¡¡¡¡for satisfying the need of oil field drilling and reducing drilling cost, our company manufacture jytd-10 3/4*5 1/2-21 simple casing heads for many years experience. ¡¡¡¡usage: Connecting outer pipe thread directing to the surface casing pipe thread in the drilling operation. The casing weight in addition to the surface casing can be hanged by the hanger. ations, for example, remedial cementing from the side of the hole and hiting fluid into the side of the hole to to balance the internal pressure at acid-fracturing.
