Ds-207 High-Temperature Carbonate Acidizing Retarder Extends Reaction Time by 3X for Deep Wells Low Dosage

• Customization: Available
• CAS No.: N/a
• EINECS: N/a
• Model NO.: DS-207
• Appearance: Liquid
• Usage: Mud Chemicals
• Color: White
• Model No.: Film-Forming Agent
• Grade: Industrial Grade
• Content: Standard
• Use Scene: Oilfield Drilling Industry
• Odour: Insipid
• HS: N/a
• Transport Package: 25kg/Bag
• Specification: 25KG/1T
• Trademark: Sanherunjing
• Origin: China
• Production Capacity: 60000pieces/Year
• Package Gross Weight: 25.000kg

Product Description

DS-207 High-Temperature Carbonate Acidizing Retarder Extends Reaction Time by 3x for Deep Wells  Low Dosage

Product Description‌

‌

DS-207 Acidizing Retarder is a specialized, colorless to milky white liquid additive engineered for precise control of acid-rock reactions in carbonate reservoirs. Designed for oil and water well acidizing operations, it significantly extends the reaction time of hydrochloric and organic acid systems—by a minimum of 3 times—enabling deeper penetration and more uniform etching of carbonate formations. This enhances stimulation efficiency in wells exceeding 3000 meters depth, where rapid acid consumption limits treatment effectiveness.

Compatibility‌ Fully compatible with HCl, formic acid, acetic acid, and blended acid systems

Functions and Characteristics

Characteristics:

Key Advantages‌

 

Deep Acidification Capability‌: Slows acid reactivity to allow penetration beyond 100 meters into the formation, maximizing contact with low-permeability zones.

Thermal Resilience‌: Maintains performance in high-temperature environments (up to 120°C), ideal for deep and ultra-deep wells.

Low-Dosage Efficiency‌: Only 5% concentration required—reducing chemical costs and handling volume without compromising efficacy.

Non-Corrosive & Safe‌: Formulated to be non-corrosive to steel and compatible with standard downhole tools and elastomers.

Operational Simplicity‌: Directly metered into acid blends; no pre-dilution or complex mixing procedures needed.

 

Application Scope‌

 

Carbonate reservoirs (limestone, dolomite) in onshore and offshore oilfields

Water well rehabilitation and production enhancement

High-temperature formations (>100°C) and deep wells (>3000m)

Low-solids, non-dispersive acid systems requiring stable rheology

 

Usage Instructions‌

 

Dosage‌: Add 5% by volume of DS-207 directly into the acid solution prior to pumping.

Mixing‌: Agitate thoroughly to ensure homogenous dispersion.

Pumping‌: Inject using standard acidizing equipment; no special pressure or rate requirements.

Safety‌:

Wear chemical-resistant gloves, goggles, and protective clothing during handling.

Avoid skin or eye contact; rinse immediately with water if exposure occurs.

Store in sealed 200 kg HDPE drums away from direct sunlight, moisture, and ignition sources.

 

Packaging‌

 

Container‌: 200 kg net weight high-density polyethylene (HDPE) plastic drums

Labeling‌: Clear hazard symbols, product ID, batch number, and safety data sheet (SDS) reference

Storage‌: Keep in cool, dry, ventilated area; shelf life >24 months under proper conditions

Specification

Parameter‌	Specification‌
Appearance	Colorless or milky white liquid
Density (20℃)‌	1.0–1.05 g/cm³
pH Value‌	6–8
Thermal Stability‌	Up to 120°C
Recommended Dosage‌	5% by volume in acid solution
Reaction Time Extension‌	≥3× baseline HCl reaction rate

Lost Circulation Materials	SDL-2	High Fluid Loss Lost Circulation Material
	SDL-1	Film-Forming Lost Circulation Material
	GPC	Anti-Caving Lost Circulation Material While Drilling
	CBM	Composite Lost Circulation Material
	-	Single Plugging Lost Circulation Material
	SFD-1	Plugging Agent
Lubricants	SLUB	Extreme Pressure Lubricant
	SLUB-1	Solid Lubricant
	SRH-2	Solid Lubricant for Drilling Fluid
	JT-2	Environmentally Friendly Oil-Based Lubricant
Defoamers	DF-1	Silicone Defoamer
	DF-4	High-Efficiency Defoamer TypeⅡ
Weighting Materials	Ultrafine Calcium Carbonate	Ultrafine Calcium Carbonate
	Barite Powder	Barite Powder
Inorganic Salts	Soda Ash	Soda Ash
	NaOH
	-	Sodium Bicarbonate
	KCl	Potassium Chloride
Composite Materials	LBM	Fresh Water System Composite Agent
	SMBM	Salt Water System Composite Agent
Bentonite	-	Sodium Bentonite
Others	HTBH	High-Temperature Protective Agent