Methods of Using Wellbore Servicing Compositions

a composition and wellbore technology, applied in the direction of borehole/well accessories, sealing/packing, sustainable waste treatment, etc., can solve the problems of inability to service the wellbore, the fluid circulation in the wellbore being terminated and/or too low to allow for further drilling of the wellbor

Inactive Publication Date: 2013-12-05
HALLIBURTON ENERGY SERVICES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0044]The compressive strength of a TREAT of the type disclosed herein was compared to the compressive strength of cement slurries containing microfine particles. Three cement slurries were prepared: Sample A (Control) contained MICROMATRIX cement and MOC A surfactant in diesel; Sample B contained the same components as Sample A with the exception that MOC A surfactant was replaced with OMC 2 which is an non-aqueous drilling fluid conditioner and Sample C contained OMC 2, LOSURF 20N which is a cationic non-emulsifying surfactant and MICROMATRIX cement in diesel. MICROMATRIX cement, MOC A surfactant, OMC 2 fluid conditioner and LOSURF 20N which is a cationic non-emulsifying surfactant based on quaternized ammonium salt are all commercially available from Halliburton Energy Services, Inc. The general procedure for the preparation of the slurries was as follows: to 25 ml diesel containing 0.5 ml ((2% by volume of diesel) of MOC-A surfactant as OWS in a blender, 50 grams MICROMATRIX cem...

example 2

[0046]Various TREATs of the type disclosed herein were prepared and their ability to imbibe water under static conditions was evaluated. Specifically, samples containing OWS / WIES surfactant combination as indicated in Table 2 were prepared according to the procedure and amounts described in the general procedure in Example 1. The amount of WIES solution was 0.5 ml. The amount of solid WIES, for example LOSURF 2000S, was 0.3 grams. LOWSURF 396 is a non-ionic surfactant, LOWSURF 2000S is a solid anionic surfactant mixed with a solid hydrotrope, and LOSURF 19N is a quaternary ammonium salt based on benzyl dimethyl coco ammonium chloride that is dissolved in a non-aqueous solvent system comprising oxygenated solvent. All tested surfactants are available from Halliburton Energy Services, Inc. The slurries were placed in an Erlenmeyer flask and water was poured gently down the walls of the flask to simulate contact of the samples with water within a DPZ and to ensure the slurry was not si...

example 3

[0047]A mixture was prepared by adding to 25 ml diesel, 0.5 ml MOC-A surfactant and 0.5 gram solid dimethyl (hydrogenated tallow) benzyl ammonium chloride available as ARQUAD DMHTB from AKZO Nobel Corporation. 50 grams MICROMATRIX cement was then added to the mixture with stirring. The resulting slurry was transferred to a beaker and beaker was filled with water in a gentle stream to ensure minimum mixing. The mixture was stored at room temperature for 3 days. The water was poured out and the set cement thickness was measured. The set cement crust was about 85% of the cement slurry volume with a small amount of unset cement slurry underneath the set cement crust. The results demonstrate that quaternized ammonium compounds containing a long chain alkyl group and a benzyl group can function as effective WIES compounds.

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): E21B33/13
CPCC04B28/02C09K8/34C09K8/424C09K8/426C09K8/428C09K8/46C09K8/502Y02W30/91C04B14/06C04B14/106C04B14/14C04B18/08C04B18/141C04B40/06C04B2103/40
Inventor REDDY, B. RAGHAVAEOFF, LARRY S.PASCARELLA, NATALIE
Owner HALLIBURTON ENERGY SERVICES INC
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