Weatherford/lamb, Inc.

Other

Hpi As

Testtech Services As

Tom Unsgaard

Jan Drechsler

Thurman B Carter

William A Blizzard, Jr

John Douglas Roberts

Dale E Langford

Steffen Eversen

Tom Salversen

Eirik Enerstvedt

A well pump device is introduced into a well and connects to a wireline to receive electrical energy from the surface. An electrically driven feed pump connects to and delivers driving fluid to the driving side of an ejector. A hydraulic apparatus uses the well pump device as a pulling tool.

Well pump device

A method and device for displacement of a first fluid by means of a second fluid in a borehole () in the ground, where, during displacement, the second fluid is kept separate from the first fluid, and where the volume of an expandable space () in which the second fluid is to be located following the displacement, increases during inflow of the second fluid.

Method and device for fluid displacement

A new wellbore apparatus has been invented which, in certain aspects, has anchor apparatus for anchoring the wellbore apparatus in a bore, the anchor apparatus actuated by fluid under pressure supplied thereto, and sealing apparatus selectively inflatable to close off the bore to fluid flow therethrough, and temperature compensating apparatus for maintaining a desired fluid pressure in the sealing apparatus to prevent it from bursting or deflating. A method for closing off a bore in a well has been invented which, in certain aspects, includes installing wellbore apparatus in the bore, the wellbore apparatus comprising anchor apparatus for anchoring the wellbore apparatus in a bore, the anchor apparatus actuated by fluid under pressure supplied thereto, and sealing apparatus interconnected with the anchor apparatus and selectively inflatable with fluid under pressure to close off the bore to fluid flow therethrough, and the wellbore apparatus upon anchoring in the bore and inflation of the sealing apparatus including a primary barrier in the bore.

Wellbore primary barrier and related systems

A sand removing apparatus which is intended to be used in the lower area of underwater wells and is suspended from the end of a pipe string, includes a container having a closeable inlet for allowing a flow of liquid accompanied by sand thereinto. The container has a separate outlet assigned a suction side of a pump constituting the drive device for the apparatus. The drive device is kept going until a degree of filling of the container has been achieved. Between a separate inlet provided with a one-way valve and the separate outlet, a filter is disposed, so that sand remains in the container while the carrier liquid exits the container. In one embodiment, the drive device is a liquid-driven jet jump.

Method and apparatus for the removal of sand in an underwater well

Inflatable downhole seal

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Stavanger, Norway

Tom Unsgaard