2022 Vol. 39, No. 5

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DRILLING FLUID
Optimization of Hydrate Inhibition Performance of Deep Water Shallow Drilling Fluid
REN Guanlong, MENG Wenbo, HE Yufa, HUANG Liang, WANG Jintang
2022, 39(5): 529-537. doi: 10.12358/j.issn.1001-5620.2022.05.001
Abstract(1002) HTML (428) PDF (3280KB)(92) [Cited by] (9)
Abstract:
The deep water and shallow geological conditions are complex, the soil is loose, the operating pressure window is narrow, the submarine mud line temperature is low, and hydrates are easy to form in the well bore. The drilling fluid is faced with problems such as well bore stability, difficulty in re...
Development and Performance Evaluation of High Temperature Salt Resistant Drilling Lubricant
WANG Zonglun, SUN Jinsheng, LIU Jingping, LYU Kaihe, SHAO Zihua, ZHANG Xianfa
2022, 39(5): 538-544. doi: 10.12358/j.issn.1001-5620.2022.05.002
Abstract(975) HTML (369) PDF (2741KB)(131) [Cited by] (13)
Abstract:
Using boric acid, polyols and long-chain fatty acids, a high temperature salt resistant drilling lubricant SOB has been developed to deal with high torque high friction encountered in deep and ultra-deep well drilling. SOB has good lubricity at high temperatures and high salinities. A 5% base mud tr...
Characteristic Study of Thermosensitive Shape Memory Lost Circulation Materials
FENG Jie, ZANG Xiaoyu, QIU Zhengsong, BAO Dan, ZHENG Lihui
2022, 39(5): 545-549. doi: 10.12358/j.issn.1001-5620.2022.05.003
Abstract(904) HTML (361) PDF (2294KB)(97) [Cited by] (9)
Abstract:
In order to improve the self-adaptability and plugging efficiency of bridging materials and increase the success rate of plugging fractured formation, this paper develops a kind of thermosensitive shape memory lost circulation materials. By crushing and granulating, shape memory particles with diffe...
Development of Paraffin Microemulsion and Its Application in Water-Based Drilling Fluids
SONG Hanxuan, YE Yan, ZHOU Zhishi, ZHANG Hanyu, ZHANG Qingwen, ZHOU Fujian, GUO Jixiang
2022, 39(5): 550-557. doi: 10.12358/j.issn.1001-5620.2022.05.004
Abstract(1006) HTML (369) PDF (3456KB)(85) [Cited by] (3)
Abstract:
Analyses of seepage losses through micron and nanometer fractures and pores encountered in ultra-deep drilling in the southwest Tarim Basin show that the plugging agents in the potassium based polymer sulfonate drilling fluid are unable to effectively plug these fractures and pores. To improve the p...
A Synthetic Based Drilling Fluid with Strong Plugging Capacity for Block Wushi17-2
MA Lei, YUAN Xueqiang, ZHANG Wandong, CAO Feng, DENG Wenbiao, ZHANG Xuefei, YANG Lili
2022, 39(5): 558-564. doi: 10.12358/j.issn.1001-5620.2022.05.005
Abstract(817) HTML (330) PDF (2635KB)(75) [Cited by] (6)
Abstract:
The block Wushi17-2 is an important part of the Nanhai West Oilfield and has significant exploration and development prospects. However, there are severe potential downhole problems encountered during drilling operations, such as borehole wall instability, mud losses and formation damage, has impose...
Development and Application of a Protective Agent for Tight Oil and Gas Reservoirs
LI Xintong, ZHENG Wenwu, LIU Fu, SUN Zhongwei, WANG Song
2022, 39(5): 565-572. doi: 10.12358/j.issn.1001-5620.2022.05.006
Abstract(841) HTML (323) PDF (2689KB)(66) [Cited by] (2)
Abstract:
In developing the Benbutu oilfield in Xinjiang, hole size irregularities were often encountered in the water- and hydrocarbon-containing sections, and these greatly affect the quality of the cementing job and damage the reservoirs. To protect the oil and gas reservoirs in the Benbutu oilfield, an el...
Borehole Wall Strengthening with Micron and Nano Materials in “Dabadong” Area of Changning
SHE Chaoyi, LI Bo, DAI Feng, XIAO Xinyu, WEN Qianbin
2022, 39(5): 573-578. doi: 10.12358/j.issn.1001-5620.2022.05.007
Abstract(783) HTML (352) PDF (2582KB)(76) [Cited by] (5)
Abstract:
The Longmaxi formation in Changning is highly developed with microfractures because of the tectonic action in the “Dabadong” area and the formation rock components. The sizes of the primary pores are distributed in a range of 0.05-2 μm. The formation stability is very poor and overpull and resistanc...
Study on Mechanisms of a Highly Adsorptive Polyol Ester Bonded Lubricant for Water Based Drilling Fluids
TAO Huaizhi, MING Xiansen, MA Guangchang, YANG Xukun, JIANG Guancheng
2022, 39(5): 579-586. doi: 10.12358/j.issn.1001-5620.2022.05.008
Abstract(841) HTML (325) PDF (5292KB)(87) [Cited by] (13)
Abstract:
Common lubricants used in water based drilling fluids have weak adsorption on the friction interfaces of metals, and therefore are difficult to form dense and shear-resistant lubricating films thereon, which leads to high friction and torque during drilling. High friction and torque generally result...
The Synthesis and Evaluation of a Pentaerythritol-Based Hyperbranched Polymer Filter Loss Reducer
SONG Yongtao, ZHOU Feng, YU Weichu, ZHANG Ying, SHU Wenming
2022, 39(5): 587-595. doi: 10.12358/j.issn.1001-5620.2022.05.009
Abstract(892) HTML (330) PDF (2926KB)(90) [Cited by] (4)
Abstract:
Filter loss reducers presently in use have some deficiencies such as great negative impact on mud rheology, poor high temperature resistance and poor salt contamination resistance etc. To overcome these deficiencies, a pentaerythritol-based hyperbranched polymer filter loss reducer PPAAN-1 was devel...
Friction reduction of oleamide lubricants on iron surface
ZHANG Shuncong, DAI Yao, XU Hao, WANG Jiqian, LU Fuwei, LIU Guiying
2022, 39(5): 596-600. doi: 10.12358/j.issn.1001-5620.2022.05.010
Abstract(931) HTML (352) PDF (4773KB)(73) [Cited by] (4)
Abstract:
The adsorption and lubrication properties of four surfactants on the iron surface based on molecular simulation was investigated. Surfactants include oleamide, oleic acid diethylenetriamine, oleic acid triethylenetetramine, and oleic acid tetraethylenepentamine. Results of adsorption simulation show...
CEMENTING FLUID
High Temperature High Density Cement Slurry with Corrosion Inhibition Property
CHEN Rongyao, SONG Jianjian, WU Zhongtao, SHI Ligang, ZHAO Jun, WANG Xuechun, LIU Shikang
2022, 39(5): 601-607. doi: 10.12358/j.issn.1001-5620.2022.05.011
Abstract(987) HTML (340) PDF (2701KB)(93) [Cited by] (13)
Abstract:
CO2 gas in the deeper part of a high temperature high pressure well generally causes corrosion to the set cement and damages the sealing integrity of the cement sheath. To develop a high temperature high density cement slurry with high corrosion inhibitive capacity, studies were conducted on the key...
Well Cementing with Low Friction Pressure Resistant Leaking Preventive Low Density Cement Slurry
WANG Ding, WAN Xiangchen, YANG Chen
2022, 39(5): 608-614. doi: 10.12358/j.issn.1001-5620.2022.05.012
Abstract(775) HTML (351) PDF (2249KB)(63) [Cited by] (12)
Abstract:
In the Sulige gas field in Changqing Oilfield, the Liujiagou formation is a low pressure formation, the low density cement slurries presently used in this area have poor pressure resistance; the cement slurries under high pressures will have their density increased and rheology deteriorated. In fiel...
Development of New Oil Well Cement Retarder
LIU Jian, ZHANG Zeyu, WEI Haoguang, WANG Mu, ZHOU Shiming
2022, 39(5): 615-621. doi: 10.12358/j.issn.1001-5620.2022.05.013
Abstract(831) HTML (298) PDF (2781KB)(57) [Cited by] (5)
Abstract:
In cementing a long open section well with big temperature differences, overtreatment or inadequate treatment of the cement slurry with retarders at high temperature high pressure will cause the thickening time of the cement slurry to shorten or change irregularly. After the cementing job, the retar...
A Medium-Low Temperature Epoxy Based Workover Fluid
LING Yong, MA Ruran, LYU Ze, LIU Shi, LIU Wenming, YU Jingyu, GUO Jintang
2022, 39(5): 622-628. doi: 10.12358/j.issn.1001-5620.2022.05.014
Abstract(787) HTML (317) PDF (2719KB)(52) [Cited by] (2)
Abstract:
Presently the consumption of oil and natural gas has increased sharply, while the development of conventional oil and gas is reducing, this makes the development of unconventional oil and gas, such as oil and gas from deep wells, offshore wells and shale gas wells more and more imminent. In the deve...
FRACTUREING FLUID & ACIDIZING FLUID
Proppant Migration in Fracture Fractured with Supercritical CO2 Fracturing Fluid
GUO Xing, SUN Xiao, MU Jingfu, QIAO Hongjun, LUO Pan, LI Heng
2022, 39(5): 629-637. doi: 10.12358/j.issn.1001-5620.2022.05.015
Abstract(852) HTML (298) PDF (2916KB)(57) [Cited by] (4)
Abstract:
In order to optimize the supercritical CO2 fracturing technology and construction parameters, considering the interaction between proppant particles in supercritical CO2 Fracturing Fluid, the multiphase particle grid method in Euler Lagrange method is used to establish the mathematical model of CO2 ...
Study on Viscoelastic Sand-carrying Mechanism and Imbibition Performance of Nano Variable-viscosity Slickwater
LIU Hanbin, BAI Hao, TANG Meirong, LYU Baoqiang, HAN Chuanghui, WANG Wenzhong, ZHOU Fujian, YAO Erdong
2022, 39(5): 638-645. doi: 10.12358/j.issn.1001-5620.2022.05.016
Abstract(802) HTML (356) PDF (2754KB)(59) [Cited by] (4)
Abstract:
As a new fracturing fluid system with good sand-carrying performance and imbibition displacement, nano variable-viscosity slickwater has been successfully applied to shale oil volume fracturing in Changqing Oilfield. The field test results show that it has good sand-carrying performance and stimulat...
Method of Predicting Flow Conductivity of Long-Term Acid-Etched Fractures in Carbonate Reservoirs in Shunbei Oilfield
LI Chunyue, LI Qin, LI Deming, WU Xia
2022, 39(5): 646-653. doi: 10.12358/j.issn.1001-5620.2022.05.017
Abstract(1189) HTML (305) PDF (3198KB)(32) [Cited by] (6)
Abstract:
Acid fracturing has been performed with difficulties in the high temperature high pressure carbonate rock hydrocarbon reservoirs in the Shunbei block. The main problem is the dramatic reduction of the effect of acid fracturing resulted from the losses of the flow conductivity of the acid-etched frac...
COMPLETION FLUID
Study on Workover Fluid Suitable for High Temperature, High Pressure and Low Permeability Reservoirs in Offshore Gas Field
LIANG Yukai, LUO Gang, ZHOU Yuxia, SONG Jifeng, ZHENG Huaan, REN Kunfeng, LIN Kexiong
2022, 39(5): 654-660. doi: 10.12358/j.issn.1001-5620.2022.05.018
Abstract(648) HTML (305) PDF (2327KB)(38) [Cited by] (3)
Abstract:
In view of the problems that workover fluid is easy to cause pollution damage to reservoir and serious corrosion to downhole pipe string during workover operation in a high-temperature, high-pressure and low-permeability gas field on the sea, the laboratory is based on soluble composite salt weighti...

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