This set of Mud Engineering tools consist of 2 different programs, one used for pumping out of the hole and this one calculates the max pipe pulling speed for the designated pump rate. The second one is for drilling ahead and maintaining a specific wt in the hole versus ROP and pumping rate. It calculates the weight material required for the given parameters. These programs are utilized in the oil and gas industry and are common in deepwater operations. These programs have been run on iphone, ipod and iPad 3.