Beijing, China

China National Petroleum Corporation is a Chinese state-owned oil and gas corporation and the largest integrated energy company in China. Its headquarters are in Dongcheng District, Beijing.CNPC is the parent of PetroChina, the fourth largest company in the world in terms of revenue as of July 2014. Wikipedia.


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Patent
China National Petroleum Corporation, China University of Petroleum - Beijing and Green Technology Ltd Co. | Date: 2016-03-22

The present invention relates to a bimetallic mercaptan conversion catalyst for sweetening liquefied petroleum gas at a low temperature, which is prepared by using an Al_(2)O_(3)SiO_(2 )composite oxide as a carrier to support bimetallic active components vanadium and nickel. The bimetallic mercaptan conversion catalyst has a proper specific surface area and more metal active center sites, and has advantages of simple preparation, an efficient mercaptan conversion ability even at a low temperature, and causing no saturation and polymerization of olefins. The bimetallic mercaptan conversion catalyst exhibits superior mercaptan conversion performance in LPG sweetening, has strong adaptability to starting materials, and can also nearly completely remove trace carbonyl sulfide contained in LPG.


Patent
China National Petroleum Corporation and BGP Inc. | Date: 2016-09-28

An automatic inspection and monitoring method based on time domain slotting control, belonging to the technical field where the field personnel can automatically inspect and monitor a field device of a seismic apparatus in the seismic exploration production. A method of extraction and transmission of a seismic apparatus host on the information of a field device is implemented by a master control program, test information about the seismic apparatus host on the field device can be automatically extracted and classified from the seismic apparatus host, and according to a designed push protocol, a protocol encoding is conducted; a data frame block is automatically generated; and then the information is delivered via a broadcasting station; an encoding protocol of information push is designed for avoiding information loss caused by signal instability, etc. during information push. According to the protocol, the state information on the field device is encoded to generate a data frame block. There is no more need in the present invention for the operating personnel of the seismic apparatus to read and broadcast the content of the field device item by item, and it only needs to set a software operation mode, so that the automatic extraction and transmission of the state information on the field device can be extracted and transmitted.


Patent
China National Petroleum Corporation and BGP Inc. | Date: 2016-05-19

An automatic inspection and monitoring method based on time domain slotting control, belonging to the technical field where the field personnel can automatically inspect and monitor a field device of a seismic apparatus in the seismic exploration production. A method of extraction and transmission of a seismic apparatus host on the information of a field device is implemented by a master control program, test information about the seismic apparatus host on the field device can be automatically extracted and classified from the seismic apparatus host, and according to a designed push protocol, a protocol encoding is conducted; a data frame block is automatically generated; and then the information is delivered via a broadcasting station; an encoding protocol of information push is designed for avoiding information loss caused by signal instability, etc. during information push. According to the protocol, the state information on the field device is encoded to generate a data frame block. There is no more need in the present invention for the operating personnel of the seismic apparatus to read and broadcast the content of the field device item by item, and it only needs to set a software operation mode, so that the automatic extraction and transmission of the state information on the field device can be extracted and transmitted.


Patent
China National Petroleum Corporation and BGP Inc. | Date: 2015-11-19

The present invention provides a method of searching for oil-gas reservoir based on TRAP-3D software, including: establishing a three-dimensional lithology and fault data cube of an exploration working area according to three-dimensional seismic data and logging data; dividing the three-dimensional lithology and fault data cube into several depth slices of the same depth, and performing an individual sand body unit division for each depth slice; sequentially inputting the depth slices of the three-dimensional lithology and fault data cube into the TRAP-3D software for oil-gas reservoir evaluation. The present invention imporves the accuracy of three-dimensional trap evaluation, is conducive to precise searching of the oil-gas reservoir, can plot a Sweet-Spot diagram on a plane, and get exhibits oil-gas trap amounts of different depths in a longitudinal direction, and can obtain a total trap amount of the oil gas reservoir in the exploration working area.


Patent
China National Petroleum Corporation and BGP Inc. | Date: 2016-09-28

A monitoring system for use in seismic instrument arrangement in petroleum exploration, belonging to the technical field of network transmission of seismic instrument arrangement information, comprises a host server and a hand-held terminal device, wherein the host server is configured to be connected to a host machine of a seismic instrument, manipulated by an instrument operator, can extract the seismic instrument arrangement information, classify field arrangement information based on the corresponding setting and transmit the arrangement information by using a 2G/3G network; the hand-held terminal device can receive the field arrangement information transmitted by the host server, by the 2G/3G network, and alarm and remind line inspection personnel to conduct an arrangement check; after completing the inspection task, the line inspection personnel can send inquiry information via the hand-held terminal device to inquire of the instrument operator about the line inspection condition. The present invention reduces the difficulty of checking an arrangement at the time of the seismic exploration and production, shortens the required time for checking an arrangement and plays an important role in improving a production efficiency of seismic exploration.


Patent
China National Petroleum Corporation and BGP Inc. | Date: 2015-02-18

Provided is a method for performing layer Q factor inversion by using an amplitude spectrum attribute of a downlink wave of vertical seismic profile data in a geophysical exploration data processing technology. In the method, first an F-K (frequency-wave number) method is used to perform wave field separation on VSP original data, so as to obtain a downlink wave; a downlink sub-wave and a monitoring sub-wave are selected to undergone Fourier transform to obtain an amplitude spectrum, polynomial fitting is performed on the amplitude spectrum to obtain an equivalent Q, and a formula between the equivalent Q and a layer Q is used to perform inversion, so as to obtain the layer Q. The method has a strong capability of resisting random disturbance, and is capable of removing a difference of triggering sub-wave. The algorithm is simple and can greatly save workload; moreover, the layer Q value obtained through inversion has a desirable stability and high precision.


Patent
China National Petroleum Corporation and BGP Inc. | Date: 2016-05-19

A monitoring system for use in seismic instrument arrangement in petroleum exploration, belonging to the technical field of network transmission of seismic instrument arrangement information, comprises a host server and a hand-held terminal device, wherein the host server is configured to be connected to a host machine of a seismic instrument, manipulated by an instrument operator, can extract the seismic instrument arrangement information, classify field arrangement information based on the corresponding setting and transmit the arrangement information by using a 2G/3G network; the hand-held terminal device can receive the field arrangement information transmitted by the host server, by the 2G/3G network, and alarm and remind line inspection personnel to conduct an arrangement check; after completing the inspection task, the line inspection personnel can send inquiry information via the hand-held terminal device to inquire of the instrument operator about the line inspection condition. The present invention reduces the difficulty of checking an arrangement at the time of the seismic exploration and production, shortens the required time for checking an arrangement and plays an important role in improving a production efficiency of seismic exploration.


Patent
China National Petroleum Corporation | Date: 2015-11-05

The present disclosure provides a connection structure between an aluminum alloy drill pipe body and a steel joint of an aluminum alloy drill pipe, including a first joint at an end of the aluminum alloy pipe body and a steel second joint; wherein the first joint includes a first external threaded section and a second external threaded section provided from outside to inside thereof, and a major diameter of the first external threaded section is smaller than that of the second external threaded section; and wherein the second joint includes a first internal threaded section which is able to be fitted with the first external threaded section and a second internal threaded section which is able to be fitted with the second external threaded section, and a pitch diameter of the second external threaded section is larger than that of the second internal threaded section.


Patent
China National Petroleum Corporation | Date: 2015-11-10

An apparatus includes a sub with recesses along an exterior wall to receive inserts, an antenna case including a coil surrounded by a sacrificial wear portion of a material through which signals between the coil and a formation of interest may pass. An eroded outer wall of the sacrificial wear portion is restorable by application of an uncured restorative material to the antenna case. A method includes securing an antenna case having a coil there within onto a sub, surrounding the coil with a metal sleeve shield, and radially receiving and securing a multi-piece sacrificial wear member intermediate the antenna case and a retainer ring having a threaded bore. The multi-piece sacrificial wear member is replaceable after use by unthreading the retainer ring to release the sacrificial wear member for radial removal from the sub.


Patent
China National Petroleum Corporation | Date: 2015-11-10

A system and apparatus for configuring a well logging assembly having an elongate sub with a bore therethrough, a leading end connection and a trailing end connection, a plurality of sets of recesses in an exterior wall of the sub to receive a plurality of sets of inserts, each having a threaded exterior surface, a plurality of internally threaded retainer rings, and a plurality of well logging devices securable to the exterior wall of the sub using the retainer rings to threadably engage the inserts received in the recesses. The system enables convenient configuration and reconfiguration of the well logging assembly by enabling convenient securing of a first well logging instrument to the sub at a variety of spacings from a second well logging instrument to provide a variety of depths of investigation into a geologic formation penetrated by a drill string containing the well logging assembly.

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