Horizontal wells ball sealers

Diverter choices are also limited. Ball sealers are usually not effective in horizontal wells, because they tend to the bottom side of the pipe. Foam diversion can be effective, to some extent. In any case, it is known that any attempt to divert acid fluids with a nondamaging diverter is better than no diversion at all. 

For successful acidizing of horizontal wells producing from carbonate formations, the keys are treatment placement and efficient use of acid fluids. It is necessary to utilize one or more methods of acid placement or diversion, to impart treatment coverage over as much of the target interval as possible. This is especially challenging in open-hole completions or those utilizing slotted or predrilled uncemented liners. Such completions preclude use of ball sealers and most solid-particulate diverters. 

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See also in sourсe #XX -- [ ]

See also in sourсe #XX -- [ ]

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