水平井与非均质盒式油藏耦合模型(2015年)_油藏-井筒耦合代码资源-CSDN文库

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开

D2

卷第

1

期

2015

年

5

月

深圳大学学报理

l

版

.J

OURNAL

OF

SHENZHEN

UNIVERSITY

SCIENCE

AND

ENGINEERING

[环境与能源/

Environment

and

Energy]

水平井与非均质盒式油藏藕合模型

廉培庆，陈志海，董广为，马翠玉

中国石油化

t

股份有限公司石油勘探开发研究院，北京

100083

飞 '0

1.:-1

2

,\(J,

3

Mav

2015

摘

要:运用

Green

函数和

Newman

积原理，建立盒式油藏水平井产量计算模型.模型考虑井筒内的

沿程摩擦阻力和加速度压力损失，引入拟表皮系数表征储层非均质性造成的物性差异.实例计算结果表明，

该模型与有限差分数值模拟模型计算结果吻合较好，证实了该方法的可靠性;储层非均质性和沿程压降对

水平井产量剖面影响较大，渗透率高的区域，流入量较大;在早期，原油的流动为非稳态时，井筒压降对

计算结果影响很大，当水平井较长时，井筒压降对产量影响不可忽略;由于井筒流量从趾端到跟端逐渐增

加，井筒压降逐渐增大.

关键词:油田开发;非均质储层;水平井;拟表皮系数;井筒摩擦阻力;流量分布;有限差分数值模

拟模型

中图分类号

TE

312

文献标志码

A

doi:

10.3724/SP.J.

1249.2015.03266

A coupling model for horizontal well

in heterogeneous

box

回

shaped

reservoir

Lian

Peiqing f ,

Chen

Zhihai , Dong Guangwei ,

and

Ma

Cuiyu

Institute

of

Petroleum Exploration and Production ,

SINOPEC

, Beijing 100083 ,

P.

R, China

Abstract:

Based

on

Green's

function

and

the

Newman

product

princip1e , we

present

a

model

to ca1cu1ate horizonta1

well

deliverabi1ity

in

a

box-shaped

reservoi

r.

In

this

mode1 , we

take

into

account

the

friction a10ng

the

wellbore

and

acceleration

pressure

10ss ,

and

introduce

a

pseudo-skin

factor

to

represent

the

reservoir

property

differences

due

to

reservoir

heterogeneity.

The

result

accords

with

that

of

the

finite

difference

numerica1 simu1ation mode1 ,

which

further

confirms

the

re1iabi1ity

of

our

method.

Simulation

results

show

that

reservoir

heterogeneity

and

pressure

drops

along

the

horizontal

wellbore

have

significant

impact

on

the

flow

rate

distribution.

The

higher

the

permeability

is

,

the

greater

the

inflow.

At

the

early

transient

state

,

the

oil flow

is

unstable

,

and

the

wellbore

pressure

drop

has

a

great

effect

on

the

flow

rate.

When

the

horizontal

well

is

long

,

the

influence

of

wellbore

pressure

drop

011

production

is

non-negligible.

Because

of

the

increment

of

flow

rate

from

the

toe to

the

heel

of

the

wellbore

,

the

wellbore

pressure

drop

gradually

increases.

Key

words:

oilfield

development;

heterogeneous

reservoir;

horizontal

well;

pseudo-skin

factor;

wellbore

friction;

flow

rate

distributio

l1;

finite

difference

numerical

simulation

model

Received: 2015-01-01; Accepted: 2015-04-03

Foundation:

National

Science

and

Technology

Major

Project

of

China

(2011ZX05031-003)

'f

Corresponding auth

Ol':

Senior

Engineer

Lian

Peiqing.

E-mail:

lianpq@

163

,

cO

Ill

Citation:

Lian

Peiqing

,

Chen

Zhih

田，

Dong

Guangwei

,

et

aL

A

coupling

Ill

odel

for

horizontaJ

weJJ

in

helerogeneolls

box-shaped

reser

飞

oir

[J J,

JournaJ

of

Shenzhen

Uniycrsily

Scic

盯

e

ancl

E

咔

lneen

吨，

20

IS

,

32

(3)

:

266-2

71,

(>

n

Chine

附)

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