Constructing Flare Pits and Flare Line Berms
Introduction
The oil and gas extraction field is
undoubtedly one where safety and efficiency are key. The proper construction of
flare pits and flare line berms is one of those key elements. These serve as
vital barriers to flammable gases and liquids, helping avoid accidents and
keeping industry standards.
This article discusses the full
process of building flare pits and flare line berms, guiding through important
processes, steps and the best practices and considerations to ensure maximum
safety and operational efficiency.
Flare Pit Construction
Hydrocarbons are safely disposed of
in a designated flare pit. Here are the steps one should follow to build flare
pits correctly:
1.1 Strategic Placement
✔Two flare pits should be built south the wellhead.
✔For a second lateral flare pit, it should be set on the opposite of the slope, East or West depending on the terrain, East being preferred.
1.2 Dimensions and Depth
✔Minimum internal dimensions for each flare pit are 30 meters wide by 40 meters long.
✔The depth of the pit is supposed to be 2 to 3 meters, measured from the top of the wall to the top of the inside floor of the pit.1.3 Grading and Slope
✔The floor of the pits must fall to the center in that line of the flare lines.
✔A pitch toward the well side (front) of the pit allows for effective drainage and avoids pooling of hazardous fluids.
1.4 Structural Integrity and Lining
✔Reinforced soil or concrete lining provides added durability.
✔Install drainage channels to guide excess fluids away from working regions.
Access Berm Construction
Land berms provide safe transport of
heavy duty vehicles transporting equipment and service personnel from the well
pad to flare pits. Stability and Access are Guaranteed by Proper Construction.
2.1 Berm Location and Design
✔From the edge of the well pad to each of the flare pits, build an access berm.
✔Keep the grade level or as level as possible depending its terrain.
2.2 Dimensions and Stability
✔The width of the graded crown on each access berm should not be less than ten meters.
✔This width allows for flare lines, anchor boxes, diesel storage tanks and service-vessel wakes.
✔It is also possible to create a vehicle turn-around pad at the pit end of the access berm to prevent U-turn.
2.3 Optimal Alignment
✔The centerline of the South access berm will be aligned with the wellhead for a clean approach and access.
✔If you are building a lateral access berm, facing East or West, make sure that it is perpendicular to the South berm along the South edge of the location plot.
Factors for Construction
A few considerations when making
sure that flare pits and access berms remain effective and have a longer
lifespan.
3.1 Site Selection
Test soil for load-bearing capabilities.
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