Identifying Inefficient Drilling Conditions Using Drilling-Specific Energy

Armenta, Miguel

doi:10.2118/116667-ms

Cited by 70 publications

(17 citation statements)

References 8 publications

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“…MSE, MSE adj and Drilling Specific Energy (DSE) are also useful for monitoring drilling efficiency, as has been reported by a number of authors (Pessier, et al, 1992;Armenta, 2008). Figure 7 provides a compelling example of how MSE adj changes with both rock strength and dull condition.…”

Section: Active Management Of Operating Parametersmentioning

confidence: 78%

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A Systematic Approach to Performance Drilling in Hard Rock Environments

2011

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The Haynesville shale gas play in North Louisiana poses a number of significant technical challenges. One of the most daunting is penetrating the hard, abrasive Hosston sandstone-shale sequence and hard Knowles limestone in the intermediate section of the overburden. The high strength and interbedded nature of these formations trigger bit and drillstring vibration that can lead to short, slow bit runs and unacceptably high cost per foot.The operator applied a systematic Drilling Efficiency Optimization (DEO) approach encompassing well planning, well execution and post-well analysis to drive performance improvement through these formations. Optimization efforts focused on polycrystalline diamond compact (PDC) bit design, bit hydraulics, positive displacement motor (PDM) selection, soft torque rotary system (STRS) utilization, bottom hole assembly (BHA) design and active management of drilling parameters. Combined, these efforts reduced cost per foot and days per thousand feet by over 50% while drilling approximately 70 wells over a two year period.

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Section: Active Management Of Operating Parametersmentioning

confidence: 78%

“…Studies have shown that maintaining high levels of hydraulic horsepower can lower the mechanical specific energy and yield improved performance, even in hard rock environments (Armenta, 2008;Holster, et al, 1984;.…”

Section: Identifying and Mitigating Performance Limitersmentioning

confidence: 99%

A Systematic Approach to Performance Drilling in Hard Rock Environments

2011

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“…The analysis of this parameter is helpful when optimizing the process of drilling as it allows to detect sections where the drilling was inefficient. MSE is given with the following formula [1]:…”

Section: Theoretical Backgroundmentioning

confidence: 99%

Drillability and Mechanical Specific Energy analysis on the example of drilling in the Pomeranian Basin

Wiśniowski¹,

Knez²,

Hytroś³

2015

drill

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“…In 2008, Armenta [2] proposed DSE as a modified MSE to correct higher values of MSE by adding a bit hydraulic term. DSE can be expressed as the total work input to drill and remove a unit volume of the rock from underneath the bit.…”

Section: Equationmentioning

confidence: 99%

Reservoir Characteristics Interpretation by Using Down-Hole Specific Energy With Down-Hole Torque and Drag

2015

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The cost reduction has become the most challenge in oil and gas exploration. Many technologies have been developed to optimize the drilling and completion operation. One of the solutions is to reduce the cost of perforation. Although, well logging, neutron porosity, resistivity and gamma ray, can indicate the suitable zone for perforation, there still have some perforated zones which cannot be the production zones due to insufficient pressure of reservoir for the production. Thus, the more accurate decision chosen for the perforated zone will reduce well completion cost.Specific energy is referred to work input to drill a volume of rock and also used to determine the drilling efficiency by comparing with confined compressive strength (CCS). For the perfect drilling operation, down-hole specific energy should be equal to CCS. One of the parameters, which lead the fluctuation in down-hole specific energy is inlet pressure from reservoir. The zone which has higher down-hole specific energy than other zones at the same lithology will have a drilling problem. Thus, the zone which can be the reservoir from well logging data with drilling problems is possible a potential production zone.The combination of results from the down-hole specific energy and the well logging data can bring more accurate decision in choosing the perforated zone by avoiding the low potential zone. However, a down-hole specific energy calculation needs down-hole torque (DTOR) and weight on bit (DWOB) data, which requires additional budget for measurement using the commercial sensor, thus the friction calculation is preferred to save the budget. In this research, the friction analysis will base on Aadnoy et al [1] and Hareland et al [4] models was used to calculate DWOB.The assumption of down-hole specific energy was verified using data from two wells in Thailand to calculate the potential zone. The results showed the zone which have been chosen from both of logging and down-hole specific energy can be the production zone and the zone which only chosen from logging data may be a non-potential zone.

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Identifying Inefficient Drilling Conditions Using Drilling-Specific Energy

Cited by 70 publications

References 8 publications

A Systematic Approach to Performance Drilling in Hard Rock Environments

A Systematic Approach to Performance Drilling in Hard Rock Environments

Drillability and Mechanical Specific Energy analysis on the example of drilling in the Pomeranian Basin

Reservoir Characteristics Interpretation by Using Down-Hole Specific Energy With Down-Hole Torque and Drag

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