BEST PRACTICE IN MANAGING LOST CIRCULATION CHALLENGES DURING DRILLING AND CEMENTING OPERATIONS IN AZAR OIL FIELD
محل انتشار: دومین کنفرانس بین المللی نفت، گاز و پتروشیمی
سال انتشار: 1393
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 887
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شناسه ملی سند علمی:
ICOGPP02_223
تاریخ نمایه سازی: 29 آبان 1394
چکیده مقاله:
Controlling loss circulation with lost circulation materials (LCM) has achieved wide success in the past years. However, investigation into the strength and stability of plugged zone has gained little interest. In fact, ignorance of such knowledge often leads to excess costs from repeatedlyfluid loss and rig time, and increase the difficulty and complexity of loss zone diagnosis. In this work, drilling and cementing operations of hole 12 ¼ of two wells in Azar Oil Field are investigated. Because of the wide range of the pore pressures of formations that are supposed to be drilled in this hole, successive partial to complete loss circulation would be expected. In order to strengthen the formations, prevent losses, and curing them under the case of their occurrence, a combination of solutions including LCM pills (lamellated ones), mud weight reduction, running an excessive casing, cement plugs, and pumping sodium silicate are deployed which lead to finish the drilling and cementing operations of the hole with acceptable results
کلیدواژه ها:
نویسندگان
h Rahmanifard
Drilling Fluids Engineering and Waste Management Department, Deputy Managing Director of NIDC Projects, NIDC, Ahwaz, Iran,
a.r Rasouli
Drilling Fluids Engineering and Waste Management Department, Deputy Managing Director of NIDC Projects, NIDC, Ahwaz, Iran,
n Mayahi
Drilling Fluids Engineering and Waste Management Department, Deputy Managing Director of NIDC Projects, NIDC, Ahwaz, Iran,
a.h Amouri
Drilling Fluids Engineering and Waste Management Department, Deputy Managing Director of NIDC Projects, NIDC, Ahwaz, Iran,
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