SU859613A1 - Method of predicting oil content in borehole output - Google Patents
Method of predicting oil content in borehole output Download PDFInfo
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- SU859613A1 SU859613A1 SU792857043A SU2857043A SU859613A1 SU 859613 A1 SU859613 A1 SU 859613A1 SU 792857043 A SU792857043 A SU 792857043A SU 2857043 A SU2857043 A SU 2857043A SU 859613 A1 SU859613 A1 SU 859613A1
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- oil
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- water
- oil content
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Description
(54) СПОСОБ ПРОГНОЗА ДОЛИ НЕФТИ В ПРОДУКЦИИ(54) METHOD FOR PREDICTING OIL SHARES IN PRODUCTS
1one
Изобретение относитс к промысловой геофизике и может быть использовано дл прогнозировани доли нефти и воды в продукции скважины до ввода ее в эксплуатацию .The invention relates to field geophysics and can be used to predict the share of oil and water in the production of a well prior to its commissioning.
Известен способ определени доли нефти в продукции скважины, состо щий в исследовании профил продуктивности действующей скважины с помощью влагомера 1.There is a known method for determining the oil share in the production of a well, which consists in studying the productivity profile of an existing well using a moisture meter 1.
Недостатком известгюго способа вл етс то, что он позвол ет исследовать только действующие скважины и не позвол ет определить возможные доли нефти и воды в продукции скважины до ввода ее в эксплуатацию .The disadvantage of the lime method is that it only allows the exploration of existing wells and does not allow for determining the possible fractions of oil and water in the production of the well before putting it into operation.
Известен способ прогноза доли нефти в продукции скважин, заключающийс в том, что измер ют нефтенасыщенность заводн емого пласта, в зкости и фазовые проницаемости дл нефти и воды, а затем, пользу сь уравнени ми фильтрации двухфазных жидкостей , рассчитывают соотнощение нефти и воды в продукции скважины 2.A known method for predicting the share of oil in the production of wells consists in measuring the oil saturation of the flooded formation, viscosity and phase permeabilities for oil and water, and then using the equations of filtration of two-phase fluids, calculate the ratio of oil and water in the well production 2
Известен способ прогноза доли нефти в продукции скважины, заключающийс в определении нефтенасыщенности пласта путемThere is a method of predicting the share of oil in the production of a well, which consists in determining the oil saturation of a formation by
СКВАЖИНWELLS
измерени пористости и удельного электрического сопротивлени 3.measuring porosity and electrical resistivity 3.
А это возможно,если известна соленость пластовой воды в продуктивном пласте.And this is possible if the salinity of the formation water is known in the reservoir.
Однако при разработке нефт ных месторождений с закачкой в продуктивные пласты поверхностных вод соленость пластовых вод измен етс в щироких пределах (от 1 до 300 г/л), В таких услови х известные способы определени нефтенасыщенности заводн емых пластов оказываютс непригодны10 миHowever, when developing oil fields injected into productive strata of surface waters, the salinity of the reservoir waters varies within a wide range (from 1 to 300 g / l). Under such conditions, the known methods for determining the oil saturation of wadded formations are unsuitable
Цель изобретени - повыщение точности определени параметров заводн емого пласта при неизвестной солености пластовых вод.The purpose of the invention is to increase the accuracy of determining the parameters of the water-logged formation at an unknown salinity of formation waters.
Указанна цель достигаетс тем, что в 15 ствол скважины последовательно закачивают глинистые растворы с различным удельным электрическим сопротивлением, после каждой закачки измер ют собственные потенциалы пород, по которым определ ют удельное сопротивление пластовой воды и по не20 му определ ют нефтенасыщенность пласта.This goal is achieved in that clay solutions with different electrical resistivity are sequentially pumped into the wellbore 15, after each injection, the intrinsic potentials of the rocks are measured, which determine the formation water resistivity and determine the oil saturation of the formation.
Последовательность технологических операций способа осуществл ют следующим образом .The sequence of technological operations of the method is carried out as follows.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792857043A SU859613A1 (en) | 1979-12-25 | 1979-12-25 | Method of predicting oil content in borehole output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792857043A SU859613A1 (en) | 1979-12-25 | 1979-12-25 | Method of predicting oil content in borehole output |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU859613A1 true SU859613A1 (en) | 1981-08-30 |
Family
ID=20866762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU792857043A SU859613A1 (en) | 1979-12-25 | 1979-12-25 | Method of predicting oil content in borehole output |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU859613A1 (en) |
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1979
- 1979-12-25 SU SU792857043A patent/SU859613A1/en active
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