Measuring and testing – Borehole or drilling – Downhole test
Patent
1982-12-17
1984-12-11
Birmiel, Howard A.
Measuring and testing
Borehole or drilling
Downhole test
74 41, 166 53, 417 12, F04B 4900, E21B 4400
Patent
active
044870612
ABSTRACT:
Methods and apparatus for detecting fluid pound in a sucker-rod oil well, using maximum and minimum values of sucker-rod position and of sucker-rod load to calculate a reference position and a selected load value. The apparatus automatically calculates the reference position and the selected load value according to the characteristics of the well and of the well pumping equipment. When the sucker-rod moves downward to the reference position, the actual load value is checked against the selected value and in one embodiment of the invention a warning signal develops when the amount of the load exceeds the previously selected load quantity. In another embodiment a warning signal develops when the rate of change of the load is at a maximum below the reference position. In a third embodiment a warning signal develops when a minimum rate of change of the load occurs below the reference position.
REFERENCES:
patent: 2577479 (1951-12-01), Owen et al.
patent: 3306210 (1967-02-01), Boyd et al.
patent: 3817094 (1974-06-01), Montgomery et al.
patent: 3824851 (1974-07-01), Hagar et al.
patent: 3838597 (1974-10-01), Montgomery et al.
patent: 3851995 (1974-12-01), Mills
patent: 3951209 (1976-04-01), Gibbs
patent: 4015469 (1977-04-01), Womack et al.
patent: 4034808 (1977-07-01), Patterson
patent: 4058757 (1977-11-01), Welton et al.
patent: 4143546 (1979-03-01), Wiener
patent: 4145161 (1979-03-01), Skinner
patent: 4286925 (1981-09-01), Standish
patent: 4307395 (1981-12-01), Standish
patent: 4363605 (1982-12-01), Mills
Delfino Allan B.
Kirkpatrick Thomas I.
McTamaney Louis S.
Waltrip Delbert F.
Birmiel Howard A.
FMC Corporation
Guernsey Lloyd B.
Megley Richard B.
LandOfFree
Method and apparatus for detecting well pump-off 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 and apparatus for detecting well pump-off, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for detecting well pump-off will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1457135