As thought leaders, LYTT has published numerous papers highlighting our subject matter expertise and demonstrating our innovative and proven technology in action.

Links to our papers are available below.

Raising recovery rates in real-time using in-well fiber optic sensing

Learn how LYTT’s unique technology is turning in-well fiber optic sensing data into actionable insights, making well production safer, faster and more efficient.

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Well integrity flow detection using novel acoustic pattern recognition algorithms

This paper describes the application of fiber optic technology to identify and differentiate multiple downhole well integrity events such as tubing leaks, casing leaks, flow behind casing and overburden integrity, using a unique algorithmic pattern recognition capability based on acoustic measurements from DAS data. The practical application of this technology is demonstrated on a Plug and Abandonment case.

Paper Number: SPE-203447-MS

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Downhole sand ingress detection using fibre-optic distributed acoustic sensors

A new DAS solution identifies real-time downhole sand ingress locations across a reservoir. Flow loop experiments combined with field trials verify the feasibility of the DAS-based technology and its application in the first targeted sand remediation in a customer well confirms successful deployment to the field.

Paper Number: SPE-183329-MS

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Application of distributed acoustic sensing DAS technology in identification and remediation of sand producing zones in OHGP completion

DAS sand detection surveillance in the customer's field delivers substantial production and safety benefits. Subsurface sand detection with DAS combined other relevant sensors is used for drawdown optimization and risk management of numerous wells with sand production. Examples include wells with pre-installed fiber and interventions with fiber deployed via wireline.

Paper Number: SPE-188991-MS

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20 years of downhole surveillance history

Within a comprehensive overview of the evolution of downhole surveillance in the customer's field, DAS sand detection is discussed as a new, real-time downhole sand monitoring technology. More than 30 DAS sand detection surveys demonstrate the importance and value of downhole distributed insights delivered through LYTT analytics for optimal pressure control in hydrocarbon wells.

Paper Number: SPWLA-2018-V59N4A6

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Using distributed fiber optic sensing to recover well integrity and restore production
 
The paper describes a case study of a well where persistent sustained casing pressure (SCP) in the A-annulus resulted in the well being shut in for a period of almost three years.

The fibre optic cable used for communication with the downhole pressure gauge was repurposed allowing for an acquisition of Distributed Acoustic Sensing (DAS) data which was then analysed and used to adjust the remediation strategy achieving the resolution of A-annulus SCP, the return of the well to operation and the reinstatement of production.
 
Paper Number: SPE-204450-MS

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Production optimization using a 24/7 distributed fiber optic DFO sensing based multiphase inflow profiling capability

This paper summarizes the main findings from the first successful deployment of a continuous multiphase inflow profiling application that uses innovative signal processing techniques and machine learning that leverage distributed fiber optic data to identify the phase and rate of the inflow along the wellbore during production. 

Paper Number: SPE-201543-MS

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Production optimization of sanding horizontal wells using a DAS sand monitoring system

In the case study outlined in this paper, the oil production rate was increased by 25% using a predictive pressure optimization workflow to minimize sand production in a horizontal, sand prone well. DAS-derived sand entry and sand transportation logs through time, combined with other customary downhole sensors, were used to determine optimum drawdown pressure envelopes.

Paper Number: SPWLA-2021-0001

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