Drilling Fluids

Drilling Fluids Engineering & Programming

PetroZer Fluids Company offers wide range of drilling fluids engineering solutions to cover client‘s engineering and operational requirement in drilling activity. Our expert engineers provide the following value for your projects:

•          Drilling Fluids Engineering
•          Project Operational Management
•          Drilling Fluids Design and Programming
•          Final Well Report and Recap
•          Completion and work-over Fluids Design
•          Advance Technologies and Applications
•          Total Fluids Management
•          Project Benchmarking and Performance Evaluation

Our Engineering & Operation Department have oil industry experts, managers and engineers who work closely together to design proper drilling fluids systems based on geological information and nearby wells data. We offer engineering solutions to cover a wide range of operational requirement in different drilling geological environment as follow:

•          HPHT wells in Exploration and Development Projects 
•          High Pressure Geological layer with influx contamination 
•          Troublesome Shale Zones and associated problems 
•          Reservoir Protection and formation damage Reduction by using Non-Solids Drill-in-Fluids 
•          Environmentally Fluids in replacement of Oil Based Mud 
•          Complete and moderate losses in High Permeable or Fracture Zones 
•          Bit Balling and Clay Stickiness 
•          Environmentally Friendly Synthetic Based Mud for Hard Drilling 
•          ROP Enhancer and Performance improving 
•          Cost Effective solutions for workover and completion fluids

Mud Engineering & ​Operational Services

Operational Services are provided for both onshore and offshore projects by supporting drilling operations in a safe and cost-effective manner. Our experts and senior mud engineers are fully trained and familiar with the drilling operations to advise and provide on-site treatment by providing quick actions and solutions. Our main target in our operational services is to be proactive regarding the upcoming requirement and we believe this approach is key to optimize drilling operations. Shale formations in Iran can create difficult conditions that are challenging especially in HPHT wells. We therefore analyze geological properties in advance to understand what solutions are required before encountering problems to ensure minimal lost circulation and the maintain well stability. Our on-site operational services are fully equipped with laboratory units to monitor mud properties on-time and on a regular bases to provide complete mud check report for our clients. Daily Mud Reports (DMRs) are generated systematically and reported to our clients on a regular basis, moreover, meetings with our clients and operation team take place frequently to assess drilling conditions. Every reasonable effort is made to prevent NPTs (nonproductive time) as we understand the costs incurred for our clients and the loss of valuable time which is unrecoverable.

PetroZer Fluids Company offers wide range of drilling fluids Formulations and System for various type of application. We provide the optimum drilling fluids solutions to cover clients operational requirement during drilling shale problems zones, HPHT wells, reservoir protection and increasing ROP. We have designed our customized formulations for different drilling operational requirement by using high performance materials and additives. Our solutions cover a wide range of operational requirements within different geological environments:

  • Replacing OBM in Environmentally Restricted Area
  • Sticky Clays & Troublesome Shale Zones
  • High Pressure Salt Water Layers
  • HPHT Wells and Deep Reservoirs
  • Complete / Sever Loss Zones in High Permables & Fractured Layers
  • ROP Enhancement in Deviated and Horizontal Sections
  • Formation Damage Mitigation
  • Workover & Completion Fluids

Our drilling fluids systems are categorized to the followings items:

  • Conventional Water Based Mud 
  • High Performance Water Based Mud
  • Oil & Synthetic Based Mud
  • Hi-Tech Drilling Fluids
  • Lost Circulation Fluid Systems

Our Designed and Customized Drilling and Comple​tion Fluids have been described by their applcication in the following table:​


PetroZer Brand Name​​​
Fluid Type Description Applica​tion

Water Based Mud
SPUD-DRILL FLUID SYSTEM WBM SPUD-DRILL FLUID SYSTEM is a water based mud which is used in drilling top hole sections with large hole sizes to clean the hole and provide hole stability . • Providing hole cleaning by higher rheological profile
• Prevent sloughing of the surface hole;
• Provide a viscous sweep to clean gravel/sand from the borehole;
• Form Non-Permeable filter cake to prevent losses to the formation.
SWEEP-DRILL FLUID SYSTEM WBM SWEEP-DRILL FLUID SYSTEM is a water-based drilling fluid (freshwater/seawater) containing guar gum as a viscosifier, typically for top hole sweeps, hole cleaning and for riser less, continuous mixing operations. • Providing hole cleaning by higher rheological profile
• Prevent sloughing of the surface hole;
• Provide a viscous sweep to clean gravel/sand from the borehole;
• Form Non-Permeable filter cake to prevent losses to the formation.
SW-POLY-DRILL FLUID SYSTEM WBM SW-POLY-DRILL FLUID SYSTEM is a water based drilling fluid system which mixed by using sea water as a base fluid and biological resistant polymers to control rheological properties and fluid loss up to 250 degF. • To control salt formations
• To perform optimum flow properties
SS-POLY-DRILL FLUID SYSTEM WBM SS-POLY-DRILL FLUID SYSTEM is a water based drilling fluid system which mixed by using sodium chloride as weighting agent up to 1.2 S.G and salt resistant polymers to control rheological properties and fluid loss up to 250 degF. • Inhibit and encapsulate the reactive Shale found in this section
• To control salt formations
• To perform optimum flow properties
K-POLY-DRILL FLUID SYSTEM WBM K-POLY-DRILL FLUID SYSTEM is a water based drilling fluid system which mixed by using potassium chloride as shale inhibitor in conjunction with sodium chloride and salt resistant polymers to control rheological properties and fluid loss up to 250 degF. • Drilling Shale Layers  & Decrease bit balling
• Reduce pore pressure
HEAVY-DRILL FLUID SYSTEM WBM HEAVY-DRILL FLUID SYSTEM is a salt saturated water based mud to drill high pressure zones up to 2.3 S.G by using BARA-WATE and HEMA-WATE as weighting agent material with appropriate viscosifer and fluid loss control agents to keep the rheological properties and fluid loss in range. • To prevent the enlargement of the wellbore  while drilling salt sections
• To control pore pressure• To prevent the influx of saltwater to well
ULTRA-DRILL FLUID SYSTEM WBM ULTRA-DRILL FLUID SYSTEM is a salt saturated water based mud to drilling high pressure zones up to 2.65 S.G by using BARA-WATE and HEMA-WATE as weighting agent material with special rheological controller to keep the rheological properties and fluid loss constant during drilling high pressure zones. • To prevent the enlargement of the wellbore  while drilling salt sections
• To control pore pressure• To prevent the influx of saltwater to well
CARBO-DRILL FLUID SYSTEM WBM CARBO-DRILL FLUID SYSTEM is water based mud by using CARBO-WATE as acid soluble weighting and bridging agent to reduce formation damage during drilling reservoir sections. • Drilling reservoir formations
• Reducing formation damage
• Acid Soluble
• Pore Bridging

High Performance Water Based Mud
CLAY-BOND FLUID SYSTEM HPWBM CLAY-BOND FLUID SYSTEM is a high performance water based mud which contains high molecular polymers to prevent clay dispersion in the mud and changing rheological properties. This system reduces Bit Balling and improve ROP with stable hole condition in high reactive clays. • To inhibit and encapsulate the reactive shale

• To perform optimum flow properties

SILCO-DRILL FLUID SYSTEM HPWBM SILCO-DRILL FLUID SYSTEM is high performance water based mud which is formulated by using silicate derivatives to inhibit high reactive clays and shales. • High Inhibition
• Good Well Bore Stability
GLYCO-DRILL FLUID SYSTEM HPWBM GLYCO-DRILL FLUID SYSTEM is a high performance water based mud used as a replacement for OBM to overcome high reactivity of shale problems by using different types of glycols which are compatible with low to high formation temperatures. •Wellbore and cuttings stability

•Reduced dilution rate
• Provide temperature stabilization

•Minimizing bit balling
•Increasing ROP

•Reducing torque and drag

SHALE-DRILL FLUID SYSTEM HPWBM SHALE-DRILL FLUID SYSTEM is a high performance water based mud which is formulated by using asphalt additives to improve the stability of drilling fluids, stabilizes shale, inhibits dispersion of drilled solids, controls high temperature water loss in high reactive shales. •Wellbore and cuttings stability

•Reduced dilution rate
• Provide temperature stabilization

•Minimizing bit balling
•Increasing ROP

•Reducing torque and drag

ULTRA-INHIBIT FLUID SYSTEM HPWBM ULTRA-INHIBIT FLUID SYSTEM is a high performance water based mud system which is formulated by using high performance shale inhibitors for increasing the performance of shale and corrosion inhibition. •Wellbore and cuttings stability

•Reduced dilution rate
• Provide temperature stabilization

•Minimizing bit balling
•Increasing ROP

•Reducing torque and drag

LUB-DRILL FLUID SYSTEM HPWBM LUB-DRILL FLUID SYSTEM is a high performance water-based drilling fluid system which is formulated for drilling high deviated and horizontal section by using special high performance lubricants to reduce torque and drag and improving ROP during sliding. •Reduce of coefficient of friction
•Reducing torque and drag
•Reducing bit balling
•Reducing differential sticking

Oil & Synthetic Based Mud
OBM-DRILL FLUID SYSTEM OBM OBM-DRILL is an Oil Based Mud drilling fluids system which is formulated by using high performance emulsifiers and fluid loss control additives. • High Reactive Shales
• Torque & Drag Reduction
SYNTHO-DRILL FLUID SYSTEM SBM SYNTHO-DRILL FLUID SYSTEM is a Synthetic Based Drilling Fluids which is formulated by using special degradable based oil which is acceptable environmentally and special emulsifiers to keep the required electrical stability. • Inhibit the reactive
• Environmentally Restricted Area

Hi-Tech Drilling Fluids
ULTRA-WEIGHT DRILL FLUID SYSTEM HI-TECH ULTRA–WEIGHT is a heavy-weight water-based mud which is formulated by using an effective viscosifier to provide flexible, smooth rheological properties in high pressure formations with high calcium/salt water influxes • Prevent the influx of saltwater in high pressure formation
LOW-WEIGHT-DRILL FLUID SYSTEM HI-TECH LOW-WEIGHT FLUID SYSTEM is water based mud which is formulated by using special low density additives for the mud weight between 0.8 – 1.0 S.G for drilling low pressure and depleted zones. This system replace Oil Based Mud. • Reduce of mud density,
• Eliminate lost circulation,• Controlling formation damage
• No differential stuck pipe
APHRO-DRILL FLUID SYSTEM HI-TECH APHRO-DRILL FLUID SYSTEM is water based mud which is formulated based on micro bobble technology to reduce water based mud density between 0.3 – 0.7 S.G for drilling depleted reservoirs in carbonate and sandstone formation. • Reduce of mud density,
• Eliminate lost circulation,• Controlling formation damage
• No differential stuck pipe
HPHT-DRILL FLUID SYSTEM HI-TECH HPHT-DRILL is a high performance HPHT water based mud which is formulated by using special HPHT synthetic polymers and additives to reduce HPHT fluid loss of the system and provide maximum shale inhibition in HPHT wells, and Increasing ROP • Drilling HPHT wells
• Drilling most reactive shales
S-FORMA-DRILL FLUID SYSTEM HI-TECH S-FORMA-DRILL FLUID SYSTEM is a solids free high tech drilling fluids which is formulated by using organic salts to prevent formation damage and corrosion problem associated with the convectional water based mud up to 1.32 • Shale stability

• Temperature stability

P-FORMA-DRILL FLUID SYSTEM HI-TECH P-FORMA-DRILL FLUID SYSTEM is a solids free high tech drilling fluids which is formulated by using organic salts to inhibit inter layer clays and to prevent formation damage and corrosion problem associated with the convectional water based mud up to 1.57 S.G • Shale stability

• Temperature stability

CS-FORMA-DRILL FLUID SYSTEM HI-TECH CS-FORMA-DRILL FLUID SYSTEM is a solids free high tech drilling fluids which is formulated by using organic salts to inhibit inter layer clays and to prevent formation damage and corrosion problem associated with the conventional water based mud up to 2.3 S.G • Shale stability

• Temperature stability

CRYSTAL-DRILL IN FLUID SYSTEM HI-TECH CRYSTAL-DRILL-IN-FLUID SYSTEM is high technology water based mud which is formulated by using special crystallization process to bridge the depleted reservoirs and preventing formation damage and formation losses of fluid. The return permeability test has proven more than 90% recovery in comparison  other water based mud. • To drill depleted zones/reservoirs

• To bridge the reservoir and prevent formation damage


Lost Circulation Fluid System
WELL-PLUG LOST CIRCULATION FLUID SYSTEM LCM​ WELL PLUG is a combination of biological polymers and ground borate mineral • Extreme Lost circulation pill
• Pre-cement pad
• Loose formation consolidation