Methods of making and using cement coated substrate

Patent metadata

Field	Value
Publication number	US-9896903-B2
Application number	US-201514716504-A
Country	US
Kind code	B2
Filing date	May 19, 2015
Priority date	May 21, 2014
Publication date	Feb 20, 2018
Grant date	Feb 20, 2018

Abstract

A method of treating a subterranean formation via well bore may include introducing a plurality of particles into the subterranean formation via the well bore, each particle having a substrate and a layer of cement on the substrate. The cement may be in a state of suspended hydration and the method may include introducing moisture to the subterranean formation via the well bore. The method may also include allowing the particles and the moisture to contact one another. Contact between the particles and the moisture may cause the cement to move from a state of suspended hydration to a state of secondary hydration.

First claim

We claim:

1. A method of treating a subterranean formation via well bore, the method comprising:
introducing a plurality of particles into the subterranean formation via the well bore, each particle comprising a substrate and a layer of cement on the substrate;
wherein the cement is in a state of suspended hydration.

2. The method of claim 1 further including:
introducing moisture to the subterranean formation via the well bore; and
allowing the particles and the moisture to contact one another;
wherein the contact between the particles and the moisture causes the cement to move from a state of suspended hydration to a state of secondary hydration.

3. The method of claim 2 , wherein introducing the particles and introducing the moisture occurs simultaneously.

4. The method of claim 2 wherein the introducing the plurality of particles into the subterranean formation via the well bore comprises introducing the plurality of particles into a fracture within the subterranean formation by introducing the plurality of particles into the subterranean formation at a pressure which exceeds a pressure causing fractures, and maintaining such pressure until the state of secondary hydration is reached.

5. The method of claim 4 wherein the plurality of particles is combined with uncoated proppant.

6. The method of claim 2 , comprising:
creating a fracture in the subterranean formation near the well bore before introducing the particles and introducing the moisture, wherein introducing the particles comprises introducing the particles into the fracture, and wherein introducing the moisture comprises introducing the moisture into the fracture; and
producing a hydrocarbon from the subterranean formation via the well bore; wherein the particles provide support to the formation during the producing.

7. The method of claim 1 , comprising:
creating a fracture in the subterranean formation near the well bore before introducing the particles, wherein introducing the particles comprises introducing the particles into the fracture; and
producing a hydrocarbon from the subterranean formation via the well bore; wherein the particles provide support to the formation during the producing.

8. The method of claim 1 , comprising introducing additives to the subterranean formation via the well bore.

Assignees

• Shell Oil Co

Inventors

• Fonseca Ocampos Ernesto Rafael
• Farinas Moya Mauricio Jose
• Verbist Guy Lode Magda Maria
• Van Der Wegen Gerardus Johannes Leonardus
• Van Selst Henricus Lambertus Maria
• Hamelink Cornelis Pieter
• Haverkort Robertus Hermannes Johannes Jozef
• Boer Jochem Okke
• Noe Jeffrey Maloy
• Van Der Horst Jesper
• Brett Peter Liam
• Hackbarth Claudia Jane
• Kerkar Prasad Baloo
• Mowad Benjamin

Classifications

• C09K8/467 Primary

  containing additives for specific purposes · CPC title

• E21B33/138 Primary

  Plastering the borehole wall; Injecting into the formation · CPC title

• E21B43/267

  reinforcing fractures by propping · CPC title

• C09K8/46

  containing inorganic binders, e.g. Portland cement · CPC title

• E21B43/26

  by forming crevices or fractures · CPC title