transient analysis of point arguello gas pipeline

7/29/2019 Transient Analysis of Point Arguello Gas Pipeline

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THE SPE I MAGE LI BRARY SPE 21731

Tr ansi ent Anal ysi s of Poi nt Ar guel l o Gas Pi pel i neBehavi or

21731

Sar i ca, C. , *I st anbul Techni cal U. ;Shoham, O. , * andBr i l l , J . P. , *U. of Tul sa; andTai t el , Y. ,Tel Avi v U.*SPE Member s

Copyr i ght 1991, Soci et y of Pet r ol eum Engi neer s, I nc.

Thi s paper was pr epar ed f or pr esent at i on at t he Pr oduct i on

Operat i ons Symposi um hel d i n Okl ahoma Ci t y, Okl ahoma, Apr i l 7- 9,1991.

Thi s paper was sel ected f or pr esent at i on by an SPE Progr am Commi t t eef ol l owi ng r evi ew of i nf or mat i on cont ai ned i n an abst r act submi t t ed byt heaut hor ( s) . Cont ent s of t he paper , as pr esent ed, have not been r evi ewedbyt he Soci et y of Pet r ol eum Engi neer s and ar e subj ect t o cor r ect i on byt heaut hor ( s) . The mat er i al , as pr esent ed, does not necessar i l y r ef l ectanyposi t i on of t he Soci et y of Pet r ol eum Engi neer s, i t s of f i cer s, ormember s.Paper s present ed at SPE meet i ngs ar e subj ect t o publ i cat i on r evi ew byEdi t or i al Commi t t ees of t he Soci et y of Pet r ol eum Engi neer s.Per mi ssi on t ocopy i s r est r i ct ed t o an abst r act of not mor e t han 300 wor ds.I l l ust r at i ons may not be copi ed. The abst r act shoul d cont ai nconspi cuousacknowl edgment of where and by whom t he paper i s pr esent ed. Wr i t ePubl i cat i ons Manager , SPE, P. O. Box 833836, Ri char dson, TX 75083- 3836U. S. A. Tel ex, 730989 SPEDAL.

ABSTRACT

The sour gas pr oduced f r om t he of f shor ePoi nt Ar guel l o oi l f i el d wi l l be t r anspor t edt hr ough a pi pel i ne consi st i ng of of f shor e andonshor e sect i ons t er mi nat i ng at an onshor epr ocessi ng pl ant . Accur at e pr edi ct i on of t hecompl ex f l ow behavi or of t he f l ui d i n bot hpi pel i ne secti ons i s essent i al f or pr operoper at i on of t he pi pel i ne. The obj ect i ve of t hi spaper i s t o anal yze and pr ovi de engi neer i ng

sol ut i ons f or t he oper at i onal pr obl ems


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THE SPE I MAGE LI BRARY SPE 21731

occur r i ng dur i ng t he di f f er ent pr oduct i onphases of t he f i el d.

I t was f ound t hat t he Poi nt Ar guel l opi pel i ne woul d exhi bi t di f f er ent f l owbehavi or s, dependi ng upon t he i nput f l owr at es. A si mpl i f i ed, f l ow pat t er n dependent ,t r ansi ent t wo- phase f l ow si mul at or was used t o

pr edi ct t hi s compl ex f l ow behavi or . For l owi nput f l ow r at es t he of f shor e pi pel i ne sect i onwoul d oper at e under sl ug f l ow condi t i ons, wi t hl i qui d accumul at i ng i n t he l i ne, and f r equentpi ggi ng bei ng r equi r ed. For hi gh i nput f l owr at es, t he of f shor e pi pel i ne sect i on woul doper at e under st r at i f i ed f l ow, r esul t i ng i n l essl i qui d accumul at i on and l i qui d bei ngt r anspor t ed i nt o t he onshor e sect i on. Thesedi f f er ent oper at i onal modes pl ay an i mpor t antr ol e i n l eak det ect i on anal ysi s.

The r i gor ous anal ysi s of t he compl exf l ow behavi or pr esent ed i n t hi s paper pr ovi dessol ut i ons f or pr oper oper at i on of of f shor e wetgas pi pel i nes. Thi s i ncl udes sol ut i ons f or l i qui daccumul at i on, Di ggi ng f r equency, andpr essur e f l uct uat i ons f or l eak det ect i on.

I NTRODUCTI ON

The pr oduced gas and l i qui d f r om t hePoi nt Ar guel l o Fi el d ar e pl anned t o beseparated at t he Hermosa pl at f orm. The gas andl i qui d phases wi l l be t r anspor t ed i n t wosepar at e l i nes t o shor e. The gas pi pel i ne i sl ocat ed between t he Hermosa pl at f orm and t heGavi ot a gas pl ant . A schemat i c of t he pi pel i ne i sgi ven i n Fi g. 1. The pi pel i ne consi st s of t wosecti ons; 1. An of f shor e secti on st ar t i ng f r omt he Hermosa pl at f or m and endi ng at t hel andf al l . 2. An onshor e secti on st ar t i ng f r omt he l andf al l and endi ng at t he Gavi ot a gaspl ant .

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transient analysis of point arguello gas pipeline

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