A porous oil nozzle for oil and gas well testing

A technology for oil and gas wells and nozzles, which is used in wellbore/well components, wellbore/well valve devices, and earth-moving drilling. It can solve problems such as equipment damage and safety hazards, high replacement costs, and environmental pollution. Effects of floor area, high throttling differential pressure, simplified complexity

Inactive Publication Date: 2016-11-16
CNPC GREATWALL DRILLING ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The object of the present invention is to provide a porous oil nozzle for oil and gas well testing, which overcomes the problems of the existing oil nozzle such as fragility, high replacement cost, easy environmental pollution, equipment damage and high safety hazards. The porous jet reduces the erosion damage, effectively prolongs the service life of the nozzle, and avoids environmental pollution and safety hazards

Method used

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  • A porous oil nozzle for oil and gas well testing
  • A porous oil nozzle for oil and gas well testing

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Embodiment Construction

[0030] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

[0031] Such as figure 1 , figure 2 As shown, the porous nozzle 100 for oil and gas well testing provided by the present invention includes a hollow nozzle outer sleeve 1, the inner sealing of the nozzle outer sleeve 1 is fixedly provided with a nozzle inner core 2, and the nozzle inner core 2 is provided with a plurality of Inner core channels 21 that penetrate up and down and are arranged in parallel. Generally, the top end of the inner core channel 21 is the inlet end, and the bottom end of the inner core channel 21 is the outlet end. The inner core channels 21 have a small diameter and are arranged according to certain rules. In this embodiment, the ratio range of the sum of the flow cross-sectional areas of the multiple in...

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Abstract

The invention provides a porous oil nozzle for oil and gas well testing. The porous oil nozzle comprises a hollow oil nozzle outer sleeve; an oil nozzle inner core is fixedly sealed in the oil nozzle outer sleeve; the inside of the oil nozzle inner core is provided with a plurality of vertically-through and parallel inner core ducts. The porous oil nozzle for oil and gas well testing solves the problems that conventional oil nozzles are liable to breakage, high in replacement cost, and liable to cause environmental pollution, apparatus damage and high potential safety hazards. The porous oil nozzle for oil and gas well testing realizes multiple jets and reduces erosion damage, so that the service life of the oil nozzle is prolonged and environmental pollution and potential safety hazards are prevented.

Description

technical field [0001] The invention relates to the field of oil and gas well testing equipment in petroleum engineering, in particular to a porous nozzle for oil and gas well testing. Background technique [0002] The nozzle is an important part of the surface testing process and production process of oil and gas wells. The erosion and leakage of the nozzle may cause serious consequences such as loss of well control, equipment damage, and environmental pollution. In the surface process of complex well testing, in order to maintain the pressure balance between complex well testing and the headers of the drilling floor, a throttling device - a nozzle is generally installed. Common oil nozzles for oil and gas well testing are composed of nozzle sleeves with fixed dimensions and nozzle inner cores with different hole sizes. Generally, the inner core of the oil nozzle is a through hole of equal diameter. When the oil and gas well discharge fluid passes through the nozzle valve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B34/02
CPCE21B34/02
Inventor 彭贤强刘玲莉王江云
Owner CNPC GREATWALL DRILLING ENG
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