A Flashcards
(30 cards)
A relatively impermeable rock, commonly shale, anhydrite or salt, that forms a barrier or seal above and around reservoir rock so that fluids cannot migrate beyond the reservoir is called?
Cap Rock
What are the 2 most common reservoir rocks?
Sandstone and Carbonates
The proccess in which hydrocarbons move from one porous and permeable rock to another is called?
Migration
Siliceous environments, named for the silica-rich shells deposited in them. Where does this environment occur?
deep-sea
Sedimentary layers (strata) and lava flows were originally deposited as relatively horizontal sheets. This principle is known as Principle of?
Original Horizontality
Any feature that cuts across a rock or body of sediment must be younger than the rock or sediment it cuts across. This principle is known as?
Cross-Cutting
Dense, viscous mixtures of sediment and water in which the volume and mass of sediment exceeds that of water known as?
Debris
Gravity driven turbid mixtures of sediment temporarily suspended in water are called?
Turbidity Currents
In which of the following sedimentary environments would you least expect to find gravel?
Deep Marine
When the particles move in a series of jumps, periodically leaving the bed surface and carried short distances within the body of the fluid before returning to the bed again is called?
Saltation
The tendency for variations in current velocity to segregate sediments on the basis of particle size is called?
Sorting
What is the common rock-forming mineral which is known as dolomite?
CaMg(CaCO3)2
The processes responsible for changing sediments into sedimentary rock are compaction and?
Cementation
Proses di mana terjadi presipitasi kimia pada pembentukan kristal baru, terbentuk didalam pori-pori sedimen atau batuan yang mengikat satu butir dengan butir lainnya disebut?
Sementasi
Apakah yang dimaksud dengan aquifer?
Bagian reservoir minyak yang mengandung air
Minyak yang terbentuk dari hasil penyulingan destruktif batu bara disebut?
Coal oil
Suatu kejadian geology dimana permukaan laut naik relatif terhadap tanah dan garis pantai bergerak menuju tempat yang lebih tinggi yang disebabkan karena tenggelamnya tanah atau adanya cekungan tanah yang diisi air laut disebut?
Transgression
What kind mineral that will be form after antracite ?
Diamond
Mention one of type of subduction that happen in Indonesia ?
Oblique Subduction to Sumatera
What is the unit of permeability?
Darcy / MilliDarcy
Movement of the shoreline seawards as a result of sedimentation occuring at the coast is called?
Regression
What is the principal compound in limestone?
CaCO3
- What are the two types of microfossils which have shells made of CaCO3 (Calcium Carbonate)?
Foraminifera
Pergeseran atau penurunan mendadak dari suatu bagian lapisan tanah dari posisi asalnya disebut?
Fault/sesar
