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Descaling method for oil well produced water

A technology for producing water and oil wells, which is used in mining wastewater treatment, chemical instruments and methods, water/sewage treatment, etc., and can solve problems such as poor descaling effect and low work efficiency

Pending Publication Date: 2020-04-17
YANGTZE UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to: provide a compact structure, ingenious design; to solve the problem of poor descaling effect and low work efficiency existing in the descaling method of oil well produced water.

Method used

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  • Descaling method for oil well produced water
  • Descaling method for oil well produced water
  • Descaling method for oil well produced water

Examples

Experimental program
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Embodiment Construction

[0044] The descaling method for the produced water of the oil well is composed of a filter tank 1, a filter disc 2, a filter cartridge 3, a liquid supply pump 4, an alkali supply pump 5, a medicine supply pump 6, a booster pump 7 and a main manifold 12 (see the appendix figure 1 ).

[0045] The bottom of the filter tank 1 is connected to the liquid supply pump 4 through the liquid inlet valve 8 and the liquid inlet pipe 9; the liquid supply pump 4 is connected with the external oil well produced water storage tank; The pipe 9 feeds the oil well produced water into the filter tank 1 .

[0046] The inside of the filter tank 1 is arranged with a plurality of filter discs 2 at intervals up and down (see the attached figure 2 ); the filter disc 2 is a hollow disc-shaped structure; there is a certain gap between the periphery of the filter disc 2 and the inner wall of the filter tank 1 (see the attached Figure 5 ); in this way, after the produced water from the oil well enters t...

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Abstract

The invention relates to a descaling method for oil well produced water, and belongs to the technical field of oil well produced water treatment equipment. According to the invention, the descaling method is compact in structure and ingenious in design; by arranging a filter disc and a filter cylinder in a filter tank, the yield of the existing descaling device is increased; by adjusting the PH value and controlling the temperature, the re-dissolution of precipitates is inhibited so as to improve the descaling effect; and with the method, the problems of poor descaling effect and low descalingefficiency of the existing descaling device are solved, and the requirement of enterprises on oil well produced water descaling is met.

Description

technical field [0001] The invention relates to a descaling method for oil well produced water, which belongs to the technical field of oil well produced water treatment equipment. Background technique [0002] In the oil field production system, the produced water produced from the oil well is divided into three types: sodium bisulfate type, calcium chloride type and mixed type. Calcium chloride type oil well produced water contains more Ca 2+ and Cl - , the sodium bisulfate water type oil well produced water contains more Na + and HSO 4 - , mixed well produced water contains more Ca 2+ , Cl - 、Na + and HSO 4 - . During the transportation of oil well produced water, Ca 2+ and HSO 4 - A large amount of scaling substances such as acid salts and sulfur salts will be precipitated, making the transmission pipelines and ground equipment often scaled and blocked. [0003] In order to solve the problem of oil well produced water clogging transmission pipelines and sur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F103/10
CPCC02F9/00C02F1/5236C02F1/001C02F1/66C02F2303/22C02F2103/10
Inventor 冯定陈文康周兰张红
Owner YANGTZE UNIVERSITY
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