Abstract

Fracture–vug carbonate formations are significant oil and gas reservoirs in China, Middle East, and North America. During development, it is required to connect between hydraulic fracture and as many vugs as possible which are the main geological component to store oil and gas. This paper introduces an advanced experimental methodology to directly observe the connection of hydraulic fractures with vugs. It studies the factors that could affect that connection. The work was based on geological information of the Tarim basin, which is the largest fracture–vug carbonate formation in China. According to the experiment, under higher horizontal stress difference more vugs could be connected. In addition, higher fracture density could improve the connection. This methodology could be used in the future study for the fracture–vug carbonate formation. In addition, the experimental result could be used to design and evaluate hydraulic fracturing works.

References

1.
Wu
,
Y. S.
,
Di
,
Y.
,
Kang
,
Z. J.
, and
Fakcharoenphola
,
P.
,
2011
, “
A Multiple-Continuum Model for Simulating Single-Phase and Multiphase Flow in Naturally Fractured Vuggy Reservoirs
,”
J. Pet. Sci. Eng.
,
78
(
1
), pp.
13
22
. 10.1016/j.petrol.2011.05.004
2.
Zhou
,
J.
,
Jin
,
Y.
, and
Chen
,
M.
,
2010
, “
Experimental Investigation of Hydraulic Fracturing in Random Naturally Fractured Blocks
,”
Int. J. Rock Mech. Min. Sci.
,
47
(
7
), pp.
1193
1199
. 10.1016/j.ijrmms.2010.07.005
3.
Wei
,
D.
,
Gao
,
Z. Q.
,
Fan
,
T. L.
,
Shanshan
,
W.
,
Congcong
,
L.
, and
Hang
,
L.
,
2017
, “
Experimental Hydraulic Fracture Propagation on Naturally Tight Intra-Platform Shoal Carbonate
,”
J. Pet. Sci. Eng.
,
157
, pp.
980
989
. 10.1016/j.petrol.2017.08.016
4.
Patel
,
S. M.
,
Sondergeld
,
C. H.
, and
Rai
,
C. S.
,
2017
, “
Laboratory Studies of Hydraulic Fracturing by Cyclic Injection
,”
Int. J. Rock Mech. Min. Sci.
,
95
, pp.
8
15
. 10.1016/j.ijrmms.2017.03.008
5.
Hou
,
B.
,
Zhang
,
R. X.
,
Tan
,
P.
,
Song
,
Y.
,
Fu
,
W.
,
Chang
,
Z.
,
Kao
,
J.
,
Muhadasi
,
Y.
, and
Chen
,
M.
,
2018
, “
Characteristics of Fracture Propagation in Compact Limestone Formation by Hydraulic Fracturing in Central Sichuan, China
,”
J. Nat. Gas Sci. Eng.
,
57
, pp.
122
134
. 10.1016/j.jngse.2018.06.035
6.
Luo
,
Z. F.
,
Zhang
,
N. L.
,
Zhao
,
L. Q.
,
Yao
,
L.
, and
Liu
,
F.
,
2018
, “
Seepage Stress Coupling Mechanism for Intersections Between Hydraulic Fractures and Natural Fractures
,”
J. Pet. Sci. Eng.
,
171
, pp.
37
47
. 10.1016/j.petrol.2018.07.019
7.
Wan
,
L. M.
,
Chen
,
M.
,
Hou
,
B.
,
Kao
,
J.
,
Kunpeng
,
K.
, and
Weineng
,
F.
,
2018
, “
Experimental Investigation of the Effect of Natural Fracture Size on Hydraulic Fracture Propagation in 3D
,”
J. Struct. Geol.
,
116
, pp.
1
11
. 10.1016/j.jsg.2018.08.006
8.
Zhang
,
R. X.
,
Hou
,
B.
,
Han
,
H. F.
,
Fan
,
M.
, and
Chen
,
M.
,
2019
, “
Experimental Investigation on Fracture Morphology in Laminated Shale Formation by Hydraulic Fracturing
,”
J. Pet. Sci. Eng.
,
177
, pp.
442
451
. 10.1016/j.petrol.2019.02.056
9.
Aidagulov
,
G.
,
Gwaba
,
D.
,
Kayumov
,
R.
,
Sultan
,
A.
,
Aly
,
M.
,
Qiu
,
X.
,
Almajed
,
H.
, and
Abbad
,
M.
,
2019
, “
Effects of Pre-Existing Fractures on Carbonate Matrix Stimulation Studied by Large-Scale Radial Acidizing Experiments
,”
SPE Middle East Oil and Gas Show and Conference
,
Manama, Bahrain
,
March
.
10.
Kou
,
Z.
, and
Wang
,
H.
,
2020
, “
Transient Pressure Analysis of a Multiple Fractured Well in a Stress-Sensitive Coal Seam Gas Reservoir
,”
Energies
,
13
(
15
), p.
3849
. 10.3390/en13153849
11.
Kossack
,
C.
, and
Gurpinar
,
O.
,
2001
, “
A Methodology for Simulation of Vuggy and Fractured Reservoirs
,”
SPE Reservoir Simulation Symposium
,
Houston, TX
,
February
.
12.
Camacho-Velazquez
,
R.
,
Vasquez-Cruz
,
M.
,
Castrejon-Aivar
,
R.
, and
Arana-Ortiz
,
V.
,
2005
, “
Pressure Transient and Decline Curve Behaviors in Naturally Fractured Vuggy Carbonate Reservoirs
,”
SPE Res Eval & Eng
,
8
(
2
), pp.
95
112
. doi.org/10.2118/77689-PA
13.
Iwere
,
F. O.
,
Moreno
,
J. E.
,
Apaydin
,
O. G.
,
Leon Ventura
,
R.
, and
Garcia
,
J. L.
,
2002
, “
Vug Characterization and Pore Volume Compressibility for Numerical Simulation of Vuggy and Fractured Carbonate Reservoirs
,”
SPE International Petroleum Conference and Exhibition
,
Villahermosa, Mexico
,
February
.
14.
Popov
,
P.
,
Efendiev
,
Y.
, and
Qin
,
G.
,
2009
, “
Multiscale Modeling and Simulations of Flows in Naturally Fractured Karst Reservoirs
,”
Commun. Comput. Phys.
,
6
(
1
), pp.
162
184
. 10.4208/cicp.2009.v6.p162
15.
Khvatova
,
I. E.
,
Renaud
,
A.
,
Malyutina
,
G.-B.
,
Sansiev
,
G.
, and
Kuzilov
,
I.
,
2012
, “
Simulation of Complex Carbonate Field: Double Media vs. Single Media Kharyaga Field Case (Russian)
,”
SPE Russian Oil and Gas Exploration and Production Technical Conference and Exhibition
,
Moscow, Russia
,
October
.
16.
Fadlelmula
,
F. M.
,
Fraim
,
M.
,
He
,
J.
, and
Killough
,
J. E.
,
2015
, “
Discrete Fracture-Vug Network Modeling in Naturally Fractured Vuggy Reservoirs Using Multiple-Point Geostatistics: A Micro-Scale Case
,”
SPE Technical Conference & Exhibition
,
Houston, TX
,
September
.
17.
Sun
,
Q.
,
Zhang
,
N.
,
Fadlelmula
,
M.
, and
Wang
,
Y.
,
2018
, “
Structural Regeneration of Fracture-Vug Network in Naturally Fractured Vuggy Reservoirs
,”
J. Pet. Sci. Eng.
,
165
, pp.
28
41
. 10.1016/j.petrol.2017.11.030
18.
Zhang
,
F.
,
An
,
M.
,
Yan
,
B.
,
Wang
,
W.
, and
Han
,
Y.
,
2019
, “
A Novel Hydro-Mechanical Coupled Analysis for the Fractured Vuggy Carbonate Reservoirs
,”
Comput. Geotech.
,
106
, pp.
68
82
. 10.1016/j.compgeo.2018.10.013
19.
Kou
,
Z.
, and
Dejam
,
M.
,
2020
, “
Control of Shear Dispersion by the Permeable Porous Wall of a Capillary Tube
,”
Chem. Eng. Technol.
,
43
(
11
), pp.
2208
2214
. 10.1002/ceat.201900687
You do not currently have access to this content.