Drill pipe and optimization thereof
AssigneeBlack Diamond Oilfield Rentals LLC
InventorsChristopher M. Biggerstaff, Charles G. Kibbe
Life of this patent
Estimating the term…
Abstract
A drill pipe comprises a drill pipe body having a drill pipe body outer diameter and a drill pipe body inner diameter, wherein the drill pipe body outer diameter is from about 5.1-inches to about 5.4-inches and the drill pipe body inner diameter is from about 4.4-inches to about 4.6-inches; and a tool joint comprising a rotary shoulder box connection; wherein the drill pipe has an average diameter ratio and wherein the average diameter ratio is from about 1.32 to about 1.58 for a production hole from about 7⅞-inches to about 12¼-inches. Methods of using the drill pipe are also disclosed.
Claims34
A drill pipe comprising:
- (a) A drill pipe body having a drill pipe body outer diameter and a drill pipe body inner diameter;
- and
- (b) A tool joint comprising a rotary shoulder box connection;
- (c) wherein the drill pipe has an optimization ratio (Ro) which may be approximated by an average diameter ratio (Ra) defined by
- Ra
-
- ∼
-
- Ro
- =
-
- Geom
-
-
- etric
-
-
- Factors
-
-
- which
-
-
- affect
-
-
- strenght
- Geometric
-
-
- Factors
-
-
- which
-
-
- affect
-
-
- pressure
-
-
- loss
- ,
- and
- (d) wherein the average diameter ratio is from about 1.32 to about 1.58 for a production hole from about 7⅞-inches to about 12¼-inches.
Dependencies are inferred from the claim text.