2. Formation Testing in a Production Well Column
There are several variants of testing equipment arrangements depending on geological and technical peculiarities of operations.
The most commonly used equipment for operations in well columns is KII-95. The check-turning valve (CTV) can be used as a shut device as well as the multi-cycle device which allows fixing of pressure-build-up curve (PBUC) by means of a tool withdrawal
For wells with AHP the MIK 95 set is used which can withstand pressure drops up to 350 kgf/cm2 (34,323.275 kPa.) The main unit of a set IPC-95 is made in such a way that the time of its opening during packer and testing equipment load creation does not depend on formation temperature which gives opportunity to operate at temperatures up to 1500C...