Remember me | Forgot password
For full content view: Log in Now!
Horizontal wells have been used in recent years to develop oil and gas fields more efficiently than conventional vertical wells. The significant difference in drainage patterns of horizontal wells, when compared with vertical wells, makes it critical that the formation have a certain, minimum vertical permeability for these wells to be productive. In cases where vertical permeability is very low, horizontal wells can lose their attraction because of poor vertical communication. To overcome this disadvantage, a horizontal well can be designed with some undulations in the well trajectory, which will avoid direct dependency on vertical permeability. In addition, this will further increase contact between the well and formation. But, as undulations are added to a wellbore, its hydrodynamics become more complicated, and the effects of wellbore flow may jeopardize productivity. The wellbore trajectory, and effects on productivity and flow, should be studied carefully when designing an undulating well.
This area of the site is restricted.
In order to gain access, please either Log
In, or subscribe to World Oil.
Two options are available to you for creating an account.
1. Get a Free Trial Subscription to World Oil Magazine and gain immediate access to select content on World Oil Online.
Start a Free Trial Subscription and gain immediate access to the complete current issue of World Oil Magazine. Plus, you’ll receive 3 upcoming issues of World Oil Magazine in print or digital format.* You also receive access to the Energy Events Calendar, Industry Statistics and WO Wire’s news and industry coverage.
2. Purchase a subscription to World Oil magazine and gain immediate
and complete access to World Oil Online. As a Total Access subscriber
you will have access to all areas of the site available to registered users and
free subscribers as well as having access to such premium content areas as:
Physical copies of this content may be available for purchase. Visit the Reprints & Back Issues section.
If you are already a paid subscriber and do not have access, please email CustomerService@worldoil.com.
World Oil's specialized upstream Engineering Data Tables featuring the Drill Bit Classifier, Tubing Tables and more. Get Total Access today.
Doha - January 20-22
Cancun - January 27-29
Oslo - January 28-29
All material subject to strictly enforced copyright laws.
© 2013 World Oil. © 2013 Gulf Publishing Company.