Utilising Managed Pressure Drilling to Drill Shale Gas Horizontal Well in Fuling Shale Gas Field

2016 ◽  
Author(s):  
G. Wang ◽  
H. Zhou ◽  
H. Fan ◽  
N. Si ◽  
J. Liu ◽  
...  
Keyword(s):  
Shale Gas ◽  
Horizontal Well ◽  
Gas Field ◽  
Managed Pressure Drilling

Seismic geo-steering technology of horizontal well and its application in Fuling shale gas field

2017 ◽  
Author(s):  
Peng Liao* ◽  
Shugui Zha ◽  
Shuishan Zhang ◽  
Qijun Liu ◽  
Ping Deng
Keyword(s):  
Shale Gas ◽  
Horizontal Well ◽  
Gas Field

scholarly journals Fracturing Parameters Optimizing Simulation of Horizontal Well In WeiYuan Shale Gasfield

2021 ◽  
Vol 2076 (1) ◽  
pp. 012001
Author(s):  
Mingguang Che ◽  
Meng Wang ◽  
Bo Zeng ◽  
Yi Song ◽  
Wei Jiang ◽  
...  
Keyword(s):  
Shale Gas ◽  
Horizontal Well ◽  
Horizontal Wells ◽  
Fluid Volume ◽  
Parameters Optimization ◽  
Geological Model ◽  
Gas Field ◽  
Number Of Clusters ◽  
Pumping Rate ◽  
Lateral Length

Abstract Multistage fracturing and multi-clusters with long lateral fracturing were applied during developing the WeiYuan shale gas field, and the fracturing parameters were variable obviously for the fracturing lateral, perforating clusters, pumping rate, fracturing fluid volume and proppant quality. In this paper, the 3D geological model of a WeiYuan shale gas pad was used to simulate and optimize the fracturing parameters of the shale gas horizontal wells. The simulating results show that there is a reasonable matching relationship between different fracturing lateral length and the perforating clusters, and there is an optimal fluid volume and proppant quality. As the length of the fracturing lateral and the number of clusters increase, the spacing of horizontal wells need to be reduced reasonably. With the purpose of fracturing parameters optimization for WeiYuan shale gas horizontal wells, it is recommended to increase the number of perforation clusters, increase the treating rate, and use the reasonable fluid volume and proppant quality for different fracturing lateral. The research results of this paper have guiding significance for the optimization and treatment of fracturing shale gas horizontal well.

A Comprehensive Model for Gas Influx Detection and Control While Managed Pressure Drilling and Its Application

2021 ◽  
Author(s):  
Hongkang Fan ◽  
Shanhong Jiang ◽  
XianHai Zhou ◽  
Guo Wang ◽  
Haobo Zhou ◽  
...  
Keyword(s):  
Shale Gas ◽  
Initial Response ◽  
Pressure Variation ◽  
Control Technique ◽  
Gas Field ◽  
Gas Drilling ◽  
Gas Kick ◽  
Managed Pressure Drilling ◽  
Valve Opening ◽  
And Control

Abstract The equipment commonly used in managed pressure drilling (MPD) allows alternative responses to kicks that do not need to stop the pump or shut in the well. The pivotal issue of kick control for MPD is the early gas influx detection and the optimal initial response when the kick was detected during drilling. The careful research on gas influx detection and the corresponding control method is very important. Firstly, the valve opening, bottom hole and well head pressure variation characteristics were analyzed based on the real-time measured data, and then the valve opening and pressure signature of gas influx for different MPD modes (CBHP, CWHP, MFC) was obtained based on the theoretical and model analysis, in which the pressure variation caused by the tripping, ROP and flow rate variation were taken into account, through which the gas kick can accurately detected as soon as quickly. Secondly, the influence factors for initial response selection of kick control was analyzed, and then the comprehensive optimization schedule of response for kick control was established, in which several factors were took into account, such as formation characteristics, drilling conditions, influx intensity and so on, through which the best mode for kick control can be obtained easily. Moreover, integrated software that combined kick detection and gas kick control simulation was developed based on which the best pressure control procedure and kick initial response can be obtained easily. The gas influx detection and control technique has been applied in Fuling shale gas field of SINOPEC, which is the first large-scale commercial development shale gas field of China. The results show that we can make precisely gas detection based on the new early gas influx detection method and the kick can also be control very well based on the optimization method. Based on the proposed method for kick detection and control, the NPT have been reduced more than 60%. This study will presented a novel gas kick detection theoretical model for all common MPD modes, and the gas influx control optimal procedure. Through the field application in shale gas drilling, the results show that the NPT has been reduced obviously, and the optimal kick control was designed has successfully prevented the serious kick and reduced the drilling cost.

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.

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