Elastic seat sealing rod type pump
A rod type pump, elastic technology, applied in the direction of pumps, pumps with flexible working elements, liquid variable capacity machines, etc., can solve the problems of oil leakage, sucker rod loss, and wear of the seat seal moving up and down, and achieve high pump efficiency. , the effect of high job success rate
Pending Publication Date: 2020-02-21
尚云英
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Problems solved by technology
[0002] In the past, deep well pumping usually required an oil well pump to be installed underground. Although the traditional oil well pump can realize the oil pumping operation, there is a gap between the seat seal of the traditional rod pump and the joint of the oil pipe, and there is a gap between the plunger and the pump barrel when pumping oil. The friction causes the seat seal to move up and down and wear, which will cause oil leakage and thus cause the phenomenon of pumping oil downwards, so that the pump efficiency will be greatly reduced, affecting the efficiency of oil pumping operations
When the plunger sand is stuck on the pump barrel, the pumping operation cannot continue
This can result in significant damage to the well
Rod pump seat seals also have a sealing body that uses a cone to seal, because there are gravel, oil sludge and other sundries in the downhole that are easily pasted on the sealing surface of the cone body, resulting in poor sealing effect, and the above problems also exist
Method used
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Embodiment Construction
[0011] Now give an example to further illustrate the present invention:
[0012] Seat seal joint 1, the size is 107mm outer diameter, the minimum inner diameter is 71mm, the inner diameter of the seat seal pipe connection is the inner diameter of the 3-inch and a half oil pipe, the joint on the hollow shaft 2, the largest outer diameter is 74mm, the outer diameter of the suspension is 71mm, and the pull rod is outside the centering port Diameter 42mm, inner diameter 24mm, sealing inner sleeve 3, outer diameter 70mm, inner diameter 64mm, sealing outer sleeve 4, outer diameter 82mm, inner diameter 70mm, seat seal lower joint 5, outer diameter 95mm, sealing surface size 82mm, connected to 3.5 inch oil pipe The inner diameter of the lower end is 71mm, the hollow shaft is 6, the outer diameter of the sealing surface is 64mm, the inner hole diameter is 48mm, the pump barrel joint is 7, and the total length is 120mm. 20mm high guide cone. Tie rod 8, outer diameter 19mm, plunger uppe...
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The invention relates to an elastic seat sealing rod type pump for oil field oil extraction. The elastic seat sealing rod type pump comprises a metal elastic seat sealing, a rod type pump and a bottomvalve, wherein the metal elastic seat seal is connected with a pump cylinder through a hollow shaft, the seat sealing is composed of a seat sealing joint, a seat sealing lower joint, a metal elasticouter sleeve and a metal elastic inner sleeve, the seat sealing joint is in coaxial threaded connection with the seat sealing lower joint, and the metal elastic outer sleeve and the metal elastic inner sleeve are sequentially arranged in the seat sealing lower joint. The elastic seat sealing rod type pump has the advantages that the seat sealing is no leaking, pump efficiency is high, the operation success rate is high, unsealing can be carried out in any states, automatic unsealing can not be carried out in normal working state, and automatic unsealing can be carried out under serious sand clamping situation.
Description
technical field [0001] The utility model relates to an elastic seat seal rod type pump for pumping oil in an oil field. Background technique [0002] In the past, deep well pumping usually required an oil well pump to be installed underground. Although the traditional oil well pump can realize the oil pumping operation, there is a gap between the seat seal of the traditional rod pump and the joint of the oil pipe, and there is a gap between the plunger and the pump barrel when pumping oil. The friction causes the seat seal to move up and down to wear, which will cause oil leakage and thus cause the phenomenon of pumping oil downwards, so that the pump efficiency will be greatly reduced, affecting the efficiency of oil pumping operations. When the plunger sand is stuck on the pump barrel, the pumping operation cannot be continued and the pump needs to be lifted out, because the plunger cannot be lifted out alone, which will cause the loss of the sucker rod. This can result i...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F04B47/02E21B43/00
CPCF04B47/02E21B43/126
Inventor 尚云英
Owner 尚云英