Submit an Article
Become a reviewer
Vol 151
Pages:
168-172
Download volume:

On the prospect of creating wellbore gravimeters based on film accelerometers

Authors:
A. A. Molchanov1
K. M. Ermokhin2
S. K. Zaburdin3
About authors
  • 1 — G.V. Plekhanov Saint Petersburg Mining University
  • 2 — G.V. Plekhanov Saint Petersburg Mining University
  • 3 — G.V. Plekhanov Saint Petersburg Mining University
Date submitted:
2001-08-06
Date accepted:
2001-09-18
Date published:
2002-03-01

Abstract

Development of downhole gravimeter on modern highly sensitive elements on the basis of film accelerometers, providing high reliability of operation, for solving various geological problems: study of interwell space outside the well and below the well bottom to identify ore bodies; detection of oil targets and washed zones of oil fields in the late stage of development; control of gas injection and consumption in underground gas storages, etc. is proposed. Proceeding from real listed problems, the necessity and opportunity of creation of a downhole gravimeter-gradientmeter with sensitivity (0.05-0.1) - 10” 5 m/sec 2 has been scientifically proved. Such sensitivity is provided at the expense of high sensitivity of sensors, computer introduction of temperature corrections, consideration of device position in a borehole. There are theoretical calculations of possible gravity anomalies and its gradients over objects of regular geometric shape: a sphere, a vertical cylinder, a horizontal formation of finite thickness. The results of the calculations are compared with field observations during the exploration of copper and sulfide deposits and oil and gas fields. Experimental studies of the main units of the borehole gravimeter equipment were performed and their laboratory and bench tests were carried out, which confirmed the correctness of theoretical calculations.

Go to volume 151

References

  1. Андреев Б.А. Геологическое истолкование гравитационных аномалий / Б.А.Андреев, И.Г.Клушин. М.: Недра, 1963.
  2. Гравиразведка: Справочник геофизика / Под ред. Е.АМудрецовой. М.: Недра, 1981.
  3. Лукавченко П.И. Гравитационный каротаж и возможности его применения в комплексе геологических исследований / П.И.Лукавченко, И.Н.Михайлов, В.Н.Симонов // Прикладная геофизика. 1975. Вып.80.
  4. Молчанов А.А. Геофизические исследования горизонтальных нефтегазовых скважин / А.А.Молчанов, Э.Е.Лукьянов, В А.Рапин / МАНЭБ. СПб, 2001.

Similar articles

Reducing risk when drilling wells in complex mining and geological and technological conditions
2002 P. Yu. Taninskii
Methodology for the formation of innovative programs of the oil production enterprise
2002 N. A. Pimenova
Changing the condition of subsoil use in the oil industry with the introduction of the unified tax on mineral extraction
2002 T. L. Alekseenko, A. A. Mambetova
Integrated geophysical and geoelectrochemical studies of the corrosion hazard of steel trunk pipelines
2002 N. N. Efimova, N. A. Kasyankova, V. R. Olekseichuk
Application of multilayer elastic jackets in oil equipment (to the issue of oil recovery enhancement methods)
2002 A. V. Shcherbin
Development of a methodology for the restructuring of a vertically integrated oil company
2002 A. V. Petrov