Beam-pumping unit

A beam-pumping unit and beam-traveling technology, which are applied in the direction of exploitation fluid, wellbore/well parts, earthwork drilling and production, etc., can solve the problems of unable to automatically adjust the position of the center of gravity of the balance block at any time, the pumping unit cannot work normally, and the lubrication Oil is difficult to flow smoothly and other problems, to achieve the effect of small balance torque, fast heating speed, and prevent freezing

A beam-pumping unit and beam-traveling technology, which are applied in the direction of exploitation fluid, wellbore/well parts, earthwork drilling and production, etc., can solve the problems of unable to automatically adjust the position of the center of gravity of the balance block at any time, the pumping unit cannot work normally, and the lubrication Oil is difficult to flow smoothly and other problems, to achieve the effect of small balance torque, fast heating speed, and prevent freezing

CN104775795AInactive Publication Date: 2015-07-15SICHUAN JINXIN CO LTD
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Examples

Experimental program
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Effect test

Embodiment 1

[0031]A beam pumping unit, comprising a bracket 1, a motor 9, a reducer 10, a crank 7, a connecting rod 8, a beam 2, a donkey head 3, a constant temperature heater 17, a balance arm 4, a balance weight 5 and a support rod 6. The traveling beam 2 is movably connected to the bracket 1, the donkey head 3 is fixed on one end of the traveling beam 2, the balance arm 4 is movably connected to the other end of the traveling beam 2, and the balance weight 5 is fixed on the balance On the arm 4, one end of the support rod 6 is movably connected to the bracket 1, and the other end is movably connected to the balance arm 4, and the beam 2 cooperates with the support rod 6 to drive the balance weight 5 to swing; the motor 9 and the reducer 10 connected, the reducer 10 is connected with the crank 7 to drive the crank 7 to rotate, the connecting rod 8 is movably connected between the crank 7 and the beam 2, the crank 7 drives the beam 2 to swing through the connecting rod 8, and the constant...

Embodiment 2

[0036] A beam pumping unit, comprising a bracket 1, a motor 9, a reducer 10, a crank 7, a connecting rod 8, a beam 2, a donkey head 3, a constant temperature heater 17, a balance arm 4, a balance weight 5 and a support rod 6. The traveling beam 2 is movably connected to the bracket 1, the donkey head 3 is fixed on one end of the traveling beam 2, the balance arm 4 is movably connected to the other end of the traveling beam 2, and the balance weight 5 is fixed on the balance On the arm 4, one end of the support rod 6 is movably connected to the bracket 1, and the other end is movably connected to the balance arm 4, and the beam 2 cooperates with the support rod 6 to drive the balance weight 5 to swing; the motor 9 and the reducer 10 connected, the reducer 10 is connected with the crank 7 to drive the crank 7 to rotate, the connecting rod 8 is movably connected between the crank 7 and the beam 2, the crank 7 drives the beam 2 to swing through the connecting rod 8, and the constan...

Embodiment 3

[0039] A beam pumping unit, comprising a bracket 1, a motor 9, a reducer 10, a crank 7, a connecting rod 8, a beam 2, a donkey head 3, a constant temperature heater 17, a balance arm 4, a balance weight 5 and a support rod 6. The traveling beam 2 is movably connected to the bracket 1, the donkey head 3 is fixed on one end of the traveling beam 2, the balance arm 4 is movably connected to the other end of the traveling beam 2, and the balance weight 5 is fixed on the balance On the arm 4, one end of the support rod 6 is movably connected to the bracket 1, and the other end is movably connected to the balance arm 4, and the beam 2 cooperates with the support rod 6 to drive the balance weight 5 to swing; the motor 9 and the reducer 10 connected, the reducer 10 is connected with the crank 7 to drive the crank 7 to rotate, the connecting rod 8 is movably connected between the crank 7 and the beam 2, the crank 7 drives the beam 2 to swing through the connecting rod 8, and the constan...

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Abstract

The invention discloses a beam-pumping unit, which comprises a bracket, a reducer, a crank, a connecting rod, a beam, a horse head, constant-temperature heaters, a balance arm, a balance block and a supporting rod, wherein the beam is movably connected to the bracket; the horse head is fixedly arranged on one end of the beam; the balance arm is movably connected to the other end of the beam; the balance block is fixedly arranged on the balance arm; one end of the support rod is movably connected to the bracket; the other end of the supporting rod is movably connected to the balance arm; the reducer is connected with the crank; the connecting rod is movably connected between the crank and the beam; the constant-temperature heaters are fixedly arranged in the tank body of the reducer for heating lubricating oil. The beam-pumping unit has the two technical advantages that the peak value current of a motor can be reduced when the horse head moves to an upper stop, the peak value current of a motor and the valve current torque of the reducer are reduced when the horse head moves to a lower stop, and the lubricating oil in the reducer can be prevented from icing or becoming a thick state under a low-temperature state.

Description

technical field [0001] The invention relates to the technical field of oil production machinery, in particular to a beam-type oil pumping unit operating at an ultra-low stroke frequency, which can realize smooth oil production under low temperature working conditions. Background technique [0002] In the oil exploitation industry, the beam pumping unit is usually used to extract oil from the oil well. At present, the conventional beam pumping unit generally consists of a rope hanger, a donkey head, a beam, a connecting rod, a reducer, and a crank , balance device, base, bracket and motor. For example, Chinese Patent No. "201010143444.2" disclosed a special-shaped beam-extended range compound balanced pumping unit on September 21, 2011. Two cranks on both ends of the output shaft, the main balance weight on the crank, connecting rod, beam, rear special-shaped beam, front special-shaped beam, cross-arm beam on the front special-shaped beam, auxiliary balance weight, and b...

Claims

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Application Information

Patent Timeline
15 Jul 2015
Publication
CN104775795A
IPC
E21B43/00
CPC
E21B43/00
Inventors
何运强; 杨学梅