PCD Technology Advances Sidetracking Capabilities

Childers, Ronald; Miller, Gregory E.

doi:10.2523/59185-ms

Cited by 5 publications

(3 citation statements)

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“…Successful sidetracks in Colombia, Oman and the U.S.A. (Texas, Louisiana, New Mexico and Colorado) have proven that this emerging technology can add economic viability to remedial wells, new wells and total field applications. 10 The PDC cutters are strategically located on the cutting profile of the sidetracking Lead mill. The precise location of the cutters is controlled by multiple axis machining processes.…”

Section: Pdc Mill Technologymentioning

confidence: 99%

Cost-Effective Recompletions of Fruitland Formation Coalbed Methane Gas Wells are Achieved With PDC Technology-Based One-Trip Sidetracking and Lateral-Drilling Technique

Nye¹,

Reid²,

Childers³

et al. 2001

All Days

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TX 75083-3836, U.S.A., fax 01-972-952-9435. AbstractSidetracking mills designed with PDC insert cutting structures were able to effectively mill a casing window and drill the required lateral in one trip. This new application of advanced PDC technology in Fruitland Formation coalbed methane gas wells provides cost and timesaving benefits. This progressive effort by the operator to improve efficiency and to optimize the recompletion procedures for San Juan Basin wells is furthering exploitation of hydrocarbon reservoirs. This paper discusses how mills designed with PDC inserts swiftly cut steel and drill formation to produce a lateral well bore from the mother bore. The technique reduces the number of trips, equipment, costs, and time required to recomplete the well. The operator is able to minimize loss of production on a downed well by getting the well back on-line sooner.Three case histories are presented that illustrate how this new technology and technique were first applied in the San Juan Basin and further developed through their utilization to recomplete coalbed methane gas wells.

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Section: Pdc Mill Technologymentioning

confidence: 99%

Cost-Effective Recompletions of Fruitland Formation Coalbed Methane Gas Wells are Achieved With PDC Technology-Based One-Trip Sidetracking and Lateral-Drilling Technique

Nye¹,

Reid²,

Childers³

et al. 2001

All Days

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“…The cylindrically shaped inserts are brazed into pockets milled into the mill cutting structure. The technique used to braze the inserts into the pockets has proved to be reliable and has greatly reduced the damaging effects caused from excessive heat from the welder's torch 1 .…”

Section: Introductionmentioning

confidence: 99%

Technical Improvements in Mill Profile Design and Cutting Structures: Case Histories and Developments

Voden¹,

Pfannenstiel²,

Matthews³

2005

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TX 75083-3836, U.S.A., fax 01-972-952-9435. AbstractThe ever increasing operator demands and objectives to mill fast and efficient windows has led to the development of innovative milling technology. New lead mill profiles and cutting structures have replaced old crushed carbide technology. The new design utilizes inserts brazed into pockets machined in the mill head. Mills dressed with the new cutting structure are able to effectively mill a casing window and drill formation rat hole in less time than it took with the welded-on crushed carbide technology.With this new design, operators are now afforded an option. In medium to hard formations, the new cutting structure can be used to mill the window and drill rat hole in one trip. While sidetracking in formations with high compressive strengths, Polycrystalline Diamond Compact (PDC) inserts can be utilized. The use of the new cutting structure in a one trip sidetrack system can result in substantial cost savings, improved milling reliability and a higher quality window.The combination of new cutting elements and mill profile has proved to be economically sound allowing for consistency of product manufacturing and has eliminated the potential variances inherent in the welding processes. The system design and cutting structure reduces torsional resistance providing for smoother in-gauged milled windows in one trip.This paper updates an earlier paper with the concepts of using the new cutting structure and presents the new technology and recent case histories of four sidetrack operations.

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“…The pitch varies according to the shape, size, and the window bit footage of the cutting teeth. 20,21 4. Cemented carbide teeth are arranged on the points of intersection of the equidistant helix and the window bit contour lines in the axialplanes of bit matrix ( Figure 4).…”

Section: Structural Characteristics Of Dual-effect Strong Side-cut Wimentioning

confidence: 99%

Research on cutting mechanics of window bit cutting teeth

Kong

Zheng

Zhang

et al. 2016

Advances in Mechanical Engineering

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According to structural characteristics of dual-effect strong side-cut window bit (hereinafter referred to as window bit) and the theory of metal cutting and the rule of teeth arrangement of window bit, a cutting mechanical model of window bit cutting teeth is established, window bit geometric equations deduced and the solution of the cutter cutting mechanical model completed; finally, the casing window experiment is conducted with the dual-effect strong side-cut window bit developed to verify the accuracy of the cutting mechanical calculation model and the simulation results. The results show that the variation tendency of the main cutting force of the bit and the experimental data are similar in the windowing process, the simulation results can accurately reflect the change rule of the main cutting force and the requirements of engineering applications are basically met. The research results of this article provide theoretical basis for the analysis and calculation of the cutting force of the window bit and can serve as a reference for the design of deep/ultra-deep well casing window bits and cutting mechanics research.

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PCD Technology Advances Sidetracking Capabilities

Cited by 5 publications

References 0 publications

Cost-Effective Recompletions of Fruitland Formation Coalbed Methane Gas Wells are Achieved With PDC Technology-Based One-Trip Sidetracking and Lateral-Drilling Technique

Cost-Effective Recompletions of Fruitland Formation Coalbed Methane Gas Wells are Achieved With PDC Technology-Based One-Trip Sidetracking and Lateral-Drilling Technique

Technical Improvements in Mill Profile Design and Cutting Structures: Case Histories and Developments

Research on cutting mechanics of window bit cutting teeth

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