2019 Vol. 36, No. 2

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2019, 36(2)
Abstract(337) PDF (656KB)(77)
Abstract:
Application of Pickering Emulsion in Oil Base Drilling Fluids
SUN Qiang, FAN Zhe, ZHAO Chunhua, GENG Tie, SUN Dejun
2019, 36(2): 133-140. doi: 10.3969/j.issn.1001-5620.2019.02.001
Abstract(888) PDF (5138KB)(356) [Cited by] (6)
Abstract:
Pickering emulsion is widely used in biomedical science, food and cosmetic industries because of its good aggregation stability, variety, ease of handling, low cost, low toxicity and biocompatibility etc. In recent years, more attention has been drawn to the use of Pickering emulsion in petroleum in...
Discussion on the Enhancement of the Inhibitive Capacity of Oil Base Drilling Fluids in Shale Gas Drilling
ZHANG Gaobo, GAO Qinlong, MA Qianyun
2019, 36(2): 141-147. doi: 10.3969/j.issn.1001-5620.2019.02.002
Abstract(1016) PDF (639KB)(310) [Cited by] (16)
Abstract:
Downhole problems have been frequently encountered in horizontal shale gas drilling with oil base drilling fluids in Sichuan, China. This paper, based on the analyses of the characteristics of the shale in Longmaxi formation in Weiyuan, Sichuan, discusses how to enhance the inhibitive capacity of oi...
High Temperature Salt Resistant Filter Loss Reducers for Water Base Drilling Fluids: Synthesis with Explosive Polymerization Method and Performance Evaluation
WANG Maogong, YAN Xing, PENG Jie
2019, 36(2): 148-152. doi: 10.3969/j.issn.1001-5620.2019.02.003
Abstract(1071) PDF (3479KB)(249) [Cited by] (12)
Abstract:
Sodium styrene sulfonate and AMPS were used to react with acrylamide and dimethyl diallyl ammonium chloride respectively in explosive polymerization to produce two high temperature salt resistant filter loss reducers WS-1 and WS-2. Explosive polymerization was used in the synthesis reaction because ...
Development and Application of the High Temperature Plugging Agent PF-MOSHIELD for Oil Base Drilling Fluids
WANG Wei, ZHAO Chunhua, LUO Jiansheng, LI Chao, LIU Gang, GENG Tie
2019, 36(2): 153-159. doi: 10.3969/j.issn.1001-5620.2019.02.004
Abstract(842) PDF (12511KB)(155) [Cited by] (18)
Abstract:
PF-MOSHIELD, a high temperature plugging agent, has been developed for use in oil base drilling fluids to enhance the efficiency of plugging fractures with wide size distribution at elevated temperatures in drilling high temperature high pressure wells complicated with developed beddings and microfr...
The Effects of Weight Materials on the Performance of High Temperature Ultra-high-density Diesel Oil Base Drilling Fluid
ZHU Jinzhi, XU Tongtai, WU Xiaohua, HU Risu, LUO Wei, REN Lingling
2019, 36(2): 160-164. doi: 10.3969/j.issn.1001-5620.2019.02.005
Abstract(911) PDF (3021KB)(283) [Cited by] (12)
Abstract:
High temperature ultra-high-density oil base drilling fluids have long been used in drilling the salt/gypsum formations of the Kumugeliemu group in Kuche piedmont area in Tarim Basin. Oil base drilling fluids used in this area should have good rheology, low HTHP filtration rate, good plugging capaci...
Study and Application of High Temperature Gas Blocking Plug
LUO Faqiang, HAN Zixuan, CHAI Long, CHEN Xiaofei
2019, 36(2): 165-169. doi: 10.3969/j.issn.1001-5620.2019.02.006
Abstract(695) PDF (1476KB)(300) [Cited by] (6)
Abstract:
A high temperature gas blocking plug has been developed to resolve the problems of too fast gas channeling and long period of gas drainage encountered in high temperature high pressure fractured reservoirs in the periphery of Tazhong area. The gas blocking plug, developed with choice high temperatur...
Development and Evaluation of a Water Base Drilling Fluid Lubricant SDL-1
LI Bin, JIANG Guancheng, WANG Jinxi, WANG Lan, LIU Fan, WANG Xi, YANG Lili
2019, 36(2): 170-175. doi: 10.3969/j.issn.1001-5620.2019.02.007
Abstract(1561) PDF (3093KB)(284) [Cited by] (29)
Abstract:
High friction and high torque are two factors restricting the use of water base drilling fluids in extended reach horizontal drilling. A water base drilling fluid lubricant SDL-1 has been developed to resolve these problems. SDL-1 is a compound of ester synthesized with long chain fatty acid and low...
Analysis on the Feasibility of Reducing Drilling Fluid Density with Silicate Drilling Fluid in Drilling Unstable Formations
TIAN Bo, ZHOU Shanshan, WANG Tangqing, TIAN Zheng
2019, 36(2): 176-180. doi: 10.3969/j.issn.1001-5620.2019.02.008
Abstract(671) PDF (3775KB)(229) [Cited by] (8)
Abstract:
Drilling operations in the Pearl River Mouth Basin have been face with downhole troubles in the Paleogene System, such as borehole wall collapsing, pipe sticking and difficulties in tripping the drill string. Addressing these problems with increased drilling fluid density resulted in other problems ...
Application of a Fast-swelling Gel Lost Circulation Material in Shale Gas Drilling in Block Changning
LI Ling, LI Wei, OU Yangwei
2019, 36(2): 181-188. doi: 10.3969/j.issn.1001-5620.2019.02.009
Abstract(820) PDF (4027KB)(264) [Cited by] (16)
Abstract:
Shale gas drilling in block Changning is conducted in an area with karst landform at the surface and underground cavern and underground rivers resulting in severe water kick and lost return during drilling in surface formations. To address these problems, bridging slurries, high filtration rate lost...
Controlling Mud Losses in Well Shunbei 52X with High Temperature Chemical Gels
GUO Xinjian, YU Peizhi
2019, 36(2): 189-193. doi: 10.3969/j.issn.1001-5620.2019.02.010
Abstract(679) PDF (760KB)(262) [Cited by] (23)
Abstract:
The well Shunbei 52X is an exploratory well located in the north margin of the Shuntuoguole low uplift, Tarim Basin. This well penetrated a section of the easy-to-break Silurian igneous rocks with plenty of fractures, poor cementation and low-pressure bearing capacity. Repeated mud losses and well k...
Key Drilling Fluid Technology for Well Chuanshen-1
WEI Yu, BAI Long, WANG Xiaonan
2019, 36(2): 194-201. doi: 10.3969/j.issn.1001-5620.2019.02.011
Abstract(661) PDF (1250KB)(271) [Cited by] (8)
Abstract:
Well Chuanshen-1 is an ultra-deep exploratory well drilled in northeast Sichuan by Sinopec. Drilling of this well was faced with several technical difficulties such as high formation temperature, complex formations penetrated, less geological data available, borehole wall instability and high mud de...
Drilling Fluid Technology for Well Ming-15 in Mingbulak Oilfield, Uzbekistan
GAI Jing'an, LI Xicheng, XUE Weiqiang, LYU Xiaoping, XIAO Bin, ZHAO Chen, LIU Xiumei
2019, 36(2): 202-207. doi: 10.3969/j.issn.1001-5620.2019.02.012
Abstract(681) PDF (539KB)(221) [Cited by] (2)
Abstract:
Formations drilled in the Mingbulak Oilfield in Uzbekistan have very complex structures. Wells drilled in this oilfield with depths between 800 m and 3,500 m penetrated saltwater-bearing zones, long segment of anhydrite, gypsum/shale mixed formations and highly water sensitive formations. Part of th...
Drilling Fluid Technology for Drilling Deep Broken Formations in the Exploratory Well Huashen-1x
WANG Hong, YANG Can, ZHOU Xuehan, ZHANG Tao, YE Shunyou, JIE Jiahui
2019, 36(2): 208-213. doi: 10.3969/j.issn.1001-5620.2019.02.013
Abstract(648) PDF (885KB)(235) [Cited by] (4)
Abstract:
Well Huashen-1x, designed to drill to 5713.16 m, is the deepest exploratory extended-reach well deployed by CNPC in Fushan oilfield, Hainan. This well was drilled to ascertain the reservoir engineering data of the member Liu-3 located on the top of a fault nose structure. This well is located in the...
Study on the Method of Evaluating Plugging Capacity of Nanoparticles Used in Drilling Fluid
LIU Zhendong, HE Lunjun, LI Hui, ZHOU Shouju, MING Yuguang
2019, 36(2): 214-217. doi: 10.3969/j.issn.1001-5620.2019.02.014
Abstract(765) PDF (2011KB)(313) [Cited by] (8)
Abstract:
Nanoparticle plugging agent is presently a research hotspot of drilling fluid technology, no special method has ever been developed for evaluating the plugging capacity of this category of drilling fluid additives though. When using the presently available methods to evaluate nanoparticles in labora...
The Effects of a New Phase Change Material on the Properties of Low Heat Cement Slurries
SONG Jianjian, XU Mingbiao, WANG Xiaoliang, HUANG Feng, QIN Guochuan
2019, 36(2): 218-223. doi: 10.3969/j.issn.1001-5620.2019.02.015
Abstract(900) PDF (3739KB)(221) [Cited by] (19)
Abstract:
When cementing wells drilled in low temperature deep water zones, cement slurry should give off less heat during hydration process to minimize the increase of temperature of the formations with natural gas hydrate. A new phase change material has been developed for use in low heat cement slurries us...
A New Low Temperature Early Strength Agent for Ultradeep Water Operation
TIAN Ye, FU Junfang, SONG Weikai, XIANG Xianzhong
2019, 36(2): 224-228. doi: 10.3969/j.issn.1001-5620.2019.02.016
Abstract(851) PDF (3776KB)(190) [Cited by] (9)
Abstract:
CNOOC has in recent years drilled several ultra-deep water wells in South Sea of China, the deepest water depth has been more than 2,000 m. Extremely low temperature has imposed serious challenges to the strength of set cement. Two new low temperature early strength agents, ACC and NS, have been dev...
Calculation of Displacement Efficiency When Casing String is Rotating Based on Herschel-Bulkley Model
CHENG Yongqin, LI Qian, YIN Hu, SHI Jiangang, SONG Lin, XIONG Chao, LI Shiping
2019, 36(2): 229-233. doi: 10.3969/j.issn.1001-5620.2019.02.017
Abstract(835) PDF (4600KB)(233) [Cited by] (4)
Abstract:
Rotating casing string during well cementing is an important measure of increasing displacement efficiency. To quantitatively calculate the displacement efficiency when casing string is being rotated during pumping of cement slurry, infinitesimal method is used to analyze the stresses exerted on the...
Integrity Analysis of Cement Sheath in Tight Gas Reservoir Formations in Changqing
DUAN Zhifeng, MENG Huajun, LAI Xuan'ang, ZHANG Yanna, HUANG Zhanying
2019, 36(2): 234-239. doi: 10.3969/j.issn.1001-5620.2019.02.018
Abstract(763) PDF (4640KB)(196) [Cited by] (3)
Abstract:
The tight gas reservoirs in Changqing Oilfield have high fracturing pressures, imposing high requirements on the mechanical property of cement sheath. The integrity of cement sheath of a typical hole interval (φ152.4 mm hole size×φ114.3 mm casing size) of a well was analyzed using the established ca...
Cementing of Large-sized Casing through Salt and Gypsum Interbeds in Well Keshen-243
LIU Fangyi, GAO Fei, LI Ruohua, ZHANG Xiaojian, TIAN Baozhen, YAO Bohan, HAN Zili
2019, 36(2): 240-244. doi: 10.3969/j.issn.1001-5620.2019.02.019
Abstract(1088) PDF (1715KB)(268) [Cited by] (1)
Abstract:
Keshen-243 is an appraisal well located 29 km to Baicheng County, Xinjiang. The 3rd interval of this well was drilled to 5,532 m, and two-stage cementing was to be conducted to cement the hole penetrating Kumugeliemu group (salt rocks). Bottom hole static temperature of the 3rd interval was 127.6℃, ...
Development and Performance Evaluation of a Boron-modified Nanosilica Crosslinking Agent
XIONG Junjie, LI Chun, YANG Shengwen, AN Qi, YU Ji, WANG Shihua
2019, 36(2): 245-249. doi: 10.3969/j.issn.1001-5620.2019.02.020
Abstract(702) PDF (1892KB)(191) [Cited by] (9)
Abstract:
Field application of guar gum fracturing fluid treated with organoboron and inorganoboron crosslinking agents has been faced with problems such as large amount of guar gum consumed and high residue content of the fracturing fluid. In laboratory research on these problems, nanosilica was first made b...
Discussion on the Quantitative Study and Impact Factors of Differentialized Corrosion in Fractures Generated by Acid Corrosion
WU Xia, YI Xiangyi, HUANG Wenqiang, HAO Wei, LI Qin
2019, 36(2): 250-256. doi: 10.3969/j.issn.1001-5620.2019.02.021
Abstract(612) PDF (4022KB)(181) [Cited by] (4)
Abstract:
The pattern and extent of the viscous fingering of an acid are two key factors affecting the differentialized corrosion of the wall surface of fractures by the acid. Quantitative srudy of the relationship between the two factors is rarely seen at present. In laboratory experiment, the viscous finger...
Development and Application of a Functional Slick Water
WANG Gaihong, LI Zefeng, GAO Yan, ZHANG Mian, LAN Jianping, AN Zixuan
2019, 36(2): 257-260. doi: 10.3969/j.issn.1001-5620.2019.02.022
Abstract(1008) PDF (2413KB)(232) [Cited by] (15)
Abstract:
To render fracturing fluid with functions of slick water and sand carrying fluid, and to recycle flowed back fracturing fluid having high salinity, a functional slick water has been developed with liquid functional drag reducer and conditioning agents. A water solution of low concentration functiona...
Pulsed Online Acidizing Augmented Injection to Sandstone Reservoirs
ZHANG Caihong, YANG Qianlong, LI Fawang, HE Yao
2019, 36(2): 261-264. doi: 10.3969/j.issn.1001-5620.2019.02.023
Abstract(612) PDF (712KB)(195) [Cited by] (17)
Abstract:
Water injection is a key technique for long and efficient development of oil. In recent years, more and more wells in some blocks of the Huaqing oilfield are faced with increasing injection pressure resulted from the physical properties of the reservoir and the quality of injected water. Presently i...

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