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Open hole packer for alternative path gravel pack and method of completing an open hole wellbore

A packer, gravel packing technology used in sealing/packing, wellbore/well components, earthmoving, etc.

Active Publication Date: 2015-09-09
EXXONMOBIL UPSTREAM RES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] There are some technical challenges regarding the methods disclosed in the relevant PCT publications, especially with regard to packers

Method used

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  • Open hole packer for alternative path gravel pack and method of completing an open hole wellbore
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  • Open hole packer for alternative path gravel pack and method of completing an open hole wellbore

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[0044] definition

[0045] As used herein, the term "hydrocarbon" refers to an organic compound consisting essentially, but not exclusively, of the elements carbon and hydrogen. Hydrocarbons are generally divided into two broad categories: aliphatic or straight-chain hydrocarbons, and cyclic or closed-ring hydrocarbons, including cyclic terpenes. Examples of hydrocarbon-containing materials include any form of natural gas, petroleum, coal, and bitumen that can be used as fuel or upgraded into a fuel.

[0046] As used herein, the term "hydrocarbon fluid" refers to a gaseous or liquid hydrocarbon or mixture of hydrocarbons.

[0047] Hydrocarbon fluids may include hydrocarbons or mixtures of hydrocarbons that are gases or liquids at formation conditions, at process conditions, or at ambient conditions (15°C and 1 atmosphere). Hydrocarbon fluids may include, for example, petroleum, natural gas, coal bed methane, shale oil, pyrolysis oil, pyrolysis gas, cracking products of coa...

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PUM

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Abstract

Zonal isolation apparatus includes at least one packer assembly and can be used in completing an open-hole portion of a wellbore, which open-hole portion extends through at least two subsurface intervals. The zonal isolation apparatus includes base pipe and filter medium, which together form a sand screen. Each packer assembly comprises at least two mechanically set packer elements. Intermediate the at least two mechanically set packer elements is at least one swellable packer element. The swellable packer element is actuated over time in the presence of a fluid such as water, oil, or a chemical. Swelling may occur should one of the mechanically set packer elements fail. The zonal isolation apparatus also includes alternate flow channel(s) that serve to divert gravel pack slurry from an upper interval to lower intervals during gravel packing operations. A method for completing a wellbore using the zonal isolation apparatus is also provided herein.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Patent Application No. 61 / 263120, filed November 20, 2009. technical field [0003] This disclosure relates to the field of well completion / completions. In particular, the present invention relates to formation isolation in combination with gravel packs in completed wellbores. Background technique [0004] This section is intended to introduce various aspects of technology in the art related to the exemplary embodiments of the present disclosure. It is believed that this discussion helps to provide a framework for better understanding specific aspects of the disclosure. Accordingly, it should be understood that this section should be read in this light, and not necessarily as admissions of prior art. [0005] In the drilling of oil and gas wells, a drill bit is advanced down at the lower end of a drill tool to form a wellbore. After drilling to a predetermined d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B33/12
CPCE21B33/124E21B33/10E21B33/1208E21B43/04
Inventor D·C·海伯勒M·D·巴里M·T·赫克
Owner EXXONMOBIL UPSTREAM RES CO