Methods of preventing these particles from reaching the pump are of two general types, screening and sand/gravel packing.
mˈɛθədz ʌv pɹɪvˈɛntɪŋ ðiːz pˈɑːɹɾɪkəlz fɹʌm ɹˈiːtʃɪŋ ðə pˈʌmp ɑːɹ ʌv tˈuː dʒˈɛnɚɹəl tˈaɪps, skɹˈiːnɪŋ ænd sˈænd slˈæʃ ɡɹˈævəl pˈækɪŋ.