METHOD OF TESTING WELLS AND RESERVOIR SURVEY IN PROCESS OF BORING AND FACILITY FOR IMPLEMENTATION OF THIS METHOD Russian patent published in 2009 - IPC E21B47/10 E21B49/00 

FIELD: oil and gas production.

SUBSTANCE: group of inventions refers to geological survey and oil and gas industry and can be implemented for testing of wells and for reservoir survey in process of boring. The method consists in lowering the facility with upper and lower packers, with a filter, bottomhole apparatus and bearing plate to bottomhole on drill pipes. The facility is equipped with bottomhole electric pump, with a back valve for packer pressure testing located above the filter, and with a flush sub assembled above the back valve. Further, the facility is equipped with a valve installed above the upper packer and communicating space between the upper and lower packers and circular space formed with an open well bore and drill pipes at open packers; the facility is also equipped with a valve of control over the upper inflated packer, and with a valve of control over the lower inflated packer. In the filter there are assembled bottomhole devices connected with rods adjusted in length so, that they can be installed in filters at different depth and with different arrangement. When the facility is lowered to the botttomhole, the filter covers all thickness of the reservoir with the packers. The bottomhole pump creates depression. Information is picked-up along the whole thickness of the reservoir per one trip of the facility; information is transmitted via a cable. Also there are determined degree of reservoir contamination and radius of external boundary of reservoir.

EFFECT: upgraded accuracy of field information on filtration-capacitive characteristics of producing reservoir in process of boring.

2 cl, 1 dwg