выпишите из текста предлодения passive voice подчеркните сказуемое. Equipment failure is probably the EQUIPMENT FAILURE For example, a most common type of production problem. the rod from may well, requiring special equipment called a service rig to recover chassis the hole and pumping mounted on a self-propelled unit will and has a put the well back into production. The rig is do not have a derrick, the from the include a mast and of its own. Since wells drilled in recent years the pump cases to works for removing equipment such as rods, tubing and wellbore. Another common production problem is subsurface pump failure, due in most quickly physical wear of one or more of the pump repairs. If parts. When this occurs, a service from corrosion, remove the pump, and the necessary moving tubing develops can a leak or or mechanical stresses, the service again called to the well. is removed from the hole, the damaged joint is replaced, and the tubing returned to the wellbore. If the well needs quick jolt of clean fluid to get it working again a truck mounted unit is called This unit pulls the pump up the well using its derrick and draw works. A load of clean oil is pumped down by the same unit. The pump is then reseated and the well placed on pump.