Research and Testing of the Integrated String for Cementing and Controlling Sand in a Medium-Short Radius Wellbore

HAO Zhouzheng; ZUO Kai; LIU Yuming; LI Ning; WEI Aishuan; WANG Mingjie

doi:10.11911/syztjs.2019012

Volume 47 Issue 2

Apr. 2019

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Petroleum Drilling Techniques > 2019 > 47(2): 99-104. > DOI: 10.11911/syztjs.2019012

HAO Zhouzheng, ZUO Kai, LIU Yuming, LI Ning, WEI Aishuan, WANG Mingjie. Research and Testing of the Integrated String for Cementing and Controlling Sand in a Medium-Short Radius Wellbore[J]. Petroleum Drilling Techniques, 2019, 47(2): 99-104. DOI: 10.11911/syztjs.2019012

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Research and Testing of the Integrated String for Cementing and Controlling Sand in a Medium-Short Radius Wellbore

CNOOC EnerTech-Drilling & Production Co., Tianjin, 300452, China

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Received Date: May 22, 2018
Revised Date: December 03, 2018
Available Online: January 02, 2019

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Abstract

Abstract

In order to solve the problem that there is no applicable integrated cementing/sand control pipe string for a medium-short radius open hole in Bohai Oilfield, a set of such pipe string suitable for medium-short radius wellbore was designed based on development and technical status of Bohai Oilfield, which analyzed its safety and passability. The results suggested that this pipe string would not spirally bend in the process of running in hole, the safety could be acceptable, and it could smoothly pass through the wellbore with a maximum dogleg of 19.28°/30 m and curvature radius of 89.20 m. Both the results of testing well and field test showed that the safety and passability of the integrated cementing/sand control pipe string for the medium-short radius open hole met the requirement of design. They also demonstrated that the cementing of the upper hole section and the selective cementing/gravel packing sand control of lower reservoir section can be achieved in one run, which can fulfill the integrated cementing/sand control for the medium-short radius open hole in Bohai Oilfield effectively.
- medium- short radius,
- cementing,
- sand control,
- field testing,
- Bohai Oilfield,
- Well CFD12-2B18H1

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