Drilling water based plugging agent and using method thereof

Abstract

The invention discloses a drilling water based plugging agent and a using method thereof. The plugging agent is prepared by using curing materials, filling materials, bridging materials and suspensionmaterials in ratio of (17 to 25) to ( 7 to 15) to ( 17 to 27) to (30 to 37), filtration time is less than 15s, a filter cake can be formed instantaneously, the loss of plugging materials and drillingfluid can be reduced, the plugging agent is an efficient plugging agent with high water loss, high strength and high acid solubility in one, and can be applied to any form of leakage, especially forpressure plugging and big leak in small cracks with best using effects after matching with clear water, mud systems, cement and the like according to proportion.

Description

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AI Technical Summary

Benefits of technology

This patented technology describes different ways for preparing plugs made from specific fillings called Diatasic Acid Earth Plus/Toraytonate MCF). These filled plugs have quick water losses due to their large size and are effective at blocking oil spills effectively without causing excessive damage on soil surfaces. They use these fillers mixed together create a strong gel structure during injection into well boreholes while maintaining good flow properties over long periods of time. By controlling this mixing process, they may produce filters containing both liquid phase and gas phases simultaneously.

Problems solved by technology

This patents describes conventional methods used to fix abnormalities caused by excessive losses of liquid when injecting into oil fields through flow channels called casings. These techniques involve adding expensive chemicals like polymers or fibers together to fill these holes before they start to release any liquors causing them to break loose. However, this approach has limitations due to factors including poor hydraulic properties, difficulty in controllably filling large spaces without leaving behind debris layers, slow response times, and insufficient holding power.

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