Oilwell perforator having metal coated high density metal powder liner
AssigneeHalliburton Energy Services, Inc.
InventorsDavid J. Leidel, Jerry L. Walker
Life of this patent
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Abstract
A shaped charge with enhanced performance is provided. In a disclosed embodiment, an oilwell perforator includes a liner which is formed of a metal powder. The metal powder has particles thereof which are coated with metal. The metal powder may be tungsten, and the particles may be coated with metals such as copper, lead, molybdenum, tin, nickel or silver. The resulting liner content by weight may be between approximately 95 and 100% tungsten.
Claims17
A shaped charge, comprising:
- an outer case;
- an inner liner;
- and
- an explosive material retained between the case and the liner, and
- wherein the liner is formed of a first metal powder including particles of the first metal which are coated with a second metal,
- the first metal being tungsten, the tungsten being greater that 95%, but less than 100%, by weight of the liner,
- the second metal being a selected one of lead, molybdenum, tin and silver.
A shaped charge, comprising:
- an outer case;
- an inner liner;
- and
- an explosive material retained between the case and the liner, and
- wherein the liner is formed of a first metal powder including particles of the first metal which are coated with a second metal,
- the first metal being tungsten, the tungsten being greater than 95%, but less than 100%, by weight of the liner.
A shaped charge, comprising:
- an outer case;
- an inner liner;
- and
- an explosive material retained between the case and the liner, and
- wherein the liner is formed of a first metal powder including particles of the first metal which are coated with a second metal,
- the second metal being a selected one of lead, molybdenum, tin and silver.
An oilwell perforator for use in forming perforations extending outwardly from a wellbore, the perforator comprising:
- a liner including a first metal powder having particles thereof coated with a second metal, the liner having a tungsten content by weight of approximately 95% to less than 100%, the first metal being a selected one of lead, molybdenum, tin and silver.
An oilwell perforator for use in forming perforations extending outwardly from a wellbore, the perforator comprising:
- a liner including a first metal powder having particles thereof coated with a second metal, the liner having a tungsten content by weight of approximately 95% to less than 100%.
An oilwell perforator for use in forming perforations extending outwardly from a wellbore, the perforator comprising:
- a liner including a first metal powder having particles thereof coated with a second metal, the second metal being a selected one of lead, molybdenum, tin and silver.
A method of perforating a well, the method comprising the steps of:
- conveying a perforating gun into the well, the gun including a perforator having a liner-formed of a first metal powder having particles thereof coated with a second metal, the perforator liner having a tungsten content by weight of approximately 95% to less than 100%, the second metal being a selected one of lead, molybdenum, tin and silver;
- and
- firing the perforator, thereby forming a perforation in the well.
A method of perforating a well, the method comprising the steps of:
- conveying a perforating gun into the well, the gun including a perforator having a liner formed of a first metal powder having particles thereof coated with a second metal, the perforator liner having a tungsten content by weight of approximately 95% to less than 100%;
- and
- firing the perforator, thereby forming a perforation in the-well.
A method of perforating a well, the method comprising the steps of:
- conveying a perforating gun into the well, the gun including a perforator having a liner formed of a first metal powder having particles thereof coated with a second metal, the second metal being a selected one of lead, molybdenum, tin and silver;
- and
- firing the perforator, thereby forming a perforation in the well.
Dependencies are inferred from the claim text.