New Fullbore Production Logging Sensor Improves the Evaluation of Production in Deviated and Horizontal Wells

Kessler, Calvin; Frisch, Gary

doi:10.2118/29815-ms

Cited by 5 publications

(1 citation statement)

References 4 publications

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“…An alternative approach taken was the use of tools that ejected lipophilic chemical tracers to monitor oil flow rate and the use of oxygen activation to measure the water-phase velocity. Radioactive full-bore density was included to complement the basic multi-spinner, multicapacitance/resistivity measurements (Kessler and Frisch 1995;DeWayne 1996;Roscoe et al 1996;Georgi et al 1998 andKuchuk et al 1994).…”

Section: Introductionmentioning

confidence: 99%

Production Logging in Horizontal Wells: Different Deployment and Data Acquisition Methodologies in Open-Hole and Cased Completions

et al. 2011

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The horizontal wells drilled during the last few years are coming to a mature state in different fields and locations. This maturing has created the requirement to evaluate the performance of the wells and determine water sources for proper reservoir management.In horizontal-well tool deployment, multiple sensor data acquisition and the interpretation of these results is a challenge particularly when there are long intervals of open-hole completions and where fractures are often encountered. The horizontal cased-hole completions use multiple downhole valves and external packers to provide isolation between intervals. This paper reviews the two primary deployment techniques of coil tubing and tractor conveyance and highlights their advantages and limitations. In the paper, we propose a general guideline for their use.The use of different sensors and their application is reviewed, providing recommendations particularly for low flow-rate conditions. Two interpretation methodologies are evaluated and results are compared along with the interpretation from other sensors.The value of integrating of all available information and the value of different data acquisition and evaluation techniques is presented as well in the paper. The conclusions highlight the operational considerations, the data interpretation, and added value in the evaluation of well performance to maintain production and improve reservoir management.

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Section: Introductionmentioning

confidence: 99%

Production Logging in Horizontal Wells: Different Deployment and Data Acquisition Methodologies in Open-Hole and Cased Completions

et al. 2011

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Horizontal Well Production Logging Deployment and Measurement Techniques for US Land Shale Hydrocarbon Plays

Heddleston¹

2009

SPE Production and Operations Symposium

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Traditional US land hydrocarbon bearing shale formations are presently being drilled & produced via horizontal wells. These horizontal wells consist of numerous selectively shot stages containing as many as 15 stages spread out across 2000 ft to 5000 ft interval. These completions have been hydraulically fractured with water or slick water & require a flowback period of the injected water prior to the wells being kicked off with gas production. Since these types of formations are far from being homogeneous, the horizontal laterals can intersect existing natural fractures or faults in the formation or an aggressive hydraulic frac could induce fractures into existing natural fractures or faults. When producing horizontal wells the lateral section draw down of the formation water has the ability to enter the wellbore from these faults or fractures causing the well's gas production performance to drop & eventually die off. This paper will showcase US land horizontal well Production Logging deployment techniques using coiled tubing or well tractor examples & measurement techniques by imaging wellbore liquid / gas holdup, fluid velocity & thermal changes across the lateral. These techniques are successfully being used on US land horizontal wells in shale gas plays, whereby these case histories located inflowing gas and water entries across the lateral section. The emerging trend of drilling and completing long horizontal laterals in unconventional shale gas formations leads to novel deployment techniques and measurements in order to efficiently measure data across these producing lateral sections.

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Shale Gas Horizontal Production Logging Measurements and Challenges

Heddleston¹,

Haggerty²

2010

Tight Gas Completions Conference

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Traditional shale formations are presently being produced via horizontal well completions. These horizontal wells consist of numerous selectively stimulated stages containing as many as 20 stages spread out across 2000 ft to 9000 ft interval.The well completions have been stimulated using low technology methods such as high volume water / slick water & sand. The initial production of the well requires a short period of flowback of the injected load water prior to the wells being kicked off with hydrocarbon production. The load water flowback can range from as little as 2% load return as high as 70% returns. Since these types of formations are far from being homogeneous, these horizontal laterals can intersect existing natural fractures or faults in the formation or an aggressive stimulation could induce fractures into existing natural fracture or faulting network. This paper will showcase horizontal well production logging measurements ideal for this flowing environment in order to deliver a high confidence, representative flow profile. In addition, deployment techniques & the logging challenges will be discussed to establish the best possible representative flowing environment for measuring these types of well completions.

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New Fullbore Production Logging Sensor Improves the Evaluation of Production in Deviated and Horizontal Wells

Cited by 5 publications

References 4 publications

Production Logging in Horizontal Wells: Different Deployment and Data Acquisition Methodologies in Open-Hole and Cased Completions

Production Logging in Horizontal Wells: Different Deployment and Data Acquisition Methodologies in Open-Hole and Cased Completions

Horizontal Well Production Logging Deployment and Measurement Techniques for US Land Shale Hydrocarbon Plays

Shale Gas Horizontal Production Logging Measurements and Challenges

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