новости
новости
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How to Perform Well Cementing
Well cementing is a critical operation in oil and gas drilling, directly impacting the stability and long-term safety of an oil or gas well. This process is vital to the integrity of the wellbore and its ability to produce hydrocarbons efficiently and safely over time.
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The Important Application of Fluid Loss Additives in Oil Field Extraction
Fluid loss additives play a crucial role in oil field extraction, serving as key components that directly influence not only the efficiency and cost-effectiveness of oil production but also environmental protection efforts.
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Fluid Loss Additives for Seawater Cement Slurry Systems: A Comprehensive Overview of CG117
The CG117 series of fluid loss additives, particularly CG117S and CG117L, have emerged as innovative solutions designed to enhance the performance of seawater cement slurries, ensuring optimal fluidity, pumpability, and stability under diverse conditions.
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7.8 Horizontal Well Cementing Slurry System
The enhance of the well drilling and well logging technology accelerate the success rate of horizontal well and decrease the drilling cost. And the success of the horizontal well drilling, has make the oil and gas productive of single well three to five times larger than vertical wells, and sometimes even 10-20 times.
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7.7 Salt Resistant Cement Slurry
The research about the salt resistant cement slurry additive at home and abroad mainly focuses on the fluid loss additive. This is because the properties and dissolution of polymer in the general fluid loss additive will have great change in the salt water.
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7.6 Anti-fluid Channeling Cement Slurry System
The use temperature range of these additives is very wide. they can be used together with a variety of the additive materials and makes a variety of different density slurry, still can be used together with expansion agent and foaming agent, that has better prevent channeling effect.
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7.5 Short Thickening Time Cement Slurry System
The main character of short thickening time cement slurry has short transition time. This cement slurry can transform quickly from the flow state to the gel state. That can improve the cementing quality efficiently.
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7.4 High Temperature Deep Well Cementing Slurry System
Deep and super deep well cementing usually need to consider the density of the slurry, the fluid loss, stability and thickening time etc, so deep well cementing job requires not only the corresponding machine but also take the corresponding technical measures.
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7.3 High Density Cement Slurry System
In the oil gas cementing, high porosity pressure, unstable well wall and the plastic following formation are all need to be controlled with the help of high hydrostatic pressure. So that there is a high requirement to the slurry density.
