High Performance, Slim-hole Drilling with 4 in. Drill Pipe and a Streamline 
Connection

Plessis, Guillaume; Andre, Glowacz; Pasnak, John; Jellison, Michael J.

doi:10.2523/88702-ms

Cited by 2 publications

(2 citation statements)

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“…Slim holes and large-diameter wells at geothermal fields were analyzed in order to establish the relationships (1) between in hole diameter and well bore instability, (2) between discharge capacity of slim holes and largediameter wells [26]. Actually in some cases with discharge data from slim holes due to the non-uniform internal diameter for largediameter wells, so this fact can effect on scaling simulation and it is not possible to use a simple scaling rule to relate the discharge capacities of slim holes and large-diameter wells when our problems cooperate with thermal interaction.…”

Section: History Of Slim Holementioning

confidence: 99%

Feasibility of Using Laser Bit Beside of Common Bits to Drilling Slim Holes

et al. 2013

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The capability level of rotary as well as first generation drilling operation could not be matched for deeply drilling programs. To reach that deep, the increasing in drill string length could also cause an additional constraint on hydraulic performance. The operation of slim hole drilling has significant potential to reduce well costs. This cost might be savings are especially important with increased demand for reduced capital finance under current economic conditions in the Iranian oil and gas industry. This savings achievement could be caused by use of smaller drilling rigs, work over rigs, reduced casing size, reducing requirement for drilling consumables and other costs associated with hole size. Otherwise, using laser irradiation for drilling operation can save cost little more higher look like do not using casing and perforation in reservoir layer for slim hole which are drilled by high power laser systems. As the matter of fact, Cost savings achieved from slim hole drilling could be offset by inability to effectively transmit the weight to the bit, increased mechanical failures of drill pipes and tools and reduced the well bore instability effects in particular, in drilling operation at greater depths This paper investigates the effects of borehole parameters during laser drilling operations in the case of slim hole.

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Section: History Of Slim Holementioning

confidence: 99%

Feasibility of Using Laser Bit Beside of Common Bits to Drilling Slim Holes

et al. 2013

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“…drill pipe providing a step-change in drilling efficiency on critical wells. (9),(10), (11), (12), (13) Simply stated, 2 nd Gen DSC's have streamlined connection dimensions enabling one pipe size larger to be run in the same hole size dramatically improving hydraulic efficiency while maintaining equivalent overshot fishability.…”

Section: Evolution Of Double-shoulder Connectionsmentioning

confidence: 99%

Drill Faster, Deeper, and Further With Ultrahigh-Torque, Third-Generation Double-Shoulder Connections

Chandler¹,

Muradov²,

Jellison³

et al. 2007

Proceedings of SPE/IADC Drilling Conference

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TX 75083-3836 U.S.A., fax 1.972.952.9435. AbstractNew developments in drilling tubulars are rapidly evolving and represent enabling technologies for the industry's continued advancement of drilling deeper, further and more cost-effective wells. Much focus has been made toward the advancement of drill pipe connection technology to permit high torque drilling of extended reach, directional and horizontal wells. First and second generation high torque connections have been available to the industry for several years.In today's rig market; deepwater, extended reach and ultradeep wells dictate large spread rates that can benefit significantly from reduced tripping times. These same wells often have mechanical and hydraulic load requirements for which today's high torque connections may not be specifically optimized.In response to this need, the development of third generation, ultra-high torque connections is now complete. This paper will present the results of a 2-1/2 year comprehensive effort to design, test, manufacture and field trial a family of connections that were engineered to meet the specific needs of each drill pipe size. Results from extensive laboratory tests and two field trial programs designed to produce harsh, aggressive dynamic loads to the connections are presented.The thread form is a double-start thread that reduces the number of revolutions to assemble the connection by 50%. The thread form also provides a unique dual-radius thread root that offers a step change improvement in fatigue resistance. Conservative estimates suggest that the new connections will save approximately 7-1/2 hours in planned trip time per 20,000 ft well. The new connections provide increased mechanical and hydraulic performance compared to second generation high torque connections while also providing fatigue performance greater than standard API connections.These connections can facilitate more challenging wells, provide increased cost savings and reduce risk during the well construction process.

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High Performance, Slim-hole Drilling with 4 in. Drill Pipe and a Streamline Connection

Cited by 2 publications

References 0 publications

Feasibility of Using Laser Bit Beside of Common Bits to Drilling Slim Holes

Feasibility of Using Laser Bit Beside of Common Bits to Drilling Slim Holes

Drill Faster, Deeper, and Further With Ultrahigh-Torque, Third-Generation Double-Shoulder Connections

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