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Multistage swing type oil-gas-sand separating device

A separation device and swing-type technology, applied in filtration separation, separation method, liquid degassing and other directions, can solve the problems of increasing equipment, pipeline sand cleaning and maintenance workload, low oil yield, and high maintenance cost. The effect of super oil and gas sand separation ability, reduction of production and use costs, and simple internal structure

Pending Publication Date: 2020-02-11
FUNING COUNTY PETROL MECHANICAL LIMITED
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-stage swing-type oil-gas-sand separation device, which aims to solve the blockage and corrosion of downstream pipelines, valves, separators and other equipment in the prior art, and increase the workload of sand cleaning and maintenance of equipment and pipelines. High maintenance cost and low oil yield

Method used

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  • Multistage swing type oil-gas-sand separating device
  • Multistage swing type oil-gas-sand separating device
  • Multistage swing type oil-gas-sand separating device

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Embodiment 1

[0025] see Figure 1-5 , the present invention provides the following technical solutions:

[0026] In a specific embodiment of the present invention, including the casing 7, the upper and middle walls of the casing 7 are provided with densely distributed oil, gas, and sand inlet and outlet holes, which are convenient for a large amount of oil, gas, and sand to enter. An oil-gas separation mechanism is provided, and the oil-gas separation mechanism is a one-way exhaust valve 18 composed of a valve body 1, a ball core 2, and a valve seat 3, and an internal spiral valve composed of an exhaust pipe 4, a small spiral guide plate 5, and an oil pipe 6. The passage 17, a joint 8, and an outer spiral passage 16 formed by the upper half of the perforated oil pipe 9 and the large spiral guide plate 10 are connected from top to bottom. The one-way exhaust valve 18 is composed of the valve body 1, The ball core 2 and the valve seat 3 are composed. The outline of the valve body 1 is cylin...

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Abstract

The invention provides a multistage swing type oil-gas-sand separating device and belongs to the field of downhole oil recovery auxiliary tool equipment. The multistage swing type oil-gas-sand separating device comprises a sleeve, and dense and even oil, gas and sand inlet and outlet holes are formed in the upper middle wall of the sleeve. An oil-gas separating mechanism is arranged on the upper portion in the sleeve. An oil-sand separating mechanism is arranged on the lower portion in the sleeve. The lower end of the sleeve is fixedly connected with a sand discharge opening. The oil-gas separating mechanism is formed by connecting a one-way exhaust valve formed by a valve body, a ball element and a valve seat, an inner spiral channel formed by an exhaust pipe, a small spiral guide plate and an oil pipe, a connector and an outer spiral channel formed by an upper half section of an oil pipe with a hole and a large spiral guide plate from top to bottom. The oil-sand separating mechanismis formed by a lower half section of the oil pipe with the hole, multiple flow guide covers and multiple sand filtering screens. The multistage swing type oil-gas-sand separating device provides an ultrastrong separating effect, is convenient to repair, not high in replacing and maintaining cost and not likely to cause long-term halt production of a gas well.

Description

technical field [0001] The invention belongs to the field of auxiliary tools and equipment for underground oil production, and in particular relates to a multistage swing-type oil-gas-sand separation device. Background technique [0002] At present, in the surface engineering of oil and gas well exploitation, the production fluid of oil and gas wells is a mixed fluid composed of oil, gas, etc. At the same time, the mixed fluid is also mixed with mud and sand. Seriously, it has caused great harm to the ground gathering and processing system, causing blockage and corrosion of downstream pipelines, valves, separators and other equipment, and increasing the workload of sand cleaning and maintenance of equipment and pipelines. [0003] The existing separation device is not suitable for high pressure 30,000PSI and high erosion conditions and acid (CO2, H2S, HC1) conditions, and the original flange installation structure is difficult to disassemble and install. The separation barre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/34B01D19/00B01D36/04
CPCE21B43/34B01D19/0036B01D36/045
Inventor 周为清王晓飞周正中周正军
Owner FUNING COUNTY PETROL MECHANICAL LIMITED
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