ÇAĞRILI KONUŞMALAR / KEYNOTES Invited Speeches ... - TPJD

Problems Faced in Diyarbakır XI Region Wells and the Proposed Solutions
Yavuz Tengiz
Turkish Petroleum Corporation, Exploration Department, Ankara
The area studied is located in Diyarbakır city territory inside XI. Oil Exploration and Production
Region. In this study, reasons of the problems appearing in a time span and frequently faced,
causing production loss and abandonment of the producing wells and consequence of those
problems have been analyzed. For the wells to be drilled in the region, the points to pay attention
during
• Casing set depth,
• Open hole logging,
• Cementing,
• Casing corrosion prevention,
• Perforation interval selection,
• Acidizing
operations, reasons of rising watercut values, the effect of wrong x-y coordinate measurements,
CDR logs taken minimum or none in deviated holes on preparation of misleading location maps
and structural maps respectively and the consequence of these are explained. In the study,
geology, drilling, reservoir, logging, production and workover data and information of total 87
producing and/or abandoned wells existing in the Southeast Anatolia, Diyarbakır XI. Region,
where approximately for 40 years exploration and production activites are resumed, have been
evaluated in details. Production loss during producing wells’ life span, reason/result relations of
the problems causing to abandon wells have been examined and solution proposals have been
presented for new wells to be drilled where similar problems can be encountered.
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