Visicous oil recovery using steam in horizontal well

Details Visicous oil recovery using steam in horizontal well Visicous oil recovery using steam in horizontal well

1997-06-23

1999-08-03

Dang, Hoang C.

Wells

Processes

Heating, cooling or insulating

166 50, E21B 4324

Patent

active

059312300

ABSTRACT:
A method for recovering viscous oil from a subterranean formation through a wellbore having a horizontal section into the formation. Steam is circulated through the horizontal section to initially heat the formation and to produce fluids to the surface. After the initial heating is complete, production is ceased while the injection of steam is continued to accumulate a slug of steam within and around the horizontal section. The well is then shut-in and the formation is allowed to "soak". Production is then resumed and steam is again continuously injected into the well when oil appears in the produced fluids. This cycle is repeated until the production of oil drops belows an acceptable rate.

REFERENCES:
patent: 4116275 (1978-09-01), Butler et al.
patent: 4344485 (1982-08-01), Butler
patent: 5141054 (1992-08-01), Alameddine et al.
patent: 5148869 (1992-09-01), Sanchez
patent: 5215146 (1993-06-01), Sanchez
patent: 5215149 (1993-06-01), Lu
patent: 5289881 (1994-03-01), Schuh
patent: 5411094 (1995-05-01), Northrop
patent: 5607018 (1997-03-01), Schuh
patent: 5626193 (1997-05-01), Nzekwu et al.
patent: 5655605 (1997-08-01), Matthews
patent: 5771973 (1998-06-01), Jensen et al.
"Steam Circulation in Horizontal Wellbores", D.A. Best et al; SPE/DOE 20203; Tulsa, OK Apr. 22-25, 1990.

Affiliated with

Also associated with

Rating

Visicous oil recovery using steam in horizontal well does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Visicous oil recovery using steam in horizontal well, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Visicous oil recovery using steam in horizontal well will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-840810