35 results about "Petroleum system" patented technology

A method and system for integrating multiple analytical processes for evaluating risk and uncertainty elements of a petroleum system. The integrated environment provides a consistent means of analysis for evaluating multiple petroleum systems including exploration prospects and reservoirs, wherein multiple evaluation tools can be used and each of the tools has a similar “look” and “feel” so that a user can efficiently utilize all of the tools in the integrated environment. The evaluation tools analyze common data sets within the integrated environment so that a consistent evaluation of a petroleum system can be performed.

A method of modeling a salt history for a geologic region containing a salt formation includes defining initial geometry of salt volume and sediment volume in three dimensions, changing geometry of the salt top and maintain the geometries of a top of the sediment and a base of the salt formation for a plurality of time steps, and for each change of geometry, conserving a volume of salt and a volume of sediment. The method includes initially constraining a geometry of the base of the salt during the changing geometry of the salt and sediment volumes, modeling geological activity in the geologic region and modifying the base of the salt formation during a time of the time steps, and modifying the volumes in accordance with the modeled geological activity.

The invention provides a system and method for integrating petroleum system and geomechanical computer models for use in oil and gas exploration. In one embodiment, the invention provides a petroleum system model capable of analyzing data relating to a subterranean formation and calculating the geometry and geochemistry of each layer of the formation through geologic time. The present invention also provides a geomechanical model in communication with the petroleum system model such that information concerning each layer of the subterranean formation may be shared and cross-referenced as an iterative operation prior to the analysis of subsequent layers. At each step of the iterative operation, results are calculated, validated, and cross-referenced in order to produce improved reliability estimates of petroleum charge and mechanical seal integrity for the subterranean formation.

A method and system for integrating multiple analytical processes for evaluating risk and uncertainty elements of a petroleum system. The integrated environment provides a consistent means of analysis for evaluating multiple petroleum systems including exploration prospects and reservoirs, wherein multiple evaluation tools can be used and each of the tools has a similar ''look'' and ''feel'' so that a user can efficiently utilize all of the tools in the integrated environment. The evaluation tools analyze common data sets within the integrated environment so that a consistent evaluation of a petroleum system can be performed.

Coupling fluid-flow model and geomechanical model for integrated petroleum systems, in one aspect, may comprise analyzing historical data associated with a reservoir to determine one or more triggering events that trigger abrupt changes in the state of stress of the reservoir solid framework and in the pore pressure. One or more time steps are defined based on the determined triggering events. The fluid-flow model and the geomechanical model are coupled at the one or more defined time steps, e.g., one-way or two-way. Number of iterations may be calculated automatically for the two-way coupling to converge.

This method allows for prediction of subsurface fluid properties (e.g., phase or API gravity) using gas chromatogram data of a small-volume extract. Small volume equates to microliter scale volume (or milligram scale weight) from a subsurface rock sample, where a fluid test may not be available for analysis. The method may also be applied to petroleum liquid samples where drilling fluid or other contaminants preclude accurate direct property measurement. Gas chromatographic data is calibrated to measured petroleum properties; preferably local oils from the same petroleum system, however, a general global calibration can also be used.

The invention discloses a filtering device, which comprises a first filter, a second filter and a third filter; a first input pipe with a first input valve is arranged at the inlet end of the first filter; There is a first output pipe with a first output valve; a second input pipe with a second input valve is provided at the inlet of the second filter, and a second output pipe with a second output valve is provided at the outlet; The inlet end of the three filters is provided with a third input pipe with a third input valve, and the outlet end is provided with a third output pipe with a third output valve; the first filter and the second filter are connected in parallel to form a parallel filter group; The free ends of the three input pipes are connected to the output ends of the parallel filter groups, or the free ends of the third output pipe are connected to the input ends of the parallel filter groups. The filtering group device can connect two filters in series, and the filtering effect is good. The present invention also provides a petroleum hydrogenation system, which uses the above filter device and can improve the purity of hydrogenation raw materials.

The invention provides a method for confirming the lower limit of abundance of dispersing liquid hydrocarbon in hydrocarbon source rock. The method comprises the following steps: sampling series of foundational hydrocarbon source rock samples in a to-be-measured area; determining the samples, thereby acquiring a free hydrocarbon volume S1 (determined), a pyrolysis hydrocarbon volume S2 (determined) and a hydrocarbon generating potential volume S1 (determined) + S2 (determined); correcting the S1 (determined), thereby acquiring the S1 (corrected); classifying according to the sedimentary facies, and respectively establishing a relational expression between S1 (corrected) and S1 (determined) + S2 (determined); and by utilizing the relational expressions between the S1 (corrected) and S1 (determined) as well as S1 (determined) + S2 (determined) according to an evaluation criterion for abundance of organic matters established by taking the hydrocarbon generating potential volume S1+S2 as parameters, acquiring the lower limit of abundance of dispersing liquid hydrocarbon in hydrocarbon source rock, which is established by taking the free hydrocarbon volume S1 as the parameter. The acquired result according to the method provided by the invention can be used for accurately judging whether the dispersing liquid hydrocarbon in hydrocarbon source rock can be taken as effective hydrocarbon source rock or effective gas source at any level; the criterion is supplied for evaluation; and the method has important theoretical significance in acknowledging the exploration potential of a deep old petroleum system and also has important reality in expanding the exploration discovery.

The invention provides a natural grid dissection method of a geological profile. The method comprises a stratum grid generation step and a step of forming side and point grids that reflecting communication relation among faults, cracks and unconformable channels on the basis of dissection of a stratum grid. The stratum grid is composed of enclosed first grid units which are positioned between stratum boundaries and fracture lines and formed by intersecting with manual inserted lines, the stratum boundaries comprise stratum conformable and unconformable contact lines, and the crack lines comprise the faults and cracks. The natural grid dissection method of the geological profile relies on specific natural grid form characteristics (reserving original forms of the faults, cracks and unconformable layers) of the side grids, characteristics of distribution and transmission capabilities of an oil gas transmission system are described in a better way, and significant means is provide for oil gas migration-accumulation simulation, oil gas contained system analysis and oil gas reservoir forming research.