DRILLABILITY OF ROCKS PDF

Doumi About us Contact us Help Terms of use. Publishers Content Coverage Privacy. However, quite often, rock properties like UCS and abrasiveness have historically been used to define rock drillability and help decide bit selection, drive mechanism and drilling parameters. These rock properties are typically estimated using electric log data [17,18,19,20,21] using a known calibration or mea in the laboratory in absence of logs.

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Doumi About us Contact us Help Terms of use. Publishers Content Coverage Privacy. However, quite often, rock properties like UCS and abrasiveness have historically been used to define rock drillability and help decide bit selection, drive mechanism and drilling parameters. These rock properties are typically estimated using electric log data [17,18,19,20,21] using a known calibration or mea in the laboratory in absence of logs.

Quite often these are not well understood or communicated to the end users. The real rock is in between depending upon the rock type. Log in to your subscription Username. The relevant rock properties are density, porosity, compressional and shear wave velocities, unconfined compressive strength, Mohr friction angle, mineralogy, and grain sizes.

Drillability of rocks, by an expert, is defined by a large number of parameters [6,7,8,9,10,11,12,13,14,15,16], which are not well understood or communicated to the end user. As a compromise, the present work describes drillability in terms of eight simple physical, mechanical, and micro-structural properties, which are displayed visually and are available from either log data or from laboratory core testing.

As a result, the industry uses hardly any. Rock Mechanics Symposium and 5th U. Further, it has been found that these estimates do not often provide the full picture of drillability of rocks, which have complicated mineralogy and microstructures that go through complex digenesis process.

Advanced drlllability Show search help. Further, this gives an excellent tool to optimize the bit and drilling process for a given rock formation while depicting its physico-mechanical and micro-structural properties as a signature plot. These are compiled and normalized in a scale of 1 to 8; value of 1 represents very soft rock and a value of 8 represents hard rock, ideally.

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Rock Drillability

Mujind Advanced search Show search help. Log in to your subscription Username. Drillability of rocks, by an expert, is defined by a large number of parameters [6,7,8,9,10,11,12,13,14,15,16], which are not well understood or communicated to the end user. Proceedings of an international conference Diverless and Deepwater Techology: Quite often these are not well understood or communicated to the end users.

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DRILLABILITY OF ROCKS PDF

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