Hocol Colombia operates in Ocelote field at the eastern part of Colombia, a land called as Llanos Orientales (Eastern Plains). In this field Hocol produced from Carbonera formation observing problems with formation deconsolidation. Normally, gravel packs jobs are performed on vertical wells with sustained good results.

However, new reservoir studies showed that horizontal wells with regular length extension (around 1000 ft) would be more profitable for this field. In order to get this objectives, Hocol design a horizontal wells Program to drill and test alternatives to get good completion of these wells. The first well was completed and gravel packed using conventional technologies and a 35% of pack efficiency was achieved.

The objective for the second well was to get at least 75% of packing efficiency. In a synergetic team effort, service companies proposed operator company new technologies that are used in other places but never were applied in Colombia. After simulations and technical meetings, the Operator decided to test two new technologies to try to get their operative and technical objective.

This paper presents the technical and operative fundamental used to support these changes and the results obtained with theses applications.

Keywords:
regular light proppant 16 20, gravel pack, bpm, packer, proppant spgr 1, hydraulic fracturing, upstream oil & gas, completion, open hole, brine
Subjects:
Drilling Operations, Hydraulic Fracturing, Directional drilling, Gravel pack design & evaluation, Sand Control, Completion Operations
Copyright 2010, Society of Petroleum Engineers
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