Cleaning fiber and method for using cleaning fiber for cleaning well

A fibrous, clean technology that can be used in wellbore flushing, earthmoving, wellbore/well components, etc., to solve problems such as labor and time-consuming, downhole collapse, and increased operating costs.

Inactive Publication Date: 2013-12-04
北京格瑞迪斯石油技术有限公司
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Problems solved by technology

[0006] Optimizing the performance of drilling fluid by traditional processing technology requires processing the drilling fluid and changing the performance of the drilling fluid. The treatment is labor-intensive and time-consuming, which increases the operating cost. At the same time, due to the instability of the drilling fluid performance and the large-volume circulation of the well, it also brings downhole Collapse and other complex risks

Method used

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  • Cleaning fiber and method for using cleaning fiber for cleaning well
  • Cleaning fiber and method for using cleaning fiber for cleaning well

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Embodiment Construction

[0018] Such as figure 1 As shown, the cleaning fiber 1 of the present invention is made of virgin monofilament polypropylene material. The cleaning fiber 1 is filamentous, with a length of 12-13 mm and a diameter of 21 microns. The cleaning fiber 1 is compatible with all water-based , oil-based and other drilling fluid systems are compatible.

[0019] Such as figure 2 Shown is the method of using the cleaning fiber to clean the well, which includes the following steps:.

[0020] (1) Put 15-30 cubic meters of drilling fluid in the upper water tank, and add 5-10 cubic meters of drilling fluid if the wellbore condition is complicated;

[0021] (2) Add 1.0-1.2KG of the cleaning fiber 1 per cubic meter of drilling fluid for mixing, and the total adding time is controlled at 30 minutes;

[0022] (3) Stir the mixed drilling fluid and cleaning fiber 1 for about 2 hours, and fully stir the fiber cleaning slurry for use;

[0023] (4) According to the normal displacement, the fiber ...

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Abstract

The invention relates to a cleaning fiber and a method for using the cleaning fiber for cleaning a well and belongs to the technical field of cleaning a wellhole of a petroleum drilled well. The cleaning fiber is made of raw single fiber polypropylene, in the shape of a long thread and has the length ranging from 12mm to 13mm and the diameter of 21micrometers. The cleaning fiber is made of the raw single fiber polypropylene and has the features of being resistant to heat, high in strength and dispersion, sluggish and the like. The cleaning fiber is made into short fibers which are 12mm to 13mm long and have the diameter of 21micrometers. The short fibers are added into drilling liquid and do not change the property of the drilling liquid. The cleaning fibers in the blended fiber cleaning thick liquid can improve the cutting-carrying capacity of the drilling liquid in a multiplied mode and the well cleaning efficiency is greatly higher than that of regular pure drilling liquid for cleaning.

Description

technical field [0001] The invention relates to the technical field of oil drilling borehole cleaning, in particular to a cleaning fiber and a well cleaning method using the fiber. Background technique [0002] During drilling operations, affected by factors such as wellbore structure, drilling fluid performance, formation conditions, and drilling parameters, there are problems in wellbore cleaning. Conventional wellbore cleaning uses the following technologies: [0003] (1) Optimizing the performance of the drilling fluid, improving the wellbore cleaning and rock-carrying ability of the drilling fluid; [0004] (2) Sub-section circulation of large displacement, eye-catching in time; [0005] (3) Thick slurry replaces and seals some well sections with sealing slurry. [0006] Optimizing the performance of the drilling fluid by the traditional treatment process requires processing the drilling fluid and changing the performance of the drilling fluid. The treatment is labor-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B21/00E21B21/06
Inventor 贺志刚刘建华劳纯宇温安仁
Owner 北京格瑞迪斯石油技术有限公司
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