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Method for remediating a screen-out during well completion

A technology for sanding out and wellbore, applied in wellbore/well valve device, earthmoving, wellbore/well components, etc., can solve problems such as delay

Active Publication Date: 2017-05-31
EXXONMOBIL RESEARCHK & ENG CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in more traditional completions where single-zone stimulation or multiple perforation clusters are addressed at once, screenout may require replacement of completion equipment at the surface with considerable operational delay

Method used

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  • Method for remediating a screen-out during well completion
  • Method for remediating a screen-out during well completion
  • Method for remediating a screen-out during well completion

Examples

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[0079] definition

[0080] As used herein, the term "hydrocarbon" refers to an organic compound primarily including, but not limited to, the elements hydrogen and carbon. Hydrocarbons may also include other elements such as, but not limited to, halogens, metallic elements, nitrogen, oxygen, and / or sulfur. Hydrocarbons are generally divided into two classes: aliphatic or linear hydrocarbons; and cyclic or closed-ring hydrocarbons, including cyclic terpenes. Examples of hydrocarbonaceous materials include any form of natural gas, oil, coal, and bitumen that may be used or upgraded as fuel.

[0081] As used herein, the term "hydrocarbon fluid" refers to a hydrocarbon or mixture of hydrocarbons, either as a gas or a liquid. For example, hydrocarbon fluids may include hydrocarbons or mixtures of hydrocarbons as gases or liquids at formation conditions, at process conditions, or at ambient conditions (15°C to 20°C and 1 atmosphere pressure). Hydrocarbon fluids may include, for ex...

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Abstract

A method of completing a well involving remediating a condition of screen-out that has taken place along a zone of interest. The method includes forming a wellbore, and lining at least a lower portion of the wellbore with a string of production casing and placing a valve along the production casing, wherein the valve creates a removable barrier to fluid flow within the bore. The barrier is removed by moving the valve in the event of a screen-out. This overcomes the barrier to fluid flow, thereby exposing ports along the production casing to the subsurface formation at or below the valve. Additional pumping takes place to pump the slurry through the exposed ports, thereby remediating the condition of screen-out.

Description

[0001] Cross References to Related Applications [0002] This application claims U.S. Provisional Patent Application No. 62 / 059,517, entitled "Method For Remediating A Screen-Out During Well Completion," filed October 3, 2014 and U.S. Provisional Patent Application No. 62 / 116,084, filed February 13, 2015, entitled "Method For Remediating A Screen-Out During Well Completion" (Method For Remediating A Screen-Out During Well Completion) rights and interests, the entire content of the above application is incorporated herein by reference. This application is related to co-pending U.S. Patent Application No. 13 / 989,728, filed May 24, 2013, entitled "Autonomous Downhole Conveyance System," published as U.S. Patent Publication No. 2013 / 0248174 . This application also relates to the assembly and method for Multi-Zone Fracture Stimulation of a Reservoir Using Autonomous Tubular Units, filed on November 13, 2012, entitled "Assembly and Method for Multi-Zone Fracture Stimulation of a Res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B34/06E21B34/10E21B43/116E21B43/119E21B43/267
CPCE21B34/063E21B34/10E21B34/103E21B43/116E21B43/119E21B43/267
Inventor R·C·托尔曼T·I·莫罗T·G·贝尼什
Owner EXXONMOBIL RESEARCHK & ENG CO