oisd std 118 - baixardoc

Page No.Page No. II

OISD-STD-118OISD-STD-118Second Revision – Sep 2004Second Revision – Sep 2004

Addendum –1 – Jan 2006Addendum –1 – Jan 2006Addendum – II – July 2008Addendum – II – July 2008

FOR RESTRICTEDFOR RESTRICTEDCIRCULATIONCIRCULATION

LAYOUTSLAYOUTS

FORFOR

OIL AND GAS INSTALLATIONSOIL AND GAS INSTALLATIONS

OISD – STANDARD – 118OISD – STANDARD – 118Revision – II, September 2004Revision – II, September 2004Addendum-I, January 2006Addendum-I, January 2006

Addendum-II, July 2008Addendum-II, July 2008

Oil Industry Safety DirectorateOil Industry Safety Directorate

Government of IndiaGovernment of India

Ministry of Petroleum & Natural GasMinistry of Petroleum & Natural Gas

88thth

Floor, OIDB Bhavan, Plot No. 2, Sector – 73, Noida – 201301 (U.P.) Floor, OIDB Bhavan, Plot No. 2, Sector – 73, Noida – 201301 (U.P.)

Website: www.oisd.gov.inWebsite: www.oisd.gov.in

Tele: 0120-2593800, Fax: 0120-2593802Tele: 0120-2593800, Fax: 0120-2593802

Sr.Number:OISD/DOC/2012/076Sr.Number:OISD/DOC/2012/076

Page No.Page No. IIII

OISD-STD-118OISD-STD-118

Second Revision – Sep 2004Second Revision – Sep 2004

Addendum –1 – Jan 2006Addendum –1 – Jan 2006

Addendum – II – July 2008Addendum – II – July 2008

FOR RESTRICTEDFOR RESTRICTED

CIRCULATIONCIRCULATION

LAYOUTSLAYOUTS

FORFOR

OIL AND GAS INSTALLATIONSOIL AND GAS INSTALLATIONS

Prepared byPrepared by

Committee onCommittee on

Layouts for Oil and Gas InstallationsLayouts for Oil and Gas Installations

OIL INDUSTRY SAFETY DIRECTORATEOIL INDUSTRY SAFETY DIRECTORATE

88thth

Floor, OIDB Bhavan, Plot No. 2, Sector – 73, Noida – 201301 (U.P.) Floor, OIDB Bhavan, Plot No. 2, Sector – 73, Noida – 201301 (U.P.)


Page No.Page No. IIIIII

PreamblePreamble

Indian petroleum industry is the energy lifeline of the nation and its continuous performance isIndian petroleum industry is the energy lifeline of the nation and its continuous performance is

essential for sovereignty and prosperity of the country. As the industry essentially deals withessential for sovereignty and prosperity of the country. As the industry essentially deals with

inherently inflammable substances throughout its value chain – upstream, midstream and downstreaminherently inflammable substances throughout its value chain – upstream, midstream and downstream – Safet – Safety is of y is of paramount iparamount importance to this mportance to this industry as industry as only safe ponly safe performance at erformance at all all times can times can ensureensure

optimum ROI of these national assoptimum ROI of these national assets and resources including sustainability.ets and resources including sustainability.

While statutory organizations were in place all along to oversee safety aspects of Indian petroleumWhile statutory organizations were in place all along to oversee safety aspects of Indian petroleum

industry, Oil Industry Safety Directorate (OISD) was set up in 1986 Ministry of Petroleum andindustry, Oil Industry Safety Directorate (OISD) was set up in 1986 Ministry of Petroleum and

Natural Gas, Government of India as a knowl Natural Gas, Government of India as a knowledge centre for formulation of constantly updated worledge centre for formulation of constantly updated world-d-scale standards for design, layout and operation of various equipment, facility and activities involvedscale standards for design, layout and operation of various equipment, facility and activities involved

in this industry. Moreover, OISD was also given responsibility of monitoring implementation status ofin this industry. Moreover, OISD was also given responsibility of monitoring implementation status ofthese standards through safety audits.these standards through safety audits.

In more than 25 years of its existence, OISD has developed a rigorous, multi-layer, iterative andIn more than 25 years of its existence, OISD has developed a rigorous, multi-layer, iterative and

participative participative process process of of development development of of standards standards – – starting starting with with research research by by in-house in-house experts experts andand

iterating through seeking & validating inputs from all stake-holders – operators, designers, nationaliterating through seeking & validating inputs from all stake-holders – operators, designers, nationallevel knowledge authorities and public at large – with a feedback loop of constant updation based onlevel knowledge authorities and public at large – with a feedback loop of constant updation based onground level experience obtained through audits, incident analysis and environment scanning.ground level experience obtained through audits, incident analysis and environment scanning.

The participative process followed in standard formulation has resulted in excellent level ofThe participative process followed in standard formulation has resulted in excellent level ofcompliance by the industry culminating in a safer environment in the industry. OISD – except in thecompliance by the industry culminating in a safer environment in the industry. OISD – except in the

Upstream Petroleum Sector – is still a regulatory (and not a statutory) body but that has not affectedUpstream Petroleum Sector – is still a regulatory (and not a statutory) body but that has not affected

implementation of the OISD standards. It also goes to prove the old adage that self-regulation is theimplementation of the OISD standards. It also goes to prove the old adage that self-regulation is the best best regulation. regulation. The The quality quality and and relevance relevance of of OISD OISD standards standards had had been been further further endorsed endorsed by by theirtheiradoption in various statutory rules of the land.adoption in various statutory rules of the land.

Petroleum industry in India is significantly globalized at present in terms of technology contentPetroleum industry in India is significantly globalized at present in terms of technology content

requiring its operation to keep pace with the relevant world scale standards & practices. This matchesrequiring its operation to keep pace with the relevant world scale standards & practices. This matches

the OISD philosophy of continuous improvement keeping pace with the global developments in itsthe OISD philosophy of continuous improvement keeping pace with the global developments in itstarget environment. To this end, OISD keeps track of changes through participation as member intarget environment. To this end, OISD keeps track of changes through participation as member inlarge number of International and national level Knowledge Organizations – both in the field oflarge number of International and national level Knowledge Organizations – both in the field of

standard development and implementation & monitoring in addition to updation of internalstandard development and implementation & monitoring in addition to updation of internal

knowledge base through continuous research and application surveillance, thereby ensuring that thisknowledge base through continuous research and application surveillance, thereby ensuring that thisOISD Standard, along with all other extant ones, remains relevant, updated and effective on a realOISD Standard, along with all other extant ones, remains relevant, updated and effective on a real

time basis in the applicable areas.time basis in the applicable areas.

Together we strive to achieve NIL incidents in the entire Hydrocarbon Value Chain. This, besidesTogether we strive to achieve NIL incidents in the entire Hydrocarbon Value Chain. This, besides

other issues, calls for total engagement from all levels of the stake holder organizations, which we, atother issues, calls for total engagement from all levels of the stake holder organizations, which we, at

OISD, fervently look forward to.OISD, fervently look forward to.

Jai Hind!!!Jai Hind!!!

Executive DirectorExecutive Director

Oil Industry Safety DirectorateOil Industry Safety Directorate


Page No. IV

FOREWORD

Oil Industry in India is over 100 years old. As such variety of practices have been in vogue

because of collaboration / association with different foreign companies and governments.

Standardization in design philosophies and operating & maintenance practices at national

level was hardly in existence. This, coupled with feed back from some serious accidents that

occurred in the recent past in India and abroad, emphasised the need for the industry to

review the existing state-of-the-art in designing, operating and maintaining oil and gas

installations.

With this in view, Oil Industry Safety Directorate (OISD) was established in 1986 staffed

from within the industry in formulating and implementing a series of self regulatory measures

aimed at removing obsolescence, standardising and upgrading the existing standards to

ensure safer operations. Accordingly, OISD constituted number of functional committees

comprising experts nominated from the industry to draw up standards and guidelines on

various subjects.

The original document on "Layouts for Oil and Gas Installations" was published in

November 1988 and its first revision released in July 1995. In August 2000 it was amended

inline with the recommendations of the High Power Committee. The document on “Layouts

for Oil and Gas Installation” was revised in September 2004 for the second time and in

January 2006, separation distances of electrical substation were added in Table-I as

addendum.

Attempts have been made to incorporate the latest technological changes, experience gained

after the implementation of standards and relevant updation in the various national and

international codes and practices.

It is hoped that the provision of this document, if implemented objectively, will go a long

way in improving the safety in oil and gas industry.

This document will be reviewed periodically for improvements based on the experience and

better understanding. Suggestions from industry members may be addressed to:

The Coordinator

Committee on Layouts for Oil and Gas Installation

Oil Industry Safety Directorate8th Floor, OIDB Bhavan,

Plot No. 2, Sector - 73

Noida – 201301 (U.P.)

Sr.Number:OISD/DOC/2012/076

Page No. V

NOTE

OISD Publications are prepared for the use in the Oil andGas Industry under the Ministry of Petroleum & NaturalGas. These are the property of Ministry of Petroleum & Natural Gas and shall not be reproduced or copied orloaned or exhibited to others without written consentfrom OISD.

Though every effort has been made to assure theaccuracy and reliability of the data contained in thesedocuments, OISD hereby expressly disclaims anyliability or responsibility for loss or damage resultingfrom their use.

These documents are intended to supplement rather thanreplace the prevailing statutory requirements.


Page No. VI

COMMITTEES ON

LAYOUTS FOR OIL AND GAS INSTALLATIONS

First Edition – November 1988

Leader

Shri R P Bhatia Engineers India Limited, New Delhi

Members

Shri K K Arora Oil and Natural Gas Corporation Ltd., Bombay.

Shri S K Mukherjee Hindustan Petroleum Corporation Ltd.,(R) Bombay

Shri V K Raina Bharat Petroleum Corporation Ltd., (M), Bombay.

Shri K Ravi Kumar Madras Refineries Limited, Madras.

Member Coordinator

Shri B K Trehan Oil Industry Safety Directorate.

First Revision – July 1995

Leader

Shri R P Bhatia / Engineers India Limited, New Delhi

Shri M M Kapur

(Feb 95 – July 95)

Members

Shri S K Mukherjee Hindustan Petroleum Corporation Ltd.,(R) Bombay

Shri K K Arora Oil and Natural Gas Corporation Ltd., Bombay.

Shri V K Raina Bharat Petroleum Corporation Ltd., (M), Bombay.

Shri S Pandarinathan Madras Refineries Limited, Madras.

Member Coordinator

Shri B Sadhukhan / Oil Industry Safety Directorate.

Shri S N Mathur (April 95 – July95)

Amended Edition – August 2000

Amendments were carried out to this standard based on the recommendation of High Power

Committee set up in 1997 by the Ministry of Petroleum and Natural gas to review the

standard with respect to land requirement inline with national and international standards.


Page No. VII

COMMITTEES ON


Second Revision – Month /Year

LEADER

Shri Vinay Kumar GAIL (India) Limited, New Delhi

MEMBERS

Shri Arvind Kumar, Engineers India Limited, New Delhi

Shri K.T.Lokhande, Department of Explosives, Nagpur

Shri H.S.P. Rao, BPCL, Mumbai Refinery, Mumbai

Shri Thomas Chacko, Kochi Refineries Limited, Kochi

Shri S.G.Palnitkar, HPCL Visakh Refinery, Visakhapatnam.

Shri D.K.Banerjee IOCL Pipelines Division, NOIDA

Shri M.D.Shah IOCL, Panipat Refinery, Panipat

Shri S.S.Maji, IOCL Refineries HQ, New Delhi

Shri Sunil Dewan, BPCL, NOIDA

Shri A.Buragohain, Oil India Limited, Duliajan

MEMBER-CO-ORDINATOR

S K Aggarwal Oil Industry Safety Directorate, New Delhi

Addendum in January 2006:

Separation distance of electrical substation was added in table 1 in January 2006 based on

decision in 40th steering Committee Meeting in Dec’05.

In addition to the above, several other experts from the industry contributed in the

preparation, review and finalization of this document.


OISD – STD – 118 Page No. 19


“OISD hereby expressly disclaims any liability or responsibility for loss or damage resultingfrom the use of OISD Standards/Guidelines.”

SEPARATION DISTANCES BETWEEN STORAGE TANKS WITHIN A DYKE TABLE– 4

Item Between floating Roof TanksClass A & B

Between fixed Roof Tanks Class A& B

Between Class C Petroleum Storagetanks

1 All tanks with Diameter upto 50 meters (D+d) / 4Min 10 m

(D+d) / 4Min 10 m

(D+d) / 6Min 6 m

2 Tanks with Diameter exceeding 50 meters. (D+d) / 4 (D+d) / 3 (D+d) / 4

General notes to Table – 3 & 4a) All distances are in meters.

b) “x” indicates suitable distance as per good engineering practices to meet construction, operational and maintenance requirements

c) D & d stands for diameter of larger and smaller tanks.

d) In Table – 3 all distances shall be measured between the nearest points on the perimeter of each facility except in the case of tank vehicle loading/unloading area where thedistance shall be measured from the center of each bay.

e) In Table –4, Distances given are shell to shell in the same dyke.

f) For different combination of storage tanks, the stringent of the applicable formulae shall be considered for minimum separation distance.

g) The distance of storage tanks from boundary wall is applicable for;

(i) Floating roof tanks having protection for exposure

(ii) Tanks with weak roof-to-shell joint having approved foam or inerting system and the tank diameter not exceeding 50 meters

h) Distances mentioned in Table -3 are for electric pump motor located outside dyke. However for side entry mixer attached to tank shell, the motor can be mounted on the

tank shell.

i) For the facilities not covered in Table- 3, refer Table-1.





SEPARATION DISTANCES BETWEEN TANKS/OFFSITE FACILITIES - (For small installations) TABLE – 5

1 2 3 4 5 6 7 8 9 10 11 12 13

1 Storage Tank Class A 0.5D 0.5D0.5D /

6.09 9 9 15 15 15 3 15 15 15

2 Storage Tank Class B 0.5D0.5D 0.5D /

6.09 0.5D 0.5D 9 4.5 4.5 3 4.5

DMin 4.5

DMin 4.5

3 Storage Tank Class C0.5D /

6.00.5D /

6.0x 9 0.5D x 9 4.5 x x x

0.5DMin 3.0

0.5DMin 3.0

4Storage / Filling shed for

petroleum Class -A9 9 9 x 4.5 6 9 9 9 3 9 9 9

5Storage / Filling shed for

packed (non bulk) petroleum Class -B

9 0.5D 0.5D 4.5 x 1.5 9 4.5 4.5 1.5 4.5 4.5 4.5

6Storage / Filling shed forPacked (non bulk)

petroleum Class -C9 0.5D x 6 1.5 x 9 4.5 x x x 3 3

7Tank vehicle Loading /unloading Class - A

15 9 9 9 9 9 x 9 9 3 9 9 9

8Tank vehicle Loading /

unloading Class - B15 4.5 4.5 9 4.5 4.5 9 x 4.5 1.5 4.5 4.5 4.5

9Tank vehicle Loading /unloading Class - C

15 4.5 x 9 4.5 x 9 4.5 x x x 3 3

10Flame proof Electric

pump motors3 3 x 3 1.5 x 3 1.5 x x 3 x x

11 Non Flame proof Electric pump motors

15 4.5 x 9 4.5 x 9 4.5 x 3 x x x

12Office building, stores,amenities

15D

Min 4.50.5 D

Min 3.09 4.5 3 9 4.5 3 x x x x

13 Boundary wall 15D

Min 4.50.5D

Min 3.09 4.5 3 9 4.5 3 x x x x





General notes to Table –5:

a) All distances are in meter and the table specifies the minimum requirement.

b) “x” indicates suitable distance as per good engineering practices to meet construction, operational and maintenance requirements

c) “D” indicates the diameter of the larger tank.

d) Distances given for the tanks are shell to shell in the same dyke.

e) Where alternate distances are specified (like 0.5 D / 6 .0), the minimum thereof shall be used.

f) All distances shall be measured between the nearest points on the perimeter of each facility except in case of tank vehicle loading

/unloading area where the distance shall be from the center of each bay.

g) Pig launcher/receiver at liquid hydrocarbon handling pipeline installations shou ld be located at least 5 m from boundary.

h) Distances mentioned in Table -3 are for electric pump motor located outside dyke. However for side entry mixer attached to tank shell,the motor can be mounted on the tank shell.


oisd std 118 - baixardoc

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