Q. Oil is produced at a constant rate from a well in a bounded reservoir. The variation of the bottom-hole pressure with time is shown in the given Table. The magnitude of the slope of the pressure vs time curve that you would use to find the drainage area is_____-psi/day (round off to 1 decimal […]

Q. Typical parameters obtained in the pyrolysis experiment of the source rock materials are shown in the Figure. Which one of the following is NOT true about pyrolysis in source rock analysis? A. Peak S1 represents volatilization of existing hydrocarbons. B. Peak S2 represents breakdown of kerogen and generation of hydrocarbons. C. Peak S3 represents

Q. A box contains 2 red and 3 black balls. Three balls are randomly chosen from the box and are placed in a bag. Then the probability that there are 1 red and 2 black balls in the bag is      . Ans: 0.59-0.61 Sol: The required probability is

Q. The values of a function 𝑓(𝑥) over the interval [0,4] are given in the table below: 𝑥 0 1 2 3 4 𝑓(𝑥) 1 0.5 0.2 0.1 0.06 Ans: 1.32-1.34

Q. In an oil well, the pressure at the gas oil contact (GOC) at a depth of 2000 m is 205 bar (gauge), as shown in the figure. The static oil pressure gradient is 0.08 bar/m in the pay zone. If a constant hydrostatic pressure gradient of 0.1 bar/m prevails throughout the subsurface, then the

Q. A pressure build-up test was conducted in a well after 1000 days of producing oil at a constant rate of 0.01 reservoir-m3/s. The two shut-in bottom-hole pressure readings taken at 0.5 day and 1 day after shut-in are 150 × 105 Pa and 151 × 105 Pa, respectively. These pressure points correspond to the

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 based on volume of shale (Vsh) Ans: Reservoir unit delineation