Enhanced recovery

Abrasive Jet Perforating Restores Productivity of an Inactive Oil Producer

This paper illustrates a novel methodology that enabled the safe application of coiled tubing abrasive perforation to increase production in a sour horizontal extended-reach oil producer.

Multifinger-image-log results showing enlarged openhole interval at the parted-liner section.
Fig. 1—Multifinger-image-log results showing enlarged openhole interval at the parted-liner section.

The complete paper illustrates a novel methodology that enabled the safe application of coiled tubing (CT) abrasive perforation to increase production in a sour horizontal extended-reach (ER) oil producer. The well was underperforming at 10% of the anticipated production rate because of a damaged lower completion. To avert a costly workover, abrasive perforation with CT was selected as a safe alternative to conventional explosives-based perforating conveyed on electric line.

Introduction

An offshore horizontal ER producer well was drilled with a total depth (TD) in excess of 24,000‑ft measured depth (MD). During the completion phase, a 4.5-in. liner with 16 inflow control devices (ICDs) and eight swellable packers was run with the ICDs in the closed position.

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