New research by Cabot Specialty Fluids shows that the density ceiling of cesium formate brine can be raised significantly when blended with cesium acetate brine.

Following strong interest from Spanish-speaking countries, such as Mexico, Cabot Specialty Fluids has launched a full version of this website in Spanish at www.salmuerasdeformiato.com.

Cesium formate brine has been extending the density range of low-solids oil-based completion fluids since 2001.

Cabot Specialty Fluids (CSF) is recognised for its sustainable business model at the 2010 UNIDO (United Nations Industrial Development Organization) chemical leasing awards.

BASF announces conclusions from a detailed investigation into the ecoefficiency of high-density completion brines. The two products put under the spotlight were formate brine and bromide brine.

New technologies help Statoil drill into a depleted reservoir in a challenging North Sea HPHT field.

The ever-expanding Formate Technical Manual (aka the Formate Bible) has grown once again. This time with a whole section dedicated to formate brines's compatibility with shales.

Latest figures show that after just seven years of full production, formate brines have helped deliver close to 90% of estimated recoverable reserves from Huldra and Tune, two North Sea HPHT gas condensate fields.

OMV has published two papers on the development and successful use of formate brines as reservoir drilling and completion fluids in the Miano and Sawan high-temperature gas fields located in the Sindh area of Pakistan.

Cesium formate brine delivers exceptional reservoir visualisation benefits by improving the acquisition and interpretation of the data generated by acoustic, resistivity and nuclear logging tools run on LWD and wire line.

In a concerted drive to increase its non-associated gas production, Saudi Aramco has engaged in a lengthy campaign of drilling slim-hole wells with long horizontal sections through Khuff and Pre-Khuff gas reservoirs.

DensiCalc is a newly updated density calculator from Cabot Specialty Fluids that converts surface density to equivalent brine density, calculates average density of wellbore fluid and the hydrostatic pressure generated for any given cesium/potassium brine.

Researchers at a leading research institution, the Woods Hole Oceanographic Institution in the U.S., have brought new insight to understanding formate brine stability under hydrothermal conditions.

After six years combating pressures of 14,000 psi and temperatures of 350°F (177°C) the production string was pulled from the High Island A-5 well #1 HPHT well in the Gulf of Mexico. Remarkably, the identification markings on the pipe were still intact.

Halide brines vs. formate brines. Safety is an important factor to consider in brine choice.

Three newly published papers further our insight into formate brines and how they are best used in the oilfield.

A DOE-funded research programme into deep drilling optimisation has revealed that low-solids drilling fluids based on cesium formate brine can improve rates of penetration (ROP) by 100% under high-pressure conditions.

“Logging while drilling (LWD) data using cesium formate-based fluids may lead to a more accurate net reservoir definition and better geo-models,” says Erik Sandtorv Pedersen, Petrophysicist at StatoilHydro.

New tool developed by Gaia Consulting of Finland uncovers hidden costs of well completion and workover brines.

With record-fast HPHT completion, exceptional well control and noteworthy productivity levels, StatoilHydro is setting new standards with Kvitebjørn, its North Sea gas/condensate field.

A question asked for the last 12 years has finally been answered. Why are the low levels of formation damage measured in HPHT gas wells after exposure to high-density formate brines sometimes not reproduced in laboratory coreflood tests?

TXM and Cabot Specialty Fluids enjoyed a ‘champagne moment’ after successfully suspending an extreme HPHT well located in southeast Hungary.

Trying to workover high-angle HPHT wells in conventional muds or brines is a no go. This was the conclusion made by TOTAL E&P UK when carrying out remedial work on their Elgin G3 well in the North Sea during the development of the world's largest offshore HPHT field.

Everything you wanted to know about formates is now collected together in this extensive technical manual. Existing research, new research, field experience and much more. Download your copy now!