Premium Thread HSM-2 Casing String 140V used for deeper oil gas wells
With the in-depth development of oil and gas exploration and development industry, oil and gas wells are getting deeper and deeper, geological conditions are becoming more and more complex, and the number of casing layers is increasing. The requirements for oil casing, which plays a key role in drilling and completion, are becoming more and more special and harsh. In order to reduce the weight of casing string and increase casing annulus, it is necessary to use oil casing with high strength as possible, And reasonable string structure is designed; The exploration conditions of most oilfields in our country are complex, most of them have the geological conditions of gypsum layer and geological development active layer, and the reservoir is deeply buried, the well depth structure is complex, and the exploitation is difficult. It puts forward higher requirements for the tensile strength, compressive strength, collapse resistance and overall performance of oil casing. Conventional API oil casing is difficult to meet the use requirements of this kind of ultra complex well. High strength deep well oil casing 140V and 110V, 125V are a series of special oil casing specially designed for this kind of ultra deep complex well.