D Flashcards
Mention 4 methods of well kick & pressure control!
Driller, Batch, Concurrent, and Volumetric Methods
Mention at least two methods in CO2 injection mechanism!
continuous injection, slug CO2 + water
Mention 3 methods to test gas deliverablity!
Back pressure test, isochronal test, and modified isochronal test.
Mentioned 4 procedures of implematation in hydraulic fracturing stimulation ?
Injectiviy Test/Breakdown test, Step rate test, minifrac, mainfrac.
Mention three additives which used as the extender!
Bentonite, Pozzolan, Perlite,
What is the terminology of additives for increasing the cement slurry volume?
extender
The instrument consists of rubber ring that is mounted on short pipe used to separate the hole in above and below parts is __________.
packer
Field calibration could be done by using this two substance, mention it
Magnesium and Alumunium
Mention three types of decline curve!
Exponential, hyperbolic, harmonic
Mentioned flow patterns in the beggs & brill method ?
Segregated, transition, intermittent, distributed
What is the terminology for the name of grain size scale classification of sedimentary clastic rocks?
Wentworth sedimentary grains classification
Based on ionic characteristic N-ALKYL BETAINE is surfactant class?
amphoterik
Mention two types of gas driving mechanisms!
Gas cap drive and solution gas drive
Measuring of the concentration of the excess negative charges in the clay molecules is called?
CEC (cation exchange capacity)
What liquid is used to measure capillary pressure?
Mercury
Mention 3 important factors affecting on designing ESP!
PI of the well, Casing & Tubing Size, and Static Liquid Level
What is the main function of Drill Collar?
placing neutral point
Mention 3 types of carbonate rocks based on Dunham’s classification!
Mudstone, wackestone, packstone, grainstone, boundstone, and crystalline carbonate
- A rock that containing oil or gas will have a …… resistivty than the same rock saturated with salt water.
higher.
What is the worst drive mechanism for oil reservoir?
Solution gas drive
Mention 3 main factors affecting on Inflow Performance Relationship (IPR)!
GOR, skin, water-cut, and effective permeability
Mention 4 factors affecting on casing design!
Burst Load, Collapse Load, Tensional Load, and Biaxial Load
What are the two most commen petroleum reservoir rocks?
Sandstones and carbonates(limestones and dolomites)
The value of which quite high resistivity, the anti-correlation between density and resistivity logs, and the separation between log density - neutron indicates considerable as?
hydrocarbon bearing zone
