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Shale Gas Exploration —— Three Years, Three Great Changes
Marine Facies in
South China
Tarim
Marine Facies
(Large burial
depth)
South China Marine-
Continental Facies
East Fault Depression
Continental Facies
(Low thermal Evolution, poor
fracturing ability)
complex structure, poor
preservation condition,
high thermal evolution
Sichuan Basin
Sichuan Basin
Southeast of Sichuan
Limited by technology
and cost, commercial
development is difficult
to realize
Breakthrough of marine
shale gas exploration in
Jiaoshiba, Fuling
Feb. 2012, Well Jiaoye 1-HF was drilled according to the plan of Silurian Longmaxi Formation in
Jiaoshiba, Fuling. Horizontal length is 1007.9m, with 15 stages through large-scale hydraulic
fracturing.
Nov. 28, 2012, shale gas production was 20.3×104 m3/D, realizing a great breakthrough of shale
gas exploration in Sinopec. Jan. 9, 2013, commercial trial-produce started with a daily production
of 6×104 m3, which marked Fuling shale gas reservoir entering its official commercial trial
production.
2010-2011 2011-2012 2009-2010
Jan, 2013, made strategic plans on evaluation
of production test wells, achieving annual
shale gas production of 0.5 billion m3;
Mar. 2014, Sinopec announced Fuling shale
gas play entered commercial production phase
ahead of time, becoming the first to get a great
breakthrough in shale gas exploration;
From 2014 to 2015, affirmed by Ministry of
Land and Resources twice through evaluation
that Fuling shale gas had 380.6 billion m3
cumulative proved reserves, 383.54 km2 gas
bearing area;
2015, construction of Fuling National Shale
Gas Demonstration Reservoir passed
inspections, which marked Fuling shale gas
play was accepted as a national shale gas
demonstration area.
Shale Gas Development ——Constructed Fuling Shale Gas
Demonstration Reservoir in Chongqing for Three Years
Shale gas formation in Jiaoshiba Fuling area showed electrical properties including
high Gama, high sonic wave and low porosity. The formation was typical superior
deep sea shelf facies mud shale. Carbon isotope comparison indicated the shale gas
was sourced from Wulong-Longmaxi formation, self-generated and self-stored with a
large reservoir thickness, high gas content and stable distribution.
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钻井液密度1 2g/cm
3
气测全烃0 10%
AC120 40μs/ft
CNL60 -20%
DEN2.1 3.1g/cm
3
RD1 1000Ω·M
RS1 1000Ω·M
取心
位置
岩性深度(m)
GR0 250API
KTH0 250API
分层
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钻井液密度1 2g/cm
3
气测全烃0 10%
AC120 40μs/ft
CNL60 -20%
DEN2.1 3.1g/cm
3
RD1 1000Ω·M
RS1 1000Ω·M
取心
位置
岩性深度(m)
GR0 250API
KTH0 250API
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钻井液密度1 2g/cm
3
气测全烃0 10%
AC120 40μs/ft
CNL60 -20%
DEN2.1 3.1g/cm
3
RD1 1000Ω·M
RS1 1000Ω·M
取心
位置
岩性深度(m)
GR0 250API
KTH0 250API
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钻井液密度1 2g/cm
3
气测全烃0 10%
AC120 40μs/ft
CNL60 -20%
DEN2.1 3.1g/cm
3
RD1 1000Ω·M
RS1 1000Ω·M
取心
位置
岩性深度(m)
GR0 250API
KTH0 250API
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钻井液密度1 2g/cm
3
气测全烃0 10%
AC120 40μs/ft
CNL60 -20%
DEN2.1 3.1g/cm
3
LLD1 1000Ω·M
LLS1 1000Ω·M
取心位置
岩性剖面
深度(m)
GR0 250API
KTH0 250API
分层
Fuling Shale Gas Field——A Typical Superior Marine
Shale Gas Reservoir
Gas production showed Fuling marine shale gas was superior with “Two High, Two
Good” characteristics (high formation pressure, good natural gas components, good
single well trial production effect and high production). Shale gas components were
mainly CH4 with an average content of 98.27%, the total content of hydrocarbon was
99%, with no poisonous gas such as H2S and CO,etc., thus the shale gas was a
high-quality clean energy.
——High Gas Production Per Well and
Good Gas Components
Cumulative Gas Production
Jiaoye 6-2HF: 0.2 billion m3
Jiaoye 1HF: 76 million m3
Histogram of average content of shale gas
components in Longmaxi Formation, Jiaoshiba area
CH
4
C2 H
6
C3 H
8
C4 H
10
Iso
-C4 H
10
C5 H
12
Iso
-C5 H
12
CO
2
He
N2
H2 S
H2
Co
mp
on
en
t
10 samples of Well Jiaoye 1HF and 1-3HF
Production Date(month)
Mo
nth
ly G
as p
rod
uctio
n(M
illio
n m
3)
Haynesville(11.9nm nozzle)
Haynesville(5.6 nozzle)
Jiaoye 6-2HF(large pressure drop)
Jiaoye 1HF( constant production rate)
From Nov. 8, 2015, there were 165 producing wells in Fuling Shale Gas Play, daily gas
production was more than 15 million m3. On Dec. 29, 2015, Sinopec announced the first
national shale gas demonstration area —— the first productivity construction stage of
Sinopec Chongqing Fuling national shale gas demonstration area was completed.
Jiaoye Platform 1
Qingshan Drill Rig Last gas transportation station at Baitao
Large Scale Hydraulic Fracturing
—Achieved 5 Billion m3 Annual Shale Gas Production in Advance
June 2014, China’s Ministry of Land
and Resources established
Chongqing Fuling shale gas
exploration and development
demonstration base.
Sep. 2013, the National Energy
Administration approved the
establishment of Chongqing Fuling
National Shale Gas Demonstration Area
April 2014, the People’s Government
of Chongqing province awarded well
Jiaoye 1HF as the Exploit Well of
Shale Gas Development.
Nov. 2014, the 5th World Shale Oil and
Gas Summit granted “International
Shale Oil and Gas Pioneer” award to
Sinopec.
Chongqing Fuling National Shale Gas Demonstration Area——
The high-level, high-speed and high-quality construction is a successful example of
China’s shale gas exploration and development in areas including theory, technology and
management innovation. It’s a role model for China’s shale gas exploration and production,
which significantly increases confidence in the development of shale gas industry, and also
shows a beautiful prospect in this area. At the same time, a series of world well-known
accomplishments has been achieved during its production construction.
——From National Energy Administration experts responsible for the Demonstration Area inspections
1. Created the Marine Shale Gas Exploration Theory
and Series of Development Technologies
Created shale gas enrichment theory, built a marine shale gas evaluation
system and standard —— “shale quality is the basis, preserve condition is
critical, and economic efficiency is the purpose”.
——Through systematic comparative study of
outcrops and core data, we found deep-water
shelf shale was the most favorable facies to shale
gas production, preservation and fracturing. It
was the basis of hydrocarbon generation and
preservation control.
——By analyzing reasons for the early drilling
failure in superior shale, preservation conditions
are considered to determine the shale gas
enrichment and distribution. Good preservation
conditions are the key to reservoir forming and
production control.
Thickness contour map
of high-quality shale in
Sichuan Basin and its
peripheral Wufeng-
Longmaxi Formations
Thickness contour map
of high-quality shale in
Sichuan Basin and its
peripheral lower
Cambrian Niutitang
Formation bottom
Com
pre
hen
sive
asse
ssm
ent
tech
nolo
gy o
f sh
ale
gas
res
ervoir
Anisotropy description technology
for porous structure of shale
Well-logging evaluation technology
for shale-layer
Comprehensive geological assessment
technology for desert area development
Technology for optimizing &
designing shale gas development
Production assessment of well
technology
Shale gas prediction technology through
geological physics
……
Fas
t &
hig
h q
ual
ity h
ori
zon
tal
wel
l
dri
llin
g t
ech
nolo
gy
Superficial karst cave and fracture
prediction technology
Drilling design optimization
technology
Speeding-up technique based on “Vertical section
+ Directional section + horizontal section”
Localization technology for oil-
based drilling fluid
Cementing technology of long horizontal-section
well under oil-based drilling condition
Remote online transmission with geology tracking
and orientating technology while drilling
…… Gas
tes
t te
chn
olo
gy f
or
lon
g h
ori
zon
tal
wel
l
stag
ed f
ract
uri
ng
Standard staged fracturing
designing technology
Differentiation staged fracturing process
parameters optimization technology
Independent developed effective
fracturing material system
Pumping bridge plug +
perforation technology
Long horizontal-section coiled
tubing drilling technology
……
Pre
-pro
duct
ion &
dev
elo
pm
en
t
suppo
rtin
g t
echno
log
y
Microseismic monitoring
technology
Fracturing tracer monitoring
technology
Well completion operation under
high pressure
Coiled tubing completion
technology
Gas producing profile technology
based on fluid scanning imaging
……
En
vir
on
men
tal d
evel
op
men
t
sup
port
ing tec
hn
olo
gy
Land conservation through
cluster wells arrangements
Prevention of water pollution &
recycle utilization
Prevention of air pollution
Solid waste treatment for
environment protection
Prevention of noise pollution
……
Innovations have effectively broken through the technical bottlenecks of shale gas
exploration and development. Five technical systems adapted to Fuling Marine shale
gas characteristics were founded, which laid a firm theoretical and technical basis
for the large-scale shale gas exploration and development.
Created a “Well Factory” production
management pattern: reduced time period of
drilling and fracturing by 40% compared
with the initial phase.
“Well Factory”drilling site of Jiaoye
30 platform with Wheel-rail rig
“Well Factory” fracturing site of Jiaoye 42 platform
2. Established a replicable and propagable
shale gas development model
5000m step
drilling rig Rig base Moving system
Innovated a “Four Modernizations” construction mode: “standardized
design, standardized procurement, modularized construction, informationized
improvement” ground construction mode to achieve factory prefabrication ,
modular skid, skid-setup and digital management of shale gas ground
gathering and transportation system, and to establish a high-efficiency shale
gas field development and construction model.
Established a oil company model using "Market-oriented Operation
and Project-based Management "as the core, realized optimal
resources allocation worldwide, constantly reduced the development
cost. For a single well, the investment has been reduced by 20%
compared with the early investment.
3. Created a proper industrialized mode for shale gas
effective development and construction
Cooperation Company
Drilling Gas testing Well Logging Technical Services
Jia
ngh
an E
ngin
ee
ring
Corp
.
Zho
ngyu
an
En
gin
ee
ring
Corp
.
Jia
ngh
an u
nd
erg
roun
d
testin
g C
orp
.
Zho
ngyu
an
un
de
rgro
und
testin
g C
orp
.
Chu
an
qin
g u
nd
erg
roun
d
testin
g C
orp
.
Sh
en
gli u
nd
erg
roun
d
testin
g C
orp
.
Jia
ngh
an W
ell L
oggin
g
Co
rp.
Zho
ngyu
an
Well L
oggin
g
Corp
.
Nan
ya
ng W
ell L
oggin
g
Corp
.
Sch
lum
be
rger C
orp
.
Be
ijing Y
ilon
gh
en
gye
Corp
.
An
do
ng P
etro
leu
m
Te
ch
nolo
gy C
orp
.
Achieved the key equipment and supporting tools domestication,
brought large quantities into the field application, provided a strong
support for China’s shale gas rapid development.
Drill bit and PDM drill
assembly
4. Achieved the domestication of critical
technology and equipment
3000-type fracturing trucks strongly
support large-scale fracturing
Coiled tubing equipment
Drillable bridge plug
Strictly follow “Law of Production Safety”, “Law of Environmental Protection”,
safety assessment, environment assessment, occupation health
evaluation, ,maintain water scheme, earthquake safety, etc. Obtain government
approval before starting any implementation.
5. Achieved a safe and green shale gas development
Chairman of the board of supervisors
from State Council Liu Yi(third form left)
On-site inspection
Investigator from National Environmental
Protection Department (second from right)
On-site inspection
Deputy director of the Southwest
Supervision Center
from Ministry of Environmental
Protection Yang Weimin(third from left)
On-site inspection
Established a strict “Four in One” three-dimensional supervision system. Set up a
monitoring mechanism combining company, the third party, government and society to
24/7 monitor the whole process from all aspects including key operation steps (drilling,
measuring, recording, fracturing, gas testing) and vital parts, thus ensured all types of risk
under real-time control.
Compiled the Fuling shale gas field development environment monitoring programs, set
up 78 environment normalization monitoring sites, carried out background values
monitoring, routine and emergency monitor surface water, underground water, air, noise,
soil and other values. Since 2014, more than 10,000 monitoring data has been obtained,
showing development of Fuling shale gas did not affect or change the local environment.
Reduced fresh water consumption:
optimizing drilling and the design of
gas test construction reduced water
consumption per well by 12%.
Recycled waste water: reusing well-
processed waste drilling water,
fracturing flowback, water produced
with gas in hydraulic fracturing
achieved zero emissions.
Completed the technical support system. Implemented the “reduction-reuse-
recycle” economic model. By improving and optimizing design, using clean
energy and raw materials, taking advanced technology and equipment, as well
as integrated utilization, clean production was guaranteed during the whole
process.
Strictly prevented and controlled air pollution
Drilling: replaced diesel-powered drill rig with electric
net one, reducing energy consumption and waste gas
emissions.
Gas Testing:improved the process of gas testing and
flowing into the metering station, minimized the open
flow time. “Shale gas ground flowing test system” was
accepted as the National Utility Model Patent.
Gas Production:used a closed gas gathering and
transportation process, effectively avoided methane
emissions.
Strictly regulated and disposed solid waste
Established an emergency security system. Set up the emergency rescue center,
equipped with fire control, medical care and other emergency rescue professionals and
supplies; Founded the “security protection of shale gas development committee "with
local government in Fuling, strengthened cooperation with departments including local
police, fire, health and environmental monitoring, ect., to build a joint management
mechanism; Completed emergency plans to get “one well, one case; one station, one case;
one project, one case”.
Implemented the “cluster wells” design, “standardized” construction and
other intensive land use measures, strictly carried out land reclamation
programs to save land acquisition area more than 30%, restored ecology and
protected our beautiful homeland.
“Cluster Wells” design
There are 4-8 wells on one platform, saving more than 30%
land acquisition area.
“Parent Well and Infill Well” Mode
Using the existing resources from the old platform to maximize
the well site combination, without constructing new platform,
thus reducing the land occupation and construction investment.
Sinopec signed the “Fuling Shale Gas Development and Utilization Strategic
Cooperation Agreement” with the local government, established the shale gas
joint venture, made high-level coordination and decision-making mechanisms
and monthly joint meeting system, integrated enterprise development and
government coordination and services, and explored new mode of cooperation.
6. Created a win-win model of enterprises cooperation
Governments at different levels in Fuling, Chongqing set up energy
construction leading group, creating a good environment for gas field
construction.
Fulfilled social responsibility, actively participated in local public facilities
and welfare construction, took shale gas development as a link, effectively
promoted local employment, strongly supported local economy and society
development, thus, shared the win-win achievement with local people.
Participated in Jiaoshiba Town road construction
Brought stationery for Fuling primary
school
Brought best Spring Festival wishes to
local people
Sent out and explain popular
science handbook
Sinopec and Chongqing jointly opened the
Fuling-East shale gas transmission valve
7. Gradually Emerging Social Benefits.
Strongly promoted the adjustment and optimization of China’s energy
structure. Among the primary energies, natural gas consumption in China
is only 5.5%, far below the world average level 24% of the same period.
June 2015, through Sinopec Sichuan-East Gas Transmission pipeline,
Fuling shale gas was transported to central, eastern and southern China,
thus became a “great fortune” boosting the green development of
Chongqing and even cities along the line.
Established strategic partnership
with local enterprises such as
Chongqing Xinyu Corporation.
Hiring local labor Gas transportation to the
Jianfeng Chemical
Corporation
Promoted local economic development and benefited the local people.
8,000 people were involved in shale gas development in Jiaoshi town with
less than 3,000 indigenes, which greatly promoted the rapid development of
local catering industry, retail trade, hotels and other service industries.
According to statistics from the local government, Fuling shale gas has
brought a 1.5 % GDP growth in Fuling.
Greatly promoted energy conservation and emission control, improved
the environment. The completion of 5 billion m3 Fuling shale gas cumulative
production cut 6 million tons carbon dioxide emissions annually, the
equivalent of planting almost 55 million trees and nearly 4 million economy
cars closed for a year. While reducing 150,000 tons of sulfur dioxide and
50,000 tons of nitrogen oxide emissions, the produced shale gas could
meet the daily gas demand for 32 million families.
Dec. 29, 2015, Sinopec announced the construction of 2nd 5 billion
m3/year shale gas production in Fuling officially started.
Sinopec will adhere to a general idea “well manage the first stage, well
construct the second stage and prepare for the third stage” , follow “deploy as
a whole, implement by steps, integrate evaluation and construction,
optimization and adjustment” principle and “high-level, high speed, high
quality and high efficiency” standard, and spare no effort on building a green,
efficient, exemplary, sunny, harmony and cultural gas field.
30
Gas Testing Shows:
WeiYe 1HF daily produced 175 thousand m3
shale gas from its Silurian Longmaxi Formation;
Yongye 1HF daily produced 50 thousand m3
shale gas from its Silurian Longmaxi Formation;
JinYe-1HF daily produced 84 thousand m3 shale
gas from its Cambrian Qiongzhusi Formation.
Shale gas commercial discovery
in southern Sichuan
彭水 南川
丁山
荣昌-永川 威远-荣县
井研-犍为
美姑-五指山
Southestern
Sichuan Southwestern
Sichuan
Fuling Jiaoshi
林滩场
Southern
Sichuan
Longye 1HF daily produced 57.5 thousand
m3 shale gas from its Silurian Longmaxi
Formation;
Dingye 2HF daily produced 40-100
thousand m3 shale gas from its Silurian
Longmaxi Formation.
Shale gas development breakthrough
in southeastern Sichuan
Key Shale Gas Exploration Area in Sichuan Basin
8. New Progress of Shale Gas Exploration in Sichuan Basin
Wish Sino-US 2nd phase shale
gas training a great success!
Thank you!