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Title: Method for improving sustained solids-free production from heavy oil reservoirs

Abstract

This patent describes a method for producing viscous substantially solids-free hydrocarbonaceous fluids from an unconsolidated formation or reservoir. It includes drilling into the reservoir first and second spaced apart wells into a lower productive interval of the formation; perforating both wells in the lower productive interval; fracturing hydraulically the wells at the productive interval with a viscous fracturing fluid containing a propant therein so as to prop a created fracture and form a fines screen; injecting a pre-determined volume of steam into the first well in an amount sufficient to soften the viscous fluid and lower the viscosity of the fluid adjacent a fracture face; producing the first well at a rate sufficient to allow formation fines to build up on a fracture face communicating with the first well thereby resulting in a filter screen sufficient to substantially remove formation fines from the hydrocarbonaceous fluids; shutting in the first well while injecting steam in a predetermined amount in the second well; shutting in the second well.

Inventors:
;
Publication Date:
OSTI Identifier:
5795954
Patent Number(s):
US 5036918; A
Application Number:
PPN: US 7-446834
Assignee:
Mobil Oil Corp., Fairfax, VA (USA)
Resource Type:
Patent
Resource Relation:
Patent File Date: 6 Dec 1989
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; 04 OIL SHALES AND TAR SANDS; INJECTION WELLS; STEAM INJECTION; PETROLEUM; VISCOSITY; RESERVOIR ROCK; HYDRAULIC FRACTURING; CARBONACEOUS MATERIALS; ENHANCED RECOVERY; FRACTURING FLUIDS; HYDROCARBONS; OIL WELLS; WELL DRILLING; WELL SPACING; DRILLING; ENERGY SOURCES; FLUID INJECTION; FLUIDS; FOSSIL FUELS; FRACTURING; FUELS; MATERIALS; ORGANIC COMPOUNDS; RECOVERY; WELLS; 020300* - Petroleum- Drilling & Production; 040401 - Oil Shales & Tar Sands- In Situ Methods, True & Modified

Citation Formats

Jennings, A R, and Smith, R C. Method for improving sustained solids-free production from heavy oil reservoirs. United States: N. p., 1991. Web.
Jennings, A R, & Smith, R C. Method for improving sustained solids-free production from heavy oil reservoirs. United States.
Jennings, A R, and Smith, R C. 1991. "Method for improving sustained solids-free production from heavy oil reservoirs". United States.
@article{osti_5795954,
title = {Method for improving sustained solids-free production from heavy oil reservoirs},
author = {Jennings, A R and Smith, R C},
abstractNote = {This patent describes a method for producing viscous substantially solids-free hydrocarbonaceous fluids from an unconsolidated formation or reservoir. It includes drilling into the reservoir first and second spaced apart wells into a lower productive interval of the formation; perforating both wells in the lower productive interval; fracturing hydraulically the wells at the productive interval with a viscous fracturing fluid containing a propant therein so as to prop a created fracture and form a fines screen; injecting a pre-determined volume of steam into the first well in an amount sufficient to soften the viscous fluid and lower the viscosity of the fluid adjacent a fracture face; producing the first well at a rate sufficient to allow formation fines to build up on a fracture face communicating with the first well thereby resulting in a filter screen sufficient to substantially remove formation fines from the hydrocarbonaceous fluids; shutting in the first well while injecting steam in a predetermined amount in the second well; shutting in the second well.},
doi = {},
url = {https://www.osti.gov/biblio/5795954}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 06 00:00:00 EDT 1991},
month = {Tue Aug 06 00:00:00 EDT 1991}
}