Int. J. of Oil, Gas and Coal Technology   »   2017 Vol.15, No.1

 

 

Title: Enhance horizontal well performance by optimising multistage hydraulic fracture and water flooding

 

Authors: Bin Yuan; Chen Xu; Kai Wang; Wei Zhang; Rouzbeh Ghanbarnezhad Moghanloo; Xiaoguang Sun; Yuan Wang; Tingting Zhou

 

Addresses:
Mewbourne School of Petroleum and Geological Engineering, The University of Oklahoma, Sarkeys Energy Center, 100 E. Boyd, SEC-1210, Norman, Oklahoma, USA
Exploration and Development Research, Institute of Shanghai Offshore Oil and Gas Branch of SINOPEC, China
Mewbourne School of Petroleum and Geological Engineering, The University of Oklahoma, Sarkeys Energy Center, 100 E. Boyd, SEC-1210, Norman, Oklahoma, USA
Petrochina Coalbed Methane Company Limited, 9 Dongzhimen North Street, Dongcheng District, Beijing, 100007, China
Mewbourne School of Petroleum and Geological Engineering, The University of Oklahoma, Sarkeys Energy Center, 100 E. Boyd, SEC-1210, Norman, Oklahoma, USA
Petrochina Coalbed Methane Company Limited, 9 Dongzhimen North Street, Dongcheng District, Beijing, 100007, China
Petrochina Coalbed Methane Company Limited, 9 Dongzhimen North Street, Dongcheng District, Beijing, 100007, China
Petrochina Coalbed Methane Company Limited, 9 Dongzhimen North Street, Dongcheng District, Beijing, 100007, China

 

Abstract: In naturally fractured tight oil reservoirs, the combination of multistage fractured horizontal well and water flooding could enhance production rate and ultimate recovery. This paper introduces the combination of composite double porosity model and local refinement Technology to optimise the performance of multistage fractured horizontal well. In base of the non-uniform distributions of natural fractures, we adopt different shape factors of dual-porosity model to distinguish the stimulated area and unstimulated zone. By comparing with the performance of different SRV shapes, the optimal design of SRV is irregular shape with scattered distribution of fracture length at different locations of wellbore. The optimal size of SRV, cluster spacing, width of SRV are presented. In addition, in seven-spot injection/production well pattern, this paper presents the optimisation of multistage fractured horizontal well orientation with different SRV shapes (single-spindle and double-spindle), and well spacing. [Received: May 18, 2015; Accepted: March 1, 2016]

 

Keywords: naturally fractured tight oil; composite dual porosity model; fractured horizontal well; water flooding; stimulated reservoir volume; well pattern.

 

DOI: 10.1504/IJOGCT.2017.10004482

 

Int. J. of Oil, Gas and Coal Technology, 2017 Vol.15, No.1, pp.25 - 46

 

Available online: 11 Apr 2017

 

 

Editors Full text accessAccess for SubscribersPurchase this articleComment on this article