US 2004/0171499 A1 · Cement compositions with improved mechanical properties and methods of cementing in a subterranean formation

Abstract

The present invention relates to subterranean cementing operations, and more particularly, to cement compositions comprising elastic particles and having improved mechanical properties, and methods of using such compositions in subterranean cementing operations. An example of a method of the present invention comprises the steps of: providing a cement composition comprising a base fluid, a hydraulic cement, and a portion of elastic particles; placing the cement composition in a well bore in a subterranean formation; permitting a portion of the cement composition to enter openings in a region of the subterranean formation in fluid communication with the well bore; and permitting the portion of the cement composition to seal the openings off from the well bore. Another example of a method of the present invention comprises the step of adding a portion of elastic particles to a cement composition.

Claims61

Dependent claims

A method of avoiding the loss of circulation of a cement composition in a subterranean formation, comprising the steps of:

providing a cement composition comprising a hydraulic cement and a portion of elastic particles;
placing the cement composition in a well bore in a subterranean formation;
permitting a portion of the cement composition to enter openings in a region of the subterranean formation in fluid communication with the well bore;
and
permitting the portion of the cement composition to seal the openings off from the well bore.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

10/745,470Filed 22 Dec 2003

Priority

24 Jan 2003

Published

2 Sep 2004

Term ends

Not estimatedThe source records don’t support an estimate.

Classification15 codes

C09K 8/42
Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations:…
C04B 16/04
Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted…
C04B 20/0032
Hollow or porous granular materials: characterised by the gas filling pores, e.g. inert gas or air at reduced pressure
C04B 20/04
Treatment: heat treatment

Cement compositions with improved mechanical properties and methods of cementing in a subterranean formation

Life of this patent

Cement compositions with improved mechanical properties and methods of cementing in a subterranean formation

Life of this patent

Abstract

Claims61