US4404112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon foams as well stimulants
Assignee: Baker Petrolite LLC
•
Filing: 1981-07-08
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Granted: 1983-09-13
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Expires: 2001-07-08
Abstract
Abstract This invention relates to the use of silicone-induced hydrocarbon foams as well stimulants, for example as illustrated by their use in fracturing well formations, removal of paraffin in wells, removal of condensate hydrocarbons from blocked gas wells, etc.
Inventors
- 👤 Gary A. Scherubel
- 👤 Michael A. Thorne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:42
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/92; C09K8/94; C09K8/52; C09K8/524; C09K8/62; C09K8/70; C09K8/703; E; E21; E21B; E21B21/00; E21B21/14; E21B43/00; E21B43/25; E21B43/26; E21B43/267; Y; Y10; Y10S; Y10S507/00; Y10S507/927; Y10S507/929; Y10S507/931; Y10S516/00; Y10S516/905; Y10S516/906
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
83 words
A composition consisting essentially of an organo-polysiloxane-induced hydrocarbon foam mixture, suitable for use in well stimulation, said hydrocarbon being selected from the group consisting of kerosene, #2 diesel oil, well formation condensate and xylene, said siloxane having the formula ##STR5## where organo is alkyl and where n has a value sufficient to define a polymer having a molecular weight of from about 5,770 to about 20,000, and being of a concentration of from about 0.5 to about 2% by volume in said hydrocarbon.
Claim 2
Dependent Claim
83 words
A composition consisting essentially of an organo-polysiloxane-induced hydrocarbon foam mixture, suitable for use in well stimulation, said hydrocarbon being selected from the group consisting of kerosene, #2 diesel oil, well formation condensate and xylene, said siloxane having the formula ##STR5## where organo is alkyl and where n has a value sufficient to define a polymer having a molecular weight of from about 5,770 to about 20,000, and being of a concentration of from about 0.5 to about 2% by volume in said hydrocarbon.
Claim 3
Dependent Claim
9 words
The composition of claim 1 which also includes nitrogen.
Claim 4
Dependent Claim
12 words
The composition of claim 2 wherein the hydrocarbon is #2 diesel oil.
Claim 5
Dependent Claim
10 words
The composition of claim 2 wherein the hydrocarbon is xylene.
References Cited (Backward Citations)
CA659810A
Cited
US3136361A
Cited
US3215643A
Cited
US3770648A
Cited
US3980136A
Cited
US3937283A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-09-12 | 1987-03-14 | 1987-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-12 | 1991-03-14 | 1991-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-12 | 1995-03-14 | 1995-09-13 | $7700.00 | Window Closed / Lapsed |