2024 Vol. 41, No. 3

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DRILLING FLUID
The Development and Application of Nitrogen-Containing Graphene for Oil-Based Drilling Fluids
ZHANG Honghu
2024, 41(3): 279-287. doi: 10.12358/j.issn.1001-5620.2024.03.001
Abstract(484) HTML (201) PDF (3683KB)(77)
Abstract:
The marine facies Leikoupo formation in the west of Sichuan Province is a broken formation, in the later stage of horizontal drilling, it is frequently unable to exert weight on the drill bit, and borehole wall instability is another problem that haunts the drilling engineers. Analyses of these prob...
Study on Effects of Fluid Properties on Borehole Pressure under Temperature and Pressure Coupling in High Temperature Deep Wells
LIU Pingjiang, HE Jianyong, ZHANG Ye, BI Yi, ZHANG Ruihua, YANG Mou
2024, 41(3): 288-295. doi: 10.12358/j.issn.1001-5620.2024.03.002
Abstract(433) HTML (171) PDF (2993KB)(65)
Abstract:
High temperature high pressure (HTHP) environment in deep wells plays an important role in mud rheology control; omitting its effects will lead to an inaccurate knowledge of hole pressures and a negative influence on safe drilling. Based on the principle of energy conservation, a borehole temperatur...
A Model for Calculating Annular Pressure Loss in Slim Hole Taking into Account Tool Joint
CHEN Yufei, AN Jintao, ZHANG Hui, LI Jun, ZHOU Yingcao, LU Zongyu
2024, 41(3): 296-304. doi: 10.12358/j.issn.1001-5620.2024.03.003
Abstract(354) HTML (140) PDF (3692KB)(70)
Abstract:
Slim hole drilling as an important technology is more and more used in developing deep oil and gas resources. In slim hole drilling, the much higher annular pressure losses impose a challenge to the annular pressure control. Accurate prediction of the annular pressure losses under the condition of e...
Use Oil Based Drilling Fluid to Stabilize Borehole Wall and Prevent and Control Mud Losses in Fuxing Area
ZHOU Zhongya
2024, 41(3): 305-317. doi: 10.12358/j.issn.1001-5620.2024.03.004
Abstract(450) HTML (147) PDF (4984KB)(91)
Abstract:
In shale gas drilling in the Fuxing area, downhole troubles, such as mud losses in the Lianggaoshan formation, coexistence of well kick and mud losses in the Dongyuemiao member of the Ziliujing formation as well as borehole wall collapse which resulted in frequent pump and top drive halt, have frequ...
An Ultra-High Temperature Coordinate Bond Oligomer Thinner
HE Yinbo, LIANG Hao, JING Yujuan, DU Mingliang, LI Xiaoqing
2024, 41(3): 318-324. doi: 10.12358/j.issn.1001-5620.2024.03.005
Abstract(349) HTML (124) PDF (2518KB)(59)
Abstract:
An ultra-high temperature coordinate bonding oligomer thinner AA-AMPS-TA (named PAAT) is synthesized as a way of dealing with the problems encountered in using high density water-based drilling fluids at elevated temperatures. These problems involve high filtration rate, high ECD and internal fricti...
Study on Damage by Drilling Fluid of Fractured Tighten Reservoirs in Bozhong Sag
ZHANG Yufei, WANG Chaoqun, XU Botao, MIAO Hailong, LUO Cheng, SU Junlin
2024, 41(3): 325-329. doi: 10.12358/j.issn.1001-5620.2024.03.006
Abstract(282) HTML (112) PDF (2483KB)(60)
Abstract:
The evaluation of reservoir damage is important to reservoir protection and oil and gas yield improvement. Reservoirs in the Bozhong sag of the Bohai Bay Basin are naturally fractured tight reservoirs, coring in these reservoirs is difficult and many different methods of evaluating the reservoir dam...
Prediction of Gas Well Productivity Based on Attribution Analysis of Controllable Factors of HEM Water-Based Drilling Fluid to Gas Reservoir Damage
LIAO Gaolong, LIANG Hao, MA Shuangzheng, ZHANG Yaoyuan, SHEN Yuan, NAN Yuan, WANG Guanxiang, HE Yinbo
2024, 41(3): 330-336. doi: 10.12358/j.issn.1001-5620.2024.03.007
Abstract(218) HTML (97) PDF (2689KB)(46)
Abstract:
As the depth of drilling increases, the prevention and control of reservoir damage caused by drilling fluids has become increasingly prominent, and reservoir protection has become a key factor in the full release of gas field production capacity. As the well depth deepens, the various properties of ...
A High-performance Waterproof Lock Agent For Low Permeability Reservoir
WANG Junping, CAO Qingtian, YANG Guodong, CHEN Liang, GUAN Yulong, XU Peng
2024, 41(3): 337-343. doi: 10.12358/j.issn.1001-5620.2024.03.008
Abstract(350) HTML (140) PDF (3242KB)(60)
Abstract:
Low permeability reservoir has the characteristics of dense rock, poor physical properties and small pore throat. External fluid can enter the pore throats of the reservoir under the action of capillary force, causing water lock damage, which seriously affects the production of low permeability rese...
Synthesis of Sulfurized Fatty Acid Ester and its Application in High TemperatureHigh Pressure Drill-in Fluids
XIA Xiaochun, ZOU Yang, WANG Zhiyong, ZHANG Zitong, SONG Yu, DAI Yuanjing
2024, 41(3): 344-349. doi: 10.12358/j.issn.1001-5620.2024.03.009
Abstract(354) HTML (153) PDF (3599KB)(56)
Abstract:
In high temperature extended reach well drilling, the water-based drilling fluids are generally treated with liquid lubricants to alleviate friction. In high density, high salinity and high temperature conditions, the lubricity of the liquid lubricants is not enough to reduce the friction to the req...
Use of Compound Desulfurizing Agent in High Sulfur Feixianguan Formation Drilling in Northeast Sichuan with Oil Based Drilling Fluids
XIAO Jinyu, ZHOU Huaan, BAO Dan, WANG Wei, YANG Lanping, JIANG Xianjun
2024, 41(3): 350-356. doi: 10.12358/j.issn.1001-5620.2024.03.010
Abstract(368) HTML (151) PDF (2022KB)(73)
Abstract:
The Feixianguan gas reservoir in northeast Sichuan is a high to ultra-high sulfur content reservoir. Based on the analyses of the geology of the Feixianguan formation and the difficulties in drilling fluid operation, a desulfurization measure is presented for field operation with oil based drilling ...
CEMENTING FLUID
A Low Temperature Early Strength Gel Material Based on Reconstruction of Hydrate Layer Frame
XU Hongzhi, SONG Weichen, BU Yuhuan, XIANG Changyou, LIU Huajie, LU chang
2024, 41(3): 357-363. doi: 10.12358/j.issn.1001-5620.2024.03.011
Abstract(268) HTML (83) PDF (2069KB)(47)
Abstract:
In the trial production of natural gas hydrate resources, sand production often forces the operation to terminate. A study, aimed at the construction of low temperature early strength gel materials through reconstruction of hydrate layer frames, is conducted based on the experiences gained in the se...
Preparation and Evaluation of an H2S Corrosion Inhibitor for ZnFe-LDHs Oil Well Cement
HE Minhui, YAO Ming, YAN Yubo, MEI Kaiyuan, CHENG Xiaowei
2024, 41(3): 364-373. doi: 10.12358/j.issn.1001-5620.2024.03.012
Abstract(281) HTML (102) PDF (6578KB)(49)
Abstract:
In developing the highly acidic oil and gas resources which are abundant in China, the set cement in the wellbore will long endure the erosion of the acid media such as H2S, and the this seriously threatens the safe operation and production of the oil and gas wells. To deal with this problem, a ZnFe...
Effect on Water-Resistant Cement Slurries by Materials Non-Dispersible in Water
JIAO Yajun, ZHANG Hua, GUO Xueli, ZHANG Xiaobing, LIU Bo, DENG Tian’an, ZHANG Shunping
2024, 41(3): 383-389. doi: 10.12358/j.issn.1001-5620.2024.03.014
Abstract(213) HTML (94) PDF (2522KB)(55)
Abstract:
In the Chuanyu area, the shale gas producing Jialingjiang Formation is developed with plenty of fractures and formation water. This leads to a mud loss problem which greatly prolongs the drilling time and hinders the safe and efficient development of the shale gas. Cement slurries non-dispersible in...
Dual Prevention of Severe Losses of Cement Slurries in Cementing Long Open Holes
GAO Yuan
2024, 41(3): 390-395. doi: 10.12358/j.issn.1001-5620.2024.03.015
Abstract(269) HTML (92) PDF (2355KB)(57)
Abstract:
Aiming at the cementing problem of long open hole malignant leakage wells, the thermo-sensitive shape memory loss prevention spacer and foam leakage prevention cement slurry were developed, which synergistically reduce the cementing loss risk of long open hole malignant leakage loss wells. The therm...
FRACTUREING FLUID & ACIDIZING FLUID
In-Situ Displacement of Crude Oil by Fracturing Fluid in Chang-6 Reservoir in Xingzichuan
BAI Hao, ZHOU Fujian, WU Junlin, DING Zhiyuan, YANG SaSa, SHENG Lianqi, YAO Erdong
2024, 41(3): 396-404. doi: 10.12358/j.issn.1001-5620.2024.03.016
Abstract(310) HTML (118) PDF (3408KB)(43)
Abstract:
The Chang-6 reservoir in the Yanchang formation in Xingzichuan area is characteristic of low oil saturation, strong oil wetting and strong heterogeneity (permeability = 0.10 – 1.0 mD). In fracturing operations in this area, it was found that the conventional fracturing fluids have weak wettability a...
Preparation and Application of Superhydrophobic Multifunctional Drag Reducing Agents for Slickwater Fracturing Fluids
FENG Qi, JIANG Guancheng, ZHANG Shuo, HUANG Shengming, WANG Quande, WANG Wenzhuo
2024, 41(3): 405-413. doi: 10.12358/j.issn.1001-5620.2024.03.017
Abstract(328) HTML (98) PDF (3156KB)(76)
Abstract:
At present, conventional smooth hydraulic fracturing fluid systems generally have various functions such as drag reduction, sand carrying, salt resistance, and temperature resistance, but none of them have considered achieving reservoir protection by changing the surface wettability of the reservoir...
Study on Evaluating Effects of Biocides in Fracturing Fluids with Optical Fiber Tweezer Method
WU Zhaoliang
2024, 41(3): 414-418. doi: 10.12358/j.issn.1001-5620.2024.03.018
Abstract(198) HTML (88) PDF (3167KB)(38)
Abstract:
In summer fracturing operation, microorganisms such as bacteria can cause the guar gum fracturing fluids to spoil and lose their effectiveness. Bactericides have thus to be used in the fracturing fluids to kill the bacteria. Presently there is no technical means of evaluating the performance of the ...

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