Saturday morning, February 7th, 2015, around 9:15 AM—this was the scene I stumbled upon while walking down Halsted Street near 3259 South. By the time I arrived, the fire had already been under control for a few minutes, but it was still quite an intense sight. The flames seemed to have primarily affected the rear porches of a three-story mixed-use building. It wasn’t easy getting clear shots due to the glare of the sun, especially with Engine 29 in my line of sight. The chaos on the ground was palpable as firefighters worked tirelessly to extinguish any remaining embers. I managed to snap some photos before heading off, knowing that the real work was just beginning for those in uniform. Here's what I captured: ![Firefighters Overhauling the Roof](#) *Photo Credit: Eric Haak* This image shows the aftermath of the blaze, with firefighters meticulously checking every corner of the roof for potential hazards. Safety is always their top priority, even after the immediate danger has passed. Another angle reveals a different perspective of the same operation: ![Firefighters Overhauling Roof After Fire](#) *Photo Credit: Eric Haak* In this shot, you can see how Engine 29 and its crew played a critical role in containing the fire. Their efforts were complemented by other units like Engine 28, Truck 8, and Truck 11, all working together seamlessly. Here’s another view that highlights the teamwork involved: ![Firefighters with 35-Foot Ladder](#) *Photo Credit: Eric Haak* The firefighters utilized a 35-foot ladder to access higher levels of the building, ensuring no area was overlooked during their overhaul process. And finally, here are two more images showcasing the equipment and personnel involved in the rescue mission: ![Chicago FD Engine 28](#) *Photo Credit: Eric Haak* ![Chicago FD Truck 8](#) *Photo Credit: Eric Haak* These photos really capture the dedication and professionalism of the Chicago Fire Department. Despite arriving slightly late, I couldn’t help but admire the way they handled the situation with such skill and precision. It’s moments like these that remind us why we’re grateful for their service.

CASING

Casing is a large-diameter pipe that serves as the structural retainer for the walls of oil and gas wells or wellbore.


It is inserted into a well bore and cemented in place to protect both subsurface formations and the wellbore from collapsing and to allow

drilling fluid to circulate and extraction to take place

The oil casing is a steel pipe used to support the well wall of oil and gas wells to ensure the normal operation of the whole well during drilling and after well completion. Several layers of casing shall be used for each well according to different drilling depth and geological conditions. Cement shall be used for cementing after casing is put into the well. It is different from TUBING and drill pipe and cannot be reused. It is a disposable consumable material. Therefore, casing consumption accounts for more than 70% of all oil well pipes.

Casing is a large-diameter pipe that serves as the structural retainer for the walls of oil and gas wells, or wellbore. It is inserted into a well bore and cemented in place to protect both subsurface formations and the wellbore from collapsing and to allow drilling fluid to circulate and extraction to take place.


Surface casing


- Protects the well from contamination in shallow water and gas layers.


- Supports the wellhead equipment and sustains the weight of the other layers of casing.


Intermediate casing


- Isolates different layers of pressure to facilitate normal circulation of drilling fluid and protect the production casing.


- Intermediate casing facilitates the installation of blow-out preventers, anti-leakage devices and tailpipes in the well.


Production casing (oil string)


- It is the conduit through which oil and gas pass from a below surface reservoir.


- It protects the well and separates fluids into various layers.


First, green pipes are threaded on each end. The threading is then inspected and, if necessary, rethreaded to ensure that the thread accurately connects to the coupling. The threading type includes STC/BTC/LTC. The casing pipes are strengthened by surface treatment and are subject to various inspections, including drifting and hydrostatic tests before they are coated and packaged into casing.


Casing pipes are ordinarily produced with outside diameter sizes of 114.3 mm to 508.0 mm.

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