A variety of systems and methods have been developed to allow communication through tubulars in industries such as hydrocarbon recovery and carbon dioxide sequestration, for example. Some of these systems employ mud pulse telemetry wherein pressure pulses are generated in fluid at one location along a tubular and are sensed in the fluid at another location along the tubular. These systems work fine for some applications; however those who practice in the art are always receptive to new systems and methods that overcome any limitations with the existing systems and methods.
A telemetry system including a tubular; a pump in operable communication with the tubular configured to pump a fluid through the tubular; a flow altering arrangement in operable communication with at least one of the pump and the tubular; a flow interacting detail disposed in the tubular; and a load sensor configured to detect forces imposed on the flow interacting detail due to flow through the flow interacting detail and output signals related to the forces detected.
A method of communicating through a tubular, including flowing fluid through a tubular having a flow interacting detail disposed therewithin; altering flow of the fluid through the tubular and the flow interacting detail; sensing force on the flow interacting detail related to the flow of the fluid; and tracking the sensed force over time.
The following descriptions should not be considered limiting in any way. With reference to the accompanying drawings, like elements are numbered alike:
A detailed description of one or more embodiments of the disclosed apparatus and method are presented herein by way of exemplification and not limitation with reference to the Figures.
Referring to
The foregoing system 10 allows an operator to communicate over a distance through the tubular 18 between the flow altering arrangement 22 and the load sensor 30. Doing so includes altering flow rates of fluid pumping through the tubular 18 and through the flow interacting detail 26 sensing force exhibited on the flow interacting detail 26 related to the fluid flow rate therethrough and tracking the sensed force over a period of time. This relationship may be a proportional relationship wherein the force measured on the flow interacting detail 26 is proportional to the rate of fluid flow through the flow interacting detail 26. The system 10 allows data to be transmitted from the flow altering arrangement 22 to the load sensor 30. This data can be carried via a digital modulation scheme with a continuous phase to impose the information on a carrier signal, such as continuous phase modulation, for example.
Referring to
The flow interacting detail 26A defines an orifice 38 through which the fluid flows while interacting therewith. The orifice 38 defines a minimum radial dimension 42A of the flow interacting detail 26A. In this embodiment the minimum radial dimension 42A is smaller than a minimum radial dimension 46 of the tubular 18. Since the flow interacting detail 26A has the single orifice 38, as opposed to a tortuous path, for example, tools can be run therethrough while leaving the telemetry system 10 in place and functionally undisturbed. Angled surfaces 50 on both longitudinal ends of the flow interacting detail 26A allow tools run therethrough to be directed through the orifice 38 to avoid hanging up on the flow interacting detail 26A.
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The telemetry systems 10, 110 disclosed herein can continue to be used after, and indeed, even while a tool, such as a wireline tool, a coiled tubing tool or a tubing encapsulated conductor tool, for example, is positioned within the tubular 18 and positioned through the flow interacting details 26A, 26B. allowing tools to be run therethrough without disruption to function of the telemetry systems 10, 110 allows them to be used in applications where conventional telemetry systems are typically not employed. Such applications include in downhole completions systems in the hydrocarbon recovery and carbon dioxide sequestration industries. As such, in addition to being employable in a drill string the systems 10, 110 can be employed in a casing 124 or liner that is configured to stay within a wellbore 126 in an earth formation 128 permanently.
While the invention has been described with reference to an exemplary embodiment or embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof Therefore, it is intended that the invention not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include all embodiments falling within the scope of the claims. Also, in the drawings and the description, there have been disclosed exemplary embodiments of the invention and, although specific terms may have been employed, they are unless otherwise stated used in a generic and descriptive sense only and not for purposes of limitation, the scope of the invention therefore not being so limited. Moreover, the use of the terms first, second, etc. do not denote any order or importance, but rather the terms first, second, etc. are used to distinguish one element from another. Furthermore, the use of the terms a, an, etc. do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item.