Patent US2051986A successfully refreshed from Google Patents.
Patent EP0964059A2 successfully refreshed from Google Patents.
US3662822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing a benthonic well
Assignee: Atlantic Richfield Co
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Filing: 1969-05-12
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Granted: 1972-05-16
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Expires: 1989-05-12
Abstract
Abstract This invention relates to a method for production of oil and gas from an underwater formation with a remotely controllable production head positioned proximate the ocean floor. According to the method described, an apertured landing base is installed at the formation and a well casing attached to the lower end of the production head is lowered through the base into the well and landed on the base. Production tubing is then secured to a tubing hanger mandrel and lowered through the well and production head and landed in the production head. The production head is then plugged and the well produced through side outlets in the production head without connection to the structure at the ocean surface.
Inventors
- 👤 Charles E Wakefield Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:24
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/035
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
172 words
In a method for producing a well drilled in the earth underlying a body of water from a structure on said body of water, the steps comprising: a. installing an apertured landing base on the earth at the well opening, b. securing well casing to the lower end of a production head, c. lowering said production head with said casing from said structure on said body of water into said well through said apertured landing base, d. landing said casing and said production head on said landing base, securing production tubing to the lower end of a tubing hanger mandrel, e. lowering said tubing hanger mandrel with said tubing from a structure on said body of water into said production head whereby said tubing extends into said casing, f. hanging and locking said tubing hanger mandrel within said production head, g. plugging said production head to prevent flow through the top of said production head, and h. producing well fluids from said well tubing through a side outlet in said production head.
Claim 2
Dependent Claim
172 words
In a method for producing a well drilled in the earth underlying a body of water from a structure on said body of water, the steps comprising: a. installing an apertured landing base on the earth at the well opening, b. securing well casing to the lower end of a production head, c. lowering said production head with said casing from said structure on said body of water into said well through said apertured landing base, d. landing said casing and said production head on said landing base, securing production tubing to the lower end of a tubing hanger mandrel, e. lowering said tubing hanger mandrel with said tubing from a structure on said body of water into said production head whereby said tubing extends into said casing, f. hanging and locking said tubing hanger mandrel within said production head, g. plugging said production head to prevent flow through the top of said production head, and h. producing well fluids from said well tubing through a side outlet in said production head.
Claim 3
Dependent Claim
25 words
The method of claim 1 including the step of operatively connecting said tubing to a flow line through said side outlet in said production head.
Claim 4
Dependent Claim
138 words
In a method for producing a well drilled in the earth underlying a body of water from a structure on said body of water, the steps cOmprising: a. installing an apertured landing base on the earth at the well opening, b. landing a well casing and a production head on said landing base, c. securing production tubing to a tubing hanger mandrel, d. lowering said tubing hanger mandrel with said tubing from said structure into said production head whereby said tubing extends into said casing, e. landing said mandrel on a shoulder in said production head, f. locking said mandrel, within said production head to prevent upward movement of said mandrel relative to said production head, and g. thereafter plugging said production head, h. producing well fluids from said tubing through a side outlet in said production head.
Claim 5
Dependent Claim
138 words
In a method for producing a well drilled in the earth underlying a body of water from a structure on said body of water, the steps cOmprising: a. installing an apertured landing base on the earth at the well opening, b. landing a well casing and a production head on said landing base, c. securing production tubing to a tubing hanger mandrel, d. lowering said tubing hanger mandrel with said tubing from said structure into said production head whereby said tubing extends into said casing, e. landing said mandrel on a shoulder in said production head, f. locking said mandrel, within said production head to prevent upward movement of said mandrel relative to said production head, and g. thereafter plugging said production head, h. producing well fluids from said tubing through a side outlet in said production head.
Claim 6
Dependent Claim
177 words
In a method for drilling and producing a well drilled in the earth underlying a body of water from a structure on said body of water, the steps comprising: installing an apertured landing base on the earth at the well opening with wire lines, reentering said well with drilling tools using said wire lines as guide lines, landing well casing and a production head on said landing base, securing production tubing to a tubing hanger mandrel, lowering said mandrel with said tubing from said structure into said production head whereby said tubing extends into said casing, landing said mandrel on a shoulder in said production head, locking said mandrel with respect to said production head to prevent upward movement of said mandrel relative to said production head, plugging said production head, operatively connecting said tubing to a flow line through a side outlet in said production head, and controlling flow of well fluids into said flow line through said production head side outlets with flow control valves operatively connected to said production head at said side outlets.
Claim 7
Dependent Claim
177 words
In a method for drilling and producing a well drilled in the earth underlying a body of water from a structure on said body of water, the steps comprising: installing an apertured landing base on the earth at the well opening with wire lines, reentering said well with drilling tools using said wire lines as guide lines, landing well casing and a production head on said landing base, securing production tubing to a tubing hanger mandrel, lowering said mandrel with said tubing from said structure into said production head whereby said tubing extends into said casing, landing said mandrel on a shoulder in said production head, locking said mandrel with respect to said production head to prevent upward movement of said mandrel relative to said production head, plugging said production head, operatively connecting said tubing to a flow line through a side outlet in said production head, and controlling flow of well fluids into said flow line through said production head side outlets with flow control valves operatively connected to said production head at said side outlets.
References Cited (Backward Citations)
US3237694A
Cited
US2889886A
Cited
US3177942A
Cited
US3159218A
Cited
US3259191A
Cited
US3087547A
Cited
US3256937A
Cited
US3099317A
Cited
US3236308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |