Completions Science

Completions and Workovers

Science Principles

Read the articles below for some of the latest technical and theoretical developments relating to heavy oil.

HGP (Hydraulic Gas Pump) applications in SAGD (Steam Assisted Gravity Drainage) production

Workover Strategies in CHOPS Wells, by Maurice Dusseault, Kirby Hayes, Michael Kremer, and Chris Wallin
A Paper which considers the question of how to compare workover methods and decide on the one that is most appropriate

	For the earlier version of this paper - click here
	For a PowerPoint Presentation discussing various workover methods related to CHOP - includes detailed strategy for comparison of methods given unique situations of various wells - click here
	For a .pdf file which summarizes some common workover methods. Click here

Perforating for Heavy Oil Cold Production In North West Saskatchewan and North East Alberta, Canada;
by Kirby Hayes

Rehabilitating Heavy Oil Wells Using Pulsing Workovers to Place Treatment Chemicals (pdf file)
by Maurice Dusseault, PRISM Production Technologies Inc.; Cedric Gall, Petrovera Inc.; Darrell Shand and Brett Davidson, PRISM Production Technologies Inc.; and Kirby Hayes, Kirby Hayes Inc.

CSE – An Emerging Alternative - article by Franklin Foster, Ph.D

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The articles above are about leading edge, current practices. Below is a diagram of an approach in "the old days" when sand was strictly an enemy. Sand was washed up the tubing while fluid was pumped down the casing-tubing in this once common sand removal technique

sandflushup.gif (19167 bytes)

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