About This Item
- Full TextFull Text(subscription required)
- Pay-Per-View PurchasePay-Per-View
Purchase Options Explain
Share This Item
The AAPG/Datapages Combined Publications Database
A blowout after acidization of perforations at 10,800 ft (3,291 m) in limestone of the Cotton Valley Group (Upper Jurassic) in a field-extension well in Upshur County, in east Texas, gauged pressure in excess of 12,000 psi before equipment failure. The pressure dissipated rapidly and a 200-ft (60 m) offset well was normal for the field.
Cause of the unique high-pressure zone is unknown. Possibly the high pressure is relict from a time of deeper burial when such pressures were field-wide before uplift and migration. A local chamber or vault, sealed off, for example, by calcium carbonate, may have retained earlier pressures until its walls were dissolved by the acid treatment.
Pay-Per-View Purchase Options
The article is available through a document delivery service. Explain these Purchase Options.
|Protected Document: $10|
|Internal PDF Document: $14|
|Open PDF Document: $24|
Please login with your Member username and password.
Members of AAPG receive access to the full AAPG Bulletin Archives as part of their membership. For more information, contact the AAPG Membership Department at [email protected].