Sand controlGVHD: TS.T Quc Dng

Nhm:

Phan Ngc Tin

Bi Quc Vit

Chung Nghip Hun

Tm tt

Tng quan v hin tng ct xm nhp

Tc hi ct xm nhp n qu trnh khai thc

Cc cng ngh x l ct

Gii thiu cng ngh expandable screen

Kt lun v kin ngh

Nguyn nhn sinh ct

Tng cha khng c kt hoc c kt yu

Phng php hon thin ging khng phhp

S thay i ng sut ca khu vc quoanh ging khai thc

S phn r vt liu xi mng c cha thnh phn ct

Lc ko ca dng chy vt qu bn ko ca t tng cha

Dng chy lu cht

K

Nguyn nhn sinh ct

V

Va khng c kt

Ging bm pGing khai thc

N

Hnh : M hnh ha hin tng sinh ct

Ch thch :

: cc ng sut tc dng phv thnh h

D on hin tng sinh ct

n nay,vic d on hin tng sinh ct l

mt vn mang tnh tng i,khng th

m bo v mt khoa hc v ang c

nghin cu nhiu hn.

Vic xc nh ng sut thnh h ( xc nh

bn nn ca va) l du hiu tt nht

d on hin tng sinh ct

nh hng hin tng sinh ct n qu trnh khai thc

S bp mo thnh ng khai thc

ng sut lp bn trn

Ct ng khai thc

cementing

Hnh : ct xm nhp gy sp va vbp mo ng khai thc

Ct gy sp v va v bp mo ng khai thc-ng chng

nh hng ct n khai thc

Ct lp y khong bn m va- cc thit blng ging

Hnh : ct lp y khong bn m va

Ct lp y perforation

Ct xm nhp bnh tch

Tch t ct trong ging v cc thit b b mt

Tc hi n mn do ct xm nhp

Tc hi n mn do ct xm nhp

Hnh : ct xm nhp gy h hi thit b b mt

Cng ngh sand control

Oriented perforation

Stand aloneGravel packing

Fractured gravel

Phng php ln si

Nguyn tc: Ln si trong khong

khng vnh xuyn v ng lc khng ch ct

Kch thc ln si phthuc vo kch thc ht ct v s ng nht ca chng

m bo dng chy i qua

Si ln

Li lc

Packer

Tubing khai thc

ng chng khai thc

Phng php ln si

Hnh : ln si ngoi

C 2 phng php ln si c bn:

Ln si ngoi :

p dng cho kiu hon thin thn trn

M va ton b i khai thc

Ln si trong :

p dng cho kiu hon thin chng ng,bn mva

L m va c lp y bi si

Phng php ln si

Hnh : Ln si ngoi

Undreamed open hole:

l qu trnh thc hin trc khi ln si

Tng ng knh ln si

Loi b lp v bn st

Tuy nhin undreaming process cng em li nhiu tr ngi :

Va nhim bn

Nguy hi i vi va c kt yu

Phng php ln si

Hnh: ln si bn trong

s

c

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e

n

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d

f

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m

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wellbore

Qu trnh ln si

Hnh : perforation v ln si Hnh : qu trnh ra si Hnh: qu trnh khai thc

ng dn nc ra si

Dng khai thc

ng ln si

Phng php ln si

u im: Hiu qu vi va ln

n gin,chi ph thp

Nhc im: Hn ch dng chy v thm vng xung quoanh

Hn ch cc phng php o log

Kh thc hin khi c s ngn cch tng sn phm

Kh kim sot si sau mt thi gian khai thc

Cng ngh Expandable Sand Screen (ESS)

L cng ngh kim sot ct hin i vi s kt hp ca 2 cng ngh:

ng gin n(expandable tubular)

H thng tm lc (filtration layers)

Cng ngh ESS

Hnh: ng gin n ca Weatherford

Drainage section: gm 2 lp chnh:

Lower drainage layer

Upper drainage layer

Filtration section :tng trn

Vt liu ch to: hp kim khng g

Cu to ESS

1. Expandable line hanger

2. Expandable Solid pipe

3. Expandable Isolation Packer

4. Expandable pipe

1

2

3

4

Thit b EES

Hnh : Kim tra s trng n ca ca ng

Expansion cone (cn p)

Mc ch:

p v m rng cc lp ng c rnh gin n

Vn hnh:

nn p sut cao bng thy lc hoc pittng

Cu to:

C cc rnh trt v m vo thit b bn ngoi ca ng trng n khi vn hnh

Vn hnh ESS

Bc1 : Chy ng lc n v trthnh h

Bc2: Truyn ng p lc pittng y cone p cht li lc bm st thnh ging

Hnh 3: Li lc sau khi bm st vo thnh ging

Nguyn l vn hnh ESS

Mt s nh cung cp ESS

Poroflex Expandable Screen

Poroflex Expandable Screen

t vn : Ct xm nhp khng th kim sot c trong trng hp

ging thn trn

Tng shale nm bn trn to chnh p sut gy bp mo thnh ging

gii php t ra: Thit b c th cch ly vi khu vc bn m va to ra

chnh p sut tng i

C th kim sot ct tt

Poroflex Expadable Screen

Nu P1 =P3 th ta c chnh p gia thnh hshale v wellbore l : P gia P2 v P3 ,nu P ln s gy bp mo ng chng v ng khai thc.Do vy gii php t ra l lp t h thng Poroflex vi ABT (Annular Barrier Tool) cn tr p lc t tng shale

Ch thch:

p lc tng shale ln thnh ging

p lc do ABT tc ng ngc tr li tng shale

Poroflex Expandable Screen

Expansion cone(cn)

Relief valve(van thot)

P

Sealant (cht lm kn)

Cht lm kn:c bm ra t thit b Anular Barrier Tool (ABT)

ABT l cng c dng kt hp vi Poroflex c chc nng:

Chu c p lc lm bp mo thnh ging

Poroflex Expandable Screen

u im: Gia c thnh ging Tng ng knh trong ca ng khai thc Ngn cch tt vi tng shale bn trn Khng cn ln si

Nhc im: Gi thnh cao Thc tin p dng ca cng ngh ny cha rng

ri

Kt lun

ti gii thiu 2 cng ngh :gravel packing vexpandable screen

Sand Control l mt vn kh mi m VN Do tr lng cc va ln sp cn kit nn VN v

s tin hnh k thut commingle production i vi nhiu sand c tr lng nh

V th vic pht sinh hin tng ct xm nhp lkhng th trnh khi trong qu trnh khai thc.Hin ti cc m VN ch dng li p dng i vi cc conventional sand control

Hng pht trin mi ca ti: tm hiu cc m VN v vic p dng cc cng ngh sand control sao cho ph hp v c hiu qu tt.

Tham kho ti liu

Modern Sandface completion practices handbook-William K.Ott and Joe D.Woods (World Oil)

Introduction to expandable completion- Phil Smith and Jennifer Reese, EPTG Completions & Sand Control-BP company

Lun vn tt nghip-Hong Th Ti,Phm Hu Li

Cc trang web cng ty Halliburton,Schlumberger,Wethearford,Baker Huge

Thank you