The reason for the overlap of the straight lines in the graphs with the values obtained from the research materials in the Gunashli field (................) is that different values are obtained for each well. (.......) is the angle between the straight line and the axis (...........), which is due to the fact that wells operate from different horizons and the depth of gas supply differs from each other. Graphs (.........) have been plotted for Vver , Val and Vlay gases of each well. The optimal mode selected for these wells may be applied to similar wells.
(.......) is small in fountain wells and (.......) is large in gas lift wells. In many modes, some wells act as fountain wells.
At present, there are 90 fountain-gaslift and gaslift wells in the Gunashli field. Two of the surveyed wells are operated from the Fasila formation (wells 168 and 198N), 2 from the X horizon (wells 199 and 83N) and 1 from the IX horizon (well 189N). The gas supply depths of the wells are different. The gas is supplied to Well 168 from 2513 m from the gas room, to Well 198 from 1429 mm from the mechanical bypass valve, to Well 83 from 1199 mm from the mechanical bypass valve, to Well 199 from 2354 m from the bore of 1 row, and to Well 189 from 1500 m from the combined elevator.
On the other hand, a mode to be set 10-15 days after the setting of the mode reduces its accuracy, so it is necessary to set the optimal mode 2-3 times in 1 month. As the optimal modes set change frequently, it takes a lot of labor and time to determine a new optimal mode. Also, the longer the mode setting lasts, the more oil is lost. If we eliminate the indicated shortcomings, then the points in the Graph (.............) may be grouped on a straight line, which enables consumption of less labor and less time to select a new optimal regime, as the mode selected for one well may also be applied to another similar well.
Tthe research also uses the data from 10 wells and laboratory research from the Varyegan field, in addition to the Gunashli field. The study in the laboratory was conducted on a lift with length of L = 19.3 m and five different diameters (d = 63mm, d = 50mm, d = 38mm). The study at the Varyegan field was carried out in the wells equipped with gas lift valves.
The Graph (.........) was created based on the data of the well bottom pressure and supplied gas consumption. It was possible to group gas lift wells according to the angle coefficient generated by this graph with the axis (.....).The data obtained for all wells are collected on a straight line with a small error, and the angle of 51,80, generated by this straight line is obtained for the Gunashli field. Data from 9 wells in the Varyegan field were also used for the study. These wells are equipped with gas lift valves.
7 wells were surveyed in the Gunashli field and it was possible to measure the supplied gas, obtained oil and well bottom pressure (Figure 2.6.5). These wells were fountain gaslift wells. The average values of the achieved re sults are provided below
CONTINUATION OF CCONNECTIONS WITH OIL PIPELINES WITH RESTORATION OF WELLHEAD PRESSURE OF OIL PRODUCTION OF PRODUCTION WELLS FFROM OIL AND GAS OFFSHORE FIELDS
Azerbaijan State Oil And Industry University
Department of "Oil and Gas Transportation and Storage" Associate Professor Turkan G2
The Thesis briefly analizes connections to in-field oil pipelines by restoring the wellhead pressure of offshore oil and gas fields. In the Introduction section, it is stated that the processing of survey data to reduce oil losses during surveys in gas lift wells may produce a result enabling to group these gas lift wells and to apply the results of periodic surveys of one well in a particular group of wells to other wells in the same group with some error. If the in-well equipment of wells operated from same horizons is similar and gas is supplied from the same depth, then the optimal modes of these wells will be close to each other. This was confirmed by the results of laboratory tests. In order to accurately determine the values of parameters to be measured during a field study, it is necessary to reduce the variation interval of the working agent consumption. The design of the Gaslift well should ensure there are two channels in the well. Canal for high-pressure gas to be given to well and channel to lift gas- liquid mixture to the surface of the earth. Number of pipes injected into the well, their interaction, there is an oil system of lifts depending on the direction of gas supply and gas-liquid resistance, one and two pipes, depending on the number of pipes injected into the well, there are rings and central system lifts depending on the direction of the worker agent hitting the well. Key conditions for the efficient use of gas lift yield opportunities, is a proper definition of the construction of the lift and its working regime. Additional energy is provided from the surface of the earth to lift liquid in the exploitation of wells by gaslift. You have to work on choosing the gaslift lift's business regime, as well as minimum additional energy, to allow maximum or permitted liquid lifting for a specific well. There are 2 types of gas lift. Energy consumption should be lowest when extracting liquid from well, to ensure optimal harvesting from the well.