Abstract: There is disclosed a method for assessing risk associated with drilling a section of a wellbore in a formation using a drilling system, including the steps of: providing a probabilistic model for the risk of the drilling system triggering a failure mode during drilling; and assessing the risk of the drilling system triggering one of the failure modes during drilling of the section based on the probabilistic model. A further such method includes the steps of defining the critical control parameters for the drilling system; and identifying one or more failure modes of the drilling system associated with each critical control parameter which may arise during drilling the section of the formation.

Abstract: A drilling assembly for simultaneous hole enlargement operations comprises a drill bit, an adjustable diameter reamer, and a hole opener. The reamer is coupled with, and positioned uphole from the drill bit. The reamer is adjustable between a first diameter and a second diameter that is larger than the first diameter. The hole opener is coupled with, and positioned uphole from the reamer.

Abstract: Teachings of the disclosure are directed to a reamer and/or bit interaction model system and method. The method may include receiving performance data regarding a cutting structure, and calculating a characteristic curve, using the performance data. The characteristic curve may be weight-based and/or torque-based. The method may also include storing the characteristic curve. In particular embodiments, the characteristic curve may include either weight on cutting structure or torque on the cutting structure, as a function of the rate of penetration.

Abstract: Teachings of the disclosure are directed to a reamer and/or bit interaction model system and method. The method may include receiving performance data regarding a cutting structure, and calculating a characteristic curve, using the performance data. The characteristic curve may be weight-based and/or torque-based. The method may also include storing the characteristic curve. In particular embodiments, the characteristic curve may include either weight on cutting structure or torque on the cutting structure, as a function of the rate of penetration.

Abstract: There is disclosed a method for assessing risk associated with drilling a section of a wellbore in a formation using a drilling system, comprising: providing a probabilistic model for the risk of the drilling system triggering a failure mode during drilling; and assessing the risk of the drilling system triggering one of said failure modes during drilling of the section based on said model. A further such method comprises: defining the critical control parameters for the drilling system; and identifying one or more failure modes of the drilling system associated with each critical control parameter which may arise during drilling the section of the formation.

Abstract: The present invention relates to an anchoring system of counterweights for washers and washer/dryer combos based on the presence of a plurality of tubular divaricable pins (40, 41,42) on the external walls of the plastic molded tubs (1) that, after being inserted into through holes (21a) obtained on the said counterweights, are designed to receive suitable divaricating inserts (40b, 41b, 42b) to prevent uncoupling from the holes.

Abstract: An aggregate for a washing machine provided with a substantially hollow cylindrical suds container of fiberglass reinforced polymeric material and consisting of two end walls and a shell, a hollow cylindrical washing drum disposed in the suds container for rotation on a shaft about a non-vertical axis, and a unitary support structure embedded substantially completely in one of the end walls and with a bearing support adapted to receive the shaft and at least one arm extending radially from the bearing support.

Abstract: Teachings of the disclosure are directed to a reamer and/or bit interaction model system and method. The method may include receiving performance data regarding a cutting structure, and calculating a characteristic curve, using the performance data. The characteristic curve may be weight-based and/or torque-based. The method may also include storing the characteristic curve. In particular embodiments, the characteristic curve may include either weight on cutting structure or torque on the cutting structure, as a function of the rate of penetration.

Abstract: A drilling assembly for simultaneous hole enlargement operations comprises a drill bit, an adjustable diameter reamer, and a hole opener. The reamer is coupled with, and positioned uphole from the drill bit. The reamer is adjustable between a first diameter and a second diameter that is larger than the first diameter. The hole opener is coupled with, and positioned uphole from the reamer.

Abstract: The present invention relates to an anchoring system of counterweights for washers and washer/dryer combos based on the presence of a plurality of tubular divaricable pins (40, 41,42) on the external walls of the plastic moulded tubs (1) that, after being inserted into through holes (21a) obtained on the said counterweights, are designed to receive suitable divaricating inserts (40b, 41b, 42b) to prevent uncoupling from the holes.

Abstract: The present invention relates to a washing machine tank (1), of the type provided with a basically cylindrical structure obtained by moulding plastic materials, designed to house a rotary metal drum, characterised in that it is provided with a smooth bottom wall (2) with central hole, against which a circular cap (3) is exactly engaged and permanently fixed with concavity facing the bottom wall, with a cylindrical nozzle in central position designed to be perfectly aligned with the central hole of the bottom wall.

Abstract: A tub (1) for washer or washer/dryer machine is disclosed, comprising: a tub body composed of a basically cylindrical lateral wall (20) connected by means of a circular connection section (21) to a bottom wall (2) and a cover (3) provided with a circular peripheral section (31) coupled with said bottom wall (2) of the tub body in such a way to form a box-shaped structure. The tub body comprises a first flange (25) that is coupled with a second flange (35) provided in said cover to generate a fluid-tight chamber (40) that can be used for various functions of the machine, such as pressure intake cover (4).

Abstract: A tub for washing machine or washer-drier has a back and a front adapted to be mutually fixed to house a rotary drum where laundry is loaded. The front of the tub defines a loading mouth to provide access to the drum. The front of the tub has at least one stiffening structure, integrally obtained with the front, and adapted to avoid the deformation of the front of the tub and consequent ovalization of the loading mouth.

Abstract: An aggregate for a washing machine provided with a substantially hollow cylindrical suds container of fiberglass reinforced polymeric material and consisting of two end walls and a shell, a hollow cylindrical washing drum disposed in the suds container for rotation on a shaft about a non-vertical axis, and a unitary support structure embedded substantially completely in one of the end walls and with a bearing support adapted to receive the shaft and at least one arm extending radially from the bearing support.