| 摘要 |
A cap for sealing a wellhead assembly of a subterranean well and suspending well assets (e.g., tubing, rods, etc.) therefrom within the well to facilitate production at the well after a period of abandonment. For instance, a decompletion process may be performed on a particular well to be temporarily abandoned which may include disconnecting a pumpjack (e.g., horsehead unit, pumping unit, etc.) from a wellhead of the well, breaking (e.g., disconnecting) the wellhead at the first flange (e.g., closest to ground level) to leave a casing head of the wellhead exposed, and/or the like. Ends of a tubing string and a rod string disposed within the subterranean well may be respectively secured within portions of the disclosed cap. The cap may then be placed and secured over the exposed casing head to limit entry of foreign objects and debris into the well. |
| 主权项 |
1. A cap for sealing a production well, comprising:
a head including an upper portion, a lower portion, a maximum outer cross-dimension, and a central axis; a flange including an upper portion, an lower portion, a maximum outer cross-dimension, and a central axis, wherein the upper portion of the flange is adjacent the lower portion of the head, and wherein the maximum outer cross-dimension of the flange is greater than the maximum outer cross-dimension of the head; and a central opening extending along the central axes of the head and the flange, wherein the central opening includes:
a first portion within the flange, wherein the first portion of the central opening includes an inner cross-dimension;a second portion adjacent the first portion, wherein the second portion of the central opening includes an inner cross-dimension, wherein the inner cross-dimension of the second portion of the central opening is less than the inner cross-dimension of the first portion of the central opening, and wherein a portion of an inner surface of the head surrounding the second portion of the central opening is threaded; anda third portion adjacent the upper portion of the head, wherein an inner surface of the head surrounding the third portion is threaded. |
