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Keywords: drill collar
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Journal Articles
J Pet Technol 64 (04): 94–98.
Paper Number: SPE-0412-0094-JPT
Published: 01 April 2012
... Upstream Oil & Gas back side ROV BOP stack accumulator pressure operation well control equipment piston multifunction interface drilling jar accumulator valve environmental pressure Drilling Equipment drill collar shearable drill collar torque function april 2012 post-macondo bop...
Journal Articles
J Pet Technol 63 (06): 76–78.
Paper Number: SPE-0611-0076-JPT
Published: 01 June 2011
... a well is being drilled, the drillpipe is exposed to high stresses, and it is exposed to both formation fluids and drilling mud. Thick-walled drillpipes are called drill collars. They contain electronic chassis and other measurement tools on the annular side and provide weight to the bit for drilling...
Journal Articles
Journal Articles
J Pet Technol 57 (05): 71–73.
Paper Number: SPE-0505-0071-JPT
Published: 01 May 2005
... operation transmit data conduit drillstring dynamics mwd lwd tool drilling operation drill collar Wellbore Tubulars Intelligent-Drillstring Field Trials Intelligent-drillstring components capable of transmitting data at rates as high as 2 Mbit/sec have been developed and successfully tested...
Journal Articles
J Pet Technol 53 (05): 36–38.
Paper Number: SPE-0501-0036-JPT
Published: 01 May 2001
... drillpipe drilling equipment fingerboard roughneck discoverer enterprise efficiency casing and cementing drill collar assembly pipe-racking system drilling operation range 3 Pipehandling Technology increases Casing-Running Efficiency 36 MAY 2001 T u b u la r U p d a t e T u b u la r U p d a t...
Journal Articles
J Pet Technol 51 (02): 44–45.
Paper Number: SPE-0299-0044-JPT
Published: 01 February 1999
..._ JPT staff This article is a synopsis of paper SPE 49204, "Torsional Resonance of Drill Collars with PDC Bits in Hard Rock," by T.M. Warren, SPE, and J.H. Oster, Amoco E&P Technology Group, prepared for the 1998 SPE Annual Technical Conference and Exhibition, New Orleans, 27-30 September...
Journal Articles
J Pet Technol 50 (02): 34.
Paper Number: SPE-0298-0034-JPT
Published: 01 February 1998
... of the drillpipe. Metallurgical properties, such as chemical composition and microstructure, can be manipulated to optimize resistance to heat checking. FAILURES Tool-Joint Box. Any downhole component (e.g., drillpipe, drill collars, crossovers, jars, stabilizers) are susceptible to heat checking. However, many...
Journal Articles
J Pet Technol 46 (08): 657.
Paper Number: SPE-28220-PA
Published: 01 August 1994
...Roy L. Dudman Drillstring failures can be prevented by drilling a straight, useful hole free of severe doglegs with larger-than-normal drillstring components. The maximum drill-collar diameters shown in the Lubinski tables in the IADC Drilling Manual , Sec. P1, 1 for straight-hole drilling...
Journal Articles
J Pet Technol 45 (02): 108–115.
Paper Number: SPE-24611-PA
Published: 01 February 1993
... drill collar drilling operation curve assembly curve-drilling assembly deflection sleeve assembly patent orientation diameter composite pipe wellbore directional drilling reamer lateral drilling system articulated collar counterclockwise Summary. This paper describes the development...
Journal Articles
J Pet Technol 44 (03): 354–359.
Paper Number: SPE-21957-PA
Published: 01 March 1992
... arm drilling equipment drillpipe well center personnel drill collar pipe upstream oil & gas Summary. The development of pipe-racking equipment on offshore rigs is reviewed. A method is devel- oped to evaluate the economic return on investment. Using an available industry-computer program...
Journal Articles
J Pet Technol 40 (08): 975–983.
Paper Number: SPE-17211-PA
Published: 01 August 1988
... included in the 1987 edition of the RP 7G. This paper deals with research conducted up to June 1986 to prepare the new API text and after June 1986. Simplified System For explanatory purposes, consider an oversimplified system of Fig. la, consisting of drillpipe only with no drill collars, tool joints...
Journal Articles
J Pet Technol 37 (07): 1231–1238.
Paper Number: SPE-12360-PA
Published: 01 July 1985
... drill collar sensor correlation bed resolution drilling application computer downhole tool formation data gamma ray gamma ray log upstream oil & gas resistivity resolution nl industry inc wireline log log analysis ewr sensor surface computer well logging Recording Downhole...
Journal Articles
J Pet Technol 37 (07): 1315–1317.
Paper Number: SPE-13386-PA
Published: 01 July 1985
...-Chamber DST A northwest Alberta well, Well 6–4-65–20W5, had a straddle-packer DST run at a depth of 5,653 ft [1720 m] in 7 7/8-in. [200-mm] hole with 442 ft [134.7 m] of 2.875-in.- [73-mm]-ID drill collars. A 9.1-lbm/gal [1090-kg/m 3 ] gel chemical mud resulted in an initial and final hydrostatic mud...
Journal Articles
J Pet Technol 36 (04): 637–644.
Paper Number: SPE-11228-PA
Published: 01 April 1984
...Don W. Dareing Dareing, Don W., SPE Summary Drill collar length directly affects the overall vibration response of drillstrings. Drill collar length is partly responsible for severe vibrations in hard rock drilling but can also be the solution to vibration control. This paper gives a new...
Journal Articles
J Pet Technol 35 (05): 899–904.
Paper Number: SPE-10058-PA
Published: 01 May 1983
.... JPT P. 899 1 5 1983 1 5 1983 1 5 1983 1 5 1983 1983. Society of Petroleum Engineers drill collar measurement while drilling gamma log drilling measurement downhole sensor mwd experimental downhole sensor north sea differential mud resistivity upstream oil...
Journal Articles
J Pet Technol 34 (12): 2888–2898.
Paper Number: SPE-8158-PA
Published: 01 December 1982
... to induce coded pressure pulses in the mud.The MWD system consists of a downhole assemblycontaining a sensor and transmitter mounted in anonmagnetic drill collar (Fig. 1) and surface displayequipment (Fig. 2) located on the drilling platform. The collaris a self-contained unit that remains...
Journal Articles
J Pet Technol 34 (10): 2377–2383.
Paper Number: SPE-9649-PA
Published: 01 October 1982
... on the behavior in the plastic state. SPEJ P. 883^ journal of petroleum technology drillstring design kickoff assembly upstream oil & gas assembly large-diameter hole kickoff rate distribution average buildup speed average rop mud motor drill collar bent sub stabilizer marine operating co...
Journal Articles
J Pet Technol 34 (07): 1421–1430.
Paper Number: SPE-9227-PA
Published: 01 July 1982
... are subjected to severe abrasive wear that limits useful life. 1 7 1982 1 7 1982 1 7 1982 1 7 1982 1982. Society of Petroleum Engineers inclination correction borehole fenton hill turbodrill downhole motor drill collar drilling equipment drillstring design orientation...
Journal Articles
J Pet Technol 34 (07): 1431–1436.
Paper Number: SPE-9688-PA
Published: 01 July 1982
... 1 7 1982 1 7 1982 1982. Society of Petroleum Engineers supervisor liner drillpipe drill collar drilling operation well plan cement personnel concentration mud weight mesa petroleum co selection stability kpa hunton zone completion operation stabilizer hole size...
Journal Articles
J Pet Technol 34 (04): 859–861.
Paper Number: SPE-9607-PA
Published: 01 April 1982
... rate forutn pressure rating stator upstream oil & gas drilling operation packer dm 3 test string stabilizer drillstem testing drilling equipment navi-drill tm rotor infonnation field trial drill collar drillstem/well testing downhole pump mud motor petroleum development oman...

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