This improved downhole drilling tool control system provides a simpler, less expensive, and more reliable means of operating many types of drilling, test, and completion tools. The system is operated by temporary increases in pump pressure, with automatic compensation for changes in hydrostatic pressure. The system provides feedback, is of full-bore design, is compatible with other types of tools, and is simple to use. Multiple controls can be simultaneously run. This test program will define the operability, characteristics, and general practicality of the downhole accumulator charging system in combination with the ball-based actuator system. The testing will be done with a flow loop. Obtaining system durability and responsiveness will be the primary objectives of the testing.The potential commercial application as described by the awardee: This device represents a definite improvement over several critical types of conventional downhole tool controls, due to time and cost savings, improved reliability, and ease of use. Oil company and service company interest has been high; it is felt that patent licensure offers the quickest and most reasonable means of making the hardware available.
