Abstract: A technique for facilitating the use of a variety of completion elements in a wellbore environment. The technique utilizes an insertion guide disposed within an open-hole section of a wellbore. The insertion guide may be radially expanded towards the surrounding formation to remove excess annular space. The expansion of the insertion guide further allows the use of a completion element having a greater diameter than would otherwise be afforded.

Abstract: A method of sealing an annulus surrounding a slotted liner in a well includes the steps of generating a magnetic field in the annulus in a region to be sealed; and injecting into the region a sealing fluid including magnetic particles such that the fluid is confined to fill the annulus in the region to be sealed by the interaction of the magnetic particles and the magnetic field.

Abstract: A method of sealing an annulus surrounding a slotted liner in a well includes the steps of generating a magnetic field in the annulus in a region to be sealed; and injecting into the region a sealing fluid including magnetic particles such that the fluid is confined to fill the annulus in the region to be sealed by the interaction of the magnetic particles and the magnetic field.

Abstract: A technique for stimulating production of fluids from a subterranean formation. The technique utilizes a tubular member disposed within a wellbore. The tubular member comprises transverse openings that facilitate a formation fracturing process. Subsequent to fracturing, a completion element may be deployed within the tubular element. In some applications, the completion element is an expandable element.

Abstract: A technique for facilitating the use of a variety of completion elements in a wellbore environment. The technique utilizes an insertion guide disposed within an open-hole section of a wellbore. The insertion guide may be radially expanded towards the surrounding formation to remove excess annular space. The expansion of the insertion guide further allows the use of a completion element having a greater diameter than would otherwise be afforded.

Abstract: A technique for stimulating production of fluids from a subterranean formation. The technique utilizes a tubular member disposed within a wellbore. The tubular member comprises transverse openings that facilitate a formation fracturing process. Subsequent to fracturing, a completion element may be deployed within the tubular element. In some applications, the completion element is an expandable element.

Abstract: In the rotary drilling of oil wells a drilling mud is used both to transport the cuttings up to the surface and to impose an hydrostatic pressure on the walls of the borehole. For these functions the mud must for example have an acceptable density and viscosity. It is therefore important to monitor the characteristics of the mud, and to keep them within certain limits. The technique proposed involves the use of an ion selective/reference electrode pair to measure in the mud the potential of the selected ion (as a potential difference), and thus allow a determination of that ion's concentration. Thus, it is a method in which, using a selective/reference electrode pair where the reference electrode is of the type having a liquid junction via an aperture within the reference electrode containment vessel, there is determined the potential difference generated by, and thus the concentration of, the ion in the mud.

Abstract: The invention consists of a new process for selectively treating a subterranean formation without affecting or being effected by the two adjacent zones (above and below).Using the invented process, the treatment fluid is injected into the formation to be treated F, at the same time as two protection fluids, whether the same or different, are injected into the two adjacent zones (above [ZS] and below [ZI]).The process can be applied even in the presence of fractures, gravel-pack and their zones.

Abstract: The invention relates to a method for obtaining gelled hydrocarbon compositions, and their application in the hydraulic fracturing of rocks.The gelling method according to the invention uses as an activator a partially neutralized aluminum acid salt.