Oriented perforations to prevent casing collapse for highly inclined wells

Nobuo Morita; H. O. McLeod

Oriented perforations to prevent casing collapse for highly inclined wells

Nobuo Morita, H. O. McLeod

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This paper shows that the oriented perforation technique is an effective method to control casing collapse problems for highly inclined wells. Three wells were perforated with 180 degree phasing in the maximum in-situ stress direction. These three wells did not induce casing collapse while surrounding wells with the standard perforation technique induced casing collapse. Two of these three wells with oriented perforations significantly reduced sand problems. Numerical analysis was conducted to compare how effective oriented perforations were to minimize casing failure when a sheared zone was created around a well during drilling and production.

Original language	English
Title of host publication	Proceedings - SPE Annual Technical Conference and Exhibition
Place of Publication	Richardson, TX, United States
Publisher	Society of Petroleum Engineers (SPE)
Pages	427-437
Number of pages	11
Volume	Pi
Edition	pt 2
Publication status	Published - 1994
Event	Proceedings of the SPE Annual Technical Conference & Exhibition - New Orleans, LA, USA Duration: 1994 Sep 25 → 1994 Sep 28

Other

Other	Proceedings of the SPE Annual Technical Conference & Exhibition
City	New Orleans, LA, USA
Period	94/9/25 → 94/9/28

ASJC Scopus subject areas

Geology
Geotechnical Engineering and Engineering Geology

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title = "Oriented perforations to prevent casing collapse for highly inclined wells",

abstract = "This paper shows that the oriented perforation technique is an effective method to control casing collapse problems for highly inclined wells. Three wells were perforated with 180 degree phasing in the maximum in-situ stress direction. These three wells did not induce casing collapse while surrounding wells with the standard perforation technique induced casing collapse. Two of these three wells with oriented perforations significantly reduced sand problems. Numerical analysis was conducted to compare how effective oriented perforations were to minimize casing failure when a sheared zone was created around a well during drilling and production.",

author = "Nobuo Morita and McLeod, {H. O.}",

year = "1994",

language = "English",

volume = "Pi",

pages = "427--437",

booktitle = "Proceedings - SPE Annual Technical Conference and Exhibition",

publisher = "Society of Petroleum Engineers (SPE)",

edition = "pt 2",

note = "Proceedings of the SPE Annual Technical Conference & Exhibition ; Conference date: 25-09-1994 Through 28-09-1994",

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T1 - Oriented perforations to prevent casing collapse for highly inclined wells

AU - Morita, Nobuo

AU - McLeod, H. O.

PY - 1994

Y1 - 1994

N2 - This paper shows that the oriented perforation technique is an effective method to control casing collapse problems for highly inclined wells. Three wells were perforated with 180 degree phasing in the maximum in-situ stress direction. These three wells did not induce casing collapse while surrounding wells with the standard perforation technique induced casing collapse. Two of these three wells with oriented perforations significantly reduced sand problems. Numerical analysis was conducted to compare how effective oriented perforations were to minimize casing failure when a sheared zone was created around a well during drilling and production.

AB - This paper shows that the oriented perforation technique is an effective method to control casing collapse problems for highly inclined wells. Three wells were perforated with 180 degree phasing in the maximum in-situ stress direction. These three wells did not induce casing collapse while surrounding wells with the standard perforation technique induced casing collapse. Two of these three wells with oriented perforations significantly reduced sand problems. Numerical analysis was conducted to compare how effective oriented perforations were to minimize casing failure when a sheared zone was created around a well during drilling and production.

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M3 - Conference contribution

AN - SCOPUS:0028556092

VL - Pi

SP - 427

EP - 437

BT - Proceedings - SPE Annual Technical Conference and Exhibition

PB - Society of Petroleum Engineers (SPE)

CY - Richardson, TX, United States

T2 - Proceedings of the SPE Annual Technical Conference & Exhibition

Y2 - 25 September 1994 through 28 September 1994

ER -