Wande Acid-Soluble Temporary Plugging Agent for Drill-in Fluids PF-Ezcar8 for Drilling Fluids

• Customization: Available
• Appearance: Powder
• Usage: Oil Drilling Auxiliary Agent, Drilling Fluid
• Model NO.: PF-EZCAR8
• 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) ; 5 days (1001 - 2000 kg) ; 7 days (2001 - 3000 kg) ; To be negotiated ( > 3000 kg)

Product Description

Acid-soluble temporary plugging agent for drill-in fluids is composed mainly of calcium carbonate. It offers excellent high-temperature and high-pressure resistance and strong acid solubility, suitable for controlling losses in high-temperature and high-pressure wells. This product is an acid-soluble plugging agent designed to resolve lost-circulation problems during drilling operations.

Specification

II. Implementation Standards 

Q/HSYF 469-2021

Item	Specification
Appearance	White powder
Moisture, %	≤3.0
Acid-insoluble matter, %	≤2.0
Calcium carbonate content, %	≥95.0
Particle size distribution range, µm	D10≤5.0
	15≤D50≤50
	D90≤74

Usage Method and Recommended Dosage

1. Before adding the acid-soluble temporary plugging agent, adjust the downhole acidic environment to ensure acid effectiveness. 
2. Dosage should be determined based on lost-circulation severity and well depth; avoid excessive or insufficient addition.

Certifications

Performance Characteristics

1.Inhibitsshaledispersion

2.Effectivelyreduces thehigh-temperaturefluid lossof drilling fluids
 
3.Exhibitsexcellentthickeningproperties
 

Application

1.  Primary Functions and Applications

PAM serves several key roles in water-based muds (WBM):
1.1.Viscosification and Rheology Control
Function:PAM is a highly efficient viscosifier.  Even at low concentrations (0.1% - 0.5% by weight), it significantly increases the viscosity of the drilling fluid.
Mechanism: The long polymer chains of PAM become hydrated in water, uncoil, and entangle with each other.       This creates a network that increases resistance to flow (viscosity) and enhances the fluid's ability to carry cuttings.
Benefit:Provides better hole cleaning, especially in low-flow-rate or large-diameter hole sections.       It helps maintain the necessary gel strength to suspend cuttings and weighting material when circulation is stopped.
1.2.Filtration Control (Fluid Loss Reduction)
Function: PAM is a superb fluid loss additive.
Mechanism:The polymer chains adsorb onto the surface of clay particles (like bentonite) and form a thin, low-permeability filter cake on the wellbore wall.   This cake is tough and flexible, effectively sealing porous formations and preventing the invasion of the liquid phase of the mud (filtrate) into the ormation.
Benefit:Reduces wellbore instability, prevents formation damage, and minimizes the risk of differential sticking.
1.3. Shale Inhibition and Wellbore Stabilization
Function: Acts as a shale inhibitor
Mechanism:Shale formations contain clay minerals (like montmorillonite) that hydrate and swell upon contact with water, leading to wellbore instability, sloughing, and stuck pipe.       PAM inhibits this through two mechanisms:
1.  Encapsulation:** The long polymer chains wrap around and encapsulate shale cuttings, forming a protective barrier that prevents water penetration.
2. Adsorption:The polymer adsorbs onto the surface of clay particles within the shale formation, effectively plugging micro-fractures and pores, thereby reducing water invasion.
Benefit:Maintains a stable wellbore, reduces bit balling, and leads to fewer wellbore problems and non-productive time (NPT).

1.4.  Flocculation and Cuttings Aggregation
Function:Acts as a **flocculant.
Mechanism:In certain conditions, partially hydrolyzed PAM can neutralize the negative charges on ultra-fine drilled solids, reducing electrostatic repulsion.   

FAQ

Q: Can these be worn with helmets/hard hats?
A: Yes - Low-profile 8mm thickness fits under most safety gear

Q: Is the microphone usable in windy conditions?
A: Wind noise reduction algorithm activates at >15km/h

Q: MOQ for custom colors?
A: 500pcs per colorway (Pantone matching available)

Q: How to clean after sweaty workouts?
A: Hand wash with mild detergent - 100+ wash cycles tested