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1. (WO2018144170) OPTIMAL TRAJECTORY CONTROL FOR ROTARY STEERABLE SYSTEMS



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INTERNATIONAL SEARCH REPORT (ISR)
Part 1:  1  2  3  4  5  6          Part 2:  A  B  C  D  E 
International application No. Applicant's or agent's file reference
PCT/US2017/069076 1640-558099
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
29 December 2017 31 January 2017
Applicant
HALLIBURTON ENERGY SERVICES, INC.
FOR FURTHER ACTION: See Form PCT/ISA/220 as well as, where applicable, item 5 below.
This international search report has been prepared by this International Searching Authority and is transmitted to the applicant according to Article 18. A copy is being transmitted to the International Bureau.
It is also accompanied by a copy of each prior art document cited in this report.
1. Basis of the report
a. With regard to the language, the international search was carried out on the basis of:
the international application in the language in which it was filed.
a translation of the international application into                                          which is the language of a translation furnished for the purposes of international search (Rules 12.3(a) and 23.1(b)).
b.
This international search report has been established taking into account the rectification of an obvious mistake authorized by or notified to this Authority under Rule 91 (Rule 43.6bis(a)).
c.
With regard to any nucleotide and/or amino acid sequence disclosed in the international application, the international search was carried out on the basis of a sequence listing:
2. Certain claims were found unsearchable
3. Unity of invention is lacking
4. Title of the invention
The text is approved as submitted by the applicant.
The text has been established by this Authority to read as follows:
5. Abstract
The text is approved as submitted by the applicant.
The text has been established, according to Rule 38.2, by this Authority as it appears in Box No. IV. The applicant may, within one month from the date of mailing of this international search report, submit comments to this Authority.
6. Drawings
a.
The figure of the drawings to be published with the abstract is Figure No.     1    
as suggested by the applicant.
as selected by this Authority, because the applicant failed to suggest a figure.
as selected by this Authority, because this figure better characterizes the invention.
b.
none of the figures is to be published with the abstract.

A. CLASSIFICATION OF SUBJECT MATTER

     E21B 7/06 (2006.01)i; E21B 44/00 (2006.01)i
According to International Patent Classification (IPC) or to both national classification and IPC

B. FIELDS SEARCHED

Minimum documentation searched (classification system followed by classification symbols):
Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched:
Korean utility models and applications for utility modelsJapanese utility models and applications for utility models
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used):
eKOMPASS(KIPO internal) & Keywords: directional drilling, cost function, penalty condition, current position, reference position, error, waypoint, update, optimal trajectory

C. DOCUMENTS CONSIDERED TO BE RELEVANT

Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
(1)
X
US 2016-0186551 A1 (HALLIBURTON ENERGY SERVICES INC.) 30 June 2016 See paragraphs [0014]-[0020], [0025], [0059]-[0068] and figures 1, 6, 7.
1-20
(2)
A
US 2014-0305704 A1 (HUNT ADVANCED DRILLING TECHNOLOGIES, L.L.C.) 16 October 2014 See paragraphs [0043]-[0047] and figure 2A.
1-20
(3)
A
US 2010-0185395 A1 (PIROVOLOU et al.) 22 July 2010 See paragraphs [0028], [0035]-[0038] and figures 1, 4.
1-20
(4)
A
US 2013-0140037 A1 (SEQUEIRA, JR. et al.) 06 June 2013 See paragraphs [0085]-[0098] and figures 5-8.
1-20
(5)
A
US 2006-0151214 A1 (PRANGE et al.) 13 July 2006 See paragraphs [0052]-[0056], [0071]-[0073] and figures 4-8.
1-20
*
Special categories of cited documents:
"A"
document defining the general state of the art which is not considered to be of particular relevance
"E"
earlier application or patent but published on or after the international filing date
"L"
document which may throw doubts on priority claim(s) or which is cited to establish the publication date of another citation or other special reason (as specified)
"O"
document referring to an oral disclosure, use, exhibition or other means
"P"
document published prior to the international filing date but later than the priority date claimed
"T"
later document published after the international filing date or priority date and not in conflict with the application but cited to understand the principle or theory underlying the invention
"X"
document of particular relevance; the claimed invention cannot be considered novel or cannot be considered to involve an inventive step when the document is taken alone
"Y"
document of particular relevance; the claimed invention cannot be considered to involve an inventive step when the document is combined with one or more other such documents, such combination being obvious to a person skilled in the art
"&"
document member of the same patent family

D. INFORMATION ON PATENT FAMILY MEMBERS

Patent document cited in search report Publication date
(day/month/year)
Patent family member(s) Publication date
(day/month/year)
US 2016-0186551 A1
30 June 2016
AU 2013-402452 B2
AU 2013-402452 A1
CA 2920959 A1
CN 105492722 A
DE 112013007492 T5
GB 2534702 B
GB 2534702 A
MX 2016002550 A
NO 20160224 A1
WO 2015-053782 A1
15 December 2016
03 March 2016
16 April 2015
13 April 2016
14 July 2016
26 April 2017
03 August 2016
26 October 2016
10 February 2016
16 April 2015
US 2014-0305704 A1
16 October 2014
AU 2012-355718 B2
AU 2012-355718 A1
AU 2013-278048 A1
AU 2013-278048 B2
AU 2015-327808 A1
CA 2964639 A1
CA 2877793 A1
CA 2868241 A1
CA 2967324 A1
EP 2795058 A2
EP 2864572 A2
EP 3201432 A1
EP 3207214 A1
MX 2014007743 A
MX 2015000192 A
US 8210283 B1
US 8596385 B2
US 8794353 B2
US 9157309 B1
US 9297205 B2
US 9347308 B2
US 9404356 B2
US 9428961 B2
US 9494030 B2
US 2013-0161096 A1
US 2013-0161097 A1
US 2014-0131102 A1
US 2015-0233229 A1
US 2015-0275646 A1
US 2015-0377003 A1
US 2016-0024847 A1
US 2016-0032705 A1
US 2016-0177699 A1
US 2016-0251900 A1
US 2016-0265336 A1
US 2016-0305230 A1
US 2016-0362971 A1
WO 2016-060903 A1
WO 2013-095974 A2
WO 2013-095974 A3
WO 2013-192524 A2
WO 2013-192524 A3
WO 2016-054586 A1
03 September 2015
17 July 2014
22 January 2015
19 January 2017
20 April 2017
21 April 2016
27 December 2013
27 June 2013
07 April 2016
29 October 2014
29 April 2015
09 August 2017
23 August 2017
04 February 2015
12 August 2015
03 July 2012
03 December 2013
05 August 2014
13 October 2015
29 March 2016
24 May 2016
02 August 2016
30 August 2016
15 November 2016
27 June 2013
27 June 2013
15 May 2014
20 August 2015
01 October 2015
31 December 2015
28 January 2016
04 February 2016
23 June 2016
01 September 2016
15 September 2016
20 October 2016
15 December 2016
21 April 2016
27 June 2013
20 March 2014
27 December 2013
07 August 2014
07 April 2016
US 2010-0185395 A1
22 July 2010
CN 101936134 B
CN 101936134 A
GB 2467214 B
GB 2467214 A
MX 2010000770 A
NO 20100101 A
01 April 2015
05 January 2011
18 April 2012
28 July 2010
30 September 2010
23 July 2010
US 2013-0140037 A1
06 June 2013
AU 2011-293804 B2
AU 2011-293804 A1
CA 2808078 A1
EP 2609540 A1
EP 2609540 A4
US 9593558 B2
WO 2012-027020 A1
11 August 2016
14 March 2013
01 March 2012
03 July 2013
06 December 2017
14 March 2017
01 March 2012
US 2006-0151214 A1
13 July 2006
CA 2728970 C
CA 2728970 A1
CA 2590767 C
CA 2590767 A1
EP 1825100 A2
MX 2007006993 A
NO 20073338 L
US 2009-0056935 A1
US 7684929 B2
US 7460957 B2
WO 2006-065915 A2
WO 2006-065915 A3
13 December 2016
22 June 2006
19 April 2011
22 June 2006
29 August 2007
07 August 2007
14 September 2007
05 March 2009
23 March 2010
02 December 2008
22 June 2006
03 August 2006
Name and mailing address of the ISA/:
Korean Intellectual Property Office
189 Cheongsa-ro, Seo-gu, Daejeon Metropolitan City, 302-701
Republic of Korea
Facsimile No. +82-42-481-8578
Date of the actual completion of the international search:
20 April 2018
Date of mailing of the international search report:
20 April 2018
Authorized officer:
LEE, Se Gyoung
Telephone No. +82-42-481-8740
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