Methods of Using Wellbore Servicing Compositions

Abstract

A method of servicing a wellbore comprising preparing a composition comprising a non-aqueous carrier fluid, an oil-wetting surfactant, a water-imbibition enhancing surfactant, and a cementitious material; placing the composition within a detrimentally permeable zone; and contacting the composition with water. A method of servicing a wellbore comprising placing a composition comprising a non-aqueous carrier fluid, an oil-wetting surfactant, a water-imbibition enhancing surfactant, and a cementitious material into the wellbore wherein the wellbore comprises hydrocarbon-producing zones and water-producing zones and wherein the composition enters the water-producing zone and forms a solid mass that obstructs the flow of water in the water-producing zone. A method of servicing wellbore comprising placing a composition comprising a non-aqueous carrier fluid, an oil-wetting surfactant, a water-imbibition enhancing surfactant, and a cementitious material into a lost circulation zone within the wellbore; and contacting the composition in situ with a water source.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a regular utility application which claims priority to U.S. Provisional Patent Application Ser. No. 61 / 655,190, filed Jun. 4, 2012 and entitled “Design Considerations of Oil-Based, Squeeze Cement Slurries to Prevent Unwanted Fluid Production: Methods of Slurry Performance Evaluation and Potential Formulation Improvements;” which is incorporated by reference herein in its entirety.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT[0002]Not applicable.BACKGROUND[0003]1. Technical Field[0004]This disclosure relates to compositions for servicing a wellbore. More specifically, this disclosure relates to methods of treating water producing zones and zones of detrimental permeability.[0005]2. Background[0006]A natural resource such as oil or gas residing in a subterranean formation can be recovered by drilling a well into the formation. The subterranean formation is usually isolated from other formations using a ...

AI Technical Summary

Benefits of technology

The patent describes a method for servicing a wellbore by using a composition containing a non-aqueous carrier fluid, an oil-wetting surfactant, a water-imbibition enhancing surfactant, and a cementitious material. The composition is placed in a detrimental area or a lost circulation zone within the wellbore and contacted with water to form a solid mass or cement that prevents the flow of water or oil. The technical effect of this composition and method is that it provides an effective and efficient way to control the flow of liquids in a wellbore, which is crucial for the safe and successful operation of oil and gas wells.

Problems solved by technology

Unfortunately, water rather than oil or gas may eventually be produced by the formation through the fractures therein.

In addition to the fracturing fluid, other fluids used in servicing a wellbore may also be lost to the subterranean formation while circulating the fluids in the wellbore or otherwise placing fluids in the wellbore.

As a result, the service provided by such fluid is more difficult to achieve.

For example, a drilling fluid may be lost to the formation, resulting in the circulation of the fluid in the wellbore being terminated and / or too low to allow for further drilling of the wellbore.

In addition to the loss of fluids to the formation, wellbore servicing operations may be detrimentally impacted by the production of water from subterranean formations designed to produce hydrocarbons, especially in mature wells.