Application of Cluster Well Drilling Technology in Sulige Gas Field

2012 ◽  
Author(s):  
Zongqiang Zhou ◽  
Longlian Cui ◽  
Jianmin Li ◽  
Fucheng Zhang ◽  
Xuesheng Wu ◽  
...  
Keyword(s):  
Gas Field ◽  
Well Drilling ◽  
Drilling Technology

Application and Cognition of Unconventional Horizontal Well Drilling Technology in Shengli Oilfield

2013 ◽  
Vol 318 ◽  
pp. 513-518
Author(s):  
Hong Bo Niu ◽  
Hong Shan Zhao ◽  
Ji Fei Cao
Keyword(s):  
Drilling Fluid ◽  
Gas Field ◽  
Horizontal Section ◽  
Well Drilling ◽  
Drilling Equipment ◽  
Shengli Oilfield ◽  
Well Design ◽  
Drilling Technology ◽  
Catenary Curve ◽  
Oil Gas

Long Horizontal Section Well has been an important way to explore deficient oil/gas field. Relative drilling technology has developed rapidly in recent years in China. This article puts focus on the methodology of well plan, trajectory control and matched tools and application situation of drilling fluid and drilling equipment for long horizontal section well. Based on the analysis of drilling and completion technical difficulties, suitability of some well design methods such as catenary curve used to decline friction and torque have been discussed, and even more practical means proven in many designs have been recommended. After introducing the drilling capability of the long horizontal-section well, the article indicated some special characteristic of the horizontal section wells and difference from ERD wells. Consequently, some advice is given on the definition and development of the drilling technology of long horizontal section wells.

scholarly journals Oil and gas well drilling technology based on the system approaches and the results of application

2021 ◽  
Vol 1064 (1) ◽  
pp. 012059
Author(s):  
R R Gazizov ◽  
A P Chizhov ◽  
V E Andreev ◽  
A V Chibisov ◽  
V V Mukhametshin ◽  
...  
Keyword(s):  
Oil And Gas ◽  
Gas Well ◽  
Well Drilling ◽  
Drilling Technology ◽  
System Approaches

Horizontal Well Penetration Rate Increasing Technology in Sulige Gas Field

2015 ◽  
Vol 733 ◽  
pp. 17-22
Author(s):  
Yang Liu ◽  
Zhuo Pu He ◽  
Qi Ma ◽  
Yu Hang Yu
Keyword(s):  
Horizontal Well ◽  
Economies Of Scale ◽  
Reference Value ◽  
Drilling Speed ◽  
Underground Engineering ◽  
Gas Field ◽  
Horizontal Section ◽  
Well Drilling ◽  
Drilling Parameters ◽  
Key Techniques

In order to improve the drilling speed, lower the costs of development and solve the challenge of economies of scale development in sulige gas field, the key techniques research on long horizontal section of horizontal well drilling speed are carried out. Through analyzing the well drilling and geological data in study area, and supplemented by the feedback of measured bottom hole parameters provided by underground engineering parameters measuring instrument, the key factors restricting the drilling speed are found out and finally developed a series of optimum fast drilling technologies of horizontal wells, including exploitation geology engineering technique, strengthen the control of wellbore trajectory, optimize the design of the drill bit and BHA and intensify the drilling parameters. These technologies have a high reference value to improve the ROP of horizontal well in sulige gas field.

Study on a Data Acquisition System for Logging while Drilling

2012 ◽  
Vol 198-199 ◽  
pp. 1246-1249
Author(s):  
Sheng Hu Liu ◽  
Ya Min Xing
Keyword(s):  
Data Acquisition ◽  
High Speed ◽  
Processing System ◽  
Digital Design ◽  
System Structure ◽  
Well Drilling ◽  
Drilling Technology ◽  
Phase Sensitive ◽  
Logging While Drilling ◽  
Data Acquisition And Processing

This electronic Logging while drilling (LWD) is a new sort of well drilling technology developed in recent years. As to the traditional cable borehole survey, the LWD method has many advantages because of its higher accuracy, higher geologic strata resolution capacity, much less time and cost. To meet the current logging technology needs, A data acquisition and processing system for logging while drilling is designed．It minutely introduces the collection system structure, acquisition Program, the digital design of LWD and discusses the design and the implementation of each functional module．The system which designed on the basis of the high precise DSP and FPGA implements signal pretreatment, high speed A/D control and digitalization of the phase sensitive demodulation etc, optimizes the acquisition and processing system and supplies a new way for the development of logging while drilling．Experimental results show that system performance has attained the design requirement.

MPD Application With CBHP Technique in Horizontal Well Drilling for the Development of an HPHT and Sour-Environment Gas Field: A Case History

2011 ◽  
Author(s):  
G. Purwagautama ◽  
Idi Yusup Afandi ◽  
Syahriza Ghany Rachman ◽  
Arga Purwanto ◽  
David Radley
Keyword(s):  
Case History ◽  
Horizontal Well ◽  
Gas Field ◽  
Well Drilling

Wellbore Stability in Layered Rocks: A Comparative Study of Strength Criteria

2020 ◽  
Vol 142 (6) ◽  
Author(s):  
Xiangchao Shi ◽  
Xiao Zhuo ◽  
Yue Xiao ◽  
Boyun Guo ◽  
Cheng Zhu ◽  
...  
Keyword(s):  
Stability Analysis ◽  
Good Choice ◽  
Wellbore Stability ◽  
Gas Field ◽  
Well Drilling ◽  
Shale Formations ◽  
Single Plane ◽  
Collapse Pressure ◽  
Bedding Planes ◽  
Laminated Structures

Abstract Wellbore instability is a critical issue restricting efficient well drilling and successful development of oil and gas field. Most instability problems originate from shale formations because of their distinct laminated structures that cause significant anisotropy and moderate to high clay contents that are prone to shrinkage and swelling. To account for these influences on the mechanical responses of shales, this study aims to identify an appropriate strength criterion for stability analyses. Two anisotropic criteria including single plane of weakness and the modified Hoek–Brown criteria were compared to evaluate their suitability in characterizing the anisotropic strength of layered rocks including shale, schist, and slate under different confining pressures. Comparative case studies indicated that the single plane of weakness criterion overestimates the strength of layered rocks at some orientation angles. The modified Hoek–Brown criterion can fit well with the experimental data of layered rocks. Moreover, wellbore stability analysis models for shale gas wells were built, respectively, for each criterion and applied to in situ scenarios. The single plane of weakness and modified Hoek–Brown criteria provide similar results of collapse pressure, and the shale failure is mainly determined by the bedding plane. This further validates that the modified Hoek–Brown criterion is a good choice for wellbore stability analysis in shale formations with bedding planes. This study shows the potential of using the modified Hoek–Brown criterion to enhance the safety and efficiency of well drilling and operation in shale formations.

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