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Directional survey

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Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference and Exhibition, March 1–3, 2016
Paper Number: SPE-178843-MS
... and weighting these terms appropriately. Current Situation In an unpublished study of multiple directional survey databases (including both operators and service companies) it was discovered that less than 1 in 5 models in use were, in fact, ISCWSA model compliant. Many of the non-compliant models were...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, February 21–23, 2022
Paper Number: IPTC-22218-EA
... drilling measurement directional drilling tvd uncertainty reservoir characterization measurement while drilling upstream oil & gas drilling data acquisition drilling operation stationary mwd survey borehole deviation borehole trajectory mwd survey well placement tvd calculation...
Journal Articles
OIJ 2021 (08): 30–35.
Paper Number: OIJ-2021-08-030-035-RU
Published: 01 August 2021
...O. V. Zhdaneev; A. V. Zaitsev; S. F. Konovalov; A. E. Semenov The article provides information on the development of accelerometers for directional surveying of oil and gas wells capable of operating under dynamic influences (shock, vibration and temperature) arising during the drilling process...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-2636-MS
... hydraulic fracturing trajectory design curvature complex reservoir upstream oil & gas lateral gun barrel plot survey point well planning drilling operation modeling calculation tortuosity wellbore tendency placement ellipse fracture directional drilling curve rate nudge...
Proceedings Papers

Paper presented at the SPE/IADC International Drilling Conference and Exhibition, March 5–7, 2019
Paper Number: SPE-194179-MS
... if the intent is for the same operators to know how to perform validation of directional surveys against those models as suggested in recent literature ( Sawaryn 2017 ). These gaps can be filled with minor modifications to the existing positional uncertainty model framework: 1) Include a list of quality...
Journal Articles
J Pet Technol 69 (11): 50–52.
Paper Number: SPE-1117-0050-JPT
Published: 01 November 2017
...Chris Carpenter This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 181772, “Optimizing Lateral Well Spacing by Improving Directional-Survey Accuracy,” by Shawn DeVerse, Surcon, and Stefan Maus, Magnetic Variation Services, prepared for the 2016 SPE...
Proceedings Papers

Paper presented at the Offshore Mediterranean Conference and Exhibition, March 29–31, 2017
Paper Number: OMC-2017-636
... the formation tops used as control points to calibrate seismic horizons and reservoir boundaries into the 3D reservoir structural model. A workflow is proposed to take into account the uncertainties related to the directional surveys during reservoir structural modelling. A set of probable wellbore...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, November 14–16, 2016
Paper Number: IPTC-18761-MS
... Abstract Optimal wellbore placement and collision avoidance requires accurate real-time steering of directional wells. Uncertainties in the wellbore position are accounted for by industry standard error models. However, these error models are only valid if the directional surveys are quality...
Proceedings Papers

Paper presented at the SPE Liquids-Rich Basins Conference - North America, September 21–22, 2016
Paper Number: SPE-181772-MS
... uncertainty. It is common to ignore the contribution that inaccurate directional surveying has on lateral wellbore spacing. The purpose of this paper is to demonstrate how inaccuracy in standard directional surveying methods impacts wellbore position and to recommend practices to improve surveying accuracy...
Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology Conference, August 22–24, 2016
Paper Number: SPE-180652-MS
... Standard directional surveying practices are subject to numerous error sources which can cause inaccurate placement of the wellbore. This is problematic because inaccurate wellbore placement increases collision risk, reduces reservoir drainage, and impacts subsurface models. Web-based software...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, August 1–3, 2016
Paper Number: URTEC-2458828-MS
... interface azimuth axial magnetic interference error coefficient urtec 2458828 Summary Directional surveys acquired by Measurement While Drilling (MWD) are subject to many errors that are not easily recognized by traditional Quality Control (QC) procedures. This commonly leads to inaccurate...
Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition, November 13–15, 2006
Paper Number: SPE-103734-MS
... to apply the necessary operational procedures may be commonplace, raising questions about the reliability of the survey data so generated. Directional survey data that does not conform to its model’s predictions represents a risk in terms of lost production, damage to infrastructure and loss of life...
Proceedings Papers

Paper presented at the SPE/IADC Indian Drilling Technology Conference and Exhibition, October 16–18, 2006
Paper Number: SPE-102044-MS
... The WITSML standard is now acknowledged as the industry standard for exchanging well site data between companies and has contributed to an easier access to specific data types from the different services companies’ acquisition systems. Current workflow The directional survey data...
Proceedings Papers

Paper presented at the SPE International Petroleum Conference and Exhibition in Mexico, February 10–12, 2002
Paper Number: SPE-74398-MS
... and temperature. These factors have led PEMEX to seek out new technology in an effort to optimize drilling and producing operations. One of the special projects defined for the year 2001 was to evaluate the application of running a high-accuracy gyroscopic directional survey instrument in tandem with PEMEX...
Journal Articles
SPE Drill & Compl 7 (02): 100–106.
Paper Number: SPE-20931-PA
Published: 01 June 1992
... in three dimensions by integrating measured components of the acceleration of the body mathematically. A conventional directional survey system measures inclination and azimuth angles at stations along the wellbore; positions are calculated from these angles and from measured depths by assuming some shape...
Journal Articles
J Pet Technol 41 (12): 1250–1252.
Paper Number: SPE-19462-PA
Published: 01 December 1989
...John L. Thorogood "‘A dialog must take place between drilling engineers and the end user because survey programs cannot be constructed in isolation without reference to cost, instrument capabilities, and operational practicalities."practicalities." Introduction Directional surveying usually...
Journal Articles
SPE Drill & Compl 2 (03): 257–267.
Paper Number: SPE-15462-PA
Published: 01 September 1987
...Olivier Dubrule; Philip H. Nelson Summary More than 1,000 directional surveys from wells in the Prudhoe Bay field are used to examine differences in well location at 8,000 ft [2438 m] subsea, as measured by gyroscopic and magnetic surveying instruments. The lateral, radial, and vertical errors...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–29, 1982
Paper Number: SPE-11169-MS
... gyrocompassing has been developed in its own right as a means to obtain directional survey data. The benefits of this approach are that an extremely rugged and reliable sensor can be built into a 1-¾" o.d. pressure housing as opposed to the 3-5/8' to 10-5/8" pressure housings necessary to contain currently...
Journal Articles
J Pet Technol 33 (12): 2351–2362.
Paper Number: SPE-10055-PA
Published: 01 December 1981
...Tommy M. Warren Summary A relief well was drilled to intersect the casing of a blowout well at 13,500 ft (4115 m) total vertical depth (TVD). During drilling, numerous directional surveys were run on the relief well. These surveys have been analyzed to determine the error associated with each. Both...
Journal Articles
SPE J. 13 (01): 5–11.
Paper Number: SPE-3664-PA
Published: 01 February 1973
...W.A. Zaremba A method for computing directional surveys is presented that eliminates the abrupt changes in presented that eliminates the abrupt changes in direction of the tangent to wellbore. For any well course not located in a single plane the twist of the representing curve will still...

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