Supercharge Your Innovation With Domain-Expert AI Agents!

Metakaolin-based geopolymer for oil-gas reservoir well cementation and swelling agent thereof

A metakaolin and polymer technology, which is applied in the field of metakaolin-based geopolymers and expansion agents for oil and gas reservoir cementing, can solve problems such as large shrinkage of hardened bodies, and achieve high efficiency utilization, environmental protection, and cementing quality Improved effect

Active Publication Date: 2013-02-27
江苏洋河新城新材料有限责任公司
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to address the deficiencies and problems existing in the prior art, and provide a metakaolin-based geopolymer and its expansion agent for well cementing in oil and gas reservoirs, which can effectively solve the shrinkage rate of the hardened body in the metakaolin-based geopolymer. big flaw

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Metakaolin-based geopolymer for oil-gas reservoir well cementation and swelling agent thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Raw material weight ratio is:

[0026] Metakaolin 900g (500 mesh), slag powder (Jiangnan Grinding Co., Ltd., 200 mesh) 100g, expansion agent 60g, wherein in the expansion agent 30 parts of calcium oxide and 70 parts of calcium aluminate, the prepared metakaolin-based geopolymer was Its performance can be seen in Table 1.

Embodiment 2

[0028] Raw material weight ratio is:

[0029] Metakaolin 700g (80 mesh), fly ash (Nanjing Yangzi Thermal Power Company, 500 mesh) 300g, expansion agent 40g, wherein in the expansion agent 60 parts of magnesium oxide, 40 parts of sodium aluminate, the prepared metakaolin-based geopolymer was Its performance can be seen in Table 1.

Embodiment 3

[0031] Raw material weight ratio is:

[0032] Metakaolin 600g (400 mesh), phosphorus slag powder (Sichuan Longli Phosphorus Industry Co., Ltd., 80 mesh) 400g, expansion agent 40g, including 20 parts of magnesium chloride and 80 parts of aluminum potassium sulfate in the expansion agent, prepared metakaolin based geological polymerization The properties of the tested materials are shown in Table 1.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a metakaolin-based geopolymer for oil-gas reservoir well cementation and a swelling agent thereof, effectively overcoming the defect that contractibility rate of a hardened body having the metakaolin-based geopolymer is high. The swelling agent for the metakaolin-based geopolymer for the oil-gas reservoir well cementation comprises the following raw materials by weight percent: 20%-70% of at least one alkaline earth metal oxide or alkaline earth metal salt and 30%-80% of at least one inorganic aluminate.

Description

technical field [0001] The invention relates to a geopolymer for well cementing in oil and gas reservoirs and an expansion agent thereof, in particular to a metakaolin-based geopolymer and an expansion agent for well cementing in oil and gas reservoirs. Background technique [0002] Oil well cement paste has a high density and a large fluid loss, which not only increases the difficulty of oil and gas well replacement construction, but also easily causes damage to low-pressure leaky formations and oil and gas production layers. After solidification, oil well cement has defects such as large volume shrinkage, poor corrosion resistance, and high permeability, resulting in poor bonding quality between the cement sheath, casing, and formation, and easily causing annulus channeling accidents in oil and gas wells. Oil well cement has poor high temperature resistance, and has congenital defects for cementing construction in heavy oil reservoirs and deep oil and gas reservoirs. Defe...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/467
CPCC04B28/006Y02P40/10C04B14/106C04B38/02
Inventor 姚晓诸华军华苏东张亮朱华彭小明
Owner 江苏洋河新城新材料有限责任公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com