Fluid ejection apparatus for well completion tools
Patent
·
OSTI ID:6353657
The present trend in well-completion techniques is to rely upon only one or, at most, a very few perforations at each of carefully selected points in a well rather than indiscriminately scattering a large number of perforations along a wide interval. Where such perforations are made in a particularly loose or unconsolidated formation, sand particles and the like, will, however, be displaced into the well bore as connate fluids are produced from the formation. Thus, unless preventive measures are taken, these sand particles will either settle out so as to eventually fill the well bore or be carried to the surface by the produced fluids and severely damage production equipment. To solve this problem, apparatus and methods have been devised whereby as soon as a loose formation is perforated, a suitable bonding or consolidating agent is injected through the perforation into the formation where, in time, it will react and harden. It is an object of the present invention to provide new and improved apparatus utilizing the hydrostatic pressure of the well control fluids to develop an injection pressure that is substantially greater than the hydrostatic pressure, but without requiring a treating cylinder that is of an impractical size. (4 claims)
- Assignee:
- Schlumberger Technol. Corp.
- Patent Number(s):
- US 3327785
- OSTI ID:
- 6353657
- Country of Publication:
- United States
- Language:
- English
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