求翻译： 起钻至安全处，缓慢顶替泥浆使堵液至漏层，若出口见返，则关井缓慢蹩压，控制在4.0MPa以内，不可超过底层破裂压力是什么意思？

 from the drill to a safe place, so blocking the slow replacement fluid to drain mud layer, back to see if the export is shut-in slow limp pressure control in 4.0MPa or less, not more than the bottom cracking pressure

*  drilling mud to safety, slow replacement level, the besieging fluid to leak if export see return provisions, sekii slow, pressure control, within the 4.0 MPa bursting pressure cannot be more than bottom

 Gets up drills to the security place, replaces the mud to cause slowly to stop up the fluid to leak the level, if exports sees returns, then the customs police limps slowly the pressure, controls in 4.0MPa, cannot surpass the first floor bursting pressure

Drilling into safe, slow displacement mud plugging solution to leakage, if exports seen returning, shut-in slow sprain, control in 4.0MPa, no more than the underlying fracture pressure

正在翻译，请等待...