well head " radially " packing is that the crude oil of extracting out is sealed, prevent the mechanical device that leaks. should the tool cycle in application life long, dismounting is simple, and be time saving and energy saving. but running oil, the on-the-spot packing that recovers the oil perplexs shop floor worker always, in order to solve this difficult problem, my company is by conscientious field investigation analysis, former rod-pumped well well head packing box, and deficiency is mainly reflected in following six aspects:

1, packing box body and polished rod have friction, that is: pressure ring wearing and tearing polished rod, plush copper are ground ground rods, packing box base ring ground rods, and cut appears in the polished rod surface, thereby influences the application life of packing.2, trip out old packing effort, time-consuming, it is more difficult that well head adds packing partially.3, packing box gland advance distance is short, and the packing utilization rate is low, makes the packing life-span short.4, tight packing box gland effort.5, poly-district well adds packing polished rod band water after three to four days, need add packing again.6, present rod-pumped well well head off-centre is more, adds the very big labour intensity of packing increase for the post employee, and it is long downtime to add packing, and it is many to influence output, is unfavorable for very much production management.Though have a lot of people to study the rod-pumped well packing box for many years, do not have better to solve short problem, particularly well head eccentric wear well of packing life-span all the time.In order to solve former rod-pumped well well head packing box deficiency, guarantee that rod-pumped well adds the long-acting of packing, rate when improving rod-pumped well reduces production loss, alleviates the purpose of post staff labor intensity, never tackles the problem at its root.

Summary of the invention:

The purpose of this utility model be to provide a kind of simple in structure, with low cost, easy to operate, use flexibly, the oilfield pumping well bore of long service life is to the packing box device.The purpose of this utility model is achieved in that it is made of packing spheroid, packing box, leather orchid, force bearing ring, gland, handle.Packing box one end through the internal thread of packing box be connected with the packing spheroid, the packing box other end is stuck in the blue groove of leather, the external screw thread of packing box is connected movingly with the internal thread of gland, the blue end of leather withstands on the force bearing ring and connects movingly, and the other end of force bearing ring withstands on the cavity top of gland.Gland is provided with handle.The leather orchid is to have the blue or not eccentric leather of eccentric leather blue.The utility model has the advantages that: simple in structure, with low cost, easy to operate, use flexibly, long service life; The amount of lightening one's labor has improved operating efficiency.Tuningout, anti-eccentric wear, preventing leakage from bottom, the utilization rate of packing increases, and energy-conservation, it is laborsaving to add packing, and it is short to add the packing time, and cost is low, wide accommodation, the packing life cycle is long, and tight packing is laborsaving.

Description of drawings:

Fig. 1 is the utility model structural principle generalized section; Fig. 2 the utility model packing sphere structure principle generalized section; Fig. 3 the utility model force bearing ring structure principle generalized section; Fig. 4 the utility model packing box body structure principle generalized section; Fig. 5 the utility model gland body structural principle generalized section; The blue body structure principle section master of the eccentric leather of Fig. 6 the utility model looks schematic diagram; The blue body structure principle diagrammatic cross-sectional side elevation of the eccentric leather of Fig. 7 the utility model; Fig. 8 the utility model handle body structural principle schematic diagram.

The specific embodiment:

It is made of packing spheroid 1, packing box 2, leather orchid 3, force bearing ring 4, gland 5, handle 6.Packing box 2 one ends in the groove 7 that the internal thread of packing box 2 is connected with packing spheroid 1, packing box 2 other ends are stuck in leather blue 3, the external screw thread of packing box 2 is connected movingly with the internal thread of gland 5, one end of leather blue 3 withstands on the force bearing ring 4 and connects movingly, and the other end of force bearing ring 4 withstands on the cavity top of gland 5.Gland 5 is provided with handle 6.Leather blue 3 is to have the blue or not eccentric leather of eccentric leather blue.Handle is by being threadedly connected on the gland, one in direction.Handle or one pass gland body.The blue end of leather has a boss 8.Specific embodiment: the utility model is by the blue aligning effect of a split type eccentric leather being arranged in the change of packing box gland advance distance and the packing box, having increased the power to vertical polished rod direction, and the effect that alleviates tight packing box gland power is arranged; The packing box intracavity diameter increases, and the packing addition is increased, and the aligning angle increases; The force bearing ring of packing box chamber inner bottom part changes the stressed of packing, and adjustable base ring prevents that packing from bringing in the well, tightly seals up polished rod and annular space under the acting in conjunction of packing and force bearing ring blue at the off-centre leather, thereby seals polished rod.Simultaneously, guarantee that eccentric leather is blue, force bearing ring does not contact with polished rod with adjustable base ring, not ground rods; The aligning spheroid contacts with face with polished rod, and the comprehensive function of several respects makes the sealing effectiveness of " radially " packing box reach best.Be installed in aboveground packing box and have 40 mouthfuls; add packing at every turn and shortened to 20 minutes to half an hour by one hour; add the packing time ratio and shortened half the time originally; adding the packing cycle on average extended to more than half a year by one month; individual well is young to add packing 52 times; individual well year can shut down 33 hours less in addition; individual well can influence 9 tons of output less, and 1.20 ten thousand yuan of the wound output values are installed 40 mouthfuls of wells and calculated; can shut down less 1320 hours; promptly 55 days, 495 tons of few influence oil, 59.4 ten thousand yuan of the wound output values; 80,000 yuan of deduction costs, 51.4 ten thousand yuan of wound economic benefits.Be that example compares explanation with ten mouthfuls of wells below: 10 mouthfuls of wells add packing time shortening 369 minutes, add the packing cycle stretch-out 534 days, and individual well adds packing time shortening 37 minutes, adds the packing cycle stretch-out 53 days.See Table 1.

Table 1:

Effect contrasted before and after " radially " packing box was installed

Claims

1, a kind of oilfield pumping well bore is to the packing box device, it is made of packing spheroid, packing box, leather orchid, force bearing ring, gland, handle, it is characterized in that: packing box one end through the internal thread of packing box be connected with the packing spheroid, the packing box other end is stuck in the blue groove of leather, the external screw thread of packing box is connected movingly with the internal thread of gland, the blue end of leather withstands on the force bearing ring and connects movingly, and the other end of force bearing ring withstands on the cavity top of gland.

2, oilfield pumping well bore according to claim 1 is to the packing box device, and it is characterized in that: gland is provided with handle.

3, oilfield pumping well bore according to claim 1 is characterized in that to the packing box device: the leather orchid is to have the blue or not eccentric leather of eccentric leather blue.