Abstract: A tool for removing solid particles from a well after sand fracturing, drilling, etc. The tool includes a flapper valve assembly above a drill bit, a sand screen, and a screw pump. Fluid in the well, with the solid particles therein, is pumped into the tool by rotating the screw pump, wherein the fluid moves past the bit, across the flapper valve assembly, and through the sand screen. The solid particles stay in a cavity above the flapper valve, but the fluid moves further along the screw pump and is returned along the outside of the tool to the bit, to start the cycle over again. Over time, the cavity fills with solid particles, and the device is raised to the surface, where the accumulated solid particles are dumped. The device can be re-introduced into the well to remove more solid particles, if necessary.

Abstract: A tool for removing solid particles from a well after sand fracturing, drilling, etc. The tool includes a flapper valve assembly above a drill bit, a sand screen, and a screw pump. Fluid in the well, with the solid particles therein, is pumped into the tool by rotating the screw pump, wherein the fluid moves past the bit, across the flapper valve assembly, and through the sand screen. The solid particles stay in a cavity above the flapper valve, but the fluid moves further along the screw pump and is returned along the outside of the tool to the bit, to start the cycle over again. Over time, the cavity fills with solid particles, and the device is raised to the surface, where the accumulated solid particles are dumped. The device can be re-introduced into the well to remove more solid particles, if necessary.

Abstract: A packer assembly and its method of use are provided, the packer assembly being carried on a first conduit for use in wells exposed to corrosive injection fluids, the well being encased by a second conduit having a locking recess defined therein, such as by having first and second conduit members, the conduit members being interengaged by coupling whereby the locking recess is defined by the coupling element and between the conduit members. The assembly comprises a body member communicating to the first conduit and having a slotted configuration thereon. An inwardly flexible, outwadly urged collet assembly is exterior of the body, with control means on the collet assembly being carryable within the slotted configuration. Means on said body define a pocket for selective receipt of the collet assembly for locking the collet assembly relative to the locking recess.

Abstract: A packer assembly and its method of use are provided, the packer assembly being carried on a first conduit for use in wells exposed to corrosive injection fluids, the well being encased by a second conduit having a locking recess defined therein, such as by having first and second conduit members, the conduit members being interengaged by coupling whereby the locking recess is defined by the coupling element and between the conduit members. The assembly comprises a body member communicating to the first conduit and having a slotted configuration thereon. An inwardly flexible, outwardly urged collet assembly is exterior of the body, with control means on the collet assembly being carryable within the slotted configuration. Means on said body define a pocket for selective receipt of the collet assembly for locking the collet assembly relative to the locking recess.