WO2006042338A3 - Apparatus and method for increasing well production - Google Patents

Apparatus and method for increasing well production Download PDF

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Publication number
WO2006042338A3
WO2006042338A3 PCT/US2005/038164 US2005038164W WO2006042338A3 WO 2006042338 A3 WO2006042338 A3 WO 2006042338A3 US 2005038164 W US2005038164 W US 2005038164W WO 2006042338 A3 WO2006042338 A3 WO 2006042338A3
Authority
WO
WIPO (PCT)
Prior art keywords
surfactant
well
production tube
formation
check valve
Prior art date
Application number
PCT/US2005/038164
Other languages
French (fr)
Other versions
WO2006042338A2 (en
Inventor
Greg Allen Conrad
Original Assignee
Greg Allen Conrad
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=36144115&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2006042338(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Greg Allen Conrad filed Critical Greg Allen Conrad
Publication of WO2006042338A2 publication Critical patent/WO2006042338A2/en
Publication of WO2006042338A3 publication Critical patent/WO2006042338A3/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/006—Production of coal-bed methane
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/25—Methods for stimulating production

Abstract

An apparatus and method for injecting surfactant into a well for coal bed methane (CBM) recovery, tight sand gas extraction, and other gas extraction techniques provides for the mixing of surfactant and water near the downhole end of the well, maximizing water removal for gas recovery. The apparatus may include a check valve that feeds a nozzle to atomize the spray of surfactant into the well production tube. Surfactant is not sprayed directly into the formation, thereby protecting the formation from damage and recovering surfactant even in the case where water is not present. The capillary tube feeding surfactant to the check valve may be placed externally to the production tube to facilitate ease of cleaning and clearing of the production tube.
PCT/US2005/038164 2004-10-12 2005-10-12 Apparatus and method for increasing well production WO2006042338A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US61783704P 2004-10-12 2004-10-12
US60/617,837 2004-10-12
US10/905,993 2005-01-28
US10/905,993 US7311144B2 (en) 2004-10-12 2005-01-28 Apparatus and method for increasing well production using surfactant injection

Publications (2)

Publication Number Publication Date
WO2006042338A2 WO2006042338A2 (en) 2006-04-20
WO2006042338A3 true WO2006042338A3 (en) 2007-01-18

Family

ID=36144115

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/038164 WO2006042338A2 (en) 2004-10-12 2005-10-12 Apparatus and method for increasing well production

Country Status (2)

Country Link
US (3) US7311144B2 (en)
WO (1) WO2006042338A2 (en)

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Publication number Priority date Publication date Assignee Title
CN110107269A (en) * 2019-03-29 2019-08-09 中国石油化工股份有限公司 Mist generating device and its working method

Also Published As

Publication number Publication date
US8695706B2 (en) 2014-04-15
US7909101B2 (en) 2011-03-22
US7311144B2 (en) 2007-12-25
US20080066919A1 (en) 2008-03-20
US20120061089A1 (en) 2012-03-15
US20060076139A1 (en) 2006-04-13
WO2006042338A2 (en) 2006-04-20

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