Mob is bringing a piece of equipment to an area / country of work and demob is removing the said piece of equipment from the area / country of work. This includes also bringing a drilling vessel to the drilling site and taking it away after completion of the work
Mineral interests in properties include (1) a fee ownership or lease, concession or other interest representing the right to extract oil or gas subject to the agreed upon terms; (2) royalty interests, production payments payable in oil or gas and other non-operating interests in properties operated by others; and (3) agreements with foreign governments according to which an entity participates in the operation of the properties or otherwise serves as producer of the underlying reserves. Properties do not include other supply agreements or contracts that give the right to purchase, rather than extract, oil and gas
Measurements-while-drilling (MWD) and logging-while-drilling (LWD) logs are also taken downhole. They are either transmitted to surface by mud pulses, or else recorded downhole and retrieved later when the instrument is brought to surface. The evaluation of physical properties, usually including pressure, temperature and wellbore trajectory in three-dimensional space, while extending a wellbore. MWD is now standard practice in offshore directional wells, where the tool cost is offset by rig time and wellbore stability considerations if other tools are used. The measurements are made downhole, stored in solid-state memory for some time and later transmitted to the surface
Where a well has been abandoned, the holder of the petroleum right shall erect thereon a sign, being a 6-inch vertical steel pipe planted firmly in the ground and projecting at least 1.5 meters above ground level
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The act of setting a packer or retrievable bridge plug above the perforations in a wellbore and applying pressure to the annulus in order to ensure soundness of the casing
