Diverting technique to stage fracturing treatments in horizontal wellbores

Patent · Tue Aug 28 00:00:00 EDT 1990

OSTI ID:6405552

Jennings, Jr, A R

This patent describes a method for fracturing a formation containing a horizontal wellbore. It comprises perforating a horizontal wellbore at a desired first interval at a distance farthest from an angle of deviation from vertical of the wellbore thereby causing the wellbore to be in fluid communication with the formation; fracturing hydraulically the formation at the first interval; injecting a solidifiable gel containing a gel breaker into the wellbore witch enters the first interval; displacing with a wiper plug the solidifiable gel so as to force the solidifiable gel into the first interval and contain the gel in the wellbore in an area adjacent to the perforations; allowing the solidifiable gel to remain in the formation and in the wellbore for a time sufficient to form a solid gel in the first interval and a solid gel plug in the wellbore which precludes fluid entry into the wellbore adjacent the first interval; while the solid gel plug remains in the wellbore, perforating another section of the wellbore so as to cause fluid communication between a second interval of the formation and the wellbore; and fracturing hydraulically the formation through perforations so as to cause a second interval to be in fluid communication with the wellbore.

• Assignee: Mobil Oil Corp., New York, NY (USA)
• Patent Number(s): US 4951751; A
• Application Number: PPN: US s 7-379757
• OSTI ID: 6405552
• Resource Relation: Patent File Date: 14 Jul 1989
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
NATURAL GAS WELLS
HYDRAULIC FRACTURING
OIL WELLS
ENHANCED RECOVERY
FRACTURING FLUIDS
GELS
INCLINATION
WELL STIMULATION
COLLOIDS
COMMINUTION
DISPERSIONS
FLUIDS
FRACTURING
RECOVERY
STIMULATION
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing