Technical How-To Page

How to Improve Suspension in Drilling Fluid

Suspension in oil-based and synthetic-based drilling fluid is improved by selecting a matching organoclay grade, activating it correctly, and dosing it to the current TDS. This page walks through fluid-system confirmation, grade selection, mixing and activation, and reading gel strength and low-shear viscosity results. Request current TDS, samples, or a grade recommendation before running a mix test.

Organoclay being mixed into oil-based drilling fluid to improve suspension
TopicSuspension ControlMethodGrade + Activation + DosageSampleAvailableDocumentsTDS & SDSLead Time7-10 Days
Practical steps for improving suspension in drilling fluid with organoclay.

Quick Technical Answer

In One Minute

This page helps buyers and formulators quickly:

Understand the Method

See the practical factors that improve suspension in oil-based and synthetic-based drilling fluid.

Follow the Steps

Move from fluid-system confirmation to grade selection, mixing, and testing.

Read the Results

Connect gel strength and low-shear viscosity readings to the organoclay role.

Troubleshoot Issues

Check common causes before changing grade or dosage.

Request Documents

Request TDS, SDS/MSDS, COA and samples before internal approval and purchase.

Definition

What Does Suspension Improvement Mean in Drilling Fluid?

Improving suspension means building enough gel strength and low-shear structure so weighting material and drilled cuttings stay suspended instead of settling. In oil-based and synthetic-based systems, organoclay is the organophilic clay additive most commonly used for this role, because it disperses across the continuous oil phase and develops a controllable structural network.

The response depends on the organoclay grade, base oil, mud weight, temperature, and mixing energy. Suspension targets should be validated through gel-strength and sag testing, and the final grade and loading confirmed against the current TDS before field use.

Oilfield organoclay powder prepared for drilling fluid suspension testing
Laboratory and production context for organoclay used in drilling fluid suspension control.

Step-By-Step Procedure

How to Improve Suspension Step by Step

Follow these steps in order. Final loading and mixing parameters should always be confirmed against the current TDS for the selected grade.

Step 1 Confirm the Fluid System and Solids Load

Record the base oil or synthetic fluid, mud weight, barite and cuttings loading, and target gel strength before selecting an additive.

Step 2 Select the Matching Organoclay Grade

Match an approved OD-series grade to the fluid system, for example an OBM viscosifier path for oil-based mud or a high-temperature path for HPHT wells, using the grade selection guide.

Step 3 Set the Activation and Mixing Sequence

Confirm the polar activator, addition sequence, and shear energy needed so the organoclay builds a suspension-supporting structure during mixing.

Step 4 Add and Disperse the Organoclay

Add the organoclay at the loading indicated by the current TDS, and disperse with sufficient shear and mixing time before taking initial readings.

Step 5 Measure Gel Strength and Low-Shear Readings

Run standard oilfield mud testing to record 10-second and 10-minute gel strength and low-shear-rate viscosity on a viscometer.

Step 6 Adjust and Confirm Against Target

Compare readings with the target suspension window, adjust loading or mixing energy if needed, retest, and confirm the final formulation with the current TDS and technical support before field use.

Diagram showing how organoclay grade, activation, and dosage combine to improve drilling fluid suspension
How grade selection, activation, and dosage combine to improve drilling fluid suspension.

How It Works

What Drives Suspension Improvement With Organoclay

These performance areas help procurement and technical teams decide whether to request TDS, plan a mix test, or ask for a grade recommendation.

Grade Match

Choosing the OD-series grade that fits the base oil and system builds predictable suspension structure.

Activation

Correct polar activator and addition sequence lets the organoclay disperse and build structure fully.

Dosage

Loading within the current TDS range keeps gel strength in the intended working window.

Mixing Energy

Sufficient shear during mixing supports even dispersion and consistent readings.

Temperature Behavior

Standard and high-temperature grade paths respond differently as downhole temperature rises.

Thixotropic Structure

Structure rebuild after shear helps solids stay suspended between circulation.

Reading Results

How to Evaluate Suspension Test Results

Run standard oilfield rheology testing and compare readings with the target window for the well design before finalizing the formulation.

Suspension parameterWhy it mattersOrganoclay role
Gel strength (10s / 10min)Static suspension and sag resistancePrimary structure organoclay develops
Low-shear-rate viscosity (LSRV)Solids carrying at low pump ratesLow-shear structure supported by organoclay
Yield point (YP)Cuttings transport and hole cleaningYield structure across the oil-continuous phase
Barite sag / static agingWeighting-material stability over timeStructure that reduces sag when validated in testing

Troubleshooting

Common Suspension Problems and Checks

Use this table to connect a common suspension or settling problem with the likely cause and the practical check to run before changing grade or dosage.

Suspension problemLikely causeBuyer check before changing
Barite sag in deviated wellsGrade not matched to base oil, mud weight, or angleCheck mud weight, angle, temperature, and gel readings before changing grade
Cuttings settling at connectionsInsufficient static gel strengthVerify grade fit and activation before changing loading
Slow solids drop-out on standbyStructure not rebuilding after shearReview mixing energy and addition sequence in testing
Low-shear viscosity too lowUnder-dosage or incomplete activationConfirm base oil compatibility and grade against current TDS
Suspension fades on hot wellsStandard grade used outside its temperature windowReview the high-temperature organoclay path and request current TDS

Product Direction

Recommended Grade Paths for Suspension Control

Only approved OD-series grade paths are shown. Final selection should be confirmed with current TDS, sample testing, and technical review.

Quality control laboratory running gel strength and sag tests for drilling fluid
Laboratory testing context for drilling fluid suspension evaluation.

Manufacturer Direct Supply

Manufacturer Advantages

HANGZHOU YONGYU CHEMICAL INDUSTRY CO., LTD. is presented in the approved project brief as a manufacturer established in 2005, with annual capacity of 25,000 tons per year. The team supports grade selection, export communication, document requests, sample evaluation, and quotation discussion for international oilfield chemical buyers.

Approved procurement facts include 25 kgs/bag packaging, MOQ of 1,000 kgs, and lead time of 7-10 working days after receiving deposit.

Established 2005
Annual Capacity 25,000 tons/year
Export Markets Americas, Russia, Vietnam, Malaysia, and other markets
Packaging 25 kgs/bag
MOQ 1,000 kgs
Lead Time 7-10 working days after deposit

Technical Documents

Documents, Samples, and Support

Use these document paths to support suspension review, safety review, procurement approval, and sample testing.

Buyer Questions

FAQ

What is the main way to improve suspension in a drilling fluid?

Suspension in oil-based and synthetic-based drilling fluid is mainly improved by selecting the right organoclay (organophilic clay) grade, activating it correctly with a polar activator, and dosing it according to the current TDS. This builds gel strength and low-shear structure that hold barite and cuttings suspended. Mixing energy, base oil type, mud weight, and temperature all affect how much structure the organoclay develops. Buyers should confirm the fluid system and target gel strength, then request a grade recommendation and TDS before running a mix test.

Which organoclay grade should I use to improve suspension?

It depends on the fluid system, base oil, mud weight, and temperature. For general oil-based mud suspension, buyers often start with the OBM viscosifier path around OD-20 or a drilling-grade path such as OD-05; high-temperature wells point toward OD-29, and dispersion-sensitive systems may review OD-28 or OD-E29. Share your base oil, mud weight, temperature, and target gel strength so the technical team can route you to a suitable OD-series grade, then confirm with the current TDS.

Why is barite or cuttings still settling after adding organoclay?

Common causes include a grade that does not match the base oil, insufficient or excessive shear during mixing, an incorrect addition sequence, dosage outside the TDS range, or a temperature and mud-weight profile outside the design window. Before changing dosage, review the mixing procedure, activation conditions, and the rest of the formulation. If settling continues, share your fluid details and gel-strength readings with the technical team so the review focuses on the actual variable.

How does temperature affect suspension with organoclay?

Higher downhole temperatures can reduce the structure an organoclay grade holds in a drilling fluid, which is why standard and high-temperature grades are positioned differently. For elevated or HPHT wells, review the high-temperature organoclay path and confirm the operating temperature window against the current TDS before finalizing grade selection and loading.

What documents should I request before adjusting suspension dosage?

Request the current TDS for technical and formulation review, the SDS/MSDS for safety, handling, and compliance review, and a COA where available when batch-level quality confirmation is required. Include your fluid system, base oil, mud weight, temperature, and target gel strength so the team can route the correct document and grade recommendation for your evaluation.

Can I get a sample to test suspension improvement?

Yes. Samples are available for buyer evaluation when the request includes enough technical context. Share your fluid system, base oil, mud weight, temperature, target gel strength, expected quantity, destination country, and required documents. The team can then confirm whether to start with TDS review, a mix test sample, quotation support, or a grade recommendation.

Technical Contact

Technical Contact Card

Bottom CTA

Need help improving drilling fluid suspension?

Send your fluid system, base oil, mud weight, temperature condition, target gel strength, quantity, and document requirements. The technical team can route you to the right OD-series grade path, TDS, sample, or quotation.