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Polyurethane Foamed Annular Chemical Packer

a technology of polyurethane foam and chemical packer, which is applied in the direction of sealing/packing, wellbore/well accessories, ceramics, etc., can solve the problems of difficult selective placement of packers to shut off water production from the water producing zone in proximity to the screen, and may be difficult to place packers in the well

Inactive Publication Date: 2020-02-27
SAUDI ARABIAN OIL CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the placement of packers in a well may be challenging, in addition to the challenges of the use and placement of such packers with other completion devices and horizontal or deviated wells.
In these instances, the selective placement of a packer to shut-off water production from the water producing zone in proximity to the screen may be challenging.

Method used

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  • Polyurethane Foamed Annular Chemical Packer
  • Polyurethane Foamed Annular Chemical Packer
  • Polyurethane Foamed Annular Chemical Packer

Examples

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examples

[0050]The following examples are included to demonstrate embodiments of the disclosure. It should be appreciated by those of skill in the art that the techniques and compositions disclosed in the example which follows represents techniques and compositions discovered to function well in the practice of the disclosure, and thus can be considered to constitute modes for its practice. However, those of skill in the art should, in light of the present disclosure, appreciate that many changes can be made in the specific embodiments which are disclosed and still obtain a like or a similar result without departing from the spirit and scope of the disclosure.

[0051]Experiments were conducted using a multipurpose polyurethane foam typically used for sealing air-conditioning ducts. Each experiment used a 60 millimeters (ml) plastic syringe having a plastic cylinder with an inner diameter of about 25 mm. In one experiment, the polyurethane foam was placed in the plastic cylinder and a cylindric...

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Abstract

A chemical packer composition having a polyurethane foam with nanoparticles or micron-sized particles for use as an annular chemical packer in openhole horizontal wells is provided. The chemical packer composition may be used in a horizontal well having a screen (for example, a gravel pack screen) and completed using an openhole completion. The chemical packer composition may include, for example, silica nanoparticles or sand micron-sized particles. The chemical packer composition may be placed in an annulus section defined by the wellbore and the screen that traverses one or more fluid producing zones. In some instances, a portion of the chemical packer composition may be selectively removed to open a fluid producing zone to the wellbore and form plugs blocking other fluid producing zones.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a divisional of and claims priority from U.S. Provisional application Ser. No. 15 / 792,317 filed Oct. 24, 2017, and titled “POLYURETHANE FOAMED ANNULAR CHEMICAL PACKER,” which claims priority from U.S. Provisional Application No. 62 / 484,576 filed Apr. 12, 2017, and titled “POLYURETHANE FOAMED ANNULAR CHEMICAL PACKER,” each of which are incorporated by reference in their entirety for purposes of United States patent practice.BACKGROUNDField of the Disclosure[0002]The present disclosure generally relates to completion of oil and gas wells. More specifically, embodiments of the disclosure relate to packers for use in completion operations.Description of the Related Art[0003]In the recovery of hydrocarbons from subterranean formations, wellbores may be drilled with multiple highly deviated or horizontal segments that extend through separate zones. For example, a horizontal well may extend through multiple hydrocarbon produc...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): E21B33/138E21B43/04C04B26/16C09K8/44C09K8/518
CPCC04B26/16C09K8/44E21B43/045C09K8/518E21B33/138E21B43/04C04B14/06C04B20/008C04B38/00
Inventor KARADKAR, PRASAD BABURAOBATAWEEL, MOHAMMED
Owner SAUDI ARABIAN OIL CO