Apparatus for Zonal Communication Interruption

A method of creating a wellbore in an underground formation, comprising the steps of:

• (a) drilling a borehole in the underground formation;
• (b) installing a tubular member into the borehole, the tubular member having a plurality of cement diverters positioned axially along an outer surface of the tubular member, each cement diverter having an axial length and an azimuthal extension of less than 360°, wherein the azimuthal position of at least one cement diverter is axially rotated from an adjacent cement diverter;
• and
• (c) flowing cement into an annulus formed between an inner surface of the wellbore and the outer surface of the tubular member,
• wherein the positioning of the plurality of cement diverters provides zonal communication interruption about every 10 to 20 feet (about every 3.0 to about 6.1 meters) axially along the tubular member.

A method of producing hydrocarbons from a production well of an underground formation, comprising the steps of:

• (a) installing a tubular member into a wellbore of an underground formation, the tubular member having a plurality of cement diverters positioned axially along an outer surface of the tubular member, each cement diverter having an axial length and an azimuthal extension of less than 360°, wherein the azimuthal position of at least one cement diverter is axially rotated from an adjacent cement diverter;
• (b) flowing cement into an annulus formed between an inner surface of the wellbore and the outer surface of the tubular member to form a production well;
• and
• (c) producing fluids containing hydrocarbons from the production well
• wherein the positioning of the plurality of cement diverters provides zonal communication interruption about every 10 to 20 feet axially (about every 3.0 to about 6.1 meters) along the tubular member.