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Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Deep-water heavy oil is an important marine petroleum resource. Due to the low temperature in deep water, the mobility of the heavy oil is low, leading to difficult development. Based on the development situation of the heavy oil industry in China and the experience of the successful cases of deep-water heavy oil development overseas, the paper summarizes the main developing technology and method of the deep-water heavy oil development in aspects of key facility, artificial lift equipment, drilling & completion technology and flow assurance method, and analyses the experience of Petrobras in developing Campos Basin deep-water heavy oil field. The conclusion is that by using reasonable secondary recovery, artificial lift and flow assurance technology, the deep-water heavy oil projects can be beneficial and promising. The paper gives some exploratory viewpoint and suggestions, which is of important value to exploit the deep-water heavy oil development technology. [ABSTRACT FROM AUTHOR]

According to the analysis on the geology characteristics and drilling history of Beibuwan Basin in the west of South China Sea, the paper analyzed the reasons for poor dillability, and summarized the exploration and practice in ROP acceleration technology in the west of South China Sea. Combined with the experiences acquired from several newly drilled wells in Beibuwan Basin, a ROP acceleration strategy which is suitable for the poor drillability formation in this basin was introduced, meanwhile a new type of bit was developed to deal with these formations, therefore a set of ROP acceleration technology for Beibuwan poor drllability formation was formed. Field experience witnessed the significant improvement of ROP in poor drillability formation in Beibuwan Basin. This new technology has played a striking role in drilling cost control in the west of South China Sea, and can be a good reference for field drilling job on similar type of formations. [ABSTRACT FROM AUTHOR]

The depleted gas storage is characterized by low formation pressure, long operational cycle and large quantity of injection and production, which requires higher quality of drilling and cementing. Based on the geologic feature and design requirement of gas storage Well Wen23, and taking the reservoir protection, cementing quality and salt formation interval into account, the paper made the optimization of well profile, casing string, cementing, drilling fluid system and reservoir protection, and formed the drilling engineering design of Well Wen23. It provided a technical reference for drilling design of depleted gas storage of low pressure and low permeability reservoir in China. [ABSTRACT FROM AUTHOR]

The ranges of permeability among low permeability, extra-low permeability and ultra-low permeability reservoirs are redefined, and the tight oil reservoir and low permeability reservoir are distinguished. The tight oil formation forming mechanism and development features are discussed, and the difference between Bakken tight oil reservoir and the common low permeability reservoir is pointed out. Also, the paper presents the key technologies and new knowledge of developing tight oil reservoirs in the Bakken play. The new technology and theory of developing Bakken tight oil reservoirs can provide low permeability reservoir development in China with a certain referential value. [ABSTRACT FROM AUTHOR]

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The dynamic analysis and fault diagnosis of ESP well are critical section of ESP wells' management. The results of conventional working condition analysis with current card, production performance and well history are not accurate. By providing the ESP with a downhole tractometer, real-time recording of unit operation parameters is realized, which provides more and visual information for dynamic analysis and fault diagnose, thus comprehensive and correct analysis of working condition can be performed to find out fault causes and further to tap oil well potential. This paper summarizes the types of ESP fault in a simple way by in-depth analyzing and plotting the ESP tractometer data. Field application shows that the above analysis method is a preferred way and worth popularizing. [ABSTRACT FROM AUTHOR]

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Changshaling Structural Belt is an important oil and gas exploration area in Jiudong Basin, and abnormal high pressure is universal in the zone. The paper proposes a new three-dimensional (3D)pore pressure calculation method based on single point hypothesis, which can use 3D interval velocity data to estimate 3D pore pressure. The novel method was applied to the 3D pore pressure calculation and analysis of Changshaling Structural Belt. Firstly, the pore pressure profile and model parameters of several key exploratory wells were established. Secondly, the 3D interval velocity data of the structural belt was obtained by seismic inversion. Further, the computer program was developed, and it was used to calculate the 3D pore pressure of Changshaling Structural Belt. Finally, with the 3D pressure results of Changshaling Structural Belt, the pore pressure distribution of this zone was systematically analyzed, with positive results. [ABSTRACT FROM AUTHOR]

Honghe oilfield has the characteristics of low porosity, ultra-low permeability and natural fracture growth. Open-hole packer staged fracturing technology was mainly conducted in the early development stage, which is subjected to complex process of drilling sweep ball seat and difficult construction of secondary reformation. Through salvage sliding sleeve fracturing process test, the shaft diameter can be realized in whole wellbore, which provides technical support for the secondary transformation and interference factors analysis. The tube-string structure, technique characteristics and operation process of salvage tools were introduced in this paper, and pilot test was carried out in Well HH37P32. Field application shows that this fracturing technology can effectively implement stimulation for horizontal wells, and improve the fracturing effect of low permeability reservoir. [ABSTRACT FROM AUTHOR]

Such as side attrition of pumping rods and tubes problems often encountered when the conventional oil pumping unit is used for inclined wells production. To solve the technical problems, a new liquid power assisted rodless oil pumping system is developed based on hydraulic principle. The novel system can completely solve the rod-tube side attrition problem, and is especially applicable used in inclined wells. This system includes ground hydraulic driving system, power transmission system and down-hole hydraulic oil pumping system. Its workflow is introduced in this paper. In-site test has smoothly run over 18 months which indicates the system can fully meet the oil field production requirements. [ABSTRACT FROM AUTHOR]

The low permeability difficult-to-produce reserves and unconventional oil and gas reserve in Dagang oilfield is rich, and horizontal wells with staged fracturing completion technology is probably the mainly mean to economically and efficiently develop these reserves. In order to analyze the applicability of staged fracturing in horizontal well completion technology in Dagang oilfield, application trials of openhole packer staged fracturing completion, casing cementing sliding sleeve staged fracturing completion technology and hydraulic jet perforation completion with immovable string were conducted to form a new well completion technique, which take the casing cementing and sliding sleeve subsection fracturing as the main technology. The newly process has the advantages of integrated pipe column for well cementing, completion and staged fracturing, full size and fracturing operation continuous, which can shorten the working period and sliding sleeve can be closed for water blocking point in late water-producing layer. Meantime, there also presents some problems with this technique such as wellbore production plug caused by ball dropping, poor cementing quality because of rubber plug no pressure and adjacent wells connection. Aiming at the existing problems, analysis and evaluation were conducted, and solutions were proposed in this paper. Field application primarily realized normal production of oil wells, which provides foundation for the further scale application of the similar staged fracturing completion technology. [ABSTRACT FROM AUTHOR]

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Micro Flux Control (MFC) drilling technology has advantages of detecting early small overflow and leakage and controlling the bottom hole pressure precisely. The core component in this technology is ground automatic throttle manifold, whose agility and accuracy is directly related to whether pressure control can be achieved and its accuracy. This technology has been widely used by several foreign companies, who do not sell relevant equipment and tools, but only provide technical service with extremely high price. To break the monopoly of foreign technology and to reduce drilling cost as well as to develop MFC drilling technology with independent intellectual property right, a set of ground automatic throttle manifold was designed by comprehensively considering the relationship between well bore pressure distributions and throttling flow capacity and based on fluid dynamics and automatic control theory, The field test confirmed that this set of equipment has an excellent function of automatic throttle control. The MFC of well bore can be achieved in 30 s and the pressure error is less than 0.1 MPa. Design and successful field application of this throttle manifold paved the way for the promoting of MFC drilling technology in China and equipment localization. [ABSTRACT FROM AUTHOR]