A Handbook on Evaluating Stripper Well Performance

Placeholder Show Content


Reservoir production data is often the only information upon which operational decisions and reserve estimates for stripper wells are based. This work presents a realm of available methodology to evaluate the performance of pumping wells and to improve the understanding of what is happening underground. Practical applications to a field example from a build up test conducted on a stripper well are presented throughout this study. The proposed methodology is inexpensive and evaluations of marginal producers are justified.Two techniques are presented for measuring liquid levels acoustically: (1) by collar summation, and (2) by acoustic velocity. A method for calculating acoustic velocities rigorously for natural gases is presented in Appendix C. If liquid levels cannot be determined acoustically, an alternate method based on the principle of mass balance in the annulus is outlined.The gas pressure at the liquid level is calculated using a stepwise procedure. The pressure drop across a dead oil column, or an oil column with gas in static equilibrium, is computed using a method presented by Standing (1977) where the oil column density is corrected for pressure and temperature. Three correlations are used to calculate the pressure drop across an oil column with gas bubbling through: (1) liquid column model, (2) Gilbert's correlation (1954) and (3) Podio et al. (1980).Measurements of liquid levels after shutin of a well are used to identify downhole problems and the wellbore fillup rate. The resulting pressure transient of a buildup test is evaluated using storage and skin type curves and a superposition technique. Conclusions are reached concerning the productive capacity of the stripper well tested.A method is proposed to determine well productivity and reservoir parameters for certain idle or shutin wells. The proposed solution utilizes superposition of constant sandface producing pressure with skin solution for an infinite reservoir.


Type of resource text
Date created June 1986


Author Mrlik, Richard Riker
Primary advisor Ramey, Jr., Henry J.
Advisor Sageev, Abraham
Degree granting institution Stanford University, Department of Petroleum Engineering


Subject School of Earth Energy & Environmental Sciences
Genre Thesis

Bibliographic information

Access conditions

Use and reproduction
User agrees that, where applicable, content will not be used to identify or to otherwise infringe the privacy or confidentiality rights of individuals. Content distributed via the Stanford Digital Repository may be subject to additional license and use restrictions applied by the depositor.

Preferred citation

Preferred Citation
Mrlik, Richard Riker. (1986). A Handbook on Evaluating Stripper Well Performance. Stanford Digital Repository. Available at: https://purl.stanford.edu/wf221jk4512


Master's Theses, Doerr School of Sustainability

View other items in this collection in SearchWorks

Contact information

Also listed in

Loading usage metrics...