US 2016/0084037 A1

Cement blends including inert microparticles

(22) 20.09.2013

(43) 24.03.2016

(57) Dry cement blends that include inert microparticles may be used to produce cement slurries with a lower viscosity and a longer aging window. For example, a related method may include providing a cement dry blend comprising a plurality of cement particles and a plurality of ­inert microparticles, wherein the inert microparticles have an average diameter at least about 3 times smaller than that of the average diameter of the cement particles; mixing water, a set retarding additive, and the cement dry blend to yield a cement slurry; storing the cement slurry; mixing a cement set accelerator into the cement slurry; introducing the cement slurry into a wellbore penetrating a subterranean formation; and allowing the cement slurry to set at a location within the wellbore, the subterranean formation, or both.

(71) Halliburton Energy Services, Inc., Houston, TX (US)

(73) Halliburton Energy Services, Inc., Houston, TX (US)

Related articles:

Issue 5/2017 GB 2542309 A

Systems and methods for analyzing the characteristics and compositions of cement additives

(22) 26.08.2014 (43) 15.03.2017 (57) Optical analysis systems and methods may be used for analyzing the characteristics, including compositions, of cement additives, which may be used in formulating...

more
Issue 1-2/2019 US2018328162 (A1)

Measurement of cement properties

(22) 26.08.2016 (43) 15.11.2018 (57) A method and system for calculating the viscosity of cement slurry used for a primary cementing of an oil or gas well (12) comprises: pumping the cement slurry...

more
Issue 9/2016 US 2016/0200959 A1

Wellbore cement compositions and wellbore cementing methods

(22) 21.03.2016 (43) 14.07.2016 (57) A wellbore cement composition includes substantially unhy­drated cement powder and additive powder for cement. The additive powder is formulated from ingredients...

more
Issue 4/2017 US 2017/0036956 A1

Calcium phosphate cement compositions comprising pumice and/or perlite and ­associated methods

(22) 20.10.2016 (43) 09.02.2017 (57) Methods and compositions are provided that related to cementing operations. Methods and com­positions that include pumice and/or ­perlite as a replacement for...

more
Issue 5/2017 US 2017/0073567 A1

Diutan as a rheological modifier in sorel cements

(22) 22.06.2014 (43) 16.03.2017 (57) Systems and methods for modifying rheology of a cement slurry are described. Systems and methods may include a composition including diutan and a Sorel cement....

more