Patent US314546A successfully refreshed from Google Patents.
Patent US4411801A successfully refreshed from Google Patents.
US4411801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low solids well servicing fluids
Assignee: Baroid Technology Inc
•
Filing: 1981-09-17
•
Granted: 1983-10-25
•
Expires: 2001-09-17
Abstract
Abstract An emulsifying composition for preparing low solids drilling fluids containing a mixture of polyoxyethylene glycol 500 mono-tallate, nonyl phenol ethoxylate containing approximately 43% by weight of oxyethylene groups and nonyl phenol ethoxylate containing approximately 65% by weight of oxyethylene groups; a well servicing fluid comprising an aqueous medium, a liquid hydrocarbon coating agent and an emulsifying amount of the emulsifying compositions; and a method of servicing a well during drilling, fracturing and completing operations.
Inventors
- 👤 Daniel G. Pomerleau
- 👤 Douglas E. Slocombe
- 👤 Kenneth H. Watts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:04
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/62; C09K8/64; C09K8/02; C09K8/04; C09K8/26; Y; Y10; Y10S; Y10S507/00; Y10S507/922; Y10S507/925; Y10S516/00; Y10S516/01; Y10S516/06
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
50 words
An emuslifying composition comprised of a mixture of approximately equal amounts of (a) polyoxyethylene glycol 500 monotallate, (b) nonyl phenol ethoxylate containing approximately 43% by weight of oxyethylene groups and (c) nonyl phenol ethoxylate containing approximately 65% by weight of oxyethylene groups, for use in preparing low solids drilling fluids.
Claim 2
Dependent Claim
50 words
An emuslifying composition comprised of a mixture of approximately equal amounts of (a) polyoxyethylene glycol 500 monotallate, (b) nonyl phenol ethoxylate containing approximately 43% by weight of oxyethylene groups and (c) nonyl phenol ethoxylate containing approximately 65% by weight of oxyethylene groups, for use in preparing low solids drilling fluids.
Claim 3
Dependent Claim
41 words
A low solids oil-in-water emulsion well servicing fluid, substantially free of added clay-type viscosifying agents, comprising an aqueous medium, at least 5% by volume of a liquid hydrocarbon coating agent and an emulsifying amount of the emulsifying composition of claim 1.
Claim 4
Dependent Claim
14 words
The well servicing fluid of claim 2 wherein said aqueous medium comprises of brine.
Claim 5
Dependent Claim
15 words
The well servicing fluid of claim 3 wherein said brine comprises a potassium chloride solution.
Claim 6
Dependent Claim
14 words
The well servicing fluid of claim 2 wherein said coating agent comprises diesel oil.
Claim 7
Dependent Claim
15 words
The well servicing fluid of claim 2 wherein said coating agent comprises light crude oil.
Claim 8
Dependent Claim
23 words
The well servicing fluid of claim 2 wherein said coating agent is present in an amount of from about 5 to about 35%.
Claim 9
Dependent Claim
25 words
The well servicing fluid of claim 2 wherein said emulsifying agent is present in an amount of from about 0.1 to about 3% by volume.
Claim 10
Dependent Claim
31 words
In a method of servicing an earth borehole during drilling, fracturing and completing operations, the step comprising circulating in said borehole during said servicing the well servicing fluid of claim 2.
Claim 11
Dependent Claim
12 words
The method of claim 9 wheein said aqueous medium comprises a brine.
Claim 12
Dependent Claim
13 words
The method of claim 10 wherein said brine comprises a potassium chloride solution.
Claim 13
Dependent Claim
12 words
The method of claim 9 wherein said coating agent comprises diesel oil.
Claim 14
Dependent Claim
13 words
The method of claim 9 wherein said coating agent comprises light crude oil.
Claim 15
Dependent Claim
21 words
The method of claim 9 wherein said coating agent is present in an amount of from about 5 to about 35%.
Claim 16
Dependent Claim
23 words
The method of claim 9 wherein said emulsifying agent is present in an amount of from about 0.1 to about 3% by volume.
Claim 17
Dependent Claim
15 words
The well servicing fluid of claim 2 wherein said coating agent contains primarily aliphatic hydrocarbons.
Claim 18
Dependent Claim
13 words
The method of claim 9 wherein said coating agent contains primarily aliphatic hydrocarbons.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-10-24 | 1987-04-25 | 1987-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-24 | 1991-04-25 | 1991-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-24 | 1995-04-25 | 1995-10-25 | $7700.00 | Window Closed / Lapsed |