A new algorithm for computation of horizontal-well pressure in laplace domain

被引：1

作者：

Wu M. ^{[1
,2
]}

Luo W. ^{[1
,2
]}

Wang X. ^{[1
,2
]}

机构：

[1] School of Energy Resources, China University of Geosciences, Beijing

[2] Beijng Key Laboratory of Unconventional Natural Gas Geological Evaluation and Development Engineering, China University of Geosciences, Beijing

来源：

Advances in Geo-Energy Research | 2018年 / 2卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Computation algorithm; Horizontal well with pressure drop; Laplace domain; Varying conductivity;

D O I：

10.26804/ager.2018.04.04

中图分类号：

学科分类号：

摘要：

The effect of wellbore pressure drop on horizontal well pressure response is relatively important when flow velocity is high or the surface of horizontal wellbore is rough. The objective of this study is to develop a stable and robust algorithm in Laplace domain to analyze horizontal-well pressure with pressure drop along the wellbore. Based on the novel definitions of horizontal well permeability and conductivity, the equation of fluid flow along a horizontal wellbore with pressure drop has the same form as that of fluid flow in a varying-conductivity fracture. A new dimension transformation has been used to change the varying-conductivity model into a constant-conductivity model, and then an iterative procedure has been introduced to obtain the pressure. This algorithm is developed in Laplace domain and eliminates the need for computations in the time domain. Besides, the skin effect and wellbore storage is easily to be taken into consideration. © The Author(s).

引用

页码：393 / 403

页数：10

共 36 条

[1]

Abbasy I., Ritchie B., Pitts M.J., Et al., Challenges in completing long horizontal wells selectively, SPE Asia Pacific oil & gas conference and exhibition in Perth, (2008)

[2]

Adesina F.A.S., Churchill A., Olugbenga F., Modeling productivity index for long horizontal well, J. Energy Resour. Technol, 133, 3, (2007)

[3]

Al-Haddad S.M., Crafton J.W., Productivity of horizontal wells, the Rocky Mountain Regional Meeting and Low-Permeability Reservoirs in Denver, (1991)

[4]

Babu D.K., Odeh A.S., Productivity of a horizontal well, SPE Reserv. Eng, 4, 4, pp. 417-421, (1989)

[5]

Britt L.K., Jones J.R., Miller W.K., Defining horizontal well objectives in tight and unconventional gas reservoirs, the Canadian unconventional resources & international petroleum conference in Calgary, (2010)

[6]

Chen Z., Liao X., Zhao X., Et al., A finite horizontal-well-conductivity model for pressure transient analysis in multiple fractured horizontal wells, Proceedings of the SPE Latin American and Caribbean Petroleum Engineering Conference, (2015)

[7]

Cho H., Integrated optimization on a long horizontal well length, SPE Reserv. Eval. Eng, 6, 2, pp. 81-88, (2003)

[8]

Clonts M.D., Ramey H.J., Pressure transient analysis for wells with horizontal drainholes, the SPE California Regional Meeting, (1986)

[9]

Colebrook C.F., Blench T., Chatley H., Et al., Correspon-dence. Turbulent flow in pipes, with particular reference to the transition region between the smooth and Rough pipe Laws. (Includes plates), J. Inst. Civ. Eng, 12, 8, pp. 393-422, (1939)

[10]

Daviau F., Mouronval G., Bourdarot G., Et al., Pressure analysis for horizontal wells, the SPE Annual Technical Conference and Exhibition, (1985)

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