Is a single expiation for an oath sufficient if the oath on a specific sin is repeated with the intention of making the expiation more weighty?

It appears that you are required to offer expiation for each oath you swore, and a single expiation will not suffice, because an oath is based on the intention of the swearer. The scholars have explicitly stated the obligation of expiation for breaking a covenant with Allah and His compact. Ibn Abi Zayd al-Maliki mentioned that if one intends multiple expiations, then they are multiplied by agreement. In conclusion, you owe an expiation for each oath due to the intention of establishing them separately.