Coiled Tubing Glossary...

Male Connection: A pipe, coupling or tool that has threads on the outside so it can be joined to a female connection.

Manifold: An assemblage of pipe, valves, and fittings by which fluid from one or more sources is selectively directed to various system or components.

Matrix Acidizing: A method of treating a formation with acid to improve permeability around the wellbore without actual fracturing.

Maximum Anticipated Surface Pressure: The highest pressure predicted to be encountered at the surface of a well. This pressure prediction is based upon a wellbore filled with gas from the surface to the completion interval.

Mill: A downhole tool with rough, sharp, extremely hard cutting surfaces for removing metal by grinding or cutting.

Millidarcy: (MD) One-thousandth of a darcy.

Milling: The act of operating a mill to remove metal from the wellbore.

Moineau Principal: The name given to the operating method of PDM motors due to the inventor Rene Moineau. He was the first to patent such devices between 1930 and 1948.

Mousehole: An opening through the rig floor, usually lined with pipe, into which a length of drill pipe is placed temporarily for later connection to the drill string.

Mud Acid: A mixture of acids and surfactants used to effect mud removal from the wellbore.

Mud Motor: (see PDM).

Mud: The liquid circulated through the wellbore during drilling and workover operations.

Multiple-Stage Cementing: placement of cement slurry around the lower portion of a casing string followed by placement of successive upper stages through ports in a stage or port collar.

Please inform ICoTA to add a glossary term.