The present disclosure relates generally to the deployment of downhole tools in a wellbore, and specifically to deployment of surveying tools through a tool string in a wellbore.
Accurately and precisely determining the path of a wellbore is desirable, particularly when drilling deviated wells. Traditionally, a combination of sensors is used to measure downhole trajectory and subterranean conditions. Often, these sensors are included as part of the bottomhole assembly (BHA) of a drilling string. In some cases, however, a sensor package may be deployed into a wellbore through the interior of a tubular string after drilling of a wellbore is completed. In some cases, for example, the sensor package may be particularly susceptible to damage during a drilling operation. The sensor package may be deployed by gravity or by fluid pressure into the interior of the tubular string until it reaches a position at or near the BHA of the tubular string. Because of the relatively small interior diameter of the drill string, a guide or landing nose, referred to as a “bullnose”, is typically utilized to, for example, help the sensor package navigate the interior of the drill string. The sensor package may then operate to measure or log as the tool string is removed or tripped-out of the wellbore.
The present disclosure provides for a system for deploying a sensor package into a tubular string. The system may include a landing nose. The landing nose may be adapted to couple at a first end to the sensor package. The landing nose may include a landing nose body and one or more fins. The landing nose body may be generally cylindrical in shape. The fins may extend radially outwardly from the landing nose body and beyond a second end of the landing nose body. The system may also include a landing ring. The landing ring may be positioned within and coupled to the tubular string. The landing ring may include a central aperture adapted to allow fluid to pass therethrough. The landing ring may be adapted to prevent further travel of the landing nose within the tubular string.
The present disclosure also provides for a landing nose for guiding a sensor package through a tubular string. The landing nose may include a landing nose body. The landing nose body may be generally cylindrical in shape and may have a first and second end. The landing nose body may include a coupler at the first end adapted to couple to the sensor package. The landing nose may further include one or more fins. The fins may extend radially outwardly from the landing nose body and beyond the second end of the landing nose body.
The present disclosure also provides for a method for deploying a sensor package into a tubular string positioned in a wellbore. The method may include positioning a landing ring at a predetermined location in the tubular string. The landing ring may include a central aperture adapted to allow fluid to pass therethrough. The method may also include coupling a landing nose to the sensor package. The landing nose may be adapted to couple at a first end to the sensor package. The landing nose may include a landing nose body and one or more fins. The landing nose body may be generally cylindrical in shape. The fins may extend radially outwardly from the landing nose body and beyond a second end of the landing nose body. The fins may be adapted to prevent the landing nose from passing through the landing ring. The method may further include inserting the landing nose and sensor package into an open end of the tubular string. The method may further include running the landing nose and sensor package through the tubular string. The method may further include contacting the landing ring with at least a portion of the landing nose.
The present disclosure is best understood from the following detailed description when read with the accompanying figures. It is emphasized that, in accordance with the standard practice in the industry, various features are not drawn to scale. In fact, the dimensions of the various features may be arbitrarily increased or reduced for clarity of discussion.
a-3c depict various views of a landing nose consistent with embodiments of the present disclosure.
a-4c depict various views of a landing ring consistent with embodiments of the present disclosure.
It is to be understood that the following disclosure provides many different embodiments, or examples, for implementing different features of various embodiments. Specific examples of components and arrangements are described below to simplify the present disclosure. These are, of course, merely examples and are not intended to be limiting. In addition, the present disclosure may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
In some embodiments, as depicted in
In some embodiments, landing nose 101 may be a generally tubular member including landing nose body 103. In some embodiments, landing nose 101 may include coupler 105 adapted to allow the sensor package to be coupled thereto. In some embodiments, as depicted in
In some embodiments, landing nose 101 may include nose ring 109. Nose ring 109 may be positioned at the end of landing nose 101 opposite coupler 105 such that nose ring 109 leads landing nose 101 as landing nose 101 traverses through tubular string 10.
In some embodiments, nose ring 109 may be coupled to landing nose body 103 by one or more fins 111. In some embodiments, fins 111 may be generally evenly radially distributed about landing nose body 103 and nose ring 109. In some embodiments, fins 111 may extend radially outward from landing nose body 103 and nose ring 109. In some embodiments, the outer diameter of fins 111 may be selected to allow landing nose 101 and any sensor package to more easily traverse the interior of tubular string 10 while remaining oriented therewith and reduce opportunities for landing nose 101 to catch on any protrusions or features of tubular string 10. In some embodiments, fins 111 may include one or more features adapted to more easily allow landing nose 101 to pass through tubular string 10. For example and without limitation, in some embodiments, the outer diameter of fins 111 may reduce toward the end of fins 111. In some embodiments, each fin 111 may vary in thickness to reduce the overall outer diameter of fins 111. In some embodiments, fins 111 may include taper 113. In some embodiments, taper 113 may be flat, chamfered, or, as shown in
In some embodiments, nose ring 109 may be adapted to couple between fins 111 to, for example and without limitation, add structural support to fins 111. In some embodiments, nose ring 109 may have central aperture 115 extending therethrough. In some embodiments, central aperture 115 may be adapted to allow fluid to flow between fins 111 and through nose ring 109 along flow path f as illustrated in
In some embodiments, as depicted in
In some embodiments, as depicted in detail in
In some embodiments, landing ring 151 may include landing face 157 adapted to contact landing nose 101 as shown in
In some embodiments, as depicted in detail in
In some embodiments, as depicted in
To further assist with the understanding of the use of landing nose 101 in accordance with embodiments of this disclosure, an exemplary operation for positioning a sensor package into tubular string 10 will now be described. Tubular string 10 may, as previously discussed, be a drill or tool string made up of a plurality of tubular segments. As tubular string 10 is made-up, defined as coupling additional tubular segments to tubular string 10 to extend the length of tubular string 10 as it is extended into the wellbore, landing ring 151 may be positioned within tubular string 10 at a desired location. In some embodiments, the desired location may be at or near the BHA. Once tubular string 10 is at a desired depth from tripping-in and/or drilling operations, a sensor package may be deployed into tubular string 10.
In some embodiments, to deploy the sensor package, landing nose 101 may be coupled to the sensor package. The sensor package and landing nose 101 may be positioned into an open end of tubular string 10 at the surface of the wellbore and allowed to travel therethrough. In some embodiments, the sensor package and landing nose 101 may travel by the force of gravity. In some embodiments, the sensor package and landing nose 101 may be driven by fluid pressure as fluid is pumped through tubular string 10. While landing nose 101 travels through tubular string 10, fins 111 may reduce opportunities for landing nose 101 to catch on any protrusions or features of tubular string 10 as previously discussed. In some embodiments, in which fins 111 include tapers 113, tapers 113 may further reduce opportunities for landing nose 101 to catch on any protrusions or features of tubular string 10.
Once landing nose 101 reaches landing ring 151, at least a portion of landing nose 101 may contact landing ring 151. Landing ring 151 may prevent landing nose 101 from travelling further through tubular string 10. Once landed, fins 111 may provide a flow path for fluid to flow between fins 111 and through central aperture 153 of landing ring 151 as previously discussed.
The sensor package may then be activated to begin surveying as tubular string 10 is tripped-out of the wellbore. Landing ring 151 may retain the sensor package and landing nose 101 in position within tubular string 10 as tubular string 10 is tripped-out from the wellbore. During the tripping-out procedure, the sensor package may continue to survey the wellbore and surrounding formation as previously discussed and may store data to be retrieved at the surface. Once the sensor package reaches the surface, it may be removed from tubular string 10, and the data may be retrieved.
The foregoing outlines features of several embodiments so that a person of ordinary skill in the art may better understand the aspects of the present disclosure. Such features may be replaced by any one of numerous equivalent alternatives, only some of which are disclosed herein. One of ordinary skill in the art should appreciate that they may readily use the present disclosure as a basis for designing or modifying other processes and structures for carrying out the same purposes and/or achieving the same advantages of the embodiments introduced herein. One of ordinary skill in the art should also realize that such equivalent constructions do not depart from the spirit and scope of the present disclosure and that they may make various changes, substitutions, and alterations herein without departing from the spirit and scope of the present disclosure.
This application is a nonprovisional application which claims priority from U.S. provisional application No. 62/042,491, filed Aug. 27, 2014.
Number | Date | Country | |
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62042491 | Aug 2014 | US |