42 Technical consultancy in the field of environmental science related to reduction of environmental and climate impact, emissions, emission of pollutants, emission of greenhouse gases, and emission of carbon caused by and related to oil and gas operations; technical consultancy in the field of environmental science related to reduction of environmental and climate impact, emissions, emission of pollutants, emission of greenhouse gases, and emission of carbon caused by and related to downhole projects and operations, downhole conveyance operations, and downhole logging, cement evaluation, perforating, intervention, jarring, fishing, and pump-down operations; technical consultancy in the field of environmental science related to carbon sequestration and carbon offset projects related to oil and gas operations; technical consultancy in the field of environmental science related to carbon sequestration and carbon offset projects related to downhole projects and operations, downhole conveyance operations, and downhole logging, cement evaluation, perforating, intervention, jarring, fishing, and pump-down operations; computer modeling services in the field of oil and gas; computer modeling services in the field of oil and gas, namely, computer modeling of oil and gas operations; computer modeling services in the field of oil and gas, namely, computer modeling of downhole projects and operations; computer modeling services in the field of oil and gas, namely, computer modeling of downhole conveyance operations; computer modeling services in the field of oil and gas, namely, computer modeling of downhole logging, cement evaluation, perforating, intervention, jarring, fishing, and pump-down operations; computer modeling services in the field of oil and gas, namely, computer modeling of oil and gas operations in a manner that reduces environmental and climate impact; computer modeling services in the field of oil and gas, namely, computer modeling of oil and gas operations in a manner that reduces emissions; computer modeling services in the field of oil and gas, namely, computer modeling of oil and gas operations in a manner that reduces emission of greenhouse gases; computer modeling services in the field of oil and gas, namely, computer modeling of oil and gas operations in a manner that reduces emission of carbon; computer modeling services in the field of oil and gas, namely, computer modeling of oil and gas downhole conveyance operations in a manner that reduces emissions; computer modeling services in the field of oil and gas, namely, computer modeling of downhole logging, cement evaluation, perforating, intervention, jarring, fishing, and pump-down operations in a manner that reduces emissions; and computer modeling services in the field of oil and gas, namely, computer modeling of carbon sequestration and carbon offset projects related to oil and gas operations