Wells – Processes – With indicating – testing – measuring or locating
Patent
1987-12-21
1988-12-27
Novosad, Stephen J.
Wells
Processes
With indicating, testing, measuring or locating
116308, E21B 4326, E21B 4706
Patent
active
047934131
ABSTRACT:
Fluid is injected into a wellbore at a first rate which is low enough to maintain formation pressure beneath formation parting pressure. Thereafter, the rate of fluid injection is increased to a second rate which is high enough to exceed formation parting pressure. The time and pressure data obtained during the first and second periods are normalized, plots thereof are superposed and the formation parting pressure is determined by noting the point at which the plots deviate from one another.
REFERENCES:
patent: 4372380 (1983-02-01), Smith et al.
patent: 4393933 (1983-07-01), Nolte et al.
patent: 4434848 (1984-03-01), Smith
patent: 4442895 (1984-04-01), Lagus et al.
patent: 4453595 (1984-06-01), Lagus et al.
patent: 4577689 (1986-03-01), Dotson
Agarwal, "A New Method to Account for Producing Time Effects When Drawdown Type Curves Are Used to Analyze pressure Buildup and other Test Data," SPE paper No. 9289, Society of Petroleum Engineers of AIME, Sep. 1980, Dallas TX, 20 pages.
Singh, et al., "Systematic Design and Analysis of Step-Rate Tests to Determine Parting Pressure," SPE paper No. 16798, Society of Petroleum Engineers of AIME, Sep. 27-30, 1987, Dallas, Texas, pp. 491-503.
Agarwal Ram G.
Miller Charles W.
Singh Pramod K
Amoco Corporation
Brown Scott H.
Hook F. E.
Novosad Stephen J.
LandOfFree
Method for determining formation parting pressure does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for determining formation parting pressure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for determining formation parting pressure will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-862649