Process to improve extraction of crude oil and installation implementing such process
AssigneeMajus
InventorPhilippe Marchal
Life of this patent
Estimating the term…
Abstract
A hydrocarbon extraction process enabling an acceleration in the production of the productive zone of the oil deposit of a well and an increase in the cumulated quantity of hydrocarbons, characterized by the fact that a hot fluid constituted of hydrocarbons is made to circulate so as to bring the productive zone locally to a higher temperature by conduction in order to fluidify the hydrocarbons imprisoned in an underground reservoir, by means of a thermally-insulated pipe, the hot fluid being mixed with the hydrocarbons extracted via a liner or drain in the productive zone such mixture thus formed being recovered at the surface by means of an pumping pipe.
Claims41
A hydrocarbon extraction process enabling an acceleration in the production of the productive zone of the oil deposit of a well and an increase in the cumulated quantity of hydrocarbons, wherein a hot fluid comprising liquid hydrocarbons is made to circulate so as to bring said productive zone locally to a higher temperature by conduction in order to fluidify the hydrocarbons imprisoned in an underground reservoir, by means of a thermally-insulated pipe, said hot fluid being mixed with the hydrocarbons extracted via a liner or drain in said productive zone such mixture thus formed being recovered at the surface by means of a pumping pipe;
- wherein the production is such that the arrival of frigories via the hydrocarbons extracted from said reservoir is less than the quantity of heat diffused mostly by conduction in the reservoir and whose flow is maintained at less than 3 barrels per day and per linear meter of drain or liner.
A hydrocarbon extraction installation using a bore hole linking the surface to an oil deposit, comprising:
- a substantially cylindrical casing consolidating said bore hole and a pumping pipe housed inside said casing, said casing being extended by a liner or drain,
- a boiler to produce hot fluid constituted by hydrocarbons,
- a thermally insulated pipe connecting said boiler to said oil deposit enabling hot fluid to circulate from the surface to said liner to obtain a fluid mixture constituted by the hot fluid and hydrocarbons coming from said oil deposit, wherein:
- said thermally insulated pipe is inserted in a space available between said casing and said pumping pipe, and
- said thermally insulated pipe is constituted by a first inner pipe surrounded by a second external concentric pipe and an insulator housed in the space between said first and second inner pipes;
- and
- a recovery unit for the fluid mixture by means of said pumping pipe.
A hydrocarbon extraction process enabling an acceleration in the production of the productive zone of the oil deposit of a well and an increase in the cumulated quantity of hydrocarbons, wherein a hot fluid constituted of hydrocarbons is made to circulate within a liner or drain, and maintained substantially within the liner or drain, so as to bring said productive zone locally to a higher temperature by conduction in order to fluidify the hydrocarbons imprisoned in an underground reservoir, by means of a thermally-insulated pipe, said hot fluid being mixed with the hydrocarbons within the liner or drain in said productive zone such mixture thus formed being recovered at the surface by means of a pumping pipe.
A hydrocarbon extraction installation using a bore hole linking the surface to an oil deposit, comprising:
- a substantially cylindrical casing consolidating said bore hole and a pumping pipe housed inside said casing, said casing being extended by a liner or drain,
- a boiler to produce hot fluid constituted by hydrocarbons,
- a thermally insulated pipe connecting said boiler to said oil deposit enabling hot fluid to circulate from the surface to said liner to obtain a fluid mixture constituted by the hot fluid and hydrocarbons coming from said oil deposit, wherein:
- said thermally insulated pipe is inserted in said pumping pipe, and
- said thermally insulated pipe is constituted by a first inner pipe surrounded by a second external concentric pipe and an insulator housed in the space between said first and second inner pipes;
- and
- a recovery unit for the fluid mixture by means of said pumping pipe.
Dependencies are inferred from the claim text.