Casing/cementing/zonal isolation

Continuous Innovation Achieves Better Zonal Isolation in Extended-Reach Wells

Operators at a UAE field experienced several challenges while cementing production sections. A systematic approach was applied that used standard cementing best practices as a starting point.

jpt-2018-05-188295f1.jpg
Fig. 1—Different failure modes of cement sheaths.

Operators at a UAE field experienced several challenges while cementing production sections. A systematic approach was applied that used standard cementing best practices as a starting point. An advanced cement-placement software was used to model prejob circulation rates, bottomhole circulating temperatures, centralizer placement, and mud removal. To enhance conventional chemistry-based mud cleaning, an engineered fiber-based scrubbing additive was used in spacers with a microemulsion-based surfactant.

×
SPE_logo_CMYK_trans_sm.png
Continue Reading with SPE Membership
SPE Members: Please sign in at the top of the page for access to this member-exclusive content. If you are not a member and you find JPT content valuable, we encourage you to become a part of the SPE member community to gain full access.