CA2240786A1 - Viscous oil recovery using steam in horizontal well - Google Patents

Viscous oil recovery using steam in horizontal well

Info

Publication number
CA2240786A1
CA2240786A1 CA 2240786 CA2240786A CA2240786A1 CA 2240786 A1 CA2240786 A1 CA 2240786A1 CA 2240786 CA2240786 CA 2240786 CA 2240786 A CA2240786 A CA 2240786A CA 2240786 A1 CA2240786 A1 CA 2240786A1
Authority
CA
Canada
Prior art keywords
steam
formation
production
horizontal section
viscous oil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2240786
Other languages
French (fr)
Other versions
CA2240786C (en
Inventor
Robert P. Lesage
Mehmet Saltuklaroglu
Hong Sheh Lu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ExxonMobil Oil Corp
Original Assignee
Mobil Oil Corporation
Robert P. Lesage
Mehmet Saltuklaroglu
Hong Sheh Lu
Exxonmobil Oil Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/881,020 external-priority patent/US5931230A/en
Application filed by Mobil Oil Corporation, Robert P. Lesage, Mehmet Saltuklaroglu, Hong Sheh Lu, Exxonmobil Oil Corporation filed Critical Mobil Oil Corporation
Publication of CA2240786A1 publication Critical patent/CA2240786A1/en
Application granted granted Critical
Publication of CA2240786C publication Critical patent/CA2240786C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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.
CA 2240786 1997-06-23 1998-06-16 Viscous oil recovery using steam in horizontal well Expired - Lifetime CA2240786C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/881,020 US5931230A (en) 1996-02-20 1997-06-23 Visicous oil recovery using steam in horizontal well
US08/881,020 1997-06-23

Publications (2)

Publication Number Publication Date
CA2240786A1 true CA2240786A1 (en) 1998-12-23
CA2240786C CA2240786C (en) 2006-06-13

Family

ID=25377613

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2240786 Expired - Lifetime CA2240786C (en) 1997-06-23 1998-06-16 Viscous oil recovery using steam in horizontal well

Country Status (1)

Country Link
CA (1) CA2240786C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8905132B2 (en) 2011-08-05 2014-12-09 Fccl Partnership Establishing communication between well pairs in oil sands by dilation with steam or water circulation at elevated pressures
CN113669037A (en) * 2020-05-13 2021-11-19 中国石油化工股份有限公司 Step design method for multi-element directional viscosity reduction after multiple times of huffing and puff of thick oil

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8905132B2 (en) 2011-08-05 2014-12-09 Fccl Partnership Establishing communication between well pairs in oil sands by dilation with steam or water circulation at elevated pressures
CN113669037A (en) * 2020-05-13 2021-11-19 中国石油化工股份有限公司 Step design method for multi-element directional viscosity reduction after multiple times of huffing and puff of thick oil
CN113669037B (en) * 2020-05-13 2023-04-07 中国石油化工股份有限公司 Step design method for multi-element directional viscosity reduction after multiple times of huffing and puff of thick oil

Also Published As

Publication number Publication date
CA2240786C (en) 2006-06-13

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EEER Examination request
MKEX Expiry

Effective date: 20180618