Dow Global Technolgoies LLC

Halliburton Energy Services, Inc.

Dow Global Technology Inc.

Andy Cheng Chang

Yunwa Wilson Cheung

Hong Peng

Rajen M Patel

Antonios K Doufas

Charles F Diehl

Benjamin C Poon

William Mark Richards

Hongyu Chen

Shih-Yaw Lai

Wenbin Liang

Stephen M Hoenig

Ronald J Weeks

Daniel G Moldovan

Ashish Sen

Edward N Knickerbocker

Charles Timothy Smith

Varunesh Sharma

Joy Francine Jordan

Gagan Saini

Bryon Paul Day

Michael Linley Fripp

Thomas Jason Pisklak

Krishna M Ravi

Zachary R Murphree

Ronald Wevers

Yuen-Yuen D Chiu

Jozef J I Van Dun

Renette E Richard

Christian Lee Sanders

Stephen M Englebert

Randy E Pepper

Thomas G Pressly

David T Gillespie

Jeffrey D Weinhold

William Brian Atkins

Ashish Batra

Jill M Martin

Thomas Singh Sodhi

Seema V Karande

Xueyu Pang

Walmy Cuello Jimenez

John P Singh

Timothy Edward Harms

Matthew Lewis Lahman

Jesse Clay Hampton

Carlos E Ruiz

Jacquelyn A Degroot

Qi Liang

Gert Johannes Claasen

Syed Muhammad Farrukh Hamza

Suzanne M Guerra

Kate R Brown

Stephen Byrne Persac

Barbara Bonavoglia

Aleksandar Stoiljkovic

Enrique Torres

Lizhi Liu

Aaron Cade Prince

Thomas I Butler

Marcos Aurelio Jaramillo

Carolin Boehm

Bryon P Day

Ruixiang Gu

Byron P Day

Paul B Lively

Jacquelyn A DeGroot

Jacques Carrere

Jill Minick Martin

Jean-Francois Xavier Koenig

Christine Delabroye

Filip Tauson

Zachary Ryan Murphree

Andre Soto

Gert J Claasen

Josef J I Van Dun

Josef JI Van Dun

Loic Chereau

Daniel Moldovan

Yeun-Yuen D Chiu

A stretch-modified elastomeric multilayer film comprising a core layer comprising a first ethylene-&#x3b1;-olefin block copolymer, wherein the first ethylene-&#x3b1;-olefin block copolymer comprises at least 50 mol. % ethylene, has a melt index (I2) from 0.5 g/10 min to 5 g/10 min, and has a density of 0.850 g/cc to 0.890 g/cc, and at least one outer layer independently comprising a second ethylene-&#x3b1;-olefin block copolymer and from 2.5 to 30 wt. % of an antiblock agent, wherein the second ethylene-&#x3b1;-olefin block copolymer comprises at least 50 mol. % ethylene, has a melt index (I2) from 0.5 g/10 min to 25 g/10 min, and has a density of 0.850 g/cc to 0.890 g/cc, wherein the density of the first ethylene-&#x3b1;-olefin block copolymer is equal to or greater than the density of the second ethylene-&#x3b1;-olefin block copolymer.

Polyolefin-based elastic film structures, laminates and methods thereof

Induced material segregation methods of manufacturing a polycrystalline diamond compact (PDC) cutter result in formation of a polycrystalline diamond/tungsten carbide (WC) composite material having a smooth compositional gradient from maximum WC concentration at one face to maximum diamond concentration at another face. Because the compositional gradient is smooth, very little or no mismatch of coefficient of thermal expansion occurs, which improves a service lifetime of the PDC cutter.

Induced material segregation methods of manufacturing a polycrystalline diamond tool

The present disclosure relates to a polycrystalline diamond compact (PDC) including a gradient interfacial layer between a thermally stable diamond (TSP) table and a base, such as a substrate or an earth-boring drill bit body. The gradient interfacial layer has a gradient of coefficients of thermal expansion between that of the diamond and the base. The disclosure also relates to methods of forming a gradient interfacial layer and a PDC containing such a layer.

Polycrystalline diamond compact with gradient interfacial layer

A method and system for treating a subterranean formation involves detecting the displacement and position of a downhole fluid having a pH through the fluids reaction with a pH-sensitive material, mobilizing a plug assembly comprising the material to contact one or more constrictions in a wellbore casing.

pH-sensitive chemicals for downhole fluid sensing and communication with the surface

Compositions are provided that comprise: (1) a polymer selected from the group consisting of: (A) an ethylene/&#x3b1;-olefin multiblock interpolymer; (B) a propylene based plastomer or elastomer; and (C) a mixture of (A) and (B); (2) from about 1 to about 75 weight percent filler based on the weight of the composition; and (3) an effective amount of tackifier.

Heat-resistant polyolefin compositions suitable for films

A well seal tool includes a base tubing and a seal element carried on an exterior of the base tubing. The seal element includes a polymer changeable between a compressed state and a sealing state. The seal element has a first stiffness in response to a first strain rate of the polymer and a second, substantially higher stiffness in response to a second, higher strain rate of the polymer.

Changeable well seal tool

A multi-layer composite synthetic test bed may be used to model fracture propagation and fracture networks. For example, a fracturing fluid may be introduced into a multi-layer composite synthetic test bed at a pressure and a flow rate sufficient to create a fracture network therein. Then, the fracture network may be analyzed to produce synthetic fracture data, which may be used in a fracture model.

Synthetic test beds for fracturing optimization and methods of manufacture and use thereof

A well system includes a drop plug element and an internal plug seat in an internal flow path of a well tubing. At least one of the plug seat or the drop plug element includes a polymer that is deformable, having a first stiffness when subjected to a first strain rate, to allow the drop plug element to pass through the plug seat. The polymer resists deformation, having a second, higher stiffness when subjected to a second, higher strain rate, to resist allowing the plug element to pass through the plug seat and to seal the plug element and plug seat.

Deformable plug and seal well system

A well treatment for treating a well includes discrete stop loss elements to seal a fluid loss opening of a well. The discrete stop loss elements include polymer resistive to deformation with an initial stiffness in response to an initial strain rate of the polymer to produce a specified initial pressure signal and deformable with a subsequent, lower stiffness in response to a subsequent, lower strain rate of the polymer to produce a subsequent, different specified pressure signal.

Fluid loss well treatment

A wellbore cementing plug includes a plug element including a polymer. The polymer is deformable at a first stiffness when subjected to a first strain rate to allow the plug element to pass through a wellbore while sealing against passage of cement past the plug element. The polymer resists deformation at a second, higher stiffness when subjected to a second, higher strain rate to resist allowing the plug element to pass through the wellbore while sealing against passage of cement past the plug element.

Well system cementing plug

This invention relates to methods of forming an elastic, breathable film/nonwoven layer laminate. In particular, the invention pertains to elastic polymer compositions that can be more easily processed on cast film lines, extrusion lamination or coating lines. The compositions of the present invention preferably comprise an elastomeric polyolefin resin and a high pressure low density type resin.

Elastic films and laminates

This invention relates to polyolefin compositions. In particular, the invention pertains to elastic polymer compositions that can be more easily processed on cast film lines, extrusion lamination or coating lines. The compositions of the present invention preferably comprise an elastomeric polyolefin resin and a high pressure low density type resin.

Compositions of ethylene/alpha-olefin multi-block interpolymer for elastic films and laminates

A fiber is obtainable from or comprises an ethylene/&#x3b1;-olefin interpolymer characterized by an elastic recovery, Re, in percent at 300 percent strain and 1 cycle and a density, d, in grams/cubic centimeter, wherein the elastic recovery and the density satisfy the following relationship: Re&#x3e;1481&#x2212;1629(d). Such interpolymer can also be characterized by other properties. The fibers made therefrom have a relatively high elastic recovery and a relatively low coefficient of friction. The fibers can be cross-linked, if desired. Woven or non-woven fabrics can be made from such fibers.

Fibers made from copolymers of ethylene/&#x3b1;-olefins

The present invention includes a polyolefin elastomeric composition comprising a propylene-based elastomer having at least seventy five weight percent units derived from propylene, the propylene-based elastomer exhibiting a heat of fusion of from 1 to 35 Joules/gram, a weight average molecular weight of from 5400 to 875000 g/mol, and a permanent set of less than 40%; and a homogeneous ethylene-alpha olefin interpolymer having a molecular weight distribution of less than 3.5, a density from 0.885 to 0.915 g/ml, and a heat of fusion of from 65 to 125 Joules/gram, wherein the ratio of the propylene-based elastomer to the homogeneous ethylene-alpha olefin interpolymer is from 97:3 to 80:20, and wherein the composition exhibits a heat of fusion from 2 to 55 Joules/gram, and a 2% secant flexural modulus of less than 69 MPa.

Propylene-based elastomeric composition

A fiber is obtainable from or comprises an ethylene/&#x3b1;-olefin interpolymer characterized by an elastic recovery, Re, in percent at 300 percent strain and () cycle and a density, d, in grams/cubic centimeter, wherein the elastic recovery and the density satisfy the following relationship: Re&#x3e;1481&#x2212;1629(). Such interpolymer can also be characterized by other properties. The fibers made therefrom have a relatively high elastic recovery and a relatively low coefficient of friction. The fibers can be cross-linked, if desired. Woven or non-woven fabrics can be made from such fibers.

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Houston, TX, United States of America

Andy Cheng Chang