What Exactly Is FC-632S Fluid Loss Control Additives

FC-632S Fluid loss control additives are specialized water-based drilling fluid agents to reduce filtrate penetration and stabilize wellbore pressure, developed independently by Jiuyu Chemical R&D team with 17 years of oilfield chemical production experience. In practical 2026 on-site tests, this product avoids common degradation issues of starch-based additives under high temperature and high salinity conditions.

Core Raw Material Composition

The finished FC-632S product adopts modified polyacrylamide grafted with high-temperature resistant sulfonated groups, no toxic heavy metal components, fully meets EU REACH and US EPA oilfield chemical discharge standards, 2026 third-party test reports confirm it has zero biotoxicity for formation aquatic organisms.

Basic Functional Mechanism

After being added into water-based mud, FC-632S molecules will quickly adsorb on clay particle surfaces to form dense, low-permeability filter cake on wellbore wall, which blocks the seepage channel of free water in mud into underground formations, avoiding formation damage and wellbore collapse risks.

Standard Operation Steps for Applying FC-632S Fluid Loss Control Additives

Jiuyu Chemical on-site service teams have summarized mature operation flow from 78 drilling project deployments in 2025-2026, which can help teams achieve expected performance of FC-632S in the shortest time:

1. Conduct pre-compatibility test of 500ml on-site mud sample with 0.5% FC-632S at target operation temperature before formal mixing, confirm no flocculation occurs
2. Add the weighed FC-632S powder slowly into the mud mixing tank under 300rpm stirring speed, avoid one-time dumping to prevent caking
3. Maintain the pH value of the whole mud system within 8.5 to 10.0 after adding, which can maximize the activity of FC-632S functional groups
4. Conduct API fluid loss test after 20 minutes of high-speed stirring and 15 minutes of high-temperature curing, adjust the dosage appropriately according to measured data

2026 Verified Performance Data of FC-632S vs Conventional Products

From actual comparison tests completed by Jiuyu Chemical laboratory in March 2026, FC-632S shows obvious performance advantages than 3 mainstream conventional fluid loss control additives sold on the global market, all test parameters are listed in the table below:

Industry consensus from 2026 International Association of Drilling Contractors (IADC) annual report states that high-performance fluid loss control additives can reduce total drilling non-productive time by 22% for deep high-temperature wells.

Main Typical Application Scenarios of FC-632S

After being launched to the global market in 2024, FC-632S fluid loss control additives have been successfully applied in more than 230 drilling projects across 17 countries, covering the following mainstream operation scenarios:

Deep & Ultra-Deep Well Drilling Operations

In practical 2026 projects in Tarim Basin, China, FC-632S maintained stable fluid loss control performance at 172℃ bottom hole temperature, no thermal degradation occurred after 12 days of continuous circulation, which reduced mud maintenance cost by 31% compared with previous additives used.

Salt-Gypsum Complex Formation Drilling

For drilling through thick salt-gypsum formations that are easy to dissolve and collapse, FC-632S can work normally in full saturation brine mud system, no viscosity increment issue occurs, effectively avoiding wellbore shrinkage or enlargement risks caused by excessive fluid loss.

Unconventional Shale Gas Horizontal Drilling

For long horizontal section shale gas drilling, FC-632S helps form ultra-thin and tough filter cake, which reduces formation permeability damage rate below 7%, effectively protecting the production capacity of shale reservoirs.

Notices for Long-Term Storage of FC-632S Fluid Loss Control Additives

Jiuyu Chemical quality management team provides clear storage guidance based on 5 years of finished product tracking data, which can ensure users get 2-year guaranteed product performance after receiving goods:

Qualified Storage Environment Requirement

FC-632S powder products should be stored in dry, ventilated warehouse, avoid direct rain exposure, ambient temperature should be controlled between -10℃ and 45℃, long-term exposure to sunlight should be avoided to prevent molecular activity decline.

Limitations to be Noticed

It should be noted that FC-632S is designed for water-based drilling fluid systems, it cannot reach expected performance when added into oil-based or synthetic-based mud systems, users are suggested to contact Jiuyu technical team for customized formula before use.

This article was generated by AI and is for reference only.