CN205117304U - A long-stroke pumping unit - Google Patents

Abstract

The utility model belongs to the technical field of oil recovery engineering, especially, relate to a long stroke beam-pumping unit. The pumping unit is designed for solving the problems that the pumping phenomenon of the traditional pumping unit causes the increase of liquid energy consumption per ton and the large leakage of the pumping unit is bailed, and comprises an electric control cabinet 1, a roller reducer (2), a motor (3), a base (4), a roller base (5), a head sheave frame (6), a head sheave (7), a steel wire rope (8), a well head (9), a sleeve (10), an oil pipe (11), a pumping rod (12), a long-stroke oil pump plunger (13) and a long-stroke oil pump cylinder (14); wherein the base (4) is connected on the foundation of the well head (9) by bolts, the drum reducer (2) is wound with a steel wire rope (8), the steel wire rope (8) is connected with the sucker rod (12) through the well head (9), and the tower has the advantages of reasonable stress, compact structure, improved mining efficiency and the like.

Description

A long-stroke pumping unit

technical field

The utility model belongs to the technical field of oil production engineering, in particular to a long-stroke pumping unit.

Background technique

Due to the serious "empty pumping" phenomenon caused by the inherent oil production method of the traditional pumping unit, the energy consumption per ton of liquid is increased; the wear of the pump used in the lifting pumping unit is not easy to control, resulting in large leakage and high failure rate of the lifting pumping unit . Moreover, a very important problem in the development process of low-yield oil wells is the problem of wax deposition in oil wells. This problem has seriously affected the normal production of oil wells and reduced the efficiency and speed of oil recovery.

Contents of the invention

The purpose of the utility model is to provide a long-stroke pumping unit that can solve the problem of “empty pumping” of the traditional pumping unit, which causes increased energy consumption per ton of liquid, large leakage of the lifting pumping unit, high failure rate and wax formation in the oil well.

The utility model is realized by the following technical solutions: it consists of a power control cabinet, a drum reducer, a motor, a base, a drum seat, a sky wheel frame, a sky wheel, a steel wire rope, a wellhead, a casing, an oil pipe, a sucker rod, and a long-stroke pump. Oil pump plunger and long-stroke oil well pump barrel; the base is connected to the foundation of the wellhead by bolts, the power control cabinet is connected to the base by bolts, the roller reducer is connected to the base by bolts through the roller seat, and the motor and roller reducer are connected by bolts The coupling is connected with bolts, the sky wheel frame is connected with the base by bolts, the top of the sky wheel frame is connected with the sky wheel, the steel wire rope is wound on the drum reducer, the steel wire rope is connected with the sucker rod through the wellhead, and the lower end of the sucker rod is connected with the long-stroke oil well pump The plunger, the plunger of the long-stroke oil well pump is connected with the barrel of the long-stroke oil well pump.

The sky wheel frame is an inclined tower structure.

The drum reducer is an involute cylindrical gear two-tooth difference reducer drum.

The long-stroke oil well pump barrels are connected by long-stroke oil well pump barrels of standard length, and the long-stroke oil well pump barrels are connected by transitional sealing rings.

Compared with the prior art, the utility model has the following advantages:

1) The pump barrel and plunger seal of the long-stroke pump replace the pump and ordinary oil pipe seal of the lift pumping unit, which avoids the problems of large leakage and short service life of the lift pumping unit.

2) The motor and the reducer are connected through a coupling, and the connection reliability is high. The drum is an involute cylindrical gear two-tooth difference reducer drum, and the reducer is installed inside the drum, so that the structure is compact and the efficiency is high.

3) The sky wheel frame is an inclined tower structure, the bottom of the tower is connected to the base by bolts, and the force of the tower is more reasonable.

Description of the drawings: Fig. 1 is a schematic structure diagram of the utility model; Fig. 2 is a connection structure diagram of the pump cylinder 14 of the medium and long stroke oil well pump of the utility model.

Specific embodiments: the utility model is further described in detail in conjunction with the accompanying drawings: it consists of a power control cabinet 1, a drum reducer 2, a motor 3, a base 4, a drum seat 5, a sky wheel frame 6, a sky wheel 7, and a steel wire rope 8 , wellhead 9, casing 10, tubing 11, sucker rod 12, long-stroke oil well pump plunger 13 and long-stroke oil well pump barrel 14; wherein the base 4 is connected to the foundation of the wellhead 9 by bolts, and the electric control cabinet 1 It is connected with the base 4 by bolts, the roller reducer 2 is connected with the base 4 by bolts through the roller seat 5, the motor 3 and the roller reducer 2 are connected by couplings and bolts, the sky wheel frame 6 is connected with the base 4 by bolts, and the sky wheel The top of the frame 6 is connected with the sky wheel 7, the drum reducer 2 is wound with a steel wire rope 8, the steel wire rope 8 is connected with the sucker rod 12 through the wellhead 9, the lower end of the sucker rod 12 is connected with the plunger 13 of the long-stroke oil well pump, and the plunger of the long-stroke oil well pump 13 is connected with the long-stroke oil pump cylinder 14 in cooperation.

The sky wheel frame 6 is an inclined tower structure.

The drum reducer 2 is a drum of an involute cylindrical gear two-tooth difference reducer.

The long-stroke oil well pump barrels 14 are formed by connecting long-stroke oil well pump barrels 14 of standard length, and the long-stroke oil well pump barrels 14 are connected by transition seal rings 15 .

When used on site, place the base 4 on the foundation of the wellhead 9 of the oil well, connect the power control cabinet 1, the drum seat 5, and the sky wheel frame 6 to the base 4, and connect the drum reducer 2, the sky wheel 7 to the drum seat 5 and the sky wheel On frame 6, connect wire rope 8, sucker rod 12, long-stroke pump plunger 13. During work, it is pumped 3-15 times per hour, and each pumping takes 2-3 minutes. The electric control cabinet 1 controls the motor 3 to rotate, and drives the plunger of the long-stroke oil pump through the wire rope 8, the sky wheel 7, and the sucker rod 12. 13 Move up and down to complete the oil pumping work of the long-stroke pumping unit, avoid the "empty pumping" phenomenon of the traditional pumping unit, avoid the large leakage of the lifting pumping unit, the high failure rate and the wax deposition of the oil well.

Claims (4)

1. A long-stroke pumping unit, characterized in that it consists of a power control cabinet (1), a drum reducer (2), a motor (3), a base (4), a drum seat (5), and a sky wheel frame ( 6), top wheel (7), wire rope (8), wellhead (9), casing (10), tubing (11), sucker rod (12), long-stroke oil well pump plunger (13) and long-stroke pump The oil pump barrel (14) is composed of; the base (4) is connected to the foundation of the wellhead (9) by bolts, the power control cabinet (1) is connected to the base (4) by bolts, and the roller reducer (2) passes through the roller seat ( 5) It is connected with the base (4) by bolts, the motor (3) and the roller reducer (2) are connected by couplings and bolts, the sky wheel frame (6) is connected with the base (4) by bolts, the sky wheel frame (6) ) top is connected with the sky wheel (7), the steel wire rope (8) is wound on the drum reducer (2), the steel wire rope (8) is connected with the sucker rod (12) through the wellhead (9), and the lower end of the sucker rod (12) is connected with a long The plunger (13) of the stroke oil well pump and the plunger (13) of the long-stroke oil well pump are matched with the pump barrel (14) of the long-stroke oil well pump. 2. A long-stroke pumping unit according to claim 1, characterized in that the sky wheel frame (6) is an inclined tower structure. 3. A long-stroke pumping unit according to claim 1, characterized in that the drum reducer (2) is an involute cylindrical gear two-tooth differential reducer drum. 4. A long-stroke oil pumping unit according to claim 1, characterized in that: the long-stroke oil pump barrel (14) is connected by long-stroke oil pump barrels (14) of standard length, and the long-stroke pumping The oil pump barrels (14) are connected by a transition seal ring 15.