초록 ▼

A multi-valve well testing system adapted to be disposed downhole in a borehole, includes a plurality of valves and a plurality of well tool control systems connected, respectively, to the plurality of valves and further includes an automatic control mode feature. The well testing system includes a

A multi-valve well testing system adapted to be disposed downhole in a borehole, includes a plurality of valves and a plurality of well tool control systems connected, respectively, to the plurality of valves and further includes an automatic control mode feature. The well testing system includes a controller board which comprises a microprocessor and a read only memory (ROM). The ROM has encoded therein a set of microcode which, when executed by the microprocessor, causes the various plurality of valves in the well testing system to be opened and closed automatically, without intervention from the operator at the well surface. A kickoff stimulus is required in order to begin execution of the microcode by the microprocessor. This kickoff stimulus could include a sensing, by a pressure transducer, of a predetermined bottom hole pressure, or a sensing, by a strain gauge, of a predetermined set down weight of the well testing system. As a result, in response to a predetermined kickoff stimulus, the well testing system automatically begins a test which includes the automatic opening and closing of a plurality of valves a predetermined number of times, and in a predetermined sequence.

대표청구항 ▼

A well testing system adapted to be disposed in a borehole, comprising: stimulus generating means for generating an initial kickoff stimulus; a plurality of valves; a plurality of control system means connected respectively to the plurality of valves for operating said valves; and control means inte

A well testing system adapted to be disposed in a borehole, comprising: stimulus generating means for generating an initial kickoff stimulus; a plurality of valves; a plurality of control system means connected respectively to the plurality of valves for operating said valves; and control means interconnected between said plurality of control systems means and said stimulus generating means for automatically controlling the operation of one or more of said plurality of control system means and thereby one or more of said plurality of valves in a predetermined manner in response to said initial kickoff stimulus. A method of automatically controlling a plurality of valves disposed in a multi-valve well testing system when said system is disposed in a borehole, comprising: generating an initial kickoff stimulus signal; receiving said initial kickoff stimulus signal in a processor means disposed in said system; executing in said processor means a set of instructions stored in a memory disposed in said system in response to said initial kickoff stimulus signal; and automatically controlling one or more of said plurality of valves during the execution of said set of instructions.