The method involves introducing a pumping and measuring set into a production well fitted with a pipe or liner perforated in a part extending through a producing zone. This set is fastened to the end of a flow string and comprises an activation pump and at least one set for measuring the produced effluents. The improvement essentially consists in using secondary pumping means such as a positive-di...

PCT No. PCT/NO90/00177 Sec. 371 Date Jun. 8, 1992 Sec. 102(e) Date Jun. 8, 1992 PCT Filed Nov. 29, 1990 PCT Pub. No. WO91/09076 PCT Pub. Date Jun. 27, 1991.A method for production of a crosslinked, foamed vinyl chloride containing polymer, by adding a blowing agent to a copolymer produced by a copolymerisation of a monomer composition comprising vinyl chloride and glycidyl containing monomer, and ...

PURPOSE:To enable easy and effective manufacture of a current limiting element by removing or thinning a metal pipe excepting a terminal formation part after heating the metal pipe which is formed to a desired configuration filled with an oxide superconducting substance therein. CONSTITUTION:An Ag pipe is filled with an oxide superconducting substance and is sealed in vacuum. Then the Ag pipe is g...

PURPOSE: To carry out the selective permeation and separation of arom. compds. in a mixture with nonaromatic compds. by bringing the mixture into contact with one face of a membrane comprising a polyester such as polyethylene terephthalate. CONSTITUTION: A mixture of arom. compds. with nonarom. compds. is brought into contact with one face of a membrane formed from polyethylene terephthalate, poly...

PURPOSE: To selectively separate aromatic compds. from satd. compds. by forming a separation membrane with a crosslinked copolymer obtd. by bringing a specified aliphatic polyester diol and an acid clianhydride into reaction with a diisocyanate crosslinking agent. CONSTITUTION: An aliphatic polyester diol selected from polyadipic ester, polysuccinic ester, polymalonic ester, polyoxalic ester and p...

PURPOSE:To efficiently and safely recover oil by providing a piston ring to be pushed down by the pressure of replacing water from its supply port in oil recovery and utilizing the pressure balance between oil and water in a rotor. CONSTITUTION:Replacing water is supplied from its supply port 14 and accumulated in a chamber 15, hence the piston ring 8 is pushed down by the water pressure, and a pa...

Disclosed are olefin polymers in nonextruded, aspolymerized particle form having a regular, essentially symmetrical geometrical shape, which are stabilized by depositing on their surface a mixture which is either melted, or in which at least stabilizer (A) is in the liquid state, and which comprises the following stabilizers (percent by weight on the polymer): A) from 0.02% to 0.015% of one or m...

An early high-strength mineral polymer composition is formed of a polysialatesiloxo material obtained by adding a reactant mixture consisting of alumino-silicate oxide (Si2O5,Al2O2) with the aluminum cation in a four-fold coordination, strong alkalis such as sodium hydroxide and/or potassium hydroxide, water, and a sodium/potassium polysilicate solution; and from 15 to 26 parts, by weight, based u...

A method of producing polyamide foils by extrusion wherein a dispersion of a solid inorganic nucleating agent is added to the polyamide.

A machine for symmetrical stranding of at least two wires includes wire magazines in a number corresponding to the number of wires, from which magazines the wires are fed out. Rotatably arranged about an axis of rotation (38) is a flyer (31) having outwardly directed bow-shaped or semi-circular arms (32, 33) connected, on one hand, with a tubular, motor-driven drive sleeve (36) rotatable about the...

A magnetic theft detection system marker is adapted to generate magnetic fields at frequencies that (1) are harmonically related to an incident magnetic field applied within an interrogation zone and (2) have selected tones that provide the marker with signal identity. The marker is an elongated, ductile strip of amorphous ferromagnetic material having a value of magnetostriction near zero that re...

PURPOSE:To inform the incorrectness of a parameter to an operator when command procedure is executed in the case of designating an incorrect start-up parameter contrary to the operating condition of a program to be executed with the operator by checking the start-up parameter in the command procedure. CONSTITUTION:A parameter checking means 12 checks the validity of the start-up parameter received...

This invention provides a process for preparing, in high yields, diamino- or dialkylaminobenzenediols by hydrogenating the corresponding benzoquinone compounds in the presence of a solvent and a noble metal-containing catalyst.

An antistatic, fibrous structure for use in or with containers holding flammable liquids comprising a multiplicity of substantially irreversibly heat set carbonaceous fibers having a carbon content of greater than 65 percent by weight and an LOI value greater than 40, said carbonaceous fibers being present in an amount effective for preventing sloshing of the fluids and capable of arresting a flam...

A metal-made shaped article, of which aesthetic value is of importance, such as watch cases, is provided with a coating layer of a ceramic composition containing a limited amount of magnesium oxide as an essential ingredient, the balance being silicon dioxide, aluminum oxide, titanium dioxide and the like, and having a limited thickness. The ceramic-based coating layer can be deposited on the subs...

PURPOSE: To realize circuit arrangement constituted of processors operating in parallel by connecting a bi-directionally controllable interface and plural interfaces with an interface processor connected with input and output signals. CONSTITUTION: An input signal Dan is impressed to an interface processor SSP, and written through 8 parallel data lines of a bus line BU, bi-directionally controllab...

In the printing pad device described, the surface of the pad (20) is recessed while retaining essentially the same external form and volume. Also described is the use of the pad for at least partially coating a substrate (22) with a predetermined pattern. The substrate (22) is a printed circuit board for manufacturing integrated circuits, a component of a pharmaceutical presentation and/or dosage ...

In a process in which a first process variable is manipulated so as to maintain a second process variable substantially equal to a desired value for the second process variable, a set point for the first process variable is generated based on the difference between the actual value of the second process variable and the set point for the second process variable. The magnitude of the set point is d...

PURPOSE: To improve a prologue interpreter by replacing a standard prologue instruction for processing the object of an atom or the like with the substitutive expression of the object. CONSTITUTION: Clear indication reference to a hardware register is eliminated by allocating registers beforehand under the control of a program, indirect address specification is eliminated by replacing instructions...

The invention relates to compositions for the parenteral administration of an essentially uniform and continuous amount of a peptide composition over an extended period of time. The invention also relates to the preparation and administration of said peptide compositions.