Development and Properties Evaluation of Heterogeneous Load Resistant Casing for Deep Shale Oil and Gas
To adapt to the characteristics and service conditions of deep shale oil and shale gas exploitation,the BG125HC high-strength het-erogeneous load resistant casing was developed and its mechanical properties were tested.The results demonstrate that the toughness value of the BG125HC casing remains stable at over 10%yield strength,with a decrease in yield strength of 5.9%at 150℃.Moreover,the col-lapse strength of BG125HC exceeds API standard requirements by 37%,while the shear deformation resistance is 17%higher than that of Q125 grade casing.These findings indicate that BG125HC casing is well-suited for large-scale development of deep shale oil and shale gas.
万方数据
维普
