The calculation method of crude oil production

There are two ways to calculate crude oil production: positive algorithm and inverted algorithm
.

1.
The "positive algorithm" is a method of calculating crude oil production according to the production process from the production point of
view.

2.
The "inverted algorithm" is a calculation method
for calculating crude oil production from the perspective of sales according to sales volume, self-use volume, and inventory difference at the end and beginning of the period.
Its calculation formula is as follows:

Crude oil production = (ending inventory + sales volume + enterprise self-use - opening inventory) / (1 - loss rate) + international cooperation share of oil and crude oil commodity volume, refers to the current period of production available for sale
.
It reflects the total amount of crude oil commodities that enterprises provide to the society, and its calculation formula is as follows:

Crude oil commodity volume = crude oil production - production of self-use - crude oil loss

The amount of crude oil used by the enterprise refers to the total amount
of crude oil used by the enterprise within the enterprise.
Including the production of self-use, mining area other quantities
.

1.
The amount of production self-use refers to the amount of oil used in oil and gas production (refers to the amount of crude oil consumed in the process of production, collection, transportation, treatment, storage and transportation of crude oil production enterprises).

2.
Other oil consumption in the mining area refers to the amount of oil used by the cultural, educational, health, living and welfare departments to which the oil and gas field belongs
.

Crude oil loss refers to the natural loss of crude oil in the process of collection, transportation, storage, loading and unloading, dewatering, desalination, degassing, etc.
, as well as tank clearing and accident losses
.
The loss quota must be determined regularly and reported to the relevant departments for approval and implementation
.
The actual loss is calculated according to the actual loss if it is lower than the quota, and the loss above the quota is calculated
according to the quota loss.
If the loss of each stage is difficult to determine or the change is not large in each period, it can be calculated
according to the total loss rate determined.

The loss of the tank refers to the loss that occurs during the cleaning process at the bottom of the tank, due to the accumulation of a large amount of mud, sand, impurities, etc.
, and the loss can be reported according to the actual loss
.

The loss of accident refers to the loss of crude oil due to accidents in the process of storage and
transportation.
For example, the amount of loss from accidents such as running oil, oil spill, oil leakage, and fire must be carefully verified when calculating the amount of accident loss, and the loss of the recovery part must be reduced
.

Crude oil inventory refers to the sum of all tanks in the whole oilfield gathering and transportation system that meets the specified quality standards (or technical conditions stipulated in the contract) after purification and
processing.
It is necessary to establish a regular crude oil inventory inventory system, and the inventory should be carried out
at the same time as the specified unified settlement time.