What is down dip in oil and gas?
Located down the slope of a dipping plane or surface. In a dipping (not flat-lying) hydrocarbon reservoir that contains gas, oil, and water, gas-oil contact is downdip from the gas. oil-water contact is still farther downdip.
What is up dip and down dip?
In an upward direction in a tilting formation. Downdip. The direction going down the tilt angle of the formation. The term “dip” denotes the incline or slope of the formation. Updip therefore means located up the slope, and downdip is the antonym denoting the downward location.
What is dipping reservoir?
In a dipping (not flat-lying) hydrocarbon reservoir that contains gas, oil and water, the gas is updip, the gas-oil contact is downdip from the gas, and the oil-water contact is still farther downdip. Antonyms: downdip.
What is dip in petroleum?
Diploma in Petroleum Engineering is a 3-year course, which is divided into 6 semesters. Petroleum Engineering concerns with the widespread production of crude oil or natural gas. Graduates of the course can pursue further studies in subjects like BTech/BE in Petroleum Engineering.
What is down dip?
1. prep. [Geology] Located down the slope of a dipping plane or surface. In a dipping (not flat-lying) hydrocarbon reservoir that contains gas, oil and water, the gas is updip, the gas-oil contact is downdip from the gas, and the oil-water contact is still farther downdip.
What is difference between apparent and true velocity at seismic refraction?
The velocity recovered from using this slope is called V2u, and is called the updip “apparent” velocity. This will be larger than the true velocity of the layer. Conversely, if you are downdip then the distance travelled by the refracted wave increases with distance and it takes longer for the waves to reach you.
What is formation dip?
strike, in geology, direction of the line formed by the intersection of a fault, bed, or other planar feature and a horizontal plane. Dip is the angle at which a planar feature is inclined to the horizontal plane; it is measured in a vertical plane perpendicular to the strike of the feature.
What is meant by true velocity?
“true velocity” is the velocity that fits a definition for the situation. Apparent velocity is what an observer measures.
How do you calculate apparent velocity?
apparent velocity (v a) The velocity which a wave-front exhibits along a line of geophones. If the wavefront approaches the geophone array at an angle θ, then the true velocity of the wavefront, v, is given by v = v acosθ.
What is dip angle?
Description. Magnetic dip, dip angle, or magnetic inclination is the angle made with the horizontal by the Earth’s magnetic field lines. This angle varies at different points on the Earth’s surface.