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Well servicing fluid containing compressed hydrocarbon gas

A carrier fluid, well workover technology, applied in the direction of production fluid, wellbore/well components, drilling composition, etc., can solve the problems of well production reduction, hydrocarbon permeability reduction, etc., and achieve the effect of reducing damage

Inactive Publication Date: 2016-06-29
BAKER HUGHES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Saturating a formation with water can lead to a reduction in hydrocarbon permeability, which in turn can lead to reduced production of the well

Method used

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  • Well servicing fluid containing compressed hydrocarbon gas
  • Well servicing fluid containing compressed hydrocarbon gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0050] The above compositions were tested using a friction loop tester. The tester consisted of a 10 foot long, 1 / 4 inch outer diameter and 0.173 inch inner tube fitted with a manometer to measure frictional pressure. A triplex pump connected to the inlet was used to pump fluid from the 4 L container into the 1 / 4 inch tubing through the inlet. The 1 / 4 inch tubing was set so that fluid flowed from the tubing into an inverted altar with 1 inch ID coiled tubing to reduce fluid velocity. The drain from the altar was returned to the 4L container to complete the circuit. A site glass is provided to observe fluid flow through the tester.

[0051] Using the Friction Loop Tester described above, the following general procedure was followed: Pour 4L of FRACSOL into a 4L container. The pump was turned on and fluid was circulated through the friction loop until no air bubbles were observed in the field glass. Take baseline friction pressure readings for the FRACSOL at 300-1500 rpm. T...

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Abstract

The present disclosure is directed to a method of servicing a well. The method comprises providing a well servicing fluid. The well servicing fluid is formulated with the following components comprising, at least one friction reducer chosen from polychloroprenes, vinyl acetate polymers, polyalkylene oxides, and polyalphaolefins; and a nonaqueous carrier fluid. The well servicing fluid is introduced into the well.

Description

[0001] relevant application data [0002] This application is a continuation-in-part of US Application No. 12 / 855,894, filed August 13, 2010, entitled Workover Fluids, which is hereby incorporated by reference. technical field [0003] The present invention generally relates to a method of well intervention using a fluid comprising a friction reducing agent and a non-aqueous carrier fluid. Background technique [0004] Natural resources such as gas and oil can be recovered from subterranean formations using well known techniques. Methods of preparing wellbores to recover these resources often employ a variety of wellbore intervention fluids. One example of these fluids is a hydraulic fracturing fluid, or "fracturing fluid." [0005] Fracturing fluids are used in hydraulic fracturing, a common stimulation technique used to increase the production of fluids from subterranean formations in, for example, oil wells, gas wells, coalbed methane wells, and geothermal wells. In a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/02C09K8/52E21B43/22
CPCC09K8/82C09K8/64C09K2208/28
Inventor D·V·S·古普塔H·S·丁萨R·C·普拉希尔
Owner BAKER HUGHES INC
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