Programme international de formation en évaluation du développement (PIFED)

Liposomes: Formation, Preparation, Properties, and Applications - SlideServe

𝐖𝐡𝐞𝐧 𝐎𝐢𝐥 𝐈𝐬 𝐄𝐱𝐭𝐫𝐚𝐜𝐭𝐞𝐝 𝐖𝐢𝐭𝐡𝐨𝐮𝐭 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 𝐁𝐚𝐫𝐫𝐢𝐞𝐫𝐬: Communities in some regions extract crude oil from shallow reservoirs using handmade tools and percussion drilling systems. No rotary rig. No mud pumps. No BOP. Just a tripod, a steel cable, and a heavy chisel bit repeatedly dropped to crush the formation. These wells are typically 20–200 meters deep, targeting old or abandoned reservoirs where hydrocarbons migrated close to surface. Even a few barrel