US Patent:
20080047705, Feb 28, 2008
Inventors:
Donald B. Vaello - Hondo TX, US
International Classification:
E21B 43/16
E21B 47/00
US Classification:
16625015, 166369, 166 685, 166 66
Abstract:
Systems and methods for automating the extraction of oil from an oil well, especially low production orphan wells. The system includes an endless loop pump extending into the oil well; a rotational drive motor operably connected to the loop pump; a transfer pump for conveying petroleum product away from the endless loop pump; a microprocessor controller for controlling the rotational drive motor and transfer pump; a number of sensors for sending operational measurements to the microprocessor indicative of the operational characteristics of the rotational drive motor; a collection reservoir for gathering the petroleum product from the endless loop pump; and a liquid level sensor for sending a level measurement to the microprocessor indicative of the level of the petroleum product in the collection reservoir. The system includes a variable sheave-pulley configuration and arrangement as well as complete local and remote system monitoring and reporting. The methods include automated production transfer (and reporting) to storage facilities (tank battery); automated starting and stopping of the loop pump in response to production variations; and improved safety processes for the containment, capture, and processing of casing head gases and liquid products.