Q. Which one of the following options is NOT a part of the mudlogs prepared by the drill-site geologist? (A) Rate of Penetration (ROP) (B) Chromatograph showing presence of C1 to C5 concentration (C) Lithology from drill cutting and its interpretation (D) Reservoir unit delineation ...

Q. A single well encounters multiple clean sands of exactly the same thickness, porosity and permeability. Rw is the formation fluid resistivity and Rmf is the mud filtrate resistivity. P. Rmf > Rw                                    I.    No deflection Q. Rmf = ...

Q. An exploratory well encountered three reservoir formations S1 (perfectly cemented), S2 (poorly cemented) and S3 (fractured). The Formation Factor (F) is governed by the equation 𝐹 = 𝑎𝜙−𝑚, where ‘𝜙’ is the porosity and ‘m’ is the cementation factor. The constant ‘a’, linked to tortuosity is ...

Q. In which one of the following offshore platforms, the condition of the sea floor is a vital consideration? (A) Drill ship platforms (B) Tension leg platforms (C) Concrete gravity platforms (D) Floating, production, storage and offloading (FPSO) platforms Ans: Concrete gravity ...

Q. Which one of the following offshore platforms DOES NOT use buoyant columns or pontoons? (A) Tension leg platforms                 (B) Jack up platforms (C) Spar platforms                            (D) Semi-submersible platforms Ans: Jack up platforms

Q. H2S gas is                                                 (A) acidic.                                    (B) non-corrosive. (C) lighter than air.                      (D) non-flammable. Ans: acidic Sol: H2S gas, also known as hydrogen sulfide gas, is (A) acidic. ...

Q. Which one of the following flow regimes is more favorable for gas lift operation? (A) Bubbly flow      (B) Annular flow        (C) Churn flow         (D) Stratified flow Ans: Bubbly flow

Q. Which one of the following is the correct sequence of events for hydrocarbon generation in the subsurface? (A) Catagenesis → Metagenesis → Diagenesis (B) Catagenesis → Diagenesis → Metagenesis  (C) Diagenesis → Catagenesis → Metagenesis (D) Diagenesis → Metagenesis → Catagenesis ...

Q. Which one of the following rocks and reservoir fluids are arranged in the decreasing order of their electrical resistivity? Assume that rocks have equal porosity and are filled with brine. (A) Shale > Brine > Sandstone > Limestone > Gas (B) Gas > Shale > Sandstone > Limestone > Brine ...

Q. Which one of the following parameters is measured using routine core analysis (RCA)? (A) Porosity                                    (B) Relative permeability (C) Capillary pressure                     (D) Wettability Ans: Porosity