Doris Inc.

United States

Doris Inc.

United States

Time filter

Source Type

Noles J.G.,Murphy West Ltd. | Kachich A.,Doris Inc.
JPT, Journal of Petroleum Technology | Year: 2011

Two blowout-preventer (BOP) stacks were used at the Azurite floating drilling, production, storage, and offloading (FDPSO) vessel, an innovative approach in specifying the equipment to fulfill the drilling requirements. A stack, customized to safeguard against such an occurrence, was specified that would be a standalone module that would not require the rigorous functionality of the surface stack or require control lines running down to it from the surface. The surface stack was fitted out with fixed pipe rams, interlocking shear rams, variable-bore rams, and an annular BOP capable of complete wellbore closure. The equipment required an arrangement of moonpool winches, a trolley system for the SID, twin bridge cranes to enable movement of the two stacks to well center, and a specifically designed lifting frame to lift both stacks. The surface-BOP stack required both operation lines and choke and kill lines and the choke and kill lines were attached after the surface stack was in place over the moonpool.


Schmid S.R.,University of Notre Dame | Liu J.,University of Notre Dame | Liu J.,Doris Inc. | Selles M.A.,Polytechnic University of Valencia | Pasang T.,University of Auckland
Computational Materials Science | Year: 2013

Friction and heat transfer in metal forming simulations are usually restricted by software to be interface constants, a situation not reflected by the mechanics of real manufacturing processes. A better simulation approach is to use a micromechanics based method to estimate friction and heat transfer as evolutionary phenomenon. This paper presents a friction and heat transfer module for hot forging simulations. The friction model is based on a lubricant film thickness calculation using the Reynolds equation, and a calculation of the fractional contact area based on asperity flattening and roughening. Friction is then portioned between asperity and lubricant contacts. Heat transfer coefficients are calculated using a new model for heat conduction through asperity contact patches and lubricant that takes into account the restriction to heat flow at the contacts. The program is implemented as a user routine in a popular commercially available finite element code, DEFORM 2D. © 2013 Elsevier B.V. All rights reserved.


Trademark
Gildan Apparel Canada Lp, 8911126 Canada Inc., Doris Inc. and Doris Hosiery Mills Ltd. | Date: 2013-02-08

Legwear, namely, hosiery, stockings, knee highs, leggings; shapewear, namely, camisoles, panties, body shapers.


Hampshire K.C.,Murphy West Ltd. | Noles J.G.,Murphy West Ltd. | Kachich A.,Doris Inc.
Proceedings of the Annual Offshore Technology Conference | Year: 2010

One reason for the success of the Azurite Floating, Drilling, Production, Storage and Offloading (FDPSO) vessel was the innovative approach in specifying the equipment to fulfill the drilling requirements. This resulted in the specification and deployment of many unique drilling components that combine to make up the drilling structure that extended from the sea floor to the surface. This paper focuses on the first stage rationale, the planning, the preparation of this equipment for service, and the method by which it was installed. The equipment discussed constitutes everything in-line, from the wellhead up to the rig floor, for the drilling campaign. Copyright 2010, Offshore Technology Conference.


Stensgaard T.J.,Murphy West Africa Ltd. | White C.E.,Doris Inc. | Schiffer K.R.,Doris Inc.
Proceedings of the Annual Offshore Technology Conference | Year: 2010

Subsea installation campaigns in support of deepwater field developments are expensive and require specialized vessels to carry-out the work scope. The traditional method entails deploying a costly subsea construction vessel, complete with remote operated vehicle (ROV) capabilities, survey and heave-compensating cranes. However, with a Floating, Drilling, Production, Storage and Offloading (FDPSO) postioned directly over the drill center, a new alternative to the traditional subsea installation campaign came into view. This paper presents the unique challenges related to subsea hardware installation from an FDPSO, and the methods developed to overcome those challenges. Copyright 2010, Offshore Technology Conference.


Allen D.W.,VIV Solutions LLC | Lee L.,Doris Inc. | Henning D.,VIV Solutions LLC | Liapis S.,Royal Dutch Shell
Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE | Year: 2015

Most deepwater tubulars experiencing high currents frequently require vortex-induced vibration (VIV) suppression to maintain an acceptable fatigue life. Helical strakes and fairings are the most popular types of VIV suppression devices in use today. It is quite common to use only one type of device (helical strakes or fairings) on a single tubular and, in fact, to use a single device type on an entire tubular array. The use of both styles of suppression devices on a single tubular has grown in popularity, but mixing them within an array is a relatively new concept. It is sometimes desirable to use one suppression device on one tubular and another suppression device on an adjacent or tandem tubular. This paper utilizes results from two different types of VIV experiments. The first consists of a long tubular at high Reynolds numbers with VIV suppression on the outer end where current speeds are the highest. The use of only fairings, only strakes, or a mixture of the two devices is examined. The second VIV experiment examines the use of helical strakes on one tubular and fairings on a tandem tubular. Results are compared to experiments with either helical strakes on both tubulars or fairings on both tubulars. This paper is intended to provide some direction, and in many cases assurance, for mixing helical strakes and fairings on deepwater tubulars. © 2015 by ASME.


Allen D.W.,VIV Solutions LLC | Lee L.,Doris Inc. | Henning D.,VIV Solutions LLC | Liapis S.,Royal Dutch Shell
Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE | Year: 2015

Most deepwater tubulars experiencing high currents frequently require vortex-induced vibration (VIV) suppression to maintain an acceptable fatigue life. Helical strakes and fairings are the most popular VIV suppression devices in use today. Marine growth can significantly affect the VIV of a bare riser, often within just a few weeks or months after riser installation. Marine growth can have a strong influence on the performance of helical strakes and fairings on deepwater tubulars. This influence affects both suppression effectiveness as well as the drag forces on the helical strakes and fairings. Unfortunately, many VIV analyses and suppression designs fail to account for the effects of marine growth at all, even on a bare riser. This paper utilizes results from both high and low Reynolds number VIV test programs to provide some design considerations for managing marine growth for VIV suppression devices. © 2015 by ASME.


Trademark
Doris Inc. | Date: 2012-02-10

Skin care products, namely, cleansers, toners, serums, moisturizers, eye creams, body creams.


Trademark
Doris Inc. | Date: 2013-05-23

Clothing, namely, leggings, hosiery, lingerie, underwear, undergarments, exercise wear in the nature of exercise tops and exercise bottoms, and loungewear.


Trademark
Doris Inc. and Doris Hosiery Mills Ltd. | Date: 2013-02-08

Legwear, namely, pantyhose, tights and thigh highs.

Loading Doris Inc. collaborators
Loading Doris Inc. collaborators