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Transmission protection device of screw injection pump in the same well injection-production unit

A technology of injection-production and transmission protection in the same well, applied in the directions of machines/engines, pump components, mechanical equipment, etc., can solve problems such as poor stability of injection-production units in the same well, and achieve the effect of avoiding shocks

Active Publication Date: 2019-01-11
TIANJIN RONGHENG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention aims to solve the above-mentioned technical problem of poor stability of the injection-production unit in the same well, and discloses a transmission protection device for the screw reinjection pump in the injection-production unit in the same well

Method used

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  • Transmission protection device of screw injection pump in the same well injection-production unit
  • Transmission protection device of screw injection pump in the same well injection-production unit
  • Transmission protection device of screw injection pump in the same well injection-production unit

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Embodiment Construction

[0022] Further illustrate the present invention below in conjunction with embodiment and accompanying drawing.

[0023] Such as figure 1 In the embodiment shown, the transmission protection device of the screw reinjection pump in the injection-production unit of the same well is provided with an upper shroud 4 and a lower shroud 6 supported by the water-passing joint 5 and related components, and the upper end of the upper shroud 4 is It is fixed by the lock nut 3 and connected with the main shroud of the injection-production unit of the same well through the water joint 2, and the upper end of the intermediate drive shaft inside the transmission protection device is connected to the screw production pump of the injection-production unit of the same well through the threaded coupling 1 The main transmission shaft, the fourth spline shaft transmission pair 8 at the lower end of the cardan shaft joint transmission shaft inside the transmission protection device is connected to t...

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Abstract

The invention discloses a transmission protection device of a screw reinjection pump in a same-well injection-production unit. The device is composed of a middle transmission shaft, sealed cavities of bearings, spline shaft transmission pairs, universal coupling type transmission shafts and flow guide covers. The middle transmission shaft is borne by a rolling bearing and a thrust bearing, the spline shaft transmission pairs are arranged in the sealed cavities and connected with the middle transmission shaft, and the universal coupling type transmission shafts are connected with the middle transmission shaft. The transmission protection device can effectively offset upward axial force of the screw reinjection pump, and therefore impact of the upward axial force on a power device of the same-well injection-production unit is avoided, and violent vibration formed by the eccentric motion, relative to the axes of the flow guide covers, of the screw reinjection pump through the axial force is obviously reduced. The transmission protection device enables the unit to stably run for 360 days, and the protection device conforms to index requirements of the application of an oil field.

Description

technical field [0001] The invention belongs to a same-well injection-production system, in particular to a transmission protection device for a screw reinjection pump in a same-well injection-production unit. Background technique [0002] The water content is generally high in the middle and late stages of oilfield exploitation. Due to the continuous increase of water content, the oil-water separation treatment capacity will also increase accordingly. A large amount of sewage produced is reinjected through the long-distance ground gathering and transportation system and the underground high-pressure reinjection system, so that the energy consumption of water treatment increases year by year, resulting in a substantial increase in mining costs. [0003] The same-well injection-production unit is an effective technical means to solve the above problems in the oil field, but up to now, the same-well injection-production system is still in the research and development and relia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C15/00
Inventor 庄朝荣贾洪忠董树东
Owner TIANJIN RONGHENG GROUP
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