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The Advanced REACH Tool is a mechanistic higher-tier model to estimate inhalation exposure to chemicals using a Bayesian approach. This paper provides a discussion of the key modifying factors that should be considered to extend the model to include welding fume exposure.

Proposed changes would modify EPA's August 2016 final rule, "Oil and Natural Gas Sector: Emission Standards for New, Reconstructed, and Modified Sources." The proposal has been submitted for publication to the Federal Register. Following that publication, the EPA will accept comments for 60 days.

With the arrival and development of rotary steerable systems in the late 1990s, the industry thought that drilling a perfectly smooth and controlled trajectory would not be an issue. Two decades later, we’re still talking about wellbore quality, especially with long and complex horizontal wells.

The use of organophilic clays as additives to provide proper rheological and filtration properties in nonaqueous drilling fluids (NADFs) has long been a topic of study. This paper introduced a modified rectorite designed for biodiesel-based drilling fluid (BBDF).

The reservoir section of a gas field offshore Sarawak, Malaysia, consists of two massive pinnacle carbonate structures with heterogeneous porosity and permeability and many vugs and faults.

Organophilic clays mixed in oil-based drilling fluids (OBDFs) do not exhibit the same viscosity or suspension characteristics as they do in water-based drilling fluids. A new mineral-oil-based drilling fluid (MOBDF) was created by replacing the conventional organophilic clay with a novel polymer.

It is no secret that drilling fluid is crucial in drilling operations. The main function of drilling fluids is to transport drill cuttings from the bottom of the hole up to the surface. Drill cuttings then will be separated on the surface before being recycled back for further drilling.

Earlier this year in Aberdeen many of the oil and gas industry’s innovation champions met to discuss the developments that are driving the digital transformations within operators and service providers alike.

The digital transformation of the oil and gas industry dominated discussion at the 2018 SPE Annual Technical Conference and Exhibition held in late September in Dallas.

The SPE Liquids-Rich Basin Conference in Midland, Texas, merged topics that have dominated recent industry discussions: technologies centered on big data, interwell communication, and Permian Basin production.