Schlumberger Technology Corporation

Miranda Amarante

Shitong Sherry Zhu

Jahir A Pabon

Francois M Auzerais

John David Rowatt

Indranil Roy

Huilin Tu

S Sherry Zhu

Anton Kolyshkin

Yucun Lou

Meng Qu

Matthew Godfrey

Roman Kats

Lillian Guo

Philip Kokel

Yuxiang Liu

Gauri Joshi

Vadim KAMIL'EVICH Khlestkin

A stator for a mud motor and methods for manufacturing and using the same, of which one such method includes obtaining a mud motor having a stator made at least partially from a rubber. At least a portion of the rubber is cured by at most about 90%. The method also includes deploying the mud motor into a well as part of a drill string. The rubber is not further cured prior to deploying the mud motor into the well. The method further includes generating torque using the mud motor by pumping a mud through the stator.

Undercured stator for mud motor

Embodiments may generally take the form of a degradable composite structure and a method for controlling the rate of degradation of a degradable composite structure. An example embodiment may take the form of a degradable polymer matrix composite (PMC) including a matrix having: a degradable polymer, a fiber reinforcement, and particulate fillers. The fiber loading is between approximately 10% to 70% by weight and the particulate loading is between approximately 5% to 60%.

Degradable composite structures

A component can include a degradable polymeric material that includes a thermoplastic elastomeric matrix and alloy particles disposed at least in part within the matrix where the alloy particles include aluminum and one or more metals selected from a group of alkali metals, alkaline earth metals, group 12 transition metals, and basic metals having an atomic number equal to or greater than 31.

Degradable polymeric material

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Katy, TX, United States of America

Miranda Amarante