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1.5 Drill Bits

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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1660
... of the bit for different air inlet amounts as 0.1225 kg/s, 0.5 kg/s, 1.0 kg/s, and 1.5 kg/s. The RC performance of a hammer bit can be evaluated by the high negative pressure inside the drill bit and the high suction capacity of the system, as well as the air velocity distribution inside the drill bit...
Journal Articles
Petrophysics 62 (03): 230–243.
Paper Number: SPWLA-2021-v62n3t1
Published: 01 June 2021
...- techniques, new technology is also discussed in more detail. differential pressures, high-mud viscosity, large The new technology starts with the introduction of the (24 in.) boreholes, and improved reliability 1.5-in.-diameter rotary sidewall coring tools for deep water x New drill bits and catcher rings...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 7–10, 2016
Paper Number: SPE-183381-MS
... diameter technology bit in conjunction with directional 8¼ in. PDM (0.16 R/G, 7/8 lobes, 4 stages, 1.5 BH) BHA was tested in a directional application J-Shape well in Burgan Field, South of Kuwait. The bit was able to deliver improved performance by drilling the tangent section from 4345 ft to 6019 ft from...
Proceedings Papers

Paper presented at the SPWLA 61st Annual Logging Symposium, June 24–July 29, 2020
Paper Number: SPWLA-5002
...-strength wireline cables - New drill bits and catcher rings to utilize higher power and operate in harsh coring environments - Cutting and handling advancements for soft and hard formations - Combinability upgrades to reduce wireline trips - Dual-coring tools with the ability to have different catcher...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 26–29, 2020
Paper Number: SPE-201850-MS
... construction time via the use of new, improved technologies became one of the highest priorities. A few decades ago, due to the complex geological structure that characterized Belarus deposits, drilling was carried out mainly by the rotary-turbine method. This method used roller cone and impregnated bits...
Proceedings Papers

Paper presented at the 54th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2020
Paper Number: ARMA-2020-1606
... difference between PDCs and IDCs, ROP of analog hybrid bits can be promoted effectively, the optimal height difference between PDCs and IDCs for granite and quartz is respective 1–1.5 mm and 0.5–1 mm. Field drilling test of two full-size PDC-IDC hybrid bits in granite formation of JinShan block and quartzite...
Journal Articles
SPE Drill & Compl 1 (04): 267–276.
Paper Number: SPE-10960-PA
Published: 01 August 1986
...Warren J. Winters; T.M. Warren Summary Hydraulic lift can have a major effect on the operation of diamond drill bits. The actual weight on bit (WOB) is less than the measured weight by the amount of hydraulic lift, or pumpoff force, acting beneath the bit. Pumpoff forces greater than 15,000 lbf...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, January 19–22, 2014
Paper Number: IPTC-17486-MS
... in a 1.5-m target window. The RSS, in contrast, provides both the survey and azimuthal gamma ray sensor only about 2 m behind the bit, which allows better well control and early bed boundary detection for the steering of the well. 6 IPTC 17486 Fig. 6 The RSS improves drilling efficiency. Furthermore...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29457-MS
... wells, including 75,000 offshore wells drilled worldwide since 1980 with nearly 5 million total bottomhole assembly (BHA) runs from over 100 countries. Since 2009, over 1.5 million BHA runs drilling 2.6 billion feet of formation have been captured. Being able to visualize and understand the drilling...
Proceedings Papers

Paper presented at the SPE Unconventional Gas Conference and Exhibition, January 28–30, 2013
Paper Number: SPE-164028-MS
... drilling parameters and improved drilling practices. The new PDC bit design broke its own field record by 30%, achieving an average run ROP of 47 m/hr, saving the customer 1.5 days over the field average and USD 53,000. Field B is an exploration deep gas field, which considered to be challenging...
Proceedings Papers

Paper presented at the Offshore Technology Conference Asia, March 20–23, 2018
Paper Number: OTC-28457-MS
... reduction in stuck events when using a bit reamer. Table 1 Application Results of Expandable Reamer in Halite Formation Wellname 16 Hole length (m) Stuck Caused NPT(d) Synthetic Based Drilling Fluid Bit Reamer X-5 1525 3.1 None None X-9 1766 11.7 None None X-40 1253 2.2 Yes 9.5 Dog sub X-41 645 1.5 Yes 9.5...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 5–8, 1997
Paper Number: SPE-38581-MS
...). It is anticipated that with development of this technology, drilling penetration rates in the harder, slower drilling formations in gas and oil wells could be increased 1.5 to 2 times through jet-assist of the drill bit. As with the first generation prototype DHP, the ultra-high pressure pump is designed...
Proceedings Papers

Paper presented at the Middle East Drilling Technology Conference & Exhibition, October 26–28, 2009
Paper Number: SPE-125858-MS
... and then trip out for PDC bit to continue drilling this section to 10,326 ft. The 7-in. casing was run, but, became stuck as a result of high dogleg and cemented at 9,746 ft MD. The 6-in. lateral section was drilled with 8.8- to 9.5-lbm/gal brine water using a 1.5° geosteering assembly with vibration tools...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 2010
Paper Number: OTC-20370-MS
... was set at 13,100ft, building angle up to 27° with a 1.5° DLS. Tangent was held for 4500ft before dropping back to vertical with the casing set at 20327ft. The drilling team elected to use a 12-1/4 PDC bit coupled with an under-reamer to open the hole up to 14-3/4 to avoid the problems with salt creep...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 26–28, 2015
Paper Number: SPE-176506-MS
... top hole sections are covered by permafrost rocks. The expected drilling time reduction in surface casing sections can be from 1.5 to 2.0 times. In terms of economics, it should be noted that this method deliveres reduced tool operating times, eliminates the need for conventional bits, reduced rig...
Proceedings Papers

Paper presented at the SPE Oil and Gas India Conference and Exhibition, April 4–6, 2017
Paper Number: SPE-185436-MS
... directional hole section with dogleg severity (DLS) upto from 1.5°/100 feet. This study presents a novel directional drilling strategy utilized in a deep offshore oil well with high inclination for achieving the challenge imposed by setting the casing shoe in limestone formation, deepest in the region (~8000...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference, February 23–25, 2000
Paper Number: SPE-59259-MS
... been clearly recognized. In China, a large part of reserves can be developed with horizontal well technology. By the end of 1997, there were totally 160 horizontal wells drilled in 14 oilfields on land. 1 The drilling cost of horizontal well has been reduced by 1.5~2 times of vertical wells. ERD...
Proceedings Papers

Paper presented at the Offshore Technology Conference-Asia, March 25–28, 2014
Paper Number: OTC-25024-MS
... of international operator is 1.7 times of local operator, but on bottom ROP is 1.5 times faster than local operator. Both operators' drilling efficiency has average 70% improve which based on previous 3 years learning curves. Local operator tries to factory drill 6 wells per pad with 300m well spacing and 8 wells...
Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology, September 9–11, 2002
Paper Number: SPE-77223-MS
... of friction from 55 to 75°, encountered from 200–400 ft into the Unayzah is extremely hard to drill. ROP's in this section are commonly limited to 0.5 to 1.5 fph. Up to 21 TCI, PDC and TSP bits have been required to drill the longer Unayzah sections, which can be up to 1300 ft. in thickness. Numerous bearing...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, September 9–11, 2003
Paper Number: SPE-80476-MS
.... The hole was drilled using an 8½" bit and was concurrently opened up to 9 " using the NBR. The well trajectory had a 3D profile, and exhibited controlled dogleg severity ranging from 3 to 8° per 100 feet while employing a 1.5° bent sub and a rotational speed of 100 RPM. An additional requirement...

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