Patent Application
20180045038
Pipe Conveyed Logging or Tubing Conveyed Logging are commonly employed methods for running and using logging tools in a borehole. Each utilizes a pipe or tubing string to convey the logging tools to a target depth, whether that be a casing shoe or other location. Such systems utilize a side entry sub that is positioned within the pipe or tubing string to be just uphole of the blow out preventer (BOP). Wireline that runs inside the pipe or tubing string downhole of the BOP to connect to the logging tools passes through the side entry sub and continues to surface in an annular space between the pipe or tubing string and wall of the borehole. As will be recognized by those familiar with the art, the wireline is at risk over its length in the annular space and potentially suffers the additional indignity of being yanked due to surge in a floating platform. A severed wireline in such position can be detrimental to the operation of the BOP since the severed wireline would tend to fall downhole and collect on top of the BOP. Recovery operations for a wireline in this condition are of course costly and delay planned borehole activities. Accordingly, the art would well receive improved methods and systems.
A method for communicating in a borehole includes running a pipe or tubing into a borehole, the pipe or tubing conveying a sensor, running a wireline through the pipe or tubing, connecting the wireline with the sensor, attaching a converter sub to the pipe or tubing, communicating to surface information on the wireline in a method different than wireline.
A converter sub includes a communication and hanging system to secure a wireline to the sub, a decoder in signal communication with the wireline, and an encoder in signal communication with the decoder.
A method for logging includes running a string with logging equipment thereon and a wet connect, running wireline into the string, attaching a converter sub to the string and wireline, and attaching a wired pipe to the converter sub.
A borehole system includes a borehole in a subsurface formation, a length of tubular string in the borehole, a sensor at an end of the string distal from a surface location, a converter sub in the string at an end opposite the sensor, a wireline extending in the string from the sensor to the converter sub, and a communication configuration from the converter sub different than a wireline communication configuration.
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 method to implement the embodiment described above, includes disposing the logging equipment 22 on a first joint of the tubular string 24 along with a wet connect, not shown but well known. Further joints of tubular string are added in known manner until the logging equipment 22 reaches a target depth just above a zone of interest in borehole 12. This may be a casing shoe or other location. At this point, the wireline 26 is run through the ID (inside dimension) of the tubular string 24 and wet connected to the logging equipment through the wet connect. Communication with the logging equipment 22 is verified and then the wireline is clamped off into the tubular string 24 in order to install the converter sub 28. With the converter sub installed the system is prepared to communicate to surface information on the wireline in a method different than wireline.
Referring to
The telemetry system 20 being a hybrid of inexpensive tubing string and wireline components deeper in the borehole and an alternate communication mechanism for portions of the system uphole of the BOP avoids the issues surrounding wireline run above a BOP in an annulus while maintaining the ability to communicate logging information uphole to surface. And in the case of the
Set forth below are some embodiments of the foregoing disclosure:
A method for communicating in a borehole includes running a pipe or tubing into a borehole the pipe or tubing conveying a sensor, running a wireline through the pipe or tubing, connecting the wireline with the sensor, attaching a converter sub to the pipe or tubing, communicating to surface information on the wireline in a method different than wireline.
The method as in any prior embodiment wherein the sensor is logging equipment.
The method as in any prior embodiment wherein the communicating is decoding from wireline and encoding to the method different than wireline.
The method as in any prior embodiment wherein the method different that wireline is wired pipe.
The method as in any prior embodiment wherein the method different than wireline is mud pulse telemetry.
The method as in any prior embodiment wherein the method different that wireline is acoustic ping telemetry.
A converter sub includes a communication and hanging system to secure a wireline to the sub, a decoder in signal communication with the wireline, and an encoder in signal communication with the decoder.
The converter sub as in any prior embodiment wherein the communication and hanging system is a cone and basket hanging system.
The converter sub as in any prior embodiment wherein the communication and hanging system is a clamp hanging system.
The converter sub as in any prior embodiment further comprising a wired pipe connection.
The converter sub as in any prior embodiment further comprising a mud pulse telemetry configuration.
The converter sub as in any prior embodiment further comprising an acoustic ping telemetry configuration.
A method for logging includes running a string with logging equipment thereon and a wet connect, running wireline into the string, attaching a converter sub to the string and wireline, and attaching a wired pipe to the converter sub.
The method as in any prior embodiment further comprising converting wireline information to wired pipe information in the converter sub and conveying the information to surface.
A borehole system includes a borehole in a subsurface formation, a length of tubular string in the borehole, a sensor at an end of the string distal from a surface location, a converter sub in the string at an end opposite the sensor, a wireline extending in the string from the sensor to the converter sub, and a communication configuration from the converter sub different than a wireline communication configuration.
The borehole system as in any prior embodiment wherein the sensor is logging equipment.
The borehole system as in any prior embodiment wherein the converter sub includes a wireline communication and hanging system.
The borehole system in any prior embodiment wherein the converter sub includes conversion configurations for communicating wireline information to information conveyable by a communication means different than wireline.
The borehole system as in any prior embodiment wherein the communication configuration is wired pipe.
The borehole system as in any prior embodiment wherein the communication configuration is mud pulse telemetry.
The borehole system as in any prior embodiment wherein the communication configuration is acoustic ping telemetry.
The use of the terms “a” and “an” and “the” and similar referents in the context of describing the invention (especially in the context of the following claims) are to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. Further, it should further be noted that the terms “first,” “second,” and the like herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The modifier “about” used in connection with a quantity is inclusive of the stated value and has the meaning dictated by the context (e.g., it includes the degree of error associated with measurement of the particular quantity).
The teachings of the present disclosure may be used in a variety of well operations. These operations may involve using one or more treatment agents to treat a formation, the fluids resident in a formation, a wellbore, and/or equipment in the wellbore, such as production tubing. The treatment agents may be in the form of liquids, gases, solids, semi-solids, and mixtures thereof. Illustrative treatment agents include, but are not limited to, fracturing fluids, acids, steam, water, brine, anti-corrosion agents, cement, permeability modifiers, drilling muds, emulsifiers, demulsifiers, tracers, flow improvers etc. Illustrative well operations include, but are not limited to, hydraulic fracturing, stimulation, tracer injection, cleaning, acidizing, steam injection, water flooding, cementing, etc.
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.
