Abstract
Increased injection volume during a casing-shoe test is needed to gather data, but it increases the possibility of lost circulation or reduced casing-shoe strength after testing. These hazards often encour7 age drilling engineers to halt casing-shoe tests prematurely just to confirm the casing-shoe strength. This paper addresses drilling-engineering concerns regarding lost circulation during a casing-shoe test, the extent of fracture propagation, the amount of data obtainable as a function of the drilling-fluid volume injected, and the casing-shoe integrity expected after testing. Laboratory data and a numerical model are used to illustrate phenomena that occur during casing-shoe tests. Analysis of the data yields guidelines for safe casing-shoe tests.
| Original language | English |
|---|---|
| Pages (from-to) | 266-274 |
| Number of pages | 9 |
| Journal | SPE Drilling and Completion |
| Volume | 12 |
| Issue number | 4 |
| Publication status | Published - 1997 Dec |
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ASJC Scopus subject areas
- Fuel Technology