Microhole technology lowers reservoir exploration, characterization costs

MICROBOREHOLES-1Development of technology to drill small-diameter boreholes and the imminent marriage of this technology with micro-instrumentation can result in low-cost, deep wells for both exploration and instrumentation access.These boreholes, called microboreholes or simply microholes, can have diameters of 1 3/8 to 2 in. at terminal depth.As access for instrumentation, the availability of microholes can encourage and support improved reservoir characterization, monitoring, and management. Microholes also offer the possibility of extending existing wells without pulling production tubing and of serving as drain holes or root systems.A fresh look at the feasibility of drilling deep, s...

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