2017 Vol. 34, No. 2

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2017, 34(2)
Abstract(390) PDF (872KB)(69)
Abstract:
Numeric Simulation of Factors Affecting the Strengthening of Borehole Wall
LI Jia, QIU Zhengsong, SONG Dingding, LIU Junyi, ZHONG Hanyi, WANG Weiji
2017, 34(2): 1-8. doi: 10.3969/j.issn.1001-5620.2017.02.001
Abstract(714) PDF (13051KB)(152) [Cited by] (11)
Abstract:
Borehole wall strengthening, as an early-stage borehole wall plugging technology, has been widely applied and developed in recent years, while the influencing factors and mechanism of the technology is still not revealed yet. In a study conducted to analyze the influencing factors and the mechanism ...
Water Base Drilling Fluid Technology for Horizontal Shale Gas Drilling in Sichuan and Yunnan
LIU Jingping, SUN Jinsheng
2017, 34(2): 9-14. doi: 10.3969/j.issn.1001-5620.2017.02.002
Abstract(806) PDF (2640KB)(173) [Cited by] (21)
Abstract:
Borehole wall instability has been a problem frequently encountered in horizontal shale gas drilling with water base drilling fluids. A new type of water base drilling fluid has been developed for use in shale gas drilling in Sichuan and Yunnan provinces. Higher alcohols and potassium salt of sulfon...
Research and Application of FLAT-PRO Constant Rheology Synthetic Base Drilling Fluid in Deepwater Operation
HU Wenjun, XIANG Xiong, YANG Honglie
2017, 34(2): 15-20. doi: 10.3969/j.issn.1001-5620.2017.02.003
Abstract(708) PDF (3201KB)(207) [Cited by] (14)
Abstract:
Technical problems encountered in deepwater drilling, such as low temperature, narrow drilling window, formation of gas hydrate by shallow natural gas and hole sloughing etc. have posed rigorous requirements to drilling fluids. Using GTL Saraline 185V as the base fluid, a deepwater synthetic base dr...
Development and Field Application of a New High Molecular Weight Hollow Micro Beads
LI Sheng, XIA Bairu, WANG Jianyu, SHI Bingzhong, CHEN Cheng, ZHAO Suli
2017, 34(2): 21-25. doi: 10.3969/j.issn.1001-5620.2017.02.004
Abstract(596) PDF (5729KB)(133) [Cited by] (1)
Abstract:
Hollow plastic microbeads made of polystyrene previously developed are easy to agglomerate when used as a lightweight agent in field drilling fluids, and are thus easy to be bond with drilled cuttings, thereby being removed by solids control equipment and resulting in a gradual increase in mud weigh...
Application of Aqueous Acrylic Resin in Invert Emulsion Drilling Fluids
HUANG Xianbin, JIANG Guancheng, DENG Zhengqiang
2017, 34(2): 26-32. doi: 10.3969/j.issn.1001-5620.2017.02.005
Abstract(688) PDF (2806KB)(154) [Cited by] (15)
Abstract:
Asphaltene and humic acid products widely used in oil base muds (OBMs) have deficiencies such as seriously viscosifying the OBMs, high concentration requirement, limited filtration control performance and poor high temperature stability. An aqueous acrylic resin, WAR, was developed for use in OBMs t...
Development and Evaluation of Drilling Detergent Lubricant CLSD as Fast-drilling Agent
YANG Qianyun, WANG Baotian, CAI Yong, LI Xiuling, YUAN Li
2017, 34(2): 33-38. doi: 10.3969/j.issn.1001-5620.2017.02.006
Abstract(667) PDF (2739KB)(160) [Cited by] (5)
Abstract:
CLSD is a drilling detergent lubricant made from waste grease under predetermined synthesis process and technical parameters. Laboratory evaluation of CLSD showed that it had good compatibility with other additives, and rendered no bad effect on mud rheology. It moderately reduced API filter loss of...
Synthesis and Evaluation of a High Temperature AMPS/AM/NVP Copolymer Filter Loss Reducer
JIANG Guancheng, QI Yourong, AN Yuxiu, GE Qingying, ZHANG Lingyu
2017, 34(2): 39-44. doi: 10.3969/j.issn.1001-5620.2017.02.007
Abstract(745) PDF (5946KB)(212) [Cited by] (27)
Abstract:
Filter loss reducers presently in use had poor stability and filtration control ability in drilling deep and ultra-deep wells. To overcome these problems, a terpolymer filter loss reducer has been synthesized in laboratory with 2-acrylamido-2-methylpropane sulfonic acid (AMPS), acrylamide (AM), and ...
Simulation of Mud Loss in Formations with Fracture Network
LI Daqi, LIU Sihai, LIN Yongxue, KANG Yili
2017, 34(2): 45-50. doi: 10.3969/j.issn.1001-5620.2017.02.008
Abstract(729) PDF (1552KB)(170) [Cited by] (12)
Abstract:
Based on the Monte Carlo random modeling theory, a 3-D discrete fracture network formation model has been established in an effort to solve the mud loss problem taking place in complex fractured formations. Using the Bingham model drilling fluid, a model describing the mud losses in networked fractu...
New Method for Evaluating Filtration and Mud Cake Building Performance of Drilling Fluid for Shale Drilling
WANG Pingquan, JING Yujuan, PENG Zhen, BAI Yang, XIE Junni
2017, 34(2): 51-56. doi: 10.3969/j.issn.1001-5620.2017.02.009
Abstract(682) PDF (4499KB)(147) [Cited by] (7)
Abstract:
To satisfy the need for filtration control performance test with dense low permeability media, a test required for shale gas drilling, a simulated low permeability mud cake formed in shale formation has recently been prepared using barite of millimicron in particle size and commercial barite as soli...
Application of KCl-Amine Polymer Sulfonate Drilling Fluid in Well Mashen-1
FAN Xiangsheng, MA Honghui, RAN Xingxiu
2017, 34(2): 57-63. doi: 10.3969/j.issn.1001-5620.2017.02.010
Abstract(735) PDF (1068KB)(142) [Cited by] (17)
Abstract:
The Well Mashen-1 is a key wildcat well of the Exploration Branch of Sinopec located at the high position of the Malubei Structure in the Tongnanba tectonic zone, northeast Sichuan. Completed at a depth of 8418 m, the well was designed to explore the Longwang Temple Formation of Lower Cambrian Serie...
Disposing Waste Oil Base Drilling Fluid from the Wei202H3 Platform
WANG Xingyuan, OU Xiang, MING Xiansen
2017, 34(2): 64-69. doi: 10.3969/j.issn.1001-5620.2017.02.011
Abstract(665) PDF (3676KB)(162) [Cited by] (18)
Abstract:
Waste oil base muds (OBMs) are disposed of presently by burial or reinjection. Potential pollution to environment and waste of large amount of mineral oil are the problems inusing these disposal methods. A study has been conducted on the recycling of waste OBMs from the Platform 202H3. The waste mud...
Drilling Fluid Technology for Angle Build Section of Horizontal Wells in Iraq Missan Fauqi Oilfield
CHEN Jianxin, ZHAO Zhenshu, LI Guanghuan, HOU Shili, DONG Dianbin, WANG Xiaoqin, WANG Qian
2017, 34(2): 70-74. doi: 10.3969/j.issn.1001-5620.2017.02.012
Abstract(920) PDF (2771KB)(170) [Cited by] (4)
Abstract:
In horizontal drilling in the Fauqi oilfield, the angle build and hold sections are generally at depths between 3 350-4 480 m, the Cretaceous system, which mainly composed of limestone, mudstone and shale. Long time of hydrocarbon development has resulted in low formation pressure. During drilling, ...
Optimization and Application of Horizontal Drilling Fluid in Yanchang Oilfield
LI Wei, ZHANG Wenzhe, DENG Dudu, LI Hongmei, WANG Tao, WANG Bo, WANG Xiaonan, LI Danyang
2017, 34(2): 75-78. doi: 10.3969/j.issn.1001-5620.2017.02.013
Abstract(713) PDF (562KB)(149) [Cited by] (10)
Abstract:
The KPAM polymer drilling fluid presently used in horizontal drilling in Yanchang Oilfield has low inhibitive capacity and poor rheology, resulting in frequent pipe sticking and inability to exert weight on bit during drilling. To improve the performance of the KPAM polymer drilling fluid, a cationi...
Comparison of Performances of SMP-I and SMP-II at High Temperature and in Salt Environment
XU Chuntian, ZHANG Ruifang, XU Tongtai, XIAO Weiwei
2017, 34(2): 79-82. doi: 10.3969/j.issn.1001-5620.2017.02.014
Abstract(687) PDF (5044KB)(175) [Cited by] (5)
Abstract:
Drilling fluid additives should have their range of use clearly defined to make the best use of them, and great attention should be paid on this issue. Take the SMP-Ⅰ and SMP-Ⅱ as examples, the application characteristics, production technology, and the mechanisms of reducing filtration rate and res...
Treatment of Formation Water Invasion in Air Drilling
ZHANG Weijun, DENG Mingyi, XIANG Chaogang, CHEN Junbin, OU Yangwei
2017, 34(2): 83-86. doi: 10.3969/j.issn.1001-5620.2017.02.015
Abstract(583) PDF (2694KB)(133) [Cited by] (3)
Abstract:
A serious concern in air drilling is the invasion of formation water into the hole, viscosifying the dry cuttings into viscous lumps which are adhered at the surface of the drill string and borehole wall, resulting in pipe sticking. Based on the mechanism that fluid with low surface tension can pene...
Effects of Particle Size on Hydration Heat and Mechanical Performance of Cement
HUANG Jin, YAO Xiao, JIANG Xiang, WANG Zhiguo, LV Zhiguo, LI Zhiyuan
2017, 34(2): 87-92. doi: 10.3969/j.issn.1001-5620.2017.02.016
Abstract(842) PDF (4240KB)(132) [Cited by] (11)
Abstract:
The particle sizes of oil well cement are closely related to its performance and use. Oil well cements of different particle size distribution obtained with three grinding methods have been studied for their early hydration exothermic rate (rate of hydration heat liberation), hydration product of se...
Research on the Hydration Mechanism of A Kind of Solidifiable Leakage-proof Working Fluid
LI Zaoyuan, ZHOU Jingdong, DENG Zhizhong, GUO Xiaoyang
2017, 34(2): 93-98. doi: 10.3969/j.issn.1001-5620.2017.02.017
Abstract(611) PDF (4506KB)(138) [Cited by] (4)
Abstract:
While cementing in the low pressure and easy to leak hole section, low formation bearing pressure、leakage and channeling often lead to low cementing quality. So a low density (1.30 g/cm3) working fluid which can be solidifiable and prevent leakage was studied to solve the problem. The working fluid ...
Study and Application of Slim Hole Cementing Technology for Ultra-deep Well Mashen-1
KANG Haitao, ZENG Yanjun, MU Yajun, CAI Yunping, FENG Lin
2017, 34(2): 99-105. doi: 10.3969/j.issn.1001-5620.2017.02.018
Abstract(887) PDF (4876KB)(143) [Cited by] (4)
Abstract:
The Well Mashen-1 is the deepest well found in Asia, the gas zone of which has been sealed with 146.1 mm liner string. Difficulties encountered during drilling included HTHP, small annular clearance, low displacing efficiency, narrow drilling window, and severe U-tube effect. In combating these prob...
Cementing Tight Reservoir with Low Temperature High Strength Tough Cement Slurry
DING Zhiwei, YANG Junlong, WANG Yao, JI Hongfei, YUAN Xiong, RAO Kaib
2017, 34(2): 106-110,116. doi: 10.3969/j.issn.1001-5620.2017.02.019
Abstract(921) PDF (4174KB)(124) [Cited by] (11)
Abstract:
The Yanchang tight reservoir in the Changqing has shallow burial depth and low static bottom hole temperature. Conventional cement slurries used in this area produced highly brittle set cements with strengths that are developed very slowly. In large-scale stimulated reservoir volume fracturing, the ...
Liner Cementing the high pressure gas wells in the Block Gaoshiti-Moxi
SONG Yousheng, ZOU Jianlong, ZHAO Baohui, LIU Aiping
2017, 34(2): 111-116. doi: 10.3969/j.issn.1001-5620.2017.02.020
Abstract(802) PDF (638KB)(135) [Cited by] (12)
Abstract:
In cementing the φ177.8 mm liner string in high pressure gas wells in the Block Gaoshiti-Moxi of southwest oilfield, problems such as active gas zones, narrow drilling windows, poor compatibility of fluids and large temperature difference at high temperatures, were encountered. Technical measures we...
Development of a New Low Density High Strength Hydraulic Fracturing Proppant
DONG Bingxiang, CAI Jingchao, LI Shiheng, NI Xiaojin, CHEN Ting, TU Zhiwei
2017, 34(2): 117-120,125. doi: 10.3969/j.issn.1001-5620.2017.02.021
Abstract(627) PDF (3872KB)(124) [Cited by] (11)
Abstract:
The use of high performance low density ceramic proppants in reservoir fracturing not only avoids the settling of proppant particles during their migration in fractures, thereby effectively lengthening the fracturespropped and enhancing the fluid conductivity of the fractures, it also helps relax th...
Study and Application of a New Self-diverting Acid for Use in Sandstone Fracturing
GAO Shang, FU Yangyang, MENG Xianghai, LIU Changlong, WANG Rui
2017, 34(2): 121-125. doi: 10.3969/j.issn.1001-5620.2017.02.022
Abstract(706) PDF (2922KB)(122) [Cited by] (16)
Abstract:
The main reservoirs in the Bohai oilfield are characteristic of big permeability differences between different production layers, and high heterogeneity. This has resulted in the acid solution flowing mainly into the high permeability layers, further aggravating the permeability differences, making ...
Calculating Low Temperature Phase Equilibrium of NaCl-KCl-CaCl2 Completion Fluid Based on Pitzer Model
ZHAO Zhiqiang, CHEN Yuanbo, YI Yong
2017, 34(2): 126-130. doi: 10.3969/j.issn.1001-5620.2017.02.023
Abstract(612) PDF (2609KB)(139) [Cited by] (4)
Abstract:
Crystallization point, a main performance index of composite brine completion fluids, can only be obtained through laboratory experiments because most of the articles and handbooks only give the crystallization point of the single salt. If the crystallization point of a composite brine can be calcul...

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