| Patent Number |
Title Of Patent |
Date Issued |
| 4802361 |
Production stream analyzer |
February 7, 1989 |
| A production stream analyzer, which analyzes a flowing crude oil production stream in a conduit, includes a temperature sensor, a capacitance measuring device and a densitometer which provide corresponding temperature, capacitance and density signals, respectively. An output circuit |
| 4636731 |
Propagation anisotropic well logging system and method |
January 13, 1987 |
| An anisotropic well logging system includes a well logging tool including a first transmitter coil spatially arranged within the well logging tool in a first predetermined manner and a second transmitter coil spatially arranged within the well logging tool in a second predetermined manne |
| 4592423 |
Hydrocarbon stratum retorting means and method |
June 3, 1986 |
| The system and the method of the present invention for the in-situ retorting of a hydrocarbon stratum, having a borehole traversing it, with electrical energy at a radio frequency (hereinafter referred to as rf energy) includes apparatus for conducting the rf energy from an rf energy |
| 4580050 |
Behind casing water flow detection |
April 1, 1986 |
| A method for providing a signal respresentative of undesired water flow behind well casing in a producing well includes locating a well tool sized and adapted for passage through a well bore having a source of high energy neutrons at least some of which have sufficient energy to cause a |
| 4539847 |
Acoustic method and apparatus for measuring thickness of a coating layer on a substrate |
September 10, 1985 |
| A method or system for measuring thickness of a coating layer on a substrate. It employs acoustic energy and involves transmitting a sweep of frequencies covering a predetermined range through the substrate and its coating. The energies reflected back by the substrate and coating are |
| 4514627 |
Petroleum stream analyzer |
April 30, 1985 |
| A petroleum stream analyzer includes a test cell having a petroleum stream, or portion thereof, flowing through it. A neutron source bombards the petroleum stream in the test cell with fast neutrons, which are slowed down and thereafter engaged in thermal neutron capture reaction with |
| 4458524 |
Crude oil production stream analyzer |
July 10, 1984 |
| A crude oil production stream analyzer includes a device which measures the dielectric constant of the crude oil production stream and provides a signal corresponding thereto. A densitometer provides a density signal representative of the density of the crude oil production stream. At le |
| 4365154 |
Detection of impurities in a fluid containing free gas using nuclear techniques |
December 21, 1982 |
| Fluid containing free gas and in a pipeline or container at a refinery or at any of various petroleum producing operations is bombarded with neutrons and high energy gamma rays resulting from capture of thermal neutrons are detected. The spectra of the detected gamma rays are then an |
| 4352288 |
Measurement of salt content in petroleum flow lines |
October 5, 1982 |
| The salt content of a fluid in a pipeline or container in petroleum producing or refining operations is determined by obtaining a measure of water cut of an oil-water-free gas fluid mixture. The conductivity of the fluid is measured by radio frequency (RF) induction techniques, while the |
| 4301400 |
Microwave water in crude monitor |
November 17, 1981 |
| A microwave water-in-crude monitor measures the percent quantity of water in crude oil flowing in a pipe line by causing the crude oil to flow through a measuring cell. A microwave transmitter is arranged with the measuring cell and transmits microwave energy through the measuring cell. |
| 4289020 |
Microwave-gamma ray water in crude monitor |
September 15, 1981 |
| A microwave-gamma ray water-in-crude monitor measures the percent quantity of water in crude oil flowing in a pipe line by causing the crude oil to flow through a measuring cell. A microwave transmitter and a gamma ray source are arranged with the measuring cell and transmits microwave e |
| 4282760 |
Multiphase fluid flow meter (D#76,244) |
August 11, 1981 |
| An improved multiphase fluid flow meter for fluid which contains gas. It has a full circle loop to subject the flowing fluid to centrifugal force, and it can measure the pressure differentials between the center and the outside and inside radii of the loop. Also it can measure the densit |
| 4282760 |
Multiphase fluid flow meter (D#76,244) |
August 11, 1981 |
| An improved multiphase fluid flow meter for fluid which contains gas. It has a full circle loop to subject the flowing fluid to centrifugal force, and it can measure the pressure differentials between the center and the outside and inside radii of the loop. Also it can measure the densit |
| 4228350 |
Method and apparatus for measuring underground fluid flow characteristics |
October 14, 1980 |
| An underground logging tool is equipped with a gamma ray detector encircled by a rotatable shield featuring a collimator slot. After the fluid in a formation is activated by a neutron source, the detector is used to obtain radiation count information as a function of horizontal direction |
| 4209695 |
Detection of impurities in fluid flowing in refinery pipeline or oil production operations using |
June 24, 1980 |
| Fluid in a pipeline or container at a refinery or at any of various petroleum producing operations is bombarded with neutrons, and high energy gamma rays resulting from capture of thermal neutrons are detected. The spectra of the detected gamma rays are then analyzed to determine the |
| 4169979 |
Method and apparatus for measuring azimuth and speed of horizontal fluid flow by a borehole |
October 2, 1979 |
| Formation fluid is activated by a neutron source. A cluster of three gamma ray detectors provides count rate data with the count values varying among the three detectors as dictated by the geometry of the cluster and the angle of displacement of the activated fluid between the time of ne |
| 4137452 |
Method of measuring horizontal fluid flow in cased off subsurface formations with manganese comp |
January 30, 1979 |
| Fluid in permeable earth formations adjacent well casing is irradiated with neutrons to form radioactive tracer isotopes in the chemical elements comprising the fluid, typically sodium 24 in saline subsurface formation water, which decays by emission of gamma rays. By measuring the rate |
| 4071757 |
Detection of behind casing water flow at an angle to the axis of a well borehole |
January 31, 1978 |
| Methods and apparatus are disclosed herein for detecting undesired water flow at an angle to the axis of a well borehole. The borehole envisons is irradiated with 14 MEV neutrons resulting in the in situ creation of the radioactive tracer element N.sup.16 in the flowing water. Two spaced |
| 4057720 |
Behind casing fluid flow detection in producing wells using gas lift |
November 8, 1977 |
| Methods are provided for locating and measuring the linear flow velocity and volume flow rate of undesired water production behind casing in a producing well operating on gas lift while the well remains in a producing configuration. A well logging tool sized and adapted for passing throu |
| 4051368 |
Method of measuring horizontal flow speed of fluids in earth formations penetrated by a wellbore |
September 27, 1977 |
| The horizontal flow rate of fluid in permeable earth formations is measured by the in situ creation of a radioactive tracer isotope having a predetermined decay life time and decay mode. Measurements at different time intervals following the creation of the tracer isotope of the decay |
| 4035640 |
Behind casing water flow detection using pulsed neutron oxygen activation |
July 12, 1977 |
| Measurement of the linear flow velocity and volume flow rate of undesired behind casing water flow is provided. A well tool having a 14 MEV pulsed neutron source is used to irradiate the earth formations behind well casing with bursts of high energy neutrons. This irradiation activates |
| 4032780 |
Behind casing water flow detection using continuous oxygen activation |
June 28, 1977 |
| Measurement of the volume flow rate and linear flow velocity of undesired behind casing water flow is provided. A well tool having a 14 MEV neutron source is used to continuously irradiate earth formations behind well casing. The continuous neutron irradiation activates elemental oxygen |
| 4032779 |
Behind casing water volume flow rate measurement using concentric gamma ray detectors |
June 28, 1977 |
| Measurement of the distance from a gamma ray detector to a gamma ray source for location of a channel of undesired behind casing water flow in a producing well is provided. Coaxially aligned dual cylindrical gamma ray detector crystals are used at one or more longitudinally spaced locati |
| 4032778 |
Behind casing water volume flow rate measurement using gamma ray spectral degradation |
June 28, 1977 |
| Measurement of the distance from a gamma ray detector to a gamma ray source for locating of a channel of undesired behind casing water flow in a producing well is provided. A relationship is given for the count rate ratio at a detector in two distinct energy regions of the gamma ray |
| 3979300 |
Three frequency modulated combination thermal neutron lifetime log and porosity |
September 7, 1976 |
| Methods are disclosed for measuring simultaneously the thermal neutron lifetime of the borehole fluid and earth formations in the vicinity of a well borehole, together with the formation porosity. A harmonically intensity modulated source of fast neutrons is used to irradiate the earth |
| 3940613 |
Three frequency modulated thermal neutron lifetime log |
February 24, 1976 |
| Methods are disclosed for measuring simultaneously the thermal neutron lifetime of the borehole fluid and earth formations in the vicinity of a well borehole. A harmonically intensity modulated source of fast neutrons is used to irradiate the earth formations with fast neutrons at three |
