Not Applicable.
Not Applicable.
A portion of the disclosure of this patent document contains material which is subject to intellectual property rights such as but not limited to copyright, trademark, and/or trade dress protection. The owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure as it appears in the Patent and Trademark Office patent files or records but otherwise reserves all rights whatsoever.
The present invention relates to securing drilling equipment while allowing for rotation and swiveling of the equipment for proper installation at the rig. In particular, the present invention relates to a swivel device that attaches to the bowl or is a component of the bowl that allows repositioning of the outlet to meet the flowline.
In the oil and gas industry, rig personnel often install a bowl as a component for operating rotating control device (RCD). The bowl seals pipe inserted into the wellbore while allowing rotation. The bowl also contains and diverts fluids such as drilling mud, produced fluids, and surface injected air or gas to a flowline.
The bowl provides an outlet for directing the fluids to the flowline. The flowline secures to the outlet. However, the bowl secures to the stack in a fixed position. Installing the bowl in the fixed position may occasionally lead to the outlet not aligning with the flowline. In such instances, the bowl must be uninstalled. Installation of the bowl must then be modified to align the outlet with the flowline.
Removing and modifying the installation of the bowl decreases operation time and increases operating costs. The operation of the rig must be halted while the bowl is properly installed. Such downtime costs money and causes rig non-productive time (NPT).
By reducing the downtime and NPT, the present invention increases operation while reducing time spent cleaning. The present invention also provides a more convenient system that reduces the equipment needed and increases functionality of existing drilling equipment.
Patents and patent applications disclosing relevant information are disclosed below. These patents and patent applications are hereby expressly incorporated by reference in their entirety.
U.S. Pat. No. 7,308,954 issued to Martin-Marshall on Dec. 18, 2007 (“the '954 patent”) teaches a rotating diverter head for use on a blow out preventer stack of an oil, gas or geothermal well. While providing for sealing and rotation of a drill pipe through the head, the head taught by the '954 patent additional includes a flange on which the head is rotatable. The flange taught by the '954 patent connects the head to the stack whereupon it can be rotated to align a return flow line before being locked in position.
These shortcomings are overcome by the invention disclosed herein. Accordingly, it would be desirable to provide an improved device and system for securing the outlet of the bowl to the flowline.
The swivel device of the present invention attaches to a bowl or is implemented as a component of the bowl. The swivel device enables adjustment of the bowl to align the outlet with the flowline. A flange of the swivel device includes multiple fastener apertures for securing the flange to the stack.
The swivel device provides a flange, such as a shoulder that secures a neck within the shoulder. The neck rotates within the shoulder to allow for repositioning of the outlet of the bowl. In one embodiment, the swivel device provides a lower shoulder that allows rotation of the neck. An upper flange secured to the neck remains fixed to the neck such that the upper flange rotates with the neck. The bowl attaches to the upper flange located vertically above the shoulder. Such an embodiment with the upper flange raises the bowl off the annular.
In another embodiment, the neck is directly secured to the bowl. The shoulder attaches to the annular. The shoulder secures the bowl while allowing the bowl to rotate.
Rotation of the bowl adjusts the positioning of the outlet. Adjustment of the outlet enables alignment of the outlet with the flowline. The flowline is placed in a fixed position such that adjusting the position and orientation of the flowline is difficult.
The present invention reduces the downtime and costs of operating the drilling rig. The present invention increases the functionality of existing equipment. The present invention also reduces the time required to install equipment. The present invention also provides a safer work environment and reduces the time required to secure the outlet of the bowl to the flowline.
It is an object of the present invention to swivel the outlet of the bowl to align with the flowline.
Another object of the present invention is to raise the bowl off of the annular.
Another object of the present invention is to reduce the time required to install the bowl.
Another object of the present invention is to reduce the time required to connect the flowline to the outlet of the bowl.
Another object of the present invention is to allow for the trouble free connection of the flowline to the outlet of the bowl.
Another object of the present invention is to create a safer work environment for rig personnel.
Another object of the present invention is to avoid unnecessary removal of the bowl to align the bowl with the flowline.
Another object of the present invention is to simplify the method of connecting the outlet to the flowline.
In addition to the features and advantages of the swivel device for rotating a bowl according to the present invention, further advantages thereof will be apparent from the following description in conjunction with the appended drawings.
These and other objects of the invention will become more fully apparent as the description proceeds in the following specification and the attached drawings. These and other objects and advantages of the present invention, along with features of novelty appurtenant thereto, will appear or become apparent in the course of the following descriptive sections.
In the following drawings, which form a part of the specification and which are to be construed in conjunction therewith, and in which like reference numerals have been employed throughout wherever possible to indicate like parts in the various views:
The swivel device 100 of one embodiment shown in
The swivel device 100, 118 attaches to the stack (not pictured). The swivel device 100 of one embodiment is a component of the bowl. As a component of the bowl 101, the swivel device 100 eliminates the need for multiple attachments. Such an embodiment also reduces the amount of equipment required at the drilling operation.
In another embodiment, the swivel device 118 provides a neck 126 that raises the bowl (not pictured) above the annular as shown in
Neck 106 rotates within shoulder 104. Neck 106 is an extension of the bowl. In one embodiment, the neck 106 is welded to the bowl 101. The shoulder 104 limits vertical movement of the neck 106 and bowl 101 while allowing the rotation of the bowl 101 to position the outlet 102.
Neck 106 secures to the bowl 101. The neck 106 provides foot 114 for securing the neck within the shoulder 104. The attachment of neck 106 to shoulder 104 via foot 114 allows the neck 106 to rotate within shoulder 104. While shoulder 104 is secured to the stack, the neck 106 can rotate within shoulder 104 for adjusting the outlet in relation to the flowline.
The innermost surface of foot 114 enables placement of a seal at the contact surface between neck 106 and the stack. A seal is placed within seal groove 116. The seal contacts the stack to seal the drilling fluids.
The user tightens the fasteners within the fastener apertures 108 to secure the shoulder onto the stack. The user rotates the bowl to the proper orientation. Tightening the shoulder 104, such as a flange, onto the stack, causes the lip 112 of the shoulder 104 to frictionally engage the foot 114. Such contact between the lip 112 and the foot 114 limits rotation of the neck and foot within the shoulder when the shoulder is tightened down on the stack. To rotate the bowl, the user simply loosens the fasteners to decrease the frictional engagement of the lip with the foot to rotate the bowl. Tightening the fasteners limits rotation of the bowl and the foot within the shoulder.
Seal groove 116 provides an area for placement of a seal. The seal creates a seal between the neck 106 and the stack.
Shoulder 120 secures to the stack such that the shoulder 120 remains in a fixed position in relation to the stack. Similar to the embodiment discussed above, the fasteners insert into fastener apertures 122 downward into the stack. The user tightens the fasteners within the fastener apertures 122 to secure the shoulder 120 onto the stack. Tightening the shoulder 120, such as a flange, onto the stack, causes the shoulder 120 to frictionally engage the foot. Such contact between the lip and the foot limits rotation of the neck and foot within the shoulder. To rotate the bowl, the user simply loosens the fasteners to decrease the frictional engagement of the lip with the foot to rotate the bowl. Tightening the fasteners limits rotation of the bowl and the foot within the shoulder.
The head 128, such as a flange, provides multiple fastener apertures 130 for securing the head 128 to the bowl. The bowl secures to the top of the head 128. Fasteners insert into the bowl and downward into apertures 130 of the head 128. Neck 126 and head 130 rotate with the bowl. The rotation of the head 126, head 130, and bowl adjusts the positioning of the outlet. The user rotates the neck 126, head 128, and bowl to align the outlet with the flowline.
The swivel device provides a flange, such as a shoulder that secures a neck within the shoulder. The neck rotates within the shoulder to allow for repositioning of the outlet of the bowl. In one embodiment, the swivel device provides a lower shoulder that allows rotation of the neck. An upper flange, such as head 128, secured to the neck remains fixed to the neck such that the upper flange rotates with the neck. The bowl attaches to the upper flange located vertically above the shoulder. Such an embodiment with the upper flange raises the bowl off the annular.
Stopping fingers 124 protrude outwardly from the neck 126. The stopping fingers 124 prevent the shoulder 120 from travelling past the stopping fingers 126. Stopping fingers 124 are located above the shoulder 120 to allow rotation of the neck 126 and head 128. The stopping fingers 124 simplify the process of transporting and moving the swivel device 118. The stopping fingers 124 prevent the shoulder 120 from travelling up the neck 126 should the swivel device 118 be turned upside down.
The head 128 located above the neck 126 maintains pressure containment within the sealing device 118. In one embodiment, the head 128 is a separate piece that is welded onto the neck 126. The head 128 is welded onto the neck with a high pressure full pin weld 129. The weld 129 contains the pressure within the swivel device 118.
Foot 136 of neck 126 extends outwardly, such as radially outward. The lip 138 located vertically above foot 136 limits vertical movement of the neck 126 while allowing rotation of neck 126.
The present invention provides a method for aligning the outlet of the bowl with the flowline. The user attaches a fixed shoulder to the stack. The shoulder limits the vertical movement of the neck. The interior surface of the shoulder narrows to a smaller diameter than the outer diameter of the neck. The narrower section of the shoulder prevents the neck from passing vertically passing through the shoulder. The shoulder limits vertical movement while allowing rotation of the neck. The user rotates the neck and the bowl to align the outlet with the flowline. After obtaining the proper orientation, the user attaches the outlet to the flowline.
The user tightens the fasteners within the fastener apertures to secure the shoulder onto the stack after the bowl is properly aligned with the flowline. Tightening the shoulder, such as a flange, onto the stack, causes the shoulder to frictionally engage the foot. Such contact between the lip and the foot limits rotation of the neck and foot within the shoulder. To rotate the bowl, the user simply loosens the fasteners to decrease the frictional engagement of the lip with the foot to rotate the bowl. Tightening the fasteners limits rotation of the bowl and the foot within the shoulder.
The swivel device shown in
From the foregoing, it will be seen that the present invention is one well adapted to obtain all the ends and objects herein set forth, together with other advantages which are inherent to the structure.
It will be understood that certain features and subcombinations are of utility and may be employed without reference to other features and subcombinations. This is contemplated by and is within the scope of the claims.
As many possible embodiments may be made of the invention without departing from the scope thereof, it is to be understood that all matter herein set forth or shown in the accompanying drawings is to be interpreted as illustrative and not in a limiting sense.
This application is a continuation of U.S. patent application Ser. No. 17/068,519 filed on Oct. 12, 2020 entitled SWIVEL DEVICE FOR ROTATING A BOWL that is a continuation of U.S. patent application Ser. No. 16/872,030 filed on May 11, 2020 entitled SWIVEL DEVICE FOR ROTATING A BOWL that issued as U.S. Pat. No. 10,801,297 on Oct. 13, 2020 that is a continuation of U.S. patent application Ser. No. 16/410,791 filed on May 13, 2019 entitled SWIVEL DEVICE FOR ROTATING A BOWL that issued as U.S. Pat. No. 10,648,271 on May 12, 2020 that is a continuation in part of U.S. patent application Ser. No. 15/464,021 filed on Mar. 20, 2017 entitled SWIVEL DEVICE FOR ROTATING A BOWL that issued as U.S. Pat. No. 10,287,845 on May 14, 2019.
Number | Name | Date | Kind |
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11391111 | Pruitt | Jul 2022 | B1 |
Number | Date | Country | |
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Parent | 17068519 | Oct 2020 | US |
Child | 17867649 | US | |
Parent | 16872030 | May 2020 | US |
Child | 17068519 | US | |
Parent | 16410791 | May 2019 | US |
Child | 16872030 | US |
Number | Date | Country | |
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Parent | 15464021 | Mar 2017 | US |
Child | 16410791 | US |