Study on Theoretical Model and Influencing Factors of High Propagation of Vertical Well Pressure Fractures in Block S

The gas reservoir in block S is relatively thin, and the fracture height of thin out control seriously, effective support efficiency less than 50%. In view this problem, paper investigates application status high-pressure fracturing technology, carries research on theoretical model influencing factors high expansion vertical well pressure fractures s. results show that in-situ stress difference between reservoirs most critical factor to height, which directly determines success rate construction. When greater 4MPa, can be effectively controlled. According profile geological data drilled wells s, it suggested select interlayer with 4MPa low elastic modulus for