Sand control completion options for horizontal wells in soft formations

Journal Article · Mon Feb 01 04:00:00 EST 1999 · Petroleum Engineer International

OSTI ID:308184

Penberthy, W ^[1]

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1. Baker Oil Tools, Houston, TX (United States). Sand Control Systems Div.

Sand control is required in most soft formations. So far, stand-alone screens have been the primary method. From completion, productivity and longevity perspectives, a high percentage of horizontal oil wells have not achieved the desired result: a sand-free, high sustained-productivity producer. Gas wells seem to have fared better. Disappointments have prompted some companies to reassess procedures and strategies involved with horizontal wells in these reservoirs. Gravel packing offers another option for completing horizontal wells, with the advantage of enhancing productivity. Gravel packing provides a means of filling and stabilizing the wellbore with high-permeability gravel, thereby avoiding the plugging and erosion noted with stand-alone screens. Recently, several operators have performed horizontal gravel packs after experiencing unacceptable performance with stand-alone screens. While each completion option has advantages and disadvantages, all have applications. Some are best suited to particular reservoirs, and as a consequence, the applicability of each completion technique must be assessed in light of particular reservoir conditions and reserves. This discussion will review various applications of soft rock completion technology in horizontal service, along with benefits and shortfalls.

• OSTI ID: 308184
• Journal Information: Petroleum Engineer International, Journal Name: Petroleum Engineer International Journal Issue: 2 Vol. 72; ISSN 0164-8322; ISSN PEEID4
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
DIRECTIONAL DRILLING
GRANULAR MATERIALS
NATURAL GAS WELLS
PACKINGS
SAND CONSOLIDATION
SCREENS
WELL COMPLETION