Production index source rock
Origin of Source Rocks How Good Source Rocks Form: • 1. Sedimentation in areas of high organic productivity • 2. Preservation of organic matter in sediment Photosynthesis • The most important reaction on the planet (for us) •CO 2 ↑+ H 2O →CH 2O + O 2↑ chlorophyl light glucose Fate of Organic Matter in Oceans Organic Matter •Proteins A- Source Rock Evaluation: 1. TOC and Pyrolysis data migration index Rock-Eval pyrolysis analysis. gas-prone organic matter poor to fair hydrocarbon generation potential. Production Index. fairly mature and gas prone. the early oil generation zone The migration index (S1/TOC) ranges from. 0.03 to 0.49 mg HC/g TOC with an average value of 0.11 Areas with the highest charge are most likely to be nearest the source rock where it is the most thermally mature, or nearest the pod of active source rock. Conversely, areas most likely to have the lowest charge are farthest from the mature source rock, or farthest from the pod of active source rock. The logs define (1) potential, effective, and spent petroleum source rock; (2) the thermal maturation gradient, including immature, mature, and postmature zones, and (3) in situ and migrated petroleum shows. source rock may contribute to production, but primary production is from juxtaposed (overlying, interbedded, or underlying) organic-lean horizons, typically carbonates that are tight but productive with stimulation. In the Dakhla and Duwi sediments, hydrogen index ranges from 227 to 448 mg HC/gTOC, with an average around 332 mg HC/gTOC, and Tmax ranges from 434 to 436 °C, with an average of 448 °C, which places these formations within the marginally oil window [26] as it is considered as mature source rock.
source rock may contribute to production, but primary production is from juxtaposed (overlying, interbedded, or underlying) organic-lean horizons, typically carbonates that are tight but productive with stimulation.
In petroleum geology, source rock refers to rocks from which hydrocarbons have been generated or are capable of being generated. They form one of the necessary elements of a working petroleum system. They are organic-rich sediments that may have been deposited in a variety of environments including deep water marine, lacustrine and deltaic. The production index (PI) data in Montney Formation from the Rock-Eval analysis shows that PI has very low values (range from 0.11 to 2.6). More than 90% of PI values from the study area are less than 1. The relationship between production index (PI) and Tmax is shown in Figure 15. 4.15. Additionally, various ratios derived from this data can also aid in the interpretation of the characteristics of the organic matter in the rock. These include the Hydrogen Index (HI), Oxygen Index (OI) and production index (PI). The broadest element in source rock evaluation is the total organic carbon, or TOC, of a rock. TOC is the weigh percent of organic carbon present in a rock which is measured by the amount of CO2 released through combustion. Origin of Source Rocks How Good Source Rocks Form: • 1. Sedimentation in areas of high organic productivity • 2. Preservation of organic matter in sediment Photosynthesis • The most important reaction on the planet (for us) •CO 2 ↑+ H 2O →CH 2O + O 2↑ chlorophyl light glucose Fate of Organic Matter in Oceans Organic Matter •Proteins A- Source Rock Evaluation: 1. TOC and Pyrolysis data migration index Rock-Eval pyrolysis analysis. gas-prone organic matter poor to fair hydrocarbon generation potential. Production Index. fairly mature and gas prone. the early oil generation zone The migration index (S1/TOC) ranges from. 0.03 to 0.49 mg HC/g TOC with an average value of 0.11
includes the shale source rock of the Upper Member of Abbreviations: TOC, total organic carbon; HI, hydrogen index; OI, oxygen index; PI, production index
Three methods were direct-measurement techniques (vitrinite reflectance, and Tmax and production indices from Rock-Eval pyrolysis), and two were predictive 8 Jan 2018 Use of Rock-Eval pyrolysis in the petroleum exploration and production IV-2: Tmax/Production Index plot showing stage of thermal maturity of
The production index (PI) data in Montney Formation from the Rock-Eval analysis shows that PI has very low values (range from 0.11 to 2.6). More than 90% of PI values from the study area are less than 1. The relationship between production index (PI) and Tmax is shown in Figure 15. 4.15.
The aim of this chapter is to study source rock potential and thermal maturity the coal Production Index (PI), and the calculated vitrinite reflectance. The Rock
petroleum source rocks across the Prairie Provinces, except for an area of Hydrogen Index Oxygon Index Hydrocarbon Potential (51 +521 Production Index.
The type and maturity of organic matter in petroleum source rocks have been characterized from rock-eval pyrolysis data (Fig. 6). Geochemical parameters including HI [hydrogen index, ( S 2 /TOC) × 100], OI [oxygen index, ( S 3 /TOC) × 100] and PI [production index, S 1 /( S 1 + S 2 )] are calculated. The broadest element in source rock evaluation is the total organic carbon, or TOC, of a rock. TOC is the weigh percent of organic carbon present in a rock which is measured by the amount of CO2 released through combustion. The type and maturity of organic matter in petroleum source rocks can be characterized from Rock Eval pyrolysis data (see Fig. F5; from Emeis and Kvenvolden, 1986. This figure has been adapted for marine sediments cored by ODP.) using the following parameters: HI = hydrogen index (HI = [100 x S 2]/TOC). HI is a parameter used to characterize the origin of organic matter. In petroleum geology, source rock refers to rocks from which hydrocarbons have been generated or are capable of being generated. They form one of the necessary elements of a working petroleum system. They are organic-rich sediments that may have been deposited in a variety of environments including deep water marine, lacustrine and deltaic. The production index (PI) data in Montney Formation from the Rock-Eval analysis shows that PI has very low values (range from 0.11 to 2.6). More than 90% of PI values from the study area are less than 1. The relationship between production index (PI) and Tmax is shown in Figure 15. 4.15.
the three samples of black shale indicate potential as immature source rock and has the close enough of S1 and S2), Oil Production Index (division between. petroleum source rocks across the Prairie Provinces, except for an area of Hydrogen Index Oxygon Index Hydrocarbon Potential (51 +521 Production Index.