Slurry for extracting and plugging operation of oil and gas fields and using method thereof

A technology for oil and gas fields and operations, applied in the field of oil and gas field mining and sealing operation slurry, can solve problems such as adverse effects on soil and water quality, inability to fill gaps, toxicity of organic additives, etc. low effect

Inactive Publication Date: 2012-07-25
TIANJIN YUYANG SUPERFINE MINERAL POWDER PROCESSING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used slurry is made by mixing and stirring three kinds of raw materials: ultra-fine cement, ultra-fine slag and ultra-fine silicon powder. The specific surface area of ​​the ultra-fine cement and ultra-fine slag is 650, and the particle size 0.2μm, because the slurry is relatively fine, it is suspended in water, and it is easy to layer, so the existing slurry has a poor effect on supporting holes and has a short service lif

Method used

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Example Embodiment

[0015] The present invention will be described in further detail below through specific examples. The following examples are only descriptive and not restrictive, and cannot limit the protection scope of the present invention.

[0016] A slurry for oil and gas field mining and sealing operations, its raw materials are composed of ultrafine cement, ultrafine slag, ultrafine silica fume, gypsum and fly ash, and the weight parts of each component are:

[0017] Superfine cement 30;

[0018] Superfine slag 30;

[0019] Superfine silica fume 15;

[0020] Plaster 15;

[0021] Fly ash 10.

[0022] The particle size of gypsum and fly ash is 25μm.

[0023] The above-mentioned oil and gas field mining and sealing operation slurry is used by mixing ultra-fine cement, ultra-fine slag, ultra-fine silica fume, gypsum and fly ash, and then adding water to the mixed raw materials and mixing them evenly. The ratio of parts to water is 4:5.

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Abstract

The invention relates to slurry for the extracting and plugging operation of oil and gas fields and a using method thereof. The slurry is composed of raw materials such as superfine cement, superfine slag, superfine silica powder, gypsum and fly ash. The using method comprises the following steps of: uniformly mixing the superfine cement, the superfine slag, the superfine silica powder, the gypsum and the fly ash, then adding water to the mixed raw materials, and uniformly mixing the raw materials to form the slurry for use. The slurry for the extracting and plugging operation of the oil and gas fields has reasonable design and is low in cost and long in service life. The slurry has the advantages of having high supporting strength on holes, being capable of filling the cracks of the inner wall of the holes, being safe and pollution-free, being simple and convenient in manufacturing and use and the like.

Description

technical field [0001] The invention relates to a slurry in the field of oil and gas fields, in particular to a slurry for oil and gas field mining and sealing operations and a use method thereof. Background technique [0002] In oil and gas field recovery and sealing operations, drilling machines are required to drill holes. In order to avoid hole collapse, grout needs to be poured into the holes to support the hole walls. At present, the commonly used slurry is made by mixing and stirring three kinds of raw materials: ultra-fine cement, ultra-fine slag and ultra-fine silicon powder. The specific surface area of ​​the ultra-fine cement and ultra-fine slag is 650, and the particle size The thickness is 0.2 μm. Since the slurry is relatively fine, it is in a suspended state in water and is easy to be layered. Therefore, the existing slurry has a poor effect of supporting holes and has a short service life. In addition, the oil and gas will generate greater pressure on the in...

Claims

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Application Information

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IPC IPC(8): C09K8/467
Inventor 霍玉林
Owner TIANJIN YUYANG SUPERFINE MINERAL POWDER PROCESSING
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