Workplace
In drilling, what is the reference point on a gun assembly or perforating string for correlating depth called?
Gun zero
What is the name of SPE’s HSE & Sustainability webzine?
HSENow
Roughly what percentage of wells are drilled with water-based fluid?
80%
In petroleum fluids, which type of bond is most relevant—covalent or ionic?
Covalent
In ship class rules and regulations, what does IMO stand for?
International Maritime Organization
What term describes the near-wellbore zone where injected fluids like acids restore permeability?
Critical Matrix
What discovery did Neptune Energy make offshore Norway in July 2020?
Dugong
How many secondary kick indicators exist?
4
What are the three subgroups of hydrocarbons?
Paraffins/alkanes, naphthenes/cycloalkanes, aromatic compounds
In production, what does UGS stand for?
Underground Gas Storage
Which Managed Pressure Drilling technique is widely applied in fractured and carbonate reservoirs with total losses?
Pressurized Mud Cap Drilling (PMCD)
What was the name of Equinor (Norwegian National Oil Company) before 2018?
Statoil
Which perforating phasing is typically used in smaller OD guns or in very large casing?
0°
Which conservative equation helps petroleum engineers calculate saturation front velocity in a linear reservoir?
Buckley Leverett Equation
In completion operations, what does AICD stand for?
Autonomous Inflow Control Device
Which semisubmersible unit set a 2003 Malaysia record with surface BOP work at 6,152 ft self-contained spread mooring depth?
Ocean Baroness
Who invented the roller-cone bit?
Howard Hughes
Desilters are part of mud solids control. They typically remove particles above what size (in microns)?
20 microns
What statistical method updates distributions using prior geological data and posterior calculation from exact stochastic models?
Bayesian method
In a sucker rod pump designation C-228D-200-74, what does the letter “D” indicate?
Double reduction gear box
Gas blowby occurs when free gas escapes with liquids. Name one of three main causes.
Low liquid level, vortexing, or level control failure
With which company did Wintershall merge in 2019?
Deutsche Erdoel AG (DEA)
What is the normal valence angle of carbon?
109.5 degrees
The Kimmeridge clay (North Sea) and Tannezuft shale (Algeria) are examples of which kerogen type?
Type II
In fuel cells, what does LT-PEMFC stand for?
Low Temperature Proton Exchange Membrane Fuel Cell