Authors:
Herianto
;
Prasandi Abdul Aziz
;
Wijoyo Niti Daton
and
Steven Chandra
Affiliation:
Institut Teknologi Bandung
Keyword(s):
Frac-pack, Completion, Sand Control, Skin, Productivity Index
Abstract:
Sand problem is one of the obstacles happening in oil and gas wells, especially in poorly consolidated formation.
flowing fluid will generate friction force during flow in porous media and in a longer timeframe, it
can erode the wall of formation and sand will be produced along with the hydrocarbon and become problem
in the whole production system. The negative impacts of this sand start from eroding the tubing wall until
entering the surface facilities, such as separator. Due to this problem, the damaged equipment needs to be
fixed or maintained, which means additional cost. Frac-pack is one of completion methods which is quite
popular nowadays in oil and gas industry due to its proven effectiveness of utilization in the field. Frac-pack is
a combination between hydraulic fracturing and sand control. Utilization of gravel pack only will cause additional
skin for wellbore, leading to decrement of well productivity index. In frac-pack, the hydraulic fracturing
process will co
ver the losses and reduce the skin generated. Therefore, sand problem can be mitigated, and
production also can be compensated. This study will observe frac-pack, starting from its history, mechanism
and effectiveness to be applied in M Well. The gravel pack size will be calculated first and is used as fundamental
of proppant size selection. Then, fracturing process simulation is done using commercial software
generating fracture width and fracture half-length. The result will be used to calculate final well productivity
by considering skin generated. This research has proven that productivity can be enhanced by using frac-pack
until 5.23%. Therefore, frac-pack can be an effective choice of sand control completion method in M Well.
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