Gravel pack tool
A well tool for depositing a gravel pack into an annulus formed between a casing string and the lower portion of a production tubing string. The well tool includes a sliding sleeve valve which can be shifted to allow communication of a gravel pack slurry to the annulus through lateral ports in the sleeve valve. The sleeve valve includes shoulders which extend to engage a shifting tool preventing removal of the shifting tool from the sleeve valve with the lateral ports open. The sleeve valve allows improved methods to be used to compress the gravel pack and remove undesired fluids from the gravel pack. Methods are disclosed to position the sleeve valve to allow the gravel pack slurry to flow into the annulus or to isolate the annulus and compress the gravel pack. The preferred well installation for using this invention includes a production packer with the sleeve valve and a gravel pack screen attached to the lower end of the packer. The packer is positioned at a preselected location within the casing string and a production tubing string can be engaged with the upper end of the packer after the gravel pack has been deposited and the sleeve valve has been closed.
- Assignee:
- Otis Engineering Corp
- Patent Number(s):
- US 4253522
- OSTI ID:
- 6355897
- Country of Publication:
- United States
- Language:
- English
Similar Records
Method and means for stabilizing gravel packs
Fail-safe one trip perforating and gravel pack system