Author name: DFT Team

Overview Kerr McGee has drilled 20 wells in the field with 4 different drilling techniques to compare the efficacy of each Problems Experienced Difficulty with loss circulation Reservoir gas control Cementing Well clean-up Production stimulation Solution Drilling systems employed and compared: 1. Conventional Water Based Mud (water mud loaded with LCM) 2. Blind/Dry Drilling (drill […]

Overview Geology: Mature Formations, Low Pressure Pressure Gradient: 0.16 a o.20 psi/ft @ 6,000 feet. Equivalent: 2.4 – 3.9 ppg Wells Drilled with Aerated Mud: VLA-1271, VLA-1278, VLA-1283, VLA-1285, VLA-1289 and VLA-1291 Density Equivalent with Aerated Mud: 4.0 ppg Problems Experienced Unstable borehole due shales, tight hole, and stuck pipe Lost circulation even with aerated