Abstract: Novel tools and techniques are provided for implementing intent-based orchestration using network parsimony trees. In various embodiments, in response to receiving a request for network services that comprises desired characteristics and performance parameters for the requested network services without information regarding specific hardware, hardware type, location, or network, a computing system might generate a request-based parsimony tree based on the desired characteristics and performance parameters. The computing system might access, from a datastore, a plurality of network-based parsimony trees that are each generated based on measured network metrics, might compare the request-based parsimony tree with each of one or more network-based parsimony trees to determine a fitness score for each network-based parsimony tree, and might identify a best-fit network-based parsimony tree based on the fitness scores.

Abstract: The oil well pump power unit is provided with a drive for reciprocating the sucker rod of an oil well pump. The rod (18) is fixed to a transverse beam (23) which is integral with ball nut housings (4), one at each end of the beam (23). The ball nuts (2) mounted in the housings (4) engage--in a frictionless, ball bearing type engagement--each a drive ball screw (1). The screws are driven concurrently by a drive motor. The advance in the art is in that this unit has a light weight and requires minimum driving power. Due to its light weight, it can easily be installed without special requirements for the foundation etc. Also, the maintenance is simple as all moving components are entirely enclosed in a housing (26) or protected by bellows (5, 6).

Abstract: A tool is disclosed for inserting an oil wellhead isolation device into a well casing. The device includes a mandrel which is threaded on its exterior and which forms a part of a ball nut displacement drive system. The drive nut and its associated mechanical drive components are disposed within a drive housing. The invention presents a novel drive system for the inserting of the mandrel. It provides a simpler and more compact overall structure. Furthermore, the disadvantage is avoided of the jamming encountered in prior art devices operating with a plurality of hydraulic or mechanical displacement devices disposed at a distance from the axis of the mandrel.

Abstract: A wellhead servicing tool is disclosed which comprises an axially shiftable cup which, in one position, virtually entirely surrounds the seal of the tool to facilitate its insertion into the casing of the wellhead. In another extreme position, the cup is shifted away from the seal releasing the latter into sealing engagement with the casing. A telescoping assembly extensible over the main tube of the device reinforces the tube prior to and during the securement to the casing to be serviced thus further facilitating the insertion of the tool into the casing of the services wellhead.