Method for suspending wells

Patent · Tue Apr 04 00:00:00 EDT 1989

OSTI ID:5991483

Jennings, Jr, A R

A method is described for shutting in a well which minimizes formation damage comprising: (a) placing into the formation a liquid solution sufficient to establish fluid flow into the formation which solution also minimizes fluid retention; (b) pumping a pumpable solidifiable gel mixture into the productive interval of a formation via a wellbore; (c) causing the gel mixture to become a solid thereby forming a gel plug within the wellbore and a formation gel within the formation sufficient to withstand environmental formation conditions and pressures which cause hydrocarbonaceous fluids to flow into the wellbore from the formation areas near the wellbore; (d) placing in the wellbore on top of the plug an amount of cement sufficient to isolate the productive interval when the cement hardens while being supported by the plug; and (e) allowing the cement to set which set cement in combination with the gel plug is competent to exclude production fluids from the wellbore.

• Assignee: Mobil Oil Corp., New York, NY
• Patent Number(s): US 4817719
• OSTI ID: 5991483
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030900 -- Natural Gas-- Artificial Stimulation
Plowshare-- (-1989)
CEMENTING
COLLOIDS
DISPERSIONS
FORMATION DAMAGE
GELATION
GELS
NATURAL GAS WELLS
OIL WELLS
PLUGGING
PLUGGING AGENTS
PUMPING
STIMULATION
WELL COMPLETION
WELL STIMULATION
WELLS