US3802501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning apparatus for oil well production
Assignee: Kobe Inc
•
Filing: 1973-06-22
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Granted: 1974-04-09
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Expires: 1993-06-22
Abstract
Abstract An apparatus for processing production fluid from an oil well in the field to obtain clean power oil for a fluid operated pump in the well. The apparatus is intended to service a single well, or at most a few wells, and includes components, including a tanktype separator, for removing solids, gas and water from the production fluid to obtain the clean power oil, which is pressurized by a triplex pump and delivered to the fluid operated pump in the well. The apparatus also includes a tank, either a separate storage tank, or a large separator tank, containing a sufficient reserve of power oil for running the fluid operated pump into and out of the well. A circulating pump having a capacity at least about twice that of the triplex pump continuously circulates the oil to be cleaned through one or more cyclones which continuously remove any solids. If desired, this apparatus can be used to furnish clean power water to the triplex, instead of oil.
Inventors
- 👤 M Mecusker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:46
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/34; E21B43/35; B; B01; B01D; B01D17/00; B01D17/02; B01D17/0217; B03; B03B; B03B7/00; B04; B04C; B04C9/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
209 words
An apparatus for processing production fluid from an oil well in the field to obtain clean power liquid for a liquid operated pump in the well, including: a. a production fluid inlet for production fluid from the well; b. a production fluid outlet connectible to a point of production fluid disposal; c. a power liquid outlet connectible to the liquid operated pump in the well; d. a separator connected to said production fluid inlet, said separator having at the top and bottom thereof upper and lower outlets connected to said production fluid outlet and having an intermediate outlet; e. a cyclone having a liquid inlet and a liquid outlet and having a solids outlet, the latter being connected to said production fluid outlet; f. a circulating pump having an inlet connected to said intermediate outlet of said separator, and having an outlet connected to said liquid inlet of said cyclone; g. a triplex pump having an inlet connected to said liquid outlet of said cyclone, and having an outlet connected to said power liquid outlet; h. said circulating pump having a capacity in excess of that of said triplex pump; and i. a bypass from said liquid outlet of said cyclone back to said inlet of said circulating pump.
Claim 2
Independent Claim
209 words
An apparatus for processing production fluid from an oil well in the field to obtain clean power liquid for a liquid operated pump in the well, including: a. a production fluid inlet for production fluid from the well; b. a production fluid outlet connectible to a point of production fluid disposal; c. a power liquid outlet connectible to the liquid operated pump in the well; d. a separator connected to said production fluid inlet, said separator having at the top and bottom thereof upper and lower outlets connected to said production fluid outlet and having an intermediate outlet; e. a cyclone having a liquid inlet and a liquid outlet and having a solids outlet, the latter being connected to said production fluid outlet; f. a circulating pump having an inlet connected to said intermediate outlet of said separator, and having an outlet connected to said liquid inlet of said cyclone; g. a triplex pump having an inlet connected to said liquid outlet of said cyclone, and having an outlet connected to said power liquid outlet; h. said circulating pump having a capacity in excess of that of said triplex pump; and i. a bypass from said liquid outlet of said cyclone back to said inlet of said circulating pump.
Claim 3
Dependent Claim
12 words
An apparatus according to claim 1 wherein said bypass includes said separator.
Claim 4
Dependent Claim
27 words
An apparatus as defined in claim 1 wherein said bypass leads from said liquid outlet of said cyclone directly back to said inlet of said circulating pump.
Claim 5
Dependent Claim
15 words
An apparatus as set forth in claim 1 wherein said bypass includes a storage tank.
Claim 6
Dependent Claim
26 words
An apparatus according to claim 4 wherein said inlet of said circulating pump is connected to said intermediate outlet of said separator through said storage tank.
Claim 7
Dependent Claim
43 words
An apparatus as defined in claim 1 wherein there are upper and lower intermediate outlets in vertically spaced relation between said upper and lower outlets and respectively connected to said circulating pump inlet through parallel, upper, normally open, and lower, normally closed, valves.
Claim 8
Independent Claim
201 words
An apparatus for processing production fluid from an oil well in the field to obtain clean power liquid for a liquid operated pump in the well, including: a. a production fluid inlet for production fluid from the well; b. a production fluid outlet connectible to a point of production fluid disposal; c. a power liquid outlet connectible to the liquid operated pump in the well; d. a separator connected to said production fluid inlet, said separator having vertically spaced outlets connected to said production fluid outlet and having another outlet; e. a cyclone having a liquid inlet and a liquid outlet and having a solids outlet, the latter being connected to said production fluid outlet; f. a circulating pump having an inlet connected to said other outlet of said separator, and having an outlet connected to said liquid inlet of said cyclone; g. a triplex pump having an inlet connected to said liquid outlet of said cyclone, and having an outlet connected to said power liquid outlet; h. said circulating pump having a capacity in excess of that of said triplex pump; and i. a bypass from said liquid outlet of said cyclone back to said inlet of said circulating pump.
Claim 9
Independent Claim
201 words
An apparatus for processing production fluid from an oil well in the field to obtain clean power liquid for a liquid operated pump in the well, including: a. a production fluid inlet for production fluid from the well; b. a production fluid outlet connectible to a point of production fluid disposal; c. a power liquid outlet connectible to the liquid operated pump in the well; d. a separator connected to said production fluid inlet, said separator having vertically spaced outlets connected to said production fluid outlet and having another outlet; e. a cyclone having a liquid inlet and a liquid outlet and having a solids outlet, the latter being connected to said production fluid outlet; f. a circulating pump having an inlet connected to said other outlet of said separator, and having an outlet connected to said liquid inlet of said cyclone; g. a triplex pump having an inlet connected to said liquid outlet of said cyclone, and having an outlet connected to said power liquid outlet; h. said circulating pump having a capacity in excess of that of said triplex pump; and i. a bypass from said liquid outlet of said cyclone back to said inlet of said circulating pump.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-08 | 1977-10-08 | 1978-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-08 | 1981-10-08 | 1982-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-08 | 1985-10-08 | 1986-04-09 | $7700.00 | Window Closed / Lapsed |