Wande Limestone Powder for Drilling Fluids

• Customization: Available
• Appearance: Powder
• Usage: Oil Drilling Auxiliary Agent, Drilling Fluid
• Model NO.: Mud materials
• Color: White
• Attribute: Easy to Disperse in Water
• Odour: Insipid
• Grade: Industrial Grade
• Use Scene: Drilling Industrial Use
• Norm: High Quality
• Payment Method: T/T/LC
• Package: Loan/Wood
• Mode of Transportation: by Sea UPS DHL FedEx TNT
• After-Sales Service: Online
• Transport Package: Bag
• Specification: 25KG or 1MT
• Trademark: Wan De
• Origin: Shanxi
• HS Code: 3912310000
• Production Capacity: 30000ton Per Year
• Package Size: 110.00cm * 110.00cm * 110.00cm
• Package Gross Weight: 1000.000kg
• Lead Time: 3 days (1 - 1000 kg) ; 7 days (1001 - 10000 kg) ; 15 days (10001 - 100000 kg) ; To be negotiated ( > 100000 kg)

Product Description

Limestone powder is a finished product obtained by crushing, grading, and separating white stone using Raymond mills or other high-pressure mills. This product is a high-quality additive commonly used in drilling fluids, with strong seepage prevention and plugging effects. It is acid-soluble and harmless to reservoirs, primarily used to increase drilling fluid density, control formation pressure, prevent collapse and blowout, and is suitable for various drilling fluid systems.

Drilling fluid

Drilling Fluid Additives

Mud Materials

Specification

Technical Specifications

SY/T 5061-2020,Q/SHCG 90-2016

Item	Specification
Appearance	White or light gray free-flowing powder
Moisture loss on drying, %	≤0.20
Density, g/cm³	≥2.70
Calcium carbonate content, %	≥90.0
Water-soluble content, %	≤0.10
Acid-insoluble content, %	≤5.0
Soluble calcium and magnesium content  (calculated as calcium), mg/kg	≤250.0
Residue on 0.061mm sieve, %	≤3.0
Content of particles smaller than 6µm, %	≤39.0

Usage Method and Recommended Dosage

Directly add this product into various water-based drilling fluids to prepare drilling and completion fluids with densities less than 1.68 g/cm³.

Advantages of using drilling additives:

1. Wellbore Stability and Pressure Control (The Most Critical Advantage)
This is the primary reason drilling fluids exist. Without them, most wells would be impossible to drill safely.
Prevents Well Collapse: The fluid column exerts hydrostatic pressure on the walls of the wellbore, counteracting the natural pressures of the formation rock and preventing it from collapsing into the well.
Controls Formation Pressure: Additives like barite (a heavy mineral) are used to increase the density (weight) of the fluid.              This heavy fluid column creates enough pressure to prevent high-pressure oil, gas, or water zones from unexpectedly flowing into the wellbore, which can cause a dangerous blowout.

2. Efficient Removal of Drill Cuttings
Cleans the Hole: As the drill bit grinds rock into cuttings, the circulating drilling fluid carries these solid particles up the annular space between the drill pipe and the wellbore to the surface.
Prevents Accumulation:Efficient removal prevents cuttings from accumulating around the drill bit and drill string, which can cause the pipe to get stuck (a "packed-off" hole) and slow drilling progress.

3.  Cooling and Lubrication
Cools the Drill Bit:The friction of drilling generates immense heat.              The circulating fluid absorbs this heat, cooling and protecting the expensive drill bit and downhole tools from premature failure.
Reduces Friction:Lubricating additives reduce torque and drag between the drill string and the wellbore.              This allows for drilling longer, more complex wells (especially horizontal ones), reduces the risk of getting stuck, and extends the life of the equipment.

4.  Formation of a Filter Cake
Protects Permeable Formations: Special additives form a thin, low-permeability filter cake on the walls of the wellbore when it passes through porous rock. 
Minimizes Fluid Loss: Prevents the liquid part of the drilling fluid from invading and damaging the valuable reservoir formation (which could reduce its ability to produce oil/gas later).
Strengthens the Wellbore:Acts as a lining, further stabilizing the wellbore.

5.  Source of Geological Formation Evaluation: The cutting brought to the surface by the fluid are sampled and analyzed by geologists and mud loggers.    This provides critical real-time information about the rock types, hydrocarbon shows, and other geological features being drilled, helping to guide the drilling operation and evaluate the economic potential of the reservoir.
6.  Supports and Enhances Drilling Performance
Optimized Rate of Penetration (ROP):The properties of the fluid (density, viscosity, lubricity) can be carefully managed to maximize how fast the drill bit can penetrate the rock, saving significant time and money.
Corrosion Inhibition: Chemical additives can be included to protect the metal drill pipe and downhole equipment from corrosive elements like hydrogen sulfide (HS) gas or saltwater, preventing costly failures.
7. Environmental and Safety Enhancements
Shale Inhibition:Certain additives (e.g., salts, polymers) prevent water-sensitive shale formations from absorbing water from the fluid and swelling.Swelling shale can squeeze the drill pipe and cause the wellbore to become unstable.
Waste Management:Modern additives are designed to be more environmentally friendly.  Systems are engineered to allow for efficient separation of cuttings from the fluid at the surface, enabling recycling of the fluid and proper disposal of the waste.

Company Profile

Payment method:T/T, VISA,  Master card, Western Union

Shaanxi Wande Petroleum Technology Co.,Ltd.

FAQ

Q: What's the lead time for orders?
A: Standard models ship in 3–8 days; 

Q: Are you a manufacturer??
A: Yes, actually we have our own factory in Xi 'an City, China.

Q: What is the minimum order quantity for this product?
A: One ton. The higher the quality, the more favorable the price.

Q: How do we ensure quality?
A: Before mass production, it is always a sample before production. It is always the final inspection before shipment.

Q: How can we contact you as soon as possible?
A: We can always use Made-in-China.com, WhatsApp and wechat. You can also contact us by email. You are welcome to send us any questions at any time. We will reply to you within 24 hours.