A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Elastic toughened cement paste system and preparation method thereof
The invention belongs to the technical field of cement paste for well cementation and relates to an elastic toughened cement paste system and a preparation method thereof. The elastic toughened cementpaste system are made of the following raw materials: 100 parts of cement; 4-15 parts of an elastic material; 2-10 parts of a toughening material; 0-40 parts of a high-temperature stabilizer; 0-5 parts of an expanding agent; 0-15 parts of an ultrafine material; 4-10 parts of a filtrate reducer; 0-4 parts of an early strength agent; 0-3 parts of a dispersing agent; and 0-2.5 parts of a retarder. Adry mixture is added into a wet mixture, so that the elastic toughened cement paste system can be obtained. Aiming at the well cementation difficulty of a long-sealing-section horizontal well, the elastic toughened cement paste system is researched and formed by preferably selecting domestic elastic materials, additives and admixtures, has the characteristics of low water loss, zero water separation, high strength and low elastic modulus, can meet the fracturing requirement of later exploitation of the horizontal well, guarantees well cementation quality, and is economical and practical.
本发明涉及固井用水泥浆技术领域，是一种弹性增韧水泥浆体系及其制备方法，该弹性增韧水泥浆体系，原料包括水泥100份、弹性材料4份至15份、增韧材料2份至10份、高温稳定剂0份至40份、膨胀剂0份至5份、超细材料0份至15份、降滤失剂4份至10份、早强剂0份至4份、分散剂0份至3份、缓凝剂0份至2.5份，将干混料加入湿混料中得到弹性增韧水泥浆体系。本发明针对长封固段水平井固井困难，通过优选国产弹性材料及外掺剂和外加剂，研究形成弹性增韧水泥浆体系，具有低失水、零析水、高强度、低弹性模量特性，能够满足水平井后期开采压裂要求，保证固井质量、经济实用。
Elastic toughened cement paste system and preparation method thereof
The invention belongs to the technical field of cement paste for well cementation and relates to an elastic toughened cement paste system and a preparation method thereof. The elastic toughened cementpaste system are made of the following raw materials: 100 parts of cement; 4-15 parts of an elastic material; 2-10 parts of a toughening material; 0-40 parts of a high-temperature stabilizer; 0-5 parts of an expanding agent; 0-15 parts of an ultrafine material; 4-10 parts of a filtrate reducer; 0-4 parts of an early strength agent; 0-3 parts of a dispersing agent; and 0-2.5 parts of a retarder. Adry mixture is added into a wet mixture, so that the elastic toughened cement paste system can be obtained. Aiming at the well cementation difficulty of a long-sealing-section horizontal well, the elastic toughened cement paste system is researched and formed by preferably selecting domestic elastic materials, additives and admixtures, has the characteristics of low water loss, zero water separation, high strength and low elastic modulus, can meet the fracturing requirement of later exploitation of the horizontal well, guarantees well cementation quality, and is economical and practical.
本发明涉及固井用水泥浆技术领域，是一种弹性增韧水泥浆体系及其制备方法，该弹性增韧水泥浆体系，原料包括水泥100份、弹性材料4份至15份、增韧材料2份至10份、高温稳定剂0份至40份、膨胀剂0份至5份、超细材料0份至15份、降滤失剂4份至10份、早强剂0份至4份、分散剂0份至3份、缓凝剂0份至2.5份，将干混料加入湿混料中得到弹性增韧水泥浆体系。本发明针对长封固段水平井固井困难，通过优选国产弹性材料及外掺剂和外加剂，研究形成弹性增韧水泥浆体系，具有低失水、零析水、高强度、低弹性模量特性，能够满足水平井后期开采压裂要求，保证固井质量、经济实用。
Elastic toughened cement paste system and preparation method thereof
弹性增韧水泥浆体系及其制备方法
YANG JIXIANG (author) / SU HONGSHENG (author) / XU MIAO (author) / WEN PEIYUAN (author) / GU LONGHUI (author) / LIU XU (author) / LIU DEJIE (author)
2020-08-25
Patent
Electronic Resource
Chinese
| European Patent Office | 2021
Elastic and tough cement paste and preparation method thereof
| European Patent Office | 2023
| European Patent Office | 2021