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A kind of manufacture method of geopolymer oil well cement

A technology for oil well cement and a manufacturing method, which is applied in the field of oil well cement production, can solve problems such as difficulty in guaranteeing product quality stability, no production process, and great quality control problems, and achieves good industrial application prospects, simple production process flow, and high product quality. Quality remains stable

Active Publication Date: 2019-02-01
JIAHUA SPECIAL CEMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The shortcomings of the above four patents are: since most of them use industrial waste as the main raw material, the quality of the raw material fluctuates greatly, and there is no stable production process at the same time, just mixing several materials, which makes the quality of the product stable The performance cannot be guaranteed, and it is not suitable for the demanding construction process requirements of oil and gas well cementing
This patent mixes various materials evenly by mixing powders, but there are as many as 16 kinds of raw materials, and there are big problems in its quality control, and it is difficult to guarantee the stability of product quality

Method used

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  • A kind of manufacture method of geopolymer oil well cement
  • A kind of manufacture method of geopolymer oil well cement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Ingredients: weigh 85.5 parts of kaolinite, 10.3 parts of limestone, and 4.2 parts of dihydrate gypsum for batching;

[0027] Grinding: Send the prepared raw materials into the mill for mixing and ball milling, and the specific surface is controlled to 320 m 2 / kg;

[0028] Calcination: Send the ground raw material powder into a high-temperature furnace for calcination, the calcination temperature is 850°C, and the calcination time is 35 minutes;

[0029] Mixing: Weigh 75 parts of calcined mixed powder, 8 parts of sodium hydroxide, 10 parts of sodium silicate, and 5 parts of fly ash for batching, send them into the mill and mix them evenly, and the specific surface control value is 550 m 2 / kg;

[0030] Warehousing and packaging: Send the uniformly mixed powder into the storage warehouse, and pack it when the temperature of the cement drops below 40°C. Use airtight packaging to prevent the cement from absorbing moisture.

[0031] The performance parameters of the pre...

Embodiment 2

[0033] Ingredients: weigh 80 parts of kaolinite, 20 parts of limestone, and 8 parts of dihydrate gypsum for batching;

[0034] Grinding: Send the prepared raw materials into the mill for mixing and ball milling, and the specific surface is controlled to 350 m 2 / kg;

[0035] Calcination: Send the ground raw material powder into a high-temperature furnace for calcination, the calcination temperature is 900°C, and the calcination time is 40 minutes;

[0036] Mixing: Weigh 70 parts of calcined mixed powder, 8 parts of sodium hydroxide, 15 parts of sodium silicate, and 10 parts of fly ash for batching, send them into the mill and mix them evenly, and the specific surface control value is 600 m 2 / kg;

[0037] Warehousing and packaging: Send the uniformly mixed powder into the storage warehouse, and pack it when the temperature of the cement drops below 40°C. Use airtight packaging to prevent the cement from absorbing moisture.

[0038] The performance parameters of the prepared...

Embodiment 3

[0040]Ingredients: weigh 65.3 parts of kaolinite, 29.6 parts of limestone, and 5.2 parts of dihydrate gypsum for batching;

[0041] Grinding: Send the prepared raw materials into the mill for mixing and ball milling, and the specific surface is controlled to 450 m 2 / kg;

[0042] Calcination: Send the ground raw material powder into a high-temperature furnace for calcination, the calcination temperature is 980°C, and the calcination time is 50 minutes;

[0043] Mixing: Weigh 65 parts of calcined mixed powder, 10 parts of sodium hydroxide, 20 parts of sodium silicate, and 15 parts of fly ash for batching, send them into the mill and mix them evenly, and the specific surface control value is 600 m 2 / kg;

[0044] Warehousing and packaging: Send the uniformly mixed powder into the storage warehouse, and pack it when the temperature of the cement drops below 40°C. Use airtight packaging to prevent the cement from absorbing moisture.

[0045] The performance parameters of the pr...

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Abstract

The invention relates to a manufacturing method of geopolymer oil well cement. The method is characterized by comprising the following steps in order: compounding, grinding, calcination, mixing, warehousing and packaging. The method provided by the invention can manufacture the geopolymer oil well cement with good volume stability, high temperature resistance, CO2 resistance, and sulfate attack resistance. And the cement can be effectively applied to oil-gas well cementation in areas with complex geological conditions, and can achieve very good cementing quality.

Description

technical field [0001] The invention relates to the field of oil well cement production, in particular to a method for manufacturing geopolymer oil and gas well cementing cement. Background technique [0002] At present, with the development of oil and gas resources in my country, there are more and more unconventional and complex oil and gas reservoir resources, and the requirements for cementing materials are also getting higher and higher. In some special formation cementing operations, such as heavy oil thermal recovery wells, high temperature wells, shale gas wells, high CO 2 、H 2 For oil and gas wells containing corrosive substances such as S and sulfate, general portland oil well cement is limited by its own material characteristics and cannot meet the cementing requirements. Geopolymeric cement hydrate is an aluminosilicate compound with a three-dimensional network structure. It has good durability and environmental friendliness. Well needs. [0003] For example, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B7/26
CPCY02P40/10
Inventor 古安林阳运霞喻庆华黎茜张斌张凌志
Owner JIAHUA SPECIAL CEMENT
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