petroleum production 5 min read
How Does Well Completion Work?
Once a well has been drilled, the decision must be made: Will this well become a producer or be plugged…
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Types of packers
Retrievable tension packer The tension packer (Fig. 1) is typically used in medium- to shallow-depth (LP/LT) production or injection applications.…
petroleum production 5 min read
Packers
The packer (more accurately described as the ‘upper completion production packer’) is a key piece of downhole equipment in many…
petroleum production 4 min read
Christmas Tree or Wellhead?
In the complicated but vital industry of drawing oil and gas out of the earth and getting it to the…
petroleum production 2 min read
Wellhead
A wellhead is an equipment installed at the surface of a completed oil or a gas well that provides a…
petroleum production 3 min read
NATURAL FLOW PERFORMANCE
The most important parameters that are used to evaluate performance or behavior of petroleum fluids flowing from an upstream point…
petroleum production 3 min read
Areal or Pattern Sweep Efficiency (E)
Areal sweep efficiency of an oil recovery process depends primarily on two factors: the flooding pattern and the mobilities of…
petroleum production 3 min read
FLUID MOVEMENT IN WATERFLOODED RESERVOIRS
Many of the principles discussed in this section also apply to immiscible gas injection, primary recovery by gravity drainage, and…
petroleum production 2 min read
Material Balance Equations in Oil or Combination Reservoirs
When discovered, a reservoir may contain oil, gas, and water that can be intermingled or segregated into zones. As described…
petroleum production 1 min read
Empirical Estimates of Primary Oil Recovery
Several attempts have been made to correlate primary oil recovery with reservoir parameters [239-2421. Based on field data [241] from…
petroleum production 3 min read
Petroleum Reservoir
Accumulations of oil and gas occur in underground traps that are formed by structural and/or stratigraphic features. A reservoir is…
petroleum production 1 min read
Important Pressure Transient Analysls Equations
In the equation for skin factor during the pressure buildup, P, is measured just before shutting in the well, and…