First Real-Time Drill-Stem Test in Deepwater Using Fully Acoustic Telemetry Monitoring and Control of the Well

Dias, Flavio; Marcancola, Fernando; Wakabayashi, Dalmo; Piazza, Ralph

doi:10.2118/172111-ms

Cited by 8 publications

(2 citation statements)

References 9 publications

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“…Although the vibrational method was introduced previously, because of the lack of an efficient transducer the method was not popular. Nowadays, piezoelectric ceramic technology has become more advanced, so the method of acoustic telemetry is beginning to gain commercial popularity (Haddad et al 2010;Dias et al 2014;Kreuzer et al 2014). In acoustic telemetry, the medium of pressure wave transmission is the solid steel pipe rather than viscous liquid as in MPT, so it has less attenuating factors.…”

Section: Introductionmentioning

confidence: 99%

Simulation and experiment of vibrational or acoustic communication in mining and oil-gas drill strings

Islam

Peter

Wiens

2019

Transactions of the Canadian Society for Mechanical Engineering

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Drilling for exploration and mineral extraction purposes is generally an invisible process, that is, there is a lack of real-time information available from the tool head. The borehole mining and oil-gas drilling industries both face tremendous challenges because of this invisibility. Lack of data has impacts on extraction quantity and quality, process efficiencies, and is a major factor in overall program costs. This is why a communication method between the drill head and the surface has been under research. Different communication methods have enabled industries to establish more control over the drill bit. Low data transmission rate is one of the most concerning drawbacks of existing communication methods. Acoustic, also known as vibrational telemetry, is the most recent method used in transferring data through drill pipe at the highest data transmission rate. The proper use of acoustic tools and communication schemes will successfully establish a fast data transmission rate and is expected to become a popular method. This paper will introduce a simulation model for transmission of data through drill pipes and will extrapolate a practical case of a large number of pipes that is usually used in oil-gas extraction. It will also demonstrate an experimental setup of a new acoustic transducer.

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Section: Introductionmentioning

confidence: 99%

Simulation and experiment of vibrational or acoustic communication in mining and oil-gas drill strings

Islam

Peter

Wiens

2019

Transactions of the Canadian Society for Mechanical Engineering

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“…The vibrational method and theories have been known from the beginning of the MWD, but because of the lack of an efficient transducer, the method did not flourish. Currently, because of advancements in piezoelectric ceramic technology, the method has resurfaced and is beginning to gain commercial popularity [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Experimental Results and Proposed Electromechanical Model for Vibrational Communication in Mining and Oil-Gas Drill Strings

Islam¹,

Peter²,

Wiens³

2018

Progress in Canadian Mechanical Engineering

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In borehole mining and oil and gas drilling, the drilling process is invisible from the surface, which is why a two-way communication method between the drill head and the surface is a must. The popular industrial instrumentation technique, widely known as measurement while drilling (MWD), has enabled industries to save costly employee hours and gain more control over the drill bit direction. There are four major methods used throughout history, where the mud pulse telemetry technique has become the state of the art because of its simplicity and convenience. However, like other methods, it has a major drawback of having a slow data transmission rate. Moreover, other methods have different issues which include large attenuation of the data that is transferred through drill pipes. Acoustic telemetry is the most recent method of transferring data through a solid medium, a technique using continuous wave propagation of forces in the wall of the pipe. A proper use of this new method is expected to become popular in the mining and oil-gas industries because of its faster data transmission rate and ability to ignore most attenuating parameters. This method is still in its optimization stage, and the use of a convenient tool to match the transducer with the parameters of the drill pipe and surroundings is still a challenge to overcome. This paper will propose a simulation model to simulate the transmission of data through drill pipes, and will show experimental results of such arrangement justifying the opportunities ahead in this field.

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First Dual Zone Drillstem Test With Acoustic Telemetry Using Multiple Retrievable Packers for Single Trip Testing of Two Independent Reservoirs

Dolciani

Tiwari

Adewuya

et al. 2016

Day 2 Tue, September 27, 2016

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Although the main objectives of drillstem testing (DST) have remained largely unchanged over the years, operators are continuously seeking a means of improving operational efficiency (time/cost savings) while maintaining the highest level of operational standards, with safety and the environment being paramount. This paper presents a case history of the first retrievable dual packer testing string used to independently test two reservoirs in a single trip (toolstring conveyance into and out of the hole), which enhances operational efficiency. This case history is from an offshore exploratory well in Saudi Arabia in which a dual retrievable packer test string was deployed with a real-time telemetry system to successfully test two independent reservoirs in a single trip. Throughout the operation, real-time telemetry data above and below each packer enabled real-time understanding of the operational process and provided assurance of equipment/process integrity before proceeding with the next sequence of well testing operations. In this manner, operations were safely performed step-by-step, ensuring that the well test objectives and zonal isolation were met to determine the individual reservoir evaluation integrity. With the application of acoustic telemetry technology, the ability to acoustically communicate with and control downhole tools in real time is achieved. Communication to and from the downhole tools also provides the status of the downhole equipment in real time. In addition, knowledge gained from the real-time data enhances the ability of the operators to perform well tests with reduced uncertainties. The early availability of reservoir knowledge enables operational efficiencies, ensuring that test objectives are met, and may reduce the overall test period and significantly reduce well testing costs. The direct result of eliminating multiple trips is that operational efficiency is achieved, enabling the operator to save time and money without compromising data quality or health, safety, and environment standards. This case history represents a milestone for the industry, demonstrating the successful deployment of multizone testing, and serves as a stepping stone for even greater efficiencies by using real-time telemetry technology. This paper also discusses lessons learned and plans for additional well testing process efficiencies, enhanced with well application selection and DST toolstring acoustic control devices and technology.

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First Real-Time Drill-Stem Test in Deepwater Using Fully Acoustic Telemetry Monitoring and Control of the Well

Cited by 8 publications

References 9 publications

Simulation and experiment of vibrational or acoustic communication in mining and oil-gas drill strings

Simulation and experiment of vibrational or acoustic communication in mining and oil-gas drill strings

Experimental Results and Proposed Electromechanical Model for Vibrational Communication in Mining and Oil-Gas Drill Strings

First Dual Zone Drillstem Test With Acoustic Telemetry Using Multiple Retrievable Packers for Single Trip Testing of Two Independent Reservoirs

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