HPHT Drilling Fluid Additives| Organophilic clay

HPHT Drilling Fluid Additives| Organophilic clay

ย  ย  ย  ย  Our top recommended product grades are CP-31, CP-250A and CP-EZ. All these organophilic bentonite grades feature stable thixotropy, favorable rheological properties and reliable suspension performance continuously under HPHT downhole drilling surroundings.
ย  ย  Serving as high-efficiency viscosifiers for drilling fluids, they deliver remarkable performance on fluid loss control, with a regular working temperature ranging from 150โ„ƒ to 230โ„ƒ.

ย HPHT Drilling Fluid Additives| HPHT drilling fluid rheology

ย  ย  ย  For deep wells, ultra-deep wells and shale formations where ambient temperature commonly hits 150โ„ƒ to 260โ„ƒ alongside high pressure and salt-bearing formations, strict standards are required for organophilic bentonite, while conventional organophilic bentonite fails to fit such high-temperature service conditions.
ย  ย  ย  HPHT Organophilic Clay acts as an indispensable premium viscosifier for high-end oilfield drilling fluids used in ultra-deep well oil & gas exploration.
ย  ย  ย  After modification, organic cations insert into montmorillonite sheets to expand interlayer spacing; HPHT-grade organophilic bentonite boasts wider interlayer spacing, more complete organic coating, superior oil solubility and enhanced thermal stability, which greatly improves organoclay HPHT performance and optimizes HPHT drilling fluid rheology.

ย HPHT Drilling Fluid Additives| HPHT Organophilic Clay

ย  ย  ย  HPHT Organophilic Clay helps form intact oil-based filter cakes on borehole walls to cut down HTHP fluid loss. It realizes effective viscosity increment and stable suspension capacity under high temperature to avoid barite settling.
Conventional organophilic bentonite is applied in shallow well oil-based drilling fluids below 130โ„ƒ, and mid-temperature organophilic bentonite works within 130โ„ƒ~180โ„ƒ. Our CP-31, CP-EZ and CP-250A are applicable to ultra-deep well and shale oil drilling with working temperatures from 180โ„ƒ up to 230โ„ƒ.
HPHT Organophilic Clayย  CP-31 is a self-activating organophilic clay viscosifier developed for oil-based drilling fluid applications where the absence of external chemical activator is required or preferred.

Technical Properties |ย HPHT Drilling Fluid Additives

Parameter Specification Test Method
Chemical composition Organically modified bentonite clay โ€”
Appearance Off-white to tan free-flowing powder Visual
Moisture content โ‰ค 4.0% 105ยฐC, 2 hours
Particle size โ‰ฅ 95% passing 76 ฮผm (200 mesh) Sieve analysis
Activation requirement Self-activating โ€” no external activator needed โ€”

Performance Advantages | HPHT Drilling Fluid Additives

  • Rapid yield developmentย โ€” reaches target yield point faster than activated conventional grades; reduces wait time during mud mixing
  • High gelling strengthย โ€” effective yield point and gel structure at standard treat rates (5โ€“15 kg/mยณ)
  • High slurrying efficiencyย โ€” disperses uniformly in base oil under standard rig-site mixing conditions
  • High thermal stabilityย โ€” maintains rheological performance at elevated bottom-hole temperatures
  • Eliminates external chemical activatorย โ€” simplifies mud mixing procedure; reduces chemical inventory; eliminates activator-related handling and VOC issues
  • Easy dispersingย โ€” effective in low-shear mixing equipment; suitable for jet-hopper addition
  • Good low-temperature incorporationย โ€” develops gel at sub-zero and cold-temperature conditions; valuable for Arctic and cold-climate operations

Q: Which HPHT Organophilic Clay grades does your company recommend for high temperature drilling? (HPHT Drilling Fluid Additives)

A: We recommend CP-31, CP-250A and CP-EZ. These three organophilic bentonite maintain stable thixotropy, rheology and suspension properties under HPHT drilling environments, with excellent fluid loss reduction capacity and applicable working temperature from 150โ„ƒ to 230โ„ƒ, effectively improving organoclay HPHT performance and HPHT drilling fluid rheology.

FAQ2 | HPHT Drilling Fluid Additives

Q: Why canโ€™t conventional organophilic clay work for ultra-deep & shale wells with high temperature and salt formations?

A: Traditional organophilic bentonite only suits shallow drilling below 130โ„ƒ, medium-temperature clay works at 130~180โ„ƒ. Deep and ultra-deep shale wells often reach 150โ€“260โ„ƒ with high pressure and salt-bearing strata beyond conventional clayโ€™s tolerance, while our CP series HPHT Organophilic Clay fits 180~230โ„ƒ ultra-deep shale oil drilling.

Q: What core functions does HPHT Organophilic Clay provide in HPHT oil-based drilling fluids?

A: Modified HPHT Organophilic Clay has larger interlayer spacing, complete organic coating, better oil solubility and thermal stability. It forms tight oil-based filter cakes on well walls to reduce HPHT fluid loss, increases viscosity and keeps good suspension to prevent barite settlement, optimizing overall HPHT drilling fluid rheology.